A shooting stand and a testing device

Abstract

The present application provides a shooting gantry and a testing device, which relate to the field of automotive simulation technology. The shooting gantry includes a ground calibration component, namely a front bottom cross bar, a rear bottom cross bar and a middle bottom cross bar extending along a first direction, and a left bottom cross bar and a right bottom cross bar extending along a second direction. The left bottom cross bar and the right bottom cross bar are respectively slidably connected to the front bottom cross bar, the rear bottom cross bar and the middle bottom cross bar and are telescopic at the same time; vertical calibration rods extending along a third direction are provided on the ground calibration component. The vertical calibration rods on the left bottom cross bar and the right bottom cross bar can slide along the second direction. The first direction, the second direction and the third direction are perpendicular to each other. The cross bar is slidably connected to the vertical calibration rod along the third direction and is used for installing a camera; when in use, the shooting gantry is adjusted according to the actual data of the vehicle model to be simulated to determine data such as vehicle width, vehicle length and vehicle height; the present application realizes the simulation of different vehicle models by using a structure with movable connections and has good applicability.

Description

Technical Field

[0001] This application relates to the field of automotive simulation technology, and particularly to a shooting bench and a testing device. Background Art

[0002] The number of automobiles in possession is increasing, and the functions of automobiles are also becoming more and more diverse. However, there is no accurate definition standard for the testing, performance experiments, and standard performance comparison of automobiles. Moreover, different definition standards need to be adjusted according to different vehicle models. This requires the establishment of a database that can be used for testing various different vehicle models. When collecting relevant data for vehicle testing to establish a database, it is necessary to use real vehicles of different models as test objects, which is extremely time-consuming and energy-consuming. Therefore, in the prior art, shooting benches are gradually used to simulate real vehicles for testing. However, most of the existing shooting benches can only simulate a single vehicle model, and the applicability is poor. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a shooting bench and a testing device.

[0004] In a first aspect, this application provides a shooting bench, including:

[0005] A ground calibration component, the ground calibration component includes a left bottom cross bar, a right bottom cross bar, a front bottom cross bar, a rear bottom cross bar, and a middle bottom cross bar; the front bottom cross bar, the rear bottom cross bar, and the middle bottom cross bar are parallel to each other and all extend along a first direction, the left bottom cross bar and the right bottom cross bar are parallel to each other and all extend along a second direction, and the second direction is perpendicular to the first direction; both ends of each of the front bottom cross bar, the rear bottom cross bar, and the middle bottom cross bar are provided with chutes extending along the first direction; the left bottom cross bar and the right bottom cross bar are respectively slidably connected to the front bottom cross bar, the middle bottom cross bar, and the rear bottom cross bar in sequence through the chutes at corresponding positions; the left bottom cross bar and the right bottom cross bar can be respectively telescoped along the second direction;

[0006] Vertical components are respectively provided in the middle parts of the front bottom cross bar, the middle bottom cross bar, and the rear bottom cross bar; the left bottom cross bar and the right bottom cross bar are respectively provided with the vertical components that can slide along the second direction; the vertical component includes a vertical calibration rod extending along a third direction, the third direction is perpendicular to the first direction and the second direction, a cross bar is provided on the vertical calibration rod, the cross bar is perpendicular to the vertical calibration rod and is slidably connected to the vertical calibration rod along the third direction; the cross bar is used for installing a camera.

[0007] According to the technical solutions provided by certain embodiments of the present application, a first motor is provided on the cross bar; the driving shaft of the first motor is perpendicular to the cross bar and the vertical calibration rod; a connection frame is provided at the free end of the driving shaft of the first motor, and the connection frame is a U-shaped frame with a first open end; the middle part of the side of the connection frame away from the first open end is fixedly connected to the free end of the driving shaft of the first motor, and the camera is connected to the first open end.

[0008] According to the technical solutions provided by certain embodiments of the present application, a second motor is provided on one side of the connection frame; through holes are respectively provided on both sides of the first open end; the driving shaft of the second motor sequentially penetrates through the two through holes and can rotate in the two through holes; the camera is fixedly installed on the driving shaft of the second motor; the camera is located between the two through holes.

[0009] According to the technical solutions provided by certain embodiments of the present application, the left bottom cross bar and the right bottom cross bar have the same structure, and both include a two-way air cylinder. The two ends of the two-way air cylinder are respectively provided with a first air rod and a second air rod extending along the second direction; one end of the first air rod away from the two-way air cylinder is connected to a first extension rod, and the first extension rod is slidably connected to the rear bottom cross bar through the chute at the end of the rear bottom cross bar; one end of the second air rod away from the two-way air cylinder is connected to a second extension rod, and the second extension rod is slidably connected to the front bottom cross bar through the chute at the end of the front bottom cross bar.

