A railway infrastructure geometry measuring vehicle

Abstract

The present application belongs to the field of railway facility measurement, and specifically provides a railway infrastructure geometric parameter measurement vehicle. The measurement vehicle is provided with a measurement system and a control system on the vehicle body. The measurement system comprises multiple measurement components, and the control system comprises a first industrial computer and a second industrial computer. Part of the components of the measurement system are in communication connection with the first industrial computer, and another part of the components are in communication connection with the second industrial computer. The two industrial computers are arranged horizontally on the vehicle body, and the vehicle body completely covers the two industrial computers. Ventilation openings are formed on the front and rear ends of the vehicle body to form air ducts for cooling the two industrial computers. The two low-power industrial computers are responsible for different control operations to meet the intelligent measurement requirements, and the heating problem of the measurement vehicle can be better controlled. Meanwhile, the vehicle body is provided with a forced air cooling structure to actively cool the industrial computers by using cooling air, thereby solving the problem of difficult heat dissipation of the measurement vehicle.

Description

Technical Field

[0001] This invention belongs to the field of railway facility measurement, and in particular relates to a railway infrastructure geometric parameter measuring vehicle. Background Technology

[0002] Measurement of geometric parameters for railway infrastructure is crucial for the operation of both new and existing lines, especially in electrified railway systems. Key parameters such as contact wire height and pull-out value directly affect the stable contact between the train's pantograph and the overhead contact line. During the construction of new lines, these parameters must be strictly controlled to ensure they meet design requirements, thereby guaranteeing power transmission efficiency and train operation safety. For existing lines, these parameters are affected by factors such as track settlement, train load, and temperature changes, causing them to shift over time and requiring regular measurement and adjustment.

[0003] With the rapid advancements in detection technologies such as radar and machine vision, as well as AI (Artificial Intelligence) technology, railway infrastructure inspection will evolve from manual inspection to intelligent and automated processes. Through extensive and creative research, the applicant believes that a track-mounted trolley can be used to carry measuring devices such as radar and cameras, along with high-performance controllers. During testing, the trolley can travel along a laid track to automate the measurement of geometric parameters, significantly improving inspection efficiency and reducing the workload of personnel.

[0004] To facilitate operation, the size and weight of the measuring cart should be controlled within a suitable range, which places higher demands on the compactness of the measuring cart. However, the high-performance controller needs to be placed inside the cart, which leads to the problem of difficult heat dissipation inside.

[0005] It should be noted that the background technology described above is only for the convenience of understanding, searching and examining the present invention, and does not necessarily belong to the prior art. Summary of the Invention

[0006] The purpose of this invention is to provide a railway infrastructure geometric parameter measuring vehicle to solve the technical problem of heat dissipation inside the measuring vehicle.

[0007] To achieve the above objectives, the technical solution of the railway infrastructure geometric parameter measuring vehicle provided by this invention is as follows: A railway infrastructure geometric parameter measuring vehicle includes a vehicle body, on which a measuring system, a control system, and a power supply are mounted. The measuring system includes multiple measuring components for measuring corresponding geometric parameters. The control system is communicatively connected to the measuring system to control the measuring system and calculate the results measured by each measuring component. The power supply provides power to all components of the measuring vehicle. The control system includes a first industrial control computer and a second industrial control computer. Some components of the measuring system are communicatively connected to the first industrial control computer, and other components are communicatively connected to the second industrial control computer. The two industrial control computers are arranged laterally on the vehicle body, and the vehicle body completely covers the two industrial control computers. Ventilation openings are provided at the front and rear ends of the vehicle body to form air ducts for cooling the two industrial control computers.

[0008] As a further improvement, a lateral gap is provided between the two industrial control computers, the rear air vents of the vehicle body face the lateral gap, and there are two air vents at the front, each facing one of the two industrial control computers.

[0009] As a further improvement, each industrial computer is mounted on the chassis of the vehicle body via an industrial computer rack, and a support leg is provided between the bottom of the industrial computer and the industrial computer rack to create a ventilation gap between the bottom of the industrial computer and the industrial computer rack.

