Shielding testing device for environment sensing sensor of intelligent driving automobile
By designing an occlusion testing device for environmental perception sensors in intelligent driving vehicles, precise occlusion control and real-time recording of multiple sensors were achieved, solving the problems of poor occlusion control and difficult deployment in existing technologies, and improving the accuracy and efficiency of occlusion testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHONGCE HUITONG (SHANGHAI) INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2026-02-04
- Publication Date
- 2026-04-21
AI Technical Summary
Existing technologies struggle to achieve joint control of multiple devices in environmental perception sensor occlusion testing for intelligent driving vehicles, resulting in inaccurate occlusion timing and difficulties in deployment and poor occlusion control in practical applications.
An intelligent driving vehicle environmental perception sensor occlusion testing device was designed, comprising a base bracket, an occlusion module bracket, an occlusion module, a movable connection device, an occlusion release device, and a control and acquisition unit. It can individually or simultaneously occlude multiple sensors, record the occlusion time, and achieve precise occlusion actions through signal control and data acquisition.
This technology enables the separate or simultaneous occlusion of multiple sensors and records the occlusion time, solving the problems of poor occlusion control and difficult deployment in existing technologies, and improving the accuracy and efficiency of occlusion testing.
Smart Images
Figure CN121898804A_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present invention relate to a sensor occlusion testing device in the field of functional safety and expected functional safety testing of intelligent driving vehicles, and particularly to an environmental perception sensor occlusion testing device for intelligent driving vehicles. The environmental perception sensors include, but are not limited to, cameras, lidar, millimeter-wave radar, ultrasonic radar, corner radar, blind spot radar, etc. Background Technology
[0002] Functional safety and anticipated functional safety are crucial aspects of the safety of autonomous vehicles. Occlusion testing of environmental perception sensors in autonomous vehicles is an important verification method during the development and testing of functional safety and anticipated functional safety. During testing, it is necessary to physically obstruct the vehicle's environmental perception sensors, such as cameras, lidar, and millimeter-wave radar, under different operating conditions. However, since the tests are conducted at different vehicle speeds, it is difficult to obstruct the vehicle's environmental perception sensors at high speeds, and it is also impossible to accurately record the timing of obstruction for evaluation of test results. As attached Figure 1 As shown, an ultrasonic radar is blocked by a metal shielding material driven by a rotating motor. The advantage of this method is that the blocking and removal can be controlled by a controller. However, it does not consider practical application scenarios. First, the weight of the metal shielding plate restricts the selection of the motor, the size of the motor affects the ease of installation, and the inertia of the shielding plate affects the motor control, resulting in poor blocking control performance. Second, the motor's response may not meet the blocking time requirements.
[0003] As attached Figure 2 As shown, a stepper motor drives a lead screw to rotate, which in turn causes a transmission slider to move forward and backward. The obstruction plate is connected to the transmission slider via a universal adjusting rod, thus moving the obstruction plate and obstructing the forward-facing camera. The disadvantages of this solution are: 1. Difficult to install: The forward-facing camera is usually located above the windshield. To avoid affecting the normal driving of the vehicle in front, a longer lead screw is required, resulting in a larger motor. Installing it on the windshield will also affect the driver's visibility; 2. High wind speeds occur during vehicle operation, and the obstruction does not consider how to ensure the obstruction plate is unaffected; 3. With the development of intelligent vehicles, a LiDAR will be installed above the forward-facing camera. The large size of this device may affect the LiDAR, causing additional impact on testing; 4. The time from the start of obstruction to its completion is relatively long.
