Optical radar test system

Abstract

An optical radar test system comprises a cavity, two arc-shaped slide rails, an environment control device, a ground structure, an erection platform, a slide rail system and a test target object. The arc-shaped sliding rail is located in the cavity. The environment control device is hung between the two arc-shaped sliding rails through a bearing and is provided with a plurality of scene control modules. The ground structure is located in the cavity and located between the two arc-shaped sliding rails and below the environment control device. The erection platform is located at a first endpoint of a midline of the ground structure and is configured to erect an optical radar. The sliding rail system is located above the center line of the ground structure and is horizontally arranged. A test target object is arranged on the slide rail system. The optical radar test system comprises a plurality of scene control modules, so that the performance of the vehicle-mounted radar on different test targets under different weather conditions can be simulated in the same cavity, a large amount of data feedback can be obtained in a short time, and the research and development speed is improved.

Description

Technical Field

[0001] This disclosure relates to an optical radar testing system, and more particularly to an optical radar testing system applicable to lidar, millimeter-wave radar, and camera radar. Background Technology

[0002] In the current automotive field, the importance of vehicle-mounted radar is increasing, making its safety performance paramount. Safety testing of vehicle-mounted radar is therefore crucial. However, currently, the industry lacks a standardized method for testing the performance of vehicle-mounted radar under various environmental conditions. Summary of the Invention

[0003] The technical specification disclosed herein is an optical radar testing system.

[0004] According to one embodiment of this disclosure, an optical radar testing system includes a cavity, two arc-shaped slide rails, an environmental control device, a ground structure, a mounting platform, a slide rail system, and a test target. The arc-shaped slide rails are located within the cavity. The environmental control device is suspended between the two arc-shaped slide rails via bearings and has multiple scene control modules. The environmental control device is formed by multiple interconnected grids, with the multiple scene control modules arranged on the horizontal or vertical beams of each of the grids. The ground structure is located within the cavity, between the two arc-shaped slide rails, and below the environmental control device, configured to collect rainwater and dust generated by the multiple scene control modules of the environmental control device. The mounting platform is located at the first endpoint of the centerline of the ground structure and is configured to mount the optical radar. The slide rail system is located above the centerline of the ground structure and is horizontally arranged. The test target is mounted on the slide rail system.

[0005] In one embodiment of this disclosure, the first top surface of the ground structure forms an acute angle with the horizontal plane, and the ground structure also has a second top surface adjacent to the first top surface, with an obtuse angle between the first top surface and the second top surface.

[0006] In one embodiment of this disclosure, the plurality of scene control modules include a lighting module, a temperature module, a humidity module, a dust module, a fogging module, a rainfall module, and a snowfall module.

[0007] In one embodiment of this disclosure, the slide rail system includes a first slide rail, a second slide rail, and a third slide rail. The first slide rail is located above the centerline of the ground structure and is horizontally arranged. The second slide rail is horizontally mounted on the first slide rail and is perpendicular to the first slide rail. The second slide rail is configured to slide along the first slide rail in a front-back direction. The third slide rail is vertically mounted on the second slide rail and is configured to slide along the second slide rail in a left-right direction, and the test target is configured to slide along the third slide rail in a vertical direction.

[0008] In one embodiment of this disclosure, the mounting platform is configured to slide on a first slide rail.

[0009] In one embodiment of this disclosure, the mounting platform is configured to change the height, tilt angle, and horizontal angle of the optical radar.

[0010] In one embodiment of this disclosure, the erection platform includes a jig platform and a multi-dimensional adjustment mechanism.

[0011] In one embodiment of this disclosure, the optical radar testing system further includes a clamping member. The clamping member is located between the mounting platform and the test target, and is configured to clamp the glass.

[0012] Another technical aspect disclosed herein is an optical radar testing system.

