Train brake pad detection system
By designing multiple sets of supplementary lighting and data acquisition devices in the train brake pad detection system, the problem of light obstruction during train model changes was solved, enabling accurate acquisition of brake pad height and thickness information and improving detection accuracy.
Patent Information
- Application Number
- CN202423120243.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In the prior art, the supplementary lighting layout applicable to one vehicle model is easily blocked when changing vehicle models, which cannot provide sufficient light to the brake pads, resulting in the inability to clearly capture the edges of the brake pads and affecting the accuracy of image processing.
Design a train brake pad detection system, including multiple sets of supplementary lighting lamps and a data acquisition device. The supplementary lighting lamps are alternately set with the rails, and each set of supplementary lighting lamps provides light to a brake pad in a one-to-one correspondence. The data acquisition device is located on one side of the supplementary lighting lamp set and is used to collect information on the height and thickness of the brake pad.
By providing stable and sufficient light to each gate plate through the supplementary lighting unit, the acquisition device can accurately capture the height and thickness information of the gate plate, solving the problem of clear imaging caused by insufficient light and improving the accuracy of detection.
Smart Images
Figure CN223807820U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to train brake pad detection technical field, and particularly relates to a train brake pad detection system. BACKGROUND
[0002] In the modern high-speed railway system, the safe operation of the motor vehicle is crucial. To ensure that the motor vehicle can brake in time and effectively during high-speed driving, the detection and maintenance of the brake pad are particularly important. As an important part of the motor vehicle braking system, the wear state of the brake pad directly affects the braking performance and driving safety.
[0003] However, due to the various types, positions of the motor vehicle brake disc and the distribution of the brake pad, the light supplementing lamp layout suitable for one vehicle model is difficult to adapt to all vehicle models. When the vehicle model is changed, the light supplementing lamp layout originally suitable for one vehicle model may be blocked due to the structural difference of the new vehicle model, so that the light supplementing lamp cannot provide sufficient light for the brake pad, and the clear brake pad edge cannot be captured, which not only reduces the accuracy of image processing, but also affects the judgment of the subsequent brake pad wear state. SUMMARY
[0004] The utility model provides a train brake pad detection system for solving the technical problem that the light supplementing lamp layout suitable for one vehicle model is easy to be blocked when the vehicle model is changed, and the clear brake pad edge cannot be captured.
[0005] The utility model discloses a train brake pad detection system, the train brake pad is along the axle distribution of train and is used for the brake of train, and a train brake pad detection system includes light supplementing lamp group and acquisition device, wherein light supplementing lamp group is equipped with multiple groups, and multiple light supplementing lamp groups are alternately arranged along the light supplementing lamp group of the first direction with two steel rails for train running, and each light supplementing lamp group includes at least one light supplementing lamp along the first direction extension distribution, and the light supplementing lamp corresponds to the brake pad and provides light to the brake pad, and the first direction is perpendicular to the extension direction of the steel rail, and the acquisition device is located on one side of the light supplementing lamp group and is used for collecting the height and thickness information of the train brake pad.
[0006] Optionally, the train has a wheel corresponding to the steel rail, and the outer side and the inner side of the wheel are respectively provided with a first brake pad and a second brake pad; the light supplementing lamp group includes a first light supplementing lamp and a second light supplementing lamp, the first light supplementing lamp is used for providing light to the first brake pad, and the second light supplementing lamp is used for providing light to the second brake pad; the acquisition device includes a first camera and a second camera, the first camera is installed on one side of the first light supplementing lamp to collect the information of the first brake pad, and the second camera is installed on one side of the second light supplementing lamp to collect the information of the second brake pad.
[0007] Optionally, a brake disc is further arranged between the two wheels, and third and fourth brake pads are arranged on two sides of the brake disc; the light supplement lamp set further comprises third and fourth light supplement lamps arranged along the first direction, the third light supplement lamp being configured to provide light for the third brake pad, and the fourth light supplement lamp being configured to provide light for the fourth brake pad; the acquisition device further comprises a third camera and a fourth camera, the third camera being arranged between the third and fourth brake pads to acquire height and thickness information of the third brake pad, and the fourth camera being arranged on a side of the fourth brake pad away from the third brake pad to acquire height and thickness information of the fourth brake pad.
