Bluetooth-based tire pressure monitoring system, method, electronic device, and storage medium

CN116852919BActive Publication Date: 2026-08-11SHENZHEN GOODIX TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-06
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0003]然而,由于持续不间断的进行胎压检测,导致传统检测系统存在能耗高、成本高的缺点

Benefits of technology

[0017]在本发明实施例的方案中,蓝牙定位单元获取所述蓝牙定位单元的位置信息并根据所述位置信息生成唤醒指令,唤醒控制单元根据所述唤醒指令控制所述处理单元对所述胎压传感器信息进行处理并生成胎压信息;处理单元通信连接分别与所述胎压传感器模块和所述射频单元通信连接,射频单元传输所述胎压信息。通过上述方式,基于位置信息唤醒处理单元进行胎压信息处理及传输,避免了处理单元持续工作造成的能耗高、成本高的问题,使得胎压检测效率高。

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Abstract

This invention provides a Bluetooth-based tire pressure monitoring system, method, electronic device, and storage medium. The Bluetooth-based tire pressure monitoring system of this application includes a Bluetooth module and a tire pressure sensor module. The Bluetooth module includes a Bluetooth positioning unit, a wake-up control unit, a processing unit, and a radio frequency unit. The tire pressure sensor module is used to acquire tire pressure sensor information. The Bluetooth positioning unit is used to acquire the location information of the Bluetooth positioning unit and generate a wake-up command based on the location information. The wake-up control unit is used to control the processing unit to process the tire pressure sensor information and generate tire pressure information according to the wake-up command. The radio frequency unit is used to transmit the tire pressure information. Through this method, the processing unit is woken up based on location information to process and transmit tire pressure information, avoiding the high energy consumption and high cost caused by continuous operation of the processing unit, and improving the efficiency of tire pressure detection.
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Description

Technical Field

[0001] The present invention relates to the field of electronic technology, and in particular to a Bluetooth-based tire pressure monitoring system, method, electronic device and storage medium. Background Technology

[0002] Traditional tire pressure monitoring systems are based on RF433 / 315 communication and typically include a tire pressure sensor, a temperature sensor, an accelerometer, and a processor. This system can continuously monitor tire pressure.

[0003] However, due to the continuous tire pressure monitoring, traditional monitoring systems suffer from high energy consumption and high cost. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a Bluetooth-based tire pressure monitoring system, method, electronic device, and storage medium to at least partially solve the above-mentioned problems.

[0005] According to a first aspect of the present invention, a Bluetooth-based tire pressure monitoring system is provided, comprising: a Bluetooth module, a tire pressure sensor module, and a power management module. The Bluetooth module includes a Bluetooth positioning unit, a wake-up control unit, a processing unit, and a radio frequency unit. The tire pressure sensor module is used to acquire tire pressure sensor information, and the power management module is used to supply power to the Bluetooth module and the tire pressure sensor module.

[0006] The Bluetooth positioning unit is communicatively connected to the wake-up control unit and the processing unit respectively. The Bluetooth positioning unit is used to obtain the location information of the Bluetooth positioning unit and generate a wake-up command based on the location information. The wake-up control unit is used to control the processing unit to process the tire pressure sensor information and generate tire pressure information based on the wake-up command.

[0007] The processing unit is communicatively connected to the tire pressure sensor module and the radio frequency unit, respectively, and the radio frequency unit is used to transmit the tire pressure information.

[0008] In another implementation of the present invention, the tire pressure sensor module includes: a capacitive pressure detection unit and an analog front end, wherein the analog front end is communicatively connected to the capacitive pressure detection unit; the capacitive pressure detection unit is used to acquire pressure information, and the analog front end is used to process the pressure information to obtain the tire pressure sensor information.

[0009] In another implementation of the present invention, the tire pressure sensor module further includes: a temperature detection unit, which is communicatively connected to the capacitive pressure detection unit; the temperature detection unit is used to acquire temperature data from the capacitive pressure detection unit; and the analog front end is used to process the pressure information and the temperature data to obtain the tire pressure sensor information.

[0010] In another implementation of the present invention, the Bluetooth module further includes a Bluetooth antenna, which is communicatively connected to the radio frequency unit, and is used to transmit and receive electromagnetic waves containing the tire pressure information.

