WO2015074376A1

WO2015074376A1 - Wireless self-powered step counting shoe, step counting system and step counting method

Info

Publication number: WO2015074376A1
Application number: PCT/CN2014/075621
Authority: WO
Inventors: 程驰; 刘永生; 马志海; 邱霄; 孙晓雅; 王小雄; 罗杰斯⋅亚瑟; 巴里斯⋅尤里斯; 吴振海; 段先胜; 吴宝荣
Original assignee: 纳米新能源（唐山）有限责任公司
Priority date: 2013-11-22
Filing date: 2014-04-17
Publication date: 2015-05-28
Also published as: CN104643370B; CN104643370A

Abstract

A wireless self-powered step counting shoe, a step counting system and a step counting method. The step counting shoe comprises a shoe body, wherein the shoe body further comprises at least one friction electric generator (11) for converting mechanical energy into electric energy, an energy storage module (12) connected with at least one friction electric generator (11) and storing the electric energy produced by the friction electric generator (11), a switch module (13) connected with the energy storage module (12) and outputting the electric energy when the electric energy stored in the energy storage module (12) is detected to be more than or equal to a preset threshold, a processing module (14) connected with the switch module (13) and taking the times of outputting electric energy of the switch module (13) as step counting data and storing the data, and a wireless communication module (15) connected with the processing module (14) and used for receiving the step counting data from the processing module (14) and sending the step counting data to a terminal device (20).

Description

Wireless self-powered counting shoe, counting system and counting method

Technical field

The present invention relates to the field of electronic circuit technologies, and in particular, to a wireless self-powered walking shoe, a step counting system, and a step counting method. Background technique

With the continuous development of society, people pay more and more attention to physical health, and pedometers have become a necessity for people to exercise their bodies. Usually, the pedometer can not only display the number of movement steps, but also further calculate the movement distance, heat consumption and other motion data, so that the user can adjust the exercise intensity according to the demand to achieve better results.

There are various pedometers in the prior art, for example, a pedometer based on a vibration sensor or an accelerometer, or a pedometer that implements a step function by a step counter software using a gravity sensing function of a mobile device such as a mobile phone. The above existing pedometers are generally powered by a battery or an external rechargeable power source. Once the power is exhausted, the step counting function is interrupted, which brings great inconvenience to the user. In addition, for the pedometer mounted on the shoe body, the display of the motion data is usually set on the shoe body, which is not conducive to the user's observation, and the pedometer for stepping with the software on the mobile device, accuracy and Reliability is not high. Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a wireless self-powered step-by-step shoe, a step counter system, and a step counting method, which are capable of accurately and reliably implementing the step counting function without relying on an external power source.

The wireless self-powered walking shoe provided by the present invention comprises: a shoe body, the shoe body further comprising: at least one friction generator for converting mechanical energy into electrical energy; an energy storage module, connected to the at least one friction generator, generating the friction generator The power module is stored; the switch module is connected to the energy storage module, and outputs power when detecting that the energy stored in the energy storage module is greater than or equal to a preset threshold; the processing module is connected to the switch module, and the number of times the switch module outputs power The wireless communication module is connected to the processing module, and receives the step data from the processing module and sends the step data to the terminal device, so that the terminal device calculates the motion data according to the step data and displays the data.

The wireless self-powered step counting system provided by the present invention, including the wireless self-powered walking shoe, further includes: a terminal device, wirelessly providing power to the wireless communication module in the stepping shoe, and receiving the meter sent by the wireless communication module Step data, calculating motion data according to the step data and displaying; The end device is further configured to calculate, according to the step data and the pre-recorded steps, a calibration step required for the switch module to output primary energy, and pre-store the calibration step.

The invention provides a wireless self-powered step counting method, comprising: at least one friction generator converts mechanical energy into electrical energy; storing electrical energy generated by at least one friction generator in an energy storage module; detecting electrical energy stored in the energy storage module When the electric energy is greater than or equal to the preset threshold, the electric energy is output from the energy storage module; the electric energy output times are recorded and the electric energy output times are used as the step data; the step data is transmitted to the wireless communication module; the wireless communication module is wirelessly Sending the step data to the terminal device; the terminal device receives the step data and calculates the motion data according to the step data.

The wireless self-powered walking shoe, the step counting system and the step counting method provided by the invention provide power supply by using a friction generator, and the user can generate electric energy for power supply by pressing and rubbing the friction generator. Not only does it save the trouble of replacing the battery after it is dead, but it also solves the problem that the battery cannot be powered after it is used up. This self-powered mode replaces the existing battery power supply, which greatly saves resources and protects the environment. Moreover, the system completes the step according to the electrical energy generated by the friction generator, accurately reflecting the user's motion; The user's exercise data is calculated and displayed, so that the user can accurately understand the physical condition and improve the user experience. Moreover, the wireless self-powered step counting system provided by the invention is small in size and light in weight, and the friction generator and related modules can be arranged inside the step counting shoes, which is convenient to carry and brings great convenience to the user. BRIEF abstract

1 is a schematic view showing the overall structure of a wireless self-powered walking shoe provided by the present invention; FIG. 2 is a block diagram showing the circuit principle of an embodiment of a wireless self-powered walking shoe provided by the present invention;

3 is a block diagram showing the circuit principle of an energy storage module of a wireless self-powered walking shoe provided by the present invention;

4 is a circuit block diagram showing another embodiment of a wireless self-powered walking shoe provided by the present invention;

5 is a flow chart showing a wireless self-powered step counting method according to an embodiment of the present invention; and FIGS. 6a and 6b are respectively a perspective structural view and a cross-sectional structural view showing a first structure of the friction generator;

7a and 7b are respectively a perspective structural view and a cross-sectional structural view showing a second structure of the friction generator;

8a and 8b respectively show a three-dimensional structure diagram of a third structure of a friction generator and Schematic diagram of the section structure;

Fig. 9a and Fig. 9b respectively show a perspective structural view and a sectional structural view of a fourth structure of the friction generator. Preferred embodiment of the invention

The present invention will be described in detail by the following detailed description of the preferred embodiments of the invention, but the invention is not limited thereto.