[0008] Optionally, the number of brake discs is two, and the third and fourth brake pads are arranged on two sides of each of the two brake discs.
[0009] Optionally, the train has the wheels corresponding to the rails one by one, and three brake discs are arranged between two wheels, and fifth, sixth and seventh brake pads are arranged on two sides of the three brake discs along the first direction.
[0010] The light supplement lamp set comprises fifth, sixth and seventh light supplement lamps arranged along the first direction, the fifth, sixth and seventh light supplement lamps being configured to provide light for the fifth, sixth and seventh brake pads respectively, and the number of the fifth, sixth and seventh light supplement lamps is two.
[0011] The acquisition device comprises a fifth camera, two sixth cameras and a seventh camera, the fifth camera being arranged between the two fifth light supplement lamps to acquire height and thickness information of the fifth brake pad, the two sixth cameras being configured to acquire height and thickness information of the two sixth brake pads respectively, and the seventh camera being arranged between the two seventh light supplement lamps to acquire height and thickness information of the seventh brake pad.
[0012] Optionally, the first, second, third, fourth, fifth, sixth and seventh brake pads are arranged at least in two along the extension direction of the rail, and are arranged at the front end and the rear end of the wheel or the brake wheel respectively, and the acquisition device acquires height and thickness information of each brake pad.
[0013] Optionally, a first trigger unit is further arranged on one side of the rail, the wheel triggers the first trigger unit, and the acquisition device acquires information of the brake pad at the front end of the wheel or the brake wheel.
[0014] Optionally, the system further comprises a second triggering unit, which is installed on one side of the steel rail and triggered by the wheel, and the acquisition device acquires the information of the brake pad behind the wheel or the braking wheel.
[0015] Optionally, the height of the acquisition device from the surface of the steel rail is d1, the distance between the brake pad and the center of the wheel is d2, and the radius of the wheel is R, and the height of the brake pad is h = d1 + R - d2.
[0016] Optionally, the system further comprises a rechecking ruler, which comprises a ruler body and a sliding part, one end of the ruler body is a first abutting part, the sliding part is slidingly installed on the ruler body, the sliding part has a second abutting part, and the first abutting part and the second abutting part abut on opposite sides of the brake pad respectively to measure the thickness of the brake pad.
[0017] Compared with the prior art, the train brake pad detection system has the following beneficial effects:
[0018] The train brake pad detection system provided by the utility model comprises a light supplement lamp set and an acquisition device, a plurality of light supplement lamp sets are arranged, the light supplement lamp sets along a first direction are alternately arranged with two steel rails for train running, each light supplement lamp set comprises at least one light supplement lamp extending along the first direction, the light supplement lamp provides light to the brake pad one by one, and the first direction is perpendicular to the extension direction of the steel rail; and the acquisition device is located on one side of the light supplement lamp set and is used for acquiring the height and thickness information of the train brake pad.
[0019] Through the above structure, when the train brake pad detection system detects the train brake pad, the train moves along the steel rail, the light supplement lamp is turned on and provides light to the corresponding train brake pad when the train passes above the light supplement lamp set and the acquisition device, and the acquisition device acquires the height and thickness information of the brake pad. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0021] Figure 1 It is a structure schematic view of the train brake pad detection system provided by the utility model;
[0022] Figure 2Is another layout of the brake shoe in the train brake shoe detection system provided by the utility model;
[0023] Figure 3 Is still another layout of the brake shoe in the train brake shoe detection system provided by the utility model;
[0024] Figure 4 Is still another layout of the brake shoe in the train brake shoe detection system provided by the utility model;
[0025] Figures 5-6 Is the layout diagram of the first trigger unit and the second trigger unit in the utility model embodiment;
[0026] Figure 7 Is the installation structure schematic view of the brake shoe in the utility model embodiment;
[0027] Figures 8-10 Is the structure schematic view of the rechecking ruler in the utility model embodiment.
