Motor train unit wheel set tread detection system and device

Abstract

The utility model relates to a motor train unit wheel set tread detection system and device, the motor train unit wheel set tread detection system comprises a control module, a train receiving device, a speed measuring device, a positioning device and an acquisition device, the output end of the train receiving device and the output end of the speed measuring device are electrically connected with the control module; the output end of the control module is electrically connected with the positioning device and the acquisition device, the output end of the positioning device is electrically connected with the acquisition device, and the output end of the acquisition device is further electrically connected with the data processing module; by arranging the speed measuring device, the shooting interval of the cameras can be controlled according to the speed of the train, the number of the cameras can be reduced, the tread detection equipment is relatively simple, each camera only needs to shoot one picture for one wheel, all the shot tread images are few, the shooting position is fixed, and the detection accuracy is improved. Therefore, when the complete image of the whole wheel circumference tread is synthesized, the processing mode is relatively simple.

Description

Technical Field

[0001] This application relates to the technical field of EMU wheel set detection, and more specifically, to an EMU wheel tread detection system and device. Background Art

[0002] Currently, EMU wheel tread detection equipment is added at the side of the track when the EMU enters and exits the depot. Images of the tread are collected by the equipment, and the tread images are stitched through an image recognition algorithm. For treads with peeling or gouging, an automatic alarm is given to remind of tread maintenance. This is crucial for the driving safety of EMUs.

[0003] In the prior art, the wheel tread acquisition equipment usually consists of multiple high-speed cameras. During the running of the EMU, images of different positions on the wheel circumference are taken, and then multiple images are stitched to obtain an image of the entire wheel circumference. However, different trains have different speeds when passing by. To ensure that all positions on the entire wheel circumference are captured, usually multiple cameras are required, and the shooting frequency of the cameras is increased to ensure that no position on the wheel circumference is missed during shooting. This method of tread image acquisition not only makes the entire equipment complex by setting multiple cameras, but also makes the processed tread images more complex to synthesize a complete wheel circumference tread image.

[0004] Therefore, it is necessary for the inventor to design a new EMU wheel tread detection system and device to overcome the above problems. Summary of the Invention

[0005] The main purpose of this application is to provide an EMU wheel tread detection system and device to solve the problems in the related art that the tread detection equipment is complex and the processing method for synthesizing the wheel circumference tread image is complex.

[0006] To achieve the above purpose, in a first aspect, this application provides an EMU wheel tread detection system, including a control module, a train arrival device, a speed measurement device, a positioning device, and a collection device. The output ends of the train arrival device and the speed measurement device are electrically connected to the control module. The output end of the control module is electrically connected to the positioning device and the collection device. The output end of the positioning device is electrically connected to the collection device. The output end of the collection device is also electrically connected to a data processing module.

[0007] Preferably, the control module is a control industrial computer.

[0008] Preferably, the speed measurement device is a speed measurement radar.

[0009] Preferably, the train arrival device is a train arrival wheel sensor.

[0010] Preferably, the positioning device is a positioning wheel sensor.

[0011] Preferably, the acquisition device includes a tread two-dimensional map acquisition device, a car number module, and an acquisition industrial computer. The positioning device is electrically connected to the tread two-dimensional map acquisition device and the car number module, and the output end of the control module is electrically connected to the acquisition industrial computer.

[0012] On the other hand, the present application also provides a detection device for the wheel tread of a multiple unit train, including a detection system for the wheel tread of a multiple unit train as described above.

[0013] Preferably, it further includes two parallel tracks. The train receiving device is fixedly arranged at one end of one of the tracks that first contacts the train. The tread two-dimensional map acquisition device is symmetrically and fixedly arranged on both sides of the other ends of the two tracks. The car number module is fixedly arranged on one side of one of the tracks. The positioning device is fixedly arranged on one of the tracks and is located between the symmetrically arranged tread two-dimensional map acquisition devices.

[0014] Preferably, the tread two-dimensional map acquisition device includes three groups of shooting modules. Each group of shooting modules includes two tread cameras, and the two tread cameras are symmetrically arranged on both sides of the two tracks.

[0015] Preferably, the car number module includes a car number supplementary light and a car number camera. The car number supplementary light and the car number camera are fixedly arranged on one side of the track through a mounting rod. The speed measurement radar is fixedly arranged on the mounting rod, and the mounting rod is located between the train receiving device and the tread two-dimensional map acquisition device.

