CN110384910A - Motion platform based on virtual reality - Google Patents

Motion platform based on virtual reality Download PDF

Info

Publication number
CN110384910A
CN110384910A CN201810354647.2A CN201810354647A CN110384910A CN 110384910 A CN110384910 A CN 110384910A CN 201810354647 A CN201810354647 A CN 201810354647A CN 110384910 A CN110384910 A CN 110384910A
Authority
CN
China
Prior art keywords
connect
module
optocoupler
resistance
relay
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810354647.2A
Other languages
Chinese (zh)
Inventor
辜红珍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201810354647.2A priority Critical patent/CN110384910A/en
Publication of CN110384910A publication Critical patent/CN110384910A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0087Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00Training appliances or apparatus for special sports
    • A63B69/16Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B71/0622Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0087Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
    • A63B2024/009Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load the load of the exercise apparatus being controlled in synchronism with visualising systems, e.g. hill slope
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0087Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
    • A63B2024/0096Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load using performance related parameters for controlling electronic or video games or avatars
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B71/0622Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
    • A63B2071/0638Displaying moving images of recorded environment, e.g. virtual environment
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/30Speed
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/30Speed
    • A63B2220/34Angular speed
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/40Acceleration
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/40Acceleration
    • A63B2220/44Angular acceleration

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The invention discloses the motion platforms based on virtual reality, including mechanical part, control section and what comes into a driver's part, the mechanical part includes bicycle, actuator, sensor, the control section includes digital analog converter, analog-digital converter, serial communication module, control computing module, the what comes into a driver's part includes three-dimensional scenic player, display module, audio module, the bicycle is connect with actuator, actuator is connect with digital analog converter, bicycle is connect with sensor, sensor is connect with analog-digital converter, digital analog converter is connect with serial communication module.The present invention feels to simulate by mechanical part, control section and what comes into a driver's part to the practical of cycling, and the person of letting on obtains actual experience.In order to make participant obtain true visual experience and enough feeling of immersion, realizes and the various control actions of participant are responded in real time, the variation including speed, the variation in direction and the viewpoint of climb and fall change.

