Onboard tire pressure monitoring device and monitoring method

Abstract

The application relates to the technical field of tire pressure monitoring, in particular to an airborne tire pressure monitoring device and a monitoring method. In the scheme, the airborne tire pressure monitoring device is installed on the outside of the valve of an airplane tire, a reading device is used to superimpose a reading instruction on an alternating current, the reading device transmits the reading instruction and the alternating current to the airborne tire pressure monitoring device through a single-coil wireless transmission mode, and when collecting airplane tire pressure data and tire temperature data, multi-channel collection is realized. The reading device is provided with multiple channel signal measurement sensing processing units for collection, effectively overcoming the problems that the equipment is too large to be installed in the tire and the single-board card has a risk of tire pressure measurement failure, and increasing the reliability and the accuracy of data, facilitating equipment maintenance and replacement.

Description

Technical Field

[0001] This application relates to the field of aircraft tire pressure monitoring technology, and in particular to airborne tire pressure monitoring devices and monitoring methods. Background Technology

[0002] Aircraft tire pressure monitoring is the process of monitoring the inflation pressure inside the tires of an aircraft, issuing warnings for abnormal tire pressure, and continuously monitoring tire pressure can improve flight safety, extend tire life, and reduce the occurrence of underinflated tires.

[0003] In the early fleet, since tire pressure monitoring was not available, tire pressure had to be manually measured using a tire pressure gauge during routine maintenance. This had the following drawbacks:

[0004] 1. Because maintenance workers have to take measurements manually, the work efficiency is low.

[0005] 2. In actual operation, the inability to detect abnormal tire pressure in time will lead to accelerated tire wear and increased maintenance costs.

[0006] 3. Using a tire pressure gauge can lead to some problems, such as nitrogen loss when checking tire pressure, debris entering the valve stem during the check, and the valve stem becoming loose, causing it to fail to position correctly and lose tire pressure.

[0007] With the development of technology, real-time monitoring of aircraft tire pressure has been achieved using current technology. Existing real-time monitoring systems primarily use two methods to obtain tire pressure data: indirect and direct methods. The indirect method is based on wheel speed sensors. This system compares the speed differences between tires using the wheel speed sensors in the aircraft's ABS system to monitor tire pressure. However, the indirect method is inconvenient to use due to low measurement accuracy, large errors, and poor real-time performance. The most widely used direct method utilizes pressure sensors installed in each tire to directly measure and monitor the tire pressure. The system displays the pressure values ​​of each tire and has been applied in many aircraft models. However, most aircraft have no space inside the wheel wells for this method, making it impractical, and it is also inconvenient to maintain and results in high wear and tear. Summary of the Invention

[0008] To address or partially address the problems existing in related technologies, this application provides an airborne tire pressure monitoring device and method, which can effectively overcome the problems of low accuracy, large error, poor real-time performance, large size of the equipment used which cannot be installed inside the wheels, and inconvenient maintenance in the prior art for aircraft tire pressure monitoring.

[0009] The first aspect of this application provides an airborne tire pressure monitoring device, including a housing having a sealed cavity, a multi-channel signal sensing and processing unit and a single-coil wireless power supply and signal transmission unit disposed within the housing;

[0010] The sealed cavity is connected to the interior of the aircraft tire via the valve core of the tire.

[0011] The multi-channel signal sensing and processing units are stacked and installed on the outside of the valve of the aircraft tire. Each of the channel signal measurement and sensing processing units can collect the tire pressure data of the aircraft tire.

[0012] The single-coil wireless power supply and signal transmission unit is connected to each of the channel signal measurement and sensing processing units. After wirelessly connecting to the single-coil wireless power supply and signal transmission unit of the reading device, it powers the multiple channel signal measurement and sensing processing units and sends the tire pressure data collected by the multiple channel signal measurement and sensing processing units to the reading device. At the same time, it can receive the reading command sent by the reading device and send it to the multiple channel signal measurement and sensing processing units.

[0013] As one implementation of the first aspect, the channel signal measurement and sensing processing unit includes:

[0014] The pressure core unit is used to convert the collected tire pressure data into pressure electrical signals and send them to the pressure signal conditioning unit;

[0015] A pressure signal conditioning unit is electrically connected to the pressure core unit and is used to condition the pressure electrical signal converted by the pressure core unit into a stable pressure electrical signal.

[0016] The A / D conversion unit is electrically connected to the pressure signal conditioning unit and is used to convert the stable pressure electrical signal from analog to digital into a tire pressure digital signal that can be directly processed by the MCU unit.

[0017] The MCU unit, electrically connected to the A / D conversion unit, is used to linearize the tire pressure digital signal to obtain tire pressure data.

[0018] As one implementation of the first aspect, each of the channel signal measurement and sensing processing units is also used to monitor the tire temperature data of the aircraft tires.

[0019] As one implementation of the first aspect, the channel signal measurement and sensing processing unit further includes:

[0020] The temperature sensing unit is used to convert the collected temperature data into a tire temperature electrical signal and send it to the temperature signal conditioning unit.

[0021] A temperature signal conditioning unit is electrically connected to the temperature sensing unit and is used to condition the tire temperature electrical signal converted by the temperature sensing unit into a stable tire temperature electrical signal.

[0022] The other end of the temperature signal conditioning unit is electrically connected to the A / D conversion unit, which sends a stable tire temperature electrical signal to the A / D conversion unit and converts it into a tire temperature digital signal that the MCU unit can directly process.

[0023] The storage unit, electrically connected to the MCU unit, is used to store temperature compensation parameters;

[0024] The temperature compensation parameter is called when the MCU unit performs linearization processing on the tire temperature digital signal, and is used to perform temperature drift compensation processing on the tire temperature digital signal to obtain tire temperature data.

[0025] As one implementation of the first aspect, the single-coil wireless power supply and signal transmission unit specifically includes:

[0026] The first coil unit is wirelessly coupled to the reading device and is used to receive the AC current superimposed with the reading command sent by the reading device, and to send the received tire pressure data to the reading device.

[0027] The circuit conditioning unit, electrically connected to the first coil unit, is used to rectify, filter, and stabilize the AC current, and provide it to other modules inside the airborne tire pressure monitoring device.

[0028] The signal transmission drive unit is electrically connected to the circuit conditioning unit and is used to receive tire pressure data sent by the MCU unit in each channel signal measurement and sensing processing unit and send it to the first coil unit.

