Multifunctional integrated vehicle running state monitoring system

Abstract

A multifunctional integrated vehicle running state monitoring system comprises a shell, and a system control mainboard, a system power panel and a plurality of system acquisition boards which are arranged in the shell. According to the utility model, various vehicle operation data, such as temperature, speed and the like, can be simultaneously acquired, and the requirements of complex application scenes can be met. And secondly, data can be locally stored, remote data uploading is realized through the 4G module, and real-time monitoring and remote management are facilitated. And thirdly, the vehicle position can be accurately monitored, and the vehicle scheduling and management efficiency can be improved. In addition, the communication interface comprises the isolated RS485 interface and the non-isolated RS485 interface, so that the compatibility and the communication stability of the communication interface with external equipment are enhanced. Finally, the system can monitor the running temperature and acceleration information of the vehicle in real time, and provides comprehensive data support for ensuring the safety of the vehicle. The system is very suitable for application scenes of multi-path data acquisition and remote monitoring.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle operation state monitoring technical field, concretely relates to a multi -functional integrated vehicle operation state monitoring system. BACKGROUND

[0002] With the development of automobile industry and intelligent transportation system, the monitoring of vehicle operation state becomes increasingly important in improving driving safety, reducing maintenance cost and improving management efficiency. Traditional vehicle monitoring systems are mostly single function, usually only collecting limited operation data such as speed, fuel consumption, etc., and cannot realize comprehensive collection and remote transmission of multi-channel data. At the same time, the communication mode of existing systems is relatively single, which cannot meet the needs of complex industrial environment and different vehicle monitoring scenarios. In addition, the flexibility of data storage and the scalability of the system are also limited, which is difficult to meet the needs of modern vehicle monitoring system for diversified data collection, real-time monitoring and remote management.

[0003] In order to solve these problems, the demand for vehicle operation state monitoring system with multi-functional integration, supporting multi-channel signal collection, capable of remote data transmission and having high scalability is increasing in the market. Such system needs to be able to monitor vehicle position, running temperature and other key parameters at the same time, and can realize remote uploading and monitoring management of data through modern communication mode (such as 4G, RS485, etc.). The development of such system has important practical significance for improving vehicle management efficiency and ensuring vehicle operation safety. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a multi -functional integrated vehicle operation state monitoring system, which comprises: a shell and a system control mainboard, a system power board and a plurality of system acquisition boards arranged in the shell.

[0005] The shell is provided with power connection and program download terminals, a plurality of non-isolated 485 communication terminals, isolated 485 communication terminals, external storage interface ports, GPS modules and a plurality of data acquisition terminals.

[0006] The power connection and program download terminals are electrically connected with external PC terminals.

[0007] The system control mainboard is electrically connected with the power connection and program download terminals and receives programs downloaded by external PC terminals.

[0008] The system power board is electrically connected with the power connection and program download terminals and receives external power supply.

[0009] The non-isolated 485 communication terminals and the isolated 485 communication terminals are electrically connected with external communication equipment.

[0010] The system control mainboard is electrically connected with the non-isolated 485 communication terminal and the isolated 485 communication terminal respectively, and receives communication information of external communication equipment.

[0011] The external communication equipment uploads vehicle operation data from the system control mainboard through the non-isolated 485 communication terminal and the isolated 485 communication terminal.

[0012] The system control mainboard is electrically connected with the external storage interface port.

[0013] The external storage equipment is electrically connected with the external storage interface port, and receives vehicle operation data generated by the system control mainboard.

[0014] The system control mainboard is electrically connected with the GPS module, and the GPS module transmits a positioning signal outward.

[0015] The number of the data acquisition terminals is consistent with that of the system acquisition boards.

[0016] Different system acquisition boards are electrically connected with corresponding data acquisition terminals respectively, and collect vehicle operation state information.

[0017] The system control mainboard is electrically connected with the system acquisition board, and receives vehicle operation state information collected by the system acquisition board.

[0018] The system control mainboard and the system acquisition board are electrically connected with the system power board respectively, and receive a direct current power signal generated by the system power board.

[0019] Further, the system control mainboard comprises a system control mainboard chip, a GPS module circuit, an acceleration module circuit, a temperature sensor circuit, a 4G module circuit, an SD card storage module circuit, a 485 module circuit, a program download circuit, a acquisition board interface circuit, a USB data download circuit and an AD conversion circuit.

[0020] The GPS module circuit is electrically connected with the GPS module, and generates a positioning signal.

[0021] The system control mainboard chip is electrically connected with the GPS module circuit, and receives the positioning signal.

[0022] The 485 module circuit is electrically connected with the non-isolated 485 communication terminal and the isolated 485 communication terminal respectively.

[0023] The program download circuit is electrically connected with the power connection and program download terminal.

[0024] The system control mainboard chip is electrically connected with the program download circuit, and receives a program downloaded by an external PC terminal.

[0025] The acquisition board interface circuit is electrically connected with the system acquisition board, and generates an analog signal.

[0026] The AD conversion circuit is electrically connected with the acquisition board interface circuit, receives an analog signal, and generates a corresponding digital signal.

[0027] The system control mainboard chip is electrically connected with the AD conversion circuit, and receives the digital signal.

[0028] The acceleration module circuit is electrically connected with the system control mainboard chip, receives the digital signal, and generates a corresponding acceleration signal.

