Airborne tire pressure monitoring device and monitoring method

Abstract

The invention relates to the technical field of tire pressure monitoring, in particular to an airborne tire pressure monitoring device and method. According to the scheme, the airborne tire pressure monitoring device is installed on the outer side of the air valve of the aircraft tire, the reading device is adopted to superpose the reading instruction on the alternating current, and the reading instruction and the alternating current are transmitted to the airborne tire pressure monitoring device at the same time in a single-coil wireless transmission mode; when aircraft tire pressure data and tire temperature data are acquired, multi-channel acquisition is realized. The reading equipment is provided with a plurality of channel signal measurement induction processing units for acquisition, so that the problems that the equipment cannot be mounted in the tire due to large size, and the fault risk is caused when a single-board card is used for measuring the tire pressure are effectively solved, the reliability and the data accuracy are improved, and the equipment is convenient to maintain and replace.

Description

Technical Field

[0001] The present application relates to the technical field of aircraft tire pressure monitoring, and in particular to an airborne tire pressure monitoring device and a monitoring method. Background Art

[0002] Aircraft tire pressure monitoring is the process of monitoring the inflation pressure in aircraft tires and warning of abnormal tire pressure. Continuous monitoring of tire pressure can improve flight safety, extend tire life, and reduce the risk of under-inflation of tires.

[0003] In the early fleet, since there was no tire pressure monitoring system, the tire pressure had to be measured manually with a tire pressure gauge during routine maintenance. This had the following disadvantages:

[0004] 1. Since maintenance workers need to perform manual measurements, work efficiency is low.

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

[0006] 3. Using a tire pressure gauge brings some hidden dangers, such as nitrogen loss when checking tire pressure, debris entering the valve stem during inspection, and the valve stem loosening so that it cannot seat properly and lose tire pressure.

[0007] With the development of the times, the current existing technology has realized the real-time monitoring of aircraft tire pressure. The existing real-time monitoring system tire pressure data measurement methods are mainly divided into indirect method and direct test method. The indirect method is an indirect detection scheme based on the wheel speed sensor. This system uses the wheel speed sensor of the aircraft ABS system to compare the speed difference between tires to achieve the purpose of monitoring tire pressure. The indirect method is inconvenient to use due to low measurement accuracy, large error, and poor real-time performance. The most widely used direct test method is to use the pressure sensor installed in each tire to directly measure the tire pressure and monitor the tire pressure. The detection system displays the pressure value of each tire, which has been applied in many models of aircraft. However, there is no installation space inside the wheels of most aircraft, so it cannot be implemented, and it is inconvenient to maintain and has high loss. Summary of the invention

[0008] In order to solve or partially solve the problems existing in the related art, the present application provides an airborne tire pressure monitoring device and a monitoring method, which can effectively overcome the problems in the prior art of low aircraft tire pressure monitoring accuracy, large errors, poor real-time performance, large size of the equipment used and inability to be installed inside the wheel, and inconvenient maintenance.

[0009] In a first aspect, the present application provides an airborne tire pressure monitoring device, comprising 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 arranged in the housing;

[0010] Wherein, the enclosed cavity is connected to the interior of the tire through the valve core of the aircraft tire;

[0011] The multi-channel signal sensing processing unit is stacked and installed on the outside of the valve of the aircraft tire, and each of the channel signal measurement sensing processing units can collect tire pressure data of the aircraft tire;

[0012] The single-coil wireless power supply and signal transmission unit is respectively connected to each of the channel signal measurement and sensing processing units, and is used to power the multiple channel signal measurement and sensing processing units after being wirelessly connected to the single-coil wireless power supply and signal transmission unit of the reading device, and send 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 instructions sent by the reading device and send them to the multiple channel signal measurement and sensing processing units.

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

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

[0015] A pressure signal conditioning unit, electrically connected to the pressure core unit, and used for conditioning the pressure electrical signal converted by the pressure core unit into a stable pressure electrical signal;

[0016] An A / D conversion unit, electrically connected to the pressure signal conditioning unit, for performing analog-to-digital conversion on the stable pressure electrical signal, and converting it into a tire pressure digital signal that can be directly processed by the MCU unit;

[0017] The MCU unit is electrically connected to the A / D conversion unit and is used to perform linearization processing on the tire pressure digital signal to obtain tire pressure data.