[0010] As a further improvement, the industrial control computer rack is equipped with a pressure plate that presses down on the top of the industrial control computer, and the pressure plate has a heat dissipation vent that runs through the top and bottom.

[0011] As a further improvement, the pressure plate has multiple upward-bending folds, the openings formed at the folds constitute the heat dissipation vents, and the air ducts extending longitudinally are formed between two adjacent folds.

[0012] As a further improvement, the industrial control rack has a double or multi-layer structure, with the industrial control computer placed on the bottom layer and communication components located on the rack layer above the industrial control computer.

[0013] As a further improvement, the measurement system includes an omnidirectional radar, which is mounted on the chassis via a frame-type radar mounting bracket located on the air duct path formed by the vents at the front and rear ends.

[0014] As a further improvement, the power supply includes two batteries respectively located on the lateral sides of the vehicle body, with the vents at the front and rear ends centrally located between the two batteries in the lateral direction.

[0015] As a further improvement, each battery is mounted on the chassis of the vehicle body, and each battery is equipped with a battery cover that can be flipped up and down.

[0016] As a further improvement, the vehicle body includes an upper body and a lower body. An open opening is provided in the center of the lower body. In the vertical projection, the first and second industrial control computers are located within the open opening. The upper body is adapted to be installed at the opening to close it. Some components of the measurement system are installed on the upper body.

[0017] The beneficial effects are as follows: This invention innovatively provides a measuring vehicle capable of intelligent measurement and with good heat dissipation, used for measuring the geometric parameters of railway infrastructure. Specifically, the measuring system mounted on the vehicle can directly measure the geometric parameters of corresponding features. The control system, acting as the "brain" of the measuring vehicle, is responsible for controlling and calculating the measurement results to form the final measurement data. The power supply serves as the power source for the measuring vehicle. The control system is equipped with a first and a second industrial control computer, which are respectively connected to different measuring components and are responsible for different calculations. At this time, the computing power of the two industrial control computers does not need to be too high, the power consumption is low, and their own heat generation is easier to control. At the same time, the cost is low (compared to high-computing-power chips). Ventilation vents are set at the front and rear ends of the vehicle body, which can form convection airflow to actively dissipate heat from the two industrial control computers during the movement of the measuring vehicle.

[0018] In summary, this invention employs two low-power industrial control computers to handle different control operations, thereby meeting the needs of intelligent measurement while effectively controlling the heat generation of the measurement vehicle. Additionally, the vehicle body is equipped with an active air-cooling structure to actively dissipate heat from the industrial control computers using cooling air, thus solving the problem of heat dissipation difficulties in the measurement vehicle. Attached Figure Description

[0019] Figure 1 This is a perspective view of an embodiment of the railway infrastructure geometric parameter measuring vehicle in this invention; Figure 2 This is a perspective view of another implementation method of the railway infrastructure geometric parameter measuring vehicle in this invention; Figure 3 This is a perspective view (upper part of the vehicle body is hidden) of the implementation method of the railway infrastructure geometric parameter measuring vehicle in this invention. Figure 4 This is a perspective view (hiding the upper part of the vehicle body) of the railway infrastructure geometric parameter measuring vehicle embodiment in this invention. Figure 5 This is a perspective view (with the vehicle body hidden) of an embodiment of the railway infrastructure geometric parameter measuring vehicle in this invention. Figure 6 This is a three-dimensional view of the chassis of the railway infrastructure geometric parameter measuring vehicle embodiment in this invention; Figure 7 This is a schematic diagram of the first industrial control computer installation method in the embodiment of the railway infrastructure geometric parameter measuring vehicle of the present invention; Figure 8 for Figure 7 Schematic diagram of the intermediate pressure plate.

