An obstacle simulation device in a self-driving car test scenario

Abstract

The present invention discloses an obstacle simulation device in an autonomous driving vehicle test scene, which belongs to the technical field of vehicle obstacle simulation, and includes a test track, on which a test sample vehicle is arranged, slide rails are fixedly installed on both sides of the test track, a moving seat is slidably connected to the slide rails, the top of the moving seat is rotatably connected to a support rod, the tops of the two support rods are rotatably connected to the same top plate, and an alarm is installed on the top of the top plate. Through the rotational connection between the test plate and the moving block, and the mutual cooperation between the wedge plate and the cushion block, and the mutual cooperation between the wedge groove and the top rod, the test plate can drive the movable rod to move when impacted, and push the movable rod to different positions according to different impact strengths, so that four indicator lights can light up from bottom to top, so as to facilitate testing of different impact strengths.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile obstacle simulation, and in particular, relates to an obstacle simulation device in an autonomous driving automobile test scenario. Background Art

[0002] An unmanned vehicle is a smart car, which can also be called a wheeled mobile robot. It mainly relies on the intelligent driving instrument based on the computer system in the vehicle to achieve unmanned driving. Unmanned vehicles integrate many technologies such as automatic control, architecture, artificial intelligence, and visual computing. They are the product of the high development of computer science, pattern recognition, and intelligent control technology. They are also an important symbol to measure a country's scientific research strength and industrial level. They have broad application prospects in the fields of national defense and national economy. At present, unmanned vehicles are still in the stage of continuous research and development and testing. In order to improve the accuracy of the test, it is necessary to conduct obstacle tests in simulated real-life car driving scenes;

[0003] In existing test scenarios, obstacles are usually placed or moved directly on the test road. The test method is single, which makes it inconvenient to quantitatively observe the impact force of the test vehicle, and generally does not have the function of adjusting the test environment.

[0004] In order to solve the above problems, this application proposes an obstacle simulation device in an autonomous driving car test scenario. Summary of the invention

[0005] In response to the problems in the related art, the present invention proposes an obstacle simulation device in an autonomous driving car test scenario to overcome the above-mentioned technical problems existing in the existing related art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An obstacle simulation device in an autonomous driving vehicle test scenario comprises a test track, a test sample vehicle is arranged on the test track, slide rails are fixedly installed on both sides of the test track, a moving seat is slidably connected to the slide rails, a support rod is rotatably connected to the top of the moving seat, the top ends of two support rods are rotatably connected to the same top plate, and an alarm is installed on the top of the top plate;

[0008] A test plate is slidably mounted on the bottom of the top plate, a sliding groove is provided at the bottom of the top plate, a screw rod is rotatably connected to the inner wall of the sliding groove, a moving block is threadedly connected to the screw rod, the test plate is rotatably mounted on the bottom of the moving block, a second motor is fixedly mounted on one side of the top plate, an output shaft of the second motor is fixedly connected to the screw rod, and a mounting plate is fixedly mounted on one side of the moving block;

[0009] The position adjustment mechanism comprises a first motor, the first motor is fixedly mounted on the top plate, two fixing boxes are fixedly mounted on the top of the top plate, the two fixing boxes are rotatably connected with the same active rod, the active rod is fixedly connected to the output shaft of the first motor, and the active rod is drivingly connected to the two support rods;

[0010] The impact warning mechanism comprises a mounting box, the mounting box is fixedly mounted on the bottom of the mounting plate, a function box is fixedly mounted on one side of the mounting plate, and four indicator lights are mounted on one side of the function box;

[0011] The rain distribution mechanism is installed on the test track and cooperates with the test sample vehicle.

[0012] Preferably, the position adjustment mechanism further includes two worms, the two worms are fixedly mounted on the active rod, a worm wheel is fixedly mounted on the top end of the support rod, and the worms and the worm wheel are meshed with each other.

[0013] The rotating active rod can drive the supporting rod to rotate through the mutual meshing of the worm and the worm wheel.