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

[0019] As an implementation of the first aspect, the channel signal measurement 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, electrically connected to the temperature sensing unit, and configured 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, and the stable tire temperature electrical signal is sent to the A / D conversion unit to be converted into a tire temperature digital signal that can be directly processed by the MCU unit;

[0023] A storage unit, electrically connected to the MCU unit, and 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 an implementation of the first aspect, the single-coil wireless power supply and signal transmission unit specifically includes:

[0026] a first coil unit, wirelessly coupled to the reading device, for receiving an alternating current with a reading instruction superimposed thereon and sent by the reading device, and sending the received tire pressure data to the reading device;

[0027] A circuit conditioning unit, electrically connected to the first coil unit, for rectifying, filtering and stabilizing the AC current, and providing the AC current to other modules in the airborne tire pressure monitoring device;

[0028] A signal transmission driving unit, electrically connected to the circuit conditioning unit, for receiving tire pressure data sent by the MCU unit in each of the channel signal measurement sensing processing units, and sending the tire pressure data to the first coil unit;

[0029] A signal receiving driving unit, electrically connected to the circuit conditioning unit, for receiving a reading instruction received by the first coil unit and sending the reading instruction to each of the channel signal measurement sensing processing units;

[0030] The circuit conditioning unit, the signal sending driving unit and the signal receiving driving unit are respectively connected to each channel signal measuring sensing processing unit through leads.

[0031] As an implementation manner of the first aspect, the signal sending driving unit is further used to process the tire temperature data collected by each channel signal measurement sensing processing unit, and send it through the first coil unit.

[0032] A second aspect of the present application provides a monitoring method applied to the above-mentioned airborne tire pressure monitoring device, comprising:

[0033] The onboard 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 demodulates the alternating current;

[0034] The demodulated read instruction is sent to each of the channel signal measurement and sensing processing units, and the channel signal measurement and sensing processing unit parses the read instruction and controls the collection of tire pressure data and tire temperature data;

[0035] 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 sensing processing unit, and sends the data to the reading device.

[0036] A third aspect of the present application provides a reading device applied to the aforementioned airborne tire pressure monitoring device, the reading device specifically comprising: an airborne reading device and / or a handheld reading device;

[0037] Wherein, the airborne monitoring device is used to monitor the tire pressure data and tire temperature data of the aircraft in real time when the aircraft is in operation;

[0038] The handheld reading device is used to read tire pressure data and tire temperature data of the aircraft when the aircraft is in a grounded / ungrounded state.

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

[0040] The onboard monitoring master control communication module is used for wireless communication with the host communication module;

[0041] An airborne monitoring main control module, electrically connected to the airborne monitoring main control communication module, for receiving a read command sent by the host module, sending a read instruction, parsing and extracting tire pressure data and tire temperature data sent by the airborne tire pressure monitoring device;

[0042] A power supply and conditioning module, electrically connected to the airborne monitoring main control module, for providing and modulating AC current;

[0043] A signal modulation and demodulation module, electrically connected to the power supply and conditioning module, for superimposing a read instruction on the alternating current, and demodulating and restoring the tire pressure data and tire temperature data of the airborne tire pressure monitoring device;

[0044] A power driving module, electrically connected to the signal modulation and demodulation module, for driving the onboard reading device to provide an alternating current with a reading instruction superimposed thereon to the primary of the transformer module;

[0045] A transformer module, wherein the primary side of the transformer module is electrically connected to the power driving module, and the secondary side of the transformer module is electrically connected to the second coil module, and is used to send the alternating current sent by the driving machine-mounted reading device to the second coil module;

[0046] A second coil module is electrically connected to the secondary of the transformer module, and is used to send an alternating current superimposed with a reading instruction to the airborne tire pressure monitoring device, and receive tire pressure data and tire temperature data responded by 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 of the transformer module is connected to the power driving module through a lead, and 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 driving module are integrated as a whole, installed inside the wheel axle, and connected to the second coil module through the secondary of the transformer module;

[0048] Host communication module, used for wireless communication with the onboard monitoring main control communication module;

[0049] A host module, electrically connected to the host communication module, for sending a read command through the host communication module, receiving tire pressure data results and tire temperature data results and sending them to a cockpit display module;

[0050] A cockpit display module, electrically connected to the host module, for receiving and displaying tire pressure data results and tire temperature data results sent by the host module;

[0051] Among them, the cockpit display module, host module and host communication module form a whole and are installed in the cockpit.