[0029] The temperature sensor circuit is electrically connected with the system control mainboard chip, receives the digital signal, and generates a corresponding temperature signal.

[0030] The system control mainboard chip receives the generated acceleration signal and temperature signal.

[0031] The SD card storage module circuit is electrically connected with the system control mainboard chip.

[0032] The external storage interface port is electrically connected with the SD card storage module circuit, receives the generated acceleration signal, temperature signal, and positioning signal.

[0033] The 4G module circuit is electrically connected with the system control mainboard chip.

[0034] The external device remotely receives the generated acceleration signal, temperature signal, and positioning signal through the 4G module circuit.

[0035] The USB data download circuit is electrically connected with the system control mainboard chip, and downloads the generated acceleration signal, temperature signal, and positioning signal.

[0036] Further, the 4G module circuit selects a composite antenna.

[0037] Further, the interface of the program download circuit selects an ST-LINK debugging download interface.

[0038] Further, the GPS module is provided with an antenna for transmitting signals outward.

[0039] The antenna selects a composite antenna.

[0040] Further, the system acquisition board is cascaded through a row of pins.

[0041] Further, the system acquisition board selects an 8-channel AD acquisition circuit.

[0042] Further, the system power board includes a power conversion circuit and a power control output circuit.

[0043] The power conversion circuit converts external power supply into a direct current power signal.

[0044] The power supply control output circuit transmits a direct current power signal to a system control mainboard.

[0045] Further, the amplitude range of the external PC power supply is 9V-16V.

[0046] Further, the amplitude of the direct current power signal includes 12V, 3.3V and 2.5V.

[0047] The technical effect of the utility model is self-evident, the multifunctional integrated vehicle running state monitoring system supports maximum 56 analog signal inputs, can simultaneously collect various vehicle running data such as temperature, speed, etc., and meets the demand of complex application scenarios.Secondly, the system is built-in with an SD card storage module, can locally store data, simultaneously realizes remote data uploading through a 4G module, and is convenient for real-time monitoring and remote management.Thirdly, the system integrates a GPS module, can accurately monitor the vehicle position, and helps to improve vehicle scheduling and management efficiency.In addition, the system provides diversified communication interfaces, including isolated and non-isolated RS485 interfaces, enhances the compatibility and communication stability with external equipment.Finally, the system also integrates a temperature sensor and a three-axis acceleration sensor, can real-time monitor the running temperature and acceleration information of the vehicle, and provides comprehensive data support for ensuring vehicle safety.These characteristics make the system very suitable for the application scenarios of multi-channel data acquisition and remote monitoring.

[0048] The utility model provides a kind of multifunctional integrated vehicle running state monitoring system, supports 56 analog signal inputs, can simultaneously collect various vehicle running data such as temperature, speed, etc., meets the demand of complex application scenarios, system is built-in with SD card storage circuit, can locally store data, simultaneously realizes remote data uploading through 4G module, and it is convenient for real-time monitoring and remote management, system integrates GPS module, can accurately monitor the vehicle position, and helps to improve vehicle scheduling and efficiency management, in addition, the utility model provides including isolated and non-isolated RS485 interfaces, enhances the compatibility and communication stability with external equipment, finally, system also integrates temperature sensor and three-axis acceleration sensor, can real-time monitor the running temperature and acceleration information of the vehicle, and provides comprehensive data support for ensuring vehicle safety. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 It is the appearance structure schematic diagram of the utility model;

[0050] Figure 2 It is the system control mainboard overall architecture diagram of the utility model;

[0051] Figure 3 It is the system power board principle view of the utility model;

[0052] Figure 4 is the system control mainboard schematic diagram of the utility model;

[0053] Figure 5 is the acquisition board circuit schematic diagram of the utility model;

[0054] In the drawing: shell 1, electricity and program download terminal 2, non-isolated 485 communication terminal 3, isolated 485 communication terminal 4, external storage interface port 5, GPS module 6, data acquisition terminal 7, system control mainboard 8, system control mainboard chip 801, GPS module circuit 802, acceleration module circuit 803, temperature sensor circuit 804, 4G module circuit 805, SD card storage module circuit 806, 485 module circuit 807, program download circuit 808, acquisition board interface circuit 809, USB data download circuit 810, AD conversion circuit 811, analog signal 812, system power board 9, system acquisition board 10. DETAILED DESCRIPTION

[0055] The utility model will be further described below in conjunction with examples, but should not be understood as the above-mentioned subject range of the utility model is limited to the following examples. According to the ordinary technical knowledge and conventional means in the art, make various substitutions and changes without departing from the above-mentioned technical thought of the utility model, all should be included in the protection scope of the utility model.

[0056] Example 1:

[0057] Referring to Figures 1 to 5 A multifunctional integrated vehicle running state monitoring system, comprising: shell 1 and the system control mainboard 8, system power board 9, a plurality of system acquisition boards 10 arranged in the shell 1.

[0058] The shell 1 is equipped with electricity and program download terminal 2, a plurality of non-isolated 485 communication terminals 3, isolated 485 communication terminals 4, external storage interface port 5, GPS module 6, a plurality of data acquisition terminals 7.

[0059] The electricity and program download terminal 2 is electrically connected with external PC end.

[0060] The system control mainboard 8 is electrically connected with electricity and program download terminal 2, and receives the program downloaded by external PC end.

