WO2015131536A1

WO2015131536A1 - Signal transmission method, electronic device and control system

Info

Publication number: WO2015131536A1
Application number: PCT/CN2014/090793
Authority: WO
Inventors: 黎海敏
Original assignee: 华为技术有限公司
Priority date: 2014-03-06
Filing date: 2014-11-11
Publication date: 2015-09-11
Also published as: CN104900045A; CN104900045B

Abstract

A signal transmission method is used for solving the technical problem that an infrared remote controller in prior art can not control a camera remotely. The method comprises: a first controlled electronic device obtaining a first infrared control signal carrying a controlled device identifier; the first controlled electronic device analyzing the first infrared control signal, determining whether the controlled device identifier is the same as a first device identifier of the first controlled electronic device; when the controlled device identifier is not the same as the first device identifier, the first controlled electronic device transmitting the first infrared control signal to a second controlled electronic device. A corresponding electronic device and a corresponding control system are also disclosed.

Description

Signal transmission method, electronic device and control system

Technical field

The present invention relates to the field of communications, and in particular, to a signal transmission method, an electronic device, and a control system.

Background technique

Infrared remote control technology has become a universally applied technology. Many devices, such as TVs, DVDs, and video cameras, have infrared control functions, which can be conveniently controlled by corresponding infrared remote controls. The general infrared remote control system consists of two parts: the transmitting (infrared remote control) and the receiving (infrared decoding device, such as TV). The infrared remote control and the corresponding infrared receiving device constitute an infrared remote control system.

When the user presses the button on the keyboard of the infrared remote controller, the infrared remote controller sends an infrared waveform to the outside, and the corresponding infrared receiving device can respond after receiving the infrared waveform.

For example, an infrared waveform is shown in Figure 1. The first 16 bits are the system code (user identification code), which is used to distinguish different infrared receiving devices, and the last 16 bits are 8-bit data code (operating code) and inverted code. After the infrared receiving device decodes the received 32-bit binary code, it can respond to the control of the infrared remote controller according to the system code and the data code.

Infrared remote control system is very convenient to use, but it also has certain limitations: the infrared receiving device has an infrared receiving end with a certain receiving angle limit, and the corresponding infrared remote control has a specific controllable range. When the infrared receiving device is placed in the infrared When the remote controller is outside the controllable range, the infrared receiving device cannot respond.

For example, consider a scenario where some cameras need to be arranged with multiple cameras for imaging. For example, a camera is placed in the middle of the conference hall, and a camera is placed in each of the four top corners of the venue, as shown in Figure 2. Among them, the camera 1 is in the controllable range of the infrared remote controller, and can be normally controlled (the inner side of the two dotted lines in Fig. 2 is the controllable range of the infrared remote controller), and the

cameras

2, 3, 4 and 5 are placed. Due to the limitation of the receiving angle, the infrared signal sent by the infrared remote controller cannot be received, so that the infrared remote controller cannot control these cameras.

It can be seen that in the prior art, when the distance between the infrared receiving device and the infrared remote controller is relatively long, the infrared remote controller cannot control the infrared receiving devices, and the control of the infrared remote controller has a large limitation.

Summary of the invention

The embodiments of the present invention provide a signal transmission method, an electronic device, and a control system, which are used to solve the technical problem that the infrared remote controller cannot remotely control the infrared receiving device in the prior art.

In a first aspect of the invention, a signal transmission method is provided, comprising the steps of:

The first controlled electronic device obtains a first infrared control signal, where the first infrared control signal carries a controlled device identifier;

The first controlled electronic device parses the first infrared control signal, and determines whether the controlled device identifier and the first device identifier of the first controlled electronic device are the same device identifier;

When the controlled device identifier is not the same device identifier as the first device identifier, the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device.

With reference to the first aspect, in a first possible implementation, after determining whether the controlled device identifier and the first device identifier of the first controlled electronic device are the same device identifier, the method further includes: when When the controlled device identifier and the first device identifier are the same device identifier, the first controlled electronic device responds to the first infrared control signal.

With reference to the first aspect, in a second possible implementation, the first controlled electronic device obtains the first infrared control signal, including: the infrared receiving of the first controlled electronic device by the first controlled electronic device The first infrared control signal is obtained by the terminal, or the first controlled electronic device obtains the first infrared control signal through a serial input interface of the first controlled electronic device.

In conjunction with the first aspect, the first possible implementation, or the second possible implementation, in a third possible implementation, the first controlled electronic device transmits the first infrared control signal to the first Two controlled electronic devices, including:

The first controlled electronic device performs amplification processing on the first infrared control signal;

The first controlled electronic device transmits the amplified first infrared control signal to the second controlled electronic device through a serial output interface of the first controlled electronic device.

In conjunction with the first aspect, the second possible implementation, or the third possible implementation, in a fourth possible implementation, the first controlled electronic device transmits the first infrared control signal to Simultaneously or after the second controlled electronic device, the method further includes: the first controlled electronic device turning off an infrared response function of the first controlled electronic device.

With the fourth possible implementation, in a fifth possible implementation, after the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device, the method further includes:

The first controlled electronic device receives a second infrared control signal;

The first controlled electronic device transmits the second infrared control signal to the second controlled electronic device through a serial output interface of the first controlled electronic device.

According to a second aspect of the present invention, an electronic device is provided, including:

An acquiring module, configured to obtain a first infrared control signal, where the first infrared control signal carries a controlled device identifier;

a processing module, configured to parse the first infrared control signal, and determine whether the controlled device identifier and the first device identifier of the first controlled electronic device are the same device identifier;

And an output module, configured to: when the controlled device identifier and the first device identifier are not the same device identifier, transmit the first infrared control signal to the second controlled electronic device.

With reference to the second aspect, in a first possible implementation, the processing module is further configured to: respond to the first infrared control when the controlled device identifier and the first device identifier are the same device identifier signal.

With reference to the second aspect, in a second possible implementation, the acquiring module is specifically configured to: obtain the first infrared control signal by using an infrared receiving end of the electronic device, or pass the serial of the electronic device The input interface obtains the first infrared control signal.

