Device and system for measuring opening size of vehicle speed reducer

Abstract

The utility model provides a device and a system for measuring the opening size of a vehicle speed reducer. The device for measuring the opening size of the vehicle speed reducer comprises a displacement measuring module and a data display module, the displacement measurement module comprises a displacement sensor, a data processing module and a first shell; the displacement sensor comprises a fixed ruler and a movable ruler; the movable ruler can translate along the length direction of the fixed ruler; the movable ruler and the data processing module are fixedly arranged in the first shell; the displacement measurement module further comprises a fixed probe, and a movable probe is arranged on the lower side of the first shell. And the data display module comprises a display screen connected with the data processing module. Non-contact translation of the movable ruler of the displacement sensor along the length direction of the fixed ruler occurs through translation of the movable probe relative to the fixed probe, and the non-contact translation amount is displayed as a measurement result of the opening size of the vehicle retarder, so that semi-automatic measurement and display of the measurement result are realized, the manual labor intensity of measurement can be reduced to a great extent, and the measurement efficiency is improved. And the measurement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle reducer technology, and in particular to a vehicle reducer opening size measuring device and system. Background Technology

[0002] In railway hump yards, vehicle decelerators are devices used to slow down vehicles traveling on the main rails. They consist of two braking rails located on either side of the main rails. The decelerator operates by relying on the friction between the braking rails and the sides of the vehicle's wheelsets. Therefore, the decelerator's opening size (the shortest distance between the two braking rails under braking conditions) is a key indicator affecting its braking capacity. Maintenance personnel must measure and record the decelerator's opening size periodically during routine maintenance to ensure its braking capacity meets standards and satisfies marshalling operations.

[0003] The current method for measuring the opening size of vehicle reducers involves: first, using an internal caliper to measure the reducer opening size; then, comparing the internal caliper with a steel ruler to read the measured value; finally, recording the value on a card; and finally, bringing the card back to the work area and inputting the recorded value into a spreadsheet on the office computer for statistical analysis. It is evident that the current method for measuring the opening size of vehicle reducers has the following main problems: First, the measurement and reading of the reducer opening size are easily affected by external factors and human subjectivity, making it impossible to ensure the accuracy and precision of the measurement results; second, the reducer opening size measurement process is cumbersome, requiring manual measurement followed by manual recording, resulting in low measurement efficiency; and third, the data recording method for reducer opening size measurements is primitive, failing to achieve full electronic data recording, which is detrimental to data analysis and utilization, and the full exploitation of data value. Utility Model Content

[0004] The purpose of this invention is to provide a vehicle reducer opening size measuring device and system to alleviate the above-mentioned problems existing in the existing vehicle reducer opening size measuring methods.

[0005] In a first aspect, this utility model provides a vehicle reducer opening size measuring device, which includes a displacement measuring module and a data display module connected to each other; the displacement measuring module includes a displacement sensor, a data processing module, and a first housing; the data processing module is connected to both the displacement sensor and the data display module; the displacement sensor includes a fixed ruler and a movable ruler, the fixed ruler being fixedly installed, the movable ruler being parallel to the fixed ruler and not in contact with the fixed ruler, and the movable ruler being able to translate along the length direction of the fixed ruler; both the movable ruler and the data processing module are fixedly installed inside the first housing; the displacement measuring module further includes a fixed probe, and a movable probe is provided on the lower side of the first housing, the tip of the fixed probe and the tip of the movable probe being located on the same horizontal plane and can overlap each other; the data display module includes a display screen connected to the data processing module.

[0006] As one possible implementation, a wrench is provided on the upper side of the first housing.

[0007] As one possible implementation, the displacement measurement module also includes a fixed base, on which the measuring scale is fixedly mounted.

[0008] As one possible implementation, the displacement measuring module also includes a spring, one end of which is fixedly connected to the wrench, and the other end of which is fixedly connected to the fixed base.

[0009] As one possible implementation, the ruler is connected to at least one corresponding fixing block at each end along its length direction, and each fixing block is fixedly installed on the fixing base.