[0029] The signal receiving drive unit is electrically connected to the circuit conditioning unit and is used to receive the read command received by the first coil unit and send it to each of the channel signal measurement and sensing processing units.

[0030] The circuit conditioning unit, the signal transmission driving unit, and the signal reception driving unit are respectively connected to each channel signal measurement and sensing processing unit via leads.

[0031] As one implementation of the first aspect, the signal transmission driving unit is further configured to process the tire temperature data collected by each of the channel signal measurement and sensing processing units, and transmit it through the first coil unit.

[0032] A second aspect of this application provides a monitoring method for the aforementioned airborne tire pressure monitoring device, comprising:

[0033] The airborne tire pressure monitoring device receives the AC current of the superimposed reading command provided by the reading device through the single-coil wireless power supply and signal transmission unit, and performs demodulation processing on the AC current;

[0034] The demodulated read command is sent to each of the channel signal measurement and sensing processing units. After parsing the read command, the channel signal measurement and sensing processing unit controls the acquisition of tire pressure data and tire temperature data.

[0035] The single-coil wireless power supply and signal transmission unit receives tire pressure data and tire temperature data sent by each of the channel signal measurement and sensing processing units, and sends them to the reading device.

[0036] A third aspect of this application provides a reading device for the aforementioned airborne tire pressure monitoring device, the reading device specifically including: an airborne reading device and / or a handheld reading device;

[0037] The airborne monitoring device is used to monitor the tire pressure and temperature data of the aircraft tires in real time during aircraft operation.

[0038] The handheld reading device is used to read tire pressure and temperature data of the aircraft when the aircraft is on the ground or powered off.

[0039] As one implementation of the third aspect, when the reading device is specifically an onboard reading device, it specifically includes:

[0040] The airborne monitoring main control communication module is used for wireless communication with the host communication module.

[0041] The airborne monitoring main control module is electrically connected to the airborne monitoring main control communication module and is used to receive the read command sent by the host module, send the read instruction, and parse and extract the tire pressure data and tire temperature data sent by the airborne tire pressure monitoring device.

[0042] The power supply and conditioning module is electrically connected to the airborne monitoring main control module and is used to provide AC current and perform modulation.

[0043] The signal modulation and demodulation module is electrically connected to the power supply and conditioning module and is used to superimpose the reading command onto the alternating current to demodulate and restore the tire pressure data and tire temperature data of the airborne tire pressure monitoring device.

[0044] The power drive module is electrically connected to the signal modulation and demodulation module and is used to drive the airborne reading device to provide an AC current superimposed with the reading command to the primary of the transformer module.

[0045] The transformer module has a primary winding electrically connected to the power drive module and a secondary winding electrically connected to the second coil module, used to transmit the AC current sent by the drive onboard reading device to the second coil module.

[0046] The second coil module is electrically connected to the secondary winding of the transformer module and is used to send an AC current superimposed with a reading command to the airborne tire pressure monitoring device and to receive tire pressure data and tire temperature data from the airborne tire pressure monitoring device.

[0047] The second coil module of the airborne reading device is sleeved on the airborne tire pressure monitoring device. The primary winding of the transformer module is connected to the power drive module through a lead wire. The power supply and conditioning module, the signal modulation and demodulation module, the airborne monitoring main control module, the airborne monitoring main control communication module, and the power drive module are integrated into one unit, installed inside the wheel axle, and connected to the second coil module through the secondary winding of the transformer module.

[0048] The host communication module is used for wireless communication with the airborne monitoring main control communication module;

[0049] The host module is electrically connected to the host communication module and is used to send read commands through the host communication module, receive tire pressure data results and tire temperature data results and send them to the cockpit display module.

[0050] The cockpit display module is electrically connected to the host module and is used to receive and display the tire pressure data and tire temperature data sent by the host module.

[0051] The cockpit display module, main unit module, and main unit communication module are integrated into a single unit and installed inside the cockpit.

[0052] As one implementation of the third aspect, when the reading device is specifically a handheld reading device, it specifically includes:

[0053] The button module is used to control the MCU main control module to send read commands;

[0054] The MCU main control module is electrically connected to the button module and is used to receive reading commands sent by the buttons, control the display screen, drive the transmitting coil, and parse and extract tire pressure data and tire temperature data.

[0055] The power supply and conditioning module is electrically connected to the MCU main control module and is used to provide AC current and modulate it.

[0056] The signal modulation and demodulation module is electrically connected to the power supply and conditioning module. It is used to superimpose the reading command onto the AC current and demodulate and restore the tire pressure data and tire temperature data sent by the airborne tire pressure monitoring device.

[0057] The power drive module is electrically connected to the signal modulation and demodulation module and is used to drive the handheld reading device to provide an AC current superimposed with the reading command to the third coil module.

[0058] The third coil module is electrically connected to the power drive module and is used to send an AC current superimposed with a reading command to the airborne tire pressure monitoring device and receive tire pressure data and tire temperature data from the airborne tire pressure monitoring device.

[0059] The display module is electrically connected to the MCU main control module and is used to display the reading progress, tire pressure data, and tire temperature data.

[0060] The communication interface module is electrically connected to the MCU main control module and is used to connect to the host computer via serial communication to export the tire pressure data and tire temperature data processed by the MCU main control module to the host computer.

[0061] The technical solution provided in this application may include the following beneficial effects:

[0062] This application provides an airborne tire pressure monitoring device and method. The airborne tire pressure monitoring device consists of a sealed cavity housing, a single-coil wireless power supply and signal transmission unit, and multiple channel signal measurement and sensing processing units. The multiple channel signal measurement and sensing processing units are respectively connected to the single-coil wireless power supply and signal transmission unit and are disposed inside the cavity. During installation, the multiple channel signal measurement and sensing processing units are stacked and installed on the outside of the valve stem of the aircraft tire. The sealed cavity is connected to the inside of the tire through the valve core of the aircraft tire, thereby realizing the monitoring of aircraft tire pressure and tire temperature. In this application, a reading device superimposes the reading command onto an alternating current, and transmits the reading command and alternating current simultaneously to the airborne tire pressure monitoring device via single-coil wireless transmission. This effectively reduces the number of electrical connection wires and leads between the airborne tire pressure monitoring device and the aircraft. When collecting aircraft tire pressure and tire temperature data, multiple channel signal measurement and sensing processing units are used for acquisition, and the collected tire pressure and tire temperature data are processed and analyzed. This achieves redundant design for tire pressure measurement, effectively reducing the failure risk of single-board tire pressure measurement, increasing reliability and data accuracy. Furthermore, since the airborne tire pressure monitoring device is installed on the outside of the aircraft tire valve, it facilitates maintenance and replacement of the device, overcoming the problem of the large size of the device making it impossible to install inside the tire.