[0020] Explanation of reference numerals in the attached figures: 1. Chassis; 2. First Battery; 3. Rear Wheel; 4. Handlebar; 5. Horizontal Laser Rangefinder; 6. Lower Body; 7. Window; 8. Battery Cover; 9. Touch Screen; 10. Wireless Communication Module; 11. Multi-DOF Laser Rangefinder; 12. Omnidirectional Radar; 13. Upper Body; 14. Forward Camera; 15. Side Camera; 16. Lighting; 17. Front Vent; 18. Upward Camera; 19. Front Wheel; 20. Rear Vent; 21. Second Battery; 22. Radar Mounting Bracket; 23. First Industrial Computer Component; 24. Second Industrial Computer Component; 101. Longitudinal Beam; 102. Crossbeam; 2301. First Industrial Computer; 2302. Pressure Plate; 2303. Industrial Computer Frame; 2304. Router; 2305. Outrigger; 2306. Heat Dissipation Vent. Detailed Implementation

[0021] For electrified railway systems, the geometric parameters of their infrastructure (such as contact wire height, contact wire pull-out value, and gantry clearance) directly affect the safe operation of trains. Whether on existing or newly constructed lines, it is necessary to measure these geometric parameters. Currently, the mainstream method is still manual measurement using auxiliary tools, but the development of automated and intelligent measurement equipment is an inevitable trend.

[0022] Automation and intelligence mean that measuring equipment needs to be equipped with high-precision measuring devices and high-computing-power controllers, which will bring about power consumption and heat generation issues. In order to facilitate use by field personnel, the size of the measuring equipment cannot be too large, and compactness is a factor that needs to be considered. This undoubtedly brings new challenges to the development of measuring equipment.

[0023] The basic technical concept of this invention is to equip two low-power industrial control computers to perform different measurement calculations and control heat generation. At the same time, ventilation openings are opened at the front and rear ends of the measuring equipment (cart) to create convection airflow during the operation of the measuring vehicle, thereby actively cooling the industrial control computers.

[0024] Based on the above concept, the present invention will be further described in detail below with reference to the embodiments.

[0025] The railway infrastructure geometric parameter measuring vehicle (hereinafter referred to as the measuring vehicle) provided in this embodiment is generally as follows: Figure 1 and Figure 2 As shown, from an external perspective, it is a small vehicle that can move along a track. Specifically, the measuring vehicle includes a vehicle body, which is the basic part of the measuring vehicle. It is not difficult to understand that the vehicle body includes a chassis 1 and a body.

[0026] To facilitate the description of the orientation of the various parts of the surveying vehicle, and according to common understanding in this field, the direction of movement of the surveying vehicle is longitudinal, that is... Figure 1 In this context, the X-axis, or the forward / backward direction, is the horizontal direction that is perpendicular to the direction of movement and extends horizontally. Figure 1 The Y direction, or left-right direction, is the direction of movement, while the Z direction, or up-down direction, is the vertical direction.

[0027] The vehicle body is equipped with a running system that allows it to move autonomously along a track. Specifically, the running system should be equipped with a drive motor. More specifically, the running system includes a front wheel set and a rear wheel set. The front wheel set includes two front wheels 19, and the rear wheel set includes two rear wheels 3. At least one of the front wheel set and the rear wheel set is a drive wheel set equipped with a drive motor. The drive motor can be a hub motor or a wheel-side motor, so that the measuring vehicle can be configured as a front-wheel drive, rear-wheel drive, or four-wheel drive vehicle.

[0028] The vehicle is equipped with a measurement system and a control system. The measurement system measures the parameter values ​​of feature points and includes multiple measuring components, each used to measure corresponding geometric parameters. The control system, acting as the brain of the measurement vehicle, is responsible for controlling all parts of the vehicle. It communicates with the measurement system, and the specific connection protocol can adopt existing technologies, such as the RS232 standard. The control system can control the measurement system and calculate the measurement results of each measuring component.