[0010] As one possible implementation, the vehicle reducer opening size measuring device further includes a second housing; the mounting base is fixedly disposed within the second housing; the measuring scale, the first housing, the spring, and each of the fixing blocks are all located within the second housing; and the data display module is fixedly mounted on the second housing.

[0011] As one possible implementation, a first sliding hole is provided on the upper side of the second housing along the length direction of the fixed ruler, and the wrench passes through the first sliding hole and is slidably connected to the first sliding hole; a second sliding hole is provided on the lower side of the second housing along the length direction of the fixed ruler, and both the moving probe and the fixed probe pass through the second sliding hole and are slidably connected to the second sliding hole.

[0012] As one possible implementation, a protective cover is fixedly installed on the front side of the second housing.

[0013] As one possible implementation, the data display module further includes a power button, a zeroing button, a display setting button, a data export button, a data export interface, and a controller; the controller is connected to the power supply of the display screen, the power button, the zeroing button, the display setting button, the data export button, the data export interface, and the data display module.

[0014] Secondly, this utility model also provides a vehicle reducer opening size measurement system, which includes a background management system and the vehicle reducer opening size measurement device described in the first aspect, wherein the background management system is connected to the vehicle reducer opening size measurement device.

[0015] This utility model provides a vehicle reducer opening size measuring device and system, which can cause the displacement sensor to make a non-contact translation of the moving probe along the length direction of the fixed probe by translating the moving probe relative to the fixed probe, and display the non-contact translation amount as the vehicle reducer opening size measurement result, thereby realizing semi-automatic measurement and display of measurement results, which can greatly reduce the manual labor intensity of measurement and improve the measurement efficiency. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a vehicle reducer opening size measuring device according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of a vehicle reducer opening size measuring device according to an embodiment of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of a vehicle reducer opening size measuring device according to an embodiment of the present utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the data display module in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the moving ruler and the fixed ruler in the embodiments of this utility model;

[0022] Figure 6This is an example diagram illustrating the measurement of vehicle reducer opening size using a vehicle reducer opening size measuring device in an embodiment of this utility model.

[0023] Figure 7 This is a schematic diagram of the structure of a vehicle reducer opening size measurement system according to an embodiment of the present invention.

[0024] Icons: 10-Vehicle reducer opening size measuring device; 11-Displacement measuring module; 111-Displacement sensor; 1111-Fixed ruler; 11111-Reflective electrode; 11112-Shielding electrode; 1112-Moving ruler; 11121-Receiving electrode; 11122-Transmitting electrode; 112-Data processing module; 113-First housing; 114-Moving probe; 115-Fixed probe; 116-Wrench; 117-Fixed base; 118-Fixed block; 119-Spring; 12-Data display module; 121-Display screen; 122-Power button; 123-Zeroing button; 124-Display setting button; 125-Data export button; 126-Data export interface; 13-Second housing; 14-First sliding hole; 15-Protective cover; 21-Basic rail; 22-Brake rail; 23-Brake caliper; 30-Back-end management system. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] See Figure 1 and Figure 2 As shown, the vehicle reducer opening size measuring device may include a displacement measuring module 11 and a data display module 12 connected to each other; the displacement measuring module may include a displacement sensor 111, a data processing module 112 and a first housing 113; the data processing module 112 is connected to the displacement sensor 111 and the data display module 12 respectively.

[0027] The displacement sensor 111 can be a linear displacement sensor in the prior art, and the data processing module 112 can be a controller such as an MCU (Micro Controller Unit) in the prior art. No specific selection of linear displacement sensor and controller is limited here.

[0028] See Figure 1 and Figure 2As shown, the displacement sensor 111 can be a capacitive grating sensor. The displacement sensor 111 can include a fixed ruler 1111 and a movable ruler 1112. The fixed ruler 1111 is fixedly installed, and the movable ruler 1112 is parallel to the fixed ruler 1111 and does not contact the fixed ruler 1111. The movable ruler 1112 can be translated along the length direction of the fixed ruler 1111. Both the movable ruler 1112 and the data processing module 112 can be fixedly installed inside the first housing 113.

