Testing device for self-driving automobile

Abstract

The utility model relates to the technical field of self-driving automobile testing, and discloses a testing device for a self-driving automobile, which comprises a rack, a clamping bolt, a spraying mechanism, an angle adjusting mechanism, a water storage tank, a fog making machine and a conveying mechanism, the spraying mechanism is arranged in the rack, and the angle adjusting mechanism for driving the spraying mechanism to rotate is arranged on the rack. A conveying mechanism connected with the spraying mechanism is installed on the water storage tank and the fog making machine, the conveying mechanism comprises a water pump, a first guide pipe, a first valve, a second guide pipe, a second valve, a communicating pipe and a hose, the water pump is installed in the water storage tank, the water pump is connected with the first guide pipe, the first guide pipe is provided with the first valve, and the first guide pipe is connected with the communicating pipe; the second guide pipe is connected with the fog making machine, a second valve is installed on the second guide pipe, the second guide pipe is connected with the communicating pipe, and the communicating pipe is connected with the spraying mechanism through a hose. According to the utility model, the simulation test is convenient, and the influence of rain and fog on the self-driving automobile laser radar can be conveniently tested.

Description

Technical Field

[0001] This utility model relates to the field of autonomous vehicle testing technology, and in particular to a testing device for autonomous vehicles. Background Technology

[0002] Autonomous vehicles are cars that rely on computer systems, sensors, and other technologies to achieve driverless operation. Before being put into public service, autonomous vehicles require extensive data testing. Currently, autonomous vehicles in my country use LiDAR (Light Detection and Ranging) to scan road information. Rain and fog cause laser light to scatter and absorb during propagation, reducing the detection range and accuracy of LiDAR. This makes it difficult for LiDAR to accurately identify and measure the position, shape, and speed of objects, affecting the driving of autonomous vehicles. Current testing of the effects of rain and fog on LiDAR is conducted in rainy or foggy weather, which is highly dependent on weather conditions and cumbersome. Therefore, there is an urgent need to develop a convenient testing device for autonomous vehicles that simulates the effects of rain and fog on LiDAR, overcoming the shortcomings of current practical applications and meeting current needs. Utility Model Content

[0003] The purpose of this invention is to provide a testing device for autonomous vehicles to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A testing device for autonomous vehicles includes a frame, clamping bolts, a spraying mechanism, an angle adjustment mechanism, a water tank, a fogging machine, and a conveying mechanism. The spraying mechanism is installed inside the frame, and the angle adjustment mechanism for driving the spraying mechanism to rotate is installed on the frame. The water tank and the fogging machine are equipped with a conveying mechanism connected to the spraying mechanism. The conveying mechanism includes a water pump, a first conduit, a first valve, a second conduit, a second valve, a connecting pipe, and a flexible hose. The water pump is installed inside the water tank and connected to the first conduit. The first valve is installed on the first conduit and connected to the connecting pipe. The second conduit is connected to the fogging machine and installed with the second valve. The second conduit is connected to the connecting pipe, and the connecting pipe is connected to the spraying mechanism via a flexible hose.

[0006] Preferably, multiple clamping bolts are installed at both ends of the frame.

[0007] Preferably, the water storage tank is equipped with a detachable plug.

[0008] Preferably, the spraying mechanism includes a main pipe frame, nozzles and a rotating shaft. Multiple nozzles are provided on the lower side of the main pipe frame, and a rotating shaft is fixed at both the left and right ends of the main pipe frame. The rotating shaft is rotatably connected to the frame.

[0009] Preferably, the angle adjustment mechanism includes a drive motor, a first gear, and a second gear. The drive motor is fixed inside the frame, and the first gear is mounted on the output shaft of the drive motor. A second gear that meshes with the first gear is mounted on one side of the first gear, and the second gear is mounted on a rotating shaft.

[0010] The beneficial effects of this invention are as follows: When using this testing device for autonomous vehicles, the car initiates autonomous driving. During rain simulation testing, the first valve is opened and the second valve is closed. A water pump delivers water to a spraying mechanism, which sprays the water onto the lidar to simulate rain. The car's autonomous driving path is then observed to test the impact of rain on the lidar. During fog simulation testing, the second valve is opened and the first valve is closed. A fog generator produces fog, which is then delivered to the spraying mechanism. The fog is sprayed onto the lidar, and the car's autonomous driving path is observed to test the impact of fog on the lidar. In summary, this invention provides convenient simulation testing, facilitating the testing of the effects of rain and fog on the lidar of autonomous vehicles. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a partial structural diagram of the present invention. Figure 1 .

[0013] Figure 3 This is a partial structural diagram of the present invention. Figure 2 .

[0014] Legend:

[0015] 1. Frame; 2. Clamping bolts; 3. Spraying mechanism; 301. Main pipe frame; 302. Nozzle; 303. Rotating shaft; 4. Angle adjustment mechanism; 401. Drive motor; 402. First gear; 403. Second gear; 5. Water tank; 501. Plug; 6. Fog generator; 7. Conveying mechanism; 701. Water pump; 702. First conduit; 703. First valve; 704. Second conduit; 705. Second valve; 706. Connecting pipe; 707. Hose; 8. LiDAR. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Specific implementation examples are given below.

