Wind testing system and wind testing equipment

Abstract

The utility model relates to a wind test system and a wind test device, the wind test system comprises a carrier, an image identification module and a communication module, the image identification module and the communication module are accommodated on the carrier, the image identification module is in wireless connection with an inlet wire of the communication module, and the image identification module comprises a laser radar and a 3D camera; the laser radar is used for collecting distance data between the wind testing device and a train key position, the 3D camera is used for collecting contour data of the train key position, and the communication module is used for receiving data of the image recognition module. According to the utility model, the key structure on the train can be accurately acquired and judged through the thunder-vision integrated image identification module, so that the real-time position of the wind testing equipment is determined, an accurate parking point is calculated, then the wind testing equipment is accurately guided to park at a target position through a control system of the wind testing equipment, and the positioning accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the field of rail transit testing technology, specifically to a test ventilation system and test ventilation equipment. Background Technology

[0002] With the development of railway transportation, the requirements for the length, weight, and load capacity of traction trains are constantly increasing, and train speeds are also continuously rising. Braking safety is the prerequisite and foundation for safe train operation, and the train inspection brake air test is directly related to train operation safety. The main purpose of conducting an automatic brake test on a train is to inspect the entire braking system. Before a train departs, or when a train stops at an intermediate station for more than twenty minutes, a train air test is required to confirm that the entire air duct is unobstructed and the braking system is functioning properly.

[0003] Air testing is a crucial operation, involving checking the air pressure in the vehicle's braking system to ensure its proper functioning. Each car is equipped with a complete braking system. Compressed air generated by the locomotive's air compressor is stored in the main air reservoir. When the driver operates the brake valve to inflate the main brake pipes of each car, the compressed air is sent to the auxiliary air reservoirs in each car. When the driver brakes, the compressed air in the reservoirs is expelled, converting air pressure into mechanical force, thus braking the high-speed wheels.

[0004] The purpose of air testing is to ensure the safe operation of trains. Because trains have large load capacities and high speeds, their ability to stop or slow down promptly upon arrival at a station or in emergency situations is crucial. Therefore, air testing must be conducted before departure. Since freight car braking systems rely on air pressure, each car has an air pump. Air testing involves demonstrating the entire braking and release process. Because the air ducts are connected across all cars, the braking performance of the entire train can be assessed by observing the air test results of the last car. This is done by checking whether the piston of the air pump in the last car extends and retracts.

[0005] When the test air equipment is running along the track, it is difficult to determine the real-time position of the test air equipment, make it difficult to calculate the accurate stopping point, and make it difficult to accurately identify the position of the brake cylinder. This results in a large error between the actual stopping position of the test air equipment on the track and the key position that the train needs to be tested, which affects the test results. Utility Model Content

[0006] The first aspect of this utility model aims to solve the problem of inaccurate positioning of air testing equipment in identifying key braking positions, and provides an air testing system that can accurately collect and judge key structures on the train through an image recognition module, enabling the air testing equipment to perform positioning and imaging judgment at the target location. The main concept is as follows:

[0007] A test system includes a vehicle and an image recognition module and a communication module housed on the vehicle. The image recognition module and the communication module are wirelessly connected. The image recognition module includes a lidar and a 3D camera.

[0008] LiDAR is used to collect distance data between the air testing equipment and key locations on the train;

[0009] 3D cameras are used to collect the outline data of key locations on the train;

[0010] The communication module is used to receive data from the image recognition module.

[0011] This solution improves the efficiency and reliability of identification by rationally allocating and coordinating the use of sensors such as LiDAR and 3D cameras and the information they collect, and by employing fusion recognition technology. The integrated LiDAR and 3D camera image recognition module can accurately collect and judge the key structures on the train, thereby determining the real-time position of the air test equipment and calculating the accurate stopping point. Then, the control system of the air test equipment accurately guides the air test equipment to stop at the target position. The position error can be controlled to less than one centimeter, which can fully guarantee the accuracy of positioning.

[0012] Preferably, the lidar includes a transmitter, a receiver, and an information processing component. The transmitter is used to emit pulsed laser light towards the target, the receiver is used to receive the reflected pulsed laser light, and the information processing component is used to obtain a precise contour.

[0013] The second aspect of this invention aims to confirm whether the detection is applied to the position of the air cylinder strut in the last carriage. Furthermore, the laser radar is electrically connected to the vehicle number recognition module. The vehicle number recognition module receives the signal from the laser radar reaching the rear of the train and is used to read the vehicle number of the last carriage. Currently, most locomotives and rolling stock in my country are equipped with vehicle number tags, which store the vehicle number or locomotive train number information printed on the carriage.