[0061] The system power board 9 is electrically connected with electricity and program download terminal 2, and receives external power supply.

[0062] The non-isolated 485 communication terminal 3 and isolated 485 communication terminal 4 are electrically connected with external communication equipment.

[0063] The system control mainboard 8 is electrically connected with the non-isolated 485 communication terminal 3 and the isolated 485 communication terminal 4 respectively, and receives communication information of an external communication device.

[0064] The external communication device uploads vehicle operation data from the system control mainboard 8 through the non-isolated 485 communication terminal 3 and the isolated 485 communication terminal 4.

[0065] The system control mainboard 8 is electrically connected with the external storage interface port 5.

[0066] The external storage device is electrically connected with the external storage interface port 5, and receives vehicle operation data generated by the system control mainboard 8.

[0067] The system control mainboard 8 is electrically connected with the GPS module 6, and the GPS module 6 transmits a positioning signal.

[0068] The number of the data acquisition terminals 7 is consistent with that of the system acquisition boards 10.

[0069] Different system acquisition boards 10 are electrically connected with corresponding data acquisition terminals 7 respectively, and collect vehicle operation state information.

[0070] The system control mainboard 8 is electrically connected with the system acquisition boards 10, and receives vehicle operation state information collected by the system acquisition boards 10.

[0071] The system control mainboard 8 and the system acquisition boards 10 are electrically connected with the system power board 9 respectively, and receive a direct-current power signal generated by the system power board 9.

[0072] Embodiment 2:

[0073] A multifunctional integrated vehicle operation state monitoring system, the main technical content of which is shown in Embodiment 1, further, the system control mainboard 8 comprises a system control mainboard chip 801, a GPS module circuit 802, an acceleration module circuit 803, a temperature sensor circuit 804, a 4G module circuit 805, an SD card storage module circuit 806, a 485 module circuit 807, a program download circuit 808, an acquisition board interface circuit 809, a USB data download circuit 810, and an AD conversion circuit 811.

[0074] The GPS module circuit 802 is electrically connected with the GPS module 6, and generates a positioning signal.

[0075] The system control mainboard chip 801 is electrically connected with the GPS module circuit 802, and receives the positioning signal.

[0076] The 485 module circuit 807 is electrically connected with the non-isolated 485 communication terminal 3 and the isolated 485 communication terminal 4 respectively.

[0077] The program download circuit 808 is electrically connected with the power connection and program download terminal 2.

[0078] The system control mainboard chip 801 is electrically connected with the program download circuit 808, and receives the program downloaded by the external PC.

[0079] The acquisition board interface circuit 809 is electrically connected with the system acquisition board 10, and generates an analog signal 812.

[0080] The AD conversion circuit 811 is electrically connected with the acquisition board interface circuit 809, receives the analog signal 812, and generates a corresponding digital signal.

[0081] The system control mainboard chip 801 is electrically connected with the AD conversion circuit 811, and receives the digital signal.

[0082] The acceleration module circuit 803 is electrically connected with the system control mainboard chip 801, receives the digital signal, and generates a corresponding acceleration signal.

[0083] The temperature sensor circuit 804 is electrically connected with the system control mainboard chip 801, receives the digital signal, and generates a corresponding temperature signal.

[0084] The system control mainboard chip 801 receives the generated acceleration signal and temperature signal.

[0085] The SD card storage module circuit 806 is electrically connected with the system control mainboard chip 801.

[0086] The external storage interface port 5 is electrically connected with the SD card storage module circuit 806, and receives the generated acceleration signal, temperature signal, and positioning signal.

[0087] The 4G module circuit 805 is electrically connected with the system control mainboard chip 801.

[0088] The external device remotely receives the generated acceleration signal, temperature signal, and positioning signal through the 4G module circuit 805.

[0089] The USB data download circuit 810 is electrically connected with the system control mainboard chip 801, and downloads the generated acceleration signal, temperature signal, and positioning signal.

[0090] Embodiment 3:

[0091] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 1 to 2, further, the 4G module circuit 805 selects a composite antenna.

[0092] Embodiment 4:

[0093] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 1 to 3, further, the interface of the program download circuit 808 selects the ST-LINK debugging download interface.

[0094] Embodiment 5:

[0095] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 1 to 4, further, the GPS module 6 is provided with an antenna for transmitting signals outward.

[0096] The antenna selects a composite antenna.

[0097] Embodiment 6:

[0098] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 1 to 5, further, the system acquisition board 10 is cascaded through the row pin.

[0099] Embodiment 7:

[0100] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 1 to 6, further, the system acquisition board 10 selects an 8-channel AD acquisition circuit.

[0101] Embodiment 8:

[0102] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 1 to 7, further, the system power board 9 includes a power conversion circuit and a power control output circuit.

[0103] The power conversion circuit converts external power supply into a direct current power signal.

[0104] The power control output circuit transmits the direct current power signal to the system control mainboard 8.

[0105] Embodiment 9:

[0106] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 1 to 8, further, the amplitude range of the external PC end power supply is 9V-16V.

[0107] Embodiment 10:

[0108] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 1 to 9, further, the amplitude of the direct current power signal includes 12V, 3.3V, 2.5V.

[0109] Embodiment 11:

[0110] SeeFigures 1 to 5 A multifunctional integrated vehicle running state monitoring system, comprising: a shell 1 and a system control mainboard 8, a system power board 9, and a plurality of system acquisition boards 10 arranged in the shell 1.

