A road sign projection device for ADAS test scene simulation

Abstract

The utility model relates to road sign technical field, and disclose a kind of road sign projection device for ADAS test scene simulation, the road sign projection device for ADAS test scene simulation, including base, fixed mounting has bottom plate on the base, adjusting assembly is provided on the base, and the adjusting assembly includes round plate.The road sign projection device for ADAS test scene simulation, in order to make the device satisfy the simulation demand of diversification road scene in ADAS test, by being provided with adjusting assembly, when needing to adjust projector height, motor drives screw rod rotation, by the screw thread cooperation of threaded column and slide cylinder, realize the vertical lifting of slide cylinder along square cylinder, when needing to rotate projection direction, hydraulic device pushes slider to ascend along cylinder, make the limiting block on slider embed in the limiting slot of round block, when motor drives limiting block rotation, by the engagement transmission of limiting block and limiting slot to round block, and then drive round plate synchronous rotation, realize the horizontal direction adjustment of projector.

Description

Technical Field

[0001] This utility model relates to the field of road sign technology, specifically a road sign projection device for simulating ADAS test scenarios. Background Technology

[0002] In the research and development and testing of ADAS, it is necessary to simulate various complex road scenarios to verify the system's ability to recognize and respond to elements such as traffic signs and lane lines.

[0003] The ADAS test scenario simulation road sign projection device mainly consists of a projector host, an image generation system, a positioning and calibration module, an environmental perception module, and a central control system. The projector host uses a high-brightness, high-resolution projector to ensure clear and accurate projection of road signs; the image generation system, based on virtual scene modeling technology, can generate various road signs and scene images; the positioning and calibration module uses LiDAR or GPS positioning to accurately match the projection position with the test vehicle's driving route; the environmental perception module monitors environmental parameters such as light and weather at the test site in real time; and the central control system integrates data from all modules and coordinates the device's operation.

[0004] However, in actual use, the projector height adjustment of traditional projection devices often relies on manual knobs or fixed brackets, which is cumbersome and has low precision. It is difficult to quickly adapt to the installation height of cameras on different test vehicles, resulting in long test preparation time and low efficiency. Furthermore, the method of adjusting the projection direction is limited, allowing only small-angle manual rotation and failing to achieve 360° omnidirectional horizontal rotation. This makes it difficult to simulate diverse road sign projection scenarios and restricts the comprehensiveness of ADAS testing. In view of this, we propose a road sign projection device for simulating ADAS test scenarios. Utility Model Content

[0005] The purpose of this invention is to provide a road sign projection device for simulating ADAS test scenarios, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A road sign projection device for simulating ADAS test scenarios includes a base, on which a base plate is fixedly mounted, and an adjustment component is provided on the base. The adjustment component includes:

[0008] A circular plate is rotatably mounted on the base plate. A square tube is fixedly mounted above the circular plate. A control panel is fixedly mounted on the square tube. A sliding cylinder is slidably mounted on the square tube. A projection plate is fixedly mounted on the sliding cylinder. A projector is fixedly mounted on the sliding cylinder.

[0009] A circular ring is rotatably mounted inside the base. A hydraulic device is fixedly mounted on the circular ring. A slider is fixedly mounted on the piston end of the hydraulic device. A cylinder is fixedly mounted on the bottom of the circular plate. A motor is fixedly mounted inside the base. A screw is fixedly mounted on the output end of the motor.

[0010] A threaded column is fixedly installed inside the slide cylinder. A limit block is fixedly installed at the motor output end. One end of a spring is fixedly installed on the slider. A round block is fixedly installed at the other end of the spring. A limit groove is opened on the slider. A limit strip is fixedly installed on the round block. A limit slot is opened on the round block.

[0011] In a further embodiment, the hydraulic device, cylinder, spring, limiting groove and limiting strip are provided in multiple sets, and the slider is slidably mounted on multiple sets of cylinders.

[0012] In a further embodiment, the screw is threaded onto a threaded post, the ring and hydraulic device are positioned below the slider, and multiple sets of the limiting strips slide within multiple sets of limiting grooves.