[0029] Specifically, in some embodiments, the measurement system includes an omnidirectional radar 12 and a multi-degree-of-freedom laser rangefinder 11. During the movement of the measurement vehicle, the omnidirectional radar 12 can perform 360° real-time scanning and measurement of key parameters of the catenary infrastructure, such as the height of the catenary cable, the conductor height of the contact wire, the contact wire pull-out value, and the position of the droppers. Specifically, the omnidirectional radar 12 is an existing product; for example, a lidar can be used, and more specifically, the German SICK LRS4000 can be selected.

[0030] The multi-degree-of-freedom laser rangefinder 11 has at least pitch and horizontal rotation degrees of freedom. In other words, the multi-degree-of-freedom laser rangefinder 11 is mounted on a mounting base with pitch and horizontal rotation degrees of freedom, and the measuring head can be adjusted to face the feature point by controlling the pitch and horizontal rotation of the multi-degree-of-freedom laser rangefinder 11. Specifically, the laser rangefinder is an existing product that can be directly purchased from the market by those skilled in the art. It specifically includes a camera and a measuring head. The camera can be a Medvision MV-GEM133GC / MTF, and the measuring head can be a Swiss DPE-10-500.

[0031] Naturally, the measuring vehicle also includes a power supply to power all electrical components of the measuring vehicle, which can be a rechargeable lithium battery.

[0032] In some embodiments, the measuring vehicle further includes a vision system, which includes an upward-facing camera 18 with its lens pointing upwards, capable of capturing images of feature points directly above the measuring vehicle. The vision system also includes an oblique camera with its lens pointing obliquely upwards, capable of capturing images of feature points obliquely above the equipment. Specifically, in some embodiments, such as... Figure 1 As shown, the lens of the angled camera can be arranged at an angle upward and forward to form a forward-facing camera 14.

[0033] It should be noted that both the oblique camera and the upward camera 18 are existing technologies, such as Hikvision industrial cameras.

[0034] The vision system communicates with the control system, and the specific connection protocol is existing technology.

[0035] The control system includes processing and communication modules to recognize images acquired by the vision system and control the multi-degree-of-freedom laser rangefinder to measure data of corresponding feature points. For example, when measuring the height of the bottom of a suspended column from the rail plane, the measuring vehicle moves into position and stops. After the vision system acquires an image of the bottom of the suspended column, the control system identifies the angle of the detection point and then controls the multi-degree-of-freedom laser rangefinder 11 to scan the data value of the detection point, ultimately obtaining the parameter value.

[0036] When the control system has sufficient computing power, it can also process images to obtain real-time complete image information of the infrastructure around the overhead contact line.

[0037] As can be seen from the above introduction, the measuring vehicle provided in this embodiment, through its innovative design of "mobile automation + visual recognition control + multi-degree-of-freedom adaptation", can significantly improve the intelligence and automation level of railway infrastructure measurement.

[0038] Because the measurement system has many components, this embodiment configures the measurement system with two industrial control computers. Specifically, the control system includes a first industrial control computer 2301 and a second industrial control computer. The first and second industrial control computers are arranged laterally on the vehicle body. Some components of the measurement system are communicatively connected to the first industrial control computer 2301, while other components are connected to the second industrial control computer. For example, the multi-degree-of-freedom laser rangefinder 11 and the omnidirectional radar 12 are connected to the first industrial control computer 2301, and the remaining components are connected to the second industrial control computer. In this case, since the first industrial control computer 2301 has a larger computational load, it can also be called the main industrial control computer, and the second industrial control computer is the auxiliary industrial control computer. Of course, in some embodiments, the computing power of the two industrial control computers can also be evenly distributed.

[0039] like Figure 1 and Figure 2 As shown, the body of the measuring vehicle completely covers the two industrial control computers to provide basic protection. Considering heat dissipation, as... Figures 1-4As shown, ventilation openings are provided at the front and rear ends of the vehicle body, namely the front ventilation opening 17 and the rear ventilation opening 20, which can form an air duct to actively cool the two industrial control computers.

[0040] During the measurement process, as the measuring vehicle moves, the front vent 17 and the rear vent 20 can create convective airflow, which blows towards the two industrial control computers, thereby dissipating heat from the main control computer.