[0052] As an 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 instructions;

[0054] The MCU main control module is electrically connected to the key module and is used to receive the read instruction sent by the key, control the display screen, drive the transmitting coil, and parse and extract tire pressure data and tire temperature data;

[0055] A power supply and conditioning module, electrically connected to the MCU main control module, for providing and modulating AC current;

[0056] A signal modulation and demodulation module, electrically connected to the power supply and conditioning module, for superimposing a read instruction on the alternating current, and demodulating and restoring the tire pressure data and tire temperature data sent by the onboard tire pressure monitoring device;

[0057] A power driving module, electrically connected to the signal modulation and demodulation module, and used to drive the handheld reading device to provide an alternating current superimposed with a reading instruction to the third coil module;

[0058] a third coil module, electrically connected to the power driving module, for sending an alternating current superimposed with a reading instruction to the onboard tire pressure monitoring device, and receiving tire pressure data and tire temperature data responded by the onboard tire pressure monitoring device;

[0059] A display screen module, electrically connected to the MCU main control module, for displaying the reading progress and 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 through serial port 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 by this application may have the following beneficial effects:

[0062] The present application provides an airborne tire pressure monitoring device and a monitoring method. The airborne tire pressure monitoring device consists of a shell of a closed cavity, a single-coil wireless power supply and signal transmission unit, and a plurality of channel signal measurement and sensing processing units. The plurality of channel signal measurement and sensing processing units are respectively connected to the single-coil wireless power supply and signal transmission unit and are arranged inside the cavity. During installation, the plurality of channel signal measurement and sensing processing units are stacked and installed on the outside of the valve mouth of an aircraft tire. The closed cavity is connected to the interior of the tire through the valve core of the aircraft tire, thereby realizing the monitoring of the aircraft tire pressure and tire temperature. In the present application, a reading device is used to superimpose a reading instruction on an alternating current, and the reading instruction and the alternating current are simultaneously transmitted to the airborne tire pressure monitoring device by means of a single-coil wireless transmission, thereby effectively reducing the electrical connection wires and leads between the airborne tire pressure monitoring device and the aircraft. When collecting aircraft tire pressure data and tire temperature data, multiple channel signal measurement and sensing processing units are set up for collection, and the collected tire pressure data and tire temperature data are processed and analyzed, thereby realizing a redundant design for measuring tire pressure, effectively reducing the risk of failure of a single-board card for measuring tire pressure, and increasing reliability and data accuracy. Furthermore, since the airborne tire pressure monitoring device is installed on the outside of the aircraft tire valve, it is convenient to maintain and replace the equipment, thereby overcoming the problem that the equipment is too large to be installed inside the tire.

[0063] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

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

[0066] Figure 2 is a schematic diagram of the circuit connection structure of an airborne tire pressure monitoring device shown in an embodiment of the present application;

[0067] Figure 3 is a working flow diagram of an airborne tire pressure monitoring device shown in an embodiment of the present application;

[0068] Figure 4 is a structural diagram of an airborne reading device shown in an embodiment of the present application;

[0069] Figure 5 is a connection diagram of an airborne reading device shown in an embodiment of the present application;

[0070] Figure 6 is a working diagram of an airborne reading device shown in an embodiment of the present application;

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

[0072] Figure 8 is a work flow chart of a handheld reading device shown in an embodiment of the present application;

[0073] Explanation of symbols: 1-channel signal measurement induction 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 sending drive unit; 25-signal receiving drive unit; 3-airborne reading device; 31-cockpit display module; 32-host module; 33-host 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 Driving 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 driving module; 48-third coil module; 5-shell; 6-sealed cavity; 7-vent; 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 driving module; 301-wheel hub; 302-axle. DETAILED DESCRIPTION

[0074] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0075] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more 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 the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0077] In an embodiment of the present application, an airborne tire pressure monitoring device is provided, which includes a shell 5 having a closed cavity 6, a multi-channel signal sensing and processing unit and a single-coil wireless power supply and signal transmission unit 2 arranged in the shell, and the closed 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 shown.

[0079] Among them, the single-coil wireless power supply and signal transmission unit 2 is composed 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, and the signal driving module 202 includes a signal sending driving unit 24 and a signal receiving driving unit 25.

[0080] Furthermore, the multi-channel signal sensing processing unit is composed of multiple channel signal measurement and sensing processing units 1. The multiple channel signal measurement and sensing processing units 1 are specifically three in the embodiment of the present application. The first data processing module 101, the second data processing module 102, and the third data processing module 103 are electrically connected to the first measurement module 104, the second measurement module 105, and the third measurement module 106 respectively, and two of them form three channel signal measurement and sensing processing units 1, wherein the internal structure of the three data processing modules is the same, 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 internal structure of the three measurement modules is also the same, including a temperature sensing unit 16 and a pressure core unit 17.

