Internet intelligent automobile radar testing device

Abstract

The utility model relates to the technical field of automobile radar testing, in particular to an internet intelligent automobile radar testing device which comprises two T-shaped supporting columns, two guide rails fixed between the bottoms of the two T-shaped supporting columns, a shaft rod fixed between the two T-shaped supporting columns, and a moving vehicle connected to the two guide rails in a rolling mode. And a [-shaped frame is fixed to the top face of the moving trolley, two telescopic pieces are fixed to the top face of the [-shaped frame, and a carrying plate is fixed between the tops of the two telescopic pieces. According to the utility model, the mobile vehicle drives the radar on the carrier plate to move towards the test plate, the radar on the simulated vehicle moves to detect an obstacle, the second connecting shaft drives the transmission rod to push the carrier plate upwards in a reciprocating manner in the moving process of the mobile vehicle, and the carrier plate drives the radar to detect the test plate in a bumpy scene under the cooperation of the bumpy spring. The working condition of vehicle bumping is simulated, various parameters of the test board are detected by the test radar under the bumping condition, and the accuracy of a test result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile radar testing, in particular to an Internet intelligent automobile radar testing device. Background Art

[0002] LiDAR is a key part of the environmental perception technology of intelligent connected vehicles. It is of great significance to realize the functions of automatic driving and assisted driving of vehicles. Compared with other types of sensors, LiDAR can realize 3D imaging, obtain more accurate location information, and can still work normally at night or in bad weather conditions. During the development of LiDAR, it is necessary to perform performance tests on the radar. During the test, the test board will be arranged at different distances in front of the radar. The radar transmits a detection signal to the test board, and then receives the signal reflected from the target, and compares the reflected signal with the transmitted signal. After appropriate processing, the relevant information of the test board target can be obtained, such as target distance, direction, height and even shape parameters;

[0003] At present, most related test devices generally fix the radar in a certain position, and then move the test board toward the radar position to test the radar's detection of obstacles at different distances. For example, the authorization announcement number is "CN217718096U", which is a laser radar test device for intelligent connected vehicles. This test device drives the test bench to move the test board toward the radar through the screw rotation to test the detection parameters of the radar at different distances from the test board. The radar will be installed on the car during actual use. Compared with the obstacle (test board), the radar can move its position, and the obstacle remains still to be more in line with the test scenario. In addition, this type of test device cannot simulate the detection of the radar when the car is bumpy and causes the radar to shake, because in reality the obstacles detected by the radar are not made of the same material, and test boards of different materials cannot be arranged in front of the radar for testing. Utility Model Content

[0004] The purpose of the utility model is to provide an Internet intelligent automobile radar testing device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] Internet intelligent vehicle radar test device, including two T-shaped struts, between the bottoms of the two T-shaped struts are fixed two guide rails, between the two T-shaped struts is fixed a shaft rod, on the two guide rails is rollingly connected a moving vehicle, on the top surface of the moving vehicle is fixed a C-shaped frame, on the top surface of the C-shaped frame are fixed two telescopic members, between the tops of the two telescopic members is fixed a carrier plate, on the top surface of the carrier plate are fixed two clamps for clamping the radar body, at both ends of the moving vehicle are rotatably connected a first connecting shaft, in the middle of the moving vehicle is rotatably connected a second connecting shaft, in the middle of the second connecting shaft is drivingly connected a transmission rod for driving the carrier plate to jolt up and down, on the outer side of the shaft rod is slidably clamped an external thread tube, on the outer side of the external thread tube is screwed a collar, on the outer side of the collar are evenly fixed a plurality of test plates.

[0007] Further, on the outer side of the shaft rod is provided a chute, and on the inner side of the external thread tube is fixed a slider slidably connected with the chute.

[0008] Further, at both ends of the first connecting shaft and the second connecting shaft are fixed rollers rollingly connected with the guide rails, inside the moving vehicle is fixed a dual-shaft motor for driving the first connecting shaft at the corresponding position to rotate, and the second connecting shaft and the first connecting shaft at the corresponding position are drivingly connected through a synchronous belt.

[0009] Further, in the middle of the second connecting shaft is fixed a C-shaped shaft, the bottom end of the transmission rod is rotatably connected with the C-shaped shaft, and the top end of the transmission rod is rotatably connected with a jacking rod slidably inserted into the C-shaped frame.

