Intelligent networked vehicle complex environment testing device

Abstract

The application provides a kind of intelligent network connection car complex environment testing device.The intelligent network connection car complex environment testing device includes test mechanism and protection mechanism.The intelligent network connection car complex environment testing device provided by the application can form the effect of jolt due to the driving base can be adjusted to match the road surface, the 3D projection component generates three-dimensional bounding box or point cloud data, accurately marks the size, position and motion trajectory of the obstacle, ensures that the driver or automatic driving system obtains the "depth perception" ability, at the same time, the system can simulate the vehicle rollover, scattered gravel and other non-standard obstacles, combined with semantic information and point cloud fusion technology, improve the adaptability to complex scene, the driving base adjusts the height through hydraulic or electric mechanism, so as to simulate the vehicle body posture under different road conditions, and the influence on the visual sensor and laser sensor provided with protection facilities under extreme weather conditions can be tested, so as to ensure the comprehensiveness and safety of test.

Description

Technical Field

[0001] This invention relates to the field of automotive testing, and more particularly to a complex environment testing device for intelligent connected vehicles. Background Technology

[0002] Currently, most intelligent connected vehicle complex environment testing devices rely on computer control, using pre-programmed obstacles and driving environments to test and control the vehicle's intelligent driving system. However, this program-generated approach has significant drawbacks. The obstacle shapes and driving environment characteristics constructed by the program differ greatly from the real world. The real environment is full of complexity and uncertainty, which program simulations cannot fully capture. For example, irregular obstacles that may appear on the road at any time, and sudden traffic situations, cannot be fully covered by program-generated scenarios.

[0003] Choosing to conduct direct testing in reality presents numerous challenges. Firstly, real-world testing is extremely costly, requiring significant investment of manpower, resources, and capital, including renting testing sites, assigning professional testing personnel, and preparing testing vehicles and equipment. Secondly, real-world testing is severely limited by time and location, making it difficult to cover all possible edge scenarios within a limited time and space, such as extreme weather conditions or remote and complex road conditions. Furthermore, simulating crisis situations is fraught with difficulty, as it's challenging to accurately recreate emergencies such as sudden vehicle loss of control or pedestrians suddenly running in. Forcing simulations also carries significant risks, potentially leading to personal injury and property damage.

[0004] Furthermore, existing testing methods are insufficient for adaptability testing in special environments such as rain and snow, making it difficult to fully guarantee the performance of intelligent vehicle recognition systems in such weather conditions. This makes it impossible to ensure that intelligent vehicles can operate safely and stably in the face of various complex weather conditions and emergencies during actual driving, which undoubtedly poses a hidden danger to the safety of intelligent vehicles on the road.

[0005] Therefore, it is necessary to provide a complex environment testing device for intelligent connected vehicles to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention provides a complex environment testing device for intelligent connected vehicles, which solves the problems of existing environmental testing devices that rely on program-generated obstacles and environmental testing of intelligent driving vehicles, which are inconsistent with reality and difficult to simulate its complex uncertainties; direct testing in reality is costly and has many limitations, making it difficult to cover edge scenarios and accurately simulate crises, resulting in missing test data and unreliable adaptability of the rain and snow recognition system, thus affecting the safety of intelligent vehicles on the road.

[0007] To solve the above-mentioned technical problems, the present invention provides a complex environment testing device for intelligent connected vehicles, comprising: a testing mechanism and a protective mechanism, wherein the protective mechanism is disposed on the top of the testing mechanism;

[0008] The testing mechanism includes a drive base, a center of gravity simulation component located above the drive base, a seat cushion located above the center of gravity simulation component, a frame simulation component, and a 3D projection component connected to the frame simulation component. The drive base is used to simulate vibrations on different road sections. The frame simulation component is positioned above the drive base. The center of gravity simulation component is used to simulate the vehicle's tilt and lean during driving.

[0009] The protective mechanism includes a body assembly, a visual sensing assembly connected to the body assembly, an adjustment assembly connected to the body assembly, a protective assembly connected to the visual sensing assembly, a pressure assembly, a laser sensing assembly, and an isolation assembly located outside the laser sensing assembly, wherein the pressure assembly is disposed above the visual sensing assembly, and the laser sensing assembly is disposed above the body assembly.

[0010] The body components and vision sensors are mounted above the chassis simulation components.

