Unmanned vehicle simulation device
By designing an unmanned vehicle simulation device to simulate traffic lights, pedestrians and rainy weather conditions, the safety hazards existing in existing testing technology have been solved, and safe and effective testing of unmanned vehicles has been achieved.
Patent Information
- Application Number
- CN202420912516.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The testing technology of existing autonomous vehicles has safety risks, especially when simulating actual road conditions.
Design an unmanned vehicle simulation device, which includes a vehicle power detection mechanism and a road condition simulation mechanism. It simulates traffic lights on the road through components such as a vehicle test bench, passive rollers, test rollers, simulated traffic lights, simulated pedestrians, and rain simulation devices. , pedestrians and rainy weather conditions, and record the acceleration and braking conditions of the vehicle.
By simulating various road conditions, the safety of testing unmanned vehicles is improved, and the vehicle's reaction and driving behavior in different environments can be effectively monitored.
Smart Images
Figure CN222379347U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of unmanned driving simulation, in particular to an unmanned driving vehicle simulation device. Background Art
[0002] Autonomous driving refers to the technology that enables the car to perceive the environment, plan its path and autonomously control the vehicle.
[0003] Before unmanned vehicles are put on the road, in order to improve safety, the performance of the unmanned driving needs to be tested to ensure that the unmanned driving system can cope well with road conditions. Existing testing technologies are mostly tested on actual roads, and this testing method still has safety risks.
[0004] In order to further improve the safety of the test, an unmanned vehicle simulation device is provided to simulate road conditions in a fixed environment. Utility Model Content
[0005] The purpose of the utility model is to provide an unmanned vehicle simulation device to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an unmanned vehicle simulation device, comprising a vehicle power detection mechanism and a road condition simulation mechanism, a line bridge is arranged between the vehicle power detection mechanism and the road condition simulation mechanism, and a line is arranged inside the line bridge to connect the vehicle power detection mechanism and the road condition simulation mechanism components;
[0007] The vehicle power detection mechanism comprises a vehicle test bench, wherein two connection grooves are provided on the top of the vehicle test bench, and a passive roller and a test roller are installed inside the two connection grooves respectively, and a central control box is installed on the side of the vehicle test bench, and the central control box is connected to the test roller;
[0008] The road condition simulation mechanism includes a supporting base, the top of the supporting base is fixedly connected to a suspension frame, a simulated traffic light is suspended on the suspension frame, a sidewalk simulation board is fixedly connected to the right side of the supporting base, a limited slide groove is provided above the sidewalk simulation board, and a movable simulated pedestrian is installed inside the limited slide groove.
[0009] Preferably, a slope is provided on the right side of the vehicle test bench, and anti-slip texture is provided on the top of the vehicle test bench.
[0010] Preferably, a rotation speed sensor is provided at the end of the test roller, the rotation speed sensor is connected to a central control box, and a display is provided on the central control box.
[0011] Preferably, a movable roller is installed at the bottom of the simulated pedestrian and is driven by a servo motor, limit sliders are provided on both sides of the simulated pedestrian, the limit sliders are slidably connected to the inside of the limit slide groove, and a signal reflector is provided on the surface of the simulated pedestrian.
[0012] Preferably, a rainwater simulation device is fixedly connected to the top of the simulated traffic light, and the rainwater simulation device sprays water in the direction of the connecting groove.
[0013] Preferably, the rainwater simulation device includes a water diversion pipe extending toward the vehicle test bench, the end of the water diversion pipe is fixedly connected to a sprinkler head, a water supply pipe is provided on the right side of the water diversion pipe, and the water supply pipe is connected to a water pump.
[0014] Preferably, the water diversion pipes are in multiple groups, and the multiple groups of water diversion pipes are all bent downward.
[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:
[0016] First, the utility model sets up a vehicle test bench, and sets passive rollers and test rollers on the vehicle test bench to limit the front and rear wheels of the car and monitor the rotation speed of the wheels. At the same time, simulated traffic lights and simulated pedestrians are set to simulate traffic lights and pedestrians on the road, so as to simulate and monitor the vehicle reaction of unmanned vehicles when encountering traffic signals and pedestrians, and record the acceleration and braking conditions of the vehicle through the central control box, thereby achieving the effect of improving safety.
[0017] Secondly, the utility model installs a water pipe on the top of the simulated traffic light, and installs a sprinkler head and a water supply pipe at both ends of the water pipe respectively, supplies water to the water pipe through the water supply pipe, and sprays water to the vehicle through the sprinkler head to simulate rainy weather, so as to test whether the vehicle will decelerate according to the situation under rainy conditions and emergency brake in sudden situations, thereby achieving the effect of simulating driving in rainy days. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 This is the right side view of the structure of the utility model;
[0020] Figure 3 This is a front view of the structure of the utility model;
[0021] Figure 4 The figure is a schematic diagram of the structure of the utility model simulating pedestrians.