FIG. 1 is a schematic view showing the overall structure of a wireless self-powered walking shoe provided by the present invention. The wireless self-powered walking shoe includes a shoe body that is self-powered by a friction generator disposed inside the shoe body. The friction generator is usually located at the bottom of the shoe, but not limited to the bottom of the shoe, but can be placed at other locations; the shoe body also includes other circuit components such as an energy storage module that can be placed in the sole and/or upper. For example, in Fig. 1, a friction generator is disposed at a sole position (not shown), and a circuit assembly 2 is disposed inside the upper.

Figure 2 is a block diagram showing the circuit principle of one embodiment of a wireless self-powered walking shoe provided by the present invention. As shown in FIG. 2, the stepping shoes include: a friction generator 11, an energy storage module 12, a switch module 13, a processing module 14, and a wireless communication module 15. The friction generator 11 converts mechanical energy into electrical energy; the energy storage module 12 is connected to the output end of the friction generator 11 to store the electric energy generated by the friction generator 11; the output end of the energy storage module 12 is connected to the switch module 13, the switch The module 13 is configured to detect the electrical energy stored in the energy storage module 12. When the stored electrical energy is greater than or equal to a preset threshold, the switch module 13 is turned on to output electrical energy to supply power to the processing module 14. The processing module 14 uses the number of times that the switch module 13 outputs power as the step data and stores it; the processing module 14 transmits the stored step data to the wireless communication module 15, and the wireless communication module 15 transmits the data to the terminal device 20 for the terminal. The device 20 calculates motion data based on the step data and displays it.

In this embodiment, after the end of the step counting, the processing module 14 receives the wirelessly provided power of the terminal device 20, and the processing module 14 uses the electrical energy to transmit the step data to the wireless communication module 15; meanwhile, the wireless communication module 15 also The wireless power provided by the terminal device 20 is received, and the step data is received by the power and transmitted to the terminal device 20 in a wireless manner.

The specific structure and working process of each module in the stepping shoe are specifically described below.

When the user wears the stepping shoes, the friction generator disposed in the shoe body is subjected to the pressing force to generate mechanical deformation, and converts the mechanical energy of the movement into electric energy. According to actual needs, the number of friction generators may be multiple, and multiple friction generators are arranged in a stacked manner and/or tiling manner inside the stepping shoes, and a plurality of friction generators are connected in series and/or in parallel. Connect to ensure the power supply requirements of the paced shoes. When the user moves, each step gives different pressure to the friction generator of the sole. The friction generator produces different degrees of mechanical deformation, and the amplitude and frequency of the generated alternating current are uncertain. This kind of alternating current is not suitable for direct storage. Therefore, the energy storage module needs to perform necessary processing on the output power of the friction generator to facilitate storage.

FIG. 3 is a circuit block diagram showing the connection between the energy storage module 12 of the wireless self-powered walking shoe and the friction generator 11 provided by the present invention. The energy storage module 12 includes: a rectifier circuit 51, a filter circuit 52 and an energy storage component 54. The rectifier circuit 51 is connected to the output of the at least one friction generator 11 to rectify the electrical signals output by the at least one friction generator 11. Specifically, the two input terminals 51A and 51B of the rectifier circuit 51 are respectively connected to the two output terminals of the friction generator 11, and receive the electric signal output from the friction generator 11. For a structure comprising a plurality of friction generators, the two outputs of the plurality of friction generators are connected in parallel and/or in series and then connected to the two input terminals 51A and 51B of the rectifier circuit 51.

The two output terminals 51C and 51D of the rectifier circuit 51 are connected to the filter circuit 52, and the rectifier circuit 51 outputs a unidirectional pulsating direct current obtained by rectifying the electric signal output from the friction generator 11 to the filter circuit 52. The filter circuit 52 is connected to the energy storage element 54, and the filter circuit 52 filters the unidirectional pulsating direct current output from the rectifier circuit 51 to obtain a direct current signal to be output to the energy storage element 54.

As shown in Fig. 3, the filter circuit 52 has two terminals. Specifically, the first terminal 52A of the filter circuit 52 is connected to the output terminal 51D of the rectifier circuit 51, and the second terminal 52B of the filter circuit 52 is connected to the output terminal 51C of the rectifier circuit 51. The first end 52A of the filter circuit 52 is coupled to the first end of the energy storage element 54, and the second end 52B of the filter circuit 52 is coupled to the second end of the energy storage element 54. In a practical application, the second terminal 52B of the filter circuit 52 is generally grounded.

For the circuit shown in Fig. 3, when an external force acts on the friction generator, the friction generator is mechanically deformed to generate an alternating pulse electrical signal. The alternating pulse electric signal is first input to the rectifying circuit 51, and is rectified by the rectifying circuit 51 to obtain a unidirectional pulsating direct current. The unidirectional pulsating direct current is input to the filter circuit 52 for filtering, and the interference clutter in the unidirectional pulsating direct current is filtered to obtain a direct current signal. Finally, the DC signal is directly input to the energy storage element 54 for storage. Wherein, the energy storage element 54 may be selected from the group consisting of a lithium battery, a nickel hydrogen battery, a super capacitor, and the like.

