Track detection vehicle body acceleration data transmission device

Abstract

The utility model discloses a track detection vehicle body acceleration data transmission device which comprises a shell, an accelerometer signal acquisition module, a mileage signal acquisition module, a pulse signal acquisition module, a signal uploading module, a voltage conversion module and a display screen, and the accelerometer signal acquisition module is externally connected with an accelerometer; the pulse signal acquisition module is used for receiving a pulse signal output by the wiring terminal; the voltage conversion module is used for converting the pulse signal into a low-voltage signal; the accelerometer signal acquisition module is used for acquiring an acceleration signal of an accelerometer when the low-voltage signal has a voltage value; the mileage signal acquisition module is used for acquiring a mileage signal issued by the space synchronization unit when the low-voltage signal has a voltage value; the display screen is used for displaying the collected acceleration signal and mileage signal in real time; and the signal uploading module is used for sending the signal to an upper computer system.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation infrastructure detection, in particular to a track detection vehicle body acceleration data transmission device. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the invention recited in the claims. No admission is made that the description herein is prior art by virtue of its inclusion in this section.

[0003] Dynamic monitoring of railway infrastructure is a crucial tool for guiding track maintenance and ensuring railway operational safety. Accelerometers are crucial for monitoring track and vehicle performance, helping to early detect potential issues such as track defects or vehicle failures, optimizing railway system operations, improving train ride comfort, enhancing the passenger experience, and reducing accident risks. As inspection speeds increase, the requirements for measurement accuracy and data consistency in track inspection acceleration acquisition systems, as dynamic response devices to track geometry deviations, continue to rise. Currently, accuracy control of acceleration systems remains at the sensor level, with accelerometers periodically calibrated using sinusoidal signals based on laboratory vibration standards. This severely impacts the efficiency of track inspection acceleration systems, which operate alongside inspection vehicles on-track for extended periods. Furthermore, sensor calibration results using conventional sinusoidal signals fail to truly reflect the overall system's measurement capabilities in complex vehicle operating environments. Acceleration transmission is a crucial component in the quantitative assessment of acceleration systems. Improving the accuracy and precision of acceleration transmission will significantly enhance the accuracy and accuracy of these assessments. Utility Model Content

[0004] The present invention provides a track inspection vehicle acceleration data transmission device that can transmit vehicle acceleration data during track inspection with high accuracy and precision, thereby facilitating quantitative assessment of track inspection acceleration and assisting in improving the accuracy of overrun level assessment in the track inspection system. The device comprises:

[0005] A housing, an accelerometer signal acquisition module, a mileage signal acquisition module, a pulse signal acquisition module, a signal uploading module and a voltage conversion module placed in the housing, and a display screen provided on the surface of the housing, wherein:

[0006] The accelerometer signal acquisition module is externally connected to the accelerometer, the mileage signal acquisition module is externally connected to the space synchronization unit of the track inspection system, the pulse signal acquisition module is externally connected to the wiring terminals of the track inspection system, and the signal transmission module is connected to the host computer system;

[0007] A pulse signal acquisition module is used to receive the pulse signal output by the terminal block;

[0008] The voltage conversion module is used to convert the pulse signal into a low voltage signal;

[0009] The accelerometer signal acquisition module is used to collect the acceleration signal of the accelerometer when the low voltage signal has a voltage value;

[0010] The mileage signal acquisition module is used to collect the mileage signal sent by the space synchronization unit when the low-voltage signal has a voltage value;

[0011] The display screen is used to display the collected acceleration signal and mileage signal in real time;

[0012] The signal transmission module is used to send acceleration signals and mileage signals to the host computer system.

[0013] In an embodiment of the present invention, a pulse signal is collected through a pulse signal acquisition module of a connection terminal of an external track inspection system, and the pulse signal is converted into a voltage signal. The voltage signal can calibrate the acceleration signal and the mileage signal, thereby transmitting the vehicle acceleration data in track inspection with high accuracy and precision, so as to help quantify the track inspection acceleration and assist in improving the accuracy of the track inspection system's over-limit level judgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1 This is an external schematic diagram of a track detection vehicle body acceleration data transmission device in an embodiment of the present utility model;

[0016] Figure 2 This is an internal schematic diagram of the track detection vehicle acceleration data transmission device in an embodiment of the present utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiment of the present invention more clear, the embodiment of the present invention is further described in detail with reference to the accompanying drawings. Here, the exemplary embodiment of the present invention and its description are used to explain the present invention, but are not intended to limit the present invention.

[0018] The present invention provides a track detection vehicle acceleration data transmission device, such as Figure 1 The figure shows the external schematic diagram of the track detection vehicle acceleration data transmission device in the embodiment of the present utility model. Figure 2 This is a schematic diagram of the internal structure of the track detection vehicle body acceleration data transmission device in an embodiment of the present invention. The track detection vehicle body acceleration data transmission device includes:

[0019] The housing includes an accelerometer signal acquisition module, a mileage signal acquisition module, a pulse signal acquisition module, a signal uploading module, and a voltage conversion module 8, and a display screen 1 on the surface of the housing.

[0020] The accelerometer signal acquisition module is externally connected to the accelerometer, the mileage signal acquisition module is externally connected to the space synchronization unit of the track inspection system, the pulse signal acquisition module is externally connected to the wiring terminals of the track inspection system, and the signal transmission module is connected to the host computer system;

[0021] A pulse signal acquisition module is used to receive the pulse signal output by the terminal block;

[0022] The voltage conversion module 8 is used to convert the pulse signal into a low voltage signal;

[0023] The accelerometer signal acquisition module is used to collect the acceleration signal of the accelerometer when the low voltage signal has a voltage value;

[0024] The mileage signal acquisition module is used to collect the mileage signal sent by the space synchronization unit when the low-voltage signal has a voltage value;

[0025] The display screen 1 is used to display the collected acceleration signal and mileage signal in real time;

[0026] The signal transmission module is used to send acceleration signals and mileage signals to the host computer system.

[0027] Among them, there is no voltage value when the pulse signal is at a low level, and there is a voltage value when the pulse signal is at a high level.

[0028] In one embodiment, the accelerometer signal acquisition module is connected to an external accelerometer via the accelerometer signal interface 3, the mileage signal acquisition module is connected to a spatial synchronization unit of a track inspection system via the mileage signal interface 4, the pulse signal acquisition module is connected to a connection terminal of the track inspection system via the pulse signal interface 5, and the signal transmission module is connected to a host computer system via a host computer interface 6;

[0029] In one embodiment, the accelerometer signal interface 3 , the mileage signal interface 4 , the pulse signal interface 5 and the host computer interface 6 are provided on the surface of the housing.

[0030] In one embodiment, it further includes a collection switch 2 provided on the surface of the housing for controlling the accelerometer signal collection module, the mileage signal collection module, and the pulse signal collection module to start or stop collection.

[0031] In one embodiment, the pulse signal is a TTL signal with voltage jumps.

[0032] During specific implementation, the voltage jump TTL signal may be +5V.

[0033] In one embodiment, the device further comprises a power supply module 9 for providing a power supply voltage.

[0034] In one embodiment, the power module 9 is used to:

[0035] The preset voltage is converted into the power supply voltage required by the accelerometer signal acquisition module, the mileage signal acquisition module, the pulse signal acquisition module, the signal uploading module and the display screen 1 respectively.

[0036] For example, the preset voltage of the power module 9 is 16V DC, the power voltage required by the accelerometer signal acquisition module is 12V DC, and the voltage shown on the display screen 1 is 15V DC.

[0037] In one embodiment, the device further comprises a power interface 7 provided on the surface of the housing;

[0038] The power module 9 is connected to an external power source via the power interface 7 .

[0039] In one embodiment, the housing is fixed by bolts; the accelerometer signal acquisition module, the mileage signal acquisition module, the pulse signal acquisition module, the signal uploading module, the voltage conversion module 8 and the power supply module 9 are fixed by bolts.

[0040] During specific implementation, the display screen 1 on the front side (first side) is fixed by glue, and the accelerometer signal interface, mileage signal interface, pulse signal interface, host computer interface, and power supply interface can be located on the same side (second side). Of course, they can also be located on different sides. The acquisition switch 2 can be located on the second side or the third side.

[0041] In one embodiment, the display screen 1, the accelerometer signal interface 3, the mileage signal interface 4, and the voltage conversion module 8 are respectively connected to the signal uploading module via signal lines;

[0042] The pulse signal interface 5 is connected to the voltage conversion module 8 via a signal line;

[0043] The signal sending module and the display screen 1 are connected to the power module via a power cable;

[0044] The power line and signal line are fixed in the groove of the connecting rod by cable ties.

[0045] The following is an application example of a track detection vehicle body acceleration data transmission device.

[0046] Step 1: Before use, connect the accelerometer signal, mileage signal, and pulse signal to the corresponding accelerometer signal acquisition module, mileage signal acquisition module, and pulse signal acquisition module respectively;

[0047] Step 2: Power on the track detection vehicle acceleration data transmission device and check whether the display screen lights up;

[0048] Step 3: After the vehicle starts running, click the acquisition switch to check whether the acceleration signal waveform on the display screen is beating normally;

[0049] Step 4. After the acquisition is completed, click the acquisition switch to stop the acquisition, and connect the device to the host computer system through the network cable so that the host computer system can obtain the acceleration signal, mileage signal and voltage signal.

[0050] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A track detection vehicle body acceleration data transmission device, characterized in that: include: A housing, an accelerometer signal acquisition module, a mileage signal acquisition module, a pulse signal acquisition module, a signal uploading module and a voltage conversion module (8) placed in the housing, and a display screen (1) arranged on the surface of the housing, wherein: The accelerometer signal acquisition module is externally connected to the accelerometer, the mileage signal acquisition module is externally connected to the space synchronization unit of the track inspection system, the pulse signal acquisition module is externally connected to the wiring terminals of the track inspection system, and the signal transmission module is connected to the host computer system; A pulse signal acquisition module is used to receive the pulse signal output by the terminal block; The voltage conversion module (8) is used to convert the pulse signal into a low voltage signal; The accelerometer signal acquisition module is used to collect the acceleration signal of the accelerometer when the low voltage signal has a voltage value; The mileage signal acquisition module is used to collect the mileage signal sent by the space synchronization unit when the low-voltage signal has a voltage value; The display screen (1) is used to display the collected acceleration signal and mileage signal in real time; The signal transmission module is used to send acceleration signals and mileage signals to the host computer system.

2. The device according to claim 1, wherein The accelerometer signal acquisition module is connected to the accelerometer via the accelerometer signal interface (3), the mileage signal acquisition module is connected to the space synchronization unit of the track inspection system via the mileage signal interface (4), the pulse signal acquisition module is connected to the connection terminal of the track inspection system via the pulse signal interface (5), and the signal uploading module is connected to the host computer system via the host computer interface (6).

3. The device according to claim 2, wherein The accelerometer signal interface (3), the mileage signal interface (4), the pulse signal interface (5) and the host computer interface (6) are arranged on the surface of the housing.

4. The device according to claim 1, wherein It also includes a collection switch (2) arranged on the surface of the shell, which is used to control the accelerometer signal collection module, the mileage signal collection module, and the pulse signal collection module to start or stop collection work.

5. The device according to claim 1, wherein The pulse signal is a TTL signal with voltage jump.

6. The device according to claim 1, wherein It also includes a power supply module (9) for providing power supply voltage.

7. The device according to claim 6, characterized in that The power module (9) is used to: The preset voltage is converted into the power supply voltage required by the accelerometer signal acquisition module, the mileage signal acquisition module, the pulse signal acquisition module, the signal uploading module and the display screen (1).

8. The device according to claim 7, wherein It also includes a power interface (7) provided on the surface of the housing; The power module (9) is connected to an external power source via a power interface (7).

9. The device according to claim 1, wherein The housing is fixed by bolts; the accelerometer signal acquisition module, the mileage signal acquisition module, the pulse signal acquisition module, the signal uploading module, the voltage conversion module (8) and the power supply module (9) are fixed by bolts.

10. The device according to claim 1, wherein The display screen (1), the accelerometer signal interface (3), the mileage signal interface (4), and the voltage conversion module (8) are respectively connected to the signal uploading module via signal lines; The pulse signal interface (5) is connected to the voltage conversion module (8) via a signal line; The signal uploading module and the display screen (1) are connected to the power module via a power line; The power line and signal line are fixed in the groove of the connecting rod by cable ties.

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