[0011] In another implementation of the present invention, the power management module includes: a power supply, a power supply voltage detection unit, and a power supply unit; the power supply voltage detection unit is used to acquire the power supply voltage; the power supply unit is used to process the power supply voltage and supply power.

[0012] In another implementation of the present invention, the Bluetooth module further includes a storage unit for caching information from the processing unit.

[0013] In another implementation of the present invention, the Bluetooth module further includes a clock unit for providing clock signals to the Bluetooth positioning unit, the wake-up control unit, the processing unit, and the radio frequency unit.

[0014] According to a second aspect of the present invention, a Bluetooth-based tire pressure monitoring method is provided, comprising: a tire pressure sensor module acquiring tire pressure sensor information; a Bluetooth positioning unit acquiring location information of the Bluetooth positioning unit and generating a wake-up command based on the location information; a wake-up control unit processing the tire pressure sensor information according to the wake-up command; and a radio frequency unit transmitting the tire pressure information.

[0015] According to a third aspect of the present invention, an electronic device is provided, comprising: a processor, a memory, a communication interface, and a communication bus, wherein the processor, the memory, and the communication interface communicate with each other via the communication bus; the memory is used to store at least one executable instruction, which causes the processor to perform an operation corresponding to the method described in the second aspect.

[0016] According to a fourth aspect of the present invention, a computer storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the method described in the second aspect.

[0017] In this embodiment of the invention, the Bluetooth positioning unit acquires the location information of the Bluetooth positioning unit and generates a wake-up command based on the location information. The wake-up control unit controls the processing unit to process the tire pressure sensor information and generate tire pressure information according to the wake-up command. The processing unit is communicatively connected to both the tire pressure sensor module and the radio frequency unit, and the radio frequency unit transmits the tire pressure information. Through this method, the processing unit is woken up based on location information to process and transmit tire pressure information, avoiding the high energy consumption and high cost caused by continuous operation of the processing unit, thus achieving high tire pressure detection efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic block diagram of a Bluetooth-based tire pressure monitoring system according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic block diagram of a Bluetooth-based tire pressure monitoring system according to another embodiment of the present invention.

[0021] Figure 3 This is a schematic block diagram of a Bluetooth-based tire pressure monitoring system according to another embodiment of the present invention.

[0022] Figure 4 This is a schematic block diagram of a Bluetooth-based tire pressure monitoring method according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and thoroughly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art should fall within the protection scope of the present invention.

[0025] It should be understood that the terms "first," "second," and "third," etc., in the claims, specification, and drawings of this disclosure are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "including" as used in the specification and claims of this disclosure indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets thereof.

[0026] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0027] Figure 1 This is a schematic block diagram of a Bluetooth-based tire pressure monitoring system according to an embodiment of the present invention. The solutions of this embodiment can be applied to electronic devices, including but not limited to: terminal devices with communication functions or electronic devices with data processing capabilities.

[0028] The Bluetooth-based tire pressure monitoring system of this embodiment includes: a Bluetooth module, a tire pressure sensor module, and a power management module. The Bluetooth module includes a Bluetooth positioning unit, a wake-up control unit, a processing unit, and a radio frequency unit. The tire pressure sensor module is used to acquire tire pressure sensor information. The power management module is used to supply power to the Bluetooth module and the tire pressure sensor module.

[0029] It should be noted that the Bluetooth positioning unit here utilizes the Bluetooth protocol and supports Angle-of-Arrival (AOA) or Angle-of-Departure (AoD) ranging functions. The Bluetooth positioning unit can determine whether the vehicle containing the Bluetooth module is moving; if it is moving, the processing unit is activated. Additionally, the processing unit can be activated if a preset speed threshold is exceeded. The Bluetooth positioning unit can locate and calibrate the tires where the Bluetooth module is located after replacement, operates continuously, and consumes less than 1µA of power.

[0030] It should be noted that AoD requires a multi-antenna array to be set up at the transmitting end. The Bluetooth module of this application has limited space at the transmitting end, and the antenna matrix can only be set up at the receiving end. Therefore, as an optional embodiment, the Bluetooth positioning unit adopts AoA mode (receiving end multi-antenna array mode).

[0031] The Bluetooth positioning unit is communicatively connected to the wake-up control unit and the processing unit. The Bluetooth positioning unit is used to acquire the location information of the Bluetooth positioning unit and generate a wake-up command based on the location information. The wake-up control unit is used to control the processing unit to process the tire pressure sensor information and generate tire pressure information based on the wake-up command.