[0004] The above patents use two methods to perform occlusion, both employing motors: one based on motor rotation, and the other on the principle of motor rotation-linear motion. However, neither considers the problems that may arise in practical applications, nor does it achieve joint control of multiple devices or accurate recording of occlusion time. It cannot enable a single device to be used for occlusion of multiple sensors. Summary of the Invention
[0005] The purpose of this invention is to provide an environmental perception sensor occlusion testing device for intelligent driving vehicles. This device can be used individually or in multiples simultaneously. When multiple occlusion devices are installed, they can occlude sensors individually or simultaneously. Environmental perception sensor types include, but are not limited to, cameras, lidar, millimeter-wave radar, ultrasonic radar, corner radar, and blind spot radar, all of which can record the time of occlusion or provide a signal indicating the time of occlusion. This invention achieves the following technical effects: (1) Shielding module: used to install different shielding materials and perform shielding actions through a mechanism; (2) Control and acquisition module: used to realize the blocking action. It can control the switch within a certain distance through signals, collect and record data such as time. The control and acquisition module can realize the single control of the device or the simultaneous control of groups, and realize the functions of blocking different sensors separately and simultaneously. (3) Fixing device: used to fix the testing device to the surface of the vehicle; (4) Obstruction area adjustment device: used to adjust the obstruction area of the sensor; To achieve the above objectives, embodiments of the present invention provide a test device for occlusion of environmental perception sensors in intelligent driving vehicles, comprising: Base bracket; The base bracket is installed at the bottom of the intelligent driving vehicle environmental perception sensor occlusion test device; A shielding module bracket is located above the base bracket, and one side of the shielding module bracket is movably connected to the base bracket. A shielding module; the shielding module is movably connected to one side of the shielding module bracket; A movable connecting device is movably connected to one end of the movable connecting device on one side of the shielding module bracket; the other end of the movable connecting device is movably connected to the base bracket. A shielding release device is provided between the base bracket and the shielding module bracket; A control and acquisition unit is electrically connected to the occlusion release device; the control and acquisition unit controls the occlusion release device to quickly release the occlusion module bracket and the occlusion module to quickly block the vehicle environment perception sensor; and records the time of occlusion and analyzes the sensitivity of the vehicle environment perception sensor to occlusion.
[0006] In the intelligent driving vehicle environmental perception sensor occlusion testing device of the present invention, the environmental perception sensor includes: a camera, a lidar, a millimeter-wave radar, an ultrasonic radar, an angular radar, and a blind spot radar; one side of the occlusion module bracket is movably connected to the base bracket by a spring hinge.
[0007] In the intelligent driving vehicle environmental perception sensor occlusion testing device of the present invention, the base bracket further includes: Base plate; the base plate is fixed below the base bracket; A number of vacuum suction cups are movably connected below the base plate; the position of the base plate can be adjusted by adjusting the position of the vacuum suction cups. Vertical slide rail; one end of the vertical slide rail is fixed on both sides of the base plate; a first slide groove is formed on the vertical slide rail; A crossbar is movably connected to the other end of the vertical slide rail within the first slide groove via an adjusting bolt; a first opening is formed on one side of the crossbar; one end of the movable connecting device is movably connected within the first opening.
[0008] In the intelligent driving vehicle environmental perception sensor occlusion testing device of the present invention, the occlusion module bracket further includes: A connecting bracket is movably connected to one end of the base bracket via a spring hinge on the base plate; A second slide groove is formed on one end of the connecting bracket; one end of the movable connecting device is movably connected within the second slide groove. An adjusting rod is movably connected to one end of the adjusting rod within the second sliding groove; the other end of the adjusting rod is movably connected to one side of the shielding module.
[0009] In the intelligent driving vehicle environmental perception sensor occlusion testing device of the present invention, the occlusion module further includes: The movable mounting strip has one end of the adjusting rod of the shielding module bracket movably connected to a third sliding groove provided on the movable mounting strip; one end of the movable mounting strip is movably connected to a second sliding groove of the shielding module bracket. A shielding plate is fixed above the movable mounting strip; the shielding plate can be a shielding material with different materials and customizable shielding area.
[0010] In the intelligent driving vehicle environmental perception sensor occlusion testing device of the present invention, the movable connection device further includes: The first connecting rod is movably connected to one end of the first connecting rod on the first sliding groove opened in the base bracket; The second connecting rod has one end of the first connecting rod movably connected to one end of the second connecting rod; the other end of the second connecting rod is movably connected to the second sliding groove on the shielding module bracket.
[0011] In the intelligent driving vehicle environmental perception sensor occlusion testing device of the present invention, the occlusion release device further includes: A suction plate is fixedly connected to one end of the suction plate at the middle of the lower part of the shielding module bracket; A suction and release device is fixed above the base bracket; the suction and release device suctions the suction plate; the suction and release device is electrically connected to the control and acquisition unit.
[0012] In the intelligent driving vehicle environmental perception sensor occlusion testing device described in this invention, the attraction and release device is an electromagnet or an electric push rod.