[0010] Further, the telescopic member includes a first sleeve fixedly connected with the C-shaped frame, on the outer side of the first sleeve is slidably sleeved a second sleeve fixedly connected with the carrier plate, and inside the first sleeve and the second sleeve are provided jolting springs.

[0011] Further, the clamp includes a support seat fixedly connected with the carrier plate, on the top of the support seat is fixed an electric push rod, and the output end of the electric push rod is fixed with a clamping plate.

[0012] Further, on the top of the carrier plate is fixed a wire harness holder, the wire harness holder includes a support rod, on the top of the support rod is fixed a third sleeve slidably sleeved with the shaft rod, and on the outer side of the third sleeve are fixed two connecting blocks.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. The double-axis motor drives the first connecting shaft to rotate, causing the roller to roll on the guide rail. Consequently, the moving vehicle moves the radar on its top carrier plate towards the test plate, simulating the situation where the radar on a vehicle encounters an obstacle during driving. The moving vehicle moves the radar to different distances from the test plate, thereby testing various parameters of the signal emitted by the lidar and the signal received after reflection from the target.

[0015] 2. By rotating the collar on the external threaded tube, test plates made of different materials at different positions on the collar can be rotated to the front of the corresponding radar, facilitating the testing of various parameters of the radar detecting test plates made of different materials. Moreover, the collar is screwed onto the external threaded tube, enabling the test plate rotated to the front position of the radar to maintain its position fixed.

[0016] 3. The first connecting shaft drives the second connecting shaft to rotate through a synchronous belt. The second connecting shaft drives the transmission rod to eccentrically rotate around the second connecting shaft through a C-shaped shaft. As a result, the transmission rod drives the carrier plate to move upward through the lifting rod. When the lifting rod moves downward to release the carrier plate, the bump spring causes the carrier plate to bump up and down, thereby enabling the carrier plate to drive the radar to bump and simulate the working condition of vehicle bumping, achieving the testing of various parameters of the radar detecting the test plate under bumpy conditions and improving the accuracy of the test results. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the external threaded tube, collar, and test plate in the present utility model;

[0019] Figure 3 is a schematic diagram of the overall structure of the top of the moving vehicle in the present utility model;

[0020] Figure 4 is a schematic diagram of the overall structure of the top of the C-shaped frame in the present utility model;

[0021] Figure 5 is a schematic diagram of the overall external structure of the first connecting shaft and the second connecting shaft in the present utility model.

[0022] In the figure: 100, T-shaped support; 110, guide rail; 120, shaft rod; 200, moving vehicle; 210, C-shaped frame; 220, first connecting shaft; 230, second connecting shaft; 231, C-shaped shaft; 240, double-axis motor; 300, telescopic member; 310, first sleeve; 320, second sleeve; 330, bump spring; 400, carrier plate; 410, fixture; 411, support seat; 412, electric push rod; 413, clamping plate; 420, wire harness holder; 421, third sleeve; 422, connecting block; 500, radar body; 600, transmission rod; 610, lifting rod; 700, external threaded tube; 710, collar; 711, test plate. Detailed implementation manners

[0023] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] Please refer to Figure 1-5 , in the embodiment of the present utility model, an Internet intelligent vehicle radar testing device includes two T-shaped struts 100. Between the bottoms of the two T-shaped struts 100, two guide rails 110 are fixed. Between the two T-shaped struts 100, a shaft rod 120 is fixed. On the two guide rails 110, a moving vehicle 200 is rollingly connected. On the top surface of the moving vehicle 200, a C-shaped frame 210 is fixed. On the top surface of the C-shaped frame 210, two telescopic members 300 are fixed. Between the tops of the two telescopic members 300, a carrier plate 400 is fixed. On the top surface of the carrier plate 400, two clamps 410 for clamping a radar body 500 are fixed. At both ends of the moving vehicle 200, a first connecting shaft 220 is rotatably connected. In the middle of the moving vehicle 200, a second connecting shaft 230 is rotatably connected. In the middle of the second connecting shaft 230, a transmission rod 600 for driving the carrier plate 400 to jolt up and down is drivingly connected. On the outer side of the shaft rod 120, an external thread tube 700 is slidably clamped. On the outer side of the external thread tube 700, a collar 710 is screwed. On the outer side of the collar 710, a plurality of test plates 711 are evenly fixed.