[0111] The shell 1 is provided with an electricity connection and program download terminal 2, a plurality of non-isolated 485 communication terminals 3, isolated 485 communication terminals 4, an external storage interface port 5, a GPS module 6, and a plurality of data acquisition terminals 7.

[0112] The electricity connection and program download terminal 2 is electrically connected with an external PC terminal.

[0113] The system control mainboard 8 is electrically connected with the electricity connection and program download terminal 2 to receive programs downloaded by the external PC terminal.

[0114] The system power board 9 is electrically connected with the electricity connection and program download terminal 2 to receive external power supply.

[0115] The non-isolated 485 communication terminals 3 and the isolated 485 communication terminals 4 are electrically connected with external communication equipment.

[0116] The system control mainboard 8 is electrically connected with the non-isolated 485 communication terminals 3 and the isolated 485 communication terminals 4 to receive communication information from the external communication equipment.

[0117] The external communication equipment uploads vehicle running data from the system control mainboard 8 through the non-isolated 485 communication terminals 3 and the isolated 485 communication terminals 4.

[0118] The system control mainboard 8 is electrically connected with the external storage interface port 5.

[0119] An external storage device is electrically connected with the external storage interface port 5 to receive vehicle running data generated by the system control mainboard 8.

[0120] The system control mainboard 8 is electrically connected with the GPS module 6, and the GPS module 6 transmits positioning signals to the outside.

[0121] The data acquisition terminals 7 are consistent in number with the system acquisition boards 10.

[0122] Different system acquisition boards 10 are electrically connected with corresponding data acquisition terminals 7 to collect vehicle running state information.

[0123] The system control mainboard 8 is electrically connected with the system acquisition boards 10 to receive vehicle running state information collected by the system acquisition boards 10.

[0124] The system control mainboard 8 and the system acquisition boards 10 are electrically connected with the system power board 9 to receive direct current power signals generated by the system power board 9.

[0125] The system control mainboard 8, the system power board 9, and the plurality of system acquisition boards 10 are arranged horizontally and spaced apart.

[0126] Embodiment 12:

[0127] A multifunctional integrated vehicle operating state monitoring system, the main technical content of which is shown in Embodiment 11, further, the system control mainboard 8 comprises a system control mainboard chip 801, a GPS module circuit 802, an acceleration module circuit 803, a temperature sensor circuit 804, a 4G module circuit 805, an SD card storage module circuit 806, a 485 module circuit 807, a program download circuit 808, an acquisition board interface circuit 809, a USB data download circuit 810, and an AD conversion circuit 811.

[0128] The GPS module circuit 802 is electrically connected with the GPS module 6 to generate a positioning signal.

[0129] The system control mainboard chip 801 is electrically connected with the GPS module circuit 802 to receive the positioning signal.

[0130] The 485 module circuit 807 is electrically connected with the non-isolated 485 communication terminal 3 and the isolated 485 communication terminal 4, respectively.

[0131] The program download circuit 808 is electrically connected with the power connection and program download terminal 2.

[0132] The system control mainboard chip 801 is electrically connected with the program download circuit 808 to receive the program downloaded by the external PC terminal.

[0133] The acquisition board interface circuit 809 is electrically connected with the system acquisition board 10 to generate an analog signal 812.

[0134] The AD conversion circuit 811 is electrically connected with the acquisition board interface circuit 809 to receive the analog signal 812 and generate a corresponding digital signal.

[0135] The system control mainboard chip 801 is electrically connected with the AD conversion circuit 811 to receive the digital signal.

[0136] The acceleration module circuit 803 is electrically connected with the system control mainboard chip 801 to receive the digital signal and generate a corresponding acceleration signal.

[0137] The temperature sensor circuit 804 is electrically connected with the system control mainboard chip 801 to receive the digital signal and generate a corresponding temperature signal.

[0138] The system control mainboard chip 801 receives the generated acceleration signal and temperature signal.

[0139] The SD card storage module circuit 806 is electrically connected with the system control mainboard chip 801.

[0140] The external storage interface port 5 is electrically connected with the SD card storage module circuit 806, and receives the generated acceleration signal, temperature signal and positioning signal.

[0141] The 4G module circuit 805 is electrically connected with the system control mainboard chip 801.

[0142] The external device remotely receives the generated acceleration signal, temperature signal and positioning signal through the 4G module circuit 805.

[0143] The USB data download circuit 810 is electrically connected with the system control mainboard chip 801, and downloads the generated acceleration signal, temperature signal and positioning signal.

[0144] The system control mainboard chip 801 adopts the ultra-low power consumption microcontroller STM32L431RCT6 chip with ARM Cortex-M4 core launched by ST company, with 80M main frequency, LQFP64 package, 256K internal Flash storage, 32K internal SRAM, supporting multiple low power consumption modes such as stop mode, standby mode and sleep mode, and being suitable for battery-powered devices.

