CN102110353B - Remote control radio-frequency signal emission controlling method and device and automobile remote control system - Google Patents
Remote control radio-frequency signal emission controlling method and device and automobile remote control system Download PDFInfo
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- CN102110353B CN102110353B CN 200910239067 CN200910239067A CN102110353B CN 102110353 B CN102110353 B CN 102110353B CN 200910239067 CN200910239067 CN 200910239067 CN 200910239067 A CN200910239067 A CN 200910239067A CN 102110353 B CN102110353 B CN 102110353B
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Abstract
The invention is suitable for the field of remote control, and provides a remote control radio-frequency signal emission controlling method, a remote control radio-frequency signal emission controlling device and an automobile remote control system. The method comprises the following steps of: allocating the time interval between the adjacent two-time emission of remote control radio-frequency signals; and controlling discontinuous emission of the remote control radio-frequency signals according to the time interval and the timing of a timer. In the invention, the remote control radio-frequency signals are emitted discontinuously, so that the time of signal emission is reduced, the occurrence probability of signal interference events at the same frequency is reduced while the function of the system is ensured, the problem that remote control operation fails because vehicle-mounted base station equipment makes mistakes during the receiving of remote control signals due to signal interference when a plurality of portable remote control devices simultaneously emit the remote control radio-frequency signals at the same frequency is solved, and the induction entering and one-key starting operation failure of an intelligent key system due to signal interference at the same frequency can be prevented.
Description
Technical field
The invention belongs to field of remote control, relate in particular to a kind of remote radio frequency signal emission control method, device and automobile remote-control system.
Background technology
The technology that automobile burglar adopts mainly contains three kinds, and the first is the engine anti-theft technology that starts from the beginning of the nineties, and the most general in America and Europe's use, Countries even is equipped with engine anti-theft by national legislation mandatory requirement automobile; The second is the remote-control anti-theft technology that starts from the end of the nineties, can realize Remote Control Vehicle in the scope of tens meters, for the user has brought certain facility; The third is the intelligent key system that starts from the beginning of this century, this technology not only has advantage and the function of front two kinds of anti-theft techniques, also possess induction and enter and a key start-up performance, changed dramatically the custom that the user uses vehicle, bring great advantage to the user.At present, most of vehicle adopts the remote-control anti-theft technology, the perhaps mode of remote-control anti-theft technology and the combination of engine anti-theft technology, and what the medium-to-high grade vehicle of part was equipped with is the intelligent key system technology, so most vehicle all is equipped with the long-distance remote control function.
The long-distance remote control function mainly realizes by the automobile remote-control technology, as shown in Figure 1, portable remote control device is initiatively launched the remote radio frequency signal of characteristic frequency to cell on wheels equipment, the remote radio frequency signal contains the information such as the identification code, random number, straighforward operation of portable remote control device, and cell on wheels equipment receives and is transmitted to relevant controller after the remote radio frequency signal and processes and carry out corresponding operating.When the button on portable remote control device is pressed, microcontroller in portable remote control device detects this button and presses, and trigger HF transmitter and launch uninterruptedly the remote radio frequency signal, after button unclamps, microcontroller triggers HF transmitter and stops launching the remote radio frequency signal, if the button time of pressing surpasses predefined binding hours, microcontroller also controller HF transmitter stops launching the remote radio frequency signal.
Because automobile remote-control uses 315M and two frequencies of 433M, and operating distance is as long as fifty meters even 100 meters, and what use at home is mainly the 315M frequency, so there is problem of co-channel interference in the automobile remote-control technology, the most obvious in the place that the vehicles such as parking lot are intensive.When two portable remote control devices during simultaneously at the same frequency remote radio frequency signal of emission, thereby make mistakes in the time of can causing each other the signal interference to cause cell on wheels equipment to receive remote signal, finally cause the straighforward operation failure, for intelligent key system, homogenous frequency signal disturbs and also may cause induction to enter and a key start-up operation failure.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of remote radio frequency signal emission control method, is intended to solve the problem of co-channel interference that in existing automobile remote-control technology, radiofrequency signal exists.
The embodiment of the present invention is achieved in that a kind of remote radio frequency signal emission control method, and described method comprises the steps:
Configure the time interval between adjacent twice remote radio frequency signal emission;
According to the described time interval and timer timing, control the emission of remote radio frequency signal discontinuity.