The switch module 13 detects the electrical energy stored by the energy storage component in the energy storage module 12. When the stored electrical energy is greater than or equal to a preset threshold, the switch module 13 is turned on to output electrical energy to supply power to the processing module 14. The switch module is a switch circuit, and those skilled in the art can flexibly select an existing switch circuit according to actual conditions. For example, in the energy storage module 12, if a supercapacitor is selected as the storage According to the charge voltage relationship C=Q/U of the supercapacitor, during the charging process of the supercapacitor, the electric quantity Q is continuously increased, and for the fixed capacitance value C, the terminal voltage of the super capacitor is correspondingly increased, and the switch module 13 is further increased. A voltage comparator may be included to compare the voltage value of the supercapacitor with a preset voltage threshold, the output of the voltage comparator being connected to the switching circuit, and when the output is high, the switching circuit is turned on. Since the switching frequency of the switch module in the system is low, a common comparator circuit can meet the requirements, such as the LM311. The switch circuit can also have various structures. For example, an NMOS can be used as a switch, and an output end of the voltage comparator is connected to the gate of the NMOS transistor, and the drain and the source are respectively connected to the output terminal of the energy storage component and the processing module. The power interface of 14 is connected, and the high level of the voltage comparator output turns on the NMOS transistor to supply power to the processing module 14.

In the present invention, the processing module 14 is constructed by a data processing circuit that takes the number of times the switching module outputs electrical energy as the step data and stores the step data, wherein the data processing circuit includes a central processing chip having calculation and processing functions. The present invention does not limit the type of the processing chip, and various programmable devices such as an MCU or an FPGA can be selected. Since the processing module 14 only acquires a small amount of power when the switch module 13 is turned on and when transmitting the step data to the wireless communication module 15, the central processing chip should preferably be a low power processing chip such as an MSP430 chip. Since the processing module 14 is in the power-off state when the switch module 13 is turned off, the processing module 14 can store the step data by using a non-volatile memory such as a flash memory or a separate flash memory chip.

As described above, in the present embodiment, the processing module 14 receives the wirelessly provided power of the terminal device 20 after the end of the step, and uses the power to transmit the stored step data to the wireless communication module 15. Therefore, the data processing circuit constituting the processing module 14 further includes a wireless power receiver, and the wireless power receiver may include: a receiving coil, a rectifier, a voltage regulation and a controller, or a wireless power receiving chip, such as TI's bq51013. Products, etc.

The wireless communication module 15 is composed of a wireless data transceiving circuit. Similar to the processing module 14, in the embodiment, the wireless data transceiver circuit also includes a wireless power receiver to receive the wirelessly provided power of the terminal device for data transmission and reception. The behavior of the processing module 14 and the wireless communication module 15 to receive electrical energy can be performed simultaneously, and the wireless communication module 15 can share the same wireless power receiver with the processing module 14, or a separate wireless power receiver.

The wireless data transceiver circuit in the wireless communication module 15 can select an NFC wireless communication circuit, an RFID wireless communication circuit, or a Bluetooth communication circuit according to the function support of a mobile terminal such as a conventional smart phone. Similar to the processing module 14, considering the power consumption cause and the transmission speed, an NFC wireless communication circuit that preferably has a low power consumption and a high bandwidth is supported.

In this embodiment, the working process of the step counting shoe is as follows: the user wears the stepping shoe movement, and applies pressure to the friction generator inside the shoe body, under the action of the pressure, the friction generator generates mechanical deformation, Converting part of the mechanical energy of the human body into electrical energy, and storing the generated electrical energy in the energy storage module, the electric energy output of the energy storage module is controlled by the switch module, and the switch module detects that the electric energy reaches the preset threshold and turns on, and supplies power to the processing module. The processing module uses the number of times the switch module outputs power as the step data and stores it. After the movement is completed, the user approaches the terminal device to the shoe body, and the wireless communication module and the processing module receive the wirelessly transmitted power of the terminal device, and the processing module transmits the stored step data to the wireless communication module by using the electrical energy, and the wireless communication module reuses the The electric energy sends the step data to the terminal device, so that the terminal device calculates and displays various motion data such as the number of movement steps, the movement distance and the calorie consumption in combination with the user data (including the calibration step number and the personal information about the user).

4 is a circuit block diagram showing another embodiment of a wireless self-powered pedometer shoe provided by the present invention. As shown in FIG. 4, in the present embodiment, the stepping shoe also includes a friction generator 11, an energy storage module 12, a switch module 13, a processing module 14, and a wireless communication module 15. The difference is that: in the working process of the stepping shoe of the embodiment, after the switch module 13 is turned on, the processing module 14 is supplied with electric energy, and the processing module 14 uses the electric energy output by the switch module 13 to count the number of times the switch module 13 outputs electric energy. At the same time, the processing module 14 provides power to the wireless communication module 15 to cause the processing module 14 to transmit the step data to the wireless communication module 15, and the wireless communication module 15 uses the portion of the power to receive and store the step data. For example, the processing module 14 is provided with a power line output port, and the power line of the wireless communication module 15 is connected to the output port. When the operating voltage is different, a level shifting circuit can be added thereto.

That is to say, unlike the previous embodiment, the data transmission operation of the processing module 14 to the wireless communication module 15 is completed when the switch module 13 is turned on during the step counting process. Therefore, only the wireless communication module 15 receives after the step counting ends. The terminal device wirelessly transfers the power to complete the transmission of data, and the processing module 14 does not need to receive the wireless power of the terminal device. Accordingly, there is no need to have a wireless power receiving circuit in the processing module 14.