[0029] See Figure 1 and Figure 2 As shown, the displacement measurement module 11 may also include a fixed probe 115, and a moving probe 114 may be provided on the lower side of the first housing 113. The tips of the fixed probe 115 and the moving probe 114 are located on the same horizontal plane and can overlap each other. The data display module 12 may include a display screen 121 connected to the data processing module 112.

[0030] This utility model provides a vehicle reducer opening size measuring device, which can cause the displacement sensor to make a non-contact translation of the moving probe along the length direction of the fixed probe by translating the moving probe relative to the fixed probe, and display the non-contact translation amount as the vehicle reducer opening size measurement result, thereby realizing semi-automatic measurement and display of measurement results, which can greatly reduce the manual labor intensity of measurement and improve the measurement efficiency.

[0031] See Figures 1 to 3 As shown, a wrench may be provided on the upper side of the first housing 113 so that the measuring personnel can hold 116 to move the first housing 113, thereby causing the moving probe 114 to translate relative to the fixed probe 115 and causing the moving ruler 1112 to translate non-contactly along the length direction of the fixed ruler 1111, thereby improving the convenience of the vehicle reducer opening size measurement operation.

[0032] See Figure 1 and Figure 2 As shown, the displacement measurement module 11 may also include a mounting base 117, on which a measuring scale 1111 can be fixedly mounted. The mounting base 117 facilitates the fixing of the measuring scale 1111, thereby improving the ease of installation of the vehicle reducer opening size measuring device.

[0033] See Figure 1 and Figure 2As shown, the displacement measurement module 11 may also include a spring 119, one end of which is fixedly connected to the wrench 116, and the other end of which is fixedly connected to the fixed base 117. Since the vehicle reducer opening size measured on-site is actually the size of the vehicle reducer opening (i.e., the inner diameter), the spring 119 is designed to pull the wrench 116 back to its original position using its tension. This ensures that the tips of the fixed probe 115 and the moving probe 114 remain against the inner walls on both sides of the vehicle reducer opening during the measurement process, thereby guaranteeing the accuracy of the vehicle reducer opening size measurement results.

[0034] See Figure 2 As shown, at least one fixing block 118 can be connected to each end of the fixed ruler 1111 along its length direction, and each fixing block 118 can be fixedly installed on the fixing base 117. For example Figure 2 The fixing block 118 and the end of the measuring scale 1111 can be fixed to the designated position on the fixing base 117 by passing screws through the fixing block 118 and the end of the measuring scale 1111 in sequence. Therefore, the fixing block 118 makes it easy to fix the two ends of the measuring scale 1111 along its length direction on the fixing base 117, thereby improving the convenience of installing the vehicle reducer opening size measuring device.

[0035] See Figure 2 and Figure 3 As shown, the vehicle reducer opening size measuring device may further include a second housing 13; a mounting base 117 may be fixedly disposed within the second housing 13; a measuring scale 1111, the first housing 113, the spring 119, and each fixing block 118 may all be located within the second housing 13; and a data display module 12 may be fixedly mounted on the second housing 13. The second housing 13 protects the components located therein (such as the mounting base 117, measuring scale 1111, first housing 113, fixing blocks 118, etc.) and provides a suitable mounting position for the data display module 12.

[0036] See Figure 2 and Figure 3 As shown, a first sliding hole 14 can be formed on the upper side of the second outer casing 13 along the length direction of the fixed ruler 1111, and a wrench 116 passes through the first sliding hole 14, and the wrench 116 is slidably connected to the first sliding hole 14; a second sliding hole can be formed on the lower side of the second outer casing 13 along the length direction of the fixed ruler 1111. Figure 2 and Figure 3(Not shown in the image), both the moving probe 114 and the fixed probe 115 pass through the second sliding hole, and the moving probe 114 is slidably connected to the second sliding hole. Since the first sliding hole 14 improves the stability of the wrench 116 movement, and the second sliding hole improves the stability of the moving probe 114 relative to the fixed probe 115 during translation, the first sliding hole 14 and the second sliding hole contribute to improving the stability of the vehicle reducer opening size measurement, thereby ensuring the accuracy of the vehicle reducer opening size measurement results.