[0013] In a further embodiment, the limiting block is positioned above the limiting groove, and the cross-section of the limiting block is the same size and shape as the cross-section of the limiting groove. The upper end of the limiting groove on the circular block is designed with rounded corners.

[0014] In a further embodiment, the base is provided with an auxiliary component, which includes a mounting groove. The cylinder has a mounting groove, and one end of a helical spring is fixedly installed inside the cylinder. The other end of the helical spring is fixedly installed with one end of a mounting column. The other end of the mounting column is fixedly installed with a hinge block, and a rubber ball is hingedly installed on the hinge block.

[0015] In a further embodiment, multiple sets of the mounting groove, helical spring, mounting column, hinge block, and rubber ball are provided.

[0016] In a further embodiment, the helical spring is disposed inside the mounting groove, and the mounting post slides inside the mounting groove.

[0017] Compared with the prior art, this utility model provides a road sign projection device for simulating ADAS test scenarios, which has the following beneficial effects:

[0018] 1. This ADAS test scenario simulation road sign projection device is equipped with an adjustment component to meet the diverse road scenario simulation requirements in ADAS testing. When the projector height needs to be adjusted, the motor drives the screw to rotate. Through the threaded engagement between the threaded column and the slide cylinder, the slide cylinder can be vertically raised and lowered along the square cylinder, allowing precise control of the projector height to match the camera installation height of different test vehicles. When the projection direction needs to be rotated, the hydraulic device pushes the slider to rise along the cylinder, causing the limit block on the slider to engage with the limit groove of the circular block. At this time, when the motor drives the limit block to rotate, the engagement between the limit block and the limit groove transmits the rotation to the circular block, thereby driving the circular plate to rotate synchronously, achieving horizontal adjustment of the projector.

[0019] 2. This ADAS test scenario simulation road sign projection device, in order to improve the reliability of the device in dynamic test environments, is equipped with an auxiliary component. This component, together with a helical spring, pushes a hinge block through a mounting column, keeping the rubber ball in constant contact with the inner wall of the base, forming an elastic buffer layer. When the circular plate rotates or the slide cylinder rises and falls, the rolling friction of the rubber ball replaces the traditional rigid contact, reducing mechanical noise and absorbing vibrations during the adjustment process, preventing the image from shifting due to projector shaking. The hinge design of the rubber ball allows it to automatically adjust the contact angle according to the rotation direction of the cylinder, ensuring consistent buffering effect throughout the entire stroke range. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0022] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of part of the structure of this utility model;

[0024] Figure 5 This is a cross-sectional view of part of the structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the adjustment component of this utility model;

[0026] Figure 7 This utility model Figure 6 Enlarged structural diagram of region A in the middle;

[0027] Figure 8 This is a cross-sectional schematic diagram of the circular plate structure of the adjustment component of this utility model;

[0028] Figure 9This is a cross-sectional schematic diagram of a portion of the adjustment component of this utility model;

[0029] Figure 10 This is a cross-sectional view of the slider structure of this utility model.

[0030] Explanation of icon numbers:

[0031] 1. Base; 2. Base plate;

[0032] 3. Adjustment assembly; 31. Circular plate; 32. Square tube; 33. Control panel; 34. Slide cylinder; 35. Projection board; 36. Projector; 37. Ring; 38. Hydraulic device; 39. Slider; 310. Cylinder; 311. Motor; 312. Screw; 313. Threaded column; 314. Limit block; 315. Spring; 316. Circular block; 317. Limiting groove; 318. Limiting strip; 319. Limiting slot;

[0033] 4. Auxiliary components; 41. Mounting slot; 42. Helical spring; 43. Mounting post; 44. Hinge block; 45. Rubber ball. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0036] Please see Figures 1-10 This utility model provides a technical solution:

[0037] A road sign projection device for simulating ADAS test scenarios includes a base 1, on which a base plate 2 is fixedly installed.