[0063] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0064] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0065] Figure 1 This is a schematic diagram of the structure of an airborne tire pressure monitoring device shown in an embodiment of this application;

[0066] Figure 2 This is a schematic diagram of the circuit connection structure of the airborne tire pressure monitoring device shown in the embodiments of this application;

[0067] Figure 3 This is a flowchart illustrating the operation of an airborne tire pressure monitoring device according to an embodiment of this application;

[0068] Figure 4 This is a structural diagram of the airborne reading device shown in the embodiments of this application;

[0069] Figure 5 This is a connection diagram of the airborne reading device shown in the embodiments of this application;

[0070] Figure 6 This is a flowchart illustrating the operation of an airborne reading device according to an embodiment of this application;

[0071] Figure 7 This is a structural diagram of a handheld reading device shown in an embodiment of this application;

[0072] Figure 8 This is a flowchart illustrating the workflow of a handheld reading device according to an embodiment of this application;

[0073] Symbol Explanation: 1-Channel signal measurement and sensing processing unit; 11-MCU unit; 12-Storage unit; 13-A / D conversion unit; 14-Temperature signal conditioning unit; 15-Pressure signal conditioning unit; 16-Temperature sensing unit; 17-Pressure core unit; 2-Single coil wireless power supply and signal transmission unit; 21-First coil unit; 22-Electromagnetic compatibility and protection unit; 23-Circuit conditioning unit; 24-Signal transmission drive unit; 25-Signal reception drive unit; 3-Airborne reading device; 31-Cockpit display module; 32-Main unit module; 33-Main unit communication module; 34-Airborne monitoring main control communication module; 35-Airborne monitoring main control module; 36-Power supply and conditioning module; 37-Signal modulation and demodulation module; 38-Power Drive module; 39-Second coil module; 40-Transformer module; 4-Handheld reading device; 41-Display module; 42-Button module; 43-Communication interface module; 44-MCU main control module; 45-Power supply and conditioning module; 46-Signal modulation and demodulation module; 47-Power drive module; 48-Third coil module; 5-Housing; 6-Sealed cavity; 7-Ventilation hole; 8-Sealing ring; 9-Airborne tire pressure monitoring device interface; 101-First data processing module; 102-Second data processing module; 103-Third data processing module; 104-First measurement module; 105-Second measurement module; 106-Third measurement module; 201-Power supply module; 202-Signal drive module; 301-Wheel hub; 302-Wheel axle. Detailed Implementation

[0074] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0075] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0076] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0077] In an embodiment of this application, an airborne tire pressure monitoring device is provided. The device includes a housing 5 having a sealed cavity 6, a multi-channel signal sensing and processing unit and a single-coil wireless power supply and signal transmission unit 2 disposed within the housing, and the sealed cavity 6 is connected to the interior of the tire through the valve core of the aircraft tire.

[0078] The specific structure of the airborne tire pressure monitoring device consists of Figure 1 As shown, the circuit connection structure is as follows Figure 2 As shown.

[0079] The single-coil wireless power supply and signal transmission unit 2 consists of a power supply module 201, a signal driving module 202 and a first coil unit 21. The power supply module 201 includes an electromagnetic compatibility and protection unit 22 and a circuit conditioning unit 23. The signal driving module 202 includes a signal transmission driving unit 24 and a signal reception driving unit 25.

[0080] Furthermore, the multi-channel signal sensing and processing unit is composed of multiple channel signal measurement and sensing processing units 1. In this embodiment, there are three such units 1, which are electrically connected to the first measurement module 104, the second measurement module 105, and the third measurement module 106 respectively by the first data processing module 101, the second data processing module 102, and the third data processing module 103. Each pair of these three units forms a three-channel signal measurement and sensing processing unit 1. The three data processing modules have the same internal structure, including an MCU unit 11, a storage unit 12, an A / D conversion unit 13, a temperature signal conditioning unit 14, and a pressure signal conditioning unit 15. The three measurement modules also have the same internal structure, including a temperature sensing unit 16 and a pressure core unit 17.

[0081] Multiple channel signal measurement and sensing processing units 1 are stacked and installed on the outside of the valve of the aircraft tire. Each channel signal measurement and sensing processing unit 1 can collect the tire pressure data of the aircraft tire.

[0082] The valve is installed on the aircraft wheel hub, and the pressure core unit 17 of each channel signal measurement and sensing processing unit 1 is installed in the sealed cavity 6.

[0083] The single-coil wireless power supply and signal transmission unit 2 is connected to each channel signal measurement and sensing processing unit 1. After wirelessly connecting with the single-coil wireless power supply and signal transmission unit 2 of the reading device, it supplies power to multiple channel signal measurement and sensing processing units 1 and sends the tire pressure data collected by multiple channel signal measurement and sensing processing units 1 to the reading device. At the same time, it can receive reading instructions sent by the reading device and send them to multiple channel signal measurement and sensing processing units 1.

[0084] The aircraft tire has an airborne tire pressure monitoring device interface 9 installed at the valve position. The housing 5 is screwed onto the airborne tire pressure monitoring device interface 9. A sealing ring 8 seals between the housing 5 and the airborne tire pressure monitoring device interface 9. After installation, the sealed cavity 6 inside the housing 5 is sealed. The sealed cavity 6 is connected to the valve core through the vent 7. The valve core is connected to the inside of the aircraft tire. The gas inside the tire fills the entire sealed cavity through the valve core. The multi-channel signal measurement and sensing processing unit 1 collects tire pressure data by collecting the air pressure inside the sealed cavity.

[0085] Furthermore, each channel signal measurement and sensing processing unit 1 is also used to monitor the tire temperature data of the aircraft tires, and the temperature sensing unit 16 of each channel signal measurement and sensing processing unit 1 is installed in the sealed cavity 6.

