Tire pressure monitoring system, method and device and computer storage medium

Abstract

The invention provides a tire pressure monitoring system, method and device and a computer storage medium. The tire pressure monitoring system comprises a tire pressure monitoring assembly; the tire pressure monitoring assembly and the Bluetooth low-energy-consumption host transmit tire pressure monitoring data through a Bluetooth antenna; the battery module of the tire pressure monitoring assembly collects radio wave energy through the Bluetooth antenna for charging. In this way, radio waves are received to charge the lithium battery, and the service life of the battery is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of tire pressure monitoring, and in particular to a tire pressure monitoring system, method, device and computer storage medium. Background Art

[0002] Based on the Ambient IoT proposed by the SIG organization as the next stage of the development of IoT devices, connected devices can be powered by harvesting energy from any feasible environmental source. Ambient energy includes radio waves, light, motion, and heat.

[0003] As BLE tire pressure monitoring (TPMS) solutions become more and more mature, new energy vehicle OEMs are gradually accepting BLE to replace SUB-1G as a TPMS solution. Its advantages are as follows:

[0004] 1. The vehicle-mounted BLE digital key can be reused as the host or anchor transceiver to reduce costs;

[0005] 2. The SUB-1G TPMS solution can only be used on one end, while the BLE solution can be used for two-way interconnection, which enriches the application field;

[0006] 3. The size of the transmitting antenna is relatively reduced, and the overall size of the tire pressure sensor is reduced.

[0007] However, no matter what TPMS solution is used, its energy supply is usually one of the obstacles to its miniaturization and long life. The traditional implementation method has the following shortcomings: In the traditional method, batteries are needed to supply power, and the tire pressure sensor generally needs to be replaced after a few years of life. Summary of the invention

[0008] The present application provides a tire pressure monitoring method, device and computer storage medium.

[0009] In order to solve the above technical problems, the present application proposes a tire pressure monitoring system based on Bluetooth low energy, the tire pressure monitoring system comprising: a tire pressure monitoring component; a Bluetooth low energy host, wherein the tire pressure monitoring component and the Bluetooth low energy host transmit tire pressure monitoring data via a Bluetooth antenna; the battery module of the tire pressure monitoring component collects radio wave energy through the Bluetooth antenna for charging.

[0010] Among them, the tire pressure monitoring component includes a power detection circuit and a directional coupler, one end of the directional coupler is connected to the Bluetooth antenna, and the other end of the directional coupler is connected to the power detection circuit; one end of the power detection circuit is connected to the battery module, and the power detection circuit is used to convert the radio wave energy collected by the Bluetooth antenna into voltage.

[0011] The power detection circuit includes: a first inductor, one end of which is grounded, and the other end is connected to the coupling end of the directional coupler; a second inductor, one end of which is connected to the coupling end of the directional coupler, and the other end is connected to the input end of the diode; a capacitor, one end of which is connected to the output end of the diode, and the other end is grounded; a first resistor, one end of which is connected to the output end of the diode, and the other end is grounded; a second resistor, one end of which is connected to the isolation end of the directional coupler, and the other end is grounded; the output end of the diode is connected to the output end of the power detection circuit.

[0012] Among them, the tire pressure monitoring component also includes: a filter and a Bluetooth chip; one end of the filter is connected to the directional coupler, and the other end is connected to the Bluetooth chip; the Bluetooth chip is connected to the battery module for charging the battery module with the receiving and transmitting energy.

[0013] Among them, the tire pressure monitoring component also includes a temperature detection circuit and a Bluetooth chip; the temperature detection circuit is connected to the battery module, and the battery module is connected to the Bluetooth chip; the temperature detection circuit is used to charge the battery module to convert heat energy into electrical energy for the battery module to transmit to the Bluetooth chip to realize tire pressure monitoring.

[0014] Among them, the temperature detection circuit includes: a third resistor, one end of the third resistor is connected to the battery module, and the other end is connected to the output end of the temperature detection circuit; a fourth resistor, one end of the fourth resistor is connected to the third resistor, and the other end is grounded; a thermistor, one end of the thermistor is connected to the third resistor, and the other end is grounded.

[0015] In order to solve the above technical problems, the present application proposes a tire pressure monitoring method, which is applied to the above tire pressure monitoring system. The tire pressure monitoring method includes: in response to the vehicle being in a driving state, the temperature detection circuit charges the battery module of the tire pressure monitoring component to convert heat energy into electrical energy for the battery module to transmit to the Bluetooth chip to realize tire pressure monitoring.