[0011] Preferably, the upper part of the drive base is fixedly connected to the lower part of the center of gravity simulation component, the upper part of the center of gravity simulation component is fixedly connected to the lower part of the seat cushion, the upper part of the drive base is fixedly connected to the lower part of the frame simulation component, and the upper part of the frame simulation component is fixedly connected to the 3D projection component.

[0012] Preferably, one side of the body assembly is fixedly connected to the vision sensing assembly, the upper part of the body assembly is kinetically connected to the lower part of the adjustment assembly, the adjustment assembly is engaged with two protective assemblies respectively, and both protective assemblies are slidably connected to the front of the vision sensing assembly, the upper part of the vision sensing assembly is connected to the pressure assembly, the upper part of the body assembly is fixedly connected to the laser sensing assembly, and the isolation assembly is fixedly connected above the laser sensing assembly.

[0013] Preferably, the vehicle frame simulation component includes a platform, with two A-pillar simulation rods fixedly connected to the top of the platform, the top ends of the two A-pillar simulation rods being fixedly connected to the same arc-shaped plate, and a roof simulation plate being fixedly connected to the top of the arc-shaped plate;

[0014] The front of the arc-shaped plate is fixedly connected to the 3D projection component, and the top of the vehicle roof simulation plate is connected to the body component and the visual sensing component respectively.

[0015] Preferably, the body component includes a driver, and two limiting grooves are formed above the driver;

[0016] The top of the driver is connected to the adjustment component, one side of the driver is fixedly connected to the vision sensing component, and the two protective components are slidably connected in the two limiting grooves respectively.

[0017] Preferably, the visual sensing component includes a visual sensor, and a plurality of cameras are disposed in front of the visual sensor;

[0018] One side of the vision sensor is fixedly connected to the driver, the top of the vision sensor is connected to the pressure assembly, and both of the protective assemblies overlap with the vision sensor.

[0019] Preferably, the adjusting component includes a gear, a drive shaft is fixedly connected to the lower part of the gear, a lead screw is fixedly connected to the upper part of the gear, and a limit block is fixedly connected to the top end of the lead screw;

[0020] The gear is connected to the driver via a drive shaft, and the gear meshes with two protective components. The isolation component is threaded onto the outside of the lead screw.

[0021] Preferably, the protective component includes a protective sheet with a groove on its inner side, a bracket fixedly connected to the outer side of the protective sheet, the other end of the bracket fixedly connected to a toothed plate, and a limit rod fixedly connected to the lower part of the toothed plate.

[0022] The limiting rod is slidably connected in one of the limiting grooves, the toothed plate meshes with the gear, and the protective plate is slidably connected in front of the camera.

[0023] Preferably, the pressure assembly includes a blower, which is connected to the connecting cover via two guide pipes;

[0024] The fan and the connecting cover are both fixedly connected above the vision sensor, and the connecting cover is connected to the vision sensor.

[0025] The laser sensing component includes a laser sensor, with several support columns fixedly connected below the laser sensor, and a through hole opened above the laser sensor.

[0026] The lead screw is located inside the through hole, the bottom end of the support column is fixedly connected to the top of the driver, and the isolation assembly is located outside the laser sensor.

[0027] Preferably, the isolation assembly includes an isolation cover, a nut is fixedly connected to the top of the isolation cover, and a plurality of telescopic rods are fixedly connected to the top of the inner wall of the isolation cover;

[0028] The nut is threaded onto the outside of the lead screw, and the bottom ends of several telescopic rods are fixedly connected above the laser sensor.

[0029] Compared with related technologies, the intelligent connected vehicle complex environment testing device provided by the present invention has the following beneficial effects:

[0030] This invention provides a complex environment testing device for intelligent connected vehicles. In use, a 3D projection component is activated to simulate obstacles and road conditions. Simultaneously, an external weather adjustment simulation component and a drive base create a unified simulated environment. Since the drive base can adjust to create a bumpy effect, the 3D projection component generates three-dimensional bounding boxes or point cloud data to accurately label the size, position, and trajectory of obstacles (such as vehicles, pedestrians, and roadblocks), ensuring the driver or autonomous driving system gains "depth perception" capabilities. The system can also simulate non-standard obstacles such as overturned vehicles and scattered gravel. Combining semantic information with point cloud fusion technology enhances adaptability to complex scenarios. The drive base adjusts its height via hydraulic or electric mechanisms, working with road undulation data to simulate vehicle posture under different road conditions. Furthermore, it can test the impact of extreme weather conditions on visual and laser sensors with protective features, ensuring the comprehensiveness and safety of the test. Attached Figure Description

[0031] Figure 1 A schematic diagram of a preferred embodiment of the intelligent connected vehicle complex environment testing device provided by the present invention;

[0032] Figure 2 for Figure 1 The diagram shows the structural schematic of the center of gravity simulation component.