Wherein, described step according to the described time interval and the emission of timer timing controlled remote radio frequency signal discontinuity is specially:
The remote controller key signal detected;
Function timing starts first timer;
Trigger the HF transmitter emission remote radio frequency signal corresponding with described remote controller key signal;
After the emission of single remote radio frequency signal is completed, detect remote controller key and whether stop, stopping as remote controller key, the zero clearing first timer also finishes;
As detect remote controller key and do not stop, judging whether the remote controller key operation is overtime, be this remote controller key operation of make-up shielding, the zero clearing first timer also finishes;
Otherwise the time interval setting Transmission Time Interval according to configuration starts second timer;
The second timer timing time detected then, trigger the HF transmitter emission remote radio frequency signal corresponding with described remote controller key signal;
The circulation said process stops until remote controller key being detected, stops launching the remote radio frequency signal.
Another purpose of the embodiment of the present invention is to provide a kind of telechiric device, it is characterized in that, described device comprises:
Remote keying is used for receiving the telecommand that the user inputs;
HF transmitter is used for emission remote radio frequency signal;
First timer and second timer are used for the timing of configuration remote radio frequency signal emission;
The transmission interval dispensing unit is used for configuring the time interval between adjacent twice remote radio frequency signal emission;
Emission controlling unit, for detection of the state of described remote keying, according to the time interval of described transmission interval dispensing unit configuration, and the timing of described first timer and second timer, trigger described HF transmitter discontinuity emission remote radio frequency signal;
Wherein, described emission controlling unit comprises:
Whether the push button signalling detection module is used for starting first timer when the remote controller key signal being detected, after the emission of single remote radio frequency signal is completed, detect remote controller key and stop, and stops the described first timer of zero clearing as remote controller key;
The button shroud module, be used for when described push button signalling detection module detects remote controller key and do not stop, judge whether the remote controller key operation is overtime, when the remote controller key operation overtime, shield this remote controller key, the described first timer of zero clearing after the button that conductively-closed detected unclamps, is cancelled the shielding to described button; And
The emission of radio frequency signals control module, be used for when described button shroud module judgement button operation is not overtime, Transmission Time Interval according to described transmission interval dispensing unit configuration, starting the second timer timing waits for, after timing time arrives, trigger the described HF transmitter repeat its transmission remote radio frequency signal corresponding with remote keying.
Another purpose of the embodiment of the present invention is to provide a kind of automobile remote-control system that adopts above-mentioned telechiric device.
The embodiment of the present invention is launched the remote radio frequency signal by interruption, reduce the time of signal emission, reduce the probability of the generation of homogenous frequency signal interference incident when guaranteeing systemic-function, avoided a plurality of portable remote control devices simultaneously when the same frequency remote radio frequency signal of emission, because disturbing, signal cause cell on wheels equipment reception remote signal to be made mistakes, make the problem of straighforward operation failure, and the induction of avoiding intelligent key system cause because homogenous frequency signal disturbs enters the problem with a key start-up operation failure.
Description of drawings
Fig. 1 is the structure of the automobile remote-control system that provides of prior art;
Fig. 2 is the emission cycle schematic diagram of remote radio frequency signal behind the joining day interval between adjacent twice signal of providing of the embodiment of the present invention;
Fig. 3 is interrupted the interference schematic diagram of remote radio frequency signal and homogenous frequency signal in the embodiment of the present invention;
Fig. 4 is the realization flow figure of the remote radio frequency signal emission control method that provides of the embodiment of the present invention;
Fig. 5 is the structural drawing of the telechiric device that provides of the embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
In embodiments of the present invention, by increasing the time interval between adjacent twice emitting, according to timer regularly, the remote radio frequency signal of uninterrupted emission is continuously become the remote radio frequency signal of continuous interruption emission, reduce the time of signal emission, reduce the probability of happening that homogenous frequency signal disturbs when guaranteeing systemic-function.
In the time interval between the adjacent twice remote radio frequency signal emission of embodiment of the present invention configuration, according to the time interval and the timer timing of configuration, control the emission of remote radio frequency signal discontinuity.
