Multifunctional network communication TPMS diagnostic apparatus

Abstract

The utility model relates to a multifunctional network communication TPMS (Tire Pressure Monitor System) diagnostic instrument, which comprises an MCU (Microprogrammed Control Unit), an adjustable low-frequency transmitting module, a 433.92 M receiving and transmitting module, a BLE (Bluetooth Low Energy) receiving and transmitting module, a CAN (Controller Area Network) communication module and a 4G communication module, and the adjustable low-frequency transmitting module, the 433.92 M receiving and transmitting module, the BLE receiving and transmitting module, the CAN communication module and the 4G communication module are respectively connected with the MCU, the adjustable low-frequency transmitting module, the 433.92 M receiving and transmitting module and the BLE receiving and transmitting module are further in communication connection with TPMS sensors in vehicle tires respectively, the 4G communication module is further in communication connection with an after-sales system, and the CAN communication module is connected with a vehicle machine system through a CAN interface. The problem that an existing tire pressure matching tool is single in function is solved, and the multifunctional network communication TPMS diagnostic instrument is provided for comprehensively and efficiently diagnosing a TPMS sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive electronics, and particularly relates to a multi-functional network communication TPMS diagnostic instrument. Background Art

[0002] TPMS is a tire pressure monitoring system that can automatically monitor various conditions of tires in real time by recording tire rotation speed or installing electronic sensors in the tires, providing effective safety protection for driving.

[0003] Currently, the functions of the existing tire pressure supporting tools are single:

[0004] 1. It lacks the installation assistance and diagnosis for Bluetooth tire pressure sensors, cannot automatically identify and pair with Bluetooth tire pressure sensors, and cannot receive and display the data sent by Bluetooth tire pressure sensors in real time;

[0005] 2. It lacks the ability to analyze CAN communication messages, cannot obtain and analyze tire pressure-related data in real time from the bus level, increasing the difficulty of troubleshooting;

[0006] 3. It also cannot save operation information such as calibrating, fault diagnosing, and maintenance recording of tire pressure sensors during the maintenance process in the device, resulting in inability to trace and query later;

[0007] 4. It cannot artificially set the power of the low-frequency signal, resulting in inability to flexibly adjust the signal strength to ensure successful activation of the sensor when dealing with tires of different thicknesses and materials.

[0008] Therefore, there is an urgent need to provide a multi-functional network communication TPMS diagnostic instrument to solve the above problems. Summary of the Utility Model

[0009] The purpose of the utility model is to overcome the deficiencies and defects of the prior art, and provide a multi-functional network communication TPMS diagnostic instrument to comprehensively and efficiently diagnose TPMS sensors, solving the problem of single functions of existing tire pressure supporting tools.

[0010] The purpose of the utility model is achieved through the following technical solutions:

[0011] A multifunctional network communication TPMS diagnostic instrument, comprising an MCU microcontroller, an adjustable low-frequency transmitting module, a 433.92M transceiver module, a BLE transceiver module, a CAN communication module, and a 4G communication module. The adjustable low-frequency transmitting module, the 433.92M transceiver module, the BLE transceiver module, the CAN communication module, and the 4G communication module are respectively connected to the MCU microcontroller. Among them, the adjustable low-frequency transmitting module, the 433.92M transceiver module, and the BLE transceiver module are also respectively communicatively connected to TPMS sensors inside vehicle tires. The 4G communication module is also communicatively connected to an after-sales system, and the CAN communication module is connected to a vehicle head unit system through a CAN interface.

[0012] As a preferred technical solution of the present utility model, a storage unit is further provided, and the storage unit is connected to the MCU microcontroller.

[0013] As a preferred technical solution of the present utility model, a keypad is further provided, and the keypad is connected to the MCU microcontroller for inputting instructions.

[0014] As a preferred technical solution of the present utility model, an LCD display panel is further provided, and the LCD display panel is connected to the MCU microcontroller, transmits display data through a display interface, and displays through the display panel.

[0015] As a preferred technical solution of the present utility model, a buzzer is further provided, and the buzzer is connected to the MCU microcontroller. The MCU microcontroller sends a sound instruction to the buzzer to make the buzzer emit a sound alarm.