[0013] In the intelligent driving vehicle environmental perception sensor occlusion testing device of the present invention, the control and acquisition unit further includes: A photoelectric sensor is fixed on the base bracket; the photoelectric sensor senses the baffle plate during the falling process. The signal acquisition unit controls the engagement and release of the engagement and release device and acquires the release time of the engagement and release device, i.e., the first time; the photoelectric sensor is electrically connected to the signal acquisition unit; the signal acquisition unit acquires the time during which the photoelectric sensor senses the falling of the shield, i.e., the second time; The control unit is electrically connected to the signal acquisition unit; the control unit is electrically connected to the vehicle environment perception sensor; the control unit receives and saves the time when the vehicle environment perception sensor senses occlusion, i.e., the third time; the signal acquisition unit transmits and saves the first time and the second time to the control unit; the control unit analyzes and calculates the difference relationship between the first time, the second time and the third time to test the reaction speed of the vehicle environment perception sensor.
[0014] In the intelligent driving vehicle environmental perception sensor occlusion testing device described in this invention, the control unit is a host computer that communicates with the signal acquisition device and the control unit via wireless communication. Users can remotely control and test the device through software installed on the host computer.
[0015] Compared with the prior art, the embodiments of the present invention employ the following method: a base bracket is installed at the bottom of the intelligent driving vehicle environmental perception sensor occlusion testing device; one side of the occlusion module bracket is movably connected to the base bracket above the base bracket; an occlusion module is movably connected to one side of the occlusion module bracket; one end of the movable connecting device is movably connected to one side of the occlusion module bracket; the other end of the movable connecting device is movably connected to the base bracket; an occlusion release device is installed between the base bracket and the occlusion module bracket; a control and acquisition unit is electrically connected to the occlusion release device; the control and acquisition unit controls the occlusion release device to quickly release the occlusion module bracket and the occlusion module to quickly occlude the vehicle environmental perception sensor; the time of occlusion is recorded, and the sensitivity of the vehicle environmental perception sensor to occlusion is analyzed. This invention enables both single and simultaneous use of multiple shielding devices. When multiple shielding devices are installed, they can shield sensors individually or simultaneously, recording the time of shielding or providing a signal feedback of the shielding moment. It can be used with different shielding materials and execute shielding actions through a mechanism. A control and acquisition module is used to implement the shielding action, controlling its switching within a certain distance via signals, collecting and recording data such as time. The control and acquisition module can control the device individually or in groups simultaneously, enabling separate or simultaneous shielding of different sensors. A fixing device is used to fix the testing device to the vehicle surface. A shielding area adjustment device is used to adjust the sensor shielding area. This invention overcomes the following shortcomings of the two existing technical solutions: The first technical solution did not consider the actual application scenario. First, the weight of the metal shield restricts the selection of the motor, the size of the motor affects the convenience of installation, and the inertia of the shield affects the control of the motor, resulting in poor shielding control effect. Second, the motor's action response may not meet the shielding time requirements.
[0016] The second technical solution presents challenges in practical application. The forward-facing camera is typically located above the windshield; to avoid obstructing the vehicle's normal operation, a longer lead screw is required, resulting in a larger motor. Furthermore, its placement on the windshield would impede the driver's visibility. Additionally, the high wind speeds during vehicle operation do not address how to ensure the shielding plate remains unaffected. With the development of intelligent vehicles, LiDAR will be installed above the forward-facing camera; the relatively large size of this device could potentially interfere with the LiDAR, causing additional impact on testing. Other technical issues include the long time required from the start of the shielding process to its completion. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the first technical solution in the prior art of the present invention; Figure 2 This is a schematic diagram of the second technical solution in the prior art of the present invention; Figure 3 This is a schematic diagram of the present invention; Figure 4 This is a schematic diagram illustrating the application process of the present invention; Figure 5 This is a flowchart of the process of the present invention. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the various embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this invention to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.
[0019] The first embodiment of the present invention relates to a device for testing the occlusion of environmental perception sensors in intelligent driving vehicles, such as... Figures 1-5 As shown, it includes: In this embodiment, a base bracket 10 is provided at the bottom of the intelligent driving vehicle environmental perception sensor occlusion test device; the base bracket 10 is used to support the intelligent driving vehicle environmental perception sensor occlusion test device in this embodiment.
[0020] Above the base bracket 10, one side of the shielding module bracket 20 is movably connected to the base bracket 10; the shielding module bracket 20 is used to install the shielding module 30.
[0021] A blocking module 30 is movably connected to one side of the blocking module bracket 20; the blocking module 30 is used to block the environmental perception sensor of the intelligent driving vehicle.
[0022] One end of the movable connecting device 40 is movably connected to one side of the shielding module bracket 20; the other end of the movable connecting device 40 is movably connected to the base bracket 10; the movable connecting device 40 is used to movably connect the shielding module bracket 20 and the base bracket 10.