In combination with the second aspect or the first possible implementation or the second possible implementation, in the third In a possible implementation manner, the output module is specifically configured to: perform amplification processing on the first infrared control signal; and transmit the amplified first infrared control signal to the second through a serial output interface of the electronic device Controlled electronic equipment.

In combination with the second aspect, the second possible implementation, or the third possible implementation, in a fourth possible implementation, the processing module is further configured to: turn off the infrared of the first controlled electronic device Response function.

With reference to the fourth possible implementation, in a fifth possible implementation, the acquiring module is further configured to receive a second infrared control signal;

The output module is further configured to transmit to the second controlled electronic device through a serial output interface of the electronic device.

In a third aspect of the invention, a control system is provided, comprising:

At least two controlled electronic devices, wherein each controlled electronic device has a serial input interface and a serial output interface, and each controlled electronic device is sequentially connected through a serial input interface and a serial output interface;

An infrared remote controller for controlling one of the controlled electronic devices or controlling any of the remaining controlled electronic devices by the controlled electronic device.

With reference to the third aspect, in a first possible implementation manner, the serial input interface has M pins, where M is a positive integer, and at least one of the pins is used to transmit an infrared control signal; and the string The row output interface has N pins, N is a positive integer, and at least one of the pins is used to transmit an infrared control signal.

In the embodiment of the present invention, the controlled electronic device obtains an infrared control signal, and the infrared control signal is transmitted between the controlled electronic devices, so that the controlled electronic device can be directly controlled by the infrared remote controller without other specialization. The controller saves hardware costs.

After receiving the first infrared control signal, the first controlled electronic device compares whether the controlled device identifier carried in the signal and the first device identifier are the same device identifier, and if not, the The first controlled electronic device transmits the first infrared control signal to the next controlled power The sub-device can ensure that the corresponding infrared control signal can be responded by the corresponding controlled electronic device, thereby improving the control accuracy, and controlling the plurality of controlled electronic devices through an infrared remote controller.

A plurality of controlled electronic devices are connected to each other, wherein only one controlled electronic device can receive an infrared control signal sent by the infrared remote control, and the infrared control signal carries a corresponding controlled device identifier, and the infrared remote control can be received by the infrared control signal The controlled electronic device that sends the infrared control signal can transmit the received infrared control signal to the corresponding controlled electronic device, thereby controlling a plurality of controlled electronic devices through an infrared remote controller, and the controlled electronic devices The position of the device can be set arbitrarily, and it is not necessary to be set within the controllable range of the infrared remote controller, which improves the practicality of the infrared remote control system, and enables the infrared remote control system to be applied in more scenarios.

DRAWINGS

1 is a schematic diagram of an infrared waveform emitted by an infrared remote controller in the prior art;

2 is a schematic diagram of controlling a camera by an infrared remote controller in the prior art;

3 is a main flowchart of a signal transmission method according to an embodiment of the present invention;

4 is a structural block diagram of an electronic device according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a control system according to an embodiment of the present invention; FIG.

FIG. 6 is a structural block diagram of another electronic device according to an embodiment of the present invention.

detailed description

The signal transmission method in the embodiment of the present invention may include: the first controlled electronic device obtains a first infrared control signal, where the first infrared control signal carries a controlled device identifier; and the first controlled electronic device has a Determining, by the first infrared control signal, whether the identifier of the controlled device and the first device identifier of the first controlled electronic device are the same device identifier; and when the controlled device identifier and the first device identifier are When the same device identifier is not, the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device.

In the embodiment of the present invention, the controlled electronic device obtains an infrared control signal, and is set in each controlled electronic device. The infrared control signal is also transmitted between the devices, so that the controlled electronic device can be directly controlled by the infrared remote controller, and no special controller is needed, thereby saving hardware costs.

After receiving the first infrared control signal, the first controlled electronic device compares whether the controlled device identifier carried in the signal and the first device identifier are the same device identifier, and if not, the The first controlled electronic device transmits the first infrared control signal to the next controlled electronic device, thereby ensuring that the corresponding infrared control signal can be responded by the corresponding controlled electronic device, thereby improving control accuracy and passing An infrared remote control can control multiple controlled electronic devices.

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the embodiment of the present invention, the controlled electronic device may be a different electronic device such as a video camera, a smart TV, a PC (personal computer), a PAD (tablet computer), a mobile phone, or the like.

Additionally, the terms "system" and "network" are used interchangeably herein. The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

Referring to FIG. 3, an embodiment of the present invention provides a signal transmission method, and main steps of the method are described as follows.

Step 301: The first controlled electronic device obtains a first infrared control signal, where the first infrared control signal carries a controlled device identifier.

Preferably, in the embodiment of the present invention, there may be multiple controlled electronic devices, wherein one controlled electronic device is located within a controllable range of an infrared remote controller, and the remaining controlled electronic devices may be located in the infrared remote controller. Outside the controllable range. For example, all of the controlled electronic devices and the infrared remote control can constitute an infrared remote control system. The first controlled electronic device may be any controlled electronic device in the infrared remote control system.

Preferably, in the embodiment of the present invention, each controlled electronic device in the infrared remote control system has a serial input interface and a serial output interface, and each controlled electronic device passes its respective serial input. The interface and the serial output interface are connected one after another. For example, the first controlled electronic device is connected through the serial output interface of the first controlled electronic device and the serial input interface of the second controlled electronic device, and the second is controlled. The control electronic device is connected to the serial output interface of the third controlled electronic device through the serial output interface of the second controlled electronic device, and the like.

Preferably, each controlled electronic device in the infrared remote control system may have an infrared receiving end for receiving a corresponding infrared control signal. Since the infrared control signal that needs to be received may not only be emitted by the infrared remote controller, each of the controlled electronic devices in the infrared remote control system may have an infrared receiving end.