[0010] According to the technical solutions provided by certain embodiments of the present application, a left rear vertical rod extending along the third direction is slidably connected to the left bottom cross bar, and a right rear vertical rod extending along the third direction is slidably connected to the right bottom cross bar. The left rear vertical rod and the right rear vertical rod can respectively slide along the second direction.

[0011] According to the technical solutions provided by certain embodiments of the present application, a first light source rod is further provided on the vertical calibration rod connected to the middle of the front bottom cross bar, and a second light source rod is further provided on the vertical calibration rod connected to the middle of the rear bottom cross bar. An infrared generator is provided on the first light source rod, and an infrared receiver corresponding to the infrared generator is provided on the second light source rod.

[0012] In a second aspect, the present application provides a testing device, including the shooting gantry described above. A road simulation component is provided below the shooting gantry. The road simulation component includes a base, the base has a mounting surface, and four support rods extending in the third direction are provided on the mounting surface. Every two of the support rods form a group, and the two groups of support rods are distributed in the second direction. A first combined wheel is rotatably connected between the two support rods of one group, and a second combined wheel is rotatably connected between the two support rods of the other group. The rotation axes of the first combined wheel and the second combined wheel both extend in the first direction. A conveyor belt is tensioned on the first combined wheel and the second combined wheel. A driving mechanism is provided on the first combined wheel, and the driving mechanism is used to drive the first combined wheel to rotate around its rotation axis.

[0013] According to the technical solution provided by some embodiments of the present application, a first space is formed inside the conveyor belt. Shells are respectively provided on both sides of the conveyor belt along the first direction. A lever is connected between the two shells, and there is a gap between the shell and the conveyor belt. A support column is further provided on the base. The support rods and the support column are both located at the gap. The support column extends in the third direction and the free end of the support column is fixedly connected with a connecting plate. The connecting plate is located inside the first space. A support rod extending in the second direction is provided on the connecting plate, and the free end of the support rod is rotatably connected with the lever. A lifting mechanism is further provided on the connecting plate, and the lifting mechanism is used to drive the lever to rotate around the support rod.

[0014] According to the technical solution provided by some embodiments of the present application, the lifting mechanism includes a slide rail extending in the third direction. Fixed plates are provided at both ends of the slide rail. A lead screw is rotatably connected between the two fixed plates. A third motor is provided on the fixed plate away from the connecting plate, and the driving shaft of the third motor is connected to one end of the lead screw. A slider is provided on the slide rail, and the lead screw passes through the slider and is threadedly connected with the slider. One end of the slider away from the slide rail is connected with a sliding rod, and the sliding rod is movably connected with the lever. When the slider slides along the slide rail, the sliding rod can drive the lever to rotate around the support rod.

[0015] According to the technical solution provided by some embodiments of the present application, the sliding rod includes a first sub-rod and a second sub-rod connected to each other. The first sub-rod extends in the second direction and is connected with the slider. The second sub-rod extends in the third direction and is provided with a rotating shaft penetrating through the second sub-rod in the second direction. The rotating shaft is rotatably connected with the second sub-rod. A rectangular through hole is provided on the lever. A slideway extending along its own length direction is provided on the inner circumference of the through hole. The free end of the second sub-rod penetrates through the through hole and is connected with a ball head, and the rotating shaft is slidably connected with the lever through the slideway.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: The present application provides a shooting gantry, including the front bottom cross bar, the rear bottom cross bar, and the middle bottom cross bar that all extend along the first direction; the left bottom cross bar and the right bottom cross bar both extend along the second direction, and the second direction is perpendicular to the first direction; the front bottom cross bar, the rear bottom cross bar, and the middle bottom cross bar are respectively slidably connected to the left bottom cross bar and the right bottom cross bar; the left bottom cross bar and the right bottom cross bar can both slide along the first direction and can be telescoped along the second direction; vertical components are respectively provided in the middle parts of the front bottom cross bar, the middle bottom cross bar, and the rear bottom cross bar; the left bottom cross bar and the right bottom cross bar are respectively provided with the vertical components at symmetric positions; the vertical component includes a vertical calibration rod extending along the third direction, the third direction is perpendicular to the first direction and the second direction, a cross bar is provided on the vertical calibration rod, the cross bar is perpendicular to the vertical calibration rod and is slidably connected to the vertical calibration rod along the third direction; the cross bar is used for installing a camera; during use, obtain the actual data of the vehicle model to be simulated, adjust the distance between the left bottom cross bar and the right bottom cross bar according to the vehicle width of the vehicle model to be simulated, adjust the distance between the front bottom cross bar and the rear bottom cross bar according to the vehicle length of the vehicle model to be simulated, and adjust the height of the cross bar on the middle bottom cross bar according to the vehicle height of the vehicle model to be simulated; according to the distance from the front of the vehicle model to the front wheels, synchronously adjust the positions of the vertical calibration rods on the left bottom cross bar and the right bottom cross bar, and use the cameras on each cross bar to capture the images required during the vehicle model test process; the present application realizes the simulation of the vehicle length, vehicle width, and vehicle height of different vehicle models by using the movably connected ground calibration component and the height-adjustable cross bar on the vertical calibration rod, so that the shooting gantry can simulate various vehicle models and has good applicability.