[0145] The system control mainboard schematic diagram is as shown in Figure 4 The pin PC0-PC6 of the processor are respectively made as the chip selection line numbers of the acquisition board P2, the acquisition board interface P2 is connected with 12V, 3.3V and 2.5V power supply, the pin 8 of the acquisition board interface P2 is grounded, the pin PA5-PA7 of the processor are respectively connected with the pin 14, 10 and 12 of the acquisition board interface P2; the pin PB10 and PB11 of the processor are respectively made as the RXD and TXD line numbers of the isolated 485 communication module, the pin PB8 and PB9 of the processor are respectively made as the RXD and TXD line numbers of the non-isolated 485 communication module, the 485 module is powered by the power module 3.3V; the pin PA9 and PA10 of the processor are respectively made as the RX and TX line numbers of the 4G module; the pin PB12, PB13, PB14 and PB15 of the processor are respectively made as the CS, CLK, DO and DI line numbers of the SD card module; the pin PA2 and PA3 of the processor are respectively made as the RX and TX line numbers of the GPS module; the pin PA4 of the processor is made as the DQ line number of the temperature sensor (DS18B20), and the pull-up resistor R25 is added between the pin DQ and the pin VDD of the temperature sensor (DS18B20) to make the data bus high level, so as to ensure the normal communication of the single bus protocol; the pin PA15, PA11 and PA12 of the processor are respectively made as the SCL, SDA and DSO line numbers of the acceleration sensor, and the pin PC7 and PC8 of the processor are made as the CS chip selection line numbers of the acceleration sensor.

[0146] Embodiment 13

[0147] A multifunctional integrated vehicle running state monitoring system, the main technical content of which is seen in any one of embodiments 11 to 12, further, the 4G module circuit 805 selects a composite antenna.

[0148] Embodiment 14

[0149] A multifunctional integrated vehicle running state monitoring system, the main technical content of which is seen in any one of embodiments 11 to 13, further, the interface of the program download circuit 808 selects an ST-LINK debugging download interface.

[0150] Embodiment 15

[0151] A multifunctional integrated vehicle running state monitoring system, the main technical content of which is seen in any one of embodiments 11 to 14, further, the GPS module 6 is provided with an antenna for transmitting signals outward.

[0152] The antenna selects a composite antenna.

[0153] Embodiment 16

[0154] A multifunctional integrated vehicle running state monitoring system, the main technical content of which is seen in any one of embodiments 11 to 15, further, the system acquisition board 10 is cascaded through the row pin.

[0155] Embodiment 17

[0156] A multifunctional integrated vehicle running state monitoring system, the main technical content of which is seen in any one of embodiments 11 to 16, further, the system acquisition board 10 selects an 8-channel AD acquisition circuit.

[0157] The acquisition board circuit principle diagram is shown in Figure 5 The row plug P3 acquisition analog signal connection resistor 22R is connected to the AD chip U1, the AD chip U1 output is connected to a 1k resistor, and the 1k resistor is connected to the row plug P1 and P2.

[0158] Embodiment 18

[0159] A multifunctional integrated vehicle running state monitoring system, the main technical content of which is seen in any one of embodiments 11 to 17, further, the system power board 9 includes a power conversion circuit and a power control output circuit.

[0160] The power conversion circuit converts external power supply into a direct current power signal.

[0161] The power control output circuit transmits the direct current power signal to the system control mainboard 8.

[0162] The system power board schematic diagram is shown as Figure 3 The specific circuit relationship includes: the external input voltage is connected to the fuse F1, the fuse F1 is connected to the diode D2, the diode D2 is connected to the inductor L1, the inductor L1 is connected to the MOS tube Q1, the MOS tube Q1 is connected to the power chip U1 output 12V stable direct current; 12V to 3V circuit, the first circuit 12V output is connected to the power chip U2, the power chip U2 pin SW is connected to the inductor L2, the inductor L2 is connected to the resistor R6, R10, R11, and the output 3.3V voltage is connected to the capacitor C10 ground; 3.3V to 2.5V circuit, the second circuit 3.3V output is connected to the power chip U3, and the power chip U3 output pin OUT outputs the voltage 2.5V connected to the capacitor C21, C22 ground.

[0163] Embodiment 19:

[0164] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 11 to 18, further, the amplitude range of the external PC power supply is 9V-16V.

[0165] Embodiment 20:

[0166] A multifunctional integrated vehicle running state monitoring system, the main technical content is seen in any one of embodiments 11 to 19, further, the amplitude of the DC power signal includes 12V, 3.3V, 2.5V.

[0167] Embodiment 21:

[0168] Referring to Figures 1 to 5 A multifunctional integrated vehicle running state monitoring system, comprising a shell 1 and a system power board 9, a system control mainboard 8 and a system acquisition board 10 arranged therein; The shell 1 is provided with an input terminal connection and program download terminal 2 connected with the system power board, a non-isolated 485 communication terminal 3, an isolated 485 communication terminal 4, an external storage interface port 5, a data acquisition terminal 7 and a GPS module installation position 6; The system control mainboard 8 is connected with the system power board 9 and the system acquisition board 10 respectively, the power connection and program download terminal 2 and the system power board 9 are connected with the system control mainboard 8, the non-isolated 485 communication terminal 3, the isolated 485 communication terminal 4 and the GPS module are connected with the system control mainboard 8, and the data acquisition terminal 7 is connected with the system acquisition board 10.