The structure and working mode of the energy storage module 12 and the switch module 13 are the same as those of the previous embodiment, and are not described herein again.

The present invention also provides a wireless self-powered step counting system, including the wireless self-powered walking shoe described above, further comprising a terminal device, and the terminal device receives the step data sent by the wireless communication module in the stepping shoe, according to the meter The step data calculates the motion data and displays it. The terminal device may be a smart phone supporting NFC, RFID or Bluetooth function, and the corresponding application is installed. After the application obtains the step data, the mobile distance and the calorie consumption may be calculated according to the personal information such as the user's weight and the step size. Sports data.

The terminal device wirelessly provides power to the wireless communication module and receives the step data sent by the wireless communication module. In the first embodiment of the stepping shoe, the terminal device also wirelessly processes the module. The block provides power. Therefore, the terminal device further includes a wireless charging transmitter, and the wireless charging transmitter can select a plurality of wireless charging methods such as electromagnetic coupling and magnetic resonance in the prior art, for example, for the Qi standard charging mode and the transmitter accessory structure, wireless charging. The transmitter typically includes a unit of a driver, a transmitting coil, a controller, and the like.

In the use of the wireless self-powered step counter system, the power generated by different users stepping on the friction generator is different, that is, the number of steps required for different users to step on the friction generator to turn on the switch module is different, in order to improve the step Accuracy and reliability, when the user first uses the wireless self-powered step counter system, the calibration of the step data is required by the terminal device. The following takes the NFC mobile phone as an example to illustrate the calibration process:

Press the restart button of the stepping shoes before the exercise, open the app app on the NFC phone, select the calibration function, and enter the predetermined number of steps, for example, 100 steps;

After stopping 100 steps, the mobile phone is placed close to the stepping shoes, and the step counting data sent by the NFC wireless communication module in the shoe body is received, and the step counting data is the number of times the switch module is turned on, for example, 10 times;

The NFC mobile phone app combines the predetermined number of steps (100). It can be known that each step of opening the switch module requires 10 steps, and the value (10 steps) is used as the calibration step number and pre-stored.

In subsequent use, open the app's motion function, input personal information such as gender, height, weight, etc., and bring the NFC phone closer to the shoe body. The NFC phone receives the step data sent by the wireless communication module. For example, the step data is 200. Combined with the pre-stored calibration steps (10 steps), the number of steps in this exercise can be calculated as 2000 steps. Further, other motion data such as exercise distance, exercise speed, and calorie consumption are calculated in combination with personal information.

FIG. 5 is a flowchart of a wireless self-powered step counting method according to an embodiment of the present invention. As shown in FIG. 5, the method includes the following steps:

Step S101, the at least one friction generator converts mechanical energy into electrical energy;

Step S102, storing the electric energy generated by the at least one friction generator in the energy storage module; in step S103, the switch module detects the electric energy stored in the energy storage module, and outputs the energy from the energy storage module when the electric energy is greater than or equal to a preset threshold Electric energy

Step S104, the processing module records the number of times of power output and uses the number of times of power output as the step count data;

Step S105, transmitting the step data to the wireless communication module;

Specifically, the step may be performed as follows: after the end of the step counting operation, the processing module that records the number of times of power output receives the radio provided by the external terminal device, and transmits the stored step data to the wireless communication module, and the wireless communication module also receives The radio can send the step data to the terminal For the terminal device to calculate various motion data such as the number of movement steps, the movement distance and the calorie consumption in combination with the user data, that is, the step data is stored in the processing module, and the step data is transmitted to the wireless communication module. It is done after the completion of the step.

Alternatively, in the step counting process, the energy storage module supplies power to the processing module that records the number of times the power is output, and the wireless communication module acquires part of the power from the processing module, and uses the power to receive the current temporary step data in real time and store it. Here, the step data is stored in the wireless communication module, and the transmission of the step data to the wireless communication module is completed in the step counting process. After the end of the step counting operation, the wireless communication module storing the step data receives the radio provided by the external terminal device to transmit the step data to the terminal device.

Step S106: The wireless communication module wirelessly sends the step data to the terminal device; the wireless communication module may send the step data by using NFC, RFID, or Bluetooth.

Step S107: The terminal device receives the step data and calculates the motion data according to the step data.

Combined with the data input by the user, such as weight, height, etc., combined with the step data, various motion data such as the number of movement steps, the movement distance and the calorie consumption are obtained and displayed.

The wireless self-powered step counting method further includes a calibration method, wherein the number of calibration steps required to output the power of the switch module is calculated according to the step data and the pre-recorded steps, and the calibration step is pre-stored.

Specifically, taking the terminal device as an NFC mobile phone as an example, when first using, opening an application app on the NFC mobile phone, selecting a calibration function, and inputting a predetermined number of steps, for example, 100 steps;

After 100 steps of motion, it stops and receives the step data. The step data is the number of times the energy storage module outputs power, for example, 10 times.

The NFC mobile phone app combines the predetermined number of steps (100). It can be known that the energy storage module needs 10 steps for each power output, and the value (10 steps) is used as the calibration step number and pre-stored.

In subsequent use, open the app's motion function, input personal information such as gender, height, weight, etc., and receive the step data sent by the wireless communication module. For example, the step data is 200, combined with the pre-stored calibration steps (10 steps) , you can calculate the number of steps in this exercise is 2000 steps. Further, other motion data such as a moving distance, a moving speed, and a calorie consumption are calculated in combination with personal information.

