Multi-degree-of-freedom unmanned motion platform

Abstract

The utility model discloses a multi-degree-of-freedom unmanned motion platform, which belongs to the technical field of micro-motion platforms and comprises a base station. A three-degree-of-freedom platform is mounted on the base station through an acceleration simulation module, and a rotating platform is rotationally mounted at the upper end of a top plate of the three-degree-of-freedom platform; a support frame is fixedly mounted on the rotating platform, and a variable cabin module is arranged on the support frame; the variable cabin module comprises a seat, a control box and a simulation control frame, by means of the mode, a user sits on the seat and then wears the VR glasses, the conditions of advancing, retreating, steering, bumping during fluctuation and the like of a vehicle during AI vehicle driving can be simulated through the four-freedom-degree motion platform, the user can obtain immersive experience under the cooperation of the VR glasses, and the user experience is improved. While the four-degree-of-freedom motion platform operates, the acceleration simulation module can cooperate with the four-degree-of-freedom motion platform to simulate vehicle starting and stopping conditions under different vehicle conditions, so that passengers can obtain real riding feeling of unmanned vehicles.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-motion platforms, in particular to a multi-freedom unmanned driving motion platform. Background Art

[0002] With the continuous development of AI technology, the unmanned driving technology of vehicles has also been highly developed. Through unmanned driving technology, vehicles can be controlled to perform highly automated driving.

[0003] Chinese patent CN116110270A discloses a multi-degree-of-freedom driving simulator based on mixed reality, including a control terminal, a multi-degree-of-freedom robotic arm, a seat platform and mixed reality glasses; the driving simulator simulates the physical effect of driving through the coordination of various components. However, current unmanned driving technology often focuses on vehicle route planning and other intelligent driving directions. Whether the start and stop of the vehicle when AI controls the vehicle is in line with the driving habits of passengers or drivers, and whether it will cause passengers or drivers to feel motion sickness or other discomfort, requires a more suitable simulation platform to obtain data.

[0004] Based on this, the utility model designs a multi-degree-of-freedom unmanned driving motion platform to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a multi-degree-of-freedom unmanned driving motion platform.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A multi-degree-of-freedom unmanned motion platform includes a base;

[0008] A three-degree-of-freedom platform is installed on the base through an acceleration simulation module, and a rotating platform is rotatably installed on the upper end of the top plate of the three-degree-of-freedom platform; a support frame is fixedly installed on the rotating platform, and a variable cockpit module is provided on the support frame; the variable cockpit module includes a seat, a control box and a simulation control frame, and the seat and the control box are fixedly installed on the support frame, and the control box is located on the armrest side of the seat; a plurality of control buttons and control switches are provided on the control box for controlling the operation of various components; the simulation control frame is installed on the support frame and is located opposite the seat; a simulation control frame is movably provided on the support frame, and the simulation control frame is located directly opposite the seat, a steering wheel is provided on the top of the simulation control frame, and a brake pedal and an accelerator pedal are provided on the bottom of the simulation control frame.

[0009] Furthermore, the lower end of the simulation control frame is hinged to the support frame through a rotating shaft, the lower end of the housing of the rotating push cylinder is hinged to the rotating platform through a hinge seat, and the output end of the rotating push cylinder is hinged to the simulation control frame through a hinge seat.

[0010] Furthermore, when the piston of the rotary push cylinder is in a retracted state, the hinged end of the simulated control frame is lower than the top surface of the support frame.

[0011] Furthermore, the acceleration simulation module includes a moving component and a stopping component. The three-degree-of-freedom platform is installed on the base through the moving component, and the stopping component is installed on one side of the base to block the three-degree-of-freedom platform.

[0012] Furthermore, the moving component includes a linear slide rail and a linear push rod. The linear slide rail is fixedly mounted on the base, and the base plate of the three-degree-of-freedom platform is slidingly connected to the linear slide rail through a slider; the linear push rod is fixedly connected to the base, and the output end of the linear push rod is fixedly connected to the base plate of the three-degree-of-freedom platform.

[0013] Furthermore, the stopping assembly includes a buffer and a baffle, the baffle is fixedly connected to the bottom plate of the three-degree-of-freedom platform, a plurality of buffers are fixedly connected to the base, and the impacted heads of the buffers are aligned with the baffle.

[0014] Furthermore, the linear push rod adopts an electric push rod or a cylinder.

[0015] Furthermore, the buffer is an adjustable buffer.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this utility model, the user puts on VR glasses after sitting in the seat. The four-degree-of-freedom motion platform can simulate the vehicle's forward and backward movement, steering, and bumps when the AI drives the vehicle. With the cooperation of VR glasses, the user can obtain an immersive experience. While the four-degree-of-freedom motion platform is running, the acceleration simulation module will cooperate with the four-degree-of-freedom motion platform to simulate the vehicle's start and stop situations under different vehicle conditions, so that passengers can get a real autonomous vehicle riding experience.