[0169] The system power board 9 input voltage is connected through a fuse F1, and after being divided by resistors R29 and R30, a 12V voltage is output through diode D3. The pin 12 of the chip U1 of the system power board 9 is connected to the 12V voltage, and after being connected to the ground through a capacitor C29 between the pins 15 and 16 of the chip U1, the pins 1, 2 and 3 of the chip U1 are connected in parallel to an inductor L1. The pin 4 of the chip U1 is connected to a resistor R32 and then connected to the inductor L1. After the inductor L1, the divided resistors R36 and R37 output a 3.3V voltage, which is connected to the ground through a capacitor C32.

[0170] The system control mainboard 8 includes a system control mainboard chip U6 connected to a GPS module circuit 802, an acceleration module circuit 803, a temperature sensor circuit 804, a 4G module circuit 805, an SD card storage module circuit 806, a 485 module circuit 807, a USB data download circuit 810, and a system acquisition board interface circuit 809 connected to the system acquisition board 10.

[0171] The system acquisition board 10 includes an acquisition board AD chip U1 signal pin connected to a 22R resistor, and an external acquisition analog signal is connected. The CS pin of the chip U1 is connected to a pin P1, and the rest of the system acquisition board 10 is connected in cascade through a pin P2, and the chip selection of the system acquisition board 10 is controlled by the system control mainboard chip 801.

[0172] The GPS 802 and the 4G 805 use a composite antenna, which supports GPS and 4G communication at the same time, and are connected to the pins 16, 17 and 42, 43 of the chip 801, respectively.

[0173] The acceleration module 803 pins 3, 4 and 5 are connected to the pins 50, 44 and 45 of the chip 801, respectively.

[0174] The temperature sensor 804 pin DQ is connected to the pin 20 of the chip 801, the temperature sensor 804 pin VDD is connected to a 3.3V power supply, and then the two ends are connected in parallel to a resistor R25.

[0175] The SD card storage module circuit 806 stores the acquisition data in an SD card and can also download data through a USB.

[0176] The 485 module circuit 807 is divided into a non-isolated 485 and an isolated 485, which are used for communication between devices.

[0177] The program download circuit 808 interface is an ST-LINK debugging download interface.

[0178] Example 22:

[0179] Referring to Figures 1 to 5The utility model relates to a multifunctional integrated vehicle running state monitoring system, and the main technical content comprises:

[0180] A multifunctional integrated vehicle running state monitoring system, comprising a shell and system control mainboard circuit, system power board circuit and system acquisition board circuit arranged in the shell, wherein the shell is provided with an input terminal, an analog signal acquisition terminal and a 485 communication terminal connected with the internal circuit.

[0181] The system control mainboard circuit comprises an analog conversion circuit responsible for analog signal conversion, a 485 communication circuit, an SD card storage circuit, a 4G module circuit connected with the chip, an SD card storage circuit, a GPS and 4G module circuit, a temperature acquisition circuit, an acceleration sensor circuit and a 485 communication circuit.

[0182] The system power board circuit comprises an input voltage connected through a 3A fuse F1, a 12V voltage output after being divided by resistors R29 and R30 and being connected to a diode D3, a 12V voltage connected to a power supply chip pin 12, a grounding after being connected to a capacitor C29 between the power supply chip pins 15 and 16, a grounding after being connected to an inductor L1 in parallel with the power supply chip pins 1, 2 and 3, a connection between the power supply chip pin 4 and the inductor L1 after being connected to a resistor R32, a 3.3V voltage output after being connected to voltage dividing resistors R36 and R37 and being connected to a capacitor C32.

[0183] The system acquisition board circuit comprises a 22R resistor connected to the signal pin of an acquisition board AD processing chip, an external analog signal connected to the chip CS pin, a pin P1 connected to the rest of the system acquisition board through a pin P2 for cascading, a chip selection of the system acquisition board through a system control mainboard chip, and a highest support of 56 analog signal acquisition.

[0184] The 4G module circuit and the GPS module circuit antenna adopt a composite antenna, which supports GPS and 4G communication at the same time.

[0185] The SD card storage circuit stores the collected data and comprises a USB reading circuit.

[0186] The temperature sensor circuit pin DQ is connected to the main control board chip pin 20, the temperature sensor pin VDD is connected to a 3.3V power supply, and then the two ends are connected in parallel with a resistor R25.

[0187] The acceleration sensor circuit integrates XYZ three-direction acceleration chips and is used for monitoring the three-direction acceleration of a vehicle.

[0188] The 485 communication circuit is provided with 4 non-isolated 485 communication circuits and 1 isolated 485 circuit, which are connected through the row pin P1, and the circuit connection includes that the PB10 and PB11 pins of the processor are respectively connected with the output pins RXD, TXD and GND of the isolated RS485 serial port chip to form an isolated RS485 interface circuit; the PB8 and PB9 pins of the processor are respectively connected with the output pins RO, DI and GND of the non-isolated RS485 serial port chip to form a non-isolated RS485 interface circuit.

[0189] The power supply panel power supply port voltage is direct current between 9-16v.

[0190] The program debugging download interface is an ST-LINK debugging download interface.

[0191] The wiring end is 1 power supply and program download wiring end, 4 non-isolated 485 communication wiring ends, 1 isolated 485 communication wiring end, 1 USB storage data download wiring end, 1 GPS module mounting hole and 7 analog signal acquisition wiring ends.