Finally, the specific structure of the friction generator in the wireless self-powered walking shoe, the step counting system and the step counting method provided by the embodiment of the present invention will be described in detail. The possible structure of the above friction generator will be respectively described by four embodiments:

Embodiment 1

The first structure of the friction generator is shown in Figures 6a and 6b. 6a and 6b respectively show a perspective structural view and a cross-sectional structural view of a first structure of a friction generator. The friction The motor includes: a first electrode layer 111, a first polymer insulating layer 112, and a second electrode layer 113 which are sequentially stacked. Specifically, the first electrode layer 111 is disposed on the first side surface of the first polymer insulating layer 112; and the second side surface and the second electrode layer of the first polymer insulating layer 112 113 is oppositely disposed, a friction interface is formed between the first polymer insulating layer 112 and the second electrode layer 113, and the first electrode layer 111 and the second electrode layer 113 constitute a signal output end of the friction generator.

In order to increase the power generation capability of the friction generator, the micro-nano structure 120 may be further disposed on the second side surface of the first polymer insulating layer 112 (i.e., the surface opposite to the second electrode layer 113). Therefore, when the friction generator is squeezed, the opposing surfaces of the first polymer insulating layer 112 and the second electrode layer 113 can better contact the friction, and the first electrode layer 111 and the second electrode layer At 113, more charge is induced.

The above micro-nano structure 120 can specifically take the following two possible implementations: In the first method, the micro-nano structure is a very small concave-convex structure of micrometer or nanometer. The uneven structure can increase frictional resistance and improve power generation efficiency. The uneven structure can be formed directly at the time of film preparation, and the surface of the first polymer insulating layer can be formed into an irregular concave-convex structure by a grinding method. Specifically, the uneven structure may be a concave-convex structure of a semicircular shape, a striped shape, a cubic shape, a quadrangular pyramid shape, or a cylindrical shape. In the second mode, the micro/nano structure is a nano-scale pore structure, and the material used for the first polymer insulating layer is preferably polyvinylidene fluoride (PVDF), and the thickness thereof is 0.5-1.2 mm (preferably 1.0 mm). And a plurality of nanopores are disposed on a surface of the second electrode layer. The size of each nanopore, that is, the width and depth, can be selected according to the needs of the application. The preferred size of the nanopore is: 10-100 nm in width and 4-50 μm in depth. The number of nanopores can be adjusted according to the required output current value and voltage value. Preferably, the nanopores are uniformly distributed with a pore spacing of 2-30 μm, and a more preferable uniform distribution of the average pore spacing of 9 μm.

The following describes the working principle of the above friction generator. When the friction generator is pressed, the layers of the friction generator are squeezed, causing the second electrode layer 113 in the friction generator to rub against the surface of the first polymer insulating layer 112 to generate an electrostatic charge, thereby causing A potential difference occurs between the first electrode layer 111 and the second electrode layer 113. Since the first electrode layer 111 and the second electrode layer 113 are connected as an output end of the friction generator to the energy storage module, the energy storage module constitutes an external circuit of the friction generator, and the two output ends of the friction generator are equivalent to being externally The circuit is connected. When the layers of the friction generator are restored to the original state, the internal potential formed between the first electrode layer 111 and the second electrode layer 113 disappears at this time, and the balanced first electrode layer 111 and the second electrode at this time A reverse potential difference will again occur between layers 113. By repeatedly rubbing and recovering, a periodic AC pulse electrical signal can be formed in the external circuit.

The material of the friction generator in the first embodiment will be specifically described below. Wherein the first high The molecular polymer insulating layer is selected from the group consisting of a polyimide film, an aniline resin film, a polyacetal film, an ethyl cellulose film, a polyamide film, a melamine furfural film, a polyethylene glycol succinate film, Cellulose film, cellulose acetate film, polyethylene adipate film, poly(phenylene terephthalate film), cellulose sponge film, regenerated sponge film, polyurethane elastomer film, styrene propylene Copolymer film, styrene butadiene copolymer film, rayon film, polyfluorene film, methacrylate film, polyvinyl alcohol film, polyvinyl alcohol film, polyester film, polyisobutylene film, polyurethane flexible sponge film , polyethylene terephthalate film, polyvinyl butyral film, furfural phenol film, neoprene film, butadiene propylene copolymer film, natural rubber film, polyacrylonitrile film, acrylonitrile Any one of a vinyl chloride film and a polyvinyl propylene glycol carbonate film.

Wherein, the material used for the first electrode layer is indium tin oxide, graphene, silver nanowire film, metal or alloy; wherein the metal is gold, silver, platinum, palladium, aluminum, nickel, copper, titanium, chromium, Tin, iron, manganese, molybdenum, tungsten or vanadium; alloys are aluminum alloys, titanium alloys, magnesium alloys, niobium alloys, copper alloys, alloys, manganese alloys, nickel alloys, lead alloys, tin alloys, cadmium alloys, niobium alloys, Indium alloy, gallium alloy, tungsten alloy, molybdenum alloy, niobium alloy or niobium alloy.

Wherein, the material used for the second electrode layer is a metal or an alloy; wherein the metal is gold, silver, platinum, palladium, aluminum, nickel, copper, titanium, chromium, tin, iron, manganese, molybdenum, tungsten or vanadium; Aluminum alloy, titanium alloy, magnesium alloy, niobium alloy, copper alloy, alloy, manganese alloy, nickel alloy, lead alloy, tin alloy, cadmium alloy, niobium alloy, indium alloy, gallium alloy, tungsten alloy, molybdenum alloy, niobium Alloy or niobium alloy.