[0014] Preferably, a driving gear is fixedly mounted on the bottom end of the support rod, a rack is fixedly mounted on the top end of the slide rail, the driving gear and the rack are meshed with each other, a placement cavity is opened on the movable seat, and the driving gear is located in the placement cavity.

[0015] The rotating support rod can drive the moving seat and the support rod to move through the mutual engagement of the active gear and the rack, and then drive the top plate and the test plate to move, so that test vehicles at different distances can be tested.

[0016] Preferably, the impact warning mechanism also includes a movable rod, which is slidably mounted on the mounting box, a pad is fixedly mounted on the bottom end of the movable rod, a pressure sensor is installed between the pad and the movable rod, and a wedge plate is fixedly mounted on one side of the test plate, and the wedge plate cooperates with the pad.

[0017] The angle-changing test plate can push the pad to move through the wedge plate, and the pad pushes the movable rod to move. At the same time, the setting of the pressure sensor can detect the force generated during the impact, and the pressure sensor is remotely connected to the monitoring platform, which can facilitate remote monitoring.

[0018] Preferably, four push rods are slidably connected to one side of the function box, a metal block is fixedly installed at one end of the push rod, and four contact blocks are installed on the inner wall of one side of the function box, and the contact blocks are connected to corresponding indicator lights.

[0019] The sliding top rod drives the metal block to move. When the metal block contacts the contact block, the power source connected to the metal block is connected to the contact block, thereby connecting the power source to the corresponding indicator light, thereby facilitating observation.

[0020] Preferably, a wedge-shaped groove is provided on one side of the movable rod, the wedge-shaped groove cooperates with the push rod, a stopper is provided on the push rod, a return spring is fixedly installed on one side of the stopper, and one end of the return spring is fixedly connected to the function box.

[0021] The movable rod cooperates with the ejector rod through the wedge-shaped groove, thereby driving the ejector rod to move, and compresses the reset spring through the block. When the movable rod is reset, the reset spring can drive the ejector rod to reset through the block, thereby facilitating the next inspection.

[0022] Preferably, a positioning plate is fixedly mounted on the bottom of the installation box, a movable plate is fixedly mounted on the movable rod, and a same buffer spring is mounted between the movable plate and the positioning plate.

[0023] The movable rod drives the movable plate to move, and the movable plate compresses the buffer spring. When the movable rod loses its thrust, the buffer spring can reset the movable rod through the movable plate.

[0024] Preferably, the rain distribution mechanism includes a water tank, which is installed on one side of the test track. Two symmetrically arranged conduits are installed on the top of the water tank. Four symmetrically arranged positioning seats are fixedly installed on the top of the test track. The same water spray box is rotatably connected between two of the positioning seats on the same side. Multiple nozzles are installed on the water spray box, and the water spray box is connected to the corresponding conduits.

[0025] The water in the water tank can be discharged through a conduit and sprayed out through multiple nozzles on the water spray box, thereby acting on the test track and conducting rainy day tests on the test vehicle.

[0026] Preferably, two symmetrically arranged collecting grooves are provided on the top of the test track, and an opening is provided on the top of the water tank, which cooperates with the collecting grooves, and the same bidirectional screw is rotatably connected between the corresponding two positioning seats, and two symmetrically arranged sliding seats are threadedly connected on the bidirectional screw, a gear rod is fixedly installed on one side of the sliding seat, and a transmission gear is fixedly installed on one side of the water spray box, and the gear rod is meshed with the corresponding transmission gear.

[0027] The setting of the collection trough can facilitate the collection of rainwater on the test track and introduce it into the water tank through the opening, so as to facilitate recycling. At the same time, the rotating bidirectional screw can be connected with the two slide seats through threads, so as to drive the two gear rods to move in opposite directions, and then through the mutual engagement of the gear rod and the transmission gear, it can drive the water spray box to change its angle, so as to adjust the water spray angle according to different rainfall, so as to adapt to the best water spray effect.

