A multi-touch virtual reality treadmill

Abstract

The present invention discloses a multi-touch virtual reality treadmill and its control method. The base is connected to the rotary tray, and the rotary tray is connected to the treadmill frame through four electric lifting modules. A multi-touch panel is installed between the treadmill frame and the running belt. When a person runs on the running belt, the multi-touch panel receives the position coordinates and time of the footsteps. The central processor controls the running belt to make a distance adjustment in the opposite direction. At the same time, when the footsteps touch the running belt, the electric lifting module makes lowering and lifting actions, playing a role of stepless electronic shock absorption. This device has an extremely high response speed, can meet the rapid matching between humans and machines in virtual reality, and can expand more applications and experiences.

Description

[0001] The present invention relates to the field of virtual reality treadmills, and particularly to a human-computer interaction treadmill for somatosensory games. Background Art

[0002] With the development of technology and the Internet of Things, virtual reality technology has also made great progress, and some technologies and products related to virtual reality have emerged, which have greatly promoted people's yearning for the virtual reality world. Of course, there are still many unmet requirements and technical boundaries that are difficult to meet. For example, when people wear virtual reality glasses to experience virtual reality currently, the motion perception of the brain is contradictory to the actual human motion state, resulting in dizziness. To solve this problem, a set of motion devices that cooperate with visual perception is urgently needed. Although people are also making various attempts, most products lack a sense of interaction and have insufficient human-computer affinity. For example, the skateboard-style virtual reality treadmill has high safety, but walking by sliding greatly reduces the exercise experience, and there is a large gap in the somatosensory experience from walking in the real world, and people's acceptance is not high. There is also a type of intelligent control treadmill with a running belt that cannot meet the complex walking environment in virtual reality in terms of real-time performance and responsiveness. Summary of the Invention

[0003] The purpose of the present invention is to provide a device and a control method for a multi-touch virtual reality treadmill, achieving the purpose of precise detection and rapid response, so as to realize diversified application solutions.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A multi-touch virtual reality treadmill includes a base 1 connected to a rotary tray 3. Electric lifting modules 4 are installed at each end of the rotary tray 3. The electric lifting modules 4 are connected to a running platform frame 7. A multi-touch panel 9 is installed on the upper surface of the running platform frame 7. A running belt 10 is sleeved around the running platform frame 7 and the multi-touch panel 9.

[0006] The multi-touch panel 9 is made by using a printed circuit board method to produce a number of vertical conductive lines on a fiberglass board or plastic film substrate to represent the X direction, and isolating and stacking a number of horizontal conductive lines to represent the Y direction, and using pressure-sensitive switches 91 to connect the X direction and the Y direction at all intersection positions, thereby forming a matrix. Under normal conditions, the X-direction conductive lines and the Y-direction conductive lines are not electrically connected to each other. The central processor 5 applies electrical signals to the X-direction conductive lines respectively. If a footstep steps on, the contact point conducts a certain conductive line in the Y direction, and the central processor 5 can sense the electrical signal in the Y-direction conductive line and can establish the coordinates of the footstep stepping point position. In this way, the coordinate states, angle states, time states, etc. of multiple footstep stepping points can be established simultaneously, and the state detection data is direct.

[0007] Based on the coordinate status, angle status, time status, etc. of the foot stepping points during human movement established by the multi-point touch panel 9, the central processing unit 5 controls the running belt 10 to make a reverse adjustment, so as to send the stepped foot back to the starting coordinate position. Running like this, the human-computer interaction is accurate and timely, and the emergency stop or rapid walking of the machine is synchronized servo.

[0008] The main motor 6 is installed inside the treadmill frame 7, and the main motor 6 transmits power in the manner of the bevel gear pair 8. Such a layout can improve the transmission efficiency. At the same time, the main motor 6 can be hidden and installed inside the treadmill frame 7. At the same time, it can make the multi-point touch virtual reality treadmill have no distinction between the head and the tail. When a person steps onto the running belt 10 from the front, it can be intelligently recognized and run forward. When a person steps onto the running belt 10 from the reverse, it can be intelligently recognized and run in reverse.

[0009] Each end of the rotary tray 3 is installed with the electric lifting module 4, and the electric lifting module 4 is connected to the treadmill frame 7. Preferably, there are four electric lifting modules 4 in this solution, which can perform all-round slope lifting on the treadmill frame 7, or continuous vibration, or electronic shock absorption for the running person. That is, when the multi-point touch panel 9 senses the contact of the foot, the electric lifting module 4 drives the treadmill frame 7 to perform the operations of descending and lifting, so as to achieve the purpose of controllable electronic shock absorption.

[0010] The rotary motor 2 is installed inside the rotary tray 3. Preferably, the rotary motor 2 adopts an ultra-thin disk-type brushless motor. The rotary motor 2 drives the rotary tray 3 to rotate through a gear transmission method, so as to achieve the purpose of adjusting the angle. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0012] Figure 1 It is the overall view of the embodiment of the present invention.

