A vehicle-mounted railway line irregularity detection device

Abstract

A vehicle-mounted railway line unevenness detection device belongs to the technical field of dynamic detection of railway line unevenness. It solves the problems of low precision and poor stability in the existing dynamic detection of railway line unevenness. The axle box acceleration sensor of the utility model is arranged on the axle head of the locomotive to detect the horizontal and vertical vibration acceleration of the axle box of the locomotive. The frame acceleration sensor detects the horizontal and vertical vibration acceleration of the locomotive and transmits the detected data to the vehicle-mounted board; the on-board acceleration sensor obtains the horizontal and vertical vibration acceleration of the vehicle-mounted board. The vehicle-mounted board includes a positioning unit and a communication unit. The positioning unit is used to locate the current position of the device itself, and the received detection data and positioning data are transmitted wirelessly at the same time through the communication unit. The utility model is suitable for railway line unevenness detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of dynamic detection of railway line irregularity. Background Art

[0002] In recent years, China's railway speed has been increasing, and the requirements for track smoothness have become increasingly stringent. Track unevenness is the main cause of train vibration and increased wheel-rail force, which has an important impact on driving comfort and safety, and is the main factor directly limiting the speed of the track. However, the existing detection devices have the problems of low detection accuracy and poor stability. Utility Model Content

[0003] The utility model aims to solve the problems of low precision and poor stability in the existing dynamic detection of the unevenness of railway lines. The utility model provides a vehicle-mounted railway line unevenness state detection device.

[0004] The utility model discloses a vehicle-mounted railway line irregularity state detection device, which comprises: a vehicle-mounted board, an axle box acceleration sensor, a frame acceleration sensor and a board-mounted acceleration sensor;

[0005] The axle box acceleration sensor is arranged on the axle head of the locomotive, and is used to collect the vibration acceleration data of the axle box of the locomotive in the horizontal and vertical directions, and transmit the detected data to the on-board board;

[0006] The frame acceleration sensor is set at the center axis of the locomotive or EMU to collect the horizontal and vertical vibration acceleration data of the locomotive and transmit the detected data to the on-board board;

[0007] The onboard acceleration sensor is arranged on the vehicle-mounted board and is used to obtain the vibration acceleration data of the vehicle-mounted board in the horizontal and vertical directions and transmit the collected data to the vehicle-mounted board;

[0008] The vehicle-mounted board includes a positioning unit and a communication unit. The positioning unit is used to locate the current position of the device itself, and the received collection data and positioning data are transmitted wirelessly through the communication unit at the same time.

[0009] Furthermore, in the utility model, the vehicle-mounted board also includes a DC / DC power supply module, which converts the DC power supply of the locomotive into different DC voltages to power the axle box acceleration sensor, frame acceleration sensor, onboard acceleration sensor and vehicle-mounted board.

[0010] Furthermore, in the utility model, the vehicle-mounted board also includes a processor, a USB disk management circuit, a static random access memory, an RS485 interface circuit, a USB interface circuit and an indicator light circuit;

[0011] The U disk status detection circuit is connected to the processor and is used to detect the storage of data, analysis data, positioning data, and configuration data of the U disk;

[0012] The static random access memory is connected to the processor and is used to read and write the processor cache data;

[0013] The RS485 interface circuit is connected to the processor and is used to provide a serial interface;

[0014] The USB interface circuit is connected to the processor and is used to provide a USB connection port;

[0015] The indicator light circuit is arranged between the processor and the power supply unit.

[0016] Furthermore, in the utility model, the vehicle-mounted board also includes a WIFI circuit;

[0017] The processor sends the received detection data and positioning data through the WIFI circuit, and receives data through the WIFI circuit at the same time.

[0018] Furthermore, in the utility model, the vehicle-mounted board also includes a GPRS circuit;

[0019] The GPRS circuit is connected to the processor and sends the received detection data and positioning data wirelessly.

[0020] Furthermore, in the utility model, the vehicle-mounted board also includes a satellite positioning circuit;

[0021] The satellite positioning circuit is connected to the processor and is used to locate the vehicle-mounted board.

[0022] Furthermore, in the present invention, the vehicle-mounted board is implemented using an FPGA processor.