Description

Motion platform based on virtual reality
Technical field
The present invention relates to virtual realities, and in particular to the motion platform based on virtual reality.
Background technique
With the high speed development of national economy and the increasingly raising of people's living standard and people's bodybuilding and entertainment amusement meaning The continuous reinforcement known, exercycle gradually become public fitness equipment.But nowadays the existing fitness equipment in market only meets Body-building is liked pursuing Novel body building entertainment way along with people, and dull health keeping mode will make most people feel to detest It is tired, the effect of reaching amusement and recreation while taking exercise is needed, and as the interactive movement simulator based on virtual reality One expansion, the Interactive Bicycle Simulator with motion platform just can satisfy this demand.This kind of system simulation cycles When more sensory experiences, enable people to really experience indoors and ride a bicycle body-building on one side outdoors, appreciate field beauty on one side The movement analog simulator of good landscape.But these analog simulators have the characteristics that common simultaneously, be exactly it is bulky, cost is high Expensive, intelligence is demonstrated in showground, and therefore, it is difficult to popularize.Interactive sensation simulation device collection sound, light, electricity, machine Tool, computer technology are integrated, and can not only simulate various movements, moreover it is possible to according to the requirement of scene, change behaviour during the motion Vision, the sense of hearing and the posture of author, the characteristics of having fully demonstrated the interactivity of virtual reality, feeling of immersion and Multi-Sensory.With The rapid development of virtual reality technology, various high performance simulators continuously emerge, the further expansion application of simulator Range.The picture and body-sensing that the cycling analogue system of existing virtual reality is presented are untrue, accuracy and control journey Degree is inadequate.
Summary of the invention
The present invention is in order to solve the above-mentioned technical problem, and it is an object of the present invention to provide the motion platform based on virtual reality.
The present invention is achieved through the following technical solutions:
Motion platform based on virtual reality, including mechanical part, control section and what comes into a driver's part, the Machinery Ministry subpackage Bicycle, actuator, sensor are included, the control section includes digital analog converter, analog-digital converter, serial communication module, control Computing module processed, the what comes into a driver's part include three-dimensional scenic player, display module, audio module, the bicycle and are executed Device connection, the actuator are connect with digital analog converter, and the bicycle is connect with sensor, the sensor and analog-to-digital conversion Device connection, the digital analog converter are connect with serial communication module, and the analog-digital converter is connect with serial communication module, described Serial communication module is connect with control computing module, and the three-dimensional scenic player is connect with control computing module, the display Module is connect with three-dimensional scenic player, and the audio module is connect with three-dimensional scenic player;The digital analog converter includes Control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module, cable interface module, data collecting card, on Position machine, control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module connect with cable interface module respectively It connects, the cable interface module is connect with data collecting card, and the data collecting card is connect with computer;Exogenous data signal point It is not passed through control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module, wherein control relay circuit is used In receiving the signal for controlling the action state of relay in exogenous data signal, the electric shock on-off circuit is for detecting release electricity Press characteristic test, the static current of lcd and loop voltage module for detecting contactor power consumption, the cable interface module is used for Signal between control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module and data collecting card transmits, The data collecting card is for converting analog signals into digital signal;Relay uses SIZE3, the control relay circuit Including resistance R17, resistance R18, resistance R19, resistance R20, optocoupler U3, optocoupler U4, diode D9, diode D10, light-emitting diodes Pipe DA9, light emitting diode DA10, the one end the resistance R17 connect the P10 of relay, and the other end connects shining for optocoupler U3 The anode of diode;The one end resistance R18 connects the emitter of the phototriode of optocoupler U3, and the other end connects light emitting diode The anode of DA9, the minus earth of light emitting diode DA9;The cathode of the anode connection light emitting diode DA9 of diode D9, two poles The cathode of pipe D9 is connected on the route that resistance R18 is connect with optocoupler U3;The phototriode of optocoupler U3 emitter connection after The P1.0 of electric appliance;The one end the resistance R19 connects the P11 of relay, and the other end connects the sun of the light emitting diode of optocoupler U4 Pole;The one end resistance R20 connects the emitter of the phototriode of optocoupler U4, and the other end connects the sun of light emitting diode DA10 Pole, the minus earth of light emitting diode DA10;The cathode of the anode connection light emitting diode DA10 of diode D10, diode D10 Cathode be connected on the route that resistance R20 is connect with optocoupler U4;The emitter of the phototriode of optocoupler U4 connects relay P1.1.
When participant, which rides over, to be moved on bicycle, the data such as speed, steering, tendency of bicycle pass through sensor reality When acquire, then handle to obtain position and direction of the participant in virtual scene via control section analysis, pass to what comes into a driver's portion Point, drive the virtual scene of screen to show and change;Meanwhile when the scene changes in screen, such as change of displacement, road conditions Change etc., control section can be fed back to, obtains executing signal accordingly and pass on actuator, generation damps or driving force, Participant is set to have the feeling of above-mentioned scene change, to obtain good feeling of immersion.