[0028] In the drawing,
[0029] 11-first light supplement lamp group;12-second light supplement lamp group;121-second light supplement lamp;122-third light supplement lamp;123-fourth light supplement lamp;124-third light supplement lamp group;125-fifth light supplement lamp;126-sixth light supplement lamp;127-seventh light supplement lamp;
[0030] 2-acquisition device;21-first camera;22-second camera;23-third camera;24-fourth camera;25-fifth camera, 26-sixth camera;27-seventh camera;
[0031] 3-brake shoe;31-first brake shoe;32-second brake shoe;33-third brake shoe;34-fourth brake shoe;35-fifth brake shoe;36-sixth brake shoe;37-seventh brake shoe;
[0032] 41-steel rail;42-axle;43-wheel;
[0033] 51-first trigger unit;52-second trigger unit;
[0034] 6-rechecking ruler;61-ruler body;611-first abutting portion;62-sliding portion;621-second abutting portion. Specific implementation
[0035] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0036] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0037] In the description of the present application, it needs to be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0038] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.
[0039] The utility model provides a train brake pad detection system, solve present applicable to a car type's light filling lamp layout easy to be blocked when changing car type, cannot shoot clear brake pad edge technical problem. This kind of train brake pad detection system includes light filling lamp group and acquisition device, wherein:
[0040] As Figures 1-4As shown, the light supplement lamp is provided with multiple groups, the train brake piece 3 is distributed along the axle 42 of the train, the train brake piece 3 is used for train braking, the multiple groups of light supplement lamps are distributed along the first direction, the light supplement lamp groups are alternately arranged with the two steel rails 41 for train running, the light supplement lamp group at least includes at least one light supplement lamp distributed along the first direction, that is, each brake piece 3 has one or more light supplement lamps specially providing light for it, so that not only the uniformity of light coverage is improved, but also the brake piece 3 can be clearly illuminated at any angle, and the first direction is perpendicular to the extension direction of the steel rail 41.
[0041] As shown in the figure, Figures 1-4 The collection device 2 is installed on one side of the light supplement lamp group, so as to collect the height and thickness information of the train brake piece 3, so as to facilitate the maintenance of the train brake piece 3 according to the collected height and thickness information of the train brake piece 3, and since the light supplement lamp group provides stable and sufficient light, the collection device 2 can accurately capture the height and thickness information of the brake piece 3.
[0042] Through the above structure, the train brake piece 3 detection system provided by the utility model can provide light for each train brake piece 3 through the light supplement lamp when detecting the train brake piece 3, so as to reduce the problem that the train brake piece 3 cannot be clearly photographed due to insufficient light caused by shielding.
[0043] An optional embodiment of the embodiment is as follows: as shown in the figure, Figure 1 The train has a wheel 43 corresponding to the steel rail 41, and the outer side and the inner side of the wheel 43 are respectively provided with a first brake piece 31 and a second brake piece 32; the light supplement lamp group includes a first light supplement lamp group 11 and a second light supplement lamp group 12, the first light supplement lamp group 11 is located on the outer side of the steel rail 41, and the second light supplement lamp group 12 is located between the two steel rails 41; the first light supplement lamp group 11 at least includes one first light supplement lamp, the second light supplement lamp group 12 at least includes one second light supplement lamp 121, the first light supplement lamp is used for providing light to the first brake piece 31, and the second light supplement lamp 121 is used for providing light to the second brake piece 32; the collection device 2 includes a first camera 21 and a second camera 22, the first camera 21 is installed on one side of the first light supplement lamp to collect the information of the first brake piece 31, and the second camera 22 is installed on one side of the second light supplement lamp 121 to collect the information of the second brake piece 32.