[0017] It should be understood that the description of technical features, technical solutions, beneficial effects, or similar languages in the present application does not imply that all features and advantages can be achieved in any single embodiment. On the contrary, it can be understood that the description of features or beneficial effects means that at least one embodiment includes specific technical features, technical solutions, or beneficial effects. Therefore, the description of technical features, technical solutions, or beneficial effects in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions, and beneficial effects described in this embodiment can be combined in any appropriate manner. Those skilled in the art will understand that an embodiment can be implemented without one or more specific technical features, technical solutions, or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in specific embodiments that do not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0019] Figure 1 Structural schematic diagram of the shooting bench provided in Embodiment 1 of the present application;

[0020] Figure 2 For Figure 1 Enlarged structural schematic diagram of part A in

[0021] Figure 3 Structural schematic diagram of the road simulation component provided in Embodiment 2 of the present application;

[0022] Figure 4 Another structural schematic diagram of the road simulation component provided in Embodiment 2 of the present application;

[0023] Figure 5 Internal structural schematic diagram of the road simulation component provided in Embodiment 2 of the present application;

[0024] Figure 6 Structural schematic diagram of the lifting mechanism provided in Embodiment 2 of the present application.

[0025] The text markings shown in the figure are as follows:

[0026] 1. Ground calibration component; 2. Vertical component; 3. Cross bar; 4. Road simulation component; 101. Left bottom cross bar; 102. Right bottom cross bar; 103. Front bottom cross bar; 104. Rear bottom cross bar; 105. Middle bottom cross bar; 106. Double-acting cylinder; 201. Vertical calibration rod; 202. Left rear vertical rod; 203. Right rear vertical rod; 204. First light source rod; 205. Second light source rod; 301. First motor; 302. Connection frame; 303. Second motor; 304. Camera; 401. Base; 402. Conveyor belt; 403. Outer shell; 404. First combination wheel; 405. Second combination wheel; 406. Driving mechanism; 407. Lever; 408. Connecting plate; 409. Support rod; 410. Lifting mechanism; 4101. Slide rail; 4102. Fixed plate; 4103. Lead screw; 4104. Third motor; 4105. Slide block; 411. Slide bar; 412. Ball head. Detailed implementation manners

[0027] To enable those skilled in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present application. Specifically, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0029] Embodiment 1

[0030] As mentioned in the background art, in view of the problems in the prior art, the present application provides a shooting gantry, comprising:

[0031] A ground calibration assembly 1, the ground calibration assembly 1 includes a left bottom cross bar 101, a right bottom cross bar 102, a front bottom cross bar 103, a rear bottom cross bar 104 and a middle bottom cross bar 105; the front bottom cross bar 103, the rear bottom cross bar 104 and the middle bottom cross bar 105 are parallel to each other and all extend along a first direction, the left bottom cross bar 101 and the right bottom cross bar 102 are parallel to each other and all extend along a second direction, and the second direction is perpendicular to the first direction; both ends of each of the front bottom cross bar 103, the rear bottom cross bar 104 and the middle bottom cross bar 105 are provided with chutes extending along the first direction; the left bottom cross bar 101 and the right bottom cross bar 102 are respectively slidably connected to the front bottom cross bar 103, the middle bottom cross bar 105 and the rear bottom cross bar 104 in sequence through the chutes at corresponding positions; the left bottom cross bar 101 and the right bottom cross bar 102 can be respectively telescoped along the second direction;

[0032] The middle parts of the front bottom cross bar 103, the middle bottom cross bar 105, and the rear bottom cross bar 104 are respectively provided with a vertical component 2; the left bottom cross bar 101 and the right bottom cross bar 102 are respectively provided with the vertical component 2 that can slide along the second direction; the vertical component 2 includes a vertical calibration rod 201 extending along a third direction, the third direction is perpendicular to the first direction and the second direction, a cross bar 3 is provided on the vertical calibration rod 201, the cross bar 3 is perpendicular to the vertical calibration rod 201 and is slidably connected to the vertical calibration rod 201 along the third direction; the cross bar 3 is used for installing a camera 304.