According to the study by the inventors, the metal rubs against the polymer, and the metal is more likely to lose electrons. Therefore, rubbing the metal electrode with the polymer polymer can also improve the energy output. Therefore, the friction generator described above mainly generates an electrical signal by friction between the metal (the second electrode layer 113) and the polymer (the first polymer insulating layer 112), and mainly utilizes the characteristic that the metal easily loses electrons. An induced electric field is formed between the second electrode layer 113 and the first electrode layer 111 to generate a voltage or a current.

Embodiment 2

The second structure of the friction generator is shown in Figures 7a and 7b. 7a and 7b are respectively a perspective structural view and a cross-sectional structural view showing a second structure of the friction generator. The friction generator includes: a first electrode layer 211, a first polymer insulating layer 212, a second polymer insulating layer 214, and a second electrode layer 213 which are sequentially stacked. Specifically, the first electrode layer 211 is disposed on the first side surface of the first polymer insulating layer 212; the second electrode layer 213 is disposed on the first side surface of the second polymer insulating layer 214; Polymer insulation layer The second side surface of the 212 is opposite to the second side surface of the second polymer insulating layer 214, and a friction interface is formed between the first polymer insulating layer 212 and the second polymer insulating layer 214. An electrode layer 211 and a second electrode layer 213 constitute a signal output end of the friction generator.

In order to increase the power generation capability of the friction generator, the micro-nano structure 220 is provided on at least one of the two faces disposed opposite to each of the first polymer insulating layer 212 and the second polymer insulating layer 214. Therefore, when the friction generator is squeezed, the opposing surfaces of the first polymer insulating layer 212 and the second polymer insulating layer 214 can better contact the friction, and in the first electrode layer 211 and More charge is induced at the second electrode layer 213. The above micro-nano structure can be referred to the above description, and will not be described herein.

The working principle of the friction generator shown in Figures 7a and 7b is similar to that of the friction generator shown in Figures 6a and 6b. The only difference is that when the layers of the friction generator shown in FIGS. 7a and 7b are pressed, the surfaces of the first polymer insulating layer 212 and the second polymer insulating layer 214 are rubbed against each other. Produces an electrostatic charge. Therefore, the working principle of the friction generator shown in Figs. 7a and 7b will not be described here.

The friction generator shown in Figs. 7a and 7b mainly generates an electric signal by friction between the polymer (the first polymer insulating layer 212) and the polymer (the second polymer insulating layer 214).

The material of the friction generator in the second embodiment will be specifically described below. The first polymer polymer insulating layer and the second polymer polymer insulating layer are respectively selected from any one of the materials selected from the first polymer polymer insulating layer described in the first embodiment. . The material of the first polymer insulating layer and the second polymer insulating layer may be the same or different. If the two layers of polymer insulation are made of the same material, the amount of charge that causes triboelectric charging is small. Preferably, the first polymer insulating layer is different from the second polymer insulating layer.

For the materials used for the first electrode layer and the second electrode layer, refer to the description of the first electrode layer in the first embodiment, and details are not described herein.

Embodiment 3

In addition to the above two structures, the friction generator can also be implemented with a third structure, as shown in Figures 8a and 8b. 8a and 8b are respectively a perspective structural view and a cross-sectional structural view showing a third structure of the friction generator. As can be seen from the figure, the third structure adds an intermediate film layer to the second structure, that is, the third structure of the friction generator includes a first electrode layer 311 which is sequentially stacked, and the first high The molecular polymer insulating layer 312, the intermediate film layer 310, the second polymer insulating layer 314, and the second electrode layer 313. Specifically, the first electrode layer 311 is disposed on the first side surface of the first polymer insulating layer 312; the second electrode layer 313 is disposed on the first side surface of the second polymer insulating layer 314, and the intermediate film layer 310 is disposed A first polymer polymer insulating layer 312 and an intermediate film layer 310 are formed between the second side surface of the first polymer insulating layer 312 and the second side surface of the second polymer insulating layer 314. A friction interface is formed between the friction interface, and/or the second polymer insulating layer 314 and the intervening film layer 310; the first electrode layer 311 and the second electrode layer 313 constitute a signal output end of the friction generator.

In order to improve the friction effect, at least one of the two faces opposite to each other of the intermediate film layer 310 and the first polymer insulating layer 312 is provided with a micro/nano structure, and/or the intermediate film layer 310 and the first The micro-nano structure 320 is disposed on at least one of the two faces of the two high-molecular polymer insulating layers 314. For the specific arrangement of the micro-nano structure, reference may be made to the above description, and details are not described herein again.

In the implementation shown in Figures 8a and 8b, the intervening film layer 310 is a layer of polymeric film, and thus substantially similar to the implementation shown in Figures 7a and 7b, still through the polymer (intermediate film layer 310) And the friction between the polymer (the first polymer insulating layer 312) and/or the polymer (the intermediate film layer 310) and the polymer (the second polymer insulating layer 314) to generate electricity. Therefore, the working principle of the friction generator shown in Figs. 8a and 8b will not be described again here.

In the third embodiment, the first polymer polymer insulating layer, the second polymer polymer insulating layer and the intermediate film layer are respectively selected from the first polymer polymer insulating layer described in the first embodiment. Any of the materials. The material of the first polymer insulating layer, the second polymer insulating layer, and the intermediate film layer may be the same or different. If the materials of the above three layers are the same, the amount of charge that causes the frictional electrification is small. Preferably, the first polymer electrolyte insulating layer is different in material from the intermediate film layer. The first polymer insulating layer and the second polymer insulating layer are preferably the same, which can reduce the material type and make the production of the present invention more convenient.