Using individually designed back and front supporting platform mechanism, if necessary to can also by some simple components by its Connection.Cylinder, that is, interactive object of motion platform mainly uses normal domestic use bicycle or mountain bike, then mixes point From vehicle body structural support platform, motion-sensing and effect execute mechanical structure, to constitute entire mechanical module.
In the present invention, mainly participant is captured in real time by various sensors to act on bicycle and generate various Kinematic parameter is passed to control section, final effect and virtual environment, realizes the interaction of people and virtual environment.In simplified system In, the only transmitting of directive transmitting and speed, therefore the acquisition of corner and speed parameter is to pass for whole system Important.
The executive component of damping force is equipped with corresponding magnetic powders brake program controller according to scene using magnetic powder brake Road conditions control the size of different damping power.Magnetic powder brake is merged by gear unit and driven unit.At two groups Space between unit is filled with granular magnetic powder.When magnetic coil is non-conductive, torque will not be passed from transmission shaft in driven shaft, But such as coil electromagnetism is powered, magnetic powder is just attracted to generate hardening phenomenon due to the effect of magnetic force, it can handle between continuously slipping Torque is conveyed.
In order to make the participant of bicycle simulator obtain true visual experience, it is necessary to be carried out to the model of three-dimensional scenic Real-time graphics calculations, the electromechanical output data and scene output data provided by acquiring bicycle, by mathematical model meter It calculates, the input data of scene module is obtained, thus real-time update contextual data.Updated contextual data is penetrated in 3-D graphic In player, the figure shown on screen is then generated.
Further, sensor includes velocity sensor, acceleration transducer, angular-rate sensor, angular acceleration sensing Device.
Further, actuator includes damper, damper, driver.
Compared with prior art, the present invention having the following advantages and benefits: the present invention passes through mechanical part, control Part and what comes into a driver's part are felt to simulate to the practical of cycling, and the person of letting on obtains actual experience.In order to obtain participant True visual experience and enough feeling of immersion, realize and respond in real time to the various control actions of participant, including speed Variation, the viewpoint variation of the variation in direction and climb and fall.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is schematic structural view of the invention;
Fig. 2 is digital-to-analog converter structures schematic diagram of the present invention;
Fig. 3 is invention relay control circuit.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made For limitation of the invention.
Embodiment
As shown in Fig. 1 and Fig. 2, Fig. 3, the motion platform based on virtual reality, including mechanical part, control section and what comes into a driver's Part, the mechanical part include bicycle, actuator, sensor, and the control section includes digital analog converter, analog-to-digital conversion Device, serial communication module, control computing module, the what comes into a driver's part includes three-dimensional scenic player, display module, audio mould Block, the bicycle are connect with actuator, and the actuator is connect with digital analog converter, and the bicycle is connect with sensor, The sensor is connect with analog-digital converter, and the digital analog converter is connect with serial communication module, the analog-digital converter with Serial communication module connection, the serial communication module are connect with control computing module, the three-dimensional scenic player and control Computing module connection, the display module are connect with three-dimensional scenic player, and the audio module and three-dimensional scenic player connect It connects;The digital analog converter includes control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module, cable Interface module, data collecting card, host computer, control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module It is connect respectively with cable interface module, the cable interface module is connect with data collecting card, the data collecting card and calculating Machine connection;Exogenous data signal each leads into control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage mould Block, wherein control relay circuit is used to receive the signal that the action state of relay is controlled in exogenous data signal, the touching Electric on-off circuit is for detecting release voltage characteristic test, the static current of lcd and loop voltage module for detecting contactor function Consumption, the cable interface module is for control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module and number According to the signal transmission between capture card, the data collecting card is for converting analog signals into digital signal;Relay uses SIZE3, the control relay circuit include resistance R17, resistance R18, resistance R19, resistance R20, optocoupler U3, optocoupler U4, two Pole pipe D9, diode D10, light emitting diode DA9, light emitting diode DA10, the one end the resistance R17 connect the P10 of relay, Its other end connects the anode of the light emitting diode of optocoupler U3;The one end resistance R18 connects the transmitting of the phototriode of optocoupler U3 Pole, the other end connect the anode of light emitting diode DA9, the minus earth of light emitting diode DA9;The anode of diode D9 connects The cathode of light emitting diode DA9, the cathode of diode D9 are connected on the route that resistance R18 is connect with optocoupler U3;Optocoupler U3's The P1.0 of the emitter connection relay of phototriode;The one end the resistance R19 connects the P11 of relay, and the other end connects Connect the anode of the light emitting diode of optocoupler U4;The one end resistance R20 connects the emitter of the phototriode of optocoupler U4, the other end Connect the anode of light emitting diode DA10, the minus earth of light emitting diode DA10;The anode of diode D10 connects light-emitting diodes The cathode of pipe DA10, the cathode of diode D10 are connected on the route that resistance R20 is connect with optocoupler U4;Photosensitive the three of optocoupler U4 The P1.1 of the emitter connection relay of pole pipe.
Sensor includes velocity sensor, acceleration transducer, angular-rate sensor, angular acceleration transducer.Actuator Including damper, damper, driver.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include Within protection scope of the present invention.