[0037] See Figure 3 As shown, a protective cover plate 15 can be fixedly installed on the front side of the second housing 13 to further protect the front side of the second housing 13.

[0038] See Figure 4 As shown, the data display module 12 may also include at least one of the following: a power button 122, a zeroing button 123, a display setting button 124, and a data export button 125, as well as a data export interface 126.

[0039] The power button 122 can be used to control the opening and closing of the data display module 12; the zeroing button 123 can be used to zero the initial value before the measurement of the vehicle reducer opening size to ensure the accuracy of the measurement results; the display setting button 124 can be used to set the unit of the vehicle reducer opening size measurement results, view the battery level of the data display module 12, and view the vehicle reducer opening size measurement records; the data export button can export the vehicle reducer opening size measurement results to the external device through the data export interface 126 after the data display module 12 is connected to the external device; the data export interface 126 can adopt a common wired interface (such as USB interface, Type-C interface, etc.) to connect to the external device so that the vehicle reducer opening size measurement results can be exported to the external device through the data export interface 126.

[0040] The data display module 12 may have a built-in controller, which can be connected to the display screen 121, each button and data export interface 126 included in the data display module 12, as well as the power supply of the data display module 12, so that the measurement personnel can trigger the control of the controller by pressing the designated button to realize the function corresponding to the designated button.

[0041] The flexibility of displaying vehicle reducer opening size measurement data can be improved by setting the button, and the flexibility of exporting vehicle reducer opening size measurement data can be improved by setting the data export interface 126, thereby helping to meet the needs of displaying and analyzing vehicle reducer opening size measurement data.

[0042] For ease of understanding, the working principle of the above-mentioned vehicle reducer opening size measuring device is described exemplarily below using a specific application example.

[0043] See Figure 1 As shown, the vehicle reducer opening size measuring device mainly consists of a displacement measuring module 11 and a data display module 12.

[0044] See Figure 1 As shown, the displacement measurement module 11 mainly consists of a displacement sensor 111, a data processing module 112, and a first housing 113. (See also...) Figure 5 As shown, the displacement sensor 111 is a capacitive grating sensor, which consists of two capacitor plates, one of which is a moving scale 1112 and the other is a fixed scale 1111; according to Figure 5 As shown in (a), a series of reflective electrodes 11111 of the same size are uniformly arranged on the fixed ruler 1111, and shielding electrodes 11112 are provided between the reflective electrodes 11111. The distance between two adjacent reflective electrodes 11111 is W. A series of transmitting electrodes 11122 of the same size are arranged on the movable ruler 1112, and receiving electrodes 11121 are also provided on the movable ruler 1112. The electrode surfaces of the movable ruler 1112 and the fixed ruler 1111 are arranged opposite each other, and the movable ruler 1112 and the fixed ruler 1111 are installed in parallel. According to Figure 5 As shown in (b), the distance between the electrode surfaces of the moving scale 1112 and the fixed scale 1111 is δ. When the relative position between the moving scale 1112 and the fixed scale 1111 changes, the capacitance value between the two capacitor plates will change, which will cause the data processing module 112 to obtain the displacement of the moving scale 1112 along the length direction of the fixed scale 1111. This displacement can be used to reflect the size of the vehicle reducer opening. Since the measurement is performed by a capacitive grating sensor, it is a non-contact method and the measurement accuracy will not decrease due to wear on the surface of the measuring components (such as the moving scale 1112, the fixed scale 1111, etc.).

[0045] See Figure 1 As shown, the displacement measurement module 11 can achieve wireless communication with the data display module 12 via integrated Bluetooth.

[0046] See Figure 2 As shown, the fixed ruler 1111 can be fixed at both ends along its length direction to the fixed base 117 by two fixing blocks 118, and the movable ruler 1112 and the data processing module 112 can be encapsulated and fixed in the first housing 113; the fixed probe 115 is fixedly disposed on the fixed base 117; the movable probe 114 is fixedly disposed on the encapsulation housing (i.e. the first housing 113) of the movable ruler 1112 and the data processing module 112, and the first housing 113 is also provided with a wrench 116.