[0016] The detection system for the wheel tread of a multiple unit train provided by the present utility model, compared with the prior art, has the following beneficial effects:

[0017] By setting a speed measurement device to measure the speed of the train, the shooting interval of the camera can be controlled according to the speed of the train, thereby reducing the number of cameras. As a result, the tread detection equipment is relatively simple. At the same time, each camera only needs to take one picture, so the number of tread images taken by all cameras is also small, and the shooting positions are relatively fixed, making the processing method for synthesizing the complete image of the entire wheel circumference tread relatively simple. Description of the Drawings

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objectives, and advantages of the present application more obvious. The schematic embodiments and descriptions of the drawings of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0019] Figure 1It is the system structure diagram of the present utility model;

[0020] Figure 2 It is the top view of the device structure of the present utility model;

[0021] Figure 3 It is the front view of the device structure of the present utility model;

[0022] Figure 4 It is the structure diagram at the installation rod of the present utility model.

[0023] Wherein: 1. Rail; 2. Train-receiving magnetic steel; 3. Positioning magnetic steel; 4. Tread camera; 5. Car number supplementary light; 6. Car number camera; 7. Installation rod; 8. Speed measurement radar. Specific implementation manner

[0024] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0025] It should be noted that the terms "first", "second", etc. in the specification of this application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0026] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0027] Moreover, in addition to being used to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0028] In addition, the meaning of the term "plurality" shall be two or more.

[0029] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in combination with the embodiments.

[0030] As Figures 1 to 4 shown, a detection system for the tread surface of the wheelset of a multiple unit train includes a control module, a train receiving device, a speed measuring device, a positioning device, and a collecting device. The output ends of the train receiving device and the speed measuring device are electrically connected to the control module. The output end of the control module is electrically connected to the positioning device and the collecting device. The output end of the positioning device is electrically connected to the collecting device. The output end of the collecting device is also electrically connected to the data processing module. During operation, the train receiving device is used to detect the arrival of the train. After the train arrives, the train arrival information is transmitted to the control module. The control module controls the collecting device to enter the detection state. As the train continues to move forward, the speed measuring device measures the speed of the train and transmits it to the control module. The control module controls the time interval for the collecting device to take pictures of the train wheels. When the positioning device senses the train wheels, the collecting device starts to work, takes pictures of the circumferential tread surface of the wheels, and uploads the collected tread surface images to the data processing module for processing. In this embodiment, since a speed measuring device is provided to measure the speed of the train, the shooting interval of the camera can be controlled according to the speed of the train, thereby reducing the number of cameras, making the tread surface detection equipment relatively simple. At the same time, each camera only needs to take one picture, so the number of tread surface images taken by all the tread surface cameras 4 is also small, and the shooting positions are relatively fixed, making the processing method relatively simple when synthesizing the complete image of the entire circumferential tread surface.

[0031] The control module is a control industrial computer. During operation, the control industrial computer can use an intelligent chip, and control software is installed in the intelligent chip for control.

[0032] The speed measuring device is a speed measuring radar 8; the train receiving device is a train receiving wheel sensor; the positioning device is a positioning wheel sensor. During actual use, the train receiving wheel sensor can use a train receiving magnetic steel 2, and the positioning wheel sensor can use a positioning magnetic steel 3. Both the train receiving magnetic steel 2 and the positioning magnetic steel 3 are fixedly installed on the track 1.

[0033] The acquisition device includes a tread two-dimensional map acquisition device, a car number module, and an acquisition industrial control computer. The positioning device is electrically connected to the tread two-dimensional map acquisition device and the car number module, and the output end of the control module is electrically connected to the acquisition industrial control computer. During operation, the tread two-dimensional map acquisition device is used to acquire the circumferential tread images of the train, the car number module is used to acquire the car number information of the train, and the acquisition industrial control computer is used to transmit the circumferential tread images and the car number information to the data processing module. Here, the data processing module may include a data recognition and storage server, a general database containing an image database and a model database, and a data terminal platform. The data recognition and storage server transmits the tread image data and the car number data to the general database. After comparing the data in the image database and the model database through the image recognition software, the recognition result is obtained, and the recognition result and the tread picture information are transmitted to the data terminal platform for display or storage to complete the entire data processing task.