[0081] A plurality of channel signal measurement sensing processing units 1 are stacked and installed on the outside of the valve stem of the aircraft tire, and each channel signal measurement sensing processing unit 1 can collect 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 sensing processing unit 1 is installed in the closed cavity 6.

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

[0084] Among them, an onboard tire pressure monitoring device interface 9 is installed at the valve position of the aircraft tire, and the shell 5 is installed on the onboard tire pressure monitoring device interface 9 by screwing. A sealing ring 8 is provided between the shell 5 and the onboard tire pressure monitoring device interface 9 for sealing. After the installation is completed, the closed cavity 6 inside the shell 5 is in a sealed state, and the closed cavity 6 is connected to the valve core through the vent 7. The valve core is connected to the inside of the aircraft tire, and the gas inside the tire fills the entire closed cavity through the valve core. The multiple channel signal measurement sensing processing unit 1 collects tire pressure data by collecting the air pressure inside the closed cavity.

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

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

[0087] The pressure core unit 17 is used to convert the collected tire pressure data into a pressure electrical signal and send it 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] The temperature signal conditioning unit 14 is electrically connected to the temperature sensing unit 16 and is used to condition the tire temperature electrical signal converted by the temperature sensing unit 16 into a stable tire temperature electrical signal.

[0091] Among them, the temperature signal conditioning unit 14 and the pressure signal conditioning unit 15 condition the pressure electrical signal and the tire temperature electrical signal respectively through amplification and filtering processing. The signal amplitude is enhanced through amplification processing, and the resolution and detection sensitivity of the signal are improved. Through filtering processing, the noise in the signal is effectively suppressed, the signal-to-noise ratio is improved, and the signal is clearer and more accurate. The present application adopts the above conditioning method in the conditioning process, which significantly improves the quality and processability of the signal, and provides 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, and is used to perform analog-to-digital conversion on the stable pressure electrical signal and the tire temperature electrical signal, and convert them into tire pressure digital signals and tire temperature digital signals that 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 perform linearization processing on 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 read instruction, control the acquisition of the signal through the parsed read instruction, and feed back the tire pressure data and tire temperature data to the reading device.

[0095] The 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 completes the linearization processing of 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, and obtains 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 convenient for analysis by the reading device, and the tire status of the specific aircraft tire can be directly determined.

[0098] In the embodiment of the present 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, including:

[0099] The first coil unit 21 is wirelessly coupled to the reading device, and is used for receiving an alternating current with a reading instruction superimposed thereon sent by the reading device, and sending the received tire pressure data to the reading device.

[0100] Among them, the reading device sends an alternating current superimposed with a reading instruction through a coil. From a structural point of view, the reading device coil and the first coil unit 21 form a hollow transformer, and the alternating current superimposed with the reading instruction is transmitted through the transformer. During the transmission process, the Faraday electromagnetic induction principle is adopted, and the alternating current is provided to the reading device coil through the power supply module of the reading device. The alternating current generates a changing magnetic field on the reading device coil, and the magnetic field can pass through the first coil unit 21 to generate an alternating current in the first coil unit 21. After the alternating current is processed, other units can be powered.

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

[0102] Among them, 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 electrically connected to the circuit conditioning unit 23. The electromagnetic compatibility and protection unit 22 is used to receive the alternating current transmitted by the first coil unit 21, and process the alternating current through isolation, overvoltage protection, and overcurrent protection mechanisms to ensure that each unit inside the device works normally in a complex electromagnetic environment, and send the alternating current to the current conditioning unit 23 after the processing is completed.

[0103] Furthermore, the circuit conditioning unit 23 also has the function of demodulating a read instruction waveform from the alternating current, and sends the demodulated read instruction waveform to the signal receiving driving unit 24 .

[0104] The signal sending driving unit 25 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 each channel signal measurement sensing processing unit 1 , and send the tire pressure data to the first coil unit 21 .

[0105] The signal sending driving unit 25 is further used to process the tire temperature data collected by each channel signal measurement sensing processing unit 1 and send it through the first coil unit 21 .

[0106] Furthermore, before the signal sending drive unit 25 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, and 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 sent through the first coil unit 21, it is sent to the first coil unit 21.

[0107] The signal receiving driving unit 24 is electrically connected to the circuit conditioning unit 23, and is used to receive the reading instruction received by the first coil unit 21, and send it to each channel signal measurement induction processing device 1.

[0108] The signal receiving and driving unit 24 receives the read instruction waveform transmitted by the circuit conditioning unit 23 , converts and demodulates it, converts it into an instruction in digital format and sends it to the MCU unit 11 .