[0013] According to one embodiment of this disclosure, an optical radar testing system includes a cavity, two arc-shaped slide rails, an environmental control device, and a ground structure. The arc-shaped slide rails are located within the cavity. The environmental control device is slidably suspended between the two arc-shaped slide rails and has multiple scene control modules. The environmental control device is formed by a mesh of multiple grids, and the multiple scene control modules are arranged on the horizontal or vertical beams of each of the multiple grids. The multiple scene control modules include a lighting module, a temperature module, a humidity module, a dust module, a fogging module, a rain module, and a snowfall module. The ground structure is located within the cavity, between the two arc-shaped slide rails, and below the environmental control device, and is configured to collect rainwater and dust generated by the multiple scene control modules of the environmental control device.

[0014] Another technical aspect disclosed herein is an optical radar testing system.

[0015] According to one embodiment of this disclosure, an optical radar testing system includes a cavity, a ground structure, a mounting platform, a slide rail system, and a test target. The ground structure is located within the cavity and has a first top surface, wherein the first top surface forms an acute angle with a horizontal plane. The mounting platform is located at a first end of the centerline of the ground structure and is configured to mount the optical radar. The slide rail system is located above the centerline of the ground structure and is horizontally arranged. The test target is mounted on the slide rail system, wherein the test target includes a dummy, a test plate, and a test vehicle.

[0016] In the above-described embodiments disclosed herein, since the optical radar testing system includes multiple scene control modules, it can simulate the performance of vehicle-mounted radar on different test targets under different weather conditions within the same cavity, thereby obtaining a large amount of data feedback in a short time and improving the speed of research and development. Attached Figure Description

[0017] The nature of this disclosure can be best understood by reading it in conjunction with the accompanying illustrations and by the embodiments described below. Note that, according to standard practice in the industry, the various features are not drawn to scale. In fact, the dimensions of the various features may be increased or decreased arbitrarily for clarity of explanation.

[0018] Figure 1 A side view of an optical radar test system according to an embodiment of this disclosure is shown;

[0019] Figure 2 Draw Figure 1 A three-dimensional view of the optical radar testing system;

[0020] Figure 3 Draw Figure 1 A bottom view of the environmental control device of the optical radar test system;

[0021] Figure 4 Draw Figure 1 A three-dimensional view of the ground structure of the optical radar testing system;

[0022] Figure 5 Draw Figure 1 A side view of the ground structure of the optical radar test system along the first direction;

[0023] Figure 6 Draw Figure 1 A side view of the ground structure of the optical radar test system along the second direction;

[0024] Figure 7 Draw Figure 1 A three-dimensional diagram of the slide rail system of the optical radar testing system;

[0025] Figure 8 Draw Figure 1 A three-dimensional diagram of the mounting platform for the optical radar testing system and the optical radar itself;

[0026] Figure 9 A side view of an optical radar test system according to another embodiment of this disclosure is shown.

[0027] [Symbol Explanation]

[0028] 100: Optical Radar Testing System

[0029] 110: Cavity

[0030] 120: Curved slide rail

[0031] 130: Environmental control device

[0032] 132: Scene Control Module

[0033] 132a: Lighting Module

[0034] 132b: Snowfall Module

[0035] 132c: Rainfall Module

[0036] 132d: Fogging module

[0037] 132e: Dust Module

[0038] 132f: Temperature module, humidity module

[0039] 134: Bearing

[0040] 136: Grid

[0041] 140: Ground Structure

[0042] 142: First Top Surface

[0043] 144: Second Top Surface

[0044] 146: First endpoint

[0045] 150: Platform setup

[0046] 160: Slide rail system

[0047] 162: First slide rail

[0048] 163: Roller

[0049] 164: Second slide rail

[0050] 165: Roller

[0051] 166: Third slide rail

[0052] 170: Test target object

[0053] 180: Clamping component

[0054] 182: Glass

[0055] 200: Optical Radar

[0056] D1: First Direction

[0057] D2: Second Direction

[0058] H: Horizontal plane

[0059] L1, L2: Distance

[0060] θ1: Acute angle

[0061] θ2: obtuse angle

[0062] θ3: included angle Detailed Implementation

[0063] The following description of embodiments provides many different implementations, or examples, for carrying out various features of the provided object. Specific examples of elements and arrangements are described below to simplify the subject matter. Of course, these examples are merely illustrative and are not intended to be limiting. Furthermore, element symbols and / or letters may be repeated in various examples. This repetition is for simplicity and clarity and does not in itself specify the relationship between the various embodiments and / or configurations discussed.