[0013] Figure 2 It is the exploded view of the structure of the embodiment of the present invention.

[0014] Figure 3 It is the structure diagram of the electric lifting module of the embodiment of the present invention.

[0015] Figure 4 It is the schematic diagram of the multi-point touch panel of the embodiment of the present invention.

[0016] In the figure:

[0017] 1. Base; 2. Rotary motor; 3. Rotary tray; 4. Electric lifting module; 5. Central processing unit; 6. Main motor; 7. Treadmill frame; 8. Bevel gear pair; 9. Multi-point touch panel; 10. Running belt; 11. Safety handrail; 41. Lifting motor; 42. Worm and worm gear pair; 43. Screw; 44. Lifting slider; 45. Module housing; 91. Pressure sensor switch; 92. Y-direction wire; 93. X-direction wire. Specific embodiments

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] The embodiments of the present invention provide a multi-point touch virtual reality treadmill device and its control method. Referring to Figure 2 the exploded view of the shown structure, the base 1 is connected to the rotary tray 3. The electric lifting modules 4 are installed at the ends of the rotary tray 3. The electric lifting modules 4 are connected to the treadmill frame 7. The multi-point touch panel 9 is installed on the upper surface of the treadmill frame 7. The running belt 10 is sleeved around the treadmill frame 7 and the multi-point touch panel 9. The safety handrail 11 is installed on the side of the treadmill frame 7.

[0020] The base 1 is connected to the rotary tray 3 by a toothed slewing bearing. The rotary motor 2 is installed inside the rotary tray 3. When the rotary motor 2 rotates, it pushes the rotary tray 3 to rotate, so as to achieve the purpose of adjusting the angle.

[0021] Preferably, the rotary motor 2 adopts an ultra-thin disc-type brushless motor. This type of motor has a thin thickness, large torque, and stable operation. It can reduce the height of the whole machine while ensuring the torque.

[0022] The electric lifting modules 4 are installed at the ends of the rotary tray 3. Referring to Figure 3 the structural diagram of the electric lifting module shown, the lifting motor 41 is installed inside the electric lifting module 4. The lifting motor 41 transmits the rotational power to the screw 43 through the worm and worm gear pair 42. The screw 43 rotates to push the lifting slider 44 and the connected treadmill frame 7 to move up and down. The worm and worm gear pair 42 can not only transmit power but also lock the screw 43. Preferably, the screw 43 adopts a ball screw type screw with high force efficiency.

[0023] Referring to Figure 2 the exploded view of the structure shown, each end of the rotary tray 3 is equipped with the electric lifting module 4. Preferably, there are four electric lifting modules 4 in this embodiment, which respectively lift the four corners of the treadmill frame 7, and can perform all-round slope lifting, or continuous vibration, or electronic shock absorption for the runners on the treadmill frame 7.

[0024] The so-called electronic shock absorption means that when the multi-point touch panel 9 senses the contact of the footsteps, the electric lifting module 4 drives the treadmill frame 7 to perform the operations of descending and lifting, so as to achieve the purpose of controllable electronic shock absorption.

[0025] In the embodiment of the present invention, the actual power of the electric lifting module 4 is provided by the lifting motor 41. Of course, the electric lifting module 4 can also be replaced by an electric cylinder or other electric push rods. Since the principle is similar, no more details will be described here.

[0026] Referring to Figure 2 the exploded view of the structure shown, the main motor 6 is installed inside the treadmill frame 7. The main motor 6 uses the bevel gear pair 8 to transmit power. The bevel gear pair 8 is also called a bevel gear pair. One is installed on the shaft of the main motor 6, and the other is installed on the roller shaft of the treadmill frame 7. Such a layout can improve the transmission efficiency. At the same time, the main motor 6 can be hidden inside the treadmill frame 7, so that there is no distinction between the head and the tail of the multi-point touch virtual reality treadmill. When a person steps on the running belt 10 from the front, it can be intelligently recognized and run forward. When a person steps on the running belt 10 from the back, it can be intelligently recognized and run backward.

[0027] Preferably, the main motor 6 is a small-volume, high-power DC brushless motor.

[0028] Referring to Figure 2 the exploded view of the structure shown, the central processor 5 is installed inside the treadmill frame 7, and relevant external interfaces are arranged on the side of the treadmill frame 7. The central processor 5 includes functions such as detection, operation, control, wireless network connection, data input and output, and voice recognition.

[0029] Referring to Figure 2 the exploded view of the structure shown, the multi-point touch panel 9 is installed on the upper surface of the treadmill frame 7. The multi-point touch panel 9 is made on a glass fiber board or plastic film substrate in the form of a printed circuit board.