[0047] See Figure 3As shown, the mounting base 117 can be fixedly installed inside the second housing 13, and the ruler 1111, the first housing 113, the spring 119, and each fixing block 118 are all disposed inside the second housing 13, and the data display module 12 is fixedly installed on the second housing 13.

[0048] See Figure 6 As shown, a vehicle reducer is installed on a railway. The railway includes a base rail 21 for supporting and guiding the vehicle's wheels. The vehicle reducer includes a pair of brake rails 22 and a pair of brake calipers 23. Each pair of brake rails 22 is located on both sides of a base rail 21. The base rail 21 and the brake rails 22 on both sides form a gap for the vehicle's wheels to pass through. The size of this gap can be changed by the brake calipers 23 driving the brake rails 22, thereby decelerating the vehicle moving on the railway through the contact between the brake rails 22 and the vehicle's wheels. The opening size of the vehicle reducer is the distance between the rail heads of the two brake rails 22 when the vehicle reducer is in braking condition.

[0049] See Figure 6 As shown, when using the vehicle reducer opening size measuring device 10 to measure the size of the vehicle reducer opening, the movable ruler 1112 and the movable probe 114 can be moved together by turning the wrench 116 so that the tip of the movable probe 114 overlaps with the tip of the fixed probe 115. The measurement result is then zeroed using the zeroing button 123 on the data display module 12. Afterwards, the measuring personnel hold the vehicle reducer opening size measuring device 10 horizontally and place the tip of the fixed probe 115 against the rail head of the brake rail 22 located on one side of a basic rail 21. The position of the tip of the fixed probe 115 is the starting point for measuring the size of the vehicle reducer opening. The measuring operator can then move the movable ruler 1112 and the movable probe 114 together by pulling the lever 116 until the tip of the movable probe 114 touches the rail head of the brake rail 22 located on the other side of the base rail 21. At this point, the position of the tip of the movable probe 114 is the endpoint of the measurement of the vehicle reducer opening size. The data processing module 112 measures the displacement of the movable probe 114 at this time (that is, the displacement of the movable ruler 1112 along the length direction of the fixed ruler 1111) as the measurement result of the vehicle reducer opening size and transmits the measurement result to the data display module 12 via Bluetooth. The data display module 12 then displays the measurement result on the display screen 121. In addition, the measurement result of the vehicle reducer opening size can be recorded by the data display module 12, or the measuring operator can manually record the measurement result displayed on the display screen 121.

[0050] See Figure 3As shown, screws can be used to fix the two ends of the spring 119 to the part of the wrench 116 located inside the second housing 13 and the upper right corner of the fixing seat 117, respectively. The spring 119 can pull the wrench 116 to reset. Since the size of the opening (inner diameter) is measured on site, this design can be used to use the spring 119 to pull the wrench 116 so that the needle tip of the fixed probe 115 and the needle tip of the moving probe 114 each abut against the rail head of the corresponding brake rail 22, thereby realizing the semi-automatic measurement of the opening size of the vehicle reducer. This saves the measurement personnel from manually pulling the wrench 116 to maintain the needle tip of the fixed probe 115 and the needle tip of the moving probe 114 abutting against the rail head of the corresponding brake rail 22.

[0051] In summary, this utility model, based on the actual situation of on-site maintenance of railway vehicle reducers, specifically customizes and designs the structure of a vehicle reducer opening size measuring device. It is convenient to carry and use on-site, providing a lightweight and compact device for measuring vehicle reducer opening sizes and a simple and easy-to-operate method for measuring vehicle reducer opening sizes. This facilitates the maintenance process of railway vehicle reducers and improves the efficiency of maintenance work. Measuring personnel can complete the measurement process using only a wrench, providing a novel method for measuring vehicle reducer opening sizes. Applying capacitive grating sensor measurement technology to the maintenance process of railway vehicle reducers significantly improves the accuracy of maintenance data, ensuring the effectiveness of the maintenance process and providing a basis for subsequent maintenance decisions and process optimization. The vehicle reducer opening size measuring device also supports the export of measurement data, meeting the flexible needs of relevant personnel to analyze the measurement data using external equipment.