[0086] In this embodiment, the airborne tire pressure monitoring device includes a channel signal measurement and sensing processing unit 1, the specific structure of which is as follows: Figure 2 As shown, it includes:

[0087] The pressure core unit 17 is used to convert the collected tire pressure data into pressure electrical signals and send them to the pressure signal conditioning unit.

[0088] The temperature sensing unit 16 is used to convert the collected temperature data into a tire temperature electrical signal and send it to the temperature signal conditioning unit.

[0089] The pressure signal conditioning unit 15 is electrically connected to the pressure core unit 17 and is used to condition the pressure electrical signal converted by the pressure core unit 17 into a stable pressure electrical signal.

[0090] Temperature signal conditioning unit 14 is electrically connected to temperature sensing unit 16 and is used to condition the tire temperature electrical signal converted by temperature sensing unit 16 into a stable tire temperature electrical signal.

[0091] The temperature signal conditioning unit 14 and the pressure signal conditioning unit 15 respectively condition the pressure electrical signal and the tire temperature electrical signal through amplification and filtering. The amplification process enhances the signal amplitude, improves the signal resolution and detection sensitivity, and the filtering process effectively suppresses noise in the signal, improves the signal-to-noise ratio, and makes the signal clearer and more accurate. The above conditioning method adopted in this application significantly improves the signal quality and processability, providing strong support for subsequent data acquisition, processing and analysis.

[0092] The A / D conversion unit 13 is electrically connected to the pressure signal conditioning unit 15 and the temperature signal conditioning unit 14. It is used to convert the stable pressure electrical signal and tire temperature electrical signal into analog-to-digital signals, which can be directly processed by the MCU unit 11.

[0093] The MCU unit 11 is electrically connected to the A / D conversion unit 13 and is used to linearize the tire pressure digital signal and the tire temperature digital signal to obtain tire pressure data and tire temperature data.

[0094] The MCU unit 11 can also parse and respond to the reading command, control the acquisition of the control signal through the parsed reading command, and feed back the tire pressure data and tire temperature data to the reading device.

[0095] Storage unit 12 is electrically connected to the MCU unit and is used to store temperature compensation parameters.

[0096] The temperature compensation parameter is called when the MCU unit 11 performs linearization processing on the tire temperature digital signal, and is used to perform temperature drift compensation processing on the tire temperature digital signal to obtain tire temperature data.

[0097] Furthermore, the storage unit 12 also stores aircraft tire ID parameters. After the MCU unit 11 performs linearization processing on the tire pressure digital signal and the tire temperature digital signal, it calls the aircraft tire ID parameters to perform normalization processing on the tire pressure digital signal and the tire temperature digital signal respectively, to obtain tire pressure data and tire temperature data containing the aircraft tire ID parameters. The tire pressure data and tire temperature data obtained through this operation are easy to analyze by the reading device, and the tire condition of the specific aircraft tire can be directly determined.

[0098] In this embodiment of the application, the airborne tire pressure monitoring device further includes a single-coil wireless power supply and signal transmission unit 2, the specific structure of which is as follows: Figure 2 As shown, it includes:

[0099] The first coil unit 21 is wirelessly coupled to the reading device and is used to receive the AC current superimposed with the reading command sent by the reading device, and to send the received tire pressure data to the reading device.

[0100] The reading device sends an alternating current superimposed with the reading command through a coil. Structurally, the reading device coil and the first coil unit 21 form an air-core transformer. The alternating current superimposed with the reading command is transmitted through this transformer. During the transmission process, the Faraday principle of electromagnetic induction is used. The power supply module of the reading device provides alternating current to the reading device coil. The alternating current generates a changing magnetic field on the reading device coil. The magnetic field can pass through the first coil unit 21, thereby generating an alternating current in the first coil unit 21. After processing, the alternating current can be used to power other units.

[0101] The circuit conditioning unit 23 is electrically connected to the first coil unit 21 and is used to rectify, filter and stabilize the alternating current and provide it to other modules inside the airborne tire pressure monitoring device.

[0102] The first coil unit 21 is first electrically connected to the electromagnetic compatibility and protection unit 22, and the electromagnetic compatibility and protection unit 22 is then electrically connected to the circuit conditioning unit 23. The electromagnetic compatibility and protection unit 22 is used to receive the AC current transmitted from the first coil unit 21, and processes the AC current through multiple mechanisms such as isolation, overvoltage protection, and overcurrent protection to ensure that each unit inside the device works normally in a complex electromagnetic environment. After processing, the AC current is sent to the circuit conditioning unit 23.

[0103] Furthermore, the circuit conditioning unit 23 also has the function of demodulating the read command waveform from the AC current and sending it to the signal receiving and driving unit 25 after demodulating the read command waveform.

[0104] The signal transmission drive unit 24 is electrically connected to the circuit conditioning unit 23 and is used to receive the tire pressure data sent by the MCU unit 11 in the signal measurement and sensing processing unit 1 of each channel and send it to the first coil unit 21.

[0105] The signal transmission drive unit 24 is also used to process the tire temperature data collected by the signal measurement and sensing processing unit 1 of each channel and transmit it through the first coil unit 21.

[0106] Furthermore, before the signal transmission drive unit 24 sends the tire pressure data and tire temperature data to the first coil unit 21, the tire pressure data and tire temperature data are first converted and driven. The processed tire pressure data and tire temperature data are modulated and amplified by the circuit conditioning unit 23. After the data is modulated into a signal that can be transmitted through the first coil unit 21, it is then sent to the first coil unit 21.

[0107] The signal receiving drive unit 25 is electrically connected to the circuit conditioning unit 23 and is used to receive the reading command received by the first coil unit 21 and send it to the signal measurement and sensing processing device 1 for each channel.

[0108] The signal receiving and driving unit 25 receives the read instruction waveform transmitted from the circuit conditioning unit 23, converts and demodulates it, converts it into a digital instruction, and sends it to the MCU unit 11.

[0109] The circuit conditioning unit 23, the signal transmission driving unit 24, and the signal receiving driving unit 25 are respectively connected to each channel signal measurement and sensing processing unit 1 via leads.

[0110] Furthermore, the specific connection methods of each module of the airborne tire pressure monitoring system are as follows: Figure 3 As shown.