[0044] An optional embodiment of the embodiment is as follows: as shown in the figure, Figure 2As shown, two brake discs are arranged between the two wheels 43, and the two brake discs are respectively provided with third brake pads 33 and fourth brake pads 34; the second light supplement lamp set 12 further comprises third light supplement lamps 122 and fourth light supplement lamps 123 which are arranged at intervals along the first direction, the third light supplement lamps 122 are used to provide light for the third brake pads 33, and the fourth light supplement lamps 123 are used to provide light for the fourth brake pads 34; the acquisition device 2 further comprises a third camera 23 and a fourth camera 24, the third camera 23 is installed between the third brake pads 33 and the fourth brake pads 34 to acquire the height and thickness information of the third brake pads 33, and the fourth camera 24 is installed on the side of the fourth brake pads 34 away from the third brake pads 33 to acquire the height and thickness information of the fourth brake pads 34.
[0045] An optional implementation of the embodiment is as follows: as shown in Figure 3 The number of brake discs is two, and the two brake discs are respectively provided with third brake pads 33 and fourth brake pads 34, and correspondingly, each third brake pad 33 or fourth brake pad 34 is provided with a third light supplement lamp 122 or fourth light supplement lamp 123 to provide light, and a third camera 23 or fourth camera 24 to acquire the height and thickness information.
[0046] An optional implementation of the embodiment is as follows: as shown in Figure 4 The train has wheels 43 corresponding to the rails 41, and three brake discs are arranged between the two wheels 43, and the two sides of the three brake discs are respectively provided with fifth brake pads 35, sixth brake pads 36 and seventh brake pads 37 along the first direction.
[0047] The light supplement lamp set comprises a third light supplement lamp set 122, and the third light supplement lamp set 122 comprises fifth light supplement lamps 125, sixth light supplement lamps 126 and seventh light supplement lamps 127 arranged along the first direction, the fifth light supplement lamps 125, the sixth light supplement lamps 126 and the seventh light supplement lamps 127 provide light for the fifth brake pads 35, the sixth brake pads 36 and the seventh brake pads 37 respectively, and the number of the fifth light supplement lamps 125, the sixth light supplement lamps 126 and the seventh light supplement lamps 127 is two, that is, the fifth light supplement lamps 125, the sixth light supplement lamps 126 and the seventh light supplement lamps 127 correspond to the fifth brake pads 35, the sixth brake pads 36 and the seventh brake pads 37 respectively.
[0048] The acquisition device 2 comprises a fifth camera 25, a sixth camera 26 and a seventh camera 27, the fifth camera 25 is installed between the two fifth light supplement lamps 125 to acquire the height and thickness information of the fifth brake pads 35, the number of the sixth camera 26 is two, and the two sixth cameras 26 acquire the height and thickness information of the two sixth brake pads 36 respectively, and the seventh camera 27 is installed between the two seventh light supplement lamps 127 to acquire the height and thickness information of the seventh brake pads 37.
[0049] More preferably, the first light supplement lamp, the second light supplement lamp 121, the third light supplement lamp 122, the fourth light supplement lamp 123, the fifth light supplement lamp 125, the sixth light supplement lamp 126, the seventh light supplement lamp 127, the first camera 21, the second camera 22, the third camera 23, the fourth camera 24, the fifth camera 25, the sixth camera 26 and the seventh camera 27 are simultaneously installed below a track, thereby increasing the acquisition device 2 to increase the acquisition area of the train height information and the thickness information. When the train passes, the light supplement lamp group can turn on the corresponding light supplement lamp according to the different brake shoe 3 position of the train, and the acquisition device 2 can turn on the corresponding camera according to the different brake shoe 3 position of the train. When the train passes, the light supplement lamp group can also be turned on to supplement the light of the brake shoe 3 of the train. The light supplement lamp near the brake shoe 3 corresponding light supplement lamp can also be supplemented, thereby improving the light supplement effect. All cameras of the acquisition device 2 can acquire the height and thickness information of the brake shoe 3 of the train. The camera near the brake shoe 3 corresponding camera can also acquire the height and thickness information of the brake shoe 3. Specifically, the second light supplement lamp 121 can also supplement the light of the fifth brake shoe 35, and the second camera 22 can also acquire the information of the fifth brake shoe 35. The fifth light supplement lamp 125 and the third light supplement lamp 122 can respectively supplement the light of the third brake shoe 33 and the fifth brake shoe 35. The fifth camera 25 can also acquire the height and thickness information of the third brake shoe 33, and the third camera 23 can also acquire the height and thickness information of the fifth brake shoe 35, thereby assisting in judging the height and thickness of the brake shoe 3, and further improving the accuracy of the height information and the thickness information of the brake shoe 3.