[0041] Both the front air vent 17 and the rear air vent 20 can be formed by small grille-like holes opened on the vehicle body.

[0042] Both the first industrial control computer 2301 and the second industrial control computer are mounted on the vehicle body via an industrial control computer rack 2303 (specifically, they can be mounted on chassis 1). Due to the relatively complex structure of the measuring vehicle and the limited drawing area, in some of the attached drawings, multiple components including the industrial control computer and the industrial control computer rack 2303 are defined as industrial control computer assemblies, namely the first industrial control computer assembly 23 and the second industrial control computer assembly 24 shown in the figure. The two industrial control computers can be mounted on the vehicle body using the same industrial control computer rack 2303.

[0043] In some implementations, such as Figures 3-5 As shown, the two industrial control computers (i.e., the first industrial control computer component 23 and the second industrial control computer component 24) are arranged horizontally with a horizontal gap between them. The rear ventilation opening 20 at the rear of the vehicle body is directly opposite the horizontal gap, and the front ventilation opening 17 at the front of the vehicle body has two openings, each directly opposite the two industrial control computers. The air duct formed by this ventilation opening arrangement can directly guide the convective air to blow towards the industrial control computers, which has a better heat dissipation effect.

[0044] In some implementations, such as Figure 5 and Figure 7 As shown, the bottom of the industrial computer can be raised to facilitate the formation of an air duct at the bottom, further improving heat dissipation. Taking the first industrial computer 2301 as an example, a support leg 2305 is provided between the bottom of the first industrial computer 2301 and the industrial computer frame 2303. Specifically, four support legs 2305 can be set at the four corners of the first industrial computer 2301. The support legs 2305 raise the first industrial computer 2301, creating a ventilation gap between the bottom of the industrial computer and the industrial computer frame 2303. The second industrial computer can adopt the same installation method, which will not be described in detail.

[0045] It should be noted that the function of the support legs 2305 is to form a stable support structure. This is not limited to four legs. Ideally, regardless of the number of support legs 2305, the overall structure should be able to provide stable support for the industrial control computer and allow for ventilation.

[0046] In some implementations, such as Figure 7 and Figure 8As shown, a pressure plate 2302 is provided on the industrial control computer rack 2303 to press down on the top of the industrial control computer, and a heat dissipation vent 2306 is provided on the pressure plate 2302. First, the pressure plate 2302 can fix the industrial control computer to improve the reliability of the fixation. Second, the heat dissipation vent 2306 can also ensure the actual heat dissipation effect of the industrial control computer.

[0047] Furthermore, the pressure plate 2302 can be made of sheet metal and fixed to the industrial control computer frame 2303 with bolts. The pressure plate 2302 has multiple upward-bent flanges, and the openings formed at these flanges constitute heat dissipation vents 2306. (See reference...) Figure 8 The two adjacent folds form a duct that extends longitudinally in the front-back direction. At this time, the folds can guide the convective airflow through the heat dissipation port 2306, ensuring that the heat can be reliably carried away.

[0048] Furthermore, in some implementations, the industrial control rack 2303 can be configured with a double-layer or three-layer structure, with the industrial control computer placed on the bottom layer, and communication components arranged on the other rack layers. Figure 7 Taking the illustrated two-layer structure as an example, the first industrial control computer 2301 is placed on the lower layer of the industrial control rack 2303, and a router 2304 is set on the upper layer. Of course, the communication component can also be a serial server, etc. This design can make full use of the vertical space of the industrial control rack 2303 and ensure that the communication component can also be cooled in time.

[0049] In some implementations, such as Figure 4 and Figure 5 As shown, the omnidirectional radar 12 is mounted on the chassis 1 by a frame-type radar mounting bracket 22. The radar mounting bracket 22 is located on the air duct path formed by the ventilation openings at the front and rear ends. This ensures that the omnidirectional radar 12 can be reliably installed and that the omnidirectional radar 12 can be cooled by convection airflow, thus ensuring the heat dissipation effect.