[0023] The utility model adopts an acceleration sensor to perform vibration detection, and transmits the detected vibration data and positioning data wirelessly; it realizes the detection of whether the railway line is smooth during the operation of the locomotive, and effectively ensures the efficiency and accuracy of the detection of whether the railway line is smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a system block diagram of the utility model;

[0025] Figure 2 Schematic diagram of the FPGA core processor circuit in a specific embodiment. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0027] Specific implementation method 1: refer to Figure 1 The present embodiment is described as a vehicle-mounted railway line irregularity state detection device, which comprises: a vehicle-mounted board card 4, an axle box acceleration sensor 1, a frame acceleration sensor 2 and a board-mounted acceleration sensor 3;

[0028] The axle box acceleration sensor 1 is arranged on the axle head of the locomotive, and is used to collect the horizontal and vertical vibration acceleration data of the axle box of the locomotive, and transmit the detected data to the on-board board 4;

[0029] The frame acceleration sensor 2 is arranged at the center axis of the locomotive or EMU, and is used to collect the vibration acceleration data of the locomotive in the horizontal and vertical directions, and transmit the detected data to the on-board board 4;

[0030] The onboard acceleration sensor 3 is arranged on the onboard board 4, and is used to obtain the vibration acceleration data of the onboard board 4 in the horizontal and vertical directions, and transmit the collected data to the onboard board 4;

[0031] The vehicle-mounted board 4 includes a positioning unit and a communication unit. The positioning unit is used to locate the current position of the device itself, and the communication unit transmits the received collection data and positioning data simultaneously in a wireless manner.

[0032] Further, in the utility model, the vehicle-mounted board 4 includes a processor, a U disk status detection circuit, a static random access memory, an RS485 interface circuit, a USB interface circuit and an indicator light circuit;

[0033] The U disk status detection circuit is connected to the processor and is used to detect the status of the U disk;

[0034] The static random access memory is connected to the processor and is used to store data received by the processor;

[0035] The RS485 interface circuit is connected to the processor and is used to provide a serial interface;

[0036] The USB interface circuit is connected to the processor and is used to provide a USB connection port;

[0037] The indicator light circuit is arranged between the processor and the power supply unit.

[0038] Furthermore, in the present utility model, the vehicle-mounted board 4 also includes a WIFI circuit;

[0039] The processor sends the received detection data and positioning data through the WIFI circuit, and receives data through the WIFI circuit at the same time.

[0040] Furthermore, in the present utility model, the vehicle-mounted board 4 also includes a GPRS circuit;

[0041] The GPRS circuit is connected to the processor and sends the received detection data and positioning data wirelessly.

[0042] Furthermore, in the present utility model, the vehicle-mounted board 4 also includes a satellite positioning circuit;

[0043] The satellite positioning circuit is connected to the processor and is used to locate the vehicle-mounted board 4 .

[0044] Furthermore, in the present invention, the vehicle-mounted board 4 is implemented using an FPGA processor.

[0045] The GPRS module is used by the device to send large value information to the designated client and provide SMS alarm function; the satellite positioning module is used by the device to obtain satellite positioning data; the WIFI module is used by the device to provide a wireless data sharing platform for locomotives or EMUs; the U disk status detection circuit is used by the device to store disease information, location information, etc. in the U disk for subsequent analysis; the USB interface circuit is used for parameter configuration and equipment debugging of the device; the utility model also includes an SD card file backup circuit for the device to back up data; the body acceleration sensor is used by the device to detect horizontal and vertical vibration of the body Acceleration; The RS485 interface circuit of the utility model includes two groups of interface modules, one group of interface modules is used for the device to obtain operation data from the locomotive safety information comprehensive detection device (TAX2, TAX3 / TAX07) or the train control equipment dynamic monitoring system (DMS); the other group of interface modules is used for the device to obtain axle box and frame sensor data, and at the same time can provide a wired data sharing platform for the locomotive or EMU; SRAM and FLASH are used to store data; the power subsystem is used to provide core voltage, phase-locked loop voltage, interface voltage for FPGA, and to provide power supply voltage for peripherals.

[0046] The specific embodiment is a vehicle-mounted railway line irregularity detection device.

[0047] After the power is turned on, the device starts initialization, including the initialization of the file management module, acceleration sensor, WIFI module, LTE module circuit, static random access memory circuit, satellite positioning module circuit, USB interface circuit, RS485 interface circuit, etc.