[0028] Preferably, the bottom of the water spray box is slidably connected to an adjustment plate, the top of the water spray box is rotatably connected to a threaded rod, and the threaded rod is threadedly connected to the adjustment plate.

[0029] The rotating threaded rod is connected to the water spray box through rotation and is connected to the thread of the adjustment plate, so that the position of the adjustment plate in the water spray box can be adjusted, and then the water spray volume can be adjusted, which is suitable for testing the test effect of the test sample vehicle under different rainfall amounts.

[0030] In summary, the technical effects and advantages of the present invention are as follows:

[0031] Through the mutual meshing of the worm and the active gear and the rack, the rotating active rod can drive the support rod and the top plate to move, thereby adjusting the test at different positions on the test track to adapt to the different speeds of the test vehicle.

[0032] Through the rotational connection between the test plate and the movable block, the mutual cooperation between the wedge plate and the pad, and the mutual cooperation between the wedge groove and the top rod, the test plate can drive the movable rod to move when it is impacted, and push the movable rod to different positions according to different impact intensities, so that the four indicator lights can light up from bottom to top, thereby facilitating the testing of different impact intensities.

[0033] By setting up a water tank and multiple nozzles, rainwater can be simulated on the test track, which makes it easy to adapt to testing under different rainfall amounts. At the same time, rainwater can be returned through the collection trough and openings, which is convenient for people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a side view structural schematic diagram of the present invention;

[0036] Figure 3 This is a schematic diagram of the test track and water tank structure of the present invention;

[0037] Figure 4 This is a schematic diagram of the structure of the impact warning mechanism of the present invention;

[0038] Figure 5It is a schematic diagram of the internal structure of the installation box and the functional box of the present invention;

[0039] Figure 6 It is a schematic diagram of the structure of the water spray box of the present invention;

[0040] Figure 7 For the present invention Figure 2 Schematic diagram of the structure of A;

[0041] Figure 8 For the present invention Figure 2 Schematic diagram of the structure of part B.

[0042] In the figure:

[0043] 1. Test track; 2. Test sample car; 3. Moving seat; 4. Support rod; 5. Top plate; 6. Position adjustment mechanism; 61. First motor; 62. Active rod; 63. Worm; 64. Worm wheel; 65. Active gear; 66. Rack; 67. Fixed box; 7. Impact warning mechanism; 71. Installation box; 72. Movable rod; 73. Wedge groove; 74. Function box; 75. Top rod; 76. Block; 77. Reset spring; 781. Indicator light; 782. Metal block; 783. Contact block; 8. Rain distribution mechanism; 81. Spray Water box; 82, water tank; 83, conduit; 84, collecting tank; 85, opening; 86, positioning seat; 87, bidirectional screw; 881, gear rod; 882, transmission gear; 883, slide seat; 891, threaded rod; 892, adjustment plate; 9, slide rail; 10, test plate; 11, mounting plate; 12, cushion block; 13, pressure sensor; 14, movable plate; 15, positioning plate; 16, buffer spring; 17, sliding groove; 18, screw rod; 19, moving block; 20, second motor; 21, wedge plate; 22, alarm. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] Reference Figure 1-8 , an obstacle simulation device in an autonomous driving vehicle test scenario, comprising a test track 1, a test sample vehicle 2 is arranged on the test track 1, slide rails 9 are fixedly installed on both sides of the test track 1, a moving seat 3 is slidably connected to the slide rails 9, a support rod 4 is rotatably connected to the top of the moving seat 3, the top ends of the two support rods 4 are rotatably connected to the same top plate 5, an alarm 22 is installed on the top of the top plate 5, and the setting of the alarm 22 can facilitate the alarm of the pressure signal received by the pressure sensor 13;

[0046] The test plate 10 is slidably mounted on the bottom of the top plate 5. A sliding groove 17 is provided at the bottom of the top plate 5. A screw rod 18 is rotatably connected to the inner wall of the sliding groove 17. A moving block 19 is threadedly connected to the screw rod 18. The test plate 10 is rotatably mounted on the bottom of the moving block 19. A second motor 20 is fixedly mounted on one side of the top plate 5. The output shaft of the second motor 20 is fixedly connected to the screw rod 18. A mounting plate 11 is fixedly mounted on one side of the moving block 19.

