An angle adjustable mounting base

Abstract

This utility model relates to the field of testing equipment technology and discloses an angle-adjustable mounting base, including a base; at least two slide rails are mounted on the base; at least one slider is slidably mounted on each slide rail; the bottom of the slider is provided with a sliding part adapted to the slide rail structure; the top surface of the sliding part is provided with an assembly part for connecting with an external target object; the slider is provided with a self-locking mechanism for positioning the slider on the slide rail. Two sliders located on the two slide rails are used as a group to assemble an external target object. The two slide rails are parallel to each other or arranged at a preset angle, so as to adjust the gait posture of the external target object by the relative displacement of the sliders on the slide rails. This solution utilizes the relative sliding freedom of the sliders on the slide rails to flexibly adjust the distance between the dummy's legs, stride angle, and body tilt, thereby simulating various real pedestrian postures such as walking, striding, and tilting.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to an angle-adjustable mounting base. Background Technology

[0002] In the testing scenarios of intelligent driving systems, dummy targets are often used to simulate pedestrians to verify the vehicle's automatic emergency braking (AEB) or pedestrian recognition functions.

[0003] Existing dummy targets are usually fixed to the test track or test site ground by a base. The installation method mostly adopts a three-point rigid support structure, that is, the dummy's legs are rigidly connected to three preset fixing points on the base by bolts or buckles.

[0004] However, because the positions and angles of these three fixed points are fixed during manufacturing, the dummy's leg postures (such as standing, walking, and squatting) cannot be adjusted, resulting in a single static posture. While this rigid installation structure provides a certain degree of stability, it severely lacks flexibility: on the one hand, it cannot quickly switch to meet the diverse requirements of testing standards (such as different versions of Euro NCAP and C-NCAP) for pedestrian postures; on the other hand, in simulation tests facing complex traffic scenarios (such as children crossing, elderly people walking slowly, and pedestrians suddenly darting across), a single posture is insufficient to realistically reproduce actual road risks, reducing the effectiveness and coverage of the test. Furthermore, each posture change requires redesigning or replacing the entire base device, which is not only costly and inefficient but also limits the versatility and scalability of the testing system, making it difficult to adapt to the needs of intelligent driving algorithm iterations for multi-dimensional, high-fidelity targets. Utility Model Content

[0005] The present invention aims to provide an angle-adjustable mounting base to achieve multi-degree-of-freedom gait simulation, and to solve the technical problem that the existing dummy target object fixing base structure is unreasonable and cannot meet the requirements of intelligent driving algorithm iteration for multi-dimensional and highly realistic target objects.

[0006] The basic solution provided by this utility model is: an angle-adjustable mounting base, including a base; At least two slide rails are installed on the base; At least one slider is slidably mounted on each slide rail; the bottom of the slider is provided with a sliding part adapted to the slide rail structure; the top surface of the sliding part is provided with an assembly part for connecting with an external target object; the slider is provided with a self-locking mechanism for positioning the slider on the slide rail.

[0007] The working principle and advantages of this utility model are as follows: This solution, through structural innovation in the mounting base of traditional dummy targets, breaks through the inherent limitations of existing technologies where the target posture is singular and unadjustable, significantly improving the realism and coverage of intelligent driving test scenarios.

[0008] This solution uses at least two parallel or pre-set angled slide rails on a base, and pairs of sliders to assemble a single external target (such as a pedestrian dummy). Utilizing the relative sliding freedom of the sliders on the rails, the distance between the dummy's legs, stride angle, and body tilt can be flexibly adjusted to simulate various realistic pedestrian postures such as walking, striding, and tilting. This provides high-fidelity, diverse static or quasi-dynamic target samples for testing active safety systems such as AEB and FCW. Parallel arrangement of two slide rails can simulate a pedestrian's symmetrical leg stance or parallel walking posture, suitable for standard gait testing. A pre-set angled arrangement more realistically reproduces complex leg postures such as diagonal strides, turns, or asymmetrical standing. Simultaneously, it supports multiple sets of sliders arranged collaboratively on slide rails with different angles, flexibly constructing high-density traffic scenarios such as multiple people walking side-by-side or crossing intersections, significantly improving the perception and response capabilities of intelligent driving systems to diverse target spatial distributions. The slider integrates a self-locking mechanism, allowing it to slide freely on the rail before locking. Once the posture is adjusted, the self-locking mechanism reliably locks the slider and rail, ensuring the slider's positioning on the rail and guaranteeing the overall stability and stability of the dummy target during testing. This balances adjustment flexibility with operational safety. Furthermore, the base employs a modular design, adapting to targets of different heights and gaits without requiring replacement of the entire device, offering high versatility and significantly reducing the repetitive investment cost of testing equipment. Compared to traditional solutions requiring multiple customized fixed-post bases, this solution achieves continuous posture adjustment using only a simple, low-cost rail-slider mechanism. This not only saves hardware costs but also greatly improves testing efficiency and the freedom of scenario construction, demonstrating significant engineering practical value and industry promotion potential. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of an angle-adjustable mounting base provided in an embodiment of the present utility model; Figure 2 for Figure 1 A partial schematic diagram at point A; Figure 3 This is a schematic diagram of the slider structure provided in an embodiment of the present utility model; Figure 4 A schematic diagram of the structure of the leg model of an existing external target object; Figure 5 This is a schematic diagram of the structure of an angle-adjustable mounting base for mounting an existing external target object, provided in an embodiment of the present invention. The markings in the accompanying drawings include: base 1, first groove 11, slide rail 2, second groove 21, slider 3, sliding part 31, protrusion 311, support part 312, third groove 313, assembly part 32, self-locking mechanism 33, handle part 331, threaded part 332, body assembly part 34, magnetic pressure block 4, built-in metal circular block 5, leg model 6, mounting component 7, fastener 8, dummy target object 9. Detailed Implementation