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

[0110] Furthermore, the specific connection method of each module of the airborne tire pressure monitoring device is as follows: Figure 3 shown.

[0111] The present embodiment provides an airborne tire pressure monitoring device, which is powered by wireless transmission and superimposes a reading instruction on an alternating current for transmission, thereby effectively reducing the electrical connection wires between the monitoring device and the reading device, and providing a plurality of channel signal measurement sensing processing units to collect tire pressure data and tire temperature data, thereby realizing a redundant design for measuring tire pressure and tire temperature, reducing the risk of failure of a single board in measuring tire pressure, increasing reliability, and improving data accuracy. At the same time, since the airborne tire pressure monitoring device is installed on the outside of the valve of the aircraft tire, it is convenient for maintenance, inspection and replacement.

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

[0113] S11: The onboard 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 2, and demodulates the alternating current.

[0114] Furthermore, step S11 implements the airborne tire pressure monitoring device receiving the alternating current and the reading instruction sent by the reading device, and the specific process is as follows:

[0115] S111: The single-coil wireless power supply and signal transmission unit 2 receives an alternating current provided by a reading device through the first coil unit 21 .

[0116] S112: The electromagnetic compatibility and protection unit 22 is used to isolate, protect against overvoltage, and protect against overcurrent of the AC current.

[0117] S113: The processed AC current is rectified, filtered and stabilized by the circuit conditioning unit 23, and after the processing is completed, it is provided to other modules inside the onboard tire pressure monitoring device so that the other modules can work normally.

[0118] S12: The demodulated reading instruction is sent to each channel signal measurement and sensing processing unit 1. The channel signal measurement and sensing processing unit 1 parses the reading instruction and controls the collection of tire pressure data and tire temperature data.

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

[0120] S121 : The signal receiving and conditioning module 24 demodulates the read instruction superimposed on the alternating current and sends it 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 sensor unit 16 to respectively respond to 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 pressure electric signal and the tire temperature electric signal that have been amplified and filtered are converted into tire pressure digital signals and tire temperature digital signals that can be directly processed by the MCU unit 11 through analog-to-digital conversion by the A / D conversion unit 13.

[0124] S125: The converted tire pressure digital signal and tire temperature digital signal are sent to the MCU unit 11. The MCU unit 11 calls the temperature compensation parameters and aircraft tire ID parameters stored in the storage unit 12, and calibrates 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 each channel signal measurement sensing processing unit 1, and sends them to the reading device.

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

[0127] S131: receiving the tire pressure data and tire temperature data processed by the MCU unit 11 in each channel signal measurement sensing processing unit 1 through the signal sending driving unit 25, and converting, driving, modulating and amplifying the tire pressure data and temperature data.

[0128] S132: Send the processed tire pressure data and tire temperature data to the first coil unit 21, and send the tire pressure data and tire temperature data to a reading device through the first coil unit 21.

[0129] The present embodiment provides a collection method for an airborne tire pressure monitoring device, by sending read instructions to multiple channel signal measurement and sensing processing units 1 for analysis. After the multiple channel signal measurement and sensing processing units 1 complete the collection of tire pressure data and tire temperature data according to the read instructions, each channel signal measurement and sensing processing unit 1 sends the collected data to the signal sending drive unit 25, and the signal sending drive unit 25 sends the data collected by the multiple channel signal measurement and sensing processing units 1 to the first coil unit 21, and the data is sent to the reading device through the first coil unit 21. In this process, the present embodiment collects tire pressure data and tire temperature data through multiple channels, realizes redundant design to measure tire pressure and tire temperature, reduces the failure risk of a single board measuring tire pressure, increases reliability, and improves data accuracy.

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

[0131] The onboard reading device 3 is used to monitor the tire pressure data and tire temperature data of the aircraft in real time when the aircraft is in operation.

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

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

[0134] As an implementation method of the embodiment of the present application, when the reading device is specifically an airborne reading device 3, the specific structure is as follows: Figure 4 As shown, including:

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

[0136] The onboard monitoring main control module 35 is electrically connected to the onboard monitoring main control communication module 34, and 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 onboard 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 and modulate AC current.

[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 read instruction on the alternating current, and demodulate and restore the tire pressure data and tire temperature data of the onboard tire pressure monitoring device.