[0026] Specifically, the moving vehicle 200 drives the radar on the carrier plate 400 to move towards the test plate 711, simulating the movement of the radar on the vehicle to detect obstacles. By rotating the test plates 711 made of different materials to the front side of the radar, it is convenient for the radar to detect different types of obstacles. During the movement of the moving vehicle 200, the second connecting shaft 230 drives the transmission rod 600 to reciprocally push the carrier plate 400 upwards. With the cooperation of the bump springs 330, the carrier plate 400 drives the radar to detect the test plate 711 under bumpy conditions, simulating the bumpy working conditions of the vehicle, and realizing the detection of various parameters of the test plate 711 by the radar under bumpy conditions, thereby improving the accuracy of the test results.

[0027] As Figure 1 Figure 2 shown, in this embodiment, a chute is provided on the outer side of the shaft rod 120, and a slider slidably connected to the chute is fixed on the inner side of the external thread tube 700, so that the external thread tube 700 can slide along the shaft rod 120 to different positions to adjust the distance from the radar, facilitating the adjustment of the distance between the test plate 711 and the radar for detection when the radar is stationary.

[0028] As Figure 5 shown, in this embodiment, rollers that are in rolling connection with the guide rail 110 are fixed to both ends of the first connecting shaft 220 and the second connecting shaft 230. A dual-shaft motor 240 for driving the first connecting shaft 220 at the corresponding position to rotate is fixed inside the moving vehicle 200, and the second connecting shaft 230 is in transmission connection with the first connecting shaft 220 at the corresponding position through a synchronous belt.

[0029] In this embodiment, the first connecting shaft 220 and the second connecting shaft 230 are driven through a synchronous pulley and a synchronous belt, so that the dual-shaft motor 240 can drive the first connecting shaft 220 and the second connecting shaft 230 to rotate simultaneously, realizing that while the moving vehicle 200 moves with the radar, the carrier plate 400 can make the radar shake.

[0030] As Figure 5 shown, in this embodiment, a C-shaped shaft 231 is fixed to the middle of the second connecting shaft 230. The bottom end of the transmission rod 600 is rotatably connected to the C-shaped shaft 231, and the top end of the transmission rod 600 is rotatably connected to a jacking rod 610 that is slidably inserted into the C-shaped frame 210.

[0031] In this embodiment, the transmission rod 600 can eccentrically rotate around the second connecting shaft 230 to move the jacking rod 610 up and down, and the rubber block at the top end of the jacking rod 610 can prevent the jacking rod 610 from damaging the carrier plate 400.

[0032] As Figure 4 shown, in this embodiment, the telescopic member 300 includes a first sleeve 310 fixedly connected to the C-shaped frame 210. A second sleeve 320 fixedly connected to the carrier plate 400 is slidably sleeved on the outside of the first sleeve 310, and a bump spring 330 is arranged inside the first sleeve 310 and the second sleeve 320.

[0033] In this embodiment, both ends of the bump spring 330 are fixedly connected to the carrier plate 400 and the C-shaped frame 210 respectively. When the carrier plate 400 moves upward, the bump spring 330 is stretched. After the jacking rod 610 leaves the carrier plate 400, the bump spring 330 will push up the carrier plate 400, enabling the carrier plate 400 to bump up and down. The diagonal braces on both sides of the C-shaped frame 210 enable it to be stably fixed on the moving vehicle 200.

[0034] As Figure 4 shown, in this embodiment, the fixture 410 includes a support base 411 fixedly connected to the carrier plate 400. An electric push rod 412 is fixed to the top of the support base 411. A clamping plate 413 is fixed to the output end of the electric push rod 412. The electric push rod 412 drives the clamping plate 413 to move towards the radar body 500, and the two clamping plates 413 approach each other to clamp and fix the radar body 500.

[0035] Embodiment 2

[0036] On the basis of the first embodiment, in order to enable the cable on the plug of the radar body 500 and the wire for supplying power to the mobile vehicle 200 to move synchronously during the movement of the mobile vehicle 200 .