[0014] The third aspect of this invention aims to solve the technical problem of slow transmission of detection results. Furthermore, the communication module employs 5G communication and wirelessly connects to the 3D camera. The communication module receives data captured by the 3D camera and uploads it to the station server. This solution uses high-speed 5G wireless transmission to upload video, images, and other data collected by the robot in real time, effectively avoiding waiting time.

[0015] Preferably, the 3D camera is mounted at an angle on the vehicle, with its shooting direction tilted upwards. By tilting the 3D camera, distance information of the shooting space can be detected, and the upward shooting direction allows for the simultaneous detection of the positional relationship between the bottom of the train and the external environment, thus reconstructing the real scene.

[0016] Preferably, a test air device includes a light rail for mounting a vehicle, the vehicle moving along the light rail, the light rail being located on the inner side of a railway.

[0017] Preferably, a wireless charging transmitter is installed on the lightweight track. The wireless charging transmitter wirelessly connects to the wireless receiver of the power module, and the wireless charging transmitter is connected to an external power source via a wire. With the wireless charging transmitter arranged within the lightweight track and the wireless receiver installed on the air testing equipment, the wireless receiver can supply power to its power module. When the air testing equipment is not in operation, it moves to the charging location and remains in standby mode. At this time, the control system will automatically perform wireless charging based on the robot's battery level.

[0018] Preferably, the lightweight track has an I-beam structure, comprising an upper leg, a lower leg, and a waist section. The upper and lower legs are connected by the vertically arranged waist section. The lightweight track engages with the inner side of the railway through the lower leg, and with the vehicle through the upper leg. Choosing an I-beam structure for the lightweight track is advantageous because it offers high strength and rigidity, reduces material usage, and provides strong resistance to bending and torsion, making it less prone to deformation. This improves the load-bearing capacity of the lightweight track and enhances the stability of train operation.

[0019] Preferably, the lightweight rail is installed on the inner side of the railway via a rail mounting structure. The rail mounting structure includes a fastening mechanism and a positioning mechanism. Two positioning mechanisms are symmetrically arranged above the fastening mechanism. The fastening mechanism is connected to a sleeper in the middle of the railway. The positioning mechanisms are used to position and install the lower legs of the lightweight rail. Placing the structure for installing the lightweight rail on a sleeper in the middle of the railway provides better stability and support strength compared to placing it on the ballast bed in the middle of the railway, resulting in a better installation effect for the lightweight rail.

[0020] The fourth aspect of this utility model aims to solve the technical problem of derailment caused by vibration or collision when a vehicle is working on a light rail. Further, the vehicle includes rollers and auxiliary wheels. The vehicle abuts against the upper leg of the light rail via the rollers, and the auxiliary wheel is set at the waist of the light rail via a bending member. By adding an auxiliary wheel at the waist of the light rail at the mating position of the vehicle and the light rail via the bending member, and by constraining the vertical upward movement direction of the auxiliary wheel by the upper leg, the vehicle runs on the light rail via the rollers. When the vehicle tends to deviate upward due to vibration or other reasons, the action of the auxiliary wheel and the waist of the light rail can prevent the vehicle from derailing. Furthermore, the auxiliary wheel is connected to the bending member via a pivot, allowing the auxiliary wheel to roll against the bottom end of the upper leg, preventing jamming during auxiliary wheel positioning and improving the stability of the vehicle's operation.

[0021] The beneficial effects of this utility model are as follows:

[0022] The integrated image recognition module can accurately collect and judge the key structures on the train, thereby determining the real-time position of the air test equipment and calculating the accurate stopping point. Then, the control system of the air test equipment can accurately guide the air test equipment to stop at the target position. The position error can be controlled to less than one centimeter, which can fully guarantee the accuracy of positioning. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the air test system of this utility model.

[0024] Figure 2 This is a schematic diagram of the structure of the air test equipment of this utility model.

[0025] Figure 3 This is a cross-sectional view of the air test equipment of this utility model.

[0026] The attached diagram includes the following reference numerals: 1. LiDAR; 2. 3D camera; 3. Vehicle number recognition module; 4. Light rail; 5. Vehicle; 6. Wireless charging transmitter; 7. External power supply. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0028] It should be noted that all actions involving the acquisition of signals, information, or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where the application is located, and with the authorization granted by the owner of the relevant device.

[0029] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" are defined based on the contours of the corresponding components. Terms such as "first" and "second" used in this disclosure are for distinguishing one element from another and do not imply sequence or importance.