In this connection relationship, only one controlled electronic device can be located within the controllable range of the infrared remote controller, for example, only the first controlled electronic device is located within the controllable range of the infrared remote controller, and the other The controlled electronic devices can all be located outside the controllable range of the infrared remote controller, so that the corresponding controlled device can be better set at the desired position without being controlled by the infrared remote controller. Restriction.

If this is the case, preferably, it is only within the controllable range of the infrared remote controller. The controlled electronic device has an infrared receiving end, and the remaining controlled electronic devices may have an infrared receiving end or no infrared receiving end. Because the controlled electronic device located within the controllable range of the infrared remote controller is directly controlled by the infrared remote controller, the serial input interface of the controlled electronic device is not connected to other controlled electronic devices, that is, The serial input interface of the controlled electronic device cannot receive the infrared control signal transmitted by the other controlled electronic device, and the infrared control signal received by the controlled electronic device is directly sent by the infrared remote controller, so the controlled electronic device needs There is an infrared receiving end to receive the infrared control signal sent by the infrared remote controller. In addition to the controlled electronic device, the serial input interfaces of the other controlled electronic devices are connected to the serial output interfaces of the corresponding controlled electronic devices, and are capable of receiving infrared control signals transmitted by other electronic devices. If you do not consider receiving other infrared signals, you do not need to set the infrared receiver, which can save hardware costs.

In the embodiment of the present invention, the first controlled electronic device may refer to the controlled electronic device in the infrared remote control system that is located within the controllable range of the infrared remote controller, or may also refer to the infrared remote control system. Any controlled electronic device located outside the controllable range of the infrared remote controller.

In the embodiment of the present invention, the infrared remote controller may include a digital button having 0-9.

In an embodiment of the invention, the first infrared control signal carries the identifier of the controlled device. In the embodiment of the present invention, a controlled device identifier uniquely corresponds to one controlled device. For example, if the user wants to select the second controlled device, the user can select by at least pressing the numeric button representing the second controlled device.

In the embodiment of the present invention, the function button in the infrared remote controller may refer to the remaining buttons of the infrared remote controller except the digital button.

Preferably, in an embodiment of the present invention, the digital button in the infrared remote controller has a function of selecting a device identifier, that is, after pressing a digital button by the infrared remote controller, for example, a digital button is pressed. 3′, the first infrared control signal sent by the infrared remote controller carries a corresponding controlled device identifier, for example, the controlled device identifier is “3”. In this case, the selection of the controlled device can be achieved by pressing the corresponding numeric button. And, in this case, the first infrared control signal may be an infrared control signal sent after pressing any one of the digital keys, or The first infrared control signal may also be an infrared control signal sent after pressing any function button in the infrared remote controller, and the first infrared control signal carries the controlled device identifier.

Preferably, in an embodiment of the present invention, the digital button of the infrared remote controller does not have a selection function of the device identifier, that is, only a digital button is pressed by the infrared remote controller, and the infrared remote controller sends the The corresponding control device identifier cannot be carried in the infrared control signal. In this case, the selection of the controlled device can be performed by means of a combination of buttons. For example, the user can select a controlled device by pressing a function button + a digital button on the infrared remote controller. The function button may be, for example, a Ctrl button on the infrared remote controller, or may be other buttons on the infrared remote controller, and specifically, which function button may be set when the infrared remote controller is shipped from the factory. Or it can be set by the user. Moreover, in this case, the first infrared control signal may be an infrared control signal sent after at least pressing any digital button, for example, the first infrared control signal may be a function button pressed + any Infrared control signal sent after the digital button.

Preferably, the first controlled electronic device obtains the first infrared control signal, and specifically, the first controlled electronic device obtains the first infrared control signal by using an infrared receiving end, or the first A controlled electronic device obtains the first infrared control signal through a serial input interface.

If the first controlled electronic device is a controlled electronic device located within a controllable range of the infrared remote controller, the first controlled electronic device is received by infrared on the first controlled electronic device Receiving, by the end, the first infrared control signal sent by the infrared remote controller; if the first controlled electronic device is any controlled electronic device located outside the controllable range of the infrared remote controller, the first A controlled electronic device obtains the first infrared control signal transmitted by another controlled electronic device through a serial input interface of the first controlled electronic device.

Preferably, in the embodiment of the present invention, the infrared signal is transmitted through a serial interface. The existing serial interface includes multiple pins, generally 9 pins, of which 3 pins are defined for serial signal transmission, and the remaining 6 pins are Idle pin. In the embodiment of the present invention, at least one of the remaining six idle pins may be defined as an index for performing infrared signal transmission. For the foot, the purpose of transmitting the infrared signal through the serial interface can be realized by the pin customized by the embodiment of the present invention.

Step 302: The first controlled electronic device parses the first infrared control signal, and determines whether the controlled device identifier and the first device identifier of the first controlled electronic device are the same device identifier.

After receiving the first infrared control signal, the first controlled electronic device may parse the first infrared control signal to parse the controlled device carried in the first infrared control signal Logo. In the infrared remote control system, each controlled electronic device has a unique device identifier corresponding to itself. Preferably, each controlled electronic device can store its own device identifier locally. After the first controlled electronic device parses the identifier of the controlled device carried in the first infrared control signal, the controlled device may identify the first controlled electronic device and the locally controlled electronic device. The first device identifiers of the device are compared to determine whether the two devices are the same device identifier, that is, whether the controlled electronic device that the user wants to control is the user.

Further, in an embodiment of the present invention, after determining whether the identifier of the controlled device and the first device identifier of the first controlled electronic device are the same device identifier, the method further includes: when the controlled device identifier is When the first device identifier is the same device identifier, the first electronic device is responsive to the first infrared control signal.

If it is determined that the controlled device identifier and the first device identifier are the same device identifier, determining that the controlled electronic device that the user wants to control is the first controlled electronic device, the first controlled electronic device The device can be responsive to the first infrared control signal.