[0010] The following detailed explanation illustrates the specific implementation methods: The basic implementation examples are as follows: Figure 1 As shown: An angle-adjustable mounting base includes a base 1; At least two slide rails 2 are installed on the base 1; At least one slider 3 is slidably mounted on each slide rail 2; the bottom of the slider 3 is provided with a sliding part 31 adapted to the slide rail structure; the top surface of the sliding part 31 is provided with an assembly part 32 for connecting with an external target object; and the slider is provided with a self-locking mechanism 33.

[0011] Specifically: The external target is the dummy target 9 used in the intelligent driving system test scenario, which can be an adult dummy target or a child dummy target.

[0012] To better illustrate the direction, Figure 1 and Figure 2 The direction indicated by the arrow defines the length direction.

[0013] like Figure 1 As shown, in this embodiment, the base 1 has a plate-like structure, which can be a rectangle with rounded corners. Its thickness is 18-25mm, preferably 20mm, its length is 820-850mm, preferably 840mm, and its width is 420-450mm, or 440mm, which meets the requirement of stably supporting the dummy target. The base 1 has a first groove 11 that matches the bottom structure of the slide rail 2. When the slide rail 2 is installed, its bottom is located within the first groove 11 and does not interfere with the sliding of the slide rail 2 mounting slider 3, thus improving the installation stability of the slide rail 2.

[0014] In this embodiment, two magnetic suction components are symmetrically installed at both ends of the base 1. The two magnetic suction components and two slide rails 2 are symmetrically mounted on the base 1. Each magnetic suction component includes a magnetic pressing block 4 and two built-in metal circular blocks 5, which are magnetically attracted. The two magnetic suction components are used to mount a belt, which slides on the ground, causing the base to slide.

[0015] Two sliders 3 located on two slide rails 2 are used as a group to assemble an external target object 9. The two slide rails 2 are parallel to each other or arranged at a preset angle, so as to adjust the walking posture of the external target object 9 by the relative displacement of the sliders 3 on the slide rails 2.

[0016] In this embodiment, two slide rails 2 are installed and arranged in parallel. The slide rails 2 have a strip-like structure, and second grooves 21 extending along their length are provided on both sides of each slide rail 2, such as... Figure 2 As shown, the bottom of the second groove 21 has a chamfer, which allows the slider 3 to slide more smoothly on the slide rail 2. The slide rail 2 and the base 1 are provided with corresponding mounting holes, and the two are fixed relative to each other by fasteners 8 passing through the mounting holes of the slide rail 2 and the base 1.

[0017] In this embodiment, one slider 3 is installed on each of the two parallel slide rails 2, which can meet the assembly requirements of a dummy target. The distance between the slide rails 2 is 180-240mm, preferably within the range of 200mm, to adapt to the leg structure and height of a conventional dummy target. In other embodiments, multiple sliders 3 can be installed on each slide rail 2 to meet the requirements of assembling multiple dummy targets into a special arrangement.

[0018] In this embodiment, the slider 3 has the following structure: Figure 3 As shown. The sliding part 31 has a Π-shaped structure; the two inner sides of the Π-shaped part are provided with two protrusions 311 along the length direction that are adapted to the two second grooves 21 to meet the sliding requirements. The two sides of the protrusion 311 body have chamfers, which can make the slider 3 slide more smoothly on the slide rail 2. The sliding part 31 is provided with inclined support parts 312 on both sides, specifically located on the outside of the two protrusions 311. The support parts 312 are inclined from the bottom to the top of the sliding part 31 in a direction away from the sliding part 31, which improves the stability of the support.