[0023] A blocking release device 50 is provided between the base bracket 10 and the blocking module bracket 20; the blocking release device 50 is used to control the blocking module 30 to block the intelligent driving vehicle environmental perception sensor 100.
[0024] A control and acquisition unit 60 is electrically connected to the blocking release device 50. The control and acquisition unit 60 controls the blocking release device 50 to quickly release the blocking module bracket 20 and the blocking module 30 to quickly block the vehicle environment perception sensor 100; and records the time of blocking, and analyzes the sensitivity of the vehicle environment perception sensor 100 to the reaction of objects in front of the intelligent driving vehicle. The control and acquisition unit 60 is mainly used to control the blocking release device 50 to quickly release the blocking module bracket 20 and the blocking module 30 to quickly block the vehicle environment perception sensor 100; record the time of blocking, and analyze the sensitivity of the vehicle environment perception sensor 100 to the reaction of objects in front of the intelligent driving vehicle. The intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment can be used individually or in multiple simultaneous applications. When multiple occlusion devices are installed, the sensors can be occluded individually or simultaneously, and the occlusion time can be recorded or a signal indicating the occlusion time can be fed back. It can be used to install different occlusion materials and execute the occlusion action through a mechanism. The control and acquisition module is used to implement the occlusion action, and can control its switching within a certain distance via signals, collecting and recording data such as time. The control and acquisition module can control the device individually or in groups simultaneously, enabling functions such as individual or simultaneous occlusion of different sensors. The fixing device is used to fix the testing device to the vehicle surface. The occlusion area adjustment device is used to adjust the sensor occlusion area. This addresses the following shortcomings of the two existing technical solutions: The first technical solution did not consider the actual application scenario. First, the weight of the metal shield restricts the selection of the motor, the size of the motor affects the convenience of installation, and the inertia of the shield affects the control of the motor, resulting in poor shielding control effect. Second, the motor's action response may not meet the shielding time requirements.
[0025] The second technical solution presents challenges in practical application. The forward-facing camera is typically located above the windshield; to avoid obstructing the vehicle's normal operation, a longer lead screw is required, resulting in a larger motor. Furthermore, its placement on the windshield would impede the driver's visibility. Additionally, the high wind speeds during vehicle operation do not address how to ensure the shielding plate remains unaffected. With the development of intelligent vehicles, LiDAR will be installed above the forward-facing camera; the relatively large size of this device could potentially interfere with the LiDAR, causing additional impact on testing. Other technical issues include the long time required from the start of the shielding process to its completion.
[0026] To achieve the aforementioned technical effects, the intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment, such as... Figures 1-5 As shown, one side of the shielding module bracket 20 is movably connected to the base bracket 10 via a spring hinge 4.
[0027] To achieve the aforementioned technical effects, the intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment, such as... Figures 1-5 As shown, the base bracket 10 also includes: A base plate 11 is fixed below the base bracket 10; the base plate 11 is used to support the base bracket 10.
[0028] Several vacuum suction cups 12 are movably connected below the base plate 11; the position of the base plate 11 can be adjusted by adjusting the position of the vacuum suction cups 12; the vacuum suction cups 12 hold the base plate 11, so that it can be easily installed on the car body and the installation position can be easily adjusted.
[0029] One end of a vertical slide rail 13 is fixed on both sides of the base plate 11; a first slide groove 14 is opened on the vertical slide rail 13; the first slide groove 14 on the vertical slide rail 13 facilitates adjustment of the working position, and then it is fixed by adjusting bolts.
[0030] At the other end of the vertical slide rail 13, a crossbar 15 is movably connected within the first slide groove 14 via an adjusting bolt; a first opening 16 is formed on one side of the crossbar 15; one end of the movable connecting device 40 is movably connected within the first opening 16. The crossbar 15 is used to install the suction and release device 52, and the first opening 16 also serves an adjustment function.
[0031] To achieve the aforementioned technical effects, the intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment, such as... Figures 1-5 As shown, the shielding module bracket 20 also includes: One end of the connecting bracket 21 is movably connected to the base plate 11 of the base bracket 10 via a spring hinge 4; a second sliding groove 22 is provided on the connecting bracket 21 for movably connecting one end of the first connecting rod 41.
[0032] A second slide groove 22 is formed on one end of the connecting bracket 21; one end of the movable connecting device 40 is movably connected in the second slide groove 22. One end of the adjusting rod 23 is movably connected within the second slide groove 22; the other end of the adjusting rod 23 is movably connected to one side of the shielding module 30. The adjusting rod 23 can adjust the angle of the shielding module 30, and after the angle is adjusted, it can be fixed with adjusting bolts.