Embodiment 4

In addition, the friction generator can also be implemented by using the fourth structure, as shown in FIG. 9a and FIG. 9b, comprising: a first electrode layer 411, a first polymer insulating layer 412, and an intervening electrode layer, which are sequentially stacked. 410, a second polymer insulating layer 414 and a second electrode layer 413; wherein the first electrode layer 411 is disposed on the first side surface of the first polymer insulating layer 412; the second electrode layer 413 is disposed at On the first side surface of the second polymer insulating layer 414, the intervening electricity The pole layer 410 is disposed between the second side surface of the first polymer insulating layer 412 and the second side surface of the second polymer insulating layer 414, the first polymer insulating layer 412 and the intervening electrode layer A friction interface is formed between 410, and/or a friction interface is formed between the second polymer insulating layer 414 and the intervening electrode layer 410, and any of the intervening electrode layer 410, the first electrode layer 411, and the second electrode layer 413 The two or the three form a signal output end of the friction generator (ie, the first electrode layer 411 and the second electrode layer 413 are connected in series as one output electrode of the friction generator; the intermediate electrode layer 410 is another output electrode of the friction generator or Any two of the first electrode layer 411, the second electrode layer 413, and the intervening electrode layer 410 serve as output electrodes of the friction generator.

In order to improve the rubbing effect, the first polymer polymer insulating layer 412 is provided with a micro/nano structure on at least one of the face of the intermediate electrode layer 410 and the face of the intermediate electrode layer 410 with respect to the first polymer insulating layer 412 ( The second polymer insulating layer 414 is provided with a micro/nano structure on at least one of a face of the intermediate electrode layer 410 and at least one of the faces of the intermediate electrode layer 410 and the second polymer insulating layer 414. Figure not shown). For the specific setting of the micro-nano structure, refer to the above description, and details are not described herein again.

The working principle of the friction generator shown in Figures 9a and 9b is similar to that of the friction generator shown in Figures 8a and 8b. The only difference is that when the layers of the friction generator shown in FIGS. 9a and 9b are bent, the intermediate electrode layer 410 and the first polymer insulating layer 412 and/or the intervening electrode layer 410 and the second polymer are used. The surfaces of the polymer insulating layer 414 rub against each other to generate an electrostatic charge. Therefore, the working principle of the friction generator shown in Figs. 9a and 9b will not be described again here.

In the fourth embodiment, the first polymer insulating layer and the second polymer insulating layer are respectively selected from the materials selected from the first polymer insulating layer described in the first embodiment. Any of them. The material of the first polymer polymer insulating layer and the second polymer polymer insulating layer may be the same or different. Preferably, the first polymer insulating layer is the same as the second polymer insulating layer, and the material type can be reduced, making the production of the present invention more convenient.

The material used for the intervening electrode layer is a metal or an alloy; for the specific materials of the metal and the alloy, refer to the description of the second electrode layer in the first embodiment.

The wireless self-powered walking shoe, the step counting system and the step counting method provided by the invention provide power supply by using a friction generator, and the user can generate electric energy to supply power to the self-powered walking shoes as long as the user presses the friction. It not only saves the trouble that needs to be replaced after the battery is dead, but also solves the problem that the battery cannot be powered after it is used up. Therefore, the wireless self-powered walking shoe provided by the invention can be realized The self-powered function, which replaces the existing battery power supply, greatly saves resources and protects the environment.

Moreover, the invention directly sets the mechanical energy of the user stepping on the shoe body into electric energy by setting the friction generator inside the shoe body, accurately reflecting the movement condition of the user; and completing the calculation and display of the user's motion data through the terminal, enabling the user to Accurate understanding of your physical condition and improved user experience. In addition, the wireless self-powered step counting system provided by the invention is small in size and light in weight, and all modules are arranged inside the shoe body, which is convenient to carry and brings great convenience to the user.

Those skilled in the art will appreciate that the device structure shown in the figures or embodiments is merely illustrative and represents a logical structure. The modules displayed as separate components may or may not be physically separate, and the components displayed as modules may or may not be physical modules.

It will be apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and the modifications of the invention

Claims

claims

1. A wireless self-powered pedometer shoe, including a shoe body, characterized in that the shoe body further includes:

At least one triboelectric generator to convert mechanical energy into electrical energy;

An energy storage module is connected to the at least one friction generator and stores the electrical energy generated by the friction generator;

A switch module, connected to the energy storage module, outputs electric energy when detecting that the electric energy stored in the energy storage module is greater than or equal to a preset threshold;

A processing module, connected to the switch module, stores the number of times the switch module outputs electric energy as step counting data;

The wireless communication module is connected to the processing module, receives step counting data from the processing module and sends the step counting data to an external terminal device, so that the terminal device can calculate and display motion data based on the step counting data.

2. The pedometer shoe according to claim 1, characterized in that after the step counting is completed, the processing module receives the power provided by the terminal device in a wireless manner, and uses the power to transmit the pedometer data to the wireless communication module;

After the step counting is completed, the wireless communication module receives the power provided by the terminal device in a wireless manner, and uses the power to transmit the step counting data to the terminal device.

3. The pedometer shoe according to claim 1, characterized in that, when the switch module outputs electric energy, it provides electric energy to the processing module, and the processing module provides electric energy to the wireless communication module, so that the The processing module transmits the step counting data to the wireless communication module, and the wireless communication module stores the step counting data;

4. The pedometer shoe according to claim 1, wherein the wireless communication module is

NFC wireless communication module, RFID wireless communication module or Bluetooth communication module.