[0033] Please refer to Figure 1 , the left bottom cross bar 101 and the right bottom cross bar 102 are parallel to each other, and the front bottom cross bar 103, the middle bottom cross bar 105, and the rear bottom cross bar 104 are parallel to each other; the ground calibration component 1 encloses a "day"-shaped frame, the left bottom cross bar 101 and the right bottom cross bar 102 represent the long sides of a rectangular frame (i.e., the outer frame of the "day"-shaped frame), the front bottom cross bar 103 and the rear bottom cross bar 104 represent the wide sides of the rectangular frame. Since the left bottom cross bar 101 and the right bottom cross bar 102 are respectively slidably connected to the front bottom cross bar 103, the middle bottom cross bar 105, and the rear bottom cross bar 104, and the lengths of the left bottom cross bar 101 and the right bottom cross bar 102 are adjustable, the length and width of the rectangular frame can be adjusted, and thus the vehicle length and vehicle width of different vehicle models can be simulated; the cross bar 3 is used for calibrating each feature point on the simulated vehicle model, and the height of the cross bar 3 on the middle bottom cross bar 105 can be adjusted to simulate the vehicle height of different vehicle models; the vertical calibration rods 201 on the left bottom cross bar 101 and the right bottom cross bar 102 can simulate the positions of the front wheels; the first direction is the vehicle width direction of the vehicle model to be simulated, the second direction is the vehicle length direction of the vehicle model to be simulated, and the third direction is the vehicle height direction of the vehicle model to be simulated.

[0034] During use, obtain the actual data of the vehicle model to be simulated, adjust the distance between the left bottom cross bar 101 and the right bottom cross bar 102 according to the vehicle width of the vehicle model to be simulated, adjust the distance between the front bottom cross bar 103 and the rear bottom cross bar 104 according to the vehicle length of the vehicle model to be simulated, and adjust the height of the cross bar 3 on the middle bottom cross bar 105 according to the vehicle height of the vehicle model to be simulated; according to the distance from the front of the vehicle model to the front wheels to be simulated, synchronously adjust the positions of the vertical calibration rods 201 on the left bottom cross bar 101 and the right bottom cross bar 102, and use the cameras 304 on each cross bar 3 to capture the images required during the vehicle model test.

[0035] The present application realizes the simulation of the vehicle length, vehicle width and vehicle height of different vehicle models by setting the ground calibration assembly 1 as a movably connected structure and the cross bar 3 with adjustable height on the vertical calibration rod 201, so that the shooting bench can simulate various vehicle models and has good applicability; by using the cross bar 3 with adjustable position to calibrate the feature points on the vehicle appearance, the accuracy of data simulation is ensured.

[0036] In a preferred embodiment, a first motor 301 is provided on the cross bar 3; the drive shaft of the first motor 301 is perpendicular to the cross bar 3 and the vertical calibration rod 201; a connection frame 302 is provided at the free end of the drive shaft of the first motor 301, and the connection frame 302 is a U-shaped frame with a first open end; the middle part of the side of the connection frame 302 away from the first open end is fixedly connected to the free end of the drive shaft of the first motor 301, and the first open end is connected to the camera 304.

[0037] As Figure 2 shown, the first motor 301 is fixed on the cross bar 3. When the first motor 301 works, the camera 304 rotates around the drive shaft of the first motor 301 through the connection frame 302, and the shooting direction of the camera 304 during the test can be adjusted.

[0038] In a preferred embodiment, a second motor 303 is provided on one side of the connection frame 302; through holes are respectively provided on both sides of the first open end; the drive shaft of the second motor 303 sequentially passes through the two through holes and can rotate in the two through holes; the camera 304 is fixedly installed on the drive shaft of the second motor 303; the camera 304 is located between the two through holes.

[0039] As Figure 2 shown, the second motor 303 is fixed on one side of the connection frame 302 by screws and nuts, the drive shaft of the second motor 303 can rotate freely in the two through holes, and the camera 304 is driven to rotate by the drive shaft of the second motor 303, increasing the shooting range of the camera 304.

[0040] In a preferred embodiment, the left bottom cross bar 101 and the right bottom cross bar 102 have the same structure, and both include a double-acting cylinder 106. At both ends of the double-acting cylinder 106, a first air rod and a second air rod extending along the second direction are respectively provided; one end of the first air rod away from the double-acting cylinder 106 is connected with a first extension rod, and the first extension rod is slidably connected with the rear bottom cross bar 104 through a chute at the end of the rear bottom cross bar 104; one end of the second air rod away from the double-acting cylinder 106 is connected with a second extension rod, and the second extension rod is slidably connected with the front bottom cross bar 103 through a chute at the end of the front bottom cross bar 103.