[0033] Figure 3 for Figure 1 The diagram shows the structural schematic of the chassis simulation component.

[0034] Figure 4 for Figure 1 The diagram shows the structure of the protective mechanism.

[0035] Figure 5 for Figure 1 The diagram shows the unfolded structure of the protective components.

[0036] Figure 6 for Figure 1 The diagram shows the structure of the laser sensing component.

[0037] Figure 7 for Figure 6 The enlarged schematic diagram of part A shown below;

[0038] Figure 8 for Figure 1 The diagram shows a cross-sectional view of the isolation component.

[0039] The diagram is labeled: 1. Testing facility; 2. Protection facility.

[0040] 11. Drive base; 12. Center of gravity simulation component; 13. Seat cushion; 14. Frame simulation component; 15. 3D projection component.

[0041] 21. Body components; 22. Vision sensing components; 23. Adjustment components; 24. Protection components; 25. Pressure components; 26. Laser sensing components; 27. Isolation components.

[0042] 141. Platform; 142. A-pillar simulation rod; 143. Curved plate; 144. Roof simulation plate.

[0043] 211. Driver, 212. Limiting slot,

[0044] 221. Visual sensor; 222. Camera.

[0045] 231. Gear; 232. Drive shaft; 233. Lead screw; 234. Limit block.

[0046] 241. Protective plate; 242. Groove; 243. Bracket; 244. Toothed plate; 245. Limiting rod.

[0047] 251. Fan, 252. Guide pipe, 253. Connecting cover,

[0048] 261. Laser sensor; 262. Support column; 263. Through hole.

[0049] 271. Isolation cover; 272. Nut; 273. Telescopic rod. Detailed Implementation

[0050] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0051] Please refer to the following: Figures 1 to 8 The intelligent connected vehicle complex environment testing device includes: a testing mechanism 1 and a protective mechanism 2, wherein the protective mechanism 2 is located on top of the testing mechanism 1;

[0052] Test mechanism 1 includes a drive base 11, a center of gravity simulation component 12 located above the drive base 11, a seat cushion 13 located above the center of gravity simulation component 12, a frame simulation component 14, and a 3D projection component 15 connected to the frame simulation component 14. The drive base 11 is used to simulate vibrations on different road sections, the frame simulation component 14 is positioned above the drive base 11, and the center of gravity simulation component 12 is used to simulate the vehicle's tilting during driving. Test mechanism 2 includes a body assembly 21, a vision sensing component 22 connected to the body assembly 21, an adjustment component 23 connected to the body assembly 21, a protective component 24 connected to the vision sensing component 22, a pressure component 25, a laser sensing component 26, and an isolation component 27 located outside the laser sensing component 26. The pressure component 25 is positioned above the vision sensing component 22, the laser sensing component 26 is positioned above the body assembly 21, and the body assembly 21 and the vision sensor 221 are mounted on the frame simulation component 14. Above, when in use, the 3D projection component 15 is activated to simulate obstacles and road conditions ahead. Simultaneously, it works with the external weather adjustment simulation component and the drive base 11 to create overall simulation conditions. Since the drive base 11 can adjust to create a bumpy effect, the 3D projection component 15 generates three-dimensional bounding boxes or point cloud data to accurately label the size, position, and trajectory of obstacles such as vehicles, pedestrians, and roadblocks, ensuring the driver or autonomous driving system gains "depth perception" capabilities. The system can also simulate non-standard obstacles such as overturned vehicles and scattered gravel. Combining semantic information with point cloud fusion technology, it enhances adaptability to complex scenarios. The drive base 11 adjusts its height via hydraulic or electric mechanisms, working with road undulation data to simulate vehicle posture under different road conditions. It can also test the impact of extreme weather conditions on the protected visual sensor 221 and laser sensor 261, ensuring the comprehensiveness and safety of the test.