Preferably, in an embodiment of the present invention, if the first infrared control signal is an infrared control signal sent after pressing any one of the digital remote controllers, if the controlled device identifier is determined The first controlled electronic device may respond to the first infrared control signal, and the first controlled electronic device may determine the first controlled electronic device. a selected controlled electronic device; if the first infrared control signal is an infrared control signal sent after pressing at least one function button of the infrared remote controller, if the controlled device is determined The first controlled electronic device may respond to the first infrared control signal to implement a function corresponding to the corresponding function button.

In this embodiment, the first controlled electronic device may continue to transmit the first infrared control signal to the second controlled electronic device simultaneously with or after responding to the first infrared control signal. The device, of course, the second electronic device does not respond to the first infrared control signal, after the operation process of

steps

301 and 302 is performed, the second controlled electronic device continues the first infrared control signal Transfer to the next controlled electronic device. When the first controlled electronic device transmits to the last controlled electronic device, the controlled electronic device may continue to transmit the first infrared control signal downward after adopting the operation process of step 301 and step 302. Then, it may simply not respond to the first infrared control signal, or may also discard the first infrared control signal.

Preferably, in an embodiment of the present invention, the first controlled electronic device may control the first controlled electronic device to turn on or keep the first controlled electronic device in response to the first infrared control signal. The infrared response function of the device.

Step 303: When the controlled device identifier and the first device identifier are not the same device identifier, the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device.

If the first controlled electronic device determines that the controlled device identifier is not the same device identifier as the first device identifier, and determines that the controlled electronic device that the user wants to control is not itself, the first controlled The electronic device can transmit the first infrared control signal to the second controlled electronic device connected to the first controlled electronic device. The serial output interface of the first controlled electronic device is connected to the serial input interface of the second controlled electronic device, and the first controlled electronic device may be specifically through the first electronic device. The serial output interface transmits the first infrared control signal to a serial input interface of the second controlled electronic device, and the second controlled electronic device is obtainable through a serial input interface of the second electronic device The first infrared control signal.

If the first controlled device determines that the first device identifier of the first controlled electronic device is the same, when the controlled device identifier is not the same device identifier as the first device identifier, The design of the controlled electronic device located in the controllable range of the infrared remote controller in the infrared remote control system Providing the identifier, the first controlled electronic device transmits the first infrared control signal received by the infrared receiving end of the first controlled electronic device to the second controlled electronic device; When the control device identifier is not the same device identifier as the first device identifier, if the first controlled electronic device determines that the first device identifier of the first controlled electronic device is not located in the infrared remote control system The device identifier of the controlled electronic device within the controllable range of the infrared remote controller, wherein the first controlled electronic device receives the first infrared control through the serial input interface of the first controlled electronic device The signal is transmitted to the second controlled electronic device.

In an optional implementation manner, after the first controlled electronic device obtains the first infrared control signal in step 301, the first infrared control signal may be directly transmitted to the second controlled The electronic device, i.e., the transmission operation, is not affected by the result of the determination operation of step 302.

Specifically, the serial output interface of the first controlled electronic device is connected to the serial input interface of the second controlled electronic device, and the first controlled electronic device after obtaining the first infrared control signal Transmitting, by the serial output interface of the first electronic device, the first infrared control signal to a serial input interface of the second controlled electronic device, and the second controlled electronic device passes the The serial input interface of the two electronic devices obtains the first infrared control signal.

In this optional implementation, the transmission operation and the determining operation of step 302 are performed independently of each other, and have no effect on each other. Therefore, there may be no specific sequential execution order between the two operations, and the execution may be performed in parallel. It is also possible to perform a judgment operation after performing a transfer operation.

In the optional implementation, the first controlled electronic device determines whether the controlled device identifier and the first device identifier of the first controlled electronic device are the same device identifier, and when the controlled device identifier is When the first device identifier is the same device identifier, the first electronic device is responsive to the first infrared control signal.

According to the optional implementation, a certain controlled electronic device (such as the first controlled electronic device) transmits the infrared control signal to the phase after receiving the infrared control signal (such as the first infrared control signal) Another controlled electronic device (such as the second controlled electronic device) connected, and the infrared control signal is transmitted through a serial interface, that is, transmitted by hardware, and the transmission speed is very fast, therefore, Each controlled electronic device can receive the infrared control signal and analyze the infrared control signal at the same time. Therefore, no matter which controlled electronic device is to be controlled by the infrared control signal, the infrared control signal can be quickly responded to. .

Preferably, in the embodiment of the present invention, the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device, including: the first controlled electronic device will be the first The infrared control signal is amplified; the first controlled electronic device transmits the amplified first infrared control signal to the second controlled electronic device through the serial output interface of the first controlled electronic device.

Because the signal may be attenuated during transmission, because the path that the signal needs to be transmitted may be longer in the embodiment of the present invention, more controlled electronic devices may pass through. Therefore, a controlled electronic device transmits the infrared control signal. In the past, the infrared control signal may be first amplified, and then the amplified infrared control signal is transmitted, so as to avoid the signal degradation caused by the subsequent controlled electronic device is poor or even unable to receive the signal.

Preferably, in an embodiment of the present invention, if the first infrared control signal is a control signal for indicating that the controlled device identified by the controlled device identifier is turned on or remains on the infrared response function, When the controlled device identifier and the first device identifier are not the same device identifier, the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device simultaneously or after, The first controlled electronic device may turn off an infrared response function of the first controlled electronic device. Correspondingly, when the controlled device identifier and the first device identifier are the same device identifier, the first controlled electronic device specifically includes, according to the first infrared control signal, enabling or maintaining the first The infrared response function of the controlled electronic device. In this embodiment, only one controlled electronic device turns on its own infrared response function, and the other controlled electronic devices turn off the infrared response function. After the first infrared control signal, if another infrared control signal is received, only the controlled electronic device that turns on the infrared response function will respond, and other electronic devices will not respond, that is, other electronic devices only have signals. The function of the transmission without the signal response.

In general, the invention can be introduced by two larger embodiments.