[0050] An optional embodiment of the present embodiment is as follows: as shown in Figures 1-4 The first brake shoe 31, the second brake shoe 32, the third brake shoe 33, the fourth brake shoe 34, the fifth brake shoe 35, the sixth brake shoe 36 and the seventh brake shoe 37 are arranged at least two along the extension direction of the steel rail 41, and are arranged at the front end and the rear end of the wheel 43 or the brake wheel, that is, at least four brake shoes 3 are arranged on each wheel 43 or brake wheel for braking the train. A plurality of brake shoes 3 work simultaneously to better brake the train. The acquisition device 2 acquires the height and thickness information of each brake shoe 3, thereby ensuring that each brake shoe 3 can be in a normal working state.
[0051] An optional embodiment of the present embodiment is as follows: as shown in Figure 5 The first trigger unit 51 is installed on one side of the steel rail 41. The wheel 43 triggers the first trigger unit 51, and the acquisition device 2 acquires the information of the brake shoe 3 at the front end of the wheel 43 or the brake wheel.
[0052] An optional embodiment of the present embodiment is as follows: the second trigger unit 52 is installed on one side of the steel rail 41, as shown in Figure 6As shown, the wheel 43 triggers the second trigger unit 52, and the acquisition device 2 acquires information of the wheel 43 or the brake shoe 3 at the rear end of the wheel.
[0053] An optional embodiment of the embodiment is as follows: as shown in the figure, Figure 7 As shown, the height of the acquisition device 2 from the surface of the steel rail 41 is d1, the distance from the brake shoe 3 to the center of the wheel 43 is d2, the radius of the wheel 43 is R, and the height h of the brake shoe 3 is d1+R-d2.
[0054] An optional embodiment of the embodiment is as follows: in order to facilitate the re-inspection of the thickness information of the brake shoe 3 of the train, as shown in the figure, Figures 8-10 As shown, the re-inspection ruler provided by the embodiment includes a ruler body 61 and a sliding part 62, one end of the ruler body 61 is a first abutting part 611, the sliding part 62 is slidingly installed on the ruler body 61, the sliding part 62 has a second abutting part 621, the first abutting part 611 and the second abutting part 621 abut on opposite sides of the brake shoe 3 respectively, so as to measure the thickness of the brake shoe 3, one side of the first abutting part 611 away from the second abutting part 621 and one side of the second abutting part 621 away from the first abutting part 611 have first abutting surfaces, and the opposite sides of the first abutting part 611 and the second abutting part 621 have second abutting surfaces, the thickness of the brake shoe 3 can be measured by abutting the two first abutting surfaces or the two second abutting surfaces on the corresponding positions of the brake shoe 3.
[0055] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range recorded in the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. A train shoe detection system, the train shoes being distributed along axles of a train and used for braking of the train, characterized in that, The application relates to a train height and thickness information acquisition device. The train has wheels corresponding to the rails, and the outer side and the inner side of the wheels are respectively provided with first brake shoes and second brake shoes. The light supplementing lamp group comprises a first light supplementing lamp group and a second light supplementing lamp group, the first light supplementing lamp group is located on the outer side of the rail, the second light supplementing lamp group is located between the two rails, the first light supplementing lamp group comprises at least one first light supplementing lamp, the second light supplementing lamp group comprises at least one second light supplementing lamp, the first light supplementing lamp is used for providing light for the first brake shoe, and the second light supplementing lamp is used for providing light for the second brake shoe.
