CN106880945A - Interior based on virtual reality glasses is ridden body-building system - Google Patents

Abstract

The invention relates to an indoor cycling fitness system based on virtual reality glasses, comprising a motion data acquisition unit, a software processing unit, a wireless transmission unit and a three-dimensional display unit, and the motion data acquisition unit includes a Hall sensor, an Arduino controller and a wireless transmission module , the Hall sensor is used to collect human body movement data, the Arduino controller continuously obtains human body movement data from the output end of the Hall sensor, and the wireless sending module is used to send the data to the wireless transmission unit; the software processing unit includes a Unity module, which uses In the construction of virtual reality scenes, the logical design of virtual scenes is carried out according to the data of the acquisition unit; the stereoscopic display unit includes virtual reality glasses, which are used to stereoscopically display synchronous virtual scenes, and detect the rotation of the user's head through the built-in gyroscope . Compared with the traditional indoor body-building method, the present invention can promote user's exercise, alleviate user's psychological pressure, and increase body-building fun.

Description

Indoor Cycling Fitness System Based on Virtual Reality Glasses

technical field

The invention relates to the technical field of virtual reality, in particular to an indoor cycling fitness system based on virtual reality glasses.

Background technique

With the gradual acceleration of the pace of life, people have more demands in their spare time. At the same time, with the improvement of related technologies and the reduction of the cost of hardware and software equipment, more and more various entertainment devices have entered people's field of vision. As a novel form of entertainment, somatosensory games are increasingly accepted by people of all ages.

Virtual reality technology (Virtual Reality) is one of the high-tech emerging in recent years. This technology mainly generates a three-dimensional virtual world through computer simulation technology, providing users with simulations of vision, hearing, touch and other senses, bringing users immersive experience.

As one of the types of electronic games, somatosensory games are quite different from traditional electronic games. Somatosensory games generally do not use traditional input peripherals such as mice and keyboards, but instead use input devices with various functions to capture the user's body movements. By using the user's body movements as the input signal of the game, the purpose of using the body to control the game is achieved. Compared with ordinary games, somatosensory games can bring users a better sense of substitution. In addition, the change of the input method also makes the game itself more unique fun.

Compared with ordinary electronic games, somatosensory games generally require users to use the whole body or a part of the body to manipulate the game. This feature makes somatosensory games inseparable from personal fitness shaping. As a new way to assist users to exercise and promote users to exercise, somatosensory games integrate exercise and fitness into interesting game content. While helping users to exercise, it also helps users relieve their psychological pressure. Therefore, designing a fitness system that is closely related to entertainment and fitness is of great significance for green life, healthy life, promotion of exercise and decompression.

Contents of the invention

The purpose of the present invention is to provide an indoor cycling fitness system based on virtual reality glasses, a new way to promote user exercise, and integrate exercise and fitness into interesting game content.

The technical solution to realize the object of the present invention is: an indoor cycling fitness system based on virtual reality glasses, including a motion data acquisition unit, a software processing unit, a wireless transmission unit and a stereoscopic display unit, wherein

The motion data acquisition unit includes a Hall sensor, an Arduino controller and a wireless transmission module, the Hall sensor is used to collect human body motion data, and the Arduino controller constantly obtains human body motion data from the output end of the Hall sensor, so The wireless sending module is used to send data to the wireless transmission unit;

The wireless transmission unit is used to transmit the received data to the software processing unit;

Described software processing unit comprises Unity module, and this module is used for the construction of virtual reality scene, carries out the logical design of virtual scene according to the data of acquisition unit simultaneously;

The stereoscopic display unit includes virtual reality glasses for stereoscopically displaying a synchronized virtual scene, and detects the rotation of the user's head through a built-in gyroscope.

Compared with prior art, remarkable advantage of the present invention is:

(1) Indoor riding fitness system of the present invention, through Arduino controller and Hall sensor, combine and gather the relevant motion data, Unity software platform builds up virtual three-dimensional scene, then combines the motion data that collects, controls the change of virtual reality scene, Finally, it will be displayed synchronously through the virtual reality glasses Oculus Rift; (2) The present invention proposes a new way to assist users in exercising and promote their exercise, and integrates exercise and fitness into interesting game content, changing the traditional indoor fitness experience. It is of great significance for promoting exercise, green life and decompression; (3) the present invention can be packaged and integrated on indoor cycling fitness equipment, and has a very high prospect of economic benefits.

Description of drawings

Fig. 1 is a functional block diagram of the indoor cycling fitness system based on virtual reality glasses of the present invention.

FIG. 2 is a schematic structural diagram of a motion data acquisition unit.

Figure 3 is a schematic block diagram of the logical architecture design of the Unity virtual scene.

detailed description

In conjunction with Figure 1, an indoor cycling fitness system based on virtual reality glasses, including a motion data acquisition unit, a software processing unit, a wireless transmission unit and a stereoscopic display unit, wherein

The motion data acquisition unit includes a Hall sensor, an Arduino controller and a wireless transmission module, the Hall sensor is used to collect human body motion data, and the Arduino controller constantly obtains human body motion data from the output end of the Hall sensor, so The wireless sending module is used to send data to the wireless transmission unit;

The wireless transmission unit is used to transmit the received data to the software processing unit;

Described software processing unit comprises Unity module, and this module is used for the construction of virtual reality scene, carries out the logical design of virtual scene according to the data of acquisition unit simultaneously;

The stereoscopic display unit includes virtual reality glasses for stereoscopically displaying a synchronized virtual scene, and detects the rotation of the user's head through a built-in gyroscope.