[0047] The position adjustment mechanism 6 includes a first motor 61, which is fixedly mounted on the top plate 5. Two fixing boxes 67 are fixedly mounted on the top of the top plate 5. The two fixing boxes 67 are rotatably connected to the same active rod 62. The active rod 62 is fixedly connected to the output shaft of the first motor 61, and the active rod 62 is drivingly connected to the two support rods 4.

[0048] The impact warning mechanism 7 includes a mounting box 71, which is fixedly mounted on the bottom of the mounting plate 11, a function box 74 is fixedly mounted on one side of the mounting plate 11, and four indicator lights 781 are mounted on one side of the function box 74;

[0049] The rain distribution mechanism 8 is installed on the test track 1 and cooperates with the test sample vehicle 2 .

[0050] Reference Figure 2 and Figure 6 The position adjustment mechanism 6 also includes two worms 63, which are fixedly mounted on the active rod 62. A worm wheel 64 is fixedly mounted on the top of the support rod 4. The worm 63 and the worm wheel 64 are meshed with each other. The rotating active rod 62 can drive the support rod 4 to rotate through the mutual meshing of the worm 63 and the worm wheel 64.

[0051] Reference Figure 7 A driving gear 65 is fixedly installed at the bottom end of the support rod 4, and a rack 66 is fixedly installed at the top end of the slide rail 9. The driving gear 65 and the rack 66 are meshed with each other. A placement cavity is opened on the moving seat 3, and the driving gear 65 is located in the placement cavity. The rotating support rod 4 can drive the moving seat 3 and the support rod 4 to move their positions through the mutual meshing of the driving gear 65 and the rack 66, and then can drive the top plate 5 and the test plate 10 to move their positions, so that the test sample vehicles 2 at different distances can be tested.

[0052] Reference Figure 5The impact warning mechanism 7 also includes a movable rod 72, which is slidably installed on the installation box 71. A cushion block 12 is fixedly installed on the bottom end of the movable rod 72, and a pressure sensor 13 is installed between the cushion block 12 and the movable rod 72. A wedge plate 21 is fixedly installed on one side of the test board 10, and the wedge plate 21 and the cushion block 12 cooperate with each other. The test board 10 with changing angle can push the cushion block 12 to move through the wedge plate 21, and the cushion block 12 pushes the movable rod 72 to move. At the same time, the setting of the pressure sensor 13 can detect the force generated during the impact, and the pressure sensor 13 is remotely connected to a monitoring platform, so as to facilitate remote monitoring.

[0053] Reference Figure 5 One side of the function box 74 is slidably connected with four push rods 75, one end of the push rod 75 is fixedly installed with a metal block 782, and four contact blocks 783 are installed on the inner wall of one side of the function box 74. The contact blocks 783 are connected to the corresponding indicator lights 781. The sliding push rod 75 drives the metal block 782 to move. When the metal block 782 contacts the contact block 783, the power supply connected to the metal block 782 is connected to the contact block 783, so that the power supply can be connected to the corresponding indicator light 781, which makes it easy to observe.

[0054] Reference Figure 5 A wedge-shaped groove 73 is provided on one side of the movable rod 72, and the wedge-shaped groove 73 cooperates with the push rod 75. A stop block 76 is provided on the push rod 75, and a return spring 77 is fixedly installed on one side of the stop block 76. One end of the return spring 77 is fixedly connected to the function box 74. The movable movable rod 72 cooperates with the push rod 75 through the wedge-shaped groove 73, thereby driving the push rod 75 to move, and pushing the return spring 77 to be compressed through the stop block 76. When the movable rod 72 is reset, the return spring 77 can drive the push rod 75 to reset through the stop block 76, which is convenient for the next detection.