[0016] Among them, the tire pressure monitoring method also includes: in response to the vehicle being in a parked state, the tire pressure monitoring component collects radio wave energy; the tire pressure monitoring component converts the radio wave energy into electrical power to charge the battery module of the tire pressure monitoring component.

[0017] Among them, the tire pressure monitoring method also includes: in response to the vehicle being in a driving state, the tire pressure monitoring component collects tire pressure monitoring data; the tire pressure monitoring component transmits the tire pressure monitoring data to the Bluetooth low energy host via a Bluetooth antenna; the Bluetooth low energy host generates tire pressure monitoring information based on the tire pressure monitoring data.

[0018] In order to solve the above technical problems, the present application proposes a tire pressure monitoring device, which includes a memory and a processor coupled to the memory; wherein the memory is used to store program data, and the processor is used to execute the program data to implement the above tire pressure monitoring method.

[0019] In order to solve the above technical problems, the present application proposes a computer storage medium, which is used to store program data. When the program data is executed by a computer, it is used to implement the above tire pressure monitoring method.

[0020] Different from the prior art, the beneficial effect of the present application is that: the present application proposes a tire pressure monitoring system based on Bluetooth low energy, the tire pressure monitoring system comprises: a tire pressure monitoring component; a Bluetooth low energy host, wherein the tire pressure monitoring component and the Bluetooth low energy host transmit tire pressure monitoring data via a Bluetooth antenna; the battery module of the tire pressure monitoring component collects radio wave energy through the Bluetooth antenna for charging. In the above manner, the lithium battery is charged by receiving radio waves, thereby extending the battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 is a schematic diagram of an embodiment of a tire pressure monitoring system 10 provided by the present application;

[0023] Figure 2 is a schematic diagram of another embodiment of the tire pressure monitoring system 10 provided by the present application;

[0024] Figure 3 is a schematic diagram of a tire pressure monitoring assembly 11 provided in the present application;

[0025] Figure 4 is a schematic diagram of a power detection circuit 112 provided in the present application;

[0026] Figure 5 is a schematic diagram of an embodiment of a temperature detection circuit provided by the present application;

[0027] Figure 6 is a schematic diagram of another embodiment of the temperature detection circuit provided by the present application;

[0028] Figure 7is a flow chart of an embodiment of a tire pressure monitoring method provided by the present application;

[0029] Figure 8 is a structural schematic diagram of an embodiment of a tire pressure monitoring device provided by the present application;

[0030] Fig. 9 It is a structural diagram of an embodiment of a computer storage medium provided by the present application.

[0031] In the embodiment of the present application, the numbers are as follows: tire pressure monitoring system 10, tire pressure monitoring component 11, Bluetooth low energy host 12, directional coupler 111, power detection circuit 112, filter 113, Bluetooth chip 114, battery module 115, first inductor L1, second inductor L2, first resistor R1, second resistor R2, third resistor R3, fourth resistor R4. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] Please refer to Figure 1-Figure 2 , Figure 1 is a schematic diagram of an embodiment of a tire pressure monitoring system 10 provided by the present application; Figure 2 is a schematic diagram of another embodiment of the tire pressure monitoring system 10 provided in the present application.

[0034] like Figure 1 As shown, the tire pressure monitoring system 10 includes: a tire pressure monitoring component 11 and a Bluetooth low energy host 12 .

[0035] like Figure 2 As shown, the tire pressure monitoring component 11 and the Bluetooth low energy host 12 transmit tire pressure monitoring data via the Bluetooth antenna; the battery module 115 of the tire pressure monitoring component 11 collects radio wave energy through the Bluetooth antenna for charging.

[0036] In an embodiment of the present application, the Bluetooth antenna is a BLE antenna, which collects radio waves in the environment to power the tire pressure sensor, thereby meeting its low power consumption purpose.

[0037] like Figure 3 As shown, Figure 3It is a schematic diagram of the tire pressure monitoring component 11 provided in the present application. In one embodiment of the present application, the tire pressure monitoring component 11 includes a power detection circuit 112 and a directional coupler 111. One end of the directional coupler 111 is connected to the Bluetooth antenna, and the other end of the directional coupler 111 is connected to the power detection circuit 112; one end of the power detection circuit 112 is connected to the battery module 115, and the power detection circuit 112 is used to convert the radio wave energy collected by the Bluetooth antenna into voltage.