[0038] In one embodiment of this utility model, an adjustment component 3 is provided on the base 1. The adjustment component 3 includes a circular plate 31, which is rotatably mounted on the base plate 2. A square tube 32 is fixedly mounted above the circular plate 31. A control panel 33 is fixedly mounted on the square tube 32. A slide tube 34 is slidably mounted on the square tube 32. A projection plate 35 is fixedly mounted on the slide tube 34. A projector 36 is fixedly mounted on the slide tube 34. A circular ring 37 is rotatably mounted inside the base 1. A hydraulic device 38 is fixedly mounted on the circular ring 37. A slider 39 is fixedly mounted on the piston end of the hydraulic device 38. A cylinder 310 is fixedly mounted at the bottom of the circular plate 31. A motor 311 is fixedly mounted inside the base 1. A screw 312 is fixedly mounted on the output end of the motor 311. A threaded column 313 is fixedly mounted inside the slide tube 34. A limit block 314 is fixedly mounted on the output end of the motor 311. The slider 39... One end of a spring 315 is fixedly installed on the slider 39, and a circular block 316 is fixedly installed on the other end of the spring 315. A limit groove 317 is opened on the slider 39, a limit bar 318 is fixedly installed on the circular block 316, and a limit groove 319 is opened on the circular block 316. Multiple sets of hydraulic devices 38, cylinders 310, springs 315, limit grooves 317 and limit bars 318 are provided. The slider 39 is slidably installed on multiple sets of cylinders 310. The screw 312 is threadedly installed on the threaded column 313. The ring 37 and hydraulic devices 38 are located below the slider 39. Multiple sets of limit bars 318 slide inside multiple sets of limit grooves 317. A limit block 314 is located above the limit groove 319. The cross-section of the limit block 314 is the same size and shape as the cross-section of the limit groove 319. The upper end of the limit groove 319 opened on the circular block 316 adopts a rounded corner design.

[0039] In this embodiment, when the height of the projector 36 needs to be adjusted, the motor 311 starts, and the screw 312 at its output end begins to rotate. The screw 312 forms a threaded engagement with the threaded post 313 inside the slide cylinder 34, allowing the slide cylinder 34 to move vertically up and down along the square cylinder 32. Since the projector 36 is fixedly mounted on the slide cylinder 34, the lifting and lowering of the slide cylinder 34 drives the projector 36 to achieve height adjustment, thereby accurately matching different testing requirements. At the same time, if the projection direction of the projector 36 needs to be adjusted, the hydraulic device 38 starts to work. The piston end of the hydraulic device 38 pushes the slider 39 to rise along the cylinder 310. When the slider 39 rises to a certain position, the slider 39 engages with... The slider 39 is more easily inserted into the limiting groove 319 by the rounded corners at the upper end of the limiting groove 319. At the same time, the spring 315, the limiting slide 317 and the limiting bar 318 allow the circular block 316 to rotate to a certain extent, making it easier for the slider 39 to be inserted into the limiting groove 319. When the limiting block 314 on the slider 39 is inserted into the limiting groove 319 on the circular block 316, the motor 311 drives the limiting block 314 to rotate. Through the engagement of the limiting block 314 and the limiting groove 319, the rotational force is transmitted to the circular block 316, thereby driving the circular plate 31 connected to the circular block 316 to rotate synchronously, thereby adjusting the angle of the projector 36 in the horizontal direction.

[0040] In one embodiment of this utility model, an auxiliary component 4 is provided inside the base 1. The auxiliary component 4 includes a mounting groove 41. A mounting groove 41 is provided on a cylinder 310. One end of a helical spring 42 is fixedly installed inside the cylinder 310. One end of a mounting post 43 is fixedly installed on the other end of the helical spring 42. A hinge block 44 is fixedly installed on the other end of the mounting post 43. A rubber ball 45 is hingedly installed on the hinge block 44. Multiple sets of mounting groove 41, helical spring 42, mounting post 43, hinge block 44 and rubber ball 45 are provided. The helical spring 42 is located inside the mounting groove 41, and the mounting post 43 slides inside the mounting groove 41.