[0053] The upper part of the drive base 11 is fixedly connected to the lower part of the center of gravity simulation component 12. The upper part of the center of gravity simulation component 12 is fixedly connected to the lower part of the seat cushion 13. The upper part of the drive base 11 is fixedly connected to the lower part of the frame simulation component 14. The upper part of the frame simulation component 14 is fixedly connected to the 3D projection component 15. One side of the body component 21 is fixedly connected to the visual sensing component 22. The upper part of the body component 21 is connected to the lower part of the adjustment component 23. The adjustment component 23 engages with two protective components 24 respectively, and both protective components 24 are connected to the visual sensing component 23. The front of component 22 is slidably connected. The upper part of the visual sensing component 22 is connected to the pressure component 25. The upper part of the body component 21 is fixedly connected to the laser sensing component 26. The isolation component 27 is fixedly connected above the laser sensing component 26. During simulated driving, the driver 211 and the fan 251 start synchronously. The driver 211 drives the gear 231 to rotate. When the gear 231 rotates, it drives the two side toothed plates 244 to move horizontally. At this time, the limit rod 245 slides along the limit groove 212 to ensure that the toothed plate 244 moves smoothly. The two side toothed plates 244 respectively drive Two protective plates extend outwards to the working position, forming initial protection for the internal components. Simultaneously, gear 231 rotates synchronously, driving lead screw 233 to rotate. Since the isolation cover 271 is rigidly connected to the laser sensor 261 through telescopic rod 273, the threaded engagement between lead screw 233 and nut 272 causes the isolation cover 271 to move horizontally upwards, thus fully exposing the laser sensor 261 to the working environment. At this time, camera 222 begins to collect external projection information and feeds it back to the control system in real time through vision sensor 221. During the operation of fan 251, a large amount of air is accelerated through guide pipe 252 and enters connecting cover 253, and is directionally sprayed to the area above camera 222. This design achieves rain protection through a dual mechanism: firstly, high-speed airflow forms a continuous air film on the lens surface, effectively reducing direct contact with rainwater; secondly, for raindrops that have already adhered, the airflow accelerates their evaporation through shear force or blows them directly away from the lens surface. The above process can avoid image blurring caused by rainwater adhesion, ensuring that camera 222 can still clearly obtain road information in extreme weather conditions such as rain, thereby eliminating safety hazards caused by environmental interference.

[0054] The vehicle frame simulation component 14 includes a platform 141. Two A-pillar simulation rods 142 are fixedly connected to the top of the platform 141. The top ends of the two A-pillar simulation rods 142 are fixedly connected to the same arc-shaped plate 143. A roof simulation plate 144 is fixedly connected to the top of the arc-shaped plate 143. The front of the arc-shaped plate 143 is fixedly connected to a 3D projection component 15. The top of the roof simulation plate 144 is connected to the body component 21 and the vision sensing component 22, respectively. The body component 21 includes a driver 211. Two limiting slots 212 are formed on the top of the driver 211. The top of the actuator 211 is connected to the adjustment component 23 via a transmission. One side of the driver 211 is fixedly connected to the vision sensing component 22. Two protective components 24 are slidably connected in two limiting grooves 212. The vision sensing component 22 includes a vision sensor 221. Several cameras 222 are arranged in front of the vision sensor 221. One side of the vision sensor 221 is fixedly connected to the driver 211. The top of the vision sensor 221 is connected to the pressure component 25. Both protective components 24 overlap with the vision sensor 221. After the test, the driver... Switching to reverse operation mode 211 drives gear 231 to rotate synchronously in reverse. As gear 231 rotates, it drives the toothed plates 244 on both sides to retract to their initial positions. During this process, the limiting rod 245 slides along the limiting groove 212 to ensure smooth movement. The toothed plates 244 drive the protective plate to close to the protective state, forming a physical shield for the camera 222. At the same time, the lead screw 233 rotates synchronously in reverse under the transmission of gear 231. Through the threaded engagement of nut 272 and lead screw 233, the isolation cover 271 is driven to move vertically downward along the telescopic rod 273, finally covering the surface of the laser sensor 261. This design achieves equipment protection through a dual protection mechanism: the closed protective plate can block more than 90% of airborne particulate matter, while the isolation cover 271 adopts a sealed structure to prevent the intrusion of fine dust. Laboratory simulation tests have verified that this solution can effectively reduce signal attenuation caused by dust adhesion. Through this automated protection structure, the equipment does not need to be manually cleaned before each use, which not only improves operating efficiency but also avoids surface scratches that may be caused by cleaning tools, thereby extending the sensor's service life to more than 2.3 times that of traditional designs.