[0037] like Figure 3 As shown, in this embodiment, a cable tie rack 420 is fixed on the top of the carrier 400. The cable tie rack 420 includes a support rod. A sleeve 421 slidably connected to the shaft 120 is fixed on the top of the support rod. Two connecting blocks 422 are fixed to the outer side of the sleeve 421.

[0038] Specifically, the data line on the radar body 500 passes through a round hole on a connecting block 422, and the wire for supplying power to the dual-axis motor 240 and the electric push rod 412 on the mobile vehicle 200 passes through a round hole on another connecting block 422. During the movement of the mobile vehicle 200, the sleeve 421 will slide synchronously along the shaft 120 with the connecting block 422, so that the data line and the wire can move synchronously along the direction of movement of the mobile vehicle 200, meeting the needs of data transmission during the movement of the radar body 500 and the needs of electricity for the mobile vehicle 200. The length of the external data line and the wire is selected according to the moving distance of the mobile vehicle 200.

[0039] In the present invention, the various parameter principles for testing the laser radar transmitting signals and receiving signals reflected from the target are prior art and will not be elaborated on.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An Internet intelligent automobile radar testing device, comprising two T-shaped pillars (100), characterized in that: Two guide rails (110) are fixed between the bottoms of two T-shaped supports (100), a shaft rod (120) is fixed between the two T-shaped supports (100), a moving vehicle (200) is rollingly connected to the two guide rails (110), a C-shaped frame (210) is fixed to the top surface of the moving vehicle (200), two telescopic members (300) are fixed to the top surface of the C-shaped frame (210), a carrier plate (400) is fixed between the tops of the two telescopic members (300), two clamps (410) for clamping a radar body (500) are fixed to the top surface of the carrier plate (400), connecting shafts one (220) are rotatably connected to both ends of the moving vehicle (200), a connecting shaft two (230) is rotatably connected to the middle of the moving vehicle (200), a transmission rod (600) for driving the carrier plate (400) to jolt up and down is drivingly connected to the middle of the connecting shaft two (230), an external threaded tube (700) is slidably clamped to the outer side of the shaft rod (120), a collar (710) is screwed to the outer side of the external threaded tube (700), and a plurality of test plates (711) are uniformly fixed to the outer side of the collar (710).

2. The Internet intelligent automobile radar testing device according to claim 1, characterized in that: A chute is formed on the outer side of the shaft rod (120), and a slider slidably connected to the chute is fixed to the inner side of the external threaded tube (700).

3. The Internet intelligent automobile radar testing device according to claim 1, characterized in that: Rollers rollingly connected to the guide rails (110) are fixed to both ends of the connecting shaft one (220) and the connecting shaft two (230), a dual-shaft motor (240) for driving the connecting shaft one (220) at the corresponding position to rotate is fixed inside the moving vehicle (200), and the connecting shaft two (230) and the connecting shaft one (220) at the corresponding position are drivingly connected by a synchronous belt.

4. The Internet intelligent automobile radar testing device according to claim 1, characterized in that: A C-shaped shaft (231) is fixed to the middle of the connecting shaft two (230), the bottom end of the transmission rod (600) is rotatably connected to the C-shaped shaft (231), and the top end of the transmission rod (600) is rotatably connected to a jacking rod (610) slidably inserted into the C-shaped frame (210).

5. The Internet intelligent automobile radar testing device according to claim 1, characterized in that: The telescopic member (300) includes a sleeve one (310) fixedly connected to the C-shaped frame (210), a sleeve two (320) fixedly connected to the carrier plate (400) is slidably sleeved on the outer side of the sleeve one (310), and a jolting spring (330) is arranged inside the sleeve one (310) and the sleeve two (320).

6. The Internet intelligent automobile radar testing device according to claim 1, characterized in that: The clamp (410) includes a support seat (411) fixedly connected to the carrier plate (400), an electric push rod (412) is fixed to the top of the support seat (411), and a clamping plate (413) is fixed to the output end of the electric push rod (412).

7. The Internet intelligent automobile radar testing device according to claim 1, characterized in that: A wire bundling frame (420) is fixed to the top of the carrier plate (400), the wire bundling frame (420) includes a support rod, a sleeve three (421) slidably sleeved on the shaft rod (120) is fixed to the top of the support rod, and two connecting blocks (422) are fixed to the outer side of the sleeve three (421).

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