[0192] Embodiment 23:

[0193] Referring to Figures 1 to 5 , a multifunctional integrated vehicle running state monitoring system mainly includes the following technical contents: a shell 1 and a system power supply panel 9, a system control mainboard 8 and a system acquisition panel 10 arranged in the shell 1; the shell 1 is provided with an input terminal power connection and program download terminal 2, a non-isolated 485 communication terminal 3, an isolated 485 communication terminal 4, an external storage interface port 5, a data acquisition terminal 7 and a GPS module mounting position 6 connected with the system power supply panel; the system control mainboard 8 is connected with the system power supply panel 9 and the system acquisition panel 10 respectively, the terminal power connection and program download terminal 2 and the system power supply panel 9 are connected with the system control mainboard 8, the non-isolated 485 communication terminal 3, the isolated 485 communication terminal 4 and the GPS module are connected with the system control mainboard 8, and the data acquisition terminal 7 is connected with the system acquisition panel 10.

[0194] The overall architecture diagram of the system control mainboard 8 is shown in Figure 2 , and specifically includes: the system control mainboard chip 801 is connected with a 4G module circuit 805, an SD card storage module circuit 806, a GPS module circuit 802, a temperature sensor circuit 804, an acceleration module circuit 803 and a 485 module circuit 807 respectively, the system control mainboard chip 801 is connected with an analog signal AD conversion circuit, contains 56 general signal channels 809, and the system control mainboard chip 801 is provided with a USB data download interface 808.

[0195] The system control mainboard chip 801 adopts the STM32L431RCT6 chip of the ARM Cortex-M4 core ultra-low power microcontroller of ST company, 80M main frequency, LQFP64 package, 256K internal flash memory, 32K internal SRAM, supports various low power modes such as stop mode, standby mode and sleep mode, and is suitable for battery powered devices.

[0196] The system power board schematic diagram is shown in Figure 3 The specific circuit relationship includes: the external input voltage is connected to the fuse F1, the fuse F1 is connected to the diode D2, the diode D2 is connected to the inductor L1, the inductor L1 is connected to the MOS tube Q1, the MOS tube Q1 is connected to the power supply chip U1, and the output 12V stable voltage direct current is output; 12V to 3V circuit, the first circuit 12V output is connected to the power supply chip U2, the power supply chip U2 pin SW is connected to the inductor L2, the inductor L2 is connected to the resistor R6, R10, R11, and the output 3.3V voltage is connected to the capacitor C10 ground; 3.3V to 2.5V circuit, the second circuit 3.3V output is connected to the power supply chip U3, and the output pin OUT of the power supply chip U3 is connected to the capacitor C21, C22 ground.

[0197] The system control mainboard schematic diagram is shown in Figure 4 The pin PC0-PC6 of the processor is respectively made as the collection board P2 chip selection line number, the collection board interface P2 is connected to 12V, 3.3V, 2.5V power supply, the collection board interface P2 pin 8 is grounded, the pin PA5-PA7 of the processor is respectively connected to the collection board interface P2 pin 14, 10, 12; The pin PB10, PB11 of the processor is respectively made as the isolation 485 communication module RXD, TXD line number, the pin PB8, PB9 of the processor is respectively made as the non-isolation 485 communication module RXD, TXD line number, and the 485 module is powered by the power module 3.3V; The pin PA9, PA10 of the processor is respectively made as the 4G module RX, TX line number; The pin PB12, PB13, PB14, PB15 of the processor is respectively made as the SD card module CS, CLK, DO, DI line number; The pin PA2, PA3 of the processor is respectively made as the GPS module RX, TX line number; The pin PA4 of the processor is made as the temperature sensor (DS18B20) DQ line number, and the pull-up resistor R25 is added between the temperature sensor (DS18B20) pin DQ and pin VDD to make the data bus high level, so as to ensure the normal communication of the single bus protocol; The pin PA15, PA11, PA12 of the processor is respectively made as the acceleration sensor SCL, SDA, DSO line number, and the pin PC7, PC8 of the processor is made as the acceleration sensor CS chip selection line number.

[0198] The collection board circuit schematic diagram is shown in Figure 5As shown, the analog signal connection resistor 22R of the collection plug P3 is connected to the AD chip U1, and the AD chip U1 is connected to the 1k resistor, which is connected to the collection plugs P1 and P2.

[0199] The workflow of the embodiment is as follows:

[0200] The power supply and program download terminal 2 is connected to the power supply and PC program download terminal, the internal circuit is powered through the terminal 2, the system power board is converted into 3.3V and 2.5V for powering each chip and sensor, the program is downloaded into the main control chip through the ST-LINK debugging interface of the system control mainboard through the terminal 2, when the system is running normally, the LED lamp D1 is red and the LED lamp D2 is green.

[0201] The user inputs the analog quantity to be collected (such as vehicle speed, brake pressure, vehicle body vibration acceleration, etc.) through the data collection terminal 7 through the cable, then the analog signal is converted into digital signal through the internal AD chip and output to the system control mainboard processor, and the collected data (acceleration data, temperature data) is stored in the SD card through the processor, when the data meets the sending condition (sending every hour or sending when the size exceeds a certain value), the 4G module is started; when 485 communication is needed, the non-isolated 485 communication terminal 3 and the isolated 485 communication terminal 4 can be connected to the external equipment for communication through the cable.

[0202] The GPS module is calibrated once every 24 hours to realize the vehicle positioning function.