[0139] The signal modulation and demodulation module 37 uses digital modulation to superimpose the read instruction on the alternating current, and makes the waveform of the read instruction change according to the waveform of the alternating current. The read instruction is set as the adjustment signal, and the alternating current is set as the carrier signal. The waveform of the read instruction is changed according to the waveform of the alternating current, thereby completing the superposition of the read instruction and the alternating current.

[0140] The power driving 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 with a reading instruction superimposed on the primary of the transformer module 40;

[0141] The transformer module 40 has a primary side electrically connected to the power driving module 38 and a secondary side electrically connected to the second coil module 39 , and is used to send the AC current sent by the driving airborne reading device 3 to the second coil module 39 .

[0142] The second coil module 39 is electrically connected to the secondary of the transformer 40 module, and is used to send an alternating current superimposed with a reading instruction to the onboard tire pressure monitoring device, and receive tire pressure data and tire temperature data responded by the onboard 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 driving module 38 through a lead, 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 driving module 38 are a whole, 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 primary and secondary coils of the transformer module 40 are two coils. 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 at 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, and energy transfer and signal transmission are realized by using the Faraday electromagnetic induction principle. Since the secondary coil of the transformer module 40 is sleeved at the fixed position of the primary coil of the transformer module 40 in a surrounding form, energy transfer and signal transmission will not be interrupted during the rotation of the wheel hub 301. The specific installation method is as follows: Figure 5 shown.

[0145] The host communication module 33 is used for wireless communication with the onboard 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 a read command 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 results and tire temperature data results sent by the host module 32.

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

[0149] Further, the process of the onboard reading device 3 in the embodiment of the present application reading tire pressure data and tire temperature data is as follows: Figure 6 As shown, specifically including:

[0150] S21: After the host module 32 is turned on, it sends a read command to the onboard monitoring main control module 35 at a fixed time.

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

[0152] S23: After the first coil unit 21 senses the AC current, the circuit conditioning unit 23 completes AC rectification, filtering and voltage stabilization, and provides the processed AC current to other units of the onboard tire pressure monitoring device to enable them to work normally.

[0153] S24: The onboard monitoring main control module 35 sends a read instruction again, modulates the provided AC current through the power supply and conditioning module 36 and the signal modulation and demodulation module 37, and superimposes the read instruction on the AC current and sends it to the onboard tire pressure monitoring device.

[0154] S25: After the onboard tire pressure monitoring device receives the alternating current superimposed with the reading instruction, the MCU unit 11 parses the received instruction, 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 the signal 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 34 .

[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 respectively collected by the three-channel signal measurement sensing processing units 1 .

[0157] S27: The onboard monitoring main control module 34 analyzes and extracts the data, and 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] Among them, when the airborne monitoring main control module 34 parses and extracts the data, it is necessary to comprehensively process the tire pressure data and tire temperature data collected by the three channel signal measurement 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 method of the embodiment of the present application, when the reading device is specifically a handheld reading device 4, the specific structure is as follows: Figure 7 As shown, including:

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

[0161] The MCU main control module 44 is electrically connected to the key module 42 and is used to receive the read instruction sent by the key module 42, control the display screen, drive the transmitting coil, and analyze and extract the 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 and modulate AC current.

[0163] The signal modulation and demodulation module 46 is electrically connected to the power supply and conditioning module 45, and is used to superimpose the read instruction on the alternating current, and demodulate and restore the tire pressure data and tire temperature data sent by the onboard tire pressure monitoring device.

[0164] The power driving 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 alternating current superimposed with a reading instruction to the third coil module 48 .

[0165] The third coil module 48 is electrically connected to the power driving module 47, and is used to send an alternating current superimposed with a reading instruction to the onboard tire pressure monitoring device, and receive tire pressure data and tire temperature data responded by the onboard tire pressure monitoring device.

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

[0167] The communication interface module 42 is electrically connected to the MCU main control module 44 and is used to connect to the host computer through serial port 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 handheld reading device 4 in the embodiment of the present application reads the tire pressure data and the tire temperature data in the following process: Figure 8 As shown, specifically including:

[0169] S31: The operator issues a read command through the key 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 an alternating current of a specific frequency.

[0170] S32: After the first coil unit 21 senses the AC current, the circuit conditioning unit 23 completes AC rectification, filtering and voltage stabilization, and provides the processed AC current to other units of the onboard tire pressure monitoring device to enable them to work normally.

[0171] S33: The MCU main control module 44 of the handheld reading device sends a read command again, modulates the provided AC current through the power supply and conditioning module 45 and the signal modulation and demodulation module 46, superimposes the read instruction on the AC current signal, and sends it to the onboard tire pressure monitoring device.