[0032] It should be noted that, normally only the Bluetooth positioning unit and tire pressure sensor module are always on, while the processing unit and radio frequency unit are off by default. The wake-up mode is activated by receiving information from the Bluetooth positioning unit. After activating wake-up mode, the processing unit and radio frequency unit enter sleep mode and can send data at the following set intervals:

[0033] Mode 1: Parking enabled, for example, sending a message every 120 seconds;

[0034] Mode 2: Enable movement, for example, send once every 60 seconds.

[0035] The Bluetooth positioning unit here reduces costs by replacing the traditional Z / XZ axis accelerometer.

[0036] It should be noted that the processing unit here can have the following parameters:

[0037] Supports stand-alone AoA mode and barometer normally open mode, and supports AoA startup processing unit and radio frequency unit;

[0038] Supports external interrupt restart, such as when the temperature is too high, requiring an interruption and restart of the processing unit and RF unit;

[0039] Includes RAM and ROM;

[0040] Optional, the transmission rate is 1Mb / s or 2Mb / s;

[0041] Supports automatic calibration, including tire pressure ID and tire position calibration after tire replacement;

[0042] Supports boot handshake connection and determines tire position via ID;

[0043] It supports synchronizing stored content upon startup, such as providing an immediate alarm in case of air leakage while the device is parked.

[0044] Supports SPI / I2C and other communication methods;

[0045] Supports independent AoA positioning normally open, current ~250nA;

[0046] Supports external interruption and internal AoA wake-up of Bluetooth module operation; sleep mode ~250nA, transmission ~5mA;

[0047] Supports a maximum transmission rate of 2Mb / s;

[0048] Supports tire alignment and calibration;

[0049] Supports enabling information synchronization.

[0050] The processing unit here can function as a Bluetooth key radio frequency receiver to enable key positioning, and it can also analyze wheel hub sounds to further collect data to identify abnormal noises from the wheel hub and chassis, and issue warnings.

[0051] The processing unit is communicatively connected to the tire pressure sensor module and the radio frequency unit, respectively, and the radio frequency unit is used to transmit the tire pressure information.

[0052] It should be noted that the RF unit here can have the following parameters:

[0053] Sensitivity -96dBm;

[0054] Power consumption in sleep mode is less than or equal to 250nA;

[0055] The radio frequency current is less than 5mA (2.4Gb, 0dBm);

[0056] Transmission rate is 1Mb / s or 2Mb / s;

[0057] Supports independent AoA mode.

[0058] In this embodiment of the invention, the Bluetooth positioning unit acquires the location information of the Bluetooth positioning unit and generates a wake-up command based on the location information. The wake-up control unit controls the processing unit to process the tire pressure sensor information and generate tire pressure information according to the wake-up command. The processing unit is communicatively connected to both the tire pressure sensor module and the radio frequency unit, and the radio frequency unit transmits the tire pressure information. By using this method, the processing unit is woken up based on location information to process and transmit tire pressure information, avoiding the high energy consumption and cost problems caused by continuous operation of the processing unit, and improving the efficiency of tire pressure detection.

[0059] In one possible implementation, such as Figure 2 As shown, the tire pressure sensor module includes: a capacitive pressure detection unit and an analog front end, wherein the analog front end is communicatively connected to the capacitive pressure detection unit; the capacitive pressure detection unit is used to acquire pressure information, and the analog front end is used to process the pressure information to obtain tire pressure sensor information.

[0060] It should be noted that the capacitive pressure detection unit is based on the design of a capacitive barometer, which improves accuracy by 30% compared to the traditional resistance barometer and reduces power consumption by 20%, thus offering the advantages of high accuracy and low power consumption.

[0061] A capacitive pressure sensing unit may include the following parameters:

[0062] Supports a measurement range of 0–900 kPa;

[0063] It incorporates a CMOS sensor, which is smaller in area compared to MEMS sensors;

[0064] Interface type: I2C; Tire pressure gauge size: <1*1mm;

[0065] Tire pressure gauge accuracy: "±1% FS@0~70℃, 260~340kpa, ±1.5% FS@-20~0℃, 70~85℃, 260~340kpa, ±2.5% FS@-40~20℃, 85~125℃, 250~340kpa, <3%@0~70℃, 0~260kpa, 340kpa~700kpa, <5%@-20~0℃, 70~85℃, 0~260kpa, 340~700kpa";

[0066] Tire pressure gauge power consumption: "Sleep mode: ≤10nAh, Working mode: ≤250nAh".