Embodiment 1

The digital button in the infrared remote controller has a function of selecting a device identifier, that is, after the digital remote controller presses a digital button, for example, the digital button "3" is pressed, the infrared remote controller sends the button. The first infrared control signal carries a corresponding controlled device identifier. For example, the controlled device identifier is “3” at this time. In this case, the selection of the controlled device can be achieved by pressing the corresponding numeric button. Moreover, in this case, the first infrared control signal may be an infrared control signal sent after pressing any one of the digital buttons, or the first infrared control signal may also be pressed into the infrared remote controller. The infrared control signal sent after any function button is pressed, and the first infrared control signal carries the identifier of the controlled device. That is, in the first embodiment, the first infrared control signal may be an infrared control signal for performing control of the controlled device, or may also be an infrared control signal for transmitting control information.

The first controlled electronic device is any controlled electronic device in the infrared remote control system. The first controlled electronic device receives the first infrared control signal, and determines whether the controlled device identifier carried in the first infrared control signal and the first device identifier are the same device identifier.

If the controlled device identifier and the first device identifier are the same device identifier, the first controlled electronic device responds to the first infrared control signal, for example, if the first infrared control signal is pressed The infrared control signal sent after the digital button in the infrared remote controller is sent, the first controlled electronic device may determine that the first controlled electronic device is the selected controlled electronic device in response to the first infrared control signal The device, if the first infrared control signal is an infrared control signal sent after pressing at least one function button of the infrared remote controller, the first controlled electronic device may respond to the first infrared control signal, Realize the function corresponding to the corresponding function button.

At the same time, the first controlled electronic device still transmits the first infrared control signal to the second controlled electronic device, and of course the second electronic device does not respond to the first infrared control signal, After the operation of step 301 and step 302, the second controlled electronic device continues to transmit the first infrared control signal to the next controlled electronic device. When the first controlled electronic device transmits to the last controlled electronic device, the controlled electronic device adopts

steps

301 and 302. After the operation process, since the first infrared control signal cannot be further transmitted downward, the first infrared control signal may not be responded to, or the first infrared control signal may be discarded.

If the controlled device identifier is not the same device identifier as the first device identifier, the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device, The second controlled electronic device then goes through the same operation process to determine whether to respond to the first infrared control signal.

And, if the first controlled electronic device is to transmit the first infrared control signal to the second controlled electronic device, the first controlled electronic device may first perform the first infrared control signal Amplifying, and transmitting the amplified first infrared control signal to the second controlled electronic device.

In the first embodiment, after receiving the infrared control signal, each controlled electronic device in the infrared control system must first determine whether the controlled device identifier and its own device identifier are the same device identifier, and then Determine if you want to respond or not. This will make the control more accurate.

Embodiment 2

The digital button of the infrared remote controller does not have the function of selecting the device identifier, that is, only one digital button is pressed by the infrared remote controller, and the infrared control signal sent by the infrared remote controller cannot carry the corresponding controlled device. Logo. In this case, the selection of the controlled device can be performed by means of a combination of buttons. For example, the user can select a controlled device by pressing a function button + a digital button on the infrared remote controller. The function button may be, for example, a Ctrl button on the infrared remote controller, or may be other buttons on the infrared remote controller, and specifically, which function button may be set when the infrared remote controller is shipped from the factory. Or it can be set by the user. Moreover, in this case, the first infrared control signal may be an infrared control signal sent after at least pressing any digital button, for example, the first infrared control signal may be a function button pressed + any Infrared control signal sent after the digital button. That is, in the second embodiment, the first infrared control signal may be a control signal for performing control of the controlled device.

The first controlled electronic device is any controlled electronic device in the infrared remote control system. Receiving, by the first controlled electronic device, the first infrared control signal, determining the first infrared control signal Whether the controlled device identifier carried in the device and the first device identifier are the same device identifier.

If the controlled device identifier and the first device identifier are the same device identifier, the first controlled electronic device controls the first controlled electronic device to be turned on or kept in response to the first infrared control signal. The infrared response function of the first controlled electronic device.

In this embodiment, the first controlled electronic device may continue to transmit the first infrared control signal to the second controlled electronic device simultaneously with or after responding to the first infrared control signal. The device, of course, the second electronic device does not respond to the first infrared control signal, and the second controlled electronic device continues to transmit the first infrared control signal to the next controlled electronic device, and The second controlled electronic device can turn off the infrared response function of the second controlled electronic device. When the first infrared control signal is transmitted to the last controlled electronic device, the controlled electronic device can no longer continue to transmit the first infrared control signal downward, and may only not respond to the first infrared control signal. And the infrared response function of the controlled electronic device is turned off.

And if the controlled device identifier is not the same device identifier as the first device identifier, the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device. Moreover, the first controlled electronic device can turn off the infrared response function of the first controlled electronic device.

In the second embodiment, after the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device, the method further includes: the first controlled electronic device receiving the second An infrared control signal; the first controlled electronic device transmits the second infrared control signal to the second controlled electronic device through a serial output interface of the first controlled electronic device.

In this embodiment, the second infrared control signal can be used to carry control information because the first infrared control signal is used to make a selection of a controlled device. That is, the second infrared control signal may be an infrared control signal sent after pressing at least one function button of the infrared remote controller.

In this embodiment, since the corresponding control has been selected by the first infrared control signal In the electronic device, only the selected controlled electronic device turns on or maintains the infrared response function, and the other controlled electronic devices turn off the infrared response function, so the second infrared control signal can continue to carry the controlled device. The identifier of the controlled device may not be carried in the identifier or the second infrared control signal. Because the controlled electronic device that has turned off the infrared response function does not analyze after receiving the second infrared control signal, the second infrared control signal is directly transmitted to the next controlled electronic device, and is turned on or maintained. After receiving the second infrared control signal, the controlled electronic device that has turned on the infrared response function does not perform the judgment of whether the device identification is consistent, but directly responds to the second infrared control signal to implement the function corresponding to the corresponding function button. .

If the first controlled electronic device previously determines that the controlled device identifier and the first device identifier are the same device identifier, the first controlled electronic device has turned on or remains on the first controlled electronic device. The infrared response function of the device. After receiving the second infrared control signal, the first controlled electronic device may directly respond, without determining whether the controlled device identifier and the first device identifier are the same device identifier.