Claims (3)

1. the motion platform based on virtual reality, which is characterized in that described including mechanical part, control section and what comes into a driver's part Mechanical part includes bicycle, actuator, sensor, and the control section includes that digital analog converter, analog-digital converter, serial ports are logical Interrogate module, control computing module, the what comes into a driver's part includes three-dimensional scenic player, display module, audio module, it is described voluntarily Vehicle is connect with actuator, and the actuator is connect with digital analog converter, and the bicycle is connect with sensor, the sensor with Analog-digital converter connection, the digital analog converter are connect with serial communication module, the analog-digital converter and serial communication module Connection, the serial communication module are connect with control computing module, and the three-dimensional scenic player is connect with control computing module, The display module is connect with three-dimensional scenic player, and the audio module is connect with three-dimensional scenic player;The digital-to-analogue turns Parallel operation includes control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module, cable interface module, data Capture card, host computer, control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module connect with cable respectively The connection of mouth mold block, the cable interface module are connect with data collecting card, and the data collecting card is connect with computer;Extraneous number It is believed that number each leading into control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module, wherein relay control Circuit processed is used to receive the signal that the action state of relay is controlled in exogenous data signal, and the electric shock on-off circuit is for examining Release voltage characteristic test, the static current of lcd and loop voltage module are surveyed for detecting contactor power consumption, the cable interface Module is between control relay circuit, electric shock on-off circuit, static current of lcd and loop voltage module and data collecting card Signal transmission, the data collecting card is for converting analog signals into digital signal;Relay uses SIZE3, the relay Device control circuit includes resistance R17, resistance R18, resistance R19, resistance R20, optocoupler U3, optocoupler U4, diode D9, diode D10, light emitting diode DA9, light emitting diode DA10, the one end the resistance R17 connect the P10 of relay, other end connection The anode of the light emitting diode of optocoupler U3;The one end resistance R18 connects the emitter of the phototriode of optocoupler U3, and the other end connects The anode of sending and receiving optical diode DA9, the minus earth of light emitting diode DA9;The anode of diode D9 connects light emitting diode DA9 Cathode, the cathode of diode D9 is connected on the route that resistance R18 is connect with optocoupler U3;The hair of the phototriode of optocoupler U3 The P1.0 of emitter-base bandgap grading connection relay;The one end the resistance R19 connects the P11 of relay, and the other end connects shining for optocoupler U4 The anode of diode;The one end resistance R20 connects the emitter of the phototriode of optocoupler U4, and the other end connects light emitting diode The anode of DA10, the minus earth of light emitting diode DA10;The cathode of the anode connection light emitting diode DA10 of diode D10, The cathode of diode D10 is connected on the route that resistance R20 is connect with optocoupler U4;The emitter of the phototriode of optocoupler U4 connects The P1.1 of contact relay.
2. the motion platform according to claim 1 based on virtual reality, which is characterized in that the sensor includes speed Sensor, acceleration transducer, angular-rate sensor, angular acceleration transducer.
3. the motion platform according to claim 1 based on virtual reality, which is characterized in that the actuator includes damping Device, damper, driver.
CN201810354647.2A 2018-04-19 2018-04-19 Motion platform based on virtual reality Withdrawn CN110384910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810354647.2A CN110384910A (en) 2018-04-19 2018-04-19 Motion platform based on virtual reality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810354647.2A CN110384910A (en) 2018-04-19 2018-04-19 Motion platform based on virtual reality

Publications (1)

Publication Number Publication Date
CN110384910A true CN110384910A (en) 2019-10-29

Family

ID=68283528

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810354647.2A Withdrawn CN110384910A (en) 2018-04-19 2018-04-19 Motion platform based on virtual reality

Country Status (1)

Country Link
CN (1) CN110384910A (en)

Similar Documents

Publication Publication Date Title
KR101094858B1 (en) Real-Time Virtual Realrity Sports Platform Apparutus Using Feedback Motion Base and Power Feedback Health Equipments
US9694235B2 (en) Method and system for virtual hiking
CN106960612B (en) One kind seeing vehicle and test ride simulation system and method based on VR
CN1247284C (en) Method and apparatus for realizing virtual riding bicycle
CN105056478B (en) A kind of real-time, interactive Exercycle
KR101726902B1 (en) Method for simulating specific movements by haptic feedback, and device implementing the method
CN104464438A (en) Virtual reality technology-based automobile driving simulation training system
CN101259322A (en) Bicycle sport simulated system
CN105664469B (en) Kinematic system and its implementation with simulated scenario
CN111161586A (en) Rescue vehicle simulation training device and operation method
CN107349573A (en) Virtual reality body-building system based on smart mobile phone and Internet of Things
Deligiannidis et al. The vr scooter: Wind and tactile feedback improve user performance
CN104793740A (en) Method for achieving exercise based on virtual travel
CN209821674U (en) Multi-degree-of-freedom virtual reality movement device
CN202715193U (en) 3D (three dimensional) simulation body building bicycle
CN202534190U (en) Subway driving simulation system
CN110384910A (en) Motion platform based on virtual reality
KR102239618B1 (en) Control system for virtual reality driver simulator
CN110390846A (en) A kind of movement simulation platform of riding of virtual reality
CN110384918A (en) A kind of cycling analogue system
CN110384932A (en) The virtual reality system of cycling emulation
CN213844443U (en) Flight simulator
CN110384890A (en) Cycling analogue system based on virtual reality
KR20090126159A (en) Virtual reality cycling machine with electric power generation
CN206363575U (en) A kind of paragliding VR simulators

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20191029

WW01 Invention patent application withdrawn after publication