[0038] Specifically, the battery module 115 uses lithium batteries. The present application enables the normal operation of the device by collecting energy from the external environment. The main energy sources are radio waves, thermal energy, etc., and lithium batteries are used to replace alkaline batteries.

[0039] like Figure 4 As shown, Figure 4 1 is a schematic diagram of a power detection circuit 112 provided by the present application. A first inductor L1, one end of the first inductor L1 is grounded, and the other end is connected to the coupling end of the directional coupler 111; a second inductor L2, one end of the second inductor L2 is connected to the coupling end of the directional coupler 111, and the other end is connected to the input end of the diode; a capacitor C1, one end of the capacitor C1 is connected to the output end of the diode, and the other end is grounded; a first resistor R1, one end of the first resistor R1 is connected to the output end of the diode, and the other end is grounded; a second resistor R2, one end of the second resistor R2 is connected to the isolation end of the directional coupler 111, and the other end is grounded; the output end of the diode is connected to the output end of the power detection circuit 112.

[0040] Specifically, Figure 4 As shown, in the directional coupler 111, ①-② are straight-through, which does not affect the normal operation of the BLE module; in the directional coupler 111, ①-③ are coupled, and the energy of port ① can be coupled to the three ports, and the energy is converted into a DC voltage through the power detection circuit 112 for battery charging and use; in the directional coupler 111, ①-④ are isolated, and there is almost no energy transmission. Therefore, the present application can collect radio waves in the environment through port ①.

[0041] In one embodiment of the present application, the tire pressure monitoring component 11 also includes: a filter 113 and a Bluetooth chip 114; one end of the filter 113 is connected to the directional coupler 111, and the other end is connected to the Bluetooth chip 114; the Bluetooth chip 114 is connected to the battery module 115, which is used to charge the battery module 115 with the transmitted and received energy.

[0042] Specifically, the filtering component is used to filter the data to prevent signal interference. In the embodiment of the present application, any filter or filtering circuit can be used for filtering, and the present application does not make any specific limitations.

[0043] In one embodiment of the present application, the tire pressure monitoring component 11 also includes a temperature detection circuit (not shown) and a Bluetooth chip 114; the temperature detection circuit (not shown) is connected to a battery module 115, and the battery module 115 is connected to the Bluetooth chip 114; the temperature detection circuit (not shown) is used to charge the battery module 115 to convert thermal energy into electrical energy for the battery module 115 to transmit to the Bluetooth chip 114 to achieve tire pressure monitoring.

[0044] like Figure 5-Figure 6 As shown, Figure 5 is a schematic diagram of an embodiment of a temperature detection circuit provided by the present application; Figure 6 1 is a schematic diagram of another embodiment of the temperature detection circuit provided by the present application. In one embodiment of the present application, the temperature detection circuit (not shown) includes: a third resistor R3, one end of the third resistor R3 is connected to the battery module 115, and the other end is connected to the output end of the temperature detection circuit (not shown); a fourth resistor R4, one end of the fourth resistor R4 is connected to the third resistor R3, and the other end is grounded; a thermistor, one end of the thermistor is connected to the third resistor R3, and the other end is grounded.

[0045] A temperature detection circuit (not shown) is formed by the thermistor. As the temperature changes, the resistance of the thermistor changes, the voltage division ratio is changed, and a voltage is output to reverse charge the battery module 115.

[0046] The present invention also proposes a tire pressure monitoring method, which is applied to the above-mentioned tire pressure monitoring system.

[0047] The tire pressure monitoring method of the present application is applied to a tire pressure monitoring device, wherein the tire pressure monitoring device of the present application can be a server, or a system composed of a server and a local terminal cooperating with each other. Accordingly, the various parts of the tire pressure monitoring device, such as various units, subunits, modules, and submodules, can all be set in the server, or can be set in the server and the local terminal respectively.

[0048] Furthermore, the above-mentioned server can be hardware or software. When the server is hardware, it can be implemented as a distributed server cluster consisting of multiple servers, or it can be implemented as a single server. When the server is software, it can be implemented as multiple software or software modules, such as software or software modules used to provide distributed servers, or it can be implemented as a single software or software module, which is not specifically limited here. In some possible implementations, the tire pressure monitoring method of the embodiment of the present application can be implemented by a processor calling computer-readable instructions stored in a memory.