If the first controlled electronic device previously determines that the controlled device identifier and the first device identifier are not the same device identifier, the first controlled electronic device has turned off the infrared of the first controlled electronic device Response function. After the first controlled electronic device receives the second infrared control signal, the second infrared control signal may be directly transmitted to the second controlled electronic device without determining the identifier of the controlled device. Whether the first device identifier is the same device identifier.

In the second embodiment, only one device identifier is determined, and then each controlled electronic device does not need to perform judgment, which simplifies the operation steps and improves the efficiency of information processing.

Referring to FIG. 4, an embodiment of the present invention provides an electronic device, where the electronic device may include an obtaining module 401, a processing module 402, and an output module 403. Preferably, the electronic device described in the embodiment of FIG. 4 may be the same electronic device as the controlled electronic device as described above, for example, may be the same electronic device as the first controlled electronic device.

The obtaining module 401 can be configured to obtain a first infrared control signal, where the first infrared control signal carries a controlled device identifier.

The processing module 402 is configured to parse the first infrared control signal, and determine whether the controlled device identifier and the first device identifier of the first controlled electronic device are the same device identifier.

The output module 403 can be configured to: when the controlled device identifier and the first device identifier are not the same device identifier, transmit the first infrared control signal to the second controlled electronic device.

Preferably, the processing module 402 is further configured to respond to the first infrared control signal when the controlled device identifier and the first device identifier are the same device identifier.

Preferably, the obtaining module 401 is specifically configured to: obtain the first infrared control signal by using an infrared receiving end of the electronic device, or obtain the first infrared control signal by using a serial input interface of the electronic device.

Preferably, the output module 403 is specifically configured to: perform amplification processing on the first infrared control signal; and transmit the amplified first infrared control signal to the second controlled electronic device through a serial output interface of the electronic device device.

Preferably, the processing module 402 is further configured to: turn off an infrared response function of the first controlled electronic device.

Preferably, the obtaining module 401 is further configured to: receive the second infrared control signal; the output module 403 is further configured to: transmit to the second controlled electronic device by using a serial output interface of the electronic device.

Referring to FIG. 5, an embodiment of the present invention provides a control system, which may be, for example, an infrared control system as described above, such as the controlled electronic devices and the infrared remote controller described in the previous embodiments. Both are part of the control system. The control system can include at least two controlled electronic devices 501 and an infrared remote control 502. In FIG. 5, only four controlled electronic devices are included as an example.

Each of the at least two controlled electronic devices 501 can have a serial input interface and a serial output interface, and each controlled electronic device passes through a serial input interface and serial output. The interfaces are connected in sequence. The number 1 in Figure 5 represents the serial input interface and the number 2 represents the serial output interface. The infrared receiving end is also shown by the numeral 3 in FIG. 5, and FIG. 5 only takes the infrared receiving end of the controlled electronic device 501 located within the controllable range of the infrared remote controller 502 as an example.

The infrared remote controller 502 can be used to control a controlled electronic device of the at least two controlled electronic devices 501, or control any remaining controlled electronic devices by the controlled electronic device.

As shown in FIG. 5, the controlled electronic device 501 located at the leftmost side is located within the controllable range of the infrared remote controller 502, and the remaining controlled electronic devices 501 are located outside the controllable range of the infrared remote controller 502. The infrared remote controller 502 can be used to control the controlled electronic device 501 located within the controllable range of the infrared remote controller 502, or the infrared remote controller 502 can also be used to pass the controlled range within the infrared remote controller 502. The control electronic device 501 controls any of the remaining electronic devices, and the specific control manner is as described in the signal transmission method section of the present application, and details are not described herein again.

Preferably, in the embodiment of the present invention, the serial input interface has M pins, M is a positive integer, at least one of the pins is used for transmitting an infrared control signal; and the serial output interface has N One pin, N is a positive integer, at least one of which is used to transmit an infrared control signal. Among them, N and M may be the same or different.

Preferably, in the embodiment of the present invention, the infrared signal is transmitted through a serial interface, and the serial interface includes a serial input interface and a serial output interface. The existing serial interface includes a plurality of pins, generally 9 pins, that is, M=9. Three pins have been defined for serial signal transmission, and the remaining five pins are idle. In the embodiment of the present invention, at least one of the remaining five idle pins may be defined as a pin for performing infrared signal transmission, and the pin through the embodiment of the present invention may be implemented through serial Interface for the purpose of transmitting infrared signals.

In the embodiment of the present invention, the controlled electronic device obtains an infrared control signal, and the infrared control signal is transmitted between the controlled electronic devices, so that the controlled electronic device can be directly set by the infrared remote controller. Controls are available, eliminating the need for additional specialized controllers and saving on hardware costs.

Referring to FIG. 6 , an embodiment of the present invention provides another electronic device 600 , which may include an obtaining module 601 , a processing module 602 , and an output module 603 . Preferably, the electronic device 600 of the embodiment of FIG. 6 may be the same electronic device as the controlled electronic device as described above, for example, may be the same electronic device as the first controlled electronic device.

The serial output interface of the electronic device 600 is connected to a serial input interface of an adjacent electronic device, and the electronic device 600 includes an acquisition module, a processing module, and an output module;

The obtaining module 601 can be configured to obtain a first infrared control signal, where the first infrared control signal carries a controlled device identifier.

The processing module 602 may be configured to parse the first infrared control signal to obtain the controlled device identifier, and respond when determining that the controlled device identifier and the first device identifier of the electronic device are the same device identifier The first infrared control signal;

An output module 603 can be configured to pass the first infrared through a serial output interface of the electronic device A control signal is transmitted to the adjacent electronic device.

Preferably, the obtaining module 601 is specifically configured to: obtain the first infrared control signal by using an infrared receiving end of the electronic device, or obtain the first infrared control signal by using a serial input interface of the electronic device.