As shown in Figure 2, when behind joining day interval between adjacent twice signal, T=t cycle length of single remote radio frequency signal emission
on+ t
off
As shown in Figure 3, appear at t when the identical signal of another one form
SafeIn the time of in the zone, co-channel interference not occuring between two string signals, appears at t and work as the identical signal of another one form
SafeIn the time of outside the zone, between two string signals, co-channel interference can occur.
Suppose that homogenous frequency signal exists always and occur at random, two signals probability that co-channel interference do not occur is
As seen, t
offLarger, the probability that co-channel interference occurs is just less, but too large t
offCan cause user's the operation awaits time oversize.Therefore, in embodiments of the present invention, with the time interval t between twice signal emission
offSpan is configured to single remote radio frequency signal emission duration t
on3 times to 10 times between, can guarantee that the possibility that will produce the signal co-channel interference is reduced between 50% and 80%.
Fig. 4 shows the realization flow of the remote radio frequency signal emission control method that the embodiment of the present invention provides, and details are as follows:
In step S401, the remote controller key signal detected;
In step S402, function timing starts first timer;
In step S403, trigger the remote radio frequency signal of HF transmitter emission and remote controller key operational correspondence;
In step S404, the emission of single remote radio frequency signal is completed;
In step S405, detect remote controller key and whether stop, be execution in step S411, otherwise execution in step S406;
In step S406, the timing by first timer judges whether button operation is overtime, is execution in step S410, otherwise execution in step S407;
In step S407, set Transmission Time Interval;
In embodiments of the present invention, the time interval between the emission of twice signal is configured to guarantee that the possibility that will produce the signal co-channel interference is reduced between 50% and 80% between 3 times to 10 times of single remote radio frequency signal emission duration.
In step S408, start the second timer timing;
In step S409, detect the timing time of second timer then, execution in step S403;
In step S410, this button of make-up shielding;
In step S411, zero clearing first timer, end process.
Fig. 5 shows the structure of the telechiric device that the embodiment of the present invention provides, and for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
This telechiric device can be applied in various automobile remote-control systems, comprises remote keying 2, HF transmitter 3, first timer 4, second timer 5, emission controlling unit 6 and transmission interval dispensing unit 7, wherein:
HF transmitter 3 emission remote radio frequency signals.
The timing of first timer 4 and second timer 5 configuration remote radio frequency signal emissions.
The time interval between the 7 adjacent twice remote radio frequency signal emissions of configuration of transmission interval dispensing unit.
As one embodiment of the present of invention, push button signalling detection module 61 detects the push button signalling that remote keying 2 is sent, when the push button signalling that button presses is arranged, start first timer 4, emission of radio frequency signals control module 63 triggers the HF transmitter 3 emission remote radio frequency signals corresponding with remote keying.After single remote radio frequency signal was sent completely, whether push button signalling detection module 61 detects buttons stopped, and stopped zero clearing first timer, end signal emission as button.
If button also is in down state, button shroud module 62 judge by the timing of first timer 4 whether button operation is overtime, if operation overtime, this button of make-up shielding, and with first timer 4 zero clearings, end signal is launched.After the button that conductively-closed detected unclamps, cancel the shielding to this button.
If button operation is not overtime, the Transmission Time Interval that emission of radio frequency signals control module 63 is controlled according to 7 configurations of transmission interval dispensing unit, start second timer 5 timing and wait for, timing time triggers the HF transmitter 4 repeat its transmission remote radio frequency signal corresponding with remote keying to rear remote signal emission control module 63.