Further, the Hall sensor is used in conjunction with the magnetic steel to detect the user's movement speed; the Hall sensor is installed at the heel of the user's shoes, and the magnetic steel is placed at the effective detection position directly below the Hall sensor;

When the Hall sensor is opposite to the magnetic steel, it will generate a pulse output to the Arduino controller, and measure the user's movement speed through the number of pulses.

Further, the human body movement data refers to the user's movement speed, the bicycle speed is measured according to the pulse count, the pulse signal frequency output by the Hall sensor is proportional to the bicycle speed, and the pulse signal has the following relationship with the bicycle speed:

In the formula, n is the speed of the bicycle, P is the number of pulses of the bicycle wheel, and T is the period of the output square wave signal;

Calculate the speed of the bicycle according to formula (1), measure the speed of the left and right feet, and then take the average value, and then send this data to the software processing unit through the wireless module.

Further, the software processing unit uses Unity's three-dimensional engine and physics engine to detect road collisions, controls the use of game characters together with user input, and uses first-person characters for control.

Further, the construction process of the virtual reality scene is specifically: draw up a general sketch of the three-dimensional scene, including the overall environment, weather and field of view; use the plug-in TerrainComposer to create terrain, and improve the scene; drag the file into the subdirectory of the corresponding project of Unity3d , to complete the import of the model.

Further, the logical architecture design process of the Unity virtual scene is:

The user needs to select an end point first, and the end point represents the target position;

The user starts from a specific target starting point. Before reaching the target position, the platform continuously detects the user's movement. If the user's movement is detected, then in the virtual scene, the game character will also move in the direction of the user's movement. Otherwise, the game character will remain Do not move;

When the game character in the scene reaches the end point, the game ends, and the statistics of the movement time and the user's movement speed are given.

Further, the stereoscopic display unit uses a video cable to duplicate and display the output of the computer, and can be viewed in split screens by left and right eyes.

Further, the virtual reality glasses adopt Oculus Rift.

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

Example

As shown in Figure 1, the present invention relates to a kind of indoor cycling fitness system based on virtual reality glasses, including motion data acquisition unit, wireless transmission unit, software processing unit and stereoscopic display unit, wherein

The motion data acquisition unit includes a Hall sensor, an Arduino controller and a wireless module, and the Arduino controller continuously obtains human body motion data from the output end of the Hall sensor, and then sends the data to the wireless device through a wireless transmission module after processing. transmission unit;

The wireless transmission unit is used to transmit the received data to the software processing unit;

Described software processing unit comprises Unity module, and this software platform is used for the construction of virtual reality scene, realizes the design of game logic scene according to the data of acquisition unit simultaneously;

The stereoscopic display unit includes virtual reality glasses Oculus Rift, which is used for stereoscopically displaying a synchronized virtual scene, and the rotation of the user's head can be detected by the gyroscope attached to the Oculus Rift.

The motion data acquisition unit is shown in Figure 2. The Hall sensor needs to be used in conjunction with the magnetic steel to detect the user's movement speed. The Hall sensor is installed at the heel of the user's shoes, and the magnetic steel is placed directly below the Hall sensor. The effective detection position, and when the Hall sensor is opposite to the magnetic steel, there will be a pulse output to the Arduino controller, so the user's movement speed can be measured through the pulse number, and the data can be used to judge whether the user starts to move and can calculate the movement speed. For example, in the motion detection device implemented by Arduino, 1 and 0 are used to transmit the stepping information of the current user's feet, 1 means that the foot is at the lowest point of the riding pedal, and 0 means that the pedal is off the lowest point. Alternating 1s and 0s represent the user's running motion, while continuous 1s represent the user's stillness.

The speed of the bicycle is mainly measured according to the pulse count. The frequency of the pulse signal output by the Hall element is proportional to the speed. The relationship between the pulse signal and the speed is as follows:

In the formula: n is the bicycle speed, P is the number of pulses that the bicycle wheel rotates a circle, and T is the period of the output square wave signal. According to the formula (1), the speed of the bicycle can be calculated. The present invention measures the speed of the left and right foot movements , and then take the average value, and then send this data to the software processing unit.

The software processing unit uses Unity's three-dimensional engine and physics engine to realize road collision detection including uphill and downhill, and controls the use of game characters together with the user's input under its restrictions, and uses the first-person character to realize the control. The first-person character control means that the perspective displayed by the game is simulating the perspective seen by the user's real eyes. Unlike the third-person view, the user cannot see the back of the character he is controlling in the first-person view, because the position of the camera in the scene is always tied. Set the position of the game character's glasses.