Preferably, the output module 603 is specifically configured to: perform amplification processing on the first infrared control signal; and transmit the amplified first infrared control signal to the second controlled electronic device through a serial output interface of the electronic device device.

Preferably, the processing module 602 is configured to: when determining that the controlled device identifier and the first device identifier of the electronic device are the same device identifier, the responding to the first infrared control signal specifically includes: the processing module 602 is configured to Determining, according to the first infrared control signal, the first infrared control signal as a control signal for indicating that the controlled device identified by the controlled device identifier turns on or keeps an infrared response function on, and determines the controlled device When the identifier and the first device identifier are the same device identifier, the infrared response function of the electronic device is turned on or kept on; correspondingly, the processing module 602 is further configured to determine the first according to the first infrared control signal. The infrared control signal is a control signal for indicating that the controlled device identified by the controlled device identifier turns on or keeps the infrared response function on, and determines that the controlled device identifier and the first device identifier are not the same device identifier. Turning off the infrared response function of the electronic device.

It will be clearly understood by those skilled in the art that for the convenience and brevity of the description, only the division of each functional unit described above is exemplified. In practical applications, the above function assignment can be completed by different functional units as needed. The internal structure of the device is divided into different functional units to perform all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit or unit is only a logical function division, and may be implemented in actual implementation. In a different manner, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above embodiments are only used to describe the technical solutions of the present application in detail, but the description of the above embodiments is only for helping to understand the method and the core idea of the present invention, and should not be construed as limiting the present invention. Those skilled in the art will be able to devise variations or alternatives within the scope of the present invention within the scope of the present invention.

Claims

A signal transmission method, comprising the steps of:

The first controlled electronic device obtains a first infrared control signal, where the first infrared control signal carries a controlled device identifier;

The first controlled electronic device parses the first infrared control signal, and determines whether the controlled device identifier and the first device identifier of the first controlled electronic device are the same device identifier;

When the controlled device identifier is not the same device identifier as the first device identifier, the first controlled electronic device transmits the first infrared control signal to the second controlled electronic device.
The method of claim 1, after determining whether the controlled device identifier and the first device identifier of the first controlled electronic device are the same device identifier, further comprising: when the controlled When the device identifier and the first device identifier are the same device identifier, the first controlled electronic device responds to the first infrared control signal.
The method of claim 1, wherein the first controlled electronic device obtains the first infrared control signal, comprising: the first controlled electronic device is obtained by an infrared receiving end of the first controlled electronic device The first infrared control signal, or the first controlled electronic device obtains the first infrared control signal through a serial input interface of the first controlled electronic device.
The method of any one of claims 1-3, wherein the transmitting, by the first controlled electronic device, the first infrared control signal to the second controlled electronic device comprises:

The first controlled electronic device performs amplification processing on the first infrared control signal;

The first controlled electronic device transmits the amplified first infrared control signal to the second controlled electronic device through a serial output interface of the first controlled electronic device.
The method according to claim 1, 3 or 4, wherein the method further comprises: the first controlled electronic device determining that the first infrared control signal is used according to the first infrared control signal And a control signal indicating that the controlled device identified by the controlled device identifier turns on or maintains the infrared response function, and determines that the controlled device identifier is not the same device as the first device identifier of the first controlled electronic device When marking, the infrared response function of the first controlled electronic device is turned off.
The method of claim 5, further comprising: after the first controlled electronic device turns off the infrared response function of the first controlled electronic device,

The first controlled electronic device receives a second infrared control signal;

The first controlled electronic device transmits the second infrared control signal to the second controlled electronic device through a serial output interface of the first controlled electronic device.
An electronic device, comprising:

An acquiring module, configured to obtain a first infrared control signal, where the first infrared control signal carries a controlled device identifier;

a processing module, configured to parse the first infrared control signal, and determine whether the controlled device identifier and the first device identifier of the first controlled electronic device are the same device identifier;

And an output module, configured to: when the controlled device identifier and the first device identifier are not the same device identifier, transmit the first infrared control signal to the second controlled electronic device.
The electronic device according to claim 7, wherein the processing module is further configured to: respond to the first infrared control signal when the controlled device identifier and the first device identifier are the same device identifier .
The electronic device according to claim 7, wherein the obtaining module is specifically configured to: obtain the first infrared control signal by an infrared receiving end of the electronic device, or serial input through the electronic device The interface obtains the first infrared control signal.
The electronic device according to any one of claims 7-9, wherein the output module is specifically configured to: perform amplification processing on the first infrared control signal; and pass the amplified first infrared control signal through the The serial output interface of the electronic device is transmitted to the second controlled electronic device.
The electronic device according to any one of claims 7, 9 or 10, wherein the processing module is further configured to: turn off an infrared response function of the first controlled electronic device.
The electronic device according to claim 7, wherein the obtaining module is further configured to receive a second infrared control signal;

The output module is further configured to transmit to the second through a serial output interface of the electronic device Controlled electronic equipment.
A control system, comprising:

At least two controlled electronic devices, wherein each controlled electronic device has a serial input interface and a serial output interface, and each controlled electronic device is sequentially connected through a serial input interface and a serial output interface;

An infrared remote controller for controlling one of the controlled electronic devices or controlling any of the remaining controlled electronic devices by the controlled electronic device.
The control system of claim 13 wherein said serial input interface has M pins, M being a positive integer, at least one of which is for transmitting an infrared control signal; and said serial The output interface has N pins, N is a positive integer, and at least one of the pins is used to transmit an infrared control signal.
The control system according to claim 13 or 14, wherein a serial output interface of the first controlled electronic device of the at least two controlled electronic devices and the at least two controlled electronic devices The serial input interface of the second controlled electronic device is connected;

The infrared remote controller is configured to send a first infrared control signal to the first controlled electronic device, where the first infrared control signal carries a controlled device identifier;

The first controlled electronic device is configured to obtain the first infrared control signal by using an infrared receiving end of the first controlled electronic device, parse the first infrared control signal, and determine the controlled device Determining whether the first device identifier of the first controlled electronic device is the same device identifier, and when the controlled device identifier and the first device identifier are not the same device identifier, passing the first controlled electronic device The serial output interface transmits the first infrared control signal to the second controlled electronic device, and when the controlled device identifier and the first device identifier are the same device identifier, responding to the first infrared control signal;