[0022] Among them: 1. Vehicle power detection mechanism; 101. Vehicle test bench; 102. Connection groove; 103. Passive roller; 104. Test roller; 105. Central control box; 2. Road condition simulation mechanism; 201. Support base; 202. Suspension frame; 203. Simulated traffic light; 204. Pedestrian simulation board; 205. Limit slide; 206. Simulated pedestrian; 2061. Moving roller; 2062. Limit slide; 2063. Signal reflection plate; 3. Rainwater simulation device; 301. Water pipe; 302. Sprinkler head; 303. Water supply pipe; 4. Line bridge. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-4 , an unmanned vehicle simulation device, comprising a vehicle power detection mechanism 1, a road condition simulation mechanism 2, a line bridge 4 is arranged between the vehicle power detection mechanism 1 and the road condition simulation mechanism 2, and a line is arranged inside the line bridge 4 to connect the vehicle power detection mechanism 1 and the road condition simulation mechanism 2;
[0025] The vehicle power detection mechanism 1 includes a vehicle test bench 101. Two connecting grooves 102 are provided on the top of the vehicle test bench 101. A passive roller 103 and a test roller 104 are installed inside the two connecting grooves 102 respectively. The positions of the passive roller 103 and the test roller 104 are determined according to whether the vehicle is front-wheel drive or rear-wheel drive, so that the vehicle rotates on the passive roller 103 and the test roller 104 without moving forward. A central control box 105 is installed on the side of the vehicle test bench 101, and the central control box 105 is connected to the test roller 104.
[0026] The road condition simulation mechanism 2 includes a support base 201, the top of the support base 201 is fixedly connected to a suspension frame 202, a simulated traffic light 203 is suspended on the suspension frame 202, and a sidewalk simulation board 204 is fixedly connected to the right side of the support base 201. A limited slide groove 205 is provided above the sidewalk simulation board 204, and a movable simulated pedestrian 206 is installed inside the limited slide groove 205.
[0027] Through the above technical solution, a vehicle test bench 101 is set up, and a passive roller 103 and a test roller 104 are set on the vehicle test bench 101 to limit the front and rear wheels of the car and monitor the rotation speed of the wheels. At the same time, a simulated traffic light 203 and a simulated pedestrian 206 are set to simulate the traffic lights and pedestrians on the road, so as to simulate and monitor the vehicle reaction of the unmanned vehicle when encountering traffic signals and pedestrians, and record the acceleration and braking conditions of the vehicle through the central control box 105, thereby achieving the effect of improving safety.
[0028] Specifically, a slope is provided on the right side of the vehicle test bench 101 , and anti-slip textures are provided on the top of the vehicle test bench 101 .
[0029] Through the above technical solution, a slope is set on one side of the vehicle test bench 101 to facilitate the vehicle to drive to the top of the vehicle test bench 101, and the anti-skid pattern is used to improve the driving friction of the vehicle, so that the vehicle can better drive to the designated position.
[0030] Specifically, a rotation speed sensor is disposed at the end of the test roller 104 , the rotation speed sensor is connected to the central control box 105 , and a display is disposed on the central control box 105 .
[0031] Through the above technical solution, the purpose of setting the rotation speed sensor on the test roller 104 is to detect the driving speed of the vehicle, so as to determine when the vehicle is decelerated and braked according to the driving speed, thereby achieving the purpose of simulation.
[0032] Specifically, a moving roller 2061 is installed at the bottom of the simulated pedestrian 206 and is driven by a servo motor. Limit sliders 2062 are set on both sides of the simulated pedestrian 206. The limit sliders 2062 are slidably connected to the inside of the limit slide groove 205. A signal reflection plate 2063 is set on the surface of the simulated pedestrian 206.
[0033] Through the above technical solution, a servo motor is used to electrically move the roller 2061 to rotate, so that the simulated pedestrian 206 can move forward and backward according to the predetermined settings to simulate the scene of pedestrians crossing the road, such as passing at a constant speed, suddenly accelerating through, and hesitantly passing through the intersection, so as to test the braking response of the vehicle under different conditions. The set limit slider 2062 is used to improve the stability of the simulated pedestrian 206 during movement, and the set signal reflection plate 2063 is used to reflect the radar signal of the unmanned vehicle to improve the accuracy of the simulation. The signal reflection plate 2063 is covered with simulated leather or clothing textiles.
[0034] Specifically, a rainwater simulation device 3 is fixedly connected to the top of the simulated traffic light 203 , and the rainwater simulation device 3 sprays water toward the connection groove 102 .
[0035] Through the above technical solution, the purpose of setting the rain simulation device 3 is to simulate rain, so as to test the operating status of the unmanned vehicle in rainy days.
[0036] Specifically, the rainwater simulation device 3 includes a water pipe 301 extending toward the vehicle test bench 101 , the end of the water pipe 301 is fixedly connected to a sprinkler head 302 , a water supply pipe 303 is provided on the right side of the water pipe 301 , and the water supply pipe 303 is connected to a water pump.