[0049] For details, please see Figure 7 , Figure 7It is a flow chart of an embodiment of the tire pressure monitoring method provided in the present application.

[0050] like Figure 7 As shown, the specific steps are as follows:

[0051] Step S11: In response to the vehicle being in a driving state, the temperature detection circuit charges the battery module of the tire pressure monitoring component to convert thermal energy into electrical energy for the battery module to transmit to the Bluetooth chip to achieve tire pressure monitoring.

[0052] Specifically, the tire pressure monitoring device first obtains the motion state of the vehicle, wherein the motion state of the vehicle includes but is not limited to a driving state or a parked state, and the motion state of the vehicle can be obtained by detecting the speed and acceleration of the vehicle.

[0053] When the vehicle is in a driving state, the tire pressure monitoring device responds to the vehicle being in a driving state, and the tire pressure monitoring component 11 collects tire pressure monitoring data. Among them, the tire pressure monitoring component 11 can be set at any position of the vehicle.

[0054] In one embodiment of the present application, heat is converted into voltage through sensors and thermocouples, thereby reversely charging the battery module 115.

[0055] In an embodiment of the present application, the battery module 115 of the tire pressure monitoring component passes through a temperature detection circuit, which converts thermal energy into electrical energy and reversely charges the battery module 115 to convert thermal energy into electrical energy for the battery module 115 to transmit to the Bluetooth chip 114 to achieve tire pressure monitoring.

[0056] Step S12: In response to the vehicle being in a parked state, the tire pressure monitoring component collects radio wave energy.

[0057] When the vehicle is parked, the Bluetooth antenna collects radio wave energy, mainly the energy of WiFi, Bluetooth, LTE signals (B38, B40) and a small part of the transceiver energy of the Bluetooth chip 114. Through the coupler, the received energy is converted into voltage through the power detection circuit 112.

[0058] This application collects environmental energy, radio waves, and temperature as the driver of the Bluetooth chip, flexibly meeting the low-power consumption requirements of the Bluetooth chip.

[0059] Step S13: The tire pressure monitoring component converts the radio wave energy into electrical power to charge the battery module of the tire pressure monitoring component.

[0060] In one embodiment of the present application, when the vehicle is in a driving state, the tire pressure monitoring data can also be transmitted to the Bluetooth low energy host via the Bluetooth antenna. Specifically, the tire pressure detection device responds to the vehicle being in a driving state, and the tire pressure monitoring component collects the tire pressure monitoring data, and the tire pressure monitoring component transmits the tire pressure monitoring data to the Bluetooth low energy host via the Bluetooth antenna.

[0061] Specifically, the tire pressure monitoring component transmits tire pressure monitoring data to the Bluetooth low energy host via the Bluetooth antenna. In the specific embodiment of the present application, the tire pressure monitoring data includes but is not limited to temperature, pressure, etc.

[0062] In order to implement the tire pressure monitoring method of the above embodiment, the present application also provides a tire pressure monitoring device. Figure 8 , Figure 8 It is a structural schematic diagram of an embodiment of a tire pressure monitoring device provided in the present application.

[0063] like Figure 8 As shown, the tire pressure monitoring device 600 of this embodiment includes a processor 61 , a memory 62 , an input / output device 63 , and a bus 64 .

[0064] The processor 61 , the memory 62 , and the input / output device 63 are respectively connected to the bus 64 . The memory 62 stores a computer program. The processor 61 is used to execute the computer program to implement the tire pressure monitoring method of the above embodiment.

[0065] In this embodiment, the processor 61 may also be referred to as a CPU (Central Processing Unit). The processor 61 may be an integrated circuit chip having the ability to process signals. The processor 61 may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The processor 61 may also be a GPU (Graphics Processing Unit), also known as a display core, a visual processor, or a display chip, which is a microprocessor that is specifically used for image computing on computers, workstations, game consoles, and some mobile devices (such as tablet computers, smart phones, etc.). The purpose of the GPU is to convert and drive the display information required by the computer system, and to provide a line scan signal to the display to control the correct display of the display. It is an important component that connects the display and the computer motherboard. As an important component of the computer host, the graphics card is responsible for outputting display graphics. The general-purpose processor may be a microprocessor or the processor 61 may also be any conventional processor, etc.

[0066] The present application also provides a computer storage medium, such as Fig. 9 As shown, the computer storage medium 700 is used to store a computer program 71. When the computer program 71 is executed by a processor, it is used to implement the method described in the embodiment of the tire pressure monitoring method of the present application.