[0048] According to the locomotive operation data, the FPGA core processes the configuration parameter data, threshold value data, and high-speed / normal-speed LKJ basic data obtained from the USB flash drive;

[0049] FPGA core processor via RS485 (specifically as Figure 2 The system periodically acquires the operation data of the locomotive or EMU (supports the locomotive safety information comprehensive detection device (TAX2 type, TAX3 / TAX07 type) and the train control equipment dynamic monitoring system (DMS)), periodically acquires the onboard horizontal and vertical vibration acceleration data through the onboard acceleration sensor, periodically acquires the axle box and structure acceleration sensor data through RS485, periodically acquires the positioning data through the satellite positioning module, periodically monitors the access point status through the WIFI module, periodically monitors the U disk connection status through the file management module, and periodically monitors the SD card connection status and network connection status through the file management module. The read / write operations of all unit modules are executed in parallel;

[0050] The FPGA core processing automatically calculates and records the disease information based on the detection and monitoring data, saves it to the U disk through the file management module, backs it up to the SD card through the file management module, uploads it to the server through the LTE module, and sends an alarm SMS to the designated mobile phone number through the LTE module. At the same time, it can share data with other wired or wireless devices through RS485 and WIFI. The shared data includes locomotive or EMU operation data and disease record data. The key parts that can be replaced by this utility model are:

[0051] Use UFS4.0 flash memory chip to replace the original file management chip and SD memory card, significantly improving the data storage rate;

[0052] Use 5G communication modules and antennas to replace the original 4G-LTE modules and antennas to increase the data transmission speed of wireless networks.

[0053] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that the features described in conjunction with a single embodiment may be used in other described embodiments.

Claims

1. A vehicle-mounted railway line irregularity detection device, characterized in that: The device comprises: a vehicle-mounted board (4), an axle box acceleration sensor (1), a frame acceleration sensor (2) and a board-mounted acceleration sensor (3); The axle box acceleration sensor (1) is arranged on the axle head of the locomotive, and is used to collect the vibration acceleration data of the axle box of the locomotive in the horizontal and vertical directions, and transmit the detected data to the on-board board (4); The frame acceleration sensor (2) is arranged at the center axis position of the locomotive or the EMU, and is used to collect vibration acceleration data of the locomotive in the horizontal and vertical directions, and transmit the detected data to the on-board board (4); An onboard acceleration sensor (3) is arranged on the onboard board (4) and is used to obtain vibration acceleration data of the onboard board (4) in the horizontal and vertical directions, and transmit the collected data to the onboard board (4); The vehicle-mounted board (4) comprises a positioning unit and a communication unit. The positioning unit is used to locate the current position of the device itself, and the communication unit transmits the received collected data and positioning data simultaneously in a wireless manner.

2. A vehicle-mounted railway line irregularity detection device according to claim 1, characterized in that: The on-board board (4) also includes a DC / DC power supply module, which converts the DC power supply of the locomotive into different DC voltages to supply power to the axle box acceleration sensor (1), the frame acceleration sensor (2), the on-board acceleration sensor (3) and the on-board board (4).

3. A vehicle-mounted railway line irregularity detection device according to claim 1 or 2, characterized in that: The vehicle-mounted board (4) also includes a processor, a USB disk management circuit, a static random access memory, an RS485 interface circuit, a USB interface circuit and an indicator light circuit; The U disk status detection circuit is connected to the processor and is used to detect the storage of data, analysis data, positioning data, and configuration data of the U disk; The static random access memory is connected to the processor and is used to read and write the processor cache data; The RS485 interface circuit is connected to the processor and is used to provide a serial interface; The USB interface circuit is connected to the processor and is used to provide a USB connection port; The indicator light circuit is arranged between the processor and the power supply unit.

4. A vehicle-mounted railway line irregularity detection device according to claim 1 or 2, characterized in that: The vehicle-mounted board (4) also includes a WIFI circuit; The processor sends the received detection data and positioning data through the WIFI circuit, and receives data through the WIFI circuit at the same time.

5. A vehicle-mounted railway line irregularity detection device according to claim 1 or 2, characterized in that: The vehicle-mounted board (4) also includes a GPRS circuit; The GPRS circuit is connected to the processor and sends the received detection data and positioning data wirelessly.

6. A vehicle-mounted railway line irregularity detection device according to claim 1 or 2, characterized in that: The vehicle-mounted board (4) also includes a satellite positioning circuit; The satellite positioning circuit is connected to the processor and is used to locate the vehicle-mounted board (4).

7. A vehicle-mounted railway line irregularity detection device according to claim 1 or 2, characterized in that: The vehicle-mounted board (4) is implemented using an FPGA processor.

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