[0041] As Figure 1 shown, by making the first air rod and the second air rod expand and contract through the double-acting cylinder 106, the relative positions of the front bottom cross bar 103 and the rear bottom cross bar 104 in the shooting bench can be adjusted, so as to simulate the vehicle lengths of different vehicle models.

[0042] In a preferred embodiment, a left rear vertical rod 202 extending along the third direction is slidably connected to the left bottom cross bar 101, and a right rear vertical rod 203 extending along the third direction is slidably connected to the right bottom cross bar 102. The left rear vertical rod 202 and the right rear vertical rod 203 can slide along the second direction respectively.

[0043] As Figure 1 shown, the distance between the left rear vertical rod 202 and the right rear vertical rod 203 is the rear wheel track of the simulated vehicle model, and the distance between the vertical calibration rods 201 on the left bottom cross bar 101 and the right bottom cross bar 102 is the front wheel track of the simulated vehicle model; by synchronously adjusting the positions of the left rear vertical rod 202 and the right rear vertical rod 203 relative to the shooting bench, the shooting bench simulates the wheelbases of different vehicle models.

[0044] In a preferred embodiment, a first light source rod 204 is further provided on the vertical calibration rod 201 connected to the middle of the front bottom cross bar 103, and a second light source rod 205 is further provided on the vertical calibration rod 201 connected to the middle of the rear bottom cross bar 104. An infrared generator is provided on the first light source rod 204, and an infrared receiver corresponding to the infrared generator is provided on the second light source rod 205.

[0045] As Figure 1 shown, during the process of vehicle model simulation test, by whether the infrared receiver can receive the infrared light emitted by the infrared generator, the height of the protrusions or obstacles existing below the shooting bench is judged.

[0046] Further, the connection line between the left rear vertical rod 202 and the right rear vertical rod 203 is set as the X-axis, the connection line of the midpoints of the front bottom cross rod 103 and the rear bottom cross rod 104 is set as the Y-axis, and the straight line perpendicular to the X-axis and the Y-axis and passing through the intersection of the two is used as the Z-axis. By establishing a three-dimensional coordinate system, the positions of each camera 304 can be accurately calibrated.

[0047] In this application, by setting the shooting gantry to be movably connected, the shooting gantry can simulate vehicles with different vehicle lengths, vehicle widths, vehicle heights, and wheelbases, further improving the applicability of the shooting gantry; by establishing a three-dimensional coordinate system, the positions of each camera 304 are accurately positioned to ensure the accuracy of the shooting gantry when simulating a vehicle and reduce errors; by setting the first motor 301 and the second motor 303, the shooting angles and shooting ranges of the camera 304 are increased, further improving the accuracy of vehicle data simulation.

[0048] Embodiment 2

[0049] This application provides a testing device, including the shooting gantry described in Embodiment 1; a road simulation component 4 is provided below the shooting gantry. The road simulation component 4 includes a base 401. The base 401 has a mounting surface. Four support rods extending in the third direction are provided on the mounting surface. Every two support rods form a group, and the two groups of support rods are distributed in the second direction; a first combined wheel 404 is rotatably connected between the two support rods in one group, and a second combined wheel 405 is rotatably connected between the two support rods in the other group. The rotation axes of the first combined wheel 404 and the second combined wheel 405 both extend in the first direction. A conveyor belt 402 is tensioned on the first combined wheel 404 and the second combined wheel 405. A driving mechanism 406 is provided on the first combined wheel 404, and the driving mechanism 406 is used to drive the first combined wheel 404 to rotate around its rotation axis.

[0050] Such as Figure 3 and Figure 4As shown, the conveyor belt 402, the first combined wheel 404, and the second combined wheel 405 are suspended on the base 401 through the support rod. When the driving mechanism 406 drives the first combined wheel 404 to rotate around its own axis, it can drive the conveyor belt 402 and cause the second combined wheel 405 to rotate around its own axis. The first combined wheel 404 includes two first rollers arranged in parallel along the first direction. Connecting shafts are respectively provided on the relatively close sides of the two first rollers, and both connecting shafts are connected to the driving mechanism 406. The driving mechanism 406 includes a driving motor and a gear set connected thereto. The driving motor is installed on one of the first rollers, and its driving shaft extends along the first direction. The gear set includes a first bevel gear, and the first bevel gear is sleeved on the free end of the driving shaft of the driving motor and fixedly connected. The first bevel gear meshes with a second bevel gear, and the axis of the second bevel gear extends along the third direction. The second bevel gear is fixedly connected with a first gear coaxial therewith. The first gear meshes with a second gear, and the second gear is located on the side of the first gear away from the first bevel gear. The axis of the second gear extends along the third direction and is fixedly connected with a third bevel gear coaxial therewith. The third bevel gear meshes with two fourth bevel gears, and the two fourth bevel gears are coaxially arranged and their axes extend along the first direction. The two fourth bevel gears are respectively sleeved on the free ends of the connecting shafts of the two first rollers and fixedly connected. The second combined wheel 405 includes two second rollers arranged in parallel along the first direction, and a connecting shaft is fixedly connected between the two second rollers.