[0050] Similarly, in some embodiments, the multi-degree-of-freedom laser rangefinder 11 can also be mounted on the chassis 1 via a frame-type mounting bracket.

[0051] In some embodiments, the vehicle body can be divided into two parts, namely the upper part 13 and the lower part 6, such as... Figures 1-4As shown, an open opening is provided at the center of the upper part 13 of the vehicle body. The first industrial control computer 2301 and the second industrial control computer are located inside the open opening. Specifically, in the vertical projection, the first industrial control computer 2301 and the second industrial control computer are located inside the open opening. The upper part 13 of the vehicle body is adapted to be installed at the opening to close it. This makes it easier to assemble the first and second industrial control computers on the chassis 1. At the same time, some components of the measurement system are installed using the space at the top of the lower part 6 of the vehicle body. For example, in some embodiments, the measurement system also includes a side camera 15. The side camera 15 is located on both longitudinal sides of the lower part 6 of the vehicle body with the lens facing outward, for collecting information from the trackside equipment and transmitting the trackside equipment information to the control system, thereby measuring the distance of the four electrical (communication, signal, power, and traction power supply) equipment on the trackside from the track centerline.

[0052] Of course, the upward-facing camera 18 and the forward-facing camera 14 equipped with the vision system can also be arranged on the lower part of the vehicle body 6.

[0053] In some implementations, a touch screen 9 is also installed at the top of the lower part 6 of the vehicle body, so that staff can operate the measuring vehicle in real time and obtain measurement information.

[0054] Considering the poor lighting conditions inside the tunnel, in some implementations, the surveying vehicle can be equipped with a full-vehicle lighting system 16.

[0055] In some implementations, a wireless communication module 10 can also be configured to upload test results in real time, and also to facilitate remote control of the measuring vehicle by staff. The wireless communication module 10 and the protocol can both adopt existing technologies.

[0056] In some preferred embodiments, such as Figures 1-5 As shown, the power supply includes two batteries, which are respectively located on the lateral sides of the vehicle body, namely the first battery 2 and the second battery 21 shown in the figure. The front vent 17 and the rear vent 20 are located between the first battery 2 and the second battery 21, so that the batteries are kept as far away from the air duct as possible, and the batteries can also play a role in balancing the weight.

[0057] Specifically, the first battery 2 and the second battery 21 can supply power to different systems on the measurement side, for example, one can power the traveling system and the other can power the other components. Since the measurement system, vision system, and control system include multiple high-power components, equipping them with separate power supply batteries can ensure that each system can operate normally for a longer period of time. At the same time, equipping the traveling system with a separate power supply battery can ensure that the measurement vehicle has sufficient range to meet measurement needs.

[0058] More preferably, both the first battery 2 and the second battery 21 are mounted on the chassis 1. Specifically, they can be mounted on the chassis 1 using a frame of suitable size and shape. The chassis 1 is equipped with a load-bearing frame to ensure that the batteries can be reliably fixed. To facilitate the disassembly, assembly, and maintenance of the batteries, a battery cover 8 that can be flipped open and closed is provided on the vehicle body for both the first battery 2 and the second battery 21. Specifically, the battery cover 8 is located at the lower part 6 of the vehicle body. The battery cover 8 can be hinged to the lower part 6 of the vehicle body using an existing hinge structure to achieve flipping and opening. The battery cover 8 shown in the figure is in the open state; in the closed state, the battery cover 8 is flush with the vehicle body.

[0059] Furthermore, the measurement system also includes two horizontal laser rangefinders 5, located beside the two batteries and specifically mounted on the chassis 1, for measuring the support clearance, i.e., the distance from the side of the support to the centerline of the track. A window 7 is provided on the battery cover 8, such as... Figure 1 As shown, window 7 allows the laser beam from the horizontal laser rangefinder 5 to pass through. During normal driving measurements, the battery cover 8 provides protection for the horizontal laser rangefinder 5.