[0034] A wheel set tread detection device for a multiple unit train includes a wheel set tread detection system as described above. It also includes two parallel tracks 1. The train receiving device is fixedly arranged at one end of one of the tracks 1 that first contacts the train. The tread two-dimensional map acquisition devices are symmetrically and fixedly arranged on both sides of the other ends of the two tracks 1. The car number module is fixedly arranged on one side of one of the tracks 1. The positioning device is fixedly arranged on one of the tracks 1 and is located between the symmetrically arranged tread two-dimensional map acquisition devices. During operation, the train receiving device first senses the oncoming train, and then the positioning device senses the oncoming train. Then, the tread two-dimensional map acquisition devices on both sides capture the tread images of the wheels on both sides of the train.

[0035] The tread two-dimensional map acquisition device includes three groups of shooting modules. Each group of shooting modules includes two tread cameras 4, and the two tread cameras 4 are symmetrically arranged on both sides of the two tracks 1. During operation, theoretically, considering that the shooting angle of the camera usually does not exceed 180°, and there are parts where the wheel contacts the track 1, the minimum number of tread cameras 4 on one side is three. Moreover, the shooting range angles of the three tread cameras 4 should be greater than the 120° central angle range on the wheel circumference so that all positions on the wheel circumference can be captured. The control module controls the time interval for the three tread cameras 4 on one side to shoot, which should be the time required for the wheel to roll through 120° at this vehicle speed. The positions where the three tread cameras 4 are installed should enable the entire circumferential tread of the wheel to be captured.

[0036] The car number module includes a car number fill light 5 and a car number camera 6. The car number fill light 5 and the car number camera 6 are fixedly arranged on one side of the track 1 through a mounting rod 7. The speed measurement radar 8 is fixedly arranged on the mounting rod 7. The mounting rod 7 is located between the train receiving device and the tread two-dimensional map acquisition device. During operation, the car number camera 6 is used to photograph the car number of the train, the car number fill light 5 is used for fill light when photographing the car number, and the speed measurement radar 8 located between the train receiving device and the tread two-dimensional map acquisition device can transmit the vehicle speed information of the train to the control module before the camera photographs the wheel tread circumference.

[0037] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A wheel set tread detection system for an EMU, characterized in that: It includes a control module, a vehicle receiving device, a speed measuring device, a positioning device and a collection device. The output ends of the vehicle receiving device and the speed measuring device are electrically connected to the control module, the output end of the control module is electrically connected to the positioning device and the collection device, the output end of the positioning device is electrically connected to the collection device, and the output end of the collection device is also electrically connected to the data processing module.

2. The EMU wheelset tread detection system according to claim 1, characterized in that: The control module is a control industrial computer.

3. The EMU wheelset tread detection system according to claim 1, characterized in that: The vehicle receiving device is a vehicle receiving wheel sensor.

4. The EMU wheelset tread detection system according to claim 1, characterized in that: The positioning device is a positioning wheel sensor.

5. The EMU wheelset tread detection system according to claim 1, characterized in that: The acquisition device includes a tread two-dimensional image acquisition device, a vehicle number module and an acquisition industrial computer. The positioning device is electrically connected to the tread two-dimensional image acquisition device and the vehicle number module. The output end of the control module is electrically connected to the acquisition industrial computer.

6. A wheel set tread detection device for an EMU, characterized in that: It includes a EMU wheelset tread detection system as described in claim 5.

7. The EMU wheel set tread detection device according to claim 6, characterized in that: It also comprises two rails (1) arranged in parallel, the vehicle receiving device being fixedly arranged on one end of one of the rails (1) that first contacts the train, the tread two-dimensional image acquisition device being symmetrically fixedly arranged on both sides of the other end of the two rails (1), the vehicle number module being fixedly arranged on one side of one of the rails (1), and the positioning device being fixedly arranged on one of the rails (1) and being located between the symmetrically arranged tread two-dimensional image acquisition devices.

8. The EMU wheel set tread detection device according to claim 7, characterized in that: The tread two-dimensional image acquisition device comprises three groups of shooting modules, each group of the shooting modules comprises two tread cameras (4), and the two tread cameras (4) are symmetrically arranged on both sides of the two tracks (1).

9. The EMU wheel set tread detection device according to claim 7, characterized in that: The vehicle number module comprises a vehicle number fill light (5) and a vehicle number camera (6), the vehicle number fill light (5) and the vehicle number camera (6) are fixedly arranged on one side of the track (1) via a mounting rod (7), the speed measuring device is a speed measuring radar (8), the speed measuring radar (8) is fixedly arranged on the mounting rod (7), and the mounting rod (7) is located between the vehicle receiving device and the tread two-dimensional image acquisition device.

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