[0051] In a preferred embodiment, a first space is formed inside the conveyor belt 402. Outer shells 403 are respectively provided on both sides of the conveyor belt 402 along the first direction. A lever 407 is connected between the two outer shells 403, and there is a gap between the outer shell 403 and the conveyor belt 402. A support column is also provided on the base 401. Both the support rod and the support column are located at the gap. The support column extends along the third direction, and the free end of the support column is fixedly connected with a connecting plate 408. The connecting plate 408 is located inside the first space. A support rod 409 extending along the second direction is provided on the connecting plate 408, and the free end of the support rod 409 is rotatably connected to the lever 407. A lifting mechanism 410 is also provided on the connecting plate 408, and the lifting mechanism 410 is used to drive the lever 407 to rotate around the support rod 409.

[0052] As Figure 4 and Figure 5As shown, during use, the shooting platform is installed above the road simulation assembly 4. The left bottom cross bar 101 and the right bottom cross bar 102 are respectively located on two of the outer shells 403. When the lifting mechanism 410 drives the lever 407 to rotate around the support rod 409, the two outer shells 403 respectively rise / fall following the two ends of the lever 407, which can tilt the entire shooting platform. In this embodiment, the two ends of the lever 407 and the two outer shells 403 can be fixedly connected, enabling the simulation of the state of a vehicle on an inclined road condition.

[0053] Further, the two ends of the lever 407 and the two outer shells 403 can also be movably connected. Through slots are respectively provided at the two ends of the lever 407, and the two through slots extend along the length direction of the lever 407. Two ear plates are provided on the inner side of the outer shell 403, and a roller is provided between the two ear plates. The roller passes through the through slot, and the two ends of the roller are respectively fixedly connected to the two ear plates. The roller can rotate in the through slot and slide along the length direction of the lever 407 at the same time. In the initial state, the roller is located on the side of the through slot close to the support rod 409, and the two ends of the lever 407 respectively abut against the two outer shells 403. The friction between the contact surfaces of the left bottom cross bar 101 and the right bottom cross bar 102 with the two outer shells 403, as well as the friction between the contact surfaces of the two ends of the lever 407 with the outer shells 403 on both sides, can keep the outer shell 403 in balance in the initial state. When the lifting mechanism 410 drives the lever 407 to rotate around the support rod 409, the two outer shells 403 rise / fall following the two ends of the lever 407, and the roller slides to the side of the through slot far from the support rod 409 and rotates relative to the lever 407 at the same time. Since the rotation angle of the lever 407 is about 10° and the two ends of the lever 407 always remain in contact with the two outer shells 403 respectively, the two outer shells 403 can only displace in the vertical direction in the balanced state, forming a straight up and down movement, which tilts the entire shooting platform and enables the simulation of the state of a vehicle on an inclined road condition.

[0054] In a preferred embodiment, the lifting mechanism 410 includes a slide rail 4101 extending along the third direction, and fixing plates 4102 are provided at both ends of the slide rail 4101; a lead screw 4103 is rotatably connected between the two fixing plates 4102, and a third motor 4104 is provided on the fixing plate 4102 away from the connecting plate 408. The drive shaft of the third motor 4104 is connected to one end of the lead screw 4103. A slider 4105 is provided on the slide rail 4101, and the lead screw 4103 passes through the slider 4105 and is threadedly connected to the slider 4105; one end of the slider 4105 away from the slide rail 4101 is connected to a slide rod 411, and the slide rod 411 is movably connected to the lever 407. When the slider 4105 slides along the slide rail 4101, the slide rod 411 can drive the lever 407 to rotate around the support rod 409.

[0055] As Figure 6 shown, when the drive shaft of the third motor 4104 drives the lead screw 4103 to rotate around its own axis, the slider 4105 and the lead screw 4103 generate a mutual force due to the threaded connection, causing the slider 4105 to slide along the third direction on the slide rail 4101. At the same time, the slider 4105 can drive the lever 407 to rotate around the support rod 409 through the slide rod 411.