[0055] Reference Figure 5 A positioning plate 15 is fixedly installed at the bottom of the mounting box 71, and a movable plate 14 is fixedly installed on the movable rod 72. The same buffer spring 16 is installed between the movable plate 14 and the positioning plate 15. The movable movable rod 72 drives the movable plate 14 to move, and the movable plate 14 compresses the buffer spring 16. When the movable rod 72 loses its thrust, the buffer spring 16 can reset the movable rod 72 through the movable plate 14.

[0056] Reference Figure 2The rain distribution mechanism 8 includes a water tank 82, which is installed on one side of the test track 1. Two symmetrically arranged conduits 83 are installed on the top of the water tank 82. Four symmetrically arranged positioning seats 86 are fixedly installed on the top of the test track 1. The same water spray box 81 is rotatably connected between the two positioning seats 86 on the same side. A plurality of nozzles are installed on the water spray box 81. The water spray box 81 is connected to the corresponding conduits 83. The water in the water tank 82 can be discharged through the conduits 83 and sprayed out through the plurality of nozzles on the water spray box 81, thereby acting on the test track 1 and performing a rainy day test on the test sample vehicle 2.

[0057] Reference Figure 2 Two symmetrically arranged collecting grooves 84 are provided at the top of the test track 1, and an opening 85 is provided at the top of the water tank 82. The opening 85 cooperates with the collecting groove 84, and the same bidirectional screw 87 is rotatably connected between the corresponding two positioning seats 86. Two symmetrically arranged sliding seats 883 are threadedly connected on the bidirectional screw 87. A gear rod 881 is fixedly installed on one side of the sliding seat 883, and a transmission gear 882 is fixedly installed on one side of the water spray box 81. The gear rod 881 and the corresponding transmission gear 882 are meshed with each other. The setting of the collecting groove 84 can facilitate the collection of rainwater on the test track 1 and introduce it into the water tank 82 through the opening 85, so as to facilitate recycling. At the same time, the rotating bidirectional screw 87 can be threadedly connected with the two sliding seats 883, so as to drive the two gear rods 881 to move in the opposite direction, and then through the mutual meshing with the gear rod 881 and the transmission gear 882, it can drive the water spray box 81 to change its angle, so as to adjust the water spraying angle according to different rainfall, so as to adapt to the best water spraying effect.

[0058] Reference Figure 6 The bottom of the water spray box 81 is slidably connected with an adjustment plate 892, and the top of the water spray box 81 is rotatably connected with a threaded rod 891, and the threaded rod 891 is threadedly connected to the adjustment plate 892. The rotating threaded rod 891 is rotatably connected to the water spray box 81 and threadedly connected to the adjustment plate 892, so that the position of the adjustment plate 892 in the water spray box 81 can be adjusted, and then the water spray amount can be adjusted, which is suitable for the test effect of the test sample vehicle 2 under different rainfall amounts.