[0030] Example 1:

[0031] like Figure 1As shown, the wind test system provided in this embodiment includes a carrier 5 and an image recognition module and a communication module housed on the carrier 5. The image recognition module and the communication module are wirelessly connected. The image recognition module includes a lidar 1 and a 3D camera 2.

[0032] LiDAR 1 is used to collect distance data between the air testing equipment and key locations on the train;

[0033] 3D camera 2 is used to collect the outline data of key locations on the train;

[0034] The communication module is used to receive data from the image recognition module.

[0035] This embodiment improves the efficiency and reliability of recognition by rationally allocating and coordinating the use of sensors such as LiDAR 1 and 3D camera 2 and the information they collect, and by employing fusion recognition technology. The integrated LiDAR and 3D camera image recognition module can accurately collect and judge the key structures on the train, thereby determining the real-time position of the air test equipment and calculating the accurate stopping point. Then, the control system of the air test equipment accurately guides the air test equipment to stop at the target position. The position error can be controlled to less than one centimeter, which can fully guarantee the accuracy of positioning.

[0036] The lidar 1 includes a transmitter, a receiver, and an information processing component. The transmitter is used to emit pulsed laser light towards the target, the receiver is used to receive the reflected pulsed laser light, and the information processing component is used to obtain a precise contour.

[0037] Key components of a train include couplers, air cylinders, and air ducts.

[0038] Example 2:

[0039] In this embodiment, the vehicle number recognition module 3 is electrically connected to the lidar 1. The vehicle number recognition module 3 receives the signal from the lidar 1 when it reaches the rear of the train, and is used to read the vehicle number of the last car. Currently, most locomotives and rolling stock in my country are equipped with vehicle number tags, which store the vehicle number or locomotive train number information printed on the carriages.

[0040] The communication module utilizes 5G communication and wirelessly connects to 3D camera 2. The communication module receives data captured by 3D camera 2 and uploads it to the station server. This solution uses high-speed 5G wireless transmission to upload video, images, and other data collected by the robot in real time, effectively avoiding waiting time.

[0041] 3D camera 2 is mounted at an angle on vehicle 5, with its shooting direction tilted upwards. By tilting 3D camera 2, distance information of the shooting space can be detected. The upward shooting direction also allows for the simultaneous detection of the positional relationship between the bottom of the train and the external environment, thus reconstructing the realistic scene.

[0042] Example 3:

[0043] like Figure 2 As shown, this embodiment provides a test air device, including a light rail 4, which is used to assemble a carrier 5. The carrier 5 moves along the light rail 4, and the light rail 4 is located on the inner side of the railway.

[0044] Setting the light rail 4 inside the railway allows the vehicles running on the light rail 4 to be located at the bottom of the train, enabling the image recognition module and communication module that perform detection during vehicle 5 operation to collect and detect data directly at the bottom of the train, making it more flexible.

[0045] The vehicle 5 is equipped with a power motor that enables the vehicle 5 to move automatically on the light track 4.

[0046] A wireless charging transmitter 6 is installed on the lightweight track 4. The wireless charging transmitter 6 wirelessly connects to the wireless receiver of the power module. The wireless charging transmitter 6 is connected to an external power supply 7 via a wire.

[0047] In this embodiment, a wireless charging transmitter 6 is arranged inside the lightweight track 4, and a wireless receiver is set on the air test equipment. The wireless receiver can supply power to its power module. When the air test equipment is not in working state, it will move to the charging location and maintain standby state. At this time, the control system will automatically perform wireless charging according to the amount of battery power of the robot.

[0048] Example 4:

[0049] like Figure 3 As shown, the lightweight track 4 in this embodiment has an I-beam structure. The lightweight track 4 includes an upper leg 41, a lower leg 42, and a waist section 43. The upper leg 41 and lower leg 42 are connected by the vertically arranged waist section 43. The lightweight track 4 engages with the inner side of the railway through the lower leg 42, and engages with the carrier 5 through the upper leg 41. Choosing an I-beam structure for the lightweight track 4 is advantageous because the I-beam shape offers high strength and rigidity, reduces material usage, and provides strong resistance to bending and torsion, making it less prone to deformation. This improves the load-bearing capacity of the lightweight track and increases the stability of train operation.

[0050] The light rail 4 is installed on the inner side of the railway via a rail mounting structure 6. The rail mounting structure 6 includes a fastening mechanism 61 and a positioning mechanism 62. Two positioning mechanisms 62 are symmetrically arranged above the fastening mechanism 61. The fastening mechanism 61 is connected to a sleeper in the middle of the railway. The positioning mechanisms 62 are used to position and install the lower legs 42 of the light rail 4. Placing the structure for installing the light rail 4 on a sleeper in the middle of the railway provides better stability and support strength compared to placing it on the ballast bed in the middle of the railway, resulting in a better installation effect for the light rail 4.