[0056] In a preferred embodiment, the slide rod 411 includes a first sub-rod and a second sub-rod connected to each other. The first sub-rod extends along the second direction and is connected to the slider 4105, and the second sub-rod extends along the third direction and is provided with a rotating shaft that penetrates the second sub-rod along the second direction. The rotating shaft is rotatably connected to the second sub-rod; a rectangular through-hole is provided on the lever 407, and a slideway extending along its own length direction is provided on the inner circumference of the through-hole. The free end of the second sub-rod penetrates the through-hole and is connected with a ball head 412, and the rotating shaft is slidably connected to the lever 407 through the slideway.

[0057] As Figure 4 shown, when the lever 407 rotates around the support rod 409 under the drive of the lifting mechanism 410, the rotating shaft slides along the length direction of the lever 407 to the side of the through-hole away from the support rod 409, and at the same time, the rotating shaft rotates relative to the second sub-rod. Therefore, the second sub-rod can drive the lever 407 to rotate around the support rod 409 while moving along the third direction; when the second sub-rod rises along the third direction, the ball head 412 can form a protrusion on the surface of the conveyor belt 402. According to the infrared rays generated by the infrared generator received by the infrared receiver, the height of the protrusion formed on the surface of the conveyor belt 402 can be judged.

[0058] In this application, by providing the lifting mechanism 410 and the lever 407 in the road simulation component 4, the road simulation component 4 can simultaneously simulate different road conditions, meeting the requirements of the shooting bench for vehicle type simulation tests on inclined and convex road conditions, and improving the applicability of the test device. By providing cameras 304 on each cross bar 3 of the shooting bench, images of surrounding reference objects when the shooting bench is in different road conditions can be captured during the test, and relevant data for vehicle tests can be collected.

[0059] In this article, specific examples are used to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. The above is only the preferred implementation manner of this application. It should be noted that due to the limited nature of written expression and the objectively infinite specific structures, for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the inventive concept and technical solution to other occasions without improvement, should all be regarded as the protection scope of this application.

Claims

1. A photographing stand, characterized in that: include: A ground calibration component (1), the ground calibration component (1) comprising a left bottom cross bar (101), a right bottom cross bar (102), a front bottom cross bar (103), a rear bottom cross bar (104) and a middle bottom cross bar (105); the front bottom cross bar (103), the rear bottom cross bar (104) and the middle bottom cross bar (105) are parallel to each other and extend along a first direction, the left bottom cross bar (101) and the right bottom cross bar (102) are parallel to each other and extend along a second direction, and the second direction is perpendicular to the first direction. The front bottom cross bar (103), the rear bottom cross bar (104) and the middle bottom cross bar (105) are each provided with a slide groove extending along the first direction at both ends; the left bottom cross bar (101) and the right bottom cross bar (102) are respectively slidably connected with the front bottom cross bar (103), the middle bottom cross bar (105) and the rear bottom cross bar (104) through the slide grooves at corresponding positions; the left bottom cross bar (101) and the right bottom cross bar (102) can be respectively extended and retracted along the second direction; A vertical assembly (2) is respectively provided in the middle of the front bottom cross bar (103), the middle bottom cross bar (105), and the rear bottom cross bar (104); the left bottom cross bar (101) and the right bottom cross bar (102) are respectively provided with the vertical assembly (2) which can slide along the second direction; the vertical assembly (2) comprises a vertical calibration rod (201) extending along a third direction, the third direction being perpendicular to the first direction and the second direction; a cross bar (3) is provided on the vertical calibration rod (201), the cross bar (3) is perpendicular to the vertical calibration rod (201) and is slidably connected to the vertical calibration rod (201) along the third direction; the cross bar (3) is used for mounting a camera (304).

2. A photographing stand according to claim 1, characterized in that: A first motor (301) is provided on the cross bar (3); a driving shaft of the first motor (301) is perpendicular to the cross bar (3) and the vertical calibration rod (201); a connecting frame (302) is provided at the free end of the driving shaft of the first motor (301), and the connecting frame (302) is a U-shaped frame having a first open end; a middle portion of a side of the connecting frame (302) away from the first open end is fixedly connected to the free end of the driving shaft of the first motor (301), and the first open end is connected to the camera (304).

3. A photographing stand according to claim 2, characterized in that: A second motor (303) is provided on one side of the connection frame (302); through holes are provided on both sides of the first opening end; a drive shaft of the second motor (303) passes through the two through holes in sequence and can rotate in the two through holes; the camera (304) is fixedly mounted on the drive shaft of the second motor (303); and the camera (304) is located between the two through holes.