[0052] Based on the aforementioned vehicle reducer opening size measuring device, this utility model also provides a vehicle reducer opening size measuring system, see [link to relevant documentation]. Figure 7 As shown, the vehicle reducer opening size measurement system may include a back-end management system 30 and the aforementioned vehicle reducer opening size measurement device 10, with the back-end management system 30 connected to the aforementioned vehicle reducer opening size measurement device 10. For example, the data export interface 126 can be connected to the back-end management system 30 via a data transmission line, and the measurement results of the vehicle reducer opening size can be exported to the back-end management system 30 by pressing the data export button 125, so that relevant personnel can analyze the vehicle reducer opening size measurement results on the back-end management system 30 side.

[0053] Since the above-mentioned vehicle reducer opening size measurement system includes all the technical features of the above-mentioned vehicle reducer opening size measurement device, the technical effects produced by the above-mentioned vehicle reducer opening size measurement system can be found in the description of the technical effects produced by the above-mentioned vehicle reducer opening size measurement device, and will not be repeated here.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for measuring the opening size of a vehicle reducer, characterized in that, The vehicle reducer opening size measuring device includes a displacement measuring module and a data display module connected to each other. The displacement measuring module includes a displacement sensor, a data processing module, and a first housing. The data processing module is connected to both the displacement sensor and the data display module. The displacement sensor includes a fixed ruler and a movable ruler. The fixed ruler is fixedly installed, and the movable ruler is parallel to the fixed ruler and does not contact it. The movable ruler can be translated along the length direction of the fixed ruler. Both the movable ruler and the data processing module are fixedly installed inside the first housing. The displacement measuring module also includes a fixed probe. A movable probe is provided on the lower side of the first housing. The tips of the fixed probe and the movable probe are located on the same horizontal plane and can overlap each other. The data display module includes a display screen connected to the data processing module. A wrench is provided on the upper side of the first housing; the displacement measuring module also includes a fixed base, and the fixed ruler is fixedly installed on the fixed base; the displacement measuring module also includes a spring, one end of the spring is fixedly connected to the wrench, and the other end of the spring is fixedly connected to the fixed base; the tip of the fixed probe is used to press against one side of the inner wall of the vehicle reducer opening, and the tip of the moving probe is used to press against the other side of the inner wall of the vehicle reducer opening.

2. The vehicle reducer opening size measuring device according to claim 1, characterized in that, The measuring rod is connected to at least one fixing block at each end along its length, and each fixing block is fixedly installed on the fixing base.

3. The vehicle reducer opening size measuring device according to claim 2, characterized in that, The vehicle reducer opening size measuring device also includes a second housing; the fixing base is fixedly disposed inside the second housing; the measuring scale, the first housing, the spring, and each of the fixing blocks are all located inside the second housing; the data display module is fixedly mounted on the second housing.

4. The vehicle reducer opening size measuring device according to claim 3, characterized in that, The second outer casing has a first sliding hole on its upper side along the length of the fixed ruler, through which the wrench passes and is slidably connected; the second outer casing has a second sliding hole on its lower side along the length of the fixed ruler, through which both the moving probe and the fixed probe pass and are slidably connected.

5. The vehicle reducer opening size measuring device according to claim 4, characterized in that, A protective cover is fixedly installed on the front side of the second outer casing.

6. The vehicle reducer opening size measuring device according to any one of claims 1-5, characterized in that, The data display module further includes a power button, a zeroing button, a display setting button, a data export button, a data export interface, and a controller; the controller is connected to the power supply of the display screen, the power button, the zeroing button, the display setting button, the data export button, the data export interface, and the data display module.

7. A system for measuring the opening size of a vehicle reducer, characterized in that, The vehicle reducer opening size measurement system includes a background management system and a vehicle reducer opening size measurement device as described in any one of claims 1-6, wherein the background management system is connected to the vehicle reducer opening size measurement device.

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