5. The pedometer shoe according to claim 1, characterized in that the motion data includes one or more of the following data: number of steps, distance of motion and calories burned.

6. The pedometer shoe according to claim 1, characterized in that the energy storage module includes: a rectifier circuit connected to the output end of the friction generator to rectify the electrical signal output by the friction generator. deal with; A filter circuit, connected to the rectifier circuit, filters the unidirectional pulsed direct current output by the rectifier circuit to obtain a direct current signal;

The energy storage element is connected to the filter circuit and stores the direct current signal output by the filter circuit.

7. The pedometer shoe according to claim 1, characterized in that the number of the friction generators is multiple, and the plurality of friction generators are arranged inside the pedometer shoe in a stacked manner and/or a tiled manner. , and multiple friction generators are connected in series and/or parallel.

8. The pedometer shoe according to claim 1, wherein the triboelectric generator includes: a first electrode layer, a first polymer insulation layer, and a second electrode layer that are stacked in sequence; wherein, The first electrode layer is disposed on the first side surface of the first polymer insulating layer; and the second side surface of the first polymer insulating layer is disposed opposite to the second electrode layer , wherein a friction interface is formed between the first polymer insulating layer and the second electrode layer, and the first electrode layer and the second electrode layer serve as the two output ends of the triboelectric generator. .

9. The pedometer shoe according to claim 1, wherein the triboelectric generator includes: a first electrode layer, a first polymer insulation layer, and a second polymer insulation layer stacked in sequence. , and a second electrode layer; wherein, the first electrode layer is disposed on the first side surface of the first polymer insulating layer, and the second electrode layer is disposed on the second polymer insulating layer. on the first side surface of the insulating layer, and the second side surface of the first polymer insulating layer is opposite to the second side surface of the second polymer insulating layer, wherein, the first A friction interface is formed between the high molecular polymer insulating layer and the second high molecular polymer insulating layer, and the first electrode layer and the second electrode layer serve as the two output ends of the triboelectric generator.

10. The pedometer shoe according to claim 1, characterized in that the triboelectric generator includes: a first electrode layer stacked in sequence, a first polymer insulation layer, an intervening film layer, a second polymer layer polymer insulating layer, and a second electrode layer; wherein, the first electrode layer is disposed on the first side surface of the first polymer insulating layer, and the second electrode layer is disposed on the second on the first side surface of the high molecular polymer insulating layer, and the intermediate film layer is disposed on the second side surface of the first high molecular polymer insulating layer and the second side surface of the second high molecular polymer insulating layer. between lateral surfaces;

Wherein, a friction interface is formed between the first polymer insulating layer and the intervening film layer, and/or a friction interface is formed between the second polymer insulating layer and the intervening film layer, The first electrode layer and the second electrode layer serve as two output ends of the triboelectric generator.

11. The pedometer shoe according to claim 1, characterized in that, the triboelectric generator includes: a first electrode layer stacked in sequence, a first polymer insulation layer, an intermediate electrode layer, a second a polymer insulating layer, and a second electrode layer; wherein, the first electrode layer is disposed on the first side surface of the first polymer insulating layer, and the second electrode layer is disposed on the on the first side surface of the second high molecular polymer insulating layer, and the intermediate electrode layer is disposed between the second side surface of the first high molecular polymer insulating layer and the second high molecular polymer insulating layer between the second side surfaces;

Wherein, a friction interface is formed between the first polymer insulating layer and the intermediate electrode layer, and/or a friction interface is formed between the second polymer insulating layer and the intermediate electrode layer; The first electrode layer and the second electrode layer connected in series are one output end of the friction generator, and the intermediate electrode layer is the other output end of the friction generator.

12. The pedometer shoe according to any one of claims 8-11, characterized in that any one of the two surfaces forming the friction interface is provided with a micro-nano structure.

13. A wireless self-powered pedometer system, characterized in that it includes the pedometer shoes described in any one of claims 1-12, and further includes:

The terminal device provides power to the wireless communication module in a wireless manner, receives the step counting data sent by the wireless communication module, calculates and displays the motion data based on the step counting data.

14. The pedometer system according to claim 13, characterized in that the terminal device also provides power to the processing module in a wireless manner.

15. The pedometer system according to claim 13, characterized in that the terminal device is further configured to calculate the number of calibrated steps required for the switch module to output electric energy at one time based on the pedometer data and the pre-recorded number of steps, and pre-store the calculated number of steps. Calibration steps.

16. A wireless self-powered pedometer method, characterized by including:

At least one triboelectric generator converts mechanical energy into electrical energy;

storing electrical energy generated by the at least one friction generator in an energy storage module;

The switch module detects the electric energy stored in the energy storage module, and when the electric energy is greater than or equal to the preset threshold, outputs electric energy from the energy storage module;

The processing module records the number of times of power output and uses the number of times of power output as step counting data; transmits the step counting data to the wireless communication module;

The terminal device receives step counting data and calculates motion data based on the step counting data.

17. The method according to claim 16, wherein transmitting the pedometer data to the wireless communication module further includes: During the step counting process, the electric energy output by the energy storage module is used to transmit the step counting data to the wireless communication module and store it.

18. The method according to claim 16, wherein transmitting the pedometer data to the wireless communication module further includes:

After the step counting is completed, wireless power is received from the terminal device and the step counting data stored in the processing module is transmitted to the wireless communication module using the wireless power.

19. The method according to any one of claims 16 to 18, further comprising: calculating the number of calibration steps required for the energy storage module to output primary electric energy based on step counting data and the number of pre-recorded steps, and pre-stored The number of calibration steps.