[0059] Working principle: During operation, the test vehicle 2 is driven and tested on the test track 1, and the switch of the second motor 20 is started at the same time. The output shaft of the second motor 20 drives the screw 18 to rotate. The screw 18 is connected with the moving block 19 through a thread, thereby driving the moving block 19 and the test board 10 to move, so that the test board 10 can move to the middle position of the test track 1, and perform an obstacle simulation test with the test vehicle 2. At the same time, the water in the water tank 82 can be discharged through the conduit 83 and sprayed through multiple nozzles on the water spray box 81, so as to act on the test track 1 and perform a rainy day test on the test vehicle 2. The setting of the collection tank 84 can facilitate the collection of rainwater on the test track 1 and introduce it into the water tank 82 through the opening 85. And it is convenient for recycling. The rotating bidirectional screw rod 87 can be connected with the two slide seats 883 by threads, so as to drive the two gear rods 881 to move in opposite directions, and then the gear rod 881 and the transmission gear 882 are meshed with each other, so as to drive the water spray box 81 to change its angle, so as to adjust the water spray angle according to different rainfalls, so as to adapt to the best water spray effect. When it is necessary to adjust different functional rainfall states, the threaded rod 891 is rotated. The rotating threaded rod 891 is connected with the water spray box 81 by rotation and the adjusting plate 892 by threads, so as to adjust the position of the adjusting plate 892 in the water spray box 81, and then the water spray amount can be adjusted. It is suitable for the test effect of the test sample car 2 under different rainfalls. When the test sample car 2 is connected with the test plate 1 0 impact, the impact force pushes the test plate 10 to change its angle, the test plate 10 pushes the cushion block 12 to move through the wedge plate 21, the cushion block 12 pushes the movable rod 72 to move, and the pressure sensor 13 is set at the same time, it can detect the force generated during the impact, and the pressure sensor 13 is remotely connected to the monitoring platform, so that it can facilitate remote monitoring, the movable rod 72 moves through the wedge groove 73 and the push rod 75 to cooperate with each other, so as to drive the push rod 75 to move, and push the reset spring 77 to compress through the stopper 76, when the movable rod 72 is reset, the reset spring 77 can drive the push rod 75 to reset through the stopper 76, so as to facilitate the next detection, the sliding push rod 75 drives the metal block 782 to move, when the metal block 7 When the metal block 782 contacts the contact block 783, the power supply connected to the metal block 782 is connected to the contact block 783, so that the corresponding indicator light 781 can be connected to the power supply, which makes it easy to observe. The moving active rod 72 drives the active plate 14 to move, and the active plate 14 compresses the buffer spring 16. When the active rod 72 loses its thrust, the buffer spring 16 can reset the active rod 72 through the active plate 14. When the test sample vehicle 2 needs to reach a certain speed, the first motor 61 switch is started, and the output shaft of the first motor 61 drives the active rod 62 to rotate. The rotating active rod 62 is meshed with the worm 63 and the worm wheel 64, thereby driving the support rod 4 to rotate. The rotating support rod 4 is meshed with the driving gear 65 and the rack 66.This can drive the moving seat 3 and the support rod 4 to move, and then drive the top plate 5 and the test plate 10 to move, so that the test sample car 2 at different distances can be tested, and the test sample car 2 can have a larger acceleration space.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An obstacle simulation device in an autonomous driving vehicle test scenario, comprising a test track (1), on which a test vehicle (2) is arranged, characterized in that: Slide rails (9) are fixedly installed on both sides of the test track (1), a moving seat (3) is slidably connected to the slide rails (9), the top of the moving seat (3) is rotatably connected to a support rod (4), the top ends of the two support rods (4) are rotatably connected to the same top plate (5), and an alarm (22) is installed on the top of the top plate (5); A test plate (10) is slidably mounted on the bottom of the top plate (5); a sliding groove (17) is provided on the bottom of the top plate (5); a screw rod (18) is rotatably connected to the inner wall of the sliding groove (17); a moving block (19) is threadedly connected to the screw rod (18); the test plate (10) is rotatably mounted on the bottom of the moving block (19); a second motor (20) is fixedly mounted on one side of the top plate (5); an output shaft of the second motor (20) is fixedly connected to the screw rod (18); and a mounting plate (11) is fixedly mounted on one side of the moving block (19); The position adjustment mechanism (6) comprises a first motor (61), the first motor (61) being fixedly mounted on the top plate (5), two fixing boxes (67) being fixedly mounted on the top of the top plate (5), the two fixing boxes (67) being rotatably connected to a same active rod (62), the active rod (62) being fixedly connected to an output shaft of the first motor (61), and the active rod (62) being drivingly connected to two support rods (4); The impact warning mechanism (7) comprises a mounting box (71), the mounting box (71) being fixedly mounted on the bottom of the mounting plate (11), a function box (74) being fixedly mounted on one side of the mounting plate (11), and four indicator lights (781) being mounted on one side of the function box (74); the impact warning mechanism (7) further comprises a movable rod (72), the movable rod (72) being slidably mounted on the mounting box (71), a cushion block (12) being fixedly mounted on the bottom end of the movable rod (72), a pressure sensor (13) being mounted between the cushion block (12) and the movable rod (72); and a wedge plate (21) being fixedly mounted on one side of the test plate (10), the wedge plate (21) and the cushion block (12) being engaged with each other; The rain distribution mechanism (8) is installed on the test track (1) and cooperates with the test sample vehicle (2).