[0064] Spatial relative terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for descriptive purposes to describe the relationship between one element or feature and another, as shown in the accompanying drawings. Spatial relative terms are intended to cover different orientations of the apparatus in use or operation other than those shown in the accompanying drawings. The apparatus may be oriented in other ways (rotated 90 degrees or otherwise), and the spatial relative descriptors used herein shall be interpreted accordingly.

[0065] Figure 1 A side view of an optical radar testing system 100 according to an embodiment of this disclosure is shown. Figure 2 A perspective view of an optical radar testing system 100 according to an embodiment of this disclosure is shown. (Refer to...) Figure 1 and Figure 2The optical radar testing system 100 includes a cavity 110, two arc-shaped slide rails 120, an environmental control device 130, a ground structure 140, a mounting platform 150, a slide rail system 160, and a test target 170. The arc-shaped slide rails 120 are located within the cavity 110. The cavity 110 can function as a darkroom (with adjustable illumination), isolating external environmental interference and allowing for more precise scene parameter settings. The environmental control device 130 is suspended between the two arc-shaped slide rails 120 via bearings 134 and has multiple scene control modules 132. The environmental control device 130 is formed by a mesh connection of multiple grid-like structures 136 (e.g., spliced ​​together), with the multiple scene control modules 132 arranged on the horizontal or vertical beams of each of the multiple grid-like structures 136. Each of the plurality of scene control modules 132 may be evenly distributed relative to the center of the environmental control device 130, or installed in a specific area of ​​the environmental control device 130 (e.g., concentrated in the left, central, or right area of ​​the environmental control device 130) depending on the function of the scene control modules 132, as required by the design. In this embodiment, the grid 136 is modular and detachable, thereby allowing the number of scene control modules 132 to be expanded or reduced to adjust the size of the environmental control device 130. The environmental control device 130 can slide down along the arc-shaped slide rail 120, facilitating the maintenance and replacement of the scene control modules 132 on the environmental control device 130.

[0066] Ground structure 140 is located within cavity 110 and between the two arc-shaped slide rails 120 and below environmental control device 130, configured to collect rainwater and dust generated by the plurality of scene control modules 132 of environmental control device 130. Erection platform 150 is located at the first end point 146 of ground structure 140 and configured to mount optical radar 200. Slide rail system 160 is located above the centerline of ground structure 140 and is horizontally arranged. Test target 170 is mounted on slide rail system 160.

[0067] Figure 3 Draw Figure 1 The lower view of the environmental control device 130 of the optical radar test system 100. (Refer to...) Figure 3 The scene control module 132 includes a lighting module 132a, a snowfall module 132b, a rainfall module 132c, a fogging module 132d, a dust module 132e, and a temperature or humidity module 132f. The lighting module 132a may be, for example, a halogen lamp, configured to simulate different levels of illumination (e.g., turning on the halogen lamp to simulate daytime and turning it off to simulate nighttime). In some embodiments, the lighting module 132a can adjust its brightness to simulate different environmental conditions, as shown in Table 1.