The embodiment of the present invention is launched the remote radio frequency signal by interruption, reduce the time of signal emission, reduce homogenous frequency signal and disturb the probability that occurs when guaranteeing systemic-function, avoided a plurality of portable remote control devices simultaneously when the same frequency remote radio frequency signal of emission, make mistakes when causing cell on wheels equipment to receive remote signal because of the signal interference, make the problem of straighforward operation failure, and avoid intelligent key system to enter and a key start-up operation failure because homogenous frequency signal disturbs the induction that causes.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a remote radio frequency signal emission control method, is characterized in that, described method comprises the steps:
Configure the time interval between adjacent twice remote radio frequency signal emission;
According to the described time interval and timer timing, control the emission of remote radio frequency signal discontinuity;
Wherein, described step according to the described time interval and the emission of timer timing controlled remote radio frequency signal discontinuity is specially:
The remote controller key signal detected;
Function timing starts first timer;
Trigger the HF transmitter emission remote radio frequency signal corresponding with described remote controller key signal;
After the emission of single remote radio frequency signal is completed, detect remote controller key and whether stop, stopping as remote controller key, the zero clearing first timer also finishes;
As detect remote controller key and do not stop, judging whether the remote controller key operation is overtime, be this remote controller key operation of make-up shielding, the zero clearing first timer also finishes;
Otherwise the time interval setting Transmission Time Interval according to configuration starts second timer;
The second timer timing time detected then, trigger the HF transmitter emission remote radio frequency signal corresponding with described remote controller key signal;
The circulation said process stops until remote controller key being detected, stops launching the remote radio frequency signal.
2. the method for claim 1, is characterized in that, the described time interval is set between 3 to 10 times of single remote radio frequency signal emission duration.
3. a telechiric device, is characterized in that, described device comprises:
Remote keying is used for receiving the telecommand that the user inputs;
HF transmitter is used for emission remote radio frequency signal;
First timer and second timer are used for the timing of configuration remote radio frequency signal emission;
The transmission interval dispensing unit is used for configuring the time interval between adjacent twice remote radio frequency signal emission;
Emission controlling unit, for detection of the state of described remote keying, according to the time interval of described transmission interval dispensing unit configuration, and the timing of described first timer and second timer, trigger described HF transmitter discontinuity emission remote radio frequency signal;
Wherein, described emission controlling unit comprises:
Whether the push button signalling detection module is used for starting first timer when the remote controller key signal being detected, after the emission of single remote radio frequency signal is completed, detect remote controller key and stop, and stops the described first timer of zero clearing as remote controller key;
The button shroud module, be used for when described push button signalling detection module detects remote controller key and do not stop, judge whether the remote controller key operation is overtime, when the remote controller key operation overtime, shield this remote controller key, the described first timer of zero clearing after the button that conductively-closed detected unclamps, is cancelled the shielding to described button; And
The emission of radio frequency signals control module, be used for when described button shroud module judgement button operation is not overtime, Transmission Time Interval according to described transmission interval dispensing unit configuration, starting the second timer timing waits for, after timing time arrives, trigger the described HF transmitter repeat its transmission remote radio frequency signal corresponding with remote keying.
4. device as claimed in claim 3, is characterized in that, the described time interval is set between 3 to 10 times of single remote radio frequency signal emission duration.
5. automobile remote-control system that adopts the telechiric device of claim 3 or 4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910239067 CN102110353B (en) | 2009-12-28 | 2009-12-28 | Remote control radio-frequency signal emission controlling method and device and automobile remote control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910239067 CN102110353B (en) | 2009-12-28 | 2009-12-28 | Remote control radio-frequency signal emission controlling method and device and automobile remote control system |
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| CN102110353A CN102110353A (en) | 2011-06-29 |
| CN102110353B true CN102110353B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910239067 Expired - Fee Related CN102110353B (en) | 2009-12-28 | 2009-12-28 | Remote control radio-frequency signal emission controlling method and device and automobile remote control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103010160B (en) * | 2013-01-18 | 2015-08-26 | 北京汽车股份有限公司 | A kind of car load theft preventing method, system and vehicle |
| CN111028394B (en) * | 2019-12-24 | 2021-06-25 | 东风电子科技股份有限公司 | Processing method for realizing operation of multiple automobile remote control keys |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4914428A (en) * | 1986-05-30 | 1990-04-03 | Mitsubishi Denki Kaushiki | Digital remote control transmission apparatus |
| CN2466738Y (en) * | 2000-08-28 | 2001-12-19 | 大洋玩具工业股份有限公司 | Multigroup infrared remote controlling device |
-
2009
- 2009-12-28 CN CN 200910239067 patent/CN102110353B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4914428A (en) * | 1986-05-30 | 1990-04-03 | Mitsubishi Denki Kaushiki | Digital remote control transmission apparatus |
| CN2466738Y (en) * | 2000-08-28 | 2001-12-19 | 大洋玩具工业股份有限公司 | Multigroup infrared remote controlling device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8－340587A 1996.12.24 |
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