2. The obstacle simulation device in the test scene of an autonomous driving vehicle according to claim 1, characterized in that: The position adjustment mechanism (6) further comprises two worms (63), the two worms (63) being fixedly mounted on the active rod (62), a worm wheel (64) being fixedly mounted on the top end of the support rod (4), and the worms (63) and the worm wheel (64) being meshed with each other.

3. The obstacle simulation device in the test scene of an autonomous driving vehicle according to claim 2, characterized in that: A driving gear (65) is fixedly mounted on the bottom end of the support rod (4), a rack (66) is fixedly mounted on the top end of the slide rail (9), the driving gear (65) and the rack (66) are meshed with each other, and a placement cavity is provided on the movable seat (3), and the driving gear (65) is located in the placement cavity.

4. The obstacle simulation device in the test scene of an autonomous driving vehicle according to claim 1, characterized in that: Four push rods (75) are slidably connected to one side of the function box (74), a metal block (782) is fixedly mounted on one end of the push rod (75), and four contact blocks (783) are mounted on an inner wall of one side of the function box (74), the contact blocks (783) being connected to corresponding indicator lights (781).

5. The obstacle simulation device in the test scene of an autonomous driving vehicle according to claim 4, characterized in that: A wedge-shaped groove (73) is provided on one side of the movable rod (72), the wedge-shaped groove (73) cooperates with the push rod (75), a stopper (76) is provided on the push rod (75), a return spring (77) is fixedly mounted on one side of the stopper (76), and one end of the return spring (77) is fixedly connected to the function box (74).

6. The obstacle simulation device in the test scene of an autonomous driving vehicle according to claim 5, characterized in that: A positioning plate (15) is fixedly mounted on the bottom of the installation box (71), a movable plate (14) is fixedly mounted on the movable rod (72), and a common buffer spring (16) is mounted between the movable plate (14) and the positioning plate (15).

7. The obstacle simulation device in the test scene of an autonomous driving vehicle according to claim 1, characterized in that: The rain distribution mechanism (8) comprises a water tank (82), the water tank (82) being mounted on one side of the test track (1), two symmetrically arranged conduits (83) being mounted on the top of the water tank (82), four symmetrically arranged positioning seats (86) being fixedly mounted on the top of the test track (1), a same water spray box (81) being rotatably connected between two positioning seats (86) on the same side, a plurality of spray heads being mounted on the water spray box (81), and the water spray box (81) being connected to corresponding conduits (83).

8. The obstacle simulation device in the test scene of an autonomous driving vehicle according to claim 7, characterized in that: The top of the test track (1) is provided with two symmetrically arranged collecting grooves (84), the top of the water tank (82) is provided with an opening (85), the opening (85) and the collecting groove (84) cooperate with each other, a same bidirectional screw (87) is rotatably connected between the two corresponding positioning seats (86), two symmetrically arranged sliding seats (883) are threadedly connected on the bidirectional screw (87), a gear rod (881) is fixedly installed on one side of the sliding seat (883), a transmission gear (882) is fixedly installed on one side of the water spray box (81), and the gear rod (881) and the corresponding transmission gear (882) are meshed with each other.

9. The obstacle simulation device in the test scene of an autonomous driving vehicle according to claim 8, characterized in that: The bottom of the water spray box (81) is slidably connected to an adjustment plate (892), and the top of the water spray box (81) is rotatably connected to a threaded rod (891), which is threadedly connected to the adjustment plate (892).

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