[0068] Scene Ambient illuminance (lux) Night 0.001～0.02 Moonlit night 0.02～0.3 Indoors on cloudy days 5～50 cloudy outdoor 50～500 Sunny indoor 100～1000 Scene 6 (Sunny day, outdoors) 2000 Scene 7 (Sunny day, outdoors) 4000

[0069] Table 1

[0070] In some embodiments, the illumination module 132a may also be, for example, a single-wavelength LED light source, the wavelength of which may be, for example, 865 nm, 905 nm, or 1550 nm. The single-wavelength LED light source can be designed to work in conjunction with the optical radar 200 to be tested (see [reference]). Figure 1 The wavelengths emitted are the same, which is used to test the optical radar 200 (see reference). Figure 1 The attenuation of photoelectromagnetic properties when interfered with by a light source of the same wavelength.

[0071] The snowfall module 132b, for example, can be a snow machine that simulates seven snow conditions. The corresponding 12-hour precipitation for each of the seven snow conditions is shown in Table 2.

[0072] Snowing 12-hour precipitation Light snowfall Less than 0.1 mm Light Snow 0.1–0.9 mm Moderate snow 1.0–2.9 mm heavy snow 3.0–5.9 mm Blizzard 6.0–9.9 mm Blizzard 10.0–14.9 mm Massive blizzard Reaching or exceeding 15 millimeters

[0073] Table 2

[0074] The rainfall module 132c, for example, can be a sprinkler and can simulate six different levels of rainfall. The corresponding 24-hour rainfall amounts for the six rainfall scenarios are shown in Table 3.

[0075]

[0076]

[0077] Table 3

[0078] The fogging module 132d can be, for example, a smog generator, which can be an electrically heated steam generator, but this disclosure is not limited to this. The fogging module 132d can simulate five different levels of fogging, as shown in Table 4 according to horizontal visibility:

[0079] grade Horizontal visibility Light mist 1 to 10 kilometers fog Less than 1 kilometer Dense fog 200-500 meters Dense fog 50-200 meters Dense fog Less than 50 meters

[0080] Table 4

[0081] The dust module 132e can be, for example, a sandblasting machine, and can simulate five different dust levels, as shown in Table 5:

[0082] grade Total dust concentration Level I <![CDATA[Total dust concentration < 3mg / m 3 > Level II <![CDATA[3 < total dust concentration < 10 mg / m 3 > Level III <![CDATA[10 < total dust concentration < 50mg / m 3 > Level IV <![CDATA[50 < Total dust concentration < 100mg / m 3 > Level V <![CDATA[Total dust concentration ≥ 100mg / m 3 >

[0083] Table 5

[0084] The temperature module 132f is located on the environmental control device 130 and can simulate ambient temperatures from 5 degrees Celsius to 50 degrees Celsius. In some embodiments, the temperature module 132f does not need to be located on the environmental control device 130, but can be located on the cavity 110 of the optical radar test system 100. The humidity module 132f is located on the environmental control device 130 and can simulate relative humidity from 50 percent to 95 percent. In some embodiments, the humidity module 132f does not need to be located on the environmental control device 130, but can be located on the cavity 110 of the optical radar test system 100.

[0085] The aforementioned illumination module 132a, snowfall module 132b, rainfall module 132c, fogging module 132d, dust module 132e, and temperature or humidity module 132f can be used as an optical radar 200 (see reference). Figure 1 ) Variable environmental parameters during testing, allowing testers to set the required environmental parameters.

[0086] Figure 4 Draw Figure 1 A three-dimensional view of the ground structure 140 of the optical radar test system 100. Figure 5 Draw Figure 1 A side view of the ground structure 140 of the optical radar test system 100 along the first direction D1.

[0087] Figure 6 Draw Figure 1 A side view of the ground structure 140 of the optical radar test system 100 along the second direction D2. (Refer to...) Figures 4 to 6 The ground structure 140 has a first top surface 142, which forms an acute angle θ1 with the horizontal plane H. The ground structure 140 has a smooth surface, offering advantages such as easy recycling, non-stickiness, easy cleaning, and no dirt buildup. Its material can be, for example, stainless steel, or other low-cost materials that provide support without deformation and a smooth surface. Furthermore, the ground structure 140 also has a second top surface 144 adjacent to the first top surface 142, with an obtuse angle θ2 between the first top surface 142 and the second top surface 144. This design allows the ground structure 140 to have two lowest corners, enabling it to collect dust falling from the scene control module 132 above (e.g., snow from the snow module 132b, rainwater from the rain module 132c, dust from the dust module 132e, etc.) and discharge this rainwater and dust in a concentrated manner.