[0067] The method involved in the embodiment of the tire pressure monitoring method of the present application, when implemented in the form of a software functional unit and sold or used as an independent product, can be stored in a device, such as a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program code.

[0068] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A tire pressure monitoring system based on Bluetooth low energy, characterized in that: The tire pressure monitoring system comprises: Tire pressure monitoring components; A Bluetooth low energy host, wherein the tire pressure monitoring component and the Bluetooth low energy host transmit tire pressure monitoring data via a Bluetooth antenna; The battery module of the tire pressure monitoring assembly collects radio wave energy through the Bluetooth antenna for charging.

2. The tire pressure monitoring system according to claim 1, characterized in that: The tire pressure monitoring component includes a power detection circuit and a directional coupler, one end of the directional coupler is connected to the Bluetooth antenna, and the other end of the directional coupler is connected to the power detection circuit; one end of the power detection circuit is connected to the battery module, and the power detection circuit is used to convert the radio wave energy collected by the Bluetooth antenna into voltage.

3. The tire pressure monitoring system according to claim 2, characterized in that: The power detection circuit comprises: A first inductor, one end of which is grounded, and the other end of which is connected to a coupling end of the directional coupler; a second inductor, one end of which is connected to the coupling end of the directional coupler, and the other end of which is connected to the input end of the diode; A capacitor, one end of which is connected to the output end of the diode, and the other end of which is grounded; A first resistor, one end of the first resistor is connected to the output end of the diode, and the other end of the first resistor is grounded; A second resistor, one end of the second resistor is connected to the isolation end of the directional coupler, and the other end of the second resistor is grounded; The output end of the diode is connected to the output end of the power detection circuit.

4. The tire pressure monitoring system according to claim 2, characterized in that: The tire pressure monitoring component also includes: a filter and a Bluetooth chip; One end of the filter is connected to the directional coupler, and the other end is connected to the Bluetooth chip; the Bluetooth chip is connected to the battery module and is used to charge the battery module with the transceiver energy.

5. The tire pressure monitoring system according to claim 1, characterized in that: The tire pressure monitoring component also includes a temperature detection circuit and a Bluetooth chip; The temperature detection circuit is connected to the battery module, and the battery module is connected to the Bluetooth chip. The temperature detection circuit is used to charge the battery module to convert thermal energy into electrical energy for the battery module to transmit to the Bluetooth chip to realize tire pressure monitoring.

6. The tire pressure monitoring system according to claim 5, characterized in that: The temperature detection circuit comprises: a third resistor, one end of which is connected to the battery module, and the other end of which is connected to the output end of the temperature detection circuit; a fourth resistor, one end of the fourth resistor being connected to the third resistor and the other end being grounded; A thermistor, one end of which is connected to the third resistor, and the other end of which is grounded.

7. A tire pressure monitoring method, characterized in that: The tire pressure monitoring method is applied to the tire pressure monitoring system according to any one of claims 1 to 6, and the tire pressure monitoring method comprises: In response to the vehicle being in a driving state, the temperature detection circuit charges the battery module of the tire pressure monitoring component to convert thermal energy into electrical energy for the battery module to transmit to the Bluetooth chip to achieve tire pressure monitoring.

8. The tire pressure monitoring method according to claim 7, characterized in that: The tire pressure monitoring method further includes: In response to the vehicle being in a parked state, the tire pressure monitoring assembly collects radio wave energy; The tire pressure monitoring component converts the radio wave energy into electrical quantity to charge the battery module of the tire pressure monitoring component.

9. The tire pressure monitoring method according to claim 7, characterized in that: The tire pressure monitoring method further includes: In response to the vehicle being in a driving state, the tire pressure monitoring component collects tire pressure monitoring data; The tire pressure monitoring component transmits the tire pressure monitoring data to the Bluetooth low energy host via a Bluetooth antenna; The Bluetooth low energy host generates tire pressure monitoring information based on the tire pressure monitoring data.

10. A tire pressure monitoring device, characterized in that: The tire pressure monitoring device includes a memory and a processor coupled to the memory; The memory is used to store program data, and the processor is used to execute the program data to implement the tire pressure monitoring method as described in any one of claims 7 to 9.

11. A computer storage medium, characterized in that: The computer storage medium is used to store program data, and when the program data is executed by a computer, it is used to implement the tire pressure monitoring method as described in any one of claims 7 to 9.

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