[0041] In this embodiment, during dynamic testing, the helical spring 42 on the cylinder 310 pushes the hinge block 44 through the mounting column 43, ensuring that the rubber ball 45 on the hinge block 44 always fits against the inner wall of the base 1. When the circular plate 31 rotates or the slide cylinder 34 rises or falls, the rolling friction of the rubber ball 45 replaces the traditional rigid contact. This not only reduces mechanical noise but also effectively absorbs vibrations generated during adjustment, preventing the projector 36 from shifting due to shaking. In addition, the hinge design of the rubber ball 45 allows it to automatically adjust the contact angle according to the rotation direction of the cylinder 310, ensuring that the buffering effect remains consistent throughout the operation of the device.

[0042] All electrical components mentioned in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the control panel 33, projector 36, hydraulic device 38, and motor 311. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0043] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A road sign projection device for simulating ADAS test scenarios, comprising a base (1), wherein a base plate (2) is fixedly mounted on the base (1), characterized in that: An adjustment component (3) is provided on the base (1), the adjustment component (3) including: A circular plate (31) is rotatably mounted on the base plate (2). A square tube (32) is fixedly mounted above the circular plate (31). A control panel (33) is fixedly mounted on the square tube (32). A slide tube (34) is slidably mounted on the square tube (32). A projection plate (35) is fixedly mounted on the slide tube (34). A projector (36) is fixedly mounted on the slide tube (34). A circular ring (37) is rotatably mounted inside the base (1). A hydraulic device (38) is fixedly mounted on the circular ring (37). A slider (39) is fixedly mounted on the piston end of the hydraulic device (38). A cylinder (310) is fixedly mounted on the bottom of the circular plate (31). A motor (311) is fixedly mounted inside the base (1). A screw (312) is fixedly mounted on the output end of the motor (311). A threaded column (313) is fixedly installed inside the slide cylinder (34). A limit block (314) is fixedly installed at the output end of the motor (311). One end of a spring (315) is fixedly installed on the slider (39). A round block (316) is fixedly installed at the other end of the spring (315). A limit groove (317) is opened on the slider (39). A limit strip (318) is fixedly installed on the round block (316). A limit groove (319) is opened on the round block (316).

2. The road sign projection device for simulating ADAS test scenarios according to claim 1, characterized in that: The hydraulic device (38), cylinder (310), spring (315), limiting groove (317) and limiting bar (318) are provided in multiple sets, and the slider (39) is slidably installed on multiple sets of cylinders (310).

3. The road sign projection device for simulating ADAS test scenarios according to claim 1, characterized in that: The screw (312) is threaded onto the threaded post (313), the ring (37) and the hydraulic device (38) are located below the slider (39), and multiple sets of the limiting strips (318) slide inside multiple sets of limiting grooves (317).

4. The road sign projection device for simulating ADAS test scenarios according to claim 1, characterized in that: The limiting block (314) is positioned above the limiting groove (319). The cross-section of the limiting block (314) is the same size and shape as the cross-section of the limiting groove (319). The upper end of the limiting groove (319) on the circular block (316) is designed with rounded corners.

5. The road sign projection device for simulating ADAS test scenarios according to claim 1, characterized in that: The base (1) is provided with an auxiliary component (4), which includes a mounting groove (41). The cylinder (310) is provided with a mounting groove (41). One end of a helical spring (42) is fixedly installed inside the cylinder (310). The other end of the helical spring (42) is fixedly installed with one end of a mounting post (43). The other end of the mounting post (43) is fixedly installed with a hinge block (44). A rubber ball (45) is hingedly installed on the hinge block (44).

6. The road sign projection device for simulating ADAS test scenarios according to claim 5, characterized in that: Multiple sets of mounting groove (41), helical spring (42), mounting column (43), hinge block (44) and rubber ball (45) are provided.

7. A road sign projection device for simulating ADAS test scenarios according to claim 5, characterized in that: The helical spring (42) is disposed inside the mounting groove (41), and the mounting post (43) slides inside the mounting groove (41).

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