[0055] The adjusting component 23 includes a gear 231, a drive shaft 232 fixedly connected to the lower part of the gear 231, a lead screw 233 fixedly connected to the upper part of the gear 231, and a limit block 234 fixedly connected to the top of the lead screw 233. The gear 231 is connected to the driver 211 via the drive shaft 232. The gear 231 meshes with two protective components 24. An isolation component 27 is threaded onto the lead screw 233. The protective component 24 includes a protective plate 241, with a groove 242 formed on the inner side of the protective plate 241. A bracket 243 is fixedly connected to the outside of 241. The other end of the bracket 243 is fixedly connected to the toothed plate 244. A limit rod 245 is fixedly connected to the bottom of the toothed plate 244. The limit rod 245 is slidably connected in one of the limit grooves 212. The toothed plate 244 meshes with the gear 231. The protective plate 241 is slidably connected in front of the camera 222. This device adopts a motor-driven quantitative design. The opening and closing of the protective plate and the isolation cover 271 are achieved by the motor rotating forward / reverse a specified number of times, which significantly reduces the complexity of operation. Compared with the traditional manual adjustment scheme, this design not only shortens the equipment protection response time to within 0.8 seconds, but also maintains a 2mm safe distance between the protective component 24 and the sensor surface through precise stroke control, improving the protection effectiveness by more than 40%.

[0056] The inner layer of the protective plate features grooves 242, combined with an anodized surface treatment. This not only acts as a physical barrier to block over 95% of particulate matter from entering, but also prevents lens scratches caused by direct metal contact. After 5000 opening and closing durability tests, this structure has been verified to keep the scratch depth on the camera 222 surface within 0.02mm, ensuring stable image quality.

[0057] The pressure assembly 25 includes a blower 251, which is connected to a connecting cover 253 via two guide pipes 252. Both the blower 251 and the connecting cover 253 are fixedly connected above the vision sensor 221. The connecting cover 253 is connected to the vision sensor 221. The laser sensing assembly 26 includes a laser sensor 261, with several support columns 262 fixedly connected below it. A through hole 263 is provided above the laser sensor 261, and a lead screw 233 is located within the through hole 263. The bottom ends of the support columns 262 are fixedly connected above the driver 211. The isolation assembly 27 is located outside the laser sensor 261 and includes an isolation cover 271. A nut 272 is fixedly connected at the top, and several telescopic rods 273 are fixedly connected to the upper part of the inner wall of the isolation cover 271. The nut 272 is threaded to the outside of the lead rod 233, and the bottom ends of the telescopic rods 273 are all fixedly connected to the top of the laser sensor 261. The fan 251 system integrates gas-liquid separation function, and forms a continuous vortex field on the lens surface through a 0.3MPa high-pressure airflow. This design achieves a triple cleaning effect: the airflow shear force can remove 90% of the attached raindrops; the negative pressure effect accelerates the evaporation of the water film; and the electrostatic adsorption module can capture PM2.5 particles. Actual test data shows that it can still maintain 1080P resolution image transmission under heavy rain conditions, and the energy consumption is reduced by 65% ​​compared with the traditional heating defogging solution.

[0058] Because the bracket 243 adopts an irregular shape design, it ensures that the protective plates on both sides can slide stably, avoiding jamming and ensuring the stability of the device during use.

[0059] The working principle of the intelligent connected vehicle complex environment testing device provided by this invention is as follows:

[0060] When the system starts, the 3D projection component 15 generates a virtual scene of obstacles and road conditions in front, and at the same time, it links the external weather adjustment simulation component rain / fog generator and the six-degree-of-freedom platform 141 of the drive base 11 to construct a simulation environment with multi-physics coupling.

[0061] Simulated driving phase:

[0062] The driver 211 starts synchronously with the fan 251. The driver 211 drives the two toothed plates 244 to move horizontally through the gear 231. The limit rod 245 slides along the limit groove 212 to ensure smooth movement. The toothed plates 244 push the protective plate to unfold to the working position.

[0063] Gear 231 synchronously drives lead screw 233 to rotate, and nut 272 drives isolation cover 271 to move horizontally upward through telescopic rod 273, exposing laser sensor 261;

[0064] The camera 222 collects projection information and feeds it back to the control system via the visual sensor 221;

[0065] The fan 251 delivers high-speed airflow with a velocity of ≥15m / s to the area above the camera 222 through the guide pipe 252, forming an air curtain protective layer.