[0018] See Figures 1-3 In this embodiment of the present invention, a testing device for an autonomous vehicle includes a frame 1, clamping bolts 2, a spraying mechanism 3, an angle adjustment mechanism 4, a water tank 5, a fogging machine 6, a conveying mechanism 7, and a lidar 8. Multiple clamping bolts 2 are installed at both ends of the frame 1 to clamp and fix the frame 1 to the vehicle. The lidar 8 is installed on the top of the vehicle. The spraying mechanism 3 is installed inside the frame 1, and an angle adjustment mechanism for rotating the spraying mechanism 3 is installed on the frame 1. The adjustment mechanism 4, water tank 5, and fogger 6 are all located inside the vehicle. A plug 501 is detachably installed on the water tank 5; removing the plug 501 allows water to be added to the water tank 5. A conveying mechanism 7 connected to the spraying mechanism 3 is installed on the water tank 5 and the fogger 6. The conveying mechanism 7 includes: a water pump 701, a first conduit 702, a first valve 703, a second conduit 704, a second valve 705, a connecting pipe 706, and a flexible hose 707. The water pump 701 is installed inside the water tank 5. A first conduit 702 is connected to 701, and a first valve 703 is installed on the first conduit 702. The first conduit 702 is connected to a connecting pipe 706. A second conduit 704 is connected to a fog generator 6, and a second valve 705 is installed on the second conduit 704. The second conduit 704 is connected to the connecting pipe 706, and the connecting pipe 706 is connected to a spraying mechanism 3 via a hose 707. When the car starts its autonomous driving, during a rainy day simulation test, the first valve 703 is opened and the second valve 705 is closed. Water is pumped to the spraying mechanism 3 by the water pump 701, and the water is sprayed onto the lidar 8 by the spraying mechanism 3 to simulate rain. The car's autonomous driving path is then observed to test the impact of rain on the lidar 8. During a foggy day simulation test, the second valve 705 is opened and the first valve 703 is closed. Fog is produced by the fog generator 6 and delivered to the spraying mechanism 3. The fog is sprayed onto the lidar 8 by the spraying mechanism 3, and the car's autonomous driving path is then observed to test the impact of fog on the lidar 8.

[0019] The spraying mechanism 3 includes a main pipe frame 301, nozzles 302, and a rotating shaft 303. Multiple nozzles 302 are arranged on the lower side of the main pipe frame 301. A rotating shaft 303 is fixed at both ends of the main pipe frame 301, and the rotating shaft 303 is rotatably connected to the frame 1. The angle adjustment mechanism 4 includes a drive motor 401, a first gear 402, and a second gear 403. The drive motor 401 is fixed inside the frame 1. The first gear 402 is mounted on the output shaft of the drive motor 401. A second gear 403 meshes with the first gear 402 on one side of the first gear 402. The second gear 403 is mounted on the rotating shaft 303. In use, the drive motor 401 drives the first gear 402 and the second gear 403 to rotate, which in turn drives the rotating shaft 303, the main pipe frame 301, and the nozzles 302 to rotate, thereby adjusting the spraying angle of the nozzles 302.

[0020] Working principle: This testing device for autonomous vehicles operates as follows: When the vehicle starts its autonomous driving mode, during rain simulation testing, the first valve 703 is opened and the second valve 705 is closed. Water is pumped by the water pump 701 to the spraying mechanism 3, which sprays the water onto the lidar 8 to simulate rain. The vehicle's autonomous driving path is then observed to test the impact of rain on the lidar 8. During fog simulation testing, the second valve 705 is opened and the first valve 703 is closed. Fog is generated by the fog generator 6 and delivered to the spraying mechanism 3. The fog is sprayed onto the lidar 8, and the vehicle's autonomous driving path is then observed to test the impact of fog on the lidar 8.

[0021] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A testing device for autonomous vehicles, characterized in that, The system includes a frame (1), clamping bolts (2), a spraying mechanism (3), an angle adjustment mechanism (4), a water tank (5), a fogging machine (6), and a conveying mechanism (7). The spraying mechanism (3) is installed inside the frame (1). The angle adjustment mechanism (4) for driving the spraying mechanism (3) to rotate is installed on the frame (1). The water tank (5) and the fogging machine (6) are equipped with a conveying mechanism (7) connected to the spraying mechanism (3). The conveying mechanism (7) includes: a water pump (701), a first conduit (702), a first valve (703), a second conduit (704), and a second valve (705). The water pump (701) is installed in the water storage tank (5). The water pump (701) is connected to the first conduit (702). The first conduit (702) is equipped with a first valve (703). The first conduit (702) is connected to the connecting pipe (706). The second conduit (704) is connected to the fogger (6). The second conduit (704) is equipped with a second valve (705). The second conduit (704) is connected to the connecting pipe (706). The connecting pipe (706) is connected to the spraying mechanism (3) through the hose (707).

2. The testing apparatus for autonomous vehicles according to claim 1, characterized in that, Multiple clamping bolts (2) are installed at both ends of the frame (1).

3. The testing apparatus for autonomous vehicles according to claim 1, characterized in that, A plug (501) can be detachably installed on the water storage tank (5).

4. The testing apparatus for autonomous vehicles according to claim 1, characterized in that, The spraying mechanism (3) includes: a main pipe frame (301), nozzles (302) and a rotating shaft (303). Multiple nozzles (302) are provided on the lower side of the main pipe frame (301). A rotating shaft (303) is fixed at both the left and right ends of the main pipe frame (301). The rotating shaft (303) is rotatably connected to the frame (1).

5. The testing apparatus for autonomous vehicles according to claim 4, characterized in that, The angle adjustment mechanism (4) includes: a drive motor (401), a first gear (402) and a second gear (403). The drive motor (401) is fixed inside the frame (1). The first gear (402) is mounted on the output shaft of the drive motor (401). A second gear (403) meshing with the first gear (402) is mounted on one side of the first gear (402). The second gear (403) is mounted on the rotating shaft (303).

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