[0067] The analog front end supports power consumption control for the capacitive pressure sensing unit and temperature compensation.

[0068] It should be noted that the analog front end may include a high-precision analog-to-digital converter (ADC) with micro-capacitance sensing, for example, an 8-bit analog-to-digital converter that supports external interfaces.

[0069] It should be noted that the analog front-end can have the following parameters:

[0070] Supports smoothing filtering and noise reduction;

[0071] Supports on-chip thermometers;

[0072] Supports temperature calibration and reduces temperature drift;

[0073] Detect power supply current or voltage;

[0074] It supports storing air pressure information when the Bluetooth module is not powered on, and synchronizes it to the Bluetooth module immediately after the Bluetooth module is powered on.

[0075] It should be noted that, as Figure 3 As shown, a capacitive pressure sensing unit can be implemented using an exemplary capacitive sensing circuit.

[0076] Figure 3The CAPDAC in the circuit is a 7-bit digital-to-analog converter that can generate an inverted common-mode signal and subtract it before the integrator circuit to achieve Cancel. The tire pressure gauge Cx is driven by a 32k square wave (±VDD) input through EXC and outputs a differential-mode signal with a large DC component. The purpose of Cancel is to form a common-mode signal, subtract the DC output of Cx, increase the proportion of AC output, realize the modulation output of Cx, and thus obtain the pressure information (approximately calculated as Cx – CAPDAC(+)).

[0077] In one possible implementation, such as Figure 2 As shown, the tire pressure sensor module further includes: a temperature detection unit, which is communicatively connected to the capacitive pressure detection unit; the temperature detection unit is used to acquire the temperature data of the capacitive pressure detection unit; the analog front end is used to process the pressure information and the temperature data to obtain tire pressure sensor information.

[0078] In one possible implementation, such as Figure 2 As shown, the Bluetooth module further includes a Bluetooth antenna, which is communicatively connected to the radio frequency unit and is used to transmit and receive electromagnetic waves containing the tire pressure information.

[0079] In one possible implementation, such as Figure 2 As shown, the power management module includes: a power supply, a power supply voltage detection unit, and a power supply unit; the power supply voltage detection unit is used to acquire the power supply voltage; the power supply unit is used to process the power supply voltage and supply power.

[0080] In one possible implementation, such as Figure 2 As shown, the Bluetooth module further includes a storage unit for caching information from the processing unit.

[0081] In one possible implementation, such as Figure 2 As shown, the Bluetooth module further includes a clock unit for providing clock signals to the Bluetooth positioning unit, the wake-up control unit, the processing unit, and the radio frequency unit.

[0082] Figure 4 An exemplary flow diagram of a Bluetooth-based tire pressure monitoring method according to an embodiment of the present invention is shown. The Bluetooth-based tire pressure monitoring method of this embodiment includes:

[0083] S410: Tire pressure sensor module acquires tire pressure sensor information.

[0084] S420: The Bluetooth positioning unit obtains the location information of the Bluetooth positioning unit and generates a wake-up command based on the location information.

[0085] S430: The wake-up control unit processes the tire pressure sensor information according to the wake-up command.

[0086] S440: The radio frequency unit transmits the tire pressure information.

[0087] Reference Figure 5 The diagram shows a schematic of an electronic device according to another embodiment of the present invention. The specific embodiments of the present invention do not limit the specific implementation of the electronic device.

[0088] like Figure 5 As shown, the electronic device may include: a processor 502, a communications interface 504, a memory 506 storing a program 510, and a communications bus 508.

[0089] The processor, communication interface, and memory communicate with each other via a communication bus. The communication interface is used to communicate with other electronic devices or servers. The processor executes programs, specifically the steps described in the method embodiments above. Specifically, the program may include program code, which includes computer operation instructions.

[0090] The processor may be a CPU, an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention. The one or more processors included in a smart device may be of the same type, such as one or more CPUs; or they may be of different types, such as one or more CPUs and one or more ASICs.

[0091] Memory is used to store programs. Memory may include high-speed RAM, and may also include non-volatile memory, such as at least one disk drive.