[0111] This embodiment provides an airborne tire pressure monitoring device that is powered wirelessly and transmits reading commands superimposed on the AC current, effectively reducing the electrical connection lines between the monitoring device and the reading device. Multiple channel signal measurement and sensing processing units are set up to collect tire pressure and tire temperature data, achieving redundant design for measuring tire pressure and temperature, reducing the failure risk of single-board tire pressure measurement, increasing reliability, and improving data accuracy. Furthermore, since the airborne tire pressure monitoring device is installed on the outside of the aircraft tire valve, it facilitates maintenance, repair, and replacement.

[0112] In this embodiment of the application, a monitoring method for an airborne tire pressure monitoring device is provided, the specific steps of which are as follows: Figure 3 As shown, it includes:

[0113] S11: The airborne tire pressure monitoring device receives the AC current of the superimposed reading command provided by the reading device through the single-coil wireless power supply and signal transmission unit 2, and performs demodulation processing on the AC current.

[0114] Furthermore, step S11 enables the airborne tire pressure monitoring device to receive the AC current and reading command sent by the reading device. The specific process is as follows:

[0115] S111: In the single-coil wireless power supply and signal transmission unit 2, AC current is provided by the receiving and reading device through the first coil unit 21.

[0116] S112: The electromagnetic compatibility and protection unit 22 provides isolation, overvoltage protection, and overcurrent protection for AC current.

[0117] S113: The processed AC current is rectified, filtered and regulated by the circuit conditioning unit 23, and then supplied to other modules inside the airborne tire pressure monitoring device so that the other modules can work normally.

[0118] S12: The demodulated read command is sent to each channel signal measurement and sensing processing unit 1. After parsing the read command, the channel signal measurement and sensing processing unit 1 controls the acquisition of tire pressure data and tire temperature data.

[0119] Furthermore, step S12 controls the onboard tire pressure monitoring device to collect tire pressure and tire temperature data. The specific process is as follows:

[0120] S121: The read command superimposed on the AC power is demodulated by the signal receiving drive unit 25 and sent to the MCU unit 11.

[0121] S122: After parsing the read instruction, the MCU unit 11 controls the pressure core unit 17 and the temperature sensing unit 16 to respectively detect the pressure electrical signal and the tire temperature electrical signal.

[0122] S123: After the acquisition is completed, the pressure electrical signal and the tire temperature electrical signal are sent to the pressure signal conditioning unit 15 and the temperature signal conditioning unit 14 respectively for amplification and filtering.

[0123] S124: The A / D conversion unit 13 converts the amplified and filtered pressure electrical signal and tire temperature electrical signal into analog-to-digital signals that can be directly processed by the MCU unit 11.

[0124] S125: The converted tire pressure digital signal and tire temperature digital signal are sent to MCU unit 11. MCU unit 11 calls the temperature compensation parameters and aircraft tire ID parameters stored in storage unit 12, and performs calibration processing on the data through linearization processing, temperature drift compensation, and normalization processing to obtain tire pressure data and tire temperature data.

[0125] S13: The single-coil wireless power supply and signal transmission unit 2 receives the tire pressure data and tire temperature data sent by the signal measurement and sensing processing unit 1 of each channel, and sends them to the reading device.

[0126] Furthermore, step S13 enables the onboard tire pressure monitoring device to send tire pressure data and tire temperature data to the reading device. The specific process is as follows:

[0127] S131: The signal transmission drive unit 24 receives the tire pressure data and tire temperature data processed by the MCU unit 11 in the signal measurement and sensing processing unit 1 of each channel, and performs conversion, driving, modulation and amplification processing on the tire pressure data and temperature data.

[0128] S132: The processed tire pressure data and tire temperature data are sent to the first coil unit 21, and the first coil unit 21 sends the tire pressure data and tire temperature data to the reading device.

[0129] This embodiment provides a data acquisition method for an airborne tire pressure monitoring device. By sending read commands to multiple channel signal measurement and sensing processing units 1 for parsing, and after each channel signal measurement and sensing processing unit 1 completes the acquisition of tire pressure and tire temperature data according to the read commands, the acquired data is uniformly sent to a signal transmission drive unit 24. The signal transmission drive unit 24 then sends the data acquired by the multiple channel signal measurement and sensing processing units 1 together to a first coil unit 21. The first coil unit 21 then sends the data to the reading device. In this process, this embodiment achieves redundant design for measuring tire pressure and tire temperature by acquiring tire pressure and tire temperature data through multiple channels, reducing the failure risk of single-board tire pressure measurement, increasing reliability, and improving data accuracy.

[0130] In order to read the tire pressure data and tire temperature data collected by the airborne tire pressure monitoring device, this application provides a reading device suitable for the airborne tire pressure monitoring device. The reading device specifically includes: an airborne reading device 3 and a handheld reading device 4.

[0131] Among them, the airborne reading device 3 is used to monitor the tire pressure and tire temperature data of the aircraft in real time while the aircraft is in operation.

[0132] The handheld reading device 4 is used to read tire pressure and temperature data of the aircraft when the aircraft is on the ground or powered off.

[0133] Furthermore, the airborne reading device 3 and the handheld reading device do not work simultaneously.

[0134] As one implementation of this application, when the reading device is specifically an airborne reading device 3, the specific structure is as follows: Figure 4 As shown, it includes:

[0135] The airborne monitoring main control communication module 34 is used for wireless communication with the host communication module 33.

[0136] The airborne monitoring main control module 35 is electrically connected to the airborne monitoring main control communication module 34. It is used to receive the read command sent by the host module 32, send the read instruction, and parse and extract the tire pressure data and tire temperature data sent by the airborne tire pressure monitoring device.

[0137] The power supply and conditioning module 36 is electrically connected to the airborne monitoring main control module 35 and is used to provide AC current and modulate it.

[0138] The signal modulation and demodulation module 37 is electrically connected to the power supply and conditioning module 36 and is used to superimpose the reading command onto the AC current to demodulate and restore the tire pressure data and tire temperature data of the airborne tire pressure monitoring device.

[0139] The signal modulation and demodulation module 37 uses digital modulation to superimpose the read command onto the AC current. This is achieved by making the waveform of the read command change according to the waveform of the AC current. The read command is set as an adjustment signal, and the AC current is set as a carrier signal. By making the waveform of the read command change according to the waveform of the AC current, the superposition of the read command and the AC current is completed.

[0140] The power drive module 38 is electrically connected to the signal modulation and demodulation module 37 and is used to drive the airborne reading device 3 to provide an AC current superimposed with the reading command to the primary of the transformer module 40.