[0033] To achieve the aforementioned technical effects, the intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment, such as... Figures 1-5 As shown, the occlusion module 30 also includes: The movable mounting strip 31 has one end of the adjusting rod 23 of the shielding module bracket 20 movably connected to the third sliding groove 32 provided on the movable mounting strip 31; one end of the movable mounting strip 31 is movably connected to the second sliding groove 22 of the shielding module bracket 20. A shielding plate 33 is fixed above the movable mounting strip 31; the shielding plate 33 is made of different materials and sizes. The shielding plate 33 is used to shield the intelligent driving vehicle environmental perception sensor 100 in this embodiment.
[0034] To achieve the aforementioned technical effects, the intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment, such as... Figures 1-5 As shown, the movable connecting device 40 also includes: One end of the first connecting rod 41 is movably connected to the first slide groove 14 opened in the base bracket 10; The other end of the first connecting rod 41 is movably connected to one end of the second connecting rod 42; the other end of the second connecting rod 42 is movably connected to the second sliding groove 22 on the shielding module bracket 20. The first connecting rod 41 and the second connecting rod 42 form a movable guide rod connection structure, ensuring that the shielding module 30 can fall quickly, thereby shielding the intelligent driving vehicle environmental perception sensor 100 in this embodiment.
[0035] To achieve the aforementioned technical effects, the intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment, such as... Figures 1-5 As shown, the shielding release device 50 also includes: One end of the suction plate 51 is fixedly connected to the middle of the lower part of the shielding module bracket 20; A suction and release device 52 is fixed above the base bracket 10; the suction and release device 52 suctions the suction plate 51; the suction and release device 52 is electrically connected to the control and acquisition unit 60. The suction plate 51 is suctioned by the suction and release device 52.
[0036] To achieve the aforementioned technical effects, the intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment, such as... Figures 1-5 As shown, the attraction and release device 52 is an electromagnet or an electric push rod. In this embodiment, the attraction and release device 52 uses an electromagnet that attracts to the attraction plate 51 after being energized. After the power is turned off, the blocking module 30 falls rapidly, thereby blocking the intelligent driving vehicle environmental perception sensor 100 in this embodiment.
[0037] To achieve the aforementioned technical effects, the intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment, such as... Figures 1-5 As shown, the control and acquisition unit 60 also includes: A photoelectric sensor 61 is fixed on the base bracket 10; the photoelectric sensor 61 senses the baffle 32 during the falling process; The suction and release device 52 is electrically connected to the control and acquisition unit 60; the signal acquisition unit 62 acquires the time when the suction and release device 52 is released after power failure, and the first time; the photoelectric sensor 61 is electrically connected to the signal acquisition unit 62; the signal acquisition unit 62 acquires the time when the photoelectric sensor 61 senses the falling of the shield 32, i.e., the second time; the signal acquisition unit 62 acquires the time when the photoelectric sensor 61 senses the suction plate 51.
[0038] The signal acquisition unit 62 is electrically connected to the control unit 63; the control unit 63 is electrically connected to the vehicle environment perception sensor 100; the control unit receives and saves the time when the vehicle environment perception sensor 100 senses the obstruction, i.e., the third time; the signal acquisition unit 62 transmits and saves the first time and the second time to the control unit 63; the control unit 63 analyzes and calculates the difference relationship between the first time, the second time and the second time, and tests the reaction speed of the vehicle environment perception sensor 100.
[0039] To achieve the aforementioned technical effects, the intelligent driving vehicle environmental perception sensor occlusion testing device in this embodiment, such as... Figures 1-5 As shown, the control unit 63 is a host computer that communicates with the signal acquisition unit 62 and the control unit 63 via wireless communication. Users can remotely control and test the signal acquisition unit through software installed on the host computer.
[0040] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.
Claims
1. A device for testing the occlusion of environmental perception sensors in intelligent driving vehicles; characterized in that, include: Base stand; The base bracket is installed at the bottom of the intelligent driving vehicle environmental perception sensor occlusion test device. A shielding module bracket is located above the base bracket, and one side of the shielding module bracket is movably connected to the base bracket. Obstruction module; The shielding module is movably connected to one side of the shielding module bracket; A movable connecting device is movably connected to one end of the movable connecting device on one side of the shielding module bracket; the other end of the movable connecting device is movably connected to the base bracket. A shielding release device is provided between the base bracket and the shielding module bracket; A control and acquisition unit is electrically connected to the occlusion release device; the control and acquisition unit controls the occlusion release device to quickly release the occlusion module bracket and the occlusion module to quickly block the vehicle environment perception sensor; and records the time of occlusion and analyzes the sensitivity of the vehicle environment perception sensor to occlusion.
