Axle counting sensor aging monitoring device

Abstract

The utility model discloses an aging monitoring device for an axle counting sensor. The aging monitoring device comprises a plurality of aging acquisition boards, a converter connected with the aging acquisition boards through a CAN bus, a switch connected with the converter, and a step-in high and low temperature test box used for providing a high and low temperature test environment for the axle counting sensor, the monitoring device can collect state information of the axle counting sensor in real time, record module value voltage curves of each sensor at different temperatures in real time, facilitate screening of sensors which do not meet requirements, collect data of different temperature working conditions of the axle counting sensor, and improve the detection accuracy of the axle counting sensor. And analysis of fault reasons of the axle counting sensor under different temperature working conditions is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit technical field, concretely relates to a kind of axle counter sensor aging monitoring devices. BACKGROUND

[0002] Axle counter sensor is also called wheel sensor, it is installed in railway steel rail for supervising the number of train wheel, it is the signal equipment widely used in railway, but limited by condition, the following difficulties are not easy to solve in production process:

[0003] Sensor aging before factory delivery is an important link to guarantee sensor field application, however, current sensor aging can only carry out high-low temperature test, and after test, its index is monitored, lacking of collecting, monitoring and judging the data of sensor in test process, it is more difficult to screen sensor in early stage under different temperature conditions. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of axle counter sensor aging monitoring device to solve the problem of lacking real-time data acquisition, monitoring and judging in the aging process of axle counter sensor in prior art.

[0005] The technical scheme that the utility model solves the above technical problem is as follows: a kind of axle counter sensor aging monitoring device, comprising:

[0006] Aging acquisition board, aging acquisition board is connected with the axle counter sensor signal by tail cable, and aging acquisition board is used to power axle counter sensor, and the current signal fed back by axle counter sensor is converted into voltage signal, voltage signal is handled and analog-digital converted simultaneously, and is exported through CAN bus;

[0007] Converter, converter is connected with the aging acquisition board by CAN bus, and the CAN bus data of aging acquisition board is received by converter, and is exported through network interface after packing;

[0008] Switch, switch is connected with converter by network cable, and is used to exchange network data;

[0009] Walk-in high-low temperature test box, walk-in high-low temperature test box is connected with switch and is used to provide high-low temperature test environment for axle counter sensor;

[0010] And cabinet, aging acquisition board, converter, switch are respectively installed in the inside of cabinet.

[0011] Further, it further includes remote server, remote server is connected with switch and communicates.

[0012] Further, it further includes host computer one, host computer one is connected with switch and communicates, and host computer is located in the inside of cabinet.

[0013] Further, the host computer one is also in communication connection with a display, and the display is located inside the cabinet.

[0014] Further, the host computer two is also included, and the host computer two is in communication connection with the switch, and the host computer two is in communication connection with a display screen, and the host computer two and the display screen are located outside the cabinet.

[0015] Further, the walk-in high and low temperature test chamber and the remote server are respectively located outside the cabinet.

[0016] Further, the converter adopts a CAN-RJ45 converter.

[0017] Further, the axle counting sensor adopts a CC200K wheel sensor.

[0018] The utility model has the following beneficial effects: a kind of axle counting sensor aging monitoring device provided by the utility model, the monitoring device can real-time acquisition axle counting sensor state information, real-time record the modulus voltage curve of each sensor at different temperatures, it is favorable to the sensor that does not meet the requirement is screened, to ensure that the sensor that leaves factory meets design temperature drift requirement, improve product leaving factory quality, reduce use field maintenance cost.And, the monitoring device can collect the data of different temperature conditions of axle counting sensor, it is favorable to the analysis of the failure reason of axle counting sensor at different temperature conditions. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is structural block diagram of the utility model;

[0020] Fig. 2 It is signal acquisition architecture diagram between aging acquisition board and axle counting sensor in the utility model;

[0021] Fig. 3 It is hardware structure design drawing in the utility model;

[0022] Figs. 1-3 The reference signs shown in the drawings respectively represent: 1-aging acquisition board, 2-converter, 3-switch, 4-walk-in high and low temperature test chamber, 5-cabinet, 6-remote server, 7-host computer one, 8-display, 9-host computer two, 10-display screen. DETAILED DESCRIPTION

[0023] The principle and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model, and not used to limit the scope of the utility model.

[0024] As Figs. 1-3As shown, an axle sensor aging monitoring device includes a plurality of aging acquisition boards 1, which are connected to the axle sensor signal through the tail cable, and are used to supply power to the axle sensor and convert the current signal fed back by the axle sensor into a voltage signal, process and analog-digital convert the voltage signal, and output through the CAN bus. The aging acquisition board 1 can be multiple, and the axle sensor uses a CC200K wheel sensor. As shown in the figure, Fig. 1 As shown, the aging acquisition board 1 is connected to the outside through J1, J2,..., J(2N-1), J(2N) interfaces. Each aging acquisition board 1 is connected to the CAN bus through two lines CAN_H and CAN_L. The CAN bus is a multi-master serial bus standard for connecting electronic control units, with high reliability and real-time performance. In this device, the CAN bus is used to connect the aging acquisition board 1 and the converter 2.

[0025] The device is provided with a converter 2, the number of which matches the number of the aging acquisition board 1. The converter 2 is connected to the aging acquisition board 1 through the CAN bus. The converter 2 receives the CAN bus data of the aging acquisition board 1 and outputs it through the network interface after packaging. The converter 2 uses a CAN-RJ45 converter 2. Each converter 2 connects two CAN buses CAN_H and CAN_L. The converter 2 converts the signal of the CAN bus into an RJ45 interface signal, so as to realize remote transmission of data through the network cable.