[0016] As a preferred technical solution of the present utility model, a power supply module is further included, and the power supply module is respectively connected to the MCU microcontroller, the adjustable low-frequency transmitting module, the 433.92M transceiver module, the BLE transceiver module, the CAN communication module, the 4G communication module, the storage unit, the keypad, the LCD display panel, and the buzzer.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] 1. By integrating an adjustable low-frequency transmitting module, the low-frequency working power output can be manually set, and the low-frequency power can be adjusted according to actual environmental conditions such as tire thickness to ensure effective activation of the sensor.

[0019] 2. By integrating a 433.92M transceiver module and a BLE transceiver module, the diagnostic instrument can be compatible with 433.92MHz and 2.4GHz Bluetooth TPMS products.

[0020] 3. By integrating a CAN communication module, the diagnostic instrument is connected to the vehicle CAN network through the CAN interface, and can capture and analyze CAN communication messages related to TPMS in real time;

[0021] 4. By integrating a 4G communication module, the installed product information is transmitted to the background in real time through the 4G network for product traceability and problem analysis. Brief Description of the Drawings

[0022] Figure 1 It is a structural framework diagram of the present utility model. Detailed Embodiment

[0023] The present utility model will be further described in detail below in conjunction with the embodiments and the drawings, but the embodiments of the present utility model are not limited thereto.

[0024] The specific implementation process of the present utility model is as follows:

[0025] As Figure 1 shown, a multifunctional network communication TPMS diagnostic instrument includes an MCU microcontroller, an adjustable low-frequency emission module, a 433.92M transceiver module, a BLE transceiver module, a CAN communication module, and a 4G communication module. The adjustable low-frequency emission module, the 433.92M transceiver module, the BLE transceiver module, the CAN communication module, and the 4G communication module are respectively connected to the MCU microcontroller. Among them, the adjustable low-frequency emission module, the 433.92M transceiver module, and the BLE transceiver module are also respectively communicatively connected to the TPMS sensors in the vehicle tires, the 4G communication module is also communicatively connected to the after-sales system, and the CAN communication module is connected to the vehicle head unit system through the CAN interface.

[0026] Specifically, the low-frequency working power is set through the keypad input. The MCU microcontroller controls the adjustable low-frequency transmitting module to send low-frequency signals, enabling flexible adjustment of the signal strength to ensure successful activation of the sensor, so as to cope with tires of different thicknesses and materials and improve the pairing success rate. The 433.92M transceiver module communicates with the TPMS sensor inside the vehicle tire wirelessly via RF, receives data such as tire pressure and temperature from the tire sensor, and sends control instructions to the TPMS sensor to achieve real-time data transmission. The BLE transceiver module is used for Bluetooth TPMS products, enabling the diagnostic instrument to support Bluetooth communication. After activating the TPMS sensor, it can receive data from the Bluetooth version of the TPMS sensor and detect whether the TPMS product is working properly. It allows the diagnostic instrument to establish a connection with a smartphone or other Bluetooth devices to achieve wireless data transmission and remote control. For example, the tire status can be viewed and alarm messages can be received through the mobile phone APP. The CAN communication module includes a CAN communication chip. The MCU microcontroller is connected to the vehicle head unit system through the CAN communication module. Through the CAN interface, the diagnostic instrument is connected to the vehicle CAN network to capture and analyze CAN communication messages related to TPMS in real time, which is used to detect whether the data sent by the TPMS sensor is normal and provide data support for fault diagnosis. A USB interface can also be set up to communicate with the vehicle head unit through the USB interface. The 4G communication module is connected to the MCU microcontroller. When the diagnostic instrument activates the TPMS sensor, the ID of the TPMS sensor and data such as the current tire pressure, tire temperature, and voltage are saved locally in the diagnostic instrument and sent to the storage unit for storage through the 4G communication module. At the same time, it is transmitted to the after-sales system through the 4G communication module. The after-sales system is the manufacturer's background, which is convenient for the manufacturer's background to trace the product and understand the installation situation, such as relevant information like sensor ID, installation time, location, and installation environment. Analyze this data, such as whether the voltage is normal, whether the installed tire pressure and tire temperature environment are normal, and the installation speed and installation quantity of products in the same batch.

[0027] In an embodiment of the present invention, a storage unit is further provided. The storage unit is connected to the MCU microcontroller. The diagnostic instrument provides a data storage function through the integrated storage unit, and can save a large amount of diagnostic records, fault information, user settings, operation logs and other information, back up the data for subsequent analysis and query, and improve the flexibility and security of data management.