[0019] At least one end of the sliding part 31 along its length is equipped with a main body assembly part 34 (which can be connected using M5 standard screws). The main body assembly part 34 has the same structure as the sliding part 31 and is adapted to the structure of the slide rail 2 to achieve sliding on the slide rail 2, namely, the same protrusion 311 structure as the sliding part 31, so that the assembled whole can slide on the slide rail 2. The top width of the main body assembly part 34 is smaller than the top width of the sliding part 31. The addition of the main body assembly part 34 is used to strengthen the support for the assembly part 32, further enhancing the assembly stability of the dummy target. Designing the sliding part 31 as a modular assembly structure can improve the flexibility of adjusting the assembly of dummy targets of different specifications. In this embodiment, two main body assembly parts 34 are installed at both ends along the length direction. The thickness (defined in the length direction) of the two main body assembly parts 34 can be the same or different to meet different assembly stability requirements.

[0020] In this embodiment, the assembly part 32 has a plate-like structure. The bottom surface of the assembly part 32 has at least two protrusions extending along its length, and the top surface of the sliding part 31 has at least two third grooves 313 that mate with the at least two protrusions. This concave-convex fit improves the installation stability of the sliding part 31 and the assembly part 32. The assembly part 32 and the sliding part 31 have corresponding mounting holes. Fasteners 8 pass through these mounting holes to fix the two parts relative to each other, and they can be connected using standard M5 screws.

[0021] In this embodiment, the self-locking mechanism 33 includes a handle portion 331 and a threaded portion 332. The mounting portion 32 and the sliding portion 31 are respectively provided with threaded holes, and the self-locking mechanism 33 passes through the threaded hole via its threaded portion 332 (e.g., ...). Figure 3 (As shown by the dashed arrow) It is threadedly connected to the assembly part 32 and the sliding part 31, and the threaded part 332 abuts against the slide rail 2 to realize the positioning of the slider 3 on the slide rail 2.

[0022] In practical use: like Figure 4 As shown, the bottom surface of the leg model 6 of the dummy target object 9 is equipped with a mounting component 7 that is compatible with the mounting part 32 (which can be connected via a standard M5 screw). In this embodiment, both the mounting part 32 and the mounting component 7 are magnetic pieces. The dummy target object 9 is magnetically connected to the slider 3 mounting part 32 on the slide plate via the magnet of the mounting component 7 on the bottom surface of its leg model 6. Figure 5 As shown in the diagram, the dotted lines represent the connection relationship; in actual use, the connections are made directly.

[0023] The legs of the dummy target 9 are simplified to the legs of an isosceles triangle, and the magnets connecting the fixed base are simplified to the base of the isosceles triangle. When the dummy's feet are attracted to the magnets on the base, an isosceles triangle is formed, a shape that provides structural stability. The angle between the dummy's legs can be changed by altering the position of the magnets on the sliding block 3 that fixes the dummy's feet, thus changing the base of the isosceles triangle and achieving the desired leg posture for the dummy target 9.

[0024] The following diagram illustrates the usage process, showing two parallel slide rails mounted on the base, with at least one slider installed on each rail: Scenario 1: When the target is a child, move the two sliders until the line connecting them is perpendicular to the two rails. The iron plate fixing the legs of the dummy target will attract the magnets of the sliders, and the magnetic force will keep the target in a standing position. The target can maintain a good standing posture under the action of gravity.

[0025] Scenario 2: When the target is a child, move the two sliders so that the line connecting them is at a 75-degree angle to the target's legs. The iron plate fixing the target's legs and the magnets of the sliders attract each other, and the target maintains a walking posture through magnetic force. Because the target has a uniform mass distribution, it can present a good walking posture under the action of gravity when making a stepping motion.

[0026] Scenario 3: When the target is an adult, move the two sliders until the line connecting them is perpendicular to the two slide rails. The iron plate fixing the legs of the dummy target will attract the magnets of the sliders, and the magnetic force will keep the target in a standing posture. The target can present a good standing posture under the action of gravity.

[0027] Scenario 4: When the target is an adult, move the two sliders so that the line connecting them is at a 75-degree angle to the target's legs. The iron plate fixing the target's legs and the magnets of the sliders attract each other, and the target maintains a walking posture through magnetic force. Because the target has a uniform mass distribution, it can present a good walking posture under the action of gravity when making a stepping motion.