[0141] Transformer module 40, the primary of transformer module 40 is electrically connected to power drive module 38, and the secondary of transformer module 40 is electrically connected to second coil module 39, used to send the AC current sent by the drive on-board reading device 3 to second coil module 39.

[0142] The second coil module 39 is electrically connected to the secondary winding of the transformer module 40. It is used to send an AC current superimposed with a reading command to the airborne tire pressure monitoring device and to receive tire pressure data and tire temperature data from the airborne tire pressure monitoring device.

[0143] Among them, the second coil module 39 of the airborne reading device 3 is sleeved on the airborne tire pressure monitoring device, the primary of the transformer module 40 is connected to the power drive module 38 through the lead wire, and the power supply and conditioning module 36, the signal modulation and demodulation module 37, the airborne monitoring main control module 35, the airborne monitoring main control communication module 34 and the power drive module 38 are integrated into one unit, installed inside the wheel axle, and connected to the second coil module 39 through the secondary of the transformer module 40.

[0144] Furthermore, the onboard tire pressure monitoring device is installed at the valve position on the wheel hub 301 and can rotate with the wheel hub 301. The power drive module 38 drives the second coil module 39 through the transformer module 40 installed on the wheel axle. The transformer module 40 has two coils, primary and secondary. The primary coil of the transformer module 40 is fixed inside the wheel axle 302 and does not move. The secondary coil of the transformer module 40 is sleeved in the fixed position of the primary coil of the transformer module 40. The secondary coil of the transformer module 40 rotates with the wheel hub, realizing energy and signal transmission through the Faraday electromagnetic induction principle. Since the secondary coil of the transformer module 40 is sleeved in a ring-like form in the fixed position of the primary coil of the transformer module 40, the energy and signal transmission will not be interrupted during the rotation of the wheel hub 301. The specific installation method is as follows. Figure 5 As shown.

[0145] The host communication module 33 is used for wireless communication with the airborne monitoring main control communication module 34.

[0146] The host module 32 is electrically connected to the host communication module 33 and is used to send read commands through the host communication module 33, receive tire pressure data results and tire temperature data results and send them to the cockpit display module 31.

[0147] The cockpit display module 31 is electrically connected to the host module 32 and is used to receive and display the tire pressure data and tire temperature data sent by the host module 32.

[0148] The cockpit display module 31, the main unit module 32, and the main unit communication module 33 form a whole and are installed in the cockpit.

[0149] Furthermore, the process of the airborne reading device 3 reading tire pressure data and tire temperature data in this embodiment of the application is as follows: Figure 6 As shown, it specifically includes:

[0150] S21: After the host module 32 is turned on, it periodically sends read commands to the airborne monitoring main control module 35.

[0151] S22: The airborne monitoring main control module 35 drives the second coil module 39 to send AC current. After receiving the read command, the airborne monitoring main control module 35 provides an AC current superimposed with the read command to the primary of the transformer module 40 through the power drive module 38. The primary of the transformer module 40 sends the AC current to the secondary of the transformer module 40, and the secondary of the transformer module 40 sends the AC current to the second coil module 39, which then sends the AC current to the airborne tire pressure monitoring device.

[0152] S23: After the first coil unit 21 senses the AC current, it completes AC rectification, filtering and voltage regulation through the circuit conditioning unit 23, and provides the processed AC current to other units of the airborne tire pressure monitoring device so that they can work normally.

[0153] S24: The airborne monitoring main control module 35 sends the read command again. Through the power supply and conditioning module 36 and the signal modulation and demodulation module 37, the provided AC current is modulated, and the read command is superimposed on the AC current and sent to the airborne tire pressure monitoring device.

[0154] S25: After the airborne tire pressure monitoring device receives the AC current superimposed with the reading command, the MCU unit 11 parses the received command, controls the collection of tire pressure data and tire temperature data, performs signal modulation after the collection is completed, and sends it through the first coil unit 21.

[0155] S26: After receiving the data signal, the second coil module 39 of the airborne reading device 3 demodulates it through the signal modulation and demodulation module 37 to restore the tire pressure data and tire temperature data, and sends them to the airborne monitoring main control module 35.

[0156] The tire pressure data and tire temperature data demodulated and restored by the signal modulation and demodulation module 37 are the tire pressure data and tire temperature data collected by the three channel signal measurement and sensing processing units 1, respectively.

[0157] S27: The airborne monitoring main control module 35 parses and extracts the data, sends the data results to the host module 32, and the host module 32 sends the results to the cockpit display module 31 for display.

[0158] When the airborne monitoring main control module 35 analyzes and extracts data, it needs to comprehensively process the tire pressure data and tire temperature data collected by the three channel signal measurement and sensing processing units 1 respectively, calculate the average value of the three data, and calculate the final accurate tire pressure data and tire temperature data.

[0159] As another implementation of this application, when the reading device is specifically a handheld reading device 4, the specific structure is as follows: Figure 7 As shown, it includes:

[0160] The button module 42 is used to control the MCU main control module to send read commands.

[0161] The MCU main control module 44 is electrically connected to the button module 42 and is used to receive the read command sent by the button module 42, control the display screen, drive the transmitting coil, and parse and extract tire pressure data and tire temperature data.

[0162] The power supply and conditioning module 45 is electrically connected to the MCU main control module 44 and is used to provide AC current and perform modulation.

[0163] The signal modulation and demodulation module 46 is electrically connected to the power supply and conditioning module 45. It is used to superimpose the reading command onto the AC current and demodulate and restore the tire pressure data and tire temperature data sent by the airborne tire pressure monitoring device.

[0164] The power drive module 47 is electrically connected to the signal modulation and demodulation module 46 and is used to drive the handheld reading device 4 to provide an AC current superimposed with the reading command to the third coil module 48.

[0165] The third coil module 48 is electrically connected to the power drive module 47 and is used to send an AC current superimposed with a reading command to the airborne tire pressure monitoring device and to receive tire pressure data and tire temperature data from the airborne tire pressure monitoring device.

[0166] The display module 41 is electrically connected to the MCU main control module 44 and is used to display the reading progress, tire pressure data, and tire temperature data.

[0167] The communication interface module 43 is electrically connected to the MCU main control module 44 and is used to connect to the host computer via serial communication to export the tire pressure data and tire temperature data processed by the MCU main control module to the host computer.