[0037] Through the above technical solution, a water pipe 301 is installed on the top of the simulated traffic light 203, and a sprinkler head 302 and a water supply pipe 303 are installed at both ends of the water pipe 301 respectively. The water supply pipe 303 supplies water to the water pipe 301, and the water flows through the sprinkler head 302 to spray toward the vehicle to simulate rainy weather, so as to test whether the vehicle will decelerate according to the situation under rainy conditions and emergency brake in sudden situations, thereby achieving the effect of simulating driving in rainy days.
[0038] Specifically, there are multiple groups of water diversion pipes 301, and the multiple groups of water diversion pipes 301 are all bent downward.
[0039] Through the above technical solution, the purpose of setting up multiple groups of water pipes 301 is to increase the water spray volume, and electromagnetic valves are individually installed on the multiple groups of water pipes 301. By controlling different solenoid valves to change the water spray volume of different sprinkler heads 302, different rainfall amounts can be achieved, and the water pipes 301 are bent downward so that water can be sprayed directly onto unmanned vehicles.
[0040] When in use, a vehicle test bench 101 is set up, and a passive roller 103 and a test roller 104 are set on the vehicle test bench 101 to limit the front and rear wheels of the car and monitor the rotation speed of the wheels. Simultaneously, a simulated traffic light 203 and a simulated pedestrian 206 are set up to simulate traffic lights and pedestrians on the road, so as to simulate and monitor the vehicle reaction of the unmanned vehicle when encountering traffic signals and pedestrians, and the acceleration and braking conditions of the vehicle are recorded through the central control box 105, thereby achieving the effect of improving safety;
[0041] By installing a water pipe 301 on the top of the simulated traffic light 203, and installing a sprinkler head 302 and a water supply pipe 303 at both ends of the water pipe 301, water is supplied to the water pipe 301 through the water supply pipe 303, and water flows through the sprinkler head 302 to spray toward the vehicle to simulate rainy weather, so as to test whether the vehicle will decelerate according to the situation under rainy conditions and emergency brake in sudden situations, thereby achieving the effect of simulating driving in rainy weather.
[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An unmanned vehicle simulation device, characterized in that: The invention comprises a vehicle power detection mechanism (1) and a road condition simulation mechanism (2), wherein a line bridge (4) is arranged between the vehicle power detection mechanism (1) and the road condition simulation mechanism (2), and lines are arranged inside the line bridge (4) to connect the vehicle power detection mechanism (1) and the road condition simulation mechanism (2); The vehicle power detection mechanism (1) comprises a vehicle test bench (101), the top of the vehicle test bench (101) is provided with two connection grooves (102), a passive roller (103) and a test roller (104) are respectively installed inside the two connection grooves (102), a central control box (105) is installed on the side of the vehicle test bench (101), and the central control box (105) is connected to the test roller (104); The road condition simulation mechanism (2) comprises a support base (201), the top of the support base (201) is fixedly connected to a suspension frame (202), a simulated traffic light (203) is suspended on the suspension frame (202), the right side of the support base (201) is fixedly connected to a pedestrian simulation board (204), a limited position slide groove (205) is provided above the pedestrian simulation board (204), and a movable simulated pedestrian (206) is installed inside the limited position slide groove (205).
2. The unmanned vehicle simulation device according to claim 1, characterized in that: A slope is arranged on the right side of the vehicle test bench (101), and anti-slip patterns are arranged on the top of the vehicle test bench (101).
3. The unmanned vehicle simulation device according to claim 1, characterized in that: A rotation speed sensor is provided at the end of the test roller (104), the rotation speed sensor is connected to a central control box (105), and a display is provided on the central control box (105).
4. The unmanned vehicle simulation device according to claim 1, characterized in that: A movable roller (2061) is installed at the bottom of the simulated pedestrian (206) and is driven by a servo motor. Limiting sliders (2062) are arranged on both sides of the simulated pedestrian (206). The limiting sliders (2062) are slidably connected to the inside of the limiting slide groove (205). A signal reflecting plate (2063) is arranged on the surface of the simulated pedestrian (206).
5. The unmanned vehicle simulation device according to claim 1, characterized in that: A rainwater simulation device (3) is fixedly connected to the top of the simulated traffic light (203), and the rainwater simulation device (3) sprays water in the direction of the connection groove (102).
6. The unmanned vehicle simulation device according to claim 5, characterized in that: The rainwater simulation device (3) comprises a water diversion pipe (301) extending in the direction of the vehicle test bench (101), the end of the water diversion pipe (301) is fixedly connected to a sprinkler head (302), a water supply pipe (303) is arranged on the right side of the water diversion pipe (301), and the water supply pipe (303) is connected to a water pump.
7. The unmanned vehicle simulation device according to claim 6, characterized in that: The water diversion pipes (301) are multiple groups, and the multiple groups of water diversion pipes (301) are all bent downward.