[0172] S34 : After the first coil unit 21 receives the alternating current, the signal receiving and driving unit 24 converts and demodulates the superimposed instruction, restores the read instruction and sends it to the MCU unit 11 .

[0173] S35: The MCU unit 11 parses the received instruction, 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.

[0174] S36 : After receiving the data signal, the third coil module 48 demodulates the signal 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 respectively collected by the three-channel signal measurement sensing processing units 1 .

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

[0177] Among them, when the MCU main control module 44 parses and extracts the data, it is necessary to comprehensively process the tire pressure data and tire temperature data collected by the three channel signal measurement 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 through a wire to import the data results stored in the handheld reading device into 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 an airborne tire pressure monitoring device. When the aircraft is in operation, an airborne reading device is used to read tire pressure data and tire temperature data in real time, and the tire status can be reflected in real time. When the aircraft is on the ground / off the ground, a handheld reading device is used, and an operator can directly read the tire pressure data and tire temperature data of the aircraft tires through the handheld reading device. The reading of tire pressure data and tire temperature data can be completed 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 the read tire status data to the host computer through the communication interface module, which is convenient for uploading and managing tire status data.

[0180] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An airborne tire pressure monitoring device, characterized in that: It comprises a shell having a sealed cavity, a multi-channel signal processing unit and a single-coil wireless power receiving and signal transmission unit arranged in the shell; Wherein, the enclosed cavity is connected to the interior of the tire through the valve core of the aircraft tire; The channel signal measurement sensing processing units are stacked and installed on the outside of the valve of the aircraft tire, and each of the channel signal measurement sensing processing units can collect tire pressure data of the aircraft tire; The single-coil wireless power supply and signal transmission unit is respectively connected to each of the channel signal measurement and sensing processing units, and is used to power the multiple channel signal measurement and sensing processing units after being wirelessly connected to the single-coil wireless power supply and signal transmission unit of the reading device, and send 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 instructions sent by the reading device and send them to the multiple channel signal measurement and sensing processing units.

2. The airborne tire pressure monitoring device according to claim 1, characterized in that: The channel signal measurement sensing processing unit comprises: The pressure core unit is used to convert the collected tire pressure data into a pressure electrical signal and send it to the pressure signal conditioning unit; A pressure signal conditioning unit, electrically connected to the pressure core unit, and used for conditioning the pressure electrical signal converted by the pressure core unit into a stable pressure electrical signal; An A / D conversion unit, electrically connected to the pressure signal conditioning unit, for performing analog-to-digital conversion on the stable pressure electrical signal, and converting it into a tire pressure digital signal that can be directly processed by the MCU unit; The MCU unit is electrically connected to the A / D conversion unit and is used to perform linearization processing on the tire pressure digital signal to obtain tire pressure data.

3. The airborne tire pressure monitoring device according to claim 2, characterized in that: Each of the channel signal measurement sensing processing units is also used to monitor tire temperature data of the aircraft tire.

4. The airborne tire pressure monitoring device according to claim 3, characterized in that: The channel signal measurement sensing processing unit also includes: 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; a temperature signal conditioning unit, electrically connected to the temperature sensing unit, and configured to condition the tire temperature electrical signal converted by the temperature sensing unit into a stable tire temperature electrical signal; The other end of the temperature signal conditioning unit is electrically connected to the A / D conversion unit, and the stable tire temperature electrical signal is sent to the A / D conversion unit to be converted into a tire temperature digital signal that can be directly processed by the MCU unit; A storage unit, electrically connected to the MCU unit, and used to store temperature compensation parameters; 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.

5. The airborne tire pressure monitoring device according to claim 1, characterized in that: The single-coil wireless power supply and signal transmission unit specifically includes: a first coil unit, wirelessly coupled to the reading device, for receiving an alternating current superimposed with a reading instruction provided by the reading device, and sending the received tire pressure data to the reading device; A circuit conditioning unit, electrically connected to the first coil unit, for rectifying, filtering and stabilizing the AC current, and providing the AC current to other modules in the airborne tire pressure monitoring device; A signal transmission driving unit, electrically connected to the circuit conditioning unit, for receiving tire pressure data sent by the MCU unit in each of the channel signal measurement sensing processing units, and sending the tire pressure data to the first coil unit; A signal receiving driving unit, electrically connected to the circuit conditioning unit, for receiving a reading instruction received by the first coil unit and sending the reading instruction to each of the channel signal measurement sensing processing units; The circuit conditioning unit, the signal sending driving unit and the signal receiving driving unit are respectively connected to each channel signal measuring sensing processing unit through leads.