[0051] The vehicle 5 also includes rollers 51 and auxiliary wheels 52. The vehicle 5 abuts against the upper leg 41 of the light rail 4 via rollers 51, and the auxiliary wheel 52 is set at the waist 43 of the light rail 4 via a bending member 53. By adding the auxiliary wheel 52 to the waist position 43 of the light rail 4 at the mating position of the vehicle 5 and the light rail 4 via the bending member 53, and by constraining the vertical upward movement direction of the auxiliary wheel 52 via the upper leg 41, the vehicle 5 runs on the light rail 4 via rollers 51. When the vehicle 5 tends to deviate upward due to vibration or other reasons, the auxiliary wheel 52 and the waist 43 of the light rail 4 can prevent the vehicle 5 from derailing. Furthermore, the auxiliary wheel 52 and the bending member 53 are connected by a pivot, which also allows the auxiliary wheel 52 to roll in contact with the bottom end of the upper leg 41, preventing jamming when the auxiliary wheel 52 is positioned and improving the stability of the vehicle operation.

[0052] The working process of this utility model is as follows:

[0053] After the test air equipment is started, the vehicle 5 travels on the light rail 4. The lidar 1 on the vehicle 4 of the test air equipment scans upwards, and the pulsed laser of the lidar 1 scans upwards until the rear of the train.

[0054] The test air equipment carrier 5 runs in reverse on the light rail 4, reads the car number of the last car of the train through the car number recognition module 3, and uses the 3D camera 2 to scan and check the status of the air duct and brake chain.

[0055] Finally, after the test equipment stops below the air cylinder brake lever, it sends a braking command to the driver via the communication module. When the driver brakes, the 3D camera 2 takes a video of the brake lever to determine the test results.

[0056] After the air test equipment operation is completed, an air test operation report is automatically generated and uploaded to the station server using the 5G wireless network of the communication module.

[0057] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A test ventilation system, characterized in that: It includes a vehicle and an image recognition module and a communication module housed on the vehicle. The image recognition module and the communication module are wirelessly connected. The image recognition module includes a lidar and a 3D camera. LiDAR is used to collect distance data between the air testing equipment and key locations on the train; 3D cameras are used to collect the outline data of key locations on the train; The communication module is used to receive data from the image recognition module.

2. The test ventilation system according to claim 1, characterized in that: The lidar includes a transmitter, a receiver, and an information processing component. The transmitter emits pulsed laser light towards the target, the receiver receives the reflected pulsed laser light, and the information processing component obtains a precise contour.

3. The test ventilation system according to claim 2, characterized in that: The lidar is electrically connected to the vehicle number recognition module. The vehicle number recognition module receives the signal from the lidar when it reaches the rear of the train and is used to read the vehicle number of the last car.

4. The test ventilation system according to claim 3, characterized in that: The communication module uses 5G communication and is wirelessly connected to the 3D camera. The communication module is used to receive data captured by the 3D camera and upload it to the station server.

5. A test ventilation system according to claim 3, characterized in that: The 3D camera is mounted at an angle on the vehicle, with its shooting direction tilted upwards.

6. A test ventilation device, comprising the test ventilation system according to any one of claims 1-5, characterized in that: It includes a light rail for mounting a vehicle, the vehicle moving along the light rail, which is located on the inner side of the railway.

7. A test air device according to claim 6, characterized in that: The lightweight track is equipped with a wireless charging transmitter, which wirelessly connects to the wireless receiver of the power module. The wireless charging transmitter is connected to an external power source via a wire.

8. The test air device according to claim 6, characterized in that: The light rail has an I-shaped structure and includes an upper leg, a lower leg, and a waist section. The upper leg and the lower leg are connected by a vertically arranged waist section. The light rail fits into the inside of the railway through the lower leg and into the vehicle through the upper leg.

9. A test air device according to claim 6, characterized in that: The light rail is installed on the inside of the railway via a rail mounting structure, which includes a fastening mechanism and a positioning mechanism. Two positioning mechanisms are symmetrically arranged above the fastening mechanism. The fastening mechanism is connected to the sleeper in the middle of the railway. The positioning mechanism is used to position and install the lower legs of the light rail.

10. A test air device according to claim 6, characterized in that: The vehicle also includes rollers and auxiliary wheels. The vehicle abuts against the upper leg of the light rail via the rollers, and the auxiliary wheels are set at the waist of the light rail via bending parts.

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