[0168] Furthermore, the process of the handheld reading device 4 reading tire pressure data and tire temperature data in this embodiment of the application is as follows: Figure 8 As shown, it specifically includes:

[0169] S31: The operator issues a read command through the button module 42. After receiving the command, the MCU main control module 44 displays the read progress on the display module 41 and drives the coil to send AC current of a specific frequency.

[0170] S32: After the first coil unit 21 senses the AC current, it completes AC rectification, filtering and voltage regulation through the circuit conditioning unit 23, and provides the processed AC current to other units of the airborne tire pressure monitoring device so that they can work normally.

[0171] S33: The MCU main control module 44 of the handheld reading device sends a reading command again. Through the power supply and conditioning module 45 and the signal modulation and demodulation module 46, the provided AC current is modulated, and the reading command is superimposed on the AC current signal and sent to the airborne tire pressure monitoring device.

[0172] S34: After receiving the AC current, the first coil unit 21 converts and demodulates the superimposed instruction through the signal receiving and driving unit 25, and restores the read instruction to the MCU unit 11.

[0173] S35: The MCU unit 11 parses the received instructions, controls the acquisition of tire pressure data and tire temperature data, performs signal modulation after acquisition, and sends it through the first coil unit 21.

[0174] S36: After receiving the data signal, the third coil module 48 demodulates it through the signal modulation and demodulation module 46 to restore the tire pressure data and tire temperature data, and sends them to the MCU main control module 44.

[0175] The tire pressure data and tire temperature data demodulated and restored by the signal modulation and demodulation module 46 are the tire pressure data and tire temperature data collected by the three channel signal measurement and sensing processing units 1, respectively.

[0176] S37: The MCU main control module 44 parses and extracts the data, and sends the data results to the display module 41 for display.

[0177] When the MCU main control module 44 analyzes and extracts the data, it needs to comprehensively process the tire pressure data and tire temperature data collected by the three channel signal measurement and sensing processing units 1 respectively, calculate the average value of the three data, and calculate the final accurate tire pressure data and tire temperature data.

[0178] The communication interface module 43 of the handheld reading device 4 can be connected to the host computer via a wire to import the data results stored in the handheld reading device to the host computer, and the data results are stored in the MCU main control module 44.

[0179] This embodiment provides two devices and methods for controlling and reading data collected by airborne tire pressure monitoring equipment. When the aircraft is in operation, the airborne reading device can read tire pressure and tire temperature data in real time, reflecting the tire status in real time. When the aircraft is on the ground or powered off, a handheld reading device can be used. Operators can directly read the tire pressure and tire temperature data of the aircraft tires through the handheld reading device without powering on or starting the aircraft, which simplifies the process of reading tire status data and improves convenience. At the same time, the handheld reading device can also store the read tire status data and upload it to the host computer through the communication interface module, which facilitates the uploading and management of tire status data.

[0180] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An on-board tire pressure monitoring device, characterized by, The device comprises a shell with a sealed cavity, a multi-channel signal processing unit arranged in the shell, and a single-coil wireless power supply receiving and signal transmission unit; The sealed cavity is connected with the inside of the tire through a valve core of the aircraft tire; The channel signal measurement and induction processing units are stacked and arranged outside the valve of the aircraft tire, and each channel signal measurement and induction processing unit can collect the tire pressure data of the aircraft tire; The valve is arranged on the aircraft hub, the pressure core unit of each channel signal measurement and induction processing unit is arranged in the sealed cavity, the valve core is connected with the inside of the aircraft tire, the gas in the tire fills the entire sealed cavity through the valve core, and the multiple channel signal measurement and induction processing units collect the tire pressure data by collecting the air pressure in the sealed cavity; Each channel signal measurement and induction processing unit is also used for monitoring the tire temperature data of the aircraft tire, and the temperature sensing unit of each channel signal measurement and induction processing unit is arranged in the sealed cavity; The single-coil wireless power supply and signal transmission unit specifically comprises: A first coil unit is wirelessly coupled with a reading device, used for receiving an alternating current provided by the reading device and superimposed with a reading instruction, and sending the received tire pressure data to the reading device; A circuit conditioning unit is electrically connected with the first coil unit, used for rectifying, filtering and stabilizing the alternating current, and providing other modules inside the on-board tire pressure monitoring device; A signal sending driving unit is electrically connected with the circuit conditioning unit, used for receiving the tire pressure data sent by the MCU unit in each channel signal measurement and induction processing unit, and sending to the first coil unit; A signal receiving driving unit is electrically connected with the circuit conditioning unit, used for receiving the reading instruction received by the first coil unit, and sending to each channel signal measurement and induction processing unit; The single-coil wireless power supply and signal transmission unit is connected with each channel signal measurement and induction processing unit, used for wirelessly connecting with the single-coil wireless power supply and signal transmission unit of the reading device, supplying power for the multiple channel signal measurement and induction processing units, sending the tire pressure data collected by the multiple channel signal measurement and induction processing units to the reading device, receiving the reading instruction sent by the reading device and sending to the multiple channel signal measurement and induction processing units; The on-board tire pressure monitoring device receives the alternating current provided by the reading device and superimposed with the reading instruction through the single-coil wireless power supply and signal transmission unit, and demodulates the alternating current to demodulate the reading instruction; The reading instruction is superimposed on the alternating current in a digital modulation mode, the reading instruction is set as an adjustment signal, the alternating current is set as a carrier signal, the waveform of the reading instruction is changed according to the waveform of the alternating current, and the superposition of the reading instruction and the alternating current is completed.

2. The on-board tire pressure monitoring apparatus according to claim 1, characterized by The channel signal measurement and induction processing unit comprises: A pressure core unit is used for converting the collected tire pressure data into a pressure electric signal and sending to a pressure signal conditioning unit; The pressure signal conditioning unit is electrically connected with the pressure capsule unit, and is configured to convert the pressure electrical signal converted by the pressure capsule unit into a stable pressure electrical signal. The A / D conversion unit is electrically connected with the pressure signal conditioning unit, and is configured to perform analog-digital conversion on the stable pressure electrical signal to convert the stable pressure electrical signal into a tire pressure digital signal that can be directly processed by the MCU unit. The MCU unit is electrically connected with the A / D conversion unit, and is configured to perform linearization processing on the tire pressure digital signal to obtain tire pressure data.