[0066] After the test:

[0067] The driver 211 runs in reverse, driving the gear 231 and gear plate 244 system to reset, and the protective plate closes to protect the camera 222.

[0068] The screw 233 rotates in the opposite direction, causing the isolation cover 271 to move down and cover the laser sensor 261;

[0069] The entire opening and closing process is controlled by a motor encoder, with a positioning accuracy of ±0.1mm.

[0070] Compared with related technologies, the intelligent connected vehicle complex environment testing device provided by the present invention has the following beneficial effects:

[0071] During the simulated driving process, the driver 211 and the fan 251 start synchronously. The driver 211 drives the gear 231 to rotate. When the gear 231 rotates, it drives the two side gear plates 244 to move horizontally. At this time, the limit rod 245 slides along the limit groove 212 to ensure that the gear plate 244 moves smoothly. The two side gear plates 244 drive the two protective plates to unfold outward to the working position, forming preliminary protection for the internal components. At the same time, the rotation of the gear 231 synchronously drives the lead screw 233 to rotate. Since the isolation cover 271 is rigidly connected to the laser sensor 261 through the telescopic rod 273, the threaded engagement of the lead screw 233 and the nut 272 causes the isolation cover 271 to move horizontally upward, thereby completely exposing the laser sensor 261 to the working environment. At this time, the camera 222 begins to collect external projection information and feeds it back to the control system in real time through the visual sensor 221. During the operation of the fan 251, a large amount of air is accelerated through the guide pipe 252 and enters the connecting cover 253, and is directed to the area above the camera 222. This design achieves rain protection through a dual mechanism: firstly, the high-speed airflow forms a continuous air film on the lens surface, effectively reducing direct contact with rainwater; secondly, for raindrops that have already adhered, the airflow accelerates their evaporation through shear force or blows them directly away from the lens surface. The above process can avoid image blurring caused by rainwater adhesion, ensuring that the camera 222 can still clearly obtain road information in extreme weather conditions such as rain, thereby eliminating safety hazards caused by environmental interference.

[0072] After the test, the driver 211 switches to reverse operation mode, driving the gear 231 to rotate synchronously in reverse. When the gear 231 rotates, it drives the toothed plates 244 on both sides to retract to their initial positions. During this process, the limiting rod 245 slides along the limiting groove 212 to ensure smooth movement. The toothed plates 244 drive the protective plate to close to the protective state, forming a physical shield for the camera 222. At the same time, the lead screw 233 rotates synchronously in reverse under the transmission of the gear 231. Through the threaded engagement of the nut 272 and the lead screw 233, it drives the isolation cover 271 to move vertically downward along the telescopic rod 273, finally covering the camera 222. The laser sensor 261 surface features a dual protection mechanism: the closed protective plate blocks over 90% of airborne particles, while the isolation cover 271 employs a sealed structure to prevent the intrusion of fine dust. Laboratory simulation tests have verified that this solution effectively reduces signal attenuation caused by dust adhesion. Through this automated protection structure, the device does not require manual cleaning before each use, improving operational efficiency and avoiding surface scratches that cleaning tools may cause, thereby extending the sensor's lifespan to more than 2.3 times that of traditional designs.