[0060] To ensure the load-bearing capacity of the chassis 11, in some embodiments, such as Figure 6 As shown, the chassis 1 includes two longitudinal beams 101 on the left and right and three cross beams 102 between the two longitudinal beams 101. Mounting points are provided on the cross beams 102 for the installation of corresponding components.

[0061] To facilitate the lifting of the measuring vehicle by hand by staff, handles 4 are also provided on the left and right sides of the chassis 1.

[0062] It should be added that, in some other implementations, depending on the measurement parameters and considering the rapid development of future detection technologies, the measurement system is not necessarily limited to the preferred methods provided above. For example, it can be equipped with multiple ultrasonic radars, millimeter-wave radars, etc. The core of this invention lies in how the industrial control computer and heat dissipation method are set.

[0063] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A railway infrastructure geometric parameter measuring vehicle, characterized in that, The vehicle includes a body, on which are mounted a measurement system, a control system, and a power supply. The measurement system includes multiple measuring components for measuring corresponding geometric parameters. The control system is communicatively connected to the measurement system to control the measurement system and calculate the results measured by each measuring component. The power supply provides power to all components of the measurement vehicle. The control system includes a first industrial control computer and a second industrial control computer. Some components of the measurement system are communicatively connected to the first industrial control computer, and other components are communicatively connected to the second industrial control computer. The two industrial control computers are arranged horizontally on the vehicle body, and the vehicle body completely covers the two industrial control computers. Ventilation openings are provided at the front and rear ends of the vehicle body to form air ducts for cooling the two industrial control computers.

2. The railway infrastructure geometric parameter measuring vehicle according to claim 1, characterized in that, There is a lateral gap between the two industrial control computers. The air vents at the rear of the vehicle body face the lateral gap, and there are two air vents at the front, each facing one of the two industrial control computers.

3. The railway infrastructure geometric parameter measuring vehicle according to claim 1 or 2, characterized in that, Each industrial computer is mounted on the chassis of the vehicle body via an industrial computer rack, and a support leg is provided between the bottom of the industrial computer and the industrial computer rack to create a ventilation gap between the bottom of the industrial computer and the industrial computer rack.

4. The railway infrastructure geometric parameter measuring vehicle according to claim 3, characterized in that, The industrial control computer rack is equipped with a pressure plate that presses down on the top of the industrial control computer, and the pressure plate has a heat dissipation vent that runs through the top and bottom.

5. The railway infrastructure geometric parameter measuring vehicle according to claim 4, characterized in that, The pressure plate has multiple upward-bending folds, and the openings formed at the folds constitute the heat dissipation vents. The air ducts extending longitudinally are formed between two adjacent folds.

6. The railway infrastructure geometric parameter measuring vehicle according to claim 3, characterized in that, The industrial control rack has a double or multi-layer structure, with the industrial control computer placed on the bottom layer, and communication components located on the rack layer above the industrial control computer.

7. The railway infrastructure geometric parameter measuring vehicle according to claim 1 or 2, characterized in that, The measurement system includes an omnidirectional radar, which is mounted on the chassis via a frame-type radar mounting bracket located on the air duct path formed by the vents at the front and rear ends.

8. The railway infrastructure geometric parameter measuring vehicle according to claim 1 or 2, characterized in that, The power supply consists of two batteries located on the two sides of the vehicle body, with the ventilation openings at the front and rear ends centered between the two batteries.

9. The railway infrastructure geometric parameter measuring vehicle according to claim 8, characterized in that, Each battery is mounted on the chassis of the vehicle, and each battery is equipped with a battery cover that can be flipped up and down.

10. The railway infrastructure geometric parameter measuring vehicle according to claim 1 or 2, characterized in that, The vehicle body includes an upper body and a lower body. An open opening is provided in the center of the lower body. In the vertical projection, the first and second industrial control computers are located inside the open opening. The upper body is fitted with a device to close the opening. Some components of the measurement system are mounted on the upper body.

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