[0028] In an embodiment of the present invention, the keypad is connected to the MCU microcontroller, receives user input instructions and data through the key interface, and controls the working mode and functions of the diagnostic instrument. Through the keypad, an intuitive and easy-to-use operation interface is provided, and users can easily complete operations such as calibration of TPMS, fault troubleshooting, and data analysis.

[0029] In an embodiment of the present utility model, there is also an LCD display panel, which is connected to the MCU microcontroller, transmits display data through a display interface, and displays through the display panel. The display data includes information such as the working state of the diagnostic instrument, diagnostic results, user settings, etc., and is used to show the status information of the tire to the driver. Through an intuitive user interface, it allows technicians or drivers to easily view the tire status, receive alarm information, perform diagnostic tasks, etc.

[0030] In an embodiment of the present utility model, there is also a buzzer, which is connected to the MCU microcontroller. When a tire abnormality or a self-fault of the diagnostic instrument is detected, the MCU microcontroller sends a sound command to the buzzer to control the buzzer to emit a sound alarm to remind the user to pay attention. In addition to the buzzer, the driver can also be reminded by means of indicator light flashing, etc.

[0031] In an embodiment of the present utility model, it also includes a power supply module, which is respectively connected to the MCU microcontroller, adjustable low-frequency emission module, 433.92M transceiver module, BLE transceiver module, CAN communication module, 4G communication module, storage unit, keypad, LCD display panel, and buzzer. The power supply module provides a stable power supply for the entire diagnostic instrument, and is connected to each module through a power cord to ensure the normal operation of each module of the diagnostic instrument.

[0032] The multifunctional network communication TPMS diagnostic instrument of the present utility model realizes comprehensive and efficient diagnosis of TPMS sensors by integrating an MCU microcontroller, adjustable low-frequency emission module, 433.92M transceiver module, BLE transceiver module, CAN communication module, and 4G communication module, facilitating calibration, fault troubleshooting, and after-sales inspection of TPMS products. It solves the problem of the single function of existing tire pressure supporting tools. Applied to the diagnosis of TPMS sensors, it can real-time monitor the tire status and give an alarm in time when problems occur, significantly improving driving safety and reducing traffic accidents caused by tire problems.

[0033] The above-described embodiments only express the implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A multifunctional network communication TPMS diagnostic instrument, characterized in that: It includes an MCU microcontroller, an adjustable low-frequency transmitting module, a 433.92M transceiver module, a BLE transceiver module, a CAN communication module, and a 4G communication module. The adjustable low-frequency transmitting module, the 433.92M transceiver module, the BLE transceiver module, the CAN communication module, and the 4G communication module are respectively connected to the MCU microcontroller, wherein the adjustable low-frequency transmitting module, the 433.92M transceiver module and the BLE transceiver module are also respectively connected to the TPMS sensors in the tires of the vehicle, the 4G communication module is also connected to the after-sales system, and the CAN communication module is connected to the vehicle system through the CAN interface.

2. A multifunctional network communication TPMS diagnostic instrument according to claim 1, characterized in that: A storage unit is also provided, and the storage unit is connected to the MCU microcontroller.

3. The multifunctional network communication TPMS diagnostic instrument according to claim 1, characterized in that: A keypad is also provided, which is connected to the MCU microcontroller and is used for inputting instructions.

4. The multifunctional network communication TPMS diagnostic instrument according to claim 2, characterized in that: An LCD display panel is also provided, and the LCD display panel is connected to the MCU microcontroller, and display data is transmitted through a display interface and displayed through the display panel.

5. The multifunctional network communication TPMS diagnostic instrument according to claim 3, characterized in that: A buzzer is also provided, and the buzzer is connected to the MCU microcontroller. The MCU microcontroller sends a sound instruction to the buzzer so that the buzzer emits a sound alarm.

6. The multifunctional network communication TPMS diagnostic instrument according to claim 4, characterized in that: It also includes a power module, which is respectively connected to the MCU microcontroller, the adjustable low-frequency transmission module, the 433.92M transceiver module, the BLE transceiver module, the CAN communication module, the 4G communication module, the storage unit, the keypad, the LCD display panel, and the buzzer.

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