[0018] Users can directly intervene in the unmanned driving operation through the steering wheel, brake pedal and accelerator pedal, simulating the driving conditions of the unmanned vehicle when human interference occurs, obtaining more comprehensive unmanned driving vehicle condition data, and after storing the simulated control frame under the support frame, increasing the passenger's activity space and restoring the riding experience of being a passenger. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0020] Figure 1 The utility model is a three-dimensional multi-freedom unmanned driving motion platform Figure 1 ;

[0021] Figure 2 This is a front view of a multi-degree-of-freedom unmanned motion platform of the present utility model;

[0022] Figure 3 The utility model is a three-dimensional multi-freedom unmanned driving motion platform Figure 2 ;

[0023] Figure 4 It is a three-dimensional diagram of the variable cockpit module of the present invention.

[0024] The numbers in the figure represent:

[0025] 10. Base; 11. Three-degree-of-freedom platform; 12. Rotating platform; 13. Support frame; 20. Acceleration simulation module; 21. Linear slide; 22. Linear push rod; 23. Buffer; 24. Baffle; 30. Variable cockpit module; 31. Seat; 32. Control box; 33. Simulation control frame; 34. Rotating push cylinder. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0028] Example 1

[0029] In some embodiments, please refer to the appendix of the specification. Figure 1-4 , a multi-degree-of-freedom unmanned motion platform, comprising a base 10;

[0030] A three-degree-of-freedom platform 11 is mounted on the base 10 via an acceleration simulation module 20. A rotating platform 12 is rotatably mounted on the top plate of the three-degree-of-freedom platform 11. A support frame 13 is fixedly mounted on the rotating platform 12, and a variable cockpit module 30 is mounted on the support frame 13.

[0031] The three-degree-of-freedom platform 11 is a common technical means in the field. The three-degree-of-freedom platform 11 is composed of a top plate, a bottom plate, and three servo push rods arranged between the top plate and the bottom plate. The three servo push rods cooperate to control the top plate's three axial movements: up and down, tilt along the X axis, and tilt along the Y axis. A servo motor is fixedly mounted at the lower end of the top plate of the three-degree-of-freedom platform 11 to drive the rotating platform 12 to rotate. The three-degree-of-freedom platform 11 and the rotating platform 12 cooperate to form a four-degree-of-freedom motion platform, which can achieve flexible control of the variable cabin module 30 at a low cost.

[0032] The variable cockpit module 30 includes a seat 31, a control box 32 and a simulated control frame 33. The seat 31 and the control box 32 are fixedly mounted on the support frame 13, and the control box 32 is located on the armrest side of the seat 31; the control box 32 is provided with a plurality of control buttons and control switches for controlling the operation of various components; the simulated control frame 33 is installed on the support frame 13 and is located opposite the seat 31; the simulated control frame 33 is movably provided on the support frame 13, and the simulated control frame 33 is located directly opposite the seat 31, a steering wheel is provided on the top of the simulated control frame 33, and a brake pedal and an accelerator pedal are provided on the bottom of the simulated control frame 33, and the steering wheel, brake pedal and accelerator pedal are all electrically connected to the central control to return direct control data to the user.

[0033] In the present invention, the user sits on the seat 31 and puts on VR glasses. After selecting the test mode through the control box 32, the four-freedom motion platform is started. The four-freedom motion platform can simulate the vehicle's advance, retreat, steering, and bumps when the AI drives the vehicle, and with the cooperation of the VR glasses, the user can get an immersive experience. While the four-freedom motion platform is running, the acceleration simulation module 20 will cooperate with the four-freedom motion platform to simulate the vehicle start and stop conditions under different vehicle conditions, and obtain real unmanned vehicle start and stop data as much as possible, so that passengers can get a real feeling; if you want to simulate the situation of no one driving in the driving seat, you can raise the simulation control frame 33. The user can directly intervene in the unmanned driving control through the steering wheel, brake pedal and accelerator pedal, simulate the vehicle driving conditions of the unmanned vehicle when human interference occurs, and obtain more comprehensive unmanned vehicle condition data. After the simulation control frame 33 is stored under the support frame 13, the passenger's activity space is increased, and the riding experience as a passenger is restored.

[0034] The lower end of the simulated control frame 33 is hinged to the support frame 13 through a rotating shaft, the lower end of the shell of the rotating push cylinder 34 is hinged to the rotating platform 12 through a hinge seat, and the output end of the rotating push cylinder 34 is hinged to the simulated control frame 33 through a hinge seat; the rotation of the simulated control frame 33 can be controlled by the extension and contraction of the piston of the rotating push cylinder 34; when the piston of the rotating push cylinder 34 is in a retracted state, the hinged end of the simulated control frame 33 is lower than the top surface of the support frame 13, so as to avoid occupying the passenger space of the user.

[0035] The acceleration simulation module 20 includes a moving component and a stopping component. The three-degree-of-freedom platform 11 is mounted on the base 10 through the moving component. The stopping component is mounted on one side of the base 10 to block the three-degree-of-freedom platform 11.