3. The on-board tire pressure monitoring apparatus according to claim 2, characterized by The channel signal measurement and sensing processing unit further comprises: The temperature sensing unit is configured to convert the collected temperature data into a tire temperature electrical signal and send the tire temperature electrical signal to the temperature signal conditioning unit. The temperature signal conditioning unit is electrically connected with the temperature sensing unit, and is configured to convert the tire temperature electrical signal converted by the temperature sensing unit into a stable tire temperature electrical signal. The temperature signal conditioning unit is electrically connected with the temperature sensing unit, and is configured to convert the tire temperature electrical signal converted by the temperature sensing unit into a stable tire temperature electrical signal. The temperature signal conditioning unit is electrically connected with the temperature sensing unit, and is configured to convert the tire temperature electrical signal converted by the temperature sensing unit into a stable tire temperature electrical signal. The temperature signal conditioning unit is electrically connected with the temperature sensing unit, and is configured to convert the tire temperature electrical signal converted by the temperature sensing unit into a stable tire temperature electrical signal.

4. The on-board tire pressure monitoring apparatus according to claim 1, characterized by The storage unit is electrically connected with the MCU unit, and is configured to store temperature compensation parameters.

5. The on-board tire pressure monitoring apparatus according to claim 4, characterized by The temperature compensation parameters are called by the MCU unit when performing linearization processing on the tire temperature digital signal, and are used to perform temperature drift compensation processing on the tire temperature digital signal to obtain tire temperature data.

6. An on-board tire pressure monitoring method characterized by, The circuit conditioning unit, the signal sending driving unit, and the signal receiving driving unit are respectively connected with each channel signal measurement and sensing processing unit through a lead. The signal sending driving unit is further configured to condition the tire temperature data collected by each channel signal measurement and sensing processing unit and send the tire temperature data through the first coil unit. An on-board tire pressure monitoring device applied to any one of claims 1-5, comprising: The on-board tire pressure monitoring device receives the alternating current superimposed with the reading instruction provided by the reading device through the single-coil wireless power supply and signal transmission unit, and performs demodulation processing on the alternating current.

7. An on-board tire pressure monitoring system characterized by, The demodulated reading instruction is sent to each channel signal measurement and sensing processing unit, and the channel signal measurement and sensing processing unit controls the collection of tire pressure data and tire temperature data after analyzing the reading instruction. The single-coil wireless power supply and signal transmission unit receives the tire pressure data and tire temperature data sent by each channel signal measurement and sensing processing unit and sends the tire pressure data and tire temperature data to the reading device. The device of any one of claims 1-5 and the reading device, wherein the reading device specifically comprises: an on-board reading device and / or a handheld reading device; 8. The system of claim 7, wherein, The on-board tire pressure monitoring device is configured to monitor the tire pressure data and tire temperature data of the aircraft in real time in the running state of the aircraft. The handheld reading device is configured to read the tire pressure data and tire temperature data of the aircraft in the on / off state of the aircraft. When the reading device is specifically an on-board reading device, it specifically comprises: The on-board monitoring master communication module is configured to perform wireless communication with the host communication module. The on-board monitoring master module is electrically connected with the on-board monitoring master communication module, is used for receiving the reading command sent by the host module, sending the reading instruction, and analyzing and extracting the tire pressure data and the tire temperature data sent by the on-board tire pressure monitoring device; The power supply and conditioning module is electrically connected with the on-board monitoring master module, is used for providing alternating current and performing modulation; The signal modulation and demodulation module is electrically connected with the power supply and conditioning module, is used for superimposing the reading instruction on the alternating current, and demodulating and restoring the tire pressure data and the tire temperature data of the on-board tire pressure monitoring device; The power drive module is electrically connected with the signal modulation and demodulation module, is used for driving the on-board reading device to provide the alternating current superimposed with the reading instruction to the transformer module primary; The transformer module is electrically connected with the power drive module, is used for sending the alternating current sent by the on-board reading device to the second coil module; The second coil module is electrically connected with the transformer module secondary, is used for sending the alternating current superimposed with the reading instruction to the on-board tire pressure monitoring device, and receiving the tire pressure data and the tire temperature data replied by the on-board tire pressure monitoring device; The second coil module of the on-board reading device is sleeved on the on-board tire pressure monitoring device, the transformer module primary is connected with the power drive module through a lead, the power supply and conditioning module, the signal modulation and demodulation module, the on-board monitoring master module, the on-board monitoring master communication module and the power drive module are an integral whole, are installed in the wheel shaft, and are connected with the second coil module through the transformer module secondary; The host communication module is used for wireless communication with the on-board monitoring master communication module; The host module is electrically connected with the host communication module, is used for sending the reading command through the host communication module, receiving the tire pressure data result and the tire temperature data result, and sending to the cockpit display module; The cockpit display module is electrically connected with the host module, is used for receiving the tire pressure data result and the tire temperature data result sent by the host module and displaying; The cockpit display module, the host module and the host communication module form an integral whole and are installed in the cockpit.

9. The system of claim 7, wherein, When the reading device is a handheld reading device, specifically comprising: The key module is used for controlling the MCU master module to send the reading instruction; The MCU master module is electrically connected with the key module, is used for receiving the reading instruction sent by the key, controlling the display screen to display, driving the transmitting coil, and analyzing and extracting the tire pressure data and the tire temperature data; The power supply and conditioning module is electrically connected with the MCU master module, is used for providing alternating current and performing modulation; The signal modulation and demodulation module is electrically connected with the power supply and conditioning module, is used for superimposing the reading instruction on the alternating current, and demodulating and restoring the tire pressure data and the tire temperature data sent by the on-board tire pressure monitoring device; The power drive module is electrically connected with the signal modulation and demodulation module, is used for driving the handheld reading device to provide the alternating current superimposed with the reading instruction to the third coil module; The third coil module is electrically connected with the power driving module, and is used for sending an alternating current with a reading instruction superimposed to the on-board tire pressure monitoring device, and receiving tire pressure data and tire temperature data in response to the on-board tire pressure monitoring device; The display screen module is electrically connected with the MCU main control module, and is used for displaying reading progress and tire pressure data and tire temperature data; The communication interface module is electrically connected with the MCU main control module, and is used for connecting with an upper computer through serial communication, and exporting the processed tire pressure data and tire temperature data of the MCU main control module to the upper computer.

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