[0088] Figure 7 Draw Figure 1 A perspective view of the slide rail system 160 of the optical radar test system 100. (Refer to...) Figure 1 and Figure 7The slide rail system 160 includes a first slide rail 162, a second slide rail 164, and a third slide rail 166. The first slide rail 162 is located above the centerline of the ground structure 140 and is horizontally arranged. The second slide rail 164 is horizontally mounted on the first slide rail 162 and is perpendicular to the first slide rail 162. Furthermore, the second slide rail 164...

[0089] The distance L1 between the test target 170 and the mounting platform 150 can be varied, for example, it can be 3 meters, 5 meters, 8 meters, 10 meters, 12 meters, 15 meters, or 20 meters. The third slide rail 166 is vertically mounted on the second slide rail 164 and configured to mount the test target 170. In this embodiment, the third slide rail 166 can slide on the second slide rail 164 (in the left-right direction) using rollers 165, and the second slide rail 164 can slide along the first slide rail 162 with the third slide rail 166 attached by rollers 163 (in the front-back direction). Furthermore, the test target 170 can slide on the third slide rail 166 (in the up-down direction). Through the above design, three-dimensional testing conditions can be achieved. The test target 170 can include a test dummy or a test plate. The test plate can have the same reflectivity or different reflectivities in different areas, but this disclosure is not limited to these limitations. In some embodiments, if the test target 170 is large (e.g., when the test target 170 is a black test vehicle or a black test locomotive), it may not be mounted on the third slide rail 166, but may be laid flat on the ground. The test target 170 is positioned to reflect the optical radar 200, thereby testing the attenuation effect of the optical radar 200's photomagnetic characteristics.

[0090] Figure 8 Draw Figure 1 A three-dimensional view of the mounting platform 150 of the optical radar test system 100 and the optical radar 200. (Refer to...) Figure 8 The erection platform 150 includes a jig table. In one embodiment, the erection platform 150 can... Figure 7 It slides on the first slide rail 162. Figure 8 The illustrations are for illustrative purposes only and do not affect the implementation of this disclosure. In practical applications, the platform 150 may include multi-dimensional adjustment mechanisms, such as robotic arms or mechanical mechanisms (e.g.,...). Figure 8 (As shown) or electrically controlled (such as a six-dimensional electric turntable). The mounting platform 150 is configured to change the height, tilt angle, and horizontal angle of the optical radar 200 so that the light emitted by the optical radar 200 can accurately hit the test target 170 (see figure). Figure 1 And reflect it back to the optical radar 200.

[0091] Figure 9 A side view of an optical radar testing system 100a according to another embodiment of this disclosure is shown. (Refer to...) Figure 9 This implementation method is the same as Figure 1 The difference in implementation lies in that, in this embodiment, the optical radar testing system 100a further includes a clamping member 180. The clamping member 180 is located between the mounting platform 150 and the test target 170, and is configured to clamp a glass 182. The glass 182 can simulate the situation where the optical radar 200 is located inside the windshield of a vehicle. In this case, due to the medium separating them, the light emitted by the optical radar 200 will be deflected, resulting in a different image after reflection. This design can simulate the situation where the optical radar 200 is used as an in-vehicle radar. Furthermore, the distance L2 between the clamping member 180 and the mounting platform 150 can be adjusted, and the angle θ3 between the glass 182 and the clamping member 180 can also be adjusted to simulate the windshields of different vehicle types.