2. The intelligent driving vehicle environmental perception sensor occlusion testing device according to claim 1, characterized in that, The environmental perception sensor includes: a camera, a lidar, a millimeter-wave radar, an ultrasonic radar, an angular radar, and a blind spot radar; one side of the occlusion module bracket is movably connected to the base bracket via a spring hinge.
3. The intelligent driving vehicle environmental perception sensor occlusion testing device according to claim 1, characterized in that, The base support also includes: Base plate; the base plate is fixed below the base bracket; A number of vacuum suction cups are movably connected below the base plate; the position of the base plate can be adjusted by adjusting the position of the vacuum suction cups. Vertical slide rail; one end of the vertical slide rail is fixed on both sides of the base plate; a first slide groove is formed on the vertical slide rail; A crossbar is movably connected to the other end of the vertical slide rail within the first slide groove via an adjusting bolt; a first opening is formed on one side of the crossbar; one end of the movable connecting device is movably connected within the first opening.
4. The intelligent driving vehicle environmental perception sensor occlusion testing device according to claim 1, characterized in that, The shielding module bracket also includes: A connecting bracket is movably connected to one end of the base bracket via a spring hinge on the base plate; A second slide groove is formed on one end of the connecting bracket; one end of the movable connecting device is movably connected within the second slide groove. An adjusting rod is movably connected to one end of the adjusting rod within the second sliding groove; the other end of the adjusting rod is movably connected to one side of the shielding module.
5. The intelligent driving vehicle environmental perception sensor occlusion testing device according to claim 1, characterized in that, The shading module further includes: The movable mounting strip has one end of the adjusting rod of the shielding module bracket movably connected to a third sliding groove provided on the movable mounting strip; one end of the movable mounting strip is movably connected to a second sliding groove of the shielding module bracket. A shielding plate is fixed above the movable mounting strip; the shielding plate is made of different materials and sizes.
6. The intelligent driving vehicle environmental perception sensor occlusion testing device according to claim 1, characterized in that, The movable connection device further includes: The first connecting rod is movably connected to one end of the first connecting rod on the first sliding groove opened in the base bracket; The second connecting rod has one end of the first connecting rod movably connected to one end of the second connecting rod; the other end of the second connecting rod is movably connected to the second sliding groove on the shielding module bracket.
7. The intelligent driving vehicle environmental perception sensor occlusion testing device according to claim 1, characterized in that, The shielding release device further includes: A suction plate is fixedly connected to one end of the suction plate at the middle of the lower part of the shielding module bracket; A suction and release device is fixed above the base bracket; the suction and release device suctions the suction plate; the suction and release device is electrically connected to the control and acquisition unit. The control and acquisition unit controls the suction and release of the suction and release device and acquires the release time of the suction and release device, i.e., the first time.
8. The intelligent driving vehicle environmental perception sensor occlusion testing device according to claim 7, characterized in that, The attraction and release device is an electromagnet or an electric push rod.
9. The intelligent driving vehicle environmental perception sensor occlusion testing device according to claim 1, characterized in that, The control and acquisition unit further includes: A photoelectric sensor is fixed on the base bracket; the photoelectric sensor senses the baffle plate during the falling process. A signal acquisition device is provided, wherein the photoelectric sensor is electrically connected to the signal acquisition device; the signal acquisition device acquires the time during which the photoelectric sensor senses the falling of the barrier plate, i.e., the second time. The control unit is electrically connected to the signal acquisition unit; the control unit is electrically connected to the vehicle environment perception sensor or the vehicle controller; the control unit receives and saves the time when the vehicle environment perception sensor senses that it is blocked, i.e., the third time; the signal acquisition unit transmits and saves the first time to the control unit; the control unit analyzes and calculates the difference relationship between the first time, the second time and the third time, and tests the reaction speed of the vehicle environment perception sensor.
10. The intelligent driving vehicle environmental perception sensor occlusion testing device according to claim 9, characterized in that, The control unit is a host computer that communicates with the signal acquisition device and the control unit via wireless or wired communication. Users can remotely control and test the device through software installed on the host computer.