The second controlled electronic device is configured to obtain, by using a serial input interface of the second controlled electronic device, that the first controlled electronic device determines that the controlled device identifier and the first device identifier are not The first infrared control signal sent when the same device is identified, and the first infrared control signal is input Determining, determining whether the controlled device identifier and the second device identifier of the second controlled electronic device are the same device identifier, and when the controlled device identifier and the second device identifier are not the same device identifier, and When there is a third controlled electronic device connected to the serial output interface of the second controlled electronic device, transmitting the first infrared control signal to the serial output interface of the second controlled electronic device The third controlled electronic device responds to the first infrared control signal when the controlled device identifier and the second device identifier are the same device identifier.
A signal transmission method is characterized in that the signal transmission method is applied to a first controlled electronic device, and a serial output interface of the first controlled electronic device is connected to a serial input interface of a second controlled electronic device ,include:

The first controlled electronic device obtains a first infrared control signal, where the first infrared control signal carries a controlled device identifier;

Transmitting, by the first controlled electronic device, the first infrared control signal to the second controlled electronic device by using a serial output interface of the first controlled electronic device;

The first controlled electronic device parses the first infrared control signal to obtain the controlled device identifier, and determines that the controlled device identifier and the first device identifier of the first controlled electronic device are The first infrared control signal is responsive to the same device identification.
The method according to claim 16, wherein the first controlled electronic device obtains the first infrared control signal, comprising: the first controlled electronic device passes through the first controlled electronic device The infrared receiving end obtains the first infrared control signal, or the first controlled electronic device obtains the first infrared control signal by using a serial input interface of the first controlled electronic device.
The method of claim 16 or 17, wherein the transmitting, by the first controlled electronic device, the first infrared control signal to the second controlled electronic device comprises:

The first controlled electronic device performs amplification processing on the first infrared control signal;

The first controlled electronic device transmits the amplified first infrared control signal to the second controlled electronic device through a serial output interface of the first controlled electronic device.
A method according to any one of claims 16-18, wherein said determining said said When the control device identifier and the first device identifier of the first controlled electronic device are the same device identifier, the responding to the first infrared control signal specifically includes: determining the first infrared control according to the first infrared control signal The signal is a control signal for indicating that the controlled device identified by the controlled device identifier turns on or maintains the infrared response function, and determines that the controlled device identifier and the first device identifier are the same device identifier, and is Or maintaining the infrared response function of the first controlled electronic device;

The method further includes: the first controlled electronic device determines, according to the first infrared control signal, that the first infrared control signal is turned on or off for indicating a controlled device identified by the controlled device identifier Turning on the control signal of the infrared response function, and determining that the controlled device identifier and the first device identifier are not the same device identifier, turning off the infrared response function of the first controlled electronic device.
An electronic device, wherein a serial output interface of the electronic device is connected to a serial input interface of an adjacent electronic device, the electronic device comprising an acquisition module, a processing module, and an output module;

The acquiring module is configured to obtain a first infrared control signal, where the first infrared control signal carries a controlled device identifier;

The processing module is configured to parse the first infrared control signal to obtain the identifier of the controlled device, and determine that the identifier of the controlled device and the first device identifier of the electronic device are the same device identifier, Responding to the first infrared control signal;

The output module is configured to transmit the first infrared control signal to the adjacent electronic device through a serial output interface of the electronic device.
The electronic device according to claim 20, wherein the obtaining module is specifically configured to: obtain the first infrared control signal through an infrared receiving end of the electronic device, or pass serial input of the electronic device The interface obtains the first infrared control signal.
The electronic device according to claim 20 or 21, wherein the output module is specifically configured to: perform amplification processing on the first infrared control signal; and pass the amplified first infrared control signal through the electronic device The serial output interface is transmitted to the adjacent electronic device.
The electronic device according to any one of claims 20-22, wherein said processing module In response to determining that the controlled device identifier and the first device identifier of the electronic device are the same device identifier, the responding to the first infrared control signal specifically includes: the processing module is configured to be used according to the first infrared The control signal determines that the first infrared control signal is a control signal for indicating that the controlled device identified by the controlled device identifier turns on or keeps an infrared response function on, and determines the controlled device identifier and the first When the device identifier is the same device identifier, the infrared response function of the electronic device is turned on or kept on;

The processing module is further configured to: determine, according to the first infrared control signal, that the first infrared control signal is a control for instructing the controlled device identified by the controlled device identifier to turn on or maintain an infrared response function And when the signal is determined, and the determined device identifier is not the same device identifier as the first device identifier, the infrared response function of the electronic device is turned off.
A control system, comprising:

At least two controlled electronic devices, wherein each controlled electronic device has a serial input interface and a serial output interface, and each controlled electronic device is sequentially connected through a serial input interface and a serial output interface;

An infrared remote controller, configured to send a first infrared control signal to the first controlled electronic device of the at least two controlled electronic devices, where the first infrared control signal carries a controlled device identifier;

The first controlled electronic device is configured to obtain the first infrared control signal by using an infrared receiving end of the first controlled electronic device, by using a serial output interface of the first controlled electronic device Transmitting, by the first infrared control signal, a second controlled electronic device connected to the first controlled electronic device of the at least two controlled electronic devices, and determining the controlled device identifier and the first And responding to the first infrared control signal when the first device identifier of the controlled electronic device is the same device identifier;

The second controlled electronic device is configured to obtain the first infrared control signal by using a serial input interface of the second controlled electronic device; and for when the at least two controlled electronic devices include the Transmitting the first infrared control signal to the third through a serial output interface of the second controlled electronic device when the serial output interface of the second controlled electronic device is connected to the third controlled electronic device The controlled electronic device is further configured to: when the controlled device identifier and the second device identifier are the same device identifier Responding to the first infrared control signal.