[0092] Because the optical radar testing system contains multiple scene control modules, it can simulate the performance of vehicle-mounted radar on different test targets under different weather conditions within the same cavity, thereby obtaining a large amount of data feedback in a short time and improving the speed of research and development.

[0093] The foregoing outlines the features of several embodiments to enable those skilled in the art to better understand the nature of this disclosure. Those skilled in the art should understand that they can readily use this disclosure as the basis for designing or modifying other processes and structures to achieve the same purposes and / or advantages as the embodiments described herein. Those skilled in the art should also recognize that such equivalent constructions do not depart from the spirit and scope of this disclosure, and that various changes, substitutions, and alterations can be made to them without departing from the spirit and scope of this disclosure.

Claims

1. An optical radar testing system, characterized in that, Include: One cavity; Two arc-shaped slide rails are located inside the cavity; An environmental control device is suspended between two arc-shaped slide rails by a bearing and has multiple scene control modules. The environmental control device is formed by multiple grids connected in a mesh, and the multiple scene control modules are arranged on the horizontal or vertical beams of each of the multiple grids. A ground structure is located inside the cavity and between the two arc-shaped slide rails and below the environmental control device, configured to collect rainwater and dust generated by the multiple scene control modules of the environmental control device; A platform is located at a first end of the centerline of the ground structure and is configured to mount an optical radar. A sliding rail system is located above the centerline of the ground structure and is horizontally arranged; A test target is mounted on the slide rail system.

2. The optical radar testing system as described in claim 1, characterized in that, The ground structure has a first top surface that forms an acute angle with a horizontal plane, and the ground structure also has a second top surface adjacent to the first top surface, with an obtuse angle between the first top surface and the second top surface.

3. The optical radar testing system as described in claim 1, characterized in that, The multiple scene control modules include a lighting module, a temperature module, a humidity module, a dust module, a fogging module, a rainfall module, and a snowfall module.

4. The optical radar testing system as described in claim 1, characterized in that, The slide rail system includes: A first slide rail is located above the centerline of the ground structure and is horizontally arranged; A second slide rail is horizontally mounted on the first slide rail and perpendicular to the first slide rail, configured to slide along the front-back direction on the first slide rail; as well as A third slide rail is vertically mounted on the second slide rail and configured to slide on the second slide rail in a left-right direction, and the test target is configured to slide on the third slide rail in a up-down direction.

5. The optical radar testing system as described in claim 4, characterized in that, The erection platform is configured to slide on the first slide rail.

6. The optical radar testing system as described in claim 1, characterized in that, The mounting platform is configured to change the height, tilt angle, and horizontal angle of the optical radar.

7. The optical radar testing system as described in claim 1, characterized in that, The erection platform includes a jig platform and a multi-dimensional adjustment mechanism.

8. The optical radar testing system as described in claim 1, characterized in that, Also includes: A clamping element is located between the erection platform and the test target, and is configured to clamp a piece of glass.

9. An optical radar testing system, characterized in that, Include: One cavity; Two arc-shaped slide rails are located inside the cavity; An environmental control device, slidably suspended between two arc-shaped slide rails, includes multiple scene control modules. The environmental control device is formed by a grid of interconnected grids, with the scene control modules arranged on the horizontal or vertical beams of each grid. These scene control modules include modules for lighting, temperature, humidity, dust, fogging, rainfall, and snowfall. A ground structure is located within the cavity and between the two arc-shaped slide rails and below the environmental control device, configured to collect rainwater and dust generated by the multiple scene control modules of the environmental control device.

10. An optical radar testing system, characterized in that, Include: One cavity; A ground structure is located within the cavity and has a first top surface, wherein the first top surface forms an acute angle with a horizontal plane; A platform is located at a first end of the centerline of the ground structure and is configured to mount an optical radar. A sliding rail system is located above the centerline of the ground structure and is horizontally arranged; A test target is mounted on the slide rail system, wherein the test target includes a dummy, a test board, and a test vehicle.

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