[0026] The device also includes a switch 3 connected to the converter 2 through a network cable and used for switching network data. The switch 3 is the core device in the network, used for connecting different network devices and forwarding data packets according to the MAC address. In this device, the switch 3 is connected to multiple network cables, including network cables from the CAN RJ45 converter 2 and network cables connected to the upper computer.

[0027] In addition, the device also includes a walk-in high-low temperature test box 4, which is in communication connection with the switch 3 and is used to provide a high-low temperature test environment for the axle sensor.

[0028] The aging acquisition board 1, the converter 2, and the switch 3 are respectively installed inside the cabinet 5 to ensure safety performance. The walk-in high-low temperature test box 4 and the remote server 6 are respectively located outside the cabinet 5.

[0029] In addition, the device also includes a remote server 6, which is in communication connection with the switch 3. The remote server 6 is used for data storage, remote monitoring and management of the entire system.

[0030] Further, the system also comprises host computer one 7 and host computer two 9. The host computer one 7 is in communication connection with the switch 3 and is located inside the cabinet 5. The host computer one 7 is also in communication connection with a display 8, which is located inside the cabinet 5. The host computer two 9 is in communication connection with the switch 3 and is in communication connection with a display screen 10. The host computer two 9 and the display screen 10 are located outside the cabinet 5. The communication connection is preferably achieved by network cable connection. The host computer one 7 and the host computer two 9 are used for real-time display, recording and judgment of the collected data. The display 8 is in direct communication connection with the host computer one 7 and is mainly used for displaying data from the host computer one 7 inside the cabinet 5. The data usually includes real-time feedback of the axle sensor, current / voltage conversion results during the aging process, digital signals after analog-to-digital conversion, etc. Since the display 8 is located inside the cabinet 5, it is more suitable for real-time monitoring and debugging by maintenance personnel or monitoring personnel near the cabinet 5. The display screen 10 is in communication connection with the host computer two 9 and is used for displaying data outside the cabinet 5. The data also includes real-time state of the axle sensor, monitoring results, etc., but also includes some higher-level information, such as monitoring progress, error prompts or alarm information, etc. The display screen 10 is located outside the cabinet 5, making it more suitable for remote monitoring or for personnel who are not near the cabinet 5 to view the monitoring results, which increases the transparency and accessibility of the monitoring, allowing more personnel to participate in the monitoring process.

[0031] During the monitoring, the batch of CC200K wheel sensors are installed in the walk-in high-low temperature test box 4 at a certain interval distance, and high-low temperature cycle test is carried out in the test box according to the specified temperature curve. During the test, the CC200K wheel sensors are powered by the constant current power supply circuit of the aging acquisition board 1, and the wheel sensor SYS1 / SYS2 system feeds back the current signal to the aging acquisition board 1 in real time. The aging acquisition board 1 converts the current signal returned by the sensor into a voltage signal, amplifies the signal, processes and analog-to-digital converts the voltage signal, encodes the signal according to the communication protocol by the MCU, and outputs the signal through the CAN bus;

[0032] The CAN-RJ45 converter 2 establishes CAN communication with the aging acquisition board 1 through the twisted shield wire, receives the CAN bus data of the aging acquisition board 1, and transmits the data to the host computer one 7 through the switch 3 after packaging.

[0033] The host computer one 7 receives the data transmitted through the switch 3, including the CC200K wheel sensor analog signal and the wheel sensor working environment temperature signal, judges and prompts the data according to the reference value, filters out defective products, records and caches the data, and finally transmits the data to the remote server 6.

[0034] The above merely is the preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An axle counting sensor aging monitoring device, characterized by, It comprises: an aging acquisition board (1) connected with the axle sensor signal through a tail cable, and used for supplying power to the axle sensor, converting the current signal fed back by the axle sensor into a voltage signal, processing and analog-digital converting the voltage signal, and outputting through a CAN bus; a converter (2) connected with the aging acquisition board (1) through the CAN bus, receiving the CAN bus data of the aging acquisition board (1), and outputting through a network interface after packaging; a switch (3) in communication connection with the converter (2) and used for switching network data; a step-in high-low temperature test box (4) in communication connection with the switch (3) and used for providing a high-low temperature test environment for the axle sensor; and a cabinet (5) in which the aging acquisition board (1), the converter (2), and the switch (3) are respectively installed.

2. The axle counting sensor aging monitoring apparatus of claim 1, wherein, It also comprises a remote server (6) in communication connection with the switch (3).

3. The axle counting sensor aging monitoring apparatus of claim 1, wherein, It also comprises a host computer (7) in communication connection with the switch (3), and located inside the cabinet (5).

4. The axle counting sensor aging monitoring apparatus of claim 3, wherein, The host computer (7) is also in communication connection with a display (8) located inside the cabinet (5).

5. The axle counting sensor aging monitoring apparatus of claim 1, wherein, It also comprises a host computer (9) in communication connection with the switch (3), and in communication connection with a display screen (10), and located outside the cabinet (5).

6. The axle counting sensor aging monitoring apparatus of claim 2, wherein, The step-in high-low temperature test box (4) and the remote server (6) are respectively located outside the cabinet (5).

7. The axle counting sensor aging monitoring apparatus of claim 1, wherein, The converter (2) is a CAN-RJ45 converter.

8. The axle counting sensor aging monitoring apparatus of claim 1, wherein, The axle sensor is a CC200K wheel sensor.

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