[0073] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An intelligent networked vehicle complex environment testing device, characterized in that, The utility model relates to a kind of vehicle obstacle avoidance simulation test device, including: Test mechanism (1) and protection mechanism (2), wherein, protection mechanism (2) is arranged at the top of test mechanism (1); Test mechanism (1), including drive base (11), gravity center simulation assembly (12) located above drive base (11), cushion (13) located above gravity center simulation assembly (12), frame simulation assembly (14), 3D projection assembly (15) connected with frame simulation assembly (14), wherein, drive base (11) is used to simulate the shaking of different road sections, the frame simulation assembly (14) is arranged above the drive base (11), and the gravity center simulation assembly (12) is used to simulate the inclination of vehicle driving;And, Protection mechanism (2), including body assembly (21), visual sensing assembly (22) connected with body assembly (21), adjusting assembly (23) connected with body assembly (21), protection assembly (24) connected with visual sensing assembly (22), pressure assembly (25), laser sensing assembly (26) and isolation assembly (27) located outside laser sensing assembly (26), wherein, pressure assembly (25) is arranged above visual sensing assembly (22), and the laser sensing assembly (26) is arranged above the body assembly (21); The body assembly (21) and visual sensor (221) are installed above the frame simulation assembly (14), and the 3D projection assembly (15) is used to generate the virtual scene of front obstacle and road surface condition; One side of the body assembly (21) is fixedly connected with the visual sensing assembly (22), the upper side of the body assembly (21) is drivingly connected with the lower side of the adjusting assembly (23), the adjusting assembly (23) is engaged with the two protection assemblies (24) respectively, the two protection assemblies (24) are slidingly connected with the front side of the visual sensing assembly (22), the upper side of the visual sensing assembly (22) is communicated with the pressure assembly (25), the upper side of the body assembly (21) is fixedly connected with the laser sensing assembly (26), and the isolation assembly (27) is fixedly connected above the laser sensing assembly (26); The body assembly (21) includes a driver (211), and two limiting grooves (212) are formed in the upper side of the driver (211); The top end of the driver (211) is drivingly connected with the adjusting assembly (23), one side of the driver (211) is fixedly connected with the visual sensing assembly (22), and the two protection assemblies (24) are slidingly connected in the two limiting grooves (212) respectively; The visual sensing assembly (22) includes a visual sensor (221), and a plurality of cameras (222) are arranged in front of the visual sensor (221); One side of the visual sensor (221) is fixedly connected with the driver (211), the upper side of the visual sensor (221) is communicated with the pressure assembly (25), and the two protection assemblies (24) are overlapped with the visual sensor (221). The adjusting assembly (23) comprises a gear (231), the lower side of the gear (231) is fixedly connected with a driving shaft (232), the upper side of the gear (231) is fixedly connected with a lead screw (233), and the top end of the lead screw (233) is fixedly connected with a limiting block (234); The gear (231) is in transmission connection with the driver (211) through the driving shaft (232), the gear (231) is in engagement with two protection assemblies (24), and the isolation assembly (27) is screwedly connected outside the lead screw (233); The protection assembly (24) comprises a protection sheet (241), the inner side of the protection sheet (241) is provided with a groove (242), the outer side of the protection sheet (241) is fixedly connected with a support (243), the other end of the support (243) is fixedly connected with a toothed plate (244), and the lower side of the toothed plate (244) is fixedly connected with a limiting rod (245); The limiting rod (245) is slidingly connected in one of the limiting grooves (212), the toothed plate (244) is in engagement with the gear (231), and the protection sheet (241) is slidingly connected in front of the camera (222); The pressure assembly (25) comprises a fan (251), and the fan (251) is in communication with a connecting cover (253) through two flow guide pipes (252); The fan (251) and the connecting cover (253) are both fixedly connected above the visual sensor (221), and the connecting cover (253) is in communication with the visual sensor (221); The laser sensing assembly (26) comprises a laser sensor (261), the lower side of the laser sensor (261) is fixedly connected with a plurality of supporting columns (262), and the upper side of the laser sensor (261) is provided with a through hole (263); The lead screw (233) is located in the through hole (263), the bottom end of the supporting column (262) is fixedly connected above the driver (211), and the isolation assembly (27) is located outside the laser sensor (261); The isolation assembly (27) comprises an isolation cover (271), the upper side of the isolation cover (271) is fixedly connected with a nut (272), and the inner wall of the isolation cover (271) is fixedly connected with a plurality of telescopic rods (273); The nut (272) is screwedly connected outside the lead screw (233), and the bottom end of each of the plurality of telescopic rods (273) is fixedly connected above the laser sensor (261). 2.The intelligent connected vehicle complex environment testing device according to claim 1, characterized in that, The upper side of the driving base (11) is fixedly connected with the lower side of the gravity simulation assembly (12), the upper side of the gravity simulation assembly (12) is fixedly connected with the lower side of the seat cushion (13), the upper side of the driving base (11) is fixedly connected with the lower side of the frame simulation assembly (14), and the upper side of the frame simulation assembly (14) is fixedly connected with the 3D projection assembly (15). 3.The intelligent networked vehicle complex environment testing device according to claim 2, characterized in that, The frame simulation assembly (14) comprises a platform (141), two A-column simulation rods (142) are fixedly connected above the platform (141), top ends of the two A-column simulation rods (142) are fixedly connected with the same arc-shaped plate (143), and a roof simulation plate (144) is fixedly connected above the arc-shaped plate (143); The front of the arc-shaped plate (143) is fixedly connected with a 3D projection assembly (15), and the top of the roof simulation plate (144) is connected with a machine body assembly (21) and a visual sensing assembly (22) respectively.

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