[0028] Scenario 5: Simulate a scenario where multiple objects cross the road. Two sliders, each containing the same number of objects, are installed in two sliding rail slots. The objects are then mounted on the base in a specific posture. Design examples could include multiple children or several children behind an adult. The orientation of the objects can be determined by the position of the sliders.

[0029] This embodiment provides an angle-adjustable mounting base. By setting parallel or preset angled slide rails and a slider with a self-locking mechanism on the base, continuous and flexible adjustment of the leg opening angle and stride state is achieved. The slider and slide rail work together to ensure motion guidance accuracy, and the self-locking mechanism ensures stable and reliable posture during testing. The modular design supports quick replacement of different target objects and is suitable for various AEB testing scenarios such as pedestrians, children, and cyclists, significantly improving the realism and coverage of the test.

[0030] Example 2 Unlike Embodiment 1, three slide rails are installed.

[0031] Three parallel slide rails are arranged in two groups, with adjacent slide rails forming one group. One or more dummy targets are installed on the middle and right slide rails, and one or more dummy targets are installed on the middle and left slide rails, simulating multiple people arranged in a staggered manner. The number of sliders is adjusted according to the number and position of the dummy targets.

[0032] Of the three slide rails, two are set in parallel, and the third is set at a preset angle, such as 30 degrees, to simulate a leg position with inward tucking.

[0033] Example 3 Unlike embodiments one and two, four slide rails are installed.

[0034] Four slide rails are arranged in parallel, with two slide rails forming two groups. One or more dummy targets are installed on each group of slide rails.

[0035] Four slide rails are set in parallel, with adjacent slide rails forming a group, forming multiple groups. One or more dummy targets are installed on each group of slide rails, which can simulate complex multi-target situations.

[0036] The four slide rails are arranged in pairs to form two groups. The two slide rails in each group are parallel, but the two groups of slide rails are perpendicular or set at a preset angle. One or more dummy targets are installed on each group of slide rails to simulate complex multi-target situations.

[0037] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. An angle-adjustable mounting base, characterized in that, Including the base; At least two slide rails are installed on the base; At least one slider is slidably mounted on each slide rail; the bottom of the slider is provided with a sliding part adapted to the slide rail structure; the top surface of the sliding part is provided with an assembly part for connecting with an external target object; the slider is provided with a self-locking mechanism for positioning the slider on the slide rail.

2. The angle-adjustable mounting base according to claim 1, characterized in that, The base is provided with a first groove that is adapted to the bottom structure of the slide rail. When the slide rail is installed, its bottom is located in the first groove and does not interfere with the sliding of the slide rail mounting slider.

3. The angle-adjustable mounting base according to claim 1, characterized in that, Two sliders located on two slide rails are used as a group to assemble an external target object. The two slide rails are parallel to each other or arranged at a preset angle, so as to adjust the gait posture of the external target object by the relative displacement of the sliders on the slide rails.

4. The angle-adjustable mounting base according to claim 1, characterized in that, The slide rail has a second groove extending along its length on both sides; the sliding part has a Π-shaped structure; the two inner sides of the Π-shaped part opposite each other have two protrusions along their length that are adapted to the two second grooves.

5. The angle-adjustable mounting base according to claim 1, characterized in that, The sliding part is provided with support parts with inclined surfaces on both sides.

6. The angle-adjustable mounting base according to claim 5, characterized in that, The support section tilts from the bottom of the sliding section to the top in a direction away from the sliding section.

7. The angle-adjustable mounting base according to claim 1, characterized in that, The sliding part is equipped with a main body assembly part at least one end along its length; the main body assembly part has the same structure as the sliding part and is adapted to the slide rail structure to achieve sliding on the slide rail.

8. The angle-adjustable mounting base according to claim 1, characterized in that, The bottom surface of the assembly part is provided with at least two protrusions extending along the length direction, and the top surface of the sliding part is provided with at least two third grooves that are adapted to the at least two protrusions.

9. The angle-adjustable mounting base according to claim 1, characterized in that, The self-locking mechanism includes a handle and a threaded part; the assembly part and the sliding part are respectively provided with threaded holes. The self-locking mechanism is threadedly connected to the assembly part and the sliding part through the threaded holes, and the sliding part abuts against the slide rail to realize the positioning of the slider on the slide rail.

10. An angle-adjustable mounting base according to claim 1, characterized in that, Two magnetic assemblies are symmetrically installed at both ends of the base; the magnetic assemblies include a magnetic pressing block and two built-in metal circular blocks.

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