2. The train brake pad detection system of claim 1, wherein, The acquisition device comprises a first camera and a second camera, the first camera is installed on one side of the first light supplementing lamp to acquire information of the first brake shoe, and the second camera is installed on one side of the second light supplementing lamp to acquire information of the second brake shoe. The two wheels are further provided with brake discs, and the two sides of the brake discs are respectively provided with third brake shoes and fourth brake shoes. The second light supplementing lamp group further comprises third light supplementing lamps and fourth light supplementing lamps which are arranged at intervals along the first direction, the third light supplementing lamps are used for providing light for the third brake shoes, and the fourth light supplementing lamps are used for providing light for the fourth brake shoes.
3. The train brake pad detection system of claim 2, wherein, The acquisition device further comprises a third camera and a fourth camera, the third camera is installed between the third brake shoes and the fourth brake shoes to acquire height and thickness information of the third brake shoes, and the fourth camera is installed on one side of the fourth brake shoe away from the third brake shoe to acquire height and thickness information of the fourth brake shoe. The number of the brake discs is two, and the two sides of the two brake discs are respectively provided with the third brake shoes and the fourth brake shoes. The train has the wheels corresponding to the rails, and three brake discs are arranged between the two wheels, and the two sides of the three brake discs are respectively provided with fifth brake shoes, sixth brake shoes and seventh brake shoes along the first direction.
4. The train brake pad detection system of claim 3, wherein, The light supplementing lamp group comprises a third light supplementing lamp group, the third light supplementing lamp group comprises fifth light supplementing lamps, sixth light supplementing lamps and seventh light supplementing lamps which are arranged along the first direction, the fifth light supplementing lamps, the sixth light supplementing lamps and the seventh light supplementing lamps provide light for the fifth brake shoes, the sixth brake shoes and the seventh brake shoes respectively, and the number of the fifth light supplementing lamps, the sixth light supplementing lamps and the seventh light supplementing lamps is two.
5. The train brake pad detection system of claim 4, wherein, The collecting device comprises a fifth camera, a sixth camera and a seventh camera, the fifth camera is installed between two fifth light supplement lamps to collect height and thickness information of the fifth brake pad, the sixth camera is two in number to collect height and thickness information of two sixth brake pads respectively, and the seventh camera is installed between two seventh light supplement lamps to collect height and thickness information of the seventh brake pad.
6. The train brake pad detection system of claim 5, wherein, The first brake pad, the second brake pad, the third brake pad, the fourth brake pad, the fifth brake pad, the sixth brake pad and the seventh brake pad are at least two in number along the extension direction of the steel rail and are located at the front end and the rear end of the wheel or the brake wheel respectively, and the collecting device collects height and thickness information of each brake pad.
7. The train brake pad detection system of claim 3, wherein, Further comprising: A first trigger unit is installed on one side of the steel rail, the wheel triggers the first trigger unit, and the collecting device collects information of the brake pad at the front end of the wheel or the brake wheel.
8. The train brake pad detection system of claim 3, wherein, Further comprising: A second trigger unit is installed on one side of the steel rail, the wheel triggers the second trigger unit, and the collecting device collects information of the brake pad at the rear end of the wheel or the brake wheel.
9. The train brake shoe detection system of claim 2, wherein, The height of the collecting device from the surface of the steel rail is d1, the distance from the brake pad to the center of the wheel is d2, the radius of the wheel is R, and the height of the brake pad is h=d1+R-d2.
10. The train brake pad detection system of claim 1, wherein, Further comprising: A rechecking ruler comprises a ruler body and a sliding part, one end of the ruler body is a first abutting part, the sliding part is slidingly installed on the ruler body, the sliding part has a second abutting part, and the first abutting part and the second abutting part abut on opposite sides of the brake pad respectively to measure the thickness of the brake pad.