[0036] The moving assembly includes a linear slide 21 and a linear push rod 22. The linear slide 21 is fixedly mounted on the base 10. The bottom plate of the three-degree-of-freedom platform 11 is connected to the linear slide 21 through a slider. The linear push rod 22 is fixedly connected to the base 10, and the output end of the linear push rod 22 is fixedly connected to the bottom plate of the three-degree-of-freedom platform 11.

[0037] The stopping assembly includes a buffer 23 and a baffle 24 , the baffle 24 is fixedly connected to the bottom plate of the three-degree-of-freedom platform 11 , and multiple buffers 23 are fixedly connected to the base 10 , and the impacted heads of the buffers 23 are aligned with the baffle 24 ;

[0038] In the present invention, the linear push rod 22 drives the three-degree-of-freedom platform 11 to move linearly under the limiting action of the linear slide rail 21 until the baffle 24 collides with the impacted head of the buffer 23, causing the three-degree-of-freedom platform 11 to stop moving, thereby simulating the acceleration experienced by passengers when the vehicle starts and stops, and with the cooperation of the four-degree-of-freedom motion platform, it simulates the start-stop effects under various vehicle conditions such as vehicle reversing, bumps and tilts, so that users on the linear slide rail 21 can get as realistic unmanned driving experience as possible, and the unmanned driving program provides accurate data.

[0039] The linear push rod 22 adopts an electric push rod or a cylinder with adjustable piston extension and retraction speed, which can simulate different degrees of vehicle starting acceleration. The buffer 23 adopts an adjustable buffer, which can simulate different degrees of vehicle stopping acceleration by adjusting the buffering absorption capacity of the piston rod.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multi-degree-of-freedom unmanned motion platform, comprising a base (10), characterized in that: A three-degree-of-freedom platform (11) is mounted on the base (10) via an acceleration simulation module (20); a rotating platform (12) is rotatably mounted on the upper end of the top plate of the three-degree-of-freedom platform (11); a support frame (13) is fixedly mounted on the rotating platform (12); a variable cockpit module (30) is provided on the support frame (13); the variable cockpit module (30) includes a seat (31), a control box (32) and a simulation control frame (33); the seat (31) and the control box (32) are fixedly mounted on the support frame (13). The control box (32) is located on one side of the armrest of the seat (31); a plurality of control buttons and control switches are provided on the control box (32) for controlling the operation of various components; a simulation control frame (33) is installed on the support frame (13) and is located opposite to the seat (31); a simulation control frame (33) is movably provided on the support frame (13), and the simulation control frame (33) is located directly opposite to the seat (31); a steering wheel is provided on the top of the simulation control frame (33), and a brake pedal and an accelerator pedal are provided on the bottom of the simulation control frame (33).

2. The multi-degree-of-freedom unmanned motion platform according to claim 1, characterized in that: The lower end of the simulation control frame (33) is hinged to the support frame (13) through a rotating shaft, the lower end of the housing of the rotary push cylinder (34) is hinged to the rotating platform (12) through a hinge seat, and the output end of the rotary push cylinder (34) is hinged to the simulation control frame (33) through a hinge seat.

3. The multi-degree-of-freedom unmanned motion platform according to claim 2, characterized in that: When the piston of the rotary push cylinder (34) is in a contracted state, the hinged end of the simulated control frame (33) is lower than the top surface of the support frame (13).

4. The multi-degree-of-freedom unmanned motion platform according to claim 3, characterized in that: The acceleration simulation module (20) comprises a moving component and a stopping component. The three-degree-of-freedom platform (11) is mounted on the base (10) via the moving component. The stopping component is mounted on one side of the base (10) and is used to block the three-degree-of-freedom platform (11).

5. The multi-degree-of-freedom unmanned motion platform according to claim 4, characterized in that: The moving assembly comprises a linear slide rail (21) and a linear push rod (22); the linear slide rail (21) is fixedly mounted on a base (10); the bottom plate of the three-degree-of-freedom platform (11) is connected to the linear slide rail (21) in a limited sliding manner via a slider; the linear push rod (22) is fixedly connected to the base (10); and the output end of the linear push rod (22) is fixedly connected to the bottom plate of the three-degree-of-freedom platform (11).

6. The multi-degree-of-freedom unmanned driving motion platform according to claim 5, characterized in that: The stopping assembly comprises a buffer (23) and a baffle (24), wherein the baffle (24) is fixedly connected to the bottom plate of the three-degree-of-freedom platform (11), a plurality of buffers (23) are fixedly connected to the base (10), and the impacted heads of the buffers (23) are aligned with the baffle (24).

7. The multi-degree-of-freedom unmanned motion platform according to claim 6, characterized in that: The linear push rod (22) is an electric push rod or a cylinder.

8. The multi-degree-of-freedom unmanned motion platform according to claim 7, characterized in that: The buffer (23) is an adjustable buffer.

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