The building steps of the 3D scene are:

First of all, before making a 3D scene, first draw up a rough sketch of the 3D scene, including the overall environment, weather, and field of vision. This platform uses an outdoor green hillside with a relatively wide field of view in clear weather as the scene;

Then there is the terrain creation. Purchase and download the terrain generation plug-in TerrainComposer in the Asset Store provided by Unity, and use this plug-in to create terrain. After the terrain is obtained, further add some models to improve the whole scene, for example, you can add residential houses or passers-by on the roadside in the scene; the model is generated by using 3D modeling software.

Finally, after the model file is generated, drag the file into the subdirectory of the corresponding Unity3d project to complete the import of the model.

The logical architecture design of the Unity virtual scene is as shown in Figure 3: first, the user needs to select an end point, which represents the target position; then, the user starts from a specific target starting point, and before reaching the target position, the platform continuously detects the user's Action, if the user's movement is detected, then in the virtual scene, the game character will also move in the direction of the user's movement, otherwise, the game character will remain motionless; when the game character in the scene reaches the end point, the game ends and the movement is given Time and user motion velocity statistics.

The stereoscopic display unit uses video lines such as HDMI lines to directly copy and display the output of the computer, and can be viewed in split screens by left and right eyes.

The specific implementation of the indoor cycling fitness system of this embodiment is: the motion data acquisition unit sends the collected user motion information to the software processing unit through the wireless transmission unit, utilizes the Unity module to control the change of the three-dimensional virtual and real scene according to the motion information, and then passes Oculus Rift stereoscopic display glasses for simultaneous display.

Claims (8)

1. An indoor cycling fitness system based on virtual reality glasses, characterized in that it includes a motion data acquisition unit, a software processing unit, a wireless transmission unit and a stereoscopic display unit, wherein The motion data acquisition unit includes a Hall sensor, an Arduino controller and a wireless transmission module, the Hall sensor is used to collect human body motion data, and the Arduino controller constantly obtains human body motion data from the output end of the Hall sensor, so The wireless sending module is used to send data to the wireless transmission unit; The wireless transmission unit is used to transmit the received data to the software processing unit; Described software processing unit comprises Unity module, and this module is used for the construction of virtual reality scene, carries out the logical design of virtual scene according to the data of acquisition unit simultaneously; The stereoscopic display unit includes virtual reality glasses for stereoscopically displaying a synchronized virtual scene, and detects the rotation of the user's head through a built-in gyroscope. 2. The indoor cycling fitness system based on virtual reality glasses according to claim 1, characterized in that, the Hall sensor is used in conjunction with the magnetic steel to detect the user's movement speed; the Hall sensor is installed on the user's shoes At the heel, the magnetic steel is placed at the effective detection position directly below the Hall sensor; When the Hall sensor is opposite to the magnetic steel, it will generate a pulse output to the Arduino controller, and measure the user's movement speed through the number of pulses. 3. The indoor cycling fitness system based on virtual reality glasses according to claim 1, wherein the human body motion data refers to the user's speed of motion, the bicycle speed is measured according to the pulse count, and the pulse output by the Hall sensor The signal frequency is proportional to the bicycle speed, and the pulse signal has the following relationship with the bicycle speed: $\mathrm{<span\; class="notranslate">\; no</span>}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 60</span>}}{\mathrm{<span\; class="notranslate">\; P</span>}\mathrm{<span\; class="notranslate">\; T</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$ In the formula, n is the speed of the bicycle, P is the number of pulses of the bicycle wheel, and T is the period of the output square wave signal; Calculate the speed of the bicycle according to formula (1), measure the speed of the left and right feet, and then take the average value, and then send the data to the software processing unit. 4. The indoor cycling fitness system based on virtual reality glasses according to claim 1, wherein the software processing unit utilizes the three-dimensional engine and the physics engine of Unity to carry out collision detection of the road, and jointly controls the game with the user's input The role is played and controlled by the first-person character. 5. The indoor cycling fitness system based on virtual reality glasses according to claim 1, characterized in that, the construction process of the virtual reality scene is specifically: drawing up a general sketch of the three-dimensional scene, including the overall environment, weather and field of view; Use the plug-in TerrainComposer to create terrain and improve the scene; drag the file into the subdirectory of the corresponding project of Unity3d to complete the import of the model. 6. the indoor cycling fitness system based on virtual reality glasses according to claim 1, characterized in that, the logic architecture design process of the Unity virtual scene is: The user first selects an end point, which represents the target position; The user starts from a specific target starting point. Before reaching the target position, the platform continuously detects the user's movement. If the user's movement is detected, then in the virtual scene, the game character will also move in the direction of the user's movement. Otherwise, the game character will remain Do not move; When the game character in the scene reaches the end point, the game ends, and the statistics of the movement time and the user's movement speed are given. 7. The indoor cycling fitness system based on virtual reality glasses according to claim 1, wherein the stereoscopic display unit uses a video cable to copy and display the output of the computer, and can be viewed in split screens by left and right eyes. 8. The indoor cycling fitness system based on virtual reality glasses according to claim 1, wherein the virtual reality glasses adopt Oculus Rift.