4. A photographing stand according to claim 1, characterized in that: The left bottom cross bar (101) and the right bottom cross bar (102) have the same structure and both include a bidirectional air cylinder (106). The two ends of the bidirectional air cylinder (106) are respectively provided with a first air rod and a second air rod extending along the second direction; the end of the first air rod away from the bidirectional cylinder (106) is connected to a first extension rod, and the first extension rod is slidably connected to the rear bottom cross bar (104) through a slide groove at the end of the rear bottom cross bar (104); the end of the second air rod away from the bidirectional cylinder (106) is connected to a second extension rod, and the second extension rod is slidably connected to the front bottom cross bar (103) through a slide groove at the end of the front bottom cross bar (103).

5. A photographing stand according to claim 4, characterized in that: The left bottom cross bar (101) is slidably connected to a left rear vertical bar (202) extending along the third direction, and the right bottom cross bar (102) is slidably connected to a right rear vertical bar (203) extending along the third direction. The left rear vertical bar (202) and the right rear vertical bar (203) can slide along the second direction respectively.

6. The photographing stand according to claim 1, characterized in that: A first light source rod (204) is also provided on the vertical calibration rod (201) connected to the middle of the front bottom cross bar (103), and a second light source rod (205) is also provided on the vertical calibration rod (201) connected to the middle of the rear bottom cross bar (104). An infrared generator is provided on the first light source rod (204), and an infrared receiver corresponding to the infrared generator is provided on the second light source rod (205).

7. A testing device, characterized in that: The invention comprises a shooting platform as claimed in any one of claims 1 to 6; a road simulation component (4) is arranged below the shooting platform, the road simulation component (4) comprises a base (401), the base (401) has a mounting surface, four support rods extending along the third direction are arranged on the mounting surface, two of the support rods form a group, and the two groups of support rods are distributed along the second direction; a first combination wheel (404) is rotatably connected between the two support rods of one group, and a second combination wheel (405) is rotatably connected between the two support rods of the other group, the rotation axes of the first combination wheel (404) and the second combination wheel (405) both extend along the first direction, a conveyor belt (402) is tensioned on the first combination wheel (404) and the second combination wheel (405), and a driving mechanism (406) is arranged on the first combination wheel (404), and the driving mechanism (406) is used to drive the first combination wheel (404) to rotate around its rotation axis.

8. A testing device according to claim 7, characterized in that: A first space is formed inside the conveyor belt (402), and shells (403) are respectively provided on both sides of the conveyor belt (402) along the first direction, a lever (407) is connected between the two shells (403), and a gap exists between the shells (403) and the conveyor belt (402); a support column is also provided on the base (401), and the support rod and the support column are both located at the gap, the support column extends along the third direction, and a connecting plate (408) is fixedly connected to the free end of the support column, and the connecting plate (408) is located in the first space; a support rod (409) extending along the second direction is provided on the connecting plate (408), and the free end of the support rod (409) is rotatably connected to the lever (407); a lifting mechanism (410) is also provided on the connecting plate (408), and the lifting mechanism (410) is used to drive the lever (407) to rotate around the support rod (409).

9. A testing device according to claim 8, characterized in that: The lifting mechanism (410) comprises a slide rail (4101) extending along the third direction, and fixed plates (4102) are provided at both ends of the slide rail (4101); a screw rod (4103) is rotatably connected between the two fixed plates (4102), and a third motor (4104) is provided on the fixed plate (4102) away from the connecting plate (408), and a driving shaft of the third motor (4104) is connected to one end of the screw rod (4103); A slider (4105) is provided, and the screw rod (4103) passes through the slider (4105) and is threadedly connected to the slider (4105); one end of the slider (4105) away from the slide rail (4101) is connected to a slide rod (411), and the slide rod (411) is movably connected to the lever (407). When the slider (4105) slides along the slide rail (4101), the slide rod (411) can drive the lever (407) to rotate around the support rod (409).

10. A testing device according to claim 9, characterized in that: The sliding rod (411) comprises a first sub-rod and a second sub-rod which are connected to each other, wherein the first sub-rod extends along the second direction and is connected to the sliding block (4105), and the second sub-rod extends along the third direction and is provided with a rotating shaft which passes through the second sub-rod along the second direction, and the rotating shaft is rotatably connected to the second sub-rod; the lever (407) is provided with a rectangular through hole, and the inner periphery of the through hole is provided with a slideway which extends along its own length direction, and the free end of the second sub-rod is connected to a ball head (412) after passing through the through hole, and the rotating shaft is slidably connected to the lever (407) via the slideway.

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