Claims

1. A multi-functional integrated vehicle operation status monitoring system, characterized in that, include: The outer casing (1) and the system control motherboard (8), system power board (9), and several system acquisition boards (10) arranged inside the outer casing (1); The outer casing (1) is provided with a power connection and program download terminal (2), several non-isolated 485 communication terminals (3), isolated 485 communication terminals (4), an external storage interface port (5), a GPS module (6), and several data acquisition terminals (7); The power connection and program download terminal (2) is electrically connected to an external PC. The system control motherboard (8) is electrically connected to the power-on and program download terminal (2) to receive programs downloaded from an external PC. The system power board (9) is electrically connected to the power connection and program download terminal (2) and receives external power supply; The non-isolated 485 communication terminal (3) and the isolated 485 communication terminal (4) are electrically connected to external communication equipment; The system control motherboard (8) is electrically connected to the non-isolated 485 communication terminal (3) and the isolated 485 communication terminal (4) respectively, and receives communication information from external communication devices; The external communication device uploads vehicle operation data from the system control motherboard (8) through the non-isolated 485 communication terminal (3) and the isolated 485 communication terminal (4); The system control motherboard (8) is electrically connected to the external storage interface port (5); The external storage device is electrically connected to the external storage interface port (5) and receives vehicle operation data generated by the system control motherboard (8); The system control motherboard (8) is electrically connected to the GPS module (6), and the GPS module (6) transmits positioning signals to the outside. The number of data acquisition terminals (7) is the same as the number of system acquisition boards (10); Different system acquisition boards (10) are electrically connected to the corresponding data acquisition terminals (7) to collect vehicle operating status information; The system control motherboard (8) is electrically connected to the system acquisition board (10) and receives vehicle operating status information collected by the system acquisition board (10); The system control motherboard (8) and the system acquisition board (10) are electrically connected to the system power board (9) respectively, and receive the DC power signal generated by the system power board (9).

2. The multi-functional integrated vehicle operation status monitoring system according to claim 1, characterized in that, The system control motherboard (8) includes a system control motherboard chip (801), a GPS module circuit (802), an acceleration module circuit (803), a temperature sensor circuit (804), a 4G module circuit (805), an SD card storage module circuit (806), a 485 module circuit (807), a program download circuit (808), a data acquisition board interface circuit (809), a USB data download circuit (810), and an AD conversion circuit (811). The GPS module circuit (802) is electrically connected to the GPS module (6) to generate a positioning signal; The system control motherboard chip (801) is electrically connected to the GPS module circuit (802) to receive positioning signals; The 485 module circuit (807) is electrically connected to the non-isolated 485 communication terminal (3) and the isolated 485 communication terminal (4), respectively; The program download circuit (808) is electrically connected to the power supply and program download terminal (2); The system control motherboard chip (801) is electrically connected to the program download circuit (808) and receives programs downloaded from an external PC. The acquisition board interface circuit (809) is electrically connected to the system acquisition board (10) to generate analog signals (812); The AD conversion circuit (811) is electrically connected to the acquisition board interface circuit (809), receives analog signals (812), and generates corresponding digital signals; The system control motherboard chip (801) is electrically connected to the AD conversion circuit (811) to receive digital signals; The acceleration module circuit (803) is electrically connected to the system control motherboard chip (801), receives digital signals, and generates corresponding acceleration signals; The temperature sensor circuit (804) is electrically connected to the system control motherboard chip (801), receives digital signals, and generates corresponding temperature signals; The system control motherboard chip (801) receives the generated acceleration signal and temperature signal; The SD card storage module circuit (806) is electrically connected to the system control motherboard chip (801); The external storage interface port (5) is electrically connected to the SD card storage module circuit (806) and receives the generated acceleration signal, temperature signal and positioning signal; The 4G module circuit (805) is electrically connected to the system control motherboard chip (801); External devices can remotely receive the generated acceleration signal, temperature signal and positioning signal through the 4G module circuit (805); The USB data download circuit (810) is electrically connected to the system control motherboard chip (801) to download the generated acceleration signal, temperature signal and positioning signal.

3. The multifunctional integrated vehicle operation status monitoring system according to claim 2, characterized in that, The 4G module circuit (805) uses a composite antenna.

4. The multi-functional integrated vehicle operation status monitoring system according to claim 2, characterized in that, The interface of the program download circuit (808) is the ST-LINK debug download interface.

5. The multifunctional integrated vehicle operation status monitoring system according to claim 1, characterized in that, The GPS module (6) is equipped with an antenna for transmitting signals outward; The antenna used is a composite antenna.

6. The multi-functional integrated vehicle operation status monitoring system according to claim 1, characterized in that, The system acquisition board (10) is cascaded via pin headers.

7. The multi-functional integrated vehicle operation status monitoring system according to claim 1, characterized in that, The system acquisition board (10) uses an 8-channel AD acquisition circuit.

8. The multifunctional integrated vehicle operation status monitoring system according to claim 1, characterized in that, The system power board (9) includes a power conversion circuit and a power control output circuit; The power conversion circuit converts external power supply into a DC power signal. The power control output circuit transmits the DC power signal to the system control motherboard (8).

9. The multifunctional integrated vehicle operation status monitoring system according to claim 1, characterized in that, The external PC power supply has an amplitude range of 9V-16V.

10. A multifunctional integrated vehicle operation status monitoring system according to claim 1, characterized in that, The amplitude of the DC power supply signal includes 12V, 3.3V, and 2.5V.

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