[0030] Referring to Figure 4The schematic diagram of the multi-point touchpad is shown. The X-direction wires 93 are vertical conductive lines made at equal intervals, the Y-direction wires 92 are horizontal conductive lines made at equal intervals, the pressure-sensitive switch 91 is a static film pressure-sensitive switch. The central processor 5 applies electrical signals to the X-direction wires 93 respectively. If a footstep steps on, the contact point conducts the Y-direction wires 92 through the pressure-sensitive switch 91. The central processor 5 can sense the electrical signals in the Y-direction wires 92 and establish the footstep stepping point coordinates. In this way, the coordinate states, angle states, time states, etc. of multiple footstep stepping points can be established simultaneously, and the state detection data is direct.

[0031] According to the coordinate states, angle states, time states, etc. of the footstep stepping points when a person is moving established by the multi-point touchpad 9, the central processor 5 controls the running belt 10 to make a reverse adjustment, so as to send the stepped foot back to the starting coordinate position, and run repeatedly in this way. According to the speed formula: distance / time = speed, both the stride distance size and the time used can determine the speed of sending the foot back to the starting position. Therefore, the human-computer interaction is accurate and timely, and the machine for sudden stop or sudden walk is synchronized servo.

[0032] Refer to Figure 2 The exploded view of the shown structure is referred to. The running belt 10 is sleeved around the running platform frame 7 and the multi-point touchpad 9, and plays a role in driving the foot back to the starting point.

[0033] Refer to Figure 2 The exploded view of the shown structure is referred to. The safety handrail 11 is installed on the side of the running platform frame 7 and plays a role in safety protection.

[0034] The above embodiments and diagrams provide typical specific embodiments and principles of the present invention, and are not regarded as limitations to the present invention. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be within the protection scope of the present invention.

Claims

1. A multi-touch virtual reality treadmill, characterized in that, the main body is composed of a base (1), a rotary tray (3), an electric lifting module (4), a treadmill frame (7), a multi-touch panel (9), and a running belt (10). The base (1) is connected to the rotary tray (3). Electric lifting modules (4) are installed at the ends of the rotary tray (3). The electric lifting module (4) is connected to the treadmill frame (7). The multi-touch panel (9) is installed on the upper surface of the treadmill frame (7). The running belt (10) is sleeved around the periphery of the treadmill frame (7) and the multi-touch panel (9). The base (1) is connected to the rotary tray (3) by a toothed slewing bearing. A rotary motor (2) is installed inside the rotary tray (3). The rotary motor (2) drives the rotary tray (3) to rotate by means of gear transmission. An elevating motor (41) is installed inside the electric lifting module (4). The elevating motor (41) transmits power to the elevating slider (44) through a worm and worm gear pair (42) and a screw (43). The elevating slider (44) is connected to the treadmill frame (7) to achieve omnidirectional lifting or electronic shock absorption.

2. A multi-touch virtual reality treadmill according to claim 1, characterized in that, a multi-touch panel (9) is installed between the upper surface of the treadmill frame (7) and the running belt (10). The multi-touch panel (9) is made of a fiberglass board or a plastic film substrate by using printed circuit board technology.

3. A multi-touch virtual reality treadmill according to claim 2, characterized in that, the multi-touch panel (9) has a number of vertical conductive lines representing the X direction, and a number of horizontal conductive lines are isolated and superimposed to represent the Y direction. Pressure sensors (91) are used to connect the X direction and the Y direction at all intersection positions to form a matrix. The central processing unit (5) applies electrical signals to the conductive lines in the X direction respectively. If a footstep steps on, the contact point conducts a certain conductive line in the Y direction. The central processing unit (5) can sense the electrical signal and establish the coordinate and time of the footstep stepping point.

4. A multi-touch virtual reality treadmill according to claim 3, characterized in that, the multi-touch panel (9) simultaneously establishes the coordinate status, angle status, and time status of multiple footstep stepping points. According to the coordinate distance, time, and speed, the central processing unit (5) controls the running belt (10) to make a reverse adjustment, so as to send the stepped foot back to the starting coordinate position.

5. A multi-touch virtual reality treadmill according to claim 3, characterized in that, the multi-touch panel (9) simultaneously establishes the coordinate status, angle status, and time status of multiple footstep stepping points. The central processing unit (5) establishes a series of dynamic maps of the footsteps according to the coordinate data set, further calculates the foot turning angle when a person makes a turning movement, or further controls the operation of the device by using a neural network algorithm.

6. A multi-touch virtual reality treadmill according to claim 1, characterized in that, the main motor (6) is installed inside the treadmill frame (7). The main motor (6) transmits power by means of a bevel gear pair (8).

7. A multi-touch virtual reality treadmill according to claim 1, characterized in that, The described multi-touch virtual reality treadmill has no distinction between the head and the tail. When a person steps onto the running belt (10) from the front, it can be intelligently recognized and run forward. When a person steps onto the running belt (10) from the back, it can be intelligently recognized and run backward.

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