[0092] Specifically, the program can be used to enable the processor to perform the following operations: acquire tire pressure sensor information; acquire the location information of the Bluetooth positioning unit and generate a wake-up command based on the location information; process the tire pressure sensor information according to the wake-up command; and transmit the tire pressure information.

[0093] The above embodiments are only used to illustrate the embodiments of the present invention and are not intended to limit the embodiments of the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of the present invention, and the patent protection scope of the embodiments of the present invention should be defined by the claims. The systems, devices, modules, or units described in the above embodiments can be implemented by computer chips or physical entities, or by products with certain functions.

[0094] For ease of description, the above apparatus is described by dividing it into various functional units. Of course, in implementing this invention, the functions of each unit can be implemented in one or more software and / or hardware components.

[0095] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0096] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0097] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0098] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0099] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, a network interface, and memory. Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0100] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0101] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0102] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0103] This invention can be described in the general context of computer-executable instructions, such as program modules, that are executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform specific transactions or implement specific abstract data types. This invention can also be practiced in distributed computing environments where transactions are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0104] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

Claims

1. A Bluetooth-based tire pressure monitoring system, comprising: The system includes a Bluetooth module, a tire pressure sensor module, and a power management module. The Bluetooth module includes a Bluetooth positioning unit, a wake-up control unit, a processing unit, and a radio frequency unit. The tire pressure sensor module is used to acquire tire pressure sensor information. The power management module is used to supply power to the Bluetooth module and the tire pressure sensor module. The Bluetooth positioning unit is communicatively connected to the wake-up control unit and the processing unit respectively. The Bluetooth positioning unit is used to obtain the location information of the Bluetooth positioning unit and generate a wake-up command based on the location information. The wake-up control unit is used to control the processing unit to process the tire pressure sensor information and generate tire pressure information based on the wake-up command, and wake up the processing unit when the speed exceeds a preset speed threshold. The processing unit is communicatively connected to the tire pressure sensor module and the radio frequency unit, respectively, and the radio frequency unit is used to transmit the tire pressure information.

2. The system according to claim 1, wherein, The tire pressure sensor module includes: A capacitive pressure detection unit and an analog front end, wherein the analog front end is communicatively connected to the capacitive pressure detection unit; The capacitive pressure detection unit is used to acquire pressure information, and the analog front end is used to process the pressure information to obtain the tire pressure sensor information.

3. The system according to claim 2, wherein, The tire pressure sensor module also includes: A temperature detection unit, which is communicatively connected to the capacitive pressure detection unit; The temperature detection unit is used to acquire the temperature data of the capacitive pressure detection unit; The simulation front end is used to process the pressure information and the temperature data to obtain the tire pressure sensor information.

4. The system according to claim 3, wherein, The Bluetooth module also includes: A Bluetooth antenna is communicatively connected to the radio frequency unit and is used to transmit and receive electromagnetic waves containing the tire pressure information.

5. The system according to claim 4, wherein, The power management module includes: Power supply, power voltage detection unit and power supply unit; The power supply voltage detection unit is used to acquire the power supply voltage; The power supply unit is used to process the power supply voltage and supply power.

6. The system according to claim 5, wherein, The Bluetooth module also includes: A storage unit is used to cache the information of the processing unit.

7. The system according to claim 6, wherein, The Bluetooth module also includes: A clock unit is used to provide clock signals to the Bluetooth positioning unit, the wake-up control unit, the processing unit, and the radio frequency unit.

8. A Bluetooth-based tire pressure monitoring method, comprising: The tire pressure sensor module acquires tire pressure sensor information; The Bluetooth positioning unit acquires the location information of the Bluetooth positioning unit and generates a wake-up command based on the location information; The wake-up control unit processes the tire pressure sensor information according to the wake-up command, and wakes up the processing unit when the speed exceeds a preset speed threshold; The radio frequency unit transmits tire pressure information.

9. An electronic device, comprising: The processor, memory, communication interface, and communication bus are provided, wherein the processor, memory, and communication interface communicate with each other via the communication bus. The memory is used to store at least one executable instruction that causes the processor to perform the operation corresponding to the method as described in claim 8.

10. A computer storage medium having a computer program stored thereon, which, when executed by a processor, implements the method of claim 8.

Citation Information

Patent Citations

  • Key-free vehicle control system and method based on RSSI and AOA

    CN109466505A

  • Tire pressure monitoring module and tire positioning system and method

    CN113147277A

  • Tire pressure monitoring system

    CN201350806Y