6. The airborne tire pressure monitoring device according to claim 5, characterized in that: The signal transmission driving unit is further used to condition the tire temperature data collected by each channel signal measurement sensing processing unit and transmit the data through the first coil unit.

7. An airborne tire pressure monitoring method, characterized in that: An airborne tire pressure monitoring device applied to any one of claims 1 to 6, comprising: The onboard 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 demodulates the alternating current; The demodulated read instruction is sent to each of the channel signal measurement and sensing processing units, and the channel signal measurement and sensing processing unit parses the read instruction and controls the collection of tire pressure data and tire temperature data; 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 sensing processing unit, and sends the data to the reading device.

8. An airborne tire pressure monitoring system, characterized in that: The device comprises the apparatus according to any one of claims 1 to 6 and a reading device, wherein the reading device specifically comprises: an airborne reading device and / or a handheld reading device; The onboard monitoring device is used to monitor the tire pressure data and tire temperature data of the aircraft in real time when the aircraft is in operation; The handheld reading device is used to read tire pressure data and tire temperature data of the aircraft when the aircraft is in a grounded / ungrounded state.

9. The system according to claim 8, characterized in that When the reading device is specifically an airborne reading device, it specifically includes: The onboard monitoring master control communication module is used for wireless communication with the host communication module; An airborne monitoring main control module, electrically connected to the airborne monitoring main control communication module, for receiving a read command sent by the host module, sending a read instruction, parsing and extracting tire pressure data and tire temperature data sent by the airborne tire pressure monitoring device; A power supply and conditioning module, electrically connected to the airborne monitoring main control module, for providing and modulating AC current; A signal modulation and demodulation module, electrically connected to the power supply and conditioning module, for superimposing a read instruction on the alternating current, and demodulating and restoring the tire pressure data and tire temperature data of the airborne tire pressure monitoring device; A power driving module, electrically connected to the signal modulation and demodulation module, for driving the onboard reading device to provide an alternating current with a reading instruction superimposed thereon to the primary of the transformer module; A transformer module, wherein the primary side of the transformer module is electrically connected to the power driving module, and the secondary side of the transformer module is electrically connected to the second coil module, and is used to send the alternating current sent by the driving machine-mounted reading device to the second coil module; A second coil module is electrically connected to the secondary of the transformer module, and is used to send an alternating current superimposed with a reading instruction to the airborne tire pressure monitoring device, and receive tire pressure data and tire temperature data responded by the airborne tire pressure monitoring device; The second coil module of the airborne reading device is sleeved on the airborne tire pressure monitoring device, the primary of the transformer module is connected to the power driving module through a lead, and 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 driving module are integrated as a whole, installed inside the wheel axle, and connected to the second coil module through the secondary of the transformer module; Host communication module, used for wireless communication with the onboard monitoring main control communication module; A host module, electrically connected to the host communication module, for sending a read command through the host communication module, receiving tire pressure data results and tire temperature data results and sending them to a cockpit display module; A cockpit display module, electrically connected to the host module, for receiving and displaying tire pressure data results and tire temperature data results sent by the host module; Among them, the cockpit display module, host module and host communication module form a whole and are installed in the cockpit.

10. The system according to claim 8, characterized in that When the reading device is a handheld reading device, it specifically includes: The button module is used to control the MCU main control module to send read instructions; The MCU main control module is electrically connected to the key module and is used to receive the read instruction sent by the key, control the display screen, drive the transmitting coil, and parse and extract tire pressure data and tire temperature data; A power supply and conditioning module, electrically connected to the MCU main control module, for providing and modulating AC current; A signal modulation and demodulation module, electrically connected to the power supply and conditioning module, for superimposing a read instruction on the alternating current, and demodulating and restoring the tire pressure data and tire temperature data sent by the onboard tire pressure monitoring device; A power driving module, electrically connected to the signal modulation and demodulation module, and used to drive the handheld reading device to provide an alternating current superimposed with a reading instruction to the third coil module; a third coil module, electrically connected to the power driving module, for sending an alternating current superimposed with a reading instruction to the onboard tire pressure monitoring device, and receiving tire pressure data and tire temperature data responded by the onboard tire pressure monitoring device; A display screen module, electrically connected to the MCU main control module, for displaying the reading progress and tire pressure data and tire temperature data; The communication interface module is electrically connected to the MCU main control module and is used to connect to the host computer through serial port communication to export the tire pressure data and tire temperature data processed by the MCU main control module to the host computer.

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