CN106693290B - A kind of Spinning Virtual Wandering System and virtual roaming implementation method - Google Patents
A kind of Spinning Virtual Wandering System and virtual roaming implementation method Download PDFInfo
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
- A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
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- A—HUMAN NECESSITIES
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- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/16—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
- A63B2071/0638—Displaying moving images of recorded environment, e.g. virtual environment
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/012—Walk-in-place systems for allowing a user to walk in a virtual environment while constraining him to a given position in the physical environment
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Abstract
The invention discloses a kind of Spinning Virtual Wandering System and virtual roaming implementation methods.Virtual roaming road is generated in virtual scene roaming, after riding speed when riding Spinning body-building by speed measuring device acquisition user, through data communication module in riding speed data input virtual scene roaming, the viewpoint of last riding speed data-driven virtual scene roaming is moved along Roam Path, realizes the virtual roaming of Spinning；Roam Path is to use Catmull-Rom curve interpolation algorithm, roams road control point using original, calculates interpolation point and connects fitting acquisition.The present invention combines virtual reality technology with traditional health bicycle, according to riding speed and virtual environment real-time, interactive, body-building and amusement are combined together, removal people cycle the dull property of body-building within doors, body-building effect is improved, and can be applied to family cycles, gymnasium cycles, VR experience shop cycles, museum's visit cycles, scenic spot visit cycles etc..
Description
Technical field
The present invention relates to Virtual Wandering Systems, more particularly, to a kind of Spinning Virtual Wandering System and virtual roaming
Implementation method.
Background technique
With popularizing for sports body-building theory, the trend and prevailing custom for having become urbanite are taken exercises in cycling.But
It is that Heaven is not cooperative, is covered in the weather of day in sleet hardships, haze, people can not just rides in the outdoor environment of beautiful scenery
Vehicle is taken exercise.Indoors or in gymnasium, people ride common bicycle and take exercises, and can think that dry as dust, interest is complete
Nothing is hesitated to discard really, is had a nasty taste.
Traditional virtual roaming is the roaming under fixed speed, and cycling speed when roaming is continuous dynamic change.
When cycling speed changes, if roam speed remains unchanged, the sense of reality experience of user just will affect.
Patent CN 104794286A constructs route closed curve with Bezier, needs to adjust in closed curve and respectively close
Position, normal direction and the slope of key control point could form route closed curve (i.e. Roam Path).This method not only increases
Add the calculation amount of planed path generation, but also needed the relevant parameter of manual setting Roam Path, leads to Roam Path
Script cannot be reused.
In recent years, the fast development of virtual reality technology, virtual roaming and cycling, which are taken exercise, to be naturally enough just combined together,
The restriction for cycling and taking exercise by conditions such as weather, places is got rid of, and incorporates education, interaction, environmental protection, amusement, entertaining and science
The intensions such as body-building, application prospect are very wide.
Summary of the invention
In order to solve the problems, such as background technique, the invention proposes a kind of Spinning Virtual Wandering System and void
Quasi- method for implementation of roaming.
The technical solution adopted by the present invention is that:
One, a kind of Spinning Virtual Wandering System:
Including Spinning, speed measuring device, data communication module, virtual scene roaming and planed path generation module, use
The viewpoint of riding speed data-driven virtual scene roaming is moved along Roam Path, realizes the virtual roaming of Spinning,
In:
The speed measuring device is connected with Spinning and data communication module respectