Integrated calibration device for locomotive protection and separation system
By using an integrated calibration device for the locomotive protection and isolation system, and by simulating the carriage and wheels with a mobile trolley, the problem of reduced system stability was solved, and the calibration and adjustment of radar and wheel sensors were realized, thereby improving the system's reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国铁路南宁局集团有限公司
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-21
AI Technical Summary
After prolonged operation, the fully automatic locomotive protection and isolation system experiences reduced operational stability, frequent equipment failures, and disruptions to production operations.
Design an integrated calibration device for a locomotive protection and isolation system, including a mobile trolley equipped with a reflector and sensors to simulate the carriage and wheels, and to calibrate radar and wheel sensors by moving it on the track.
By adjusting and updating aging components using a calibration device, system reliability is improved, ensuring the accuracy of radar sensors and the sensitivity of wheel sensors, and maintaining system stability.
Smart Images

Figure CN224152643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of locomotive protection and isolation technology, specifically to an integrated calibration device for a locomotive protection and isolation system. Background Technology
[0002] The fully automatic locomotive protection and isolation system integrates signal interlocking technology, axle counting technology, radar detection technology, and safety redundancy technology. It is an unattended, fully automatic locomotive protection and isolation device. For example, the invention patent disclosed in authorization announcement number CN110562298B discloses a fully automatic locomotive protection and isolation system, including a wheel detection device that uses paired active magnetic steel sensors to determine the axle's direction of travel and accurately record the number of axles in the protected area. Millimeter-wave radar is also designed as redundant auxiliary equipment, evenly distributed within the protected area. After prolonged operation, the system's operational stability has decreased, and the number and frequency of equipment failures have gradually increased, affecting normal production operations. Utility Model Content
[0003] The purpose of this invention is to provide an integrated calibration device for a locomotive protective isolation system, for calibrating and checking the wheel detection device and millimeter-wave radar in the locomotive protective isolation system.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] The integrated calibration device for the locomotive protection and isolation system includes a mobile trolley, which is equipped with a reflector to simulate a locomotive carriage and a sensor to simulate locomotive wheels. The mobile trolley moves along a track during use.
[0006] Furthermore, the mobile trolley includes a frame with two rollers spaced apart at the front and rear, which roll on the track.
[0007] Furthermore, the roller is made of a non-metallic material.
[0008] Furthermore, the roller has an annular groove for engaging with the track.
[0009] Furthermore, the vehicle frame is provided with a support rod, and the upper part of the support rod is provided with the reflector plate.
[0010] Furthermore, the support rod includes a support sleeve and a rod body. The support sleeve is connected to the vehicle frame, the lower end of the rod body is inserted into the support sleeve, and the reflector is fixed to the upper end of the rod body.
[0011] Furthermore, the frame is also equipped with a push rod, which is inclined.
[0012] Furthermore, the frame is provided with a sleeve, and the lower end of the push rod is inserted into the sleeve and fastened with bolts.
[0013] Furthermore, the sensing element includes a sensing block with a rounded bottom and the upper part of the sensing block is fixed to the frame of the mobile trolley via a connecting plate.
[0014] The beneficial effects of this utility model are:
[0015] In use, the operator holds the upper end of a push rod to move a trolley along the rails. A reflector moving with the trolley simulates the reflection of radar sensor signals from a vehicle carriage, thus calibrating the radar sensors in the locomotive protective isolation system. Similarly, a sensor moving with the trolley simulates the wheels triggering wheel sensors on the railside, calibrating the wheel sensors (magnets) in the locomotive protective isolation system. This integrated calibration device can calibrate a locomotive protective isolation system after a period of use, adjusting components that can be adjusted and replacing those that cannot be adjusted, such as those whose performance is substandard due to aging, thereby ensuring system reliability. This integrated calibration device can also be used during the initial installation of the locomotive protective isolation system, allowing adjustment of parameters such as the installation spacing, height, or angle of the radar sensors based on the test results. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the integrated calibration device for locomotive protection and isolation system of this utility model applied on the track;
[0017] Figure 2 This is a perspective view of the integrated calibration device for the locomotive protection and isolation system of this utility model;
[0018] Figure 3 This is a partial structural diagram of the integrated calibration device for the locomotive protection and isolation system of this utility model.
[0019] 1. Track; 2. Moving trolley; 21. Frame; 22. Roller; 3. Reflector; 41. Support sleeve; 42. Rod; 43. First bolt; 44. Second bolt; 5. Sensor; 51. Sensor block; 52. Connecting plate; 53. Third bolt; 61. Sleeve; 62. Push rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art are within the protection scope of the present utility model.
[0021] Embodiments of this utility model:
[0022] like Figures 1-3 As shown, the integrated calibration device for the locomotive protection and isolation system includes a mobile trolley 2. The mobile trolley 2 is equipped with a reflector 3 to simulate a locomotive carriage and sensors 5 to simulate locomotive wheels. During use, the mobile trolley 2 moves along track 1 to simulate locomotive movement. The radar sensor to be calibrated is mounted on the outside of track 1 via a corresponding bracket. The radar sensor can transmit signals onto the reflector 3, which then reflects the signals, thus calibrating the accuracy and reliability of the radar sensor.
[0023] The mobile trolley 2 includes a frame 21, on which two rollers 22 are spaced apart. The rollers 22 are unpowered and can roll on the track 1. The frame 21 is a frame structure made of rectangular tubes welded together. The rollers 22 have annular grooves for engaging with the track 1, ensuring stability during trolley movement.
[0024] Roller 22 is made of a non-metallic material, such as existing nylon material, and is insulated from the rail to prevent it from affecting the calibration process.
[0025] A support rod is provided on the frame 21, and the reflector plate 3 is provided on the upper part of the support rod. The support rod includes a support sleeve 41 and a rod body 42. The support sleeve 41 is connected to the frame 21 by a first bolt 43. The main body of the support sleeve 41 is a rectangular tube with a closed bottom. The rod body 42 is a rectangular tube, and its lower end is inserted into the support sleeve 41, which supports the rod body 42. A second bolt 44 passes through the support sleeve 41, and the rod body 42 is connected to the support sleeve 41 by the second bolt 44 to ensure the stability of the rod body 42 during use; when not in use, the rod body 42 can be disassembled for easy storage.
[0026] The reflector 3 is a circular plate fixed to the upper end of the rod 42. The reflector 3 is made of steel plate to better simulate the reflective surface of a real vehicle's cabin.
[0027] The sensing element 5 includes a sensing block 51, rather than being designed as a single circular wheel, to reduce weight and facilitate manufacturing. In other embodiments, the sensing element 5 can also be made into a circular wheel to simulate a locomotive wheel. The bottom of the sensing block 51 is an arc surface, simulating the circular outline of a real wheel, and is sensed by an active magnetic sensor arranged on one side of the rail, thereby allowing for the calibration of the active magnetic sensor. The sensing element 5 is made of steel and must be magnetically conductive.
[0028] The upper part of the sensing block 51 is fixed to the frame 21 of the mobile trolley 2 via the connecting plate 52. The upper part of the connecting plate 52 is fixed to the frame 21 via the third bolt 53.
[0029] The frame 21 is also equipped with a push rod 62, which is inclined. The frame 21 has a sleeve 61, and the lower end of the push rod 62 is inserted into the sleeve 61 and secured with a fourth bolt. The sleeve 61 has a through hole, and the push rod 62 has a corresponding through hole for the fourth bolt to pass through. In use, the operator can use the push rod 62 to push the trolley 2 along the rails; when not in use, the push rod 62 can be pulled out of the sleeve 61 for easy storage.
Claims
1. An integrated calibration device for a locomotive protection and isolation system, characterized in that: It includes a mobile trolley, which is equipped with a reflector to simulate a locomotive carriage and sensors to simulate locomotive wheels. The mobile trolley moves along a track during use.
2. The locomotive guard separation system integrated calibration device of claim 1, wherein: The mobile trolley includes a frame with two rollers spaced apart at the front and rear, which roll on the track.
3. The locomotive guard separation system integrated calibration device of claim 2, wherein: The rollers are made of non-metallic materials.
4. The locomotive guard separation system integrated calibration device of claim 2, wherein: The roller has an annular groove for engaging with the track.
5. The locomotive guard separation system integrated calibration device of claim 2, wherein: The frame is equipped with a support rod, and the upper part of the support rod is equipped with the reflector plate.
6. The locomotive guard separation system integrated calibration device of claim 5, wherein: The support rod includes a support sleeve and a rod body. The support sleeve is connected to the vehicle frame, the lower end of the rod body is inserted into the support sleeve, and the reflector is fixed to the upper end of the rod body.
7. The locomotive guard separation system integrated calibration device of claim 2, wherein: The frame is also equipped with a push rod, which is tilted.
8. The locomotive guard separation system integrated calibration device of claim 7, wherein: The frame is equipped with a sleeve, and the lower end of the push rod is inserted into the sleeve and fastened with bolts.
9. The locomotive protective partition system integrated calibration device of claim 1, wherein: The sensing element includes a sensing block with a rounded bottom and the upper part of the sensing block is fixed to the frame of the mobile trolley via a connecting plate.
Citation Information
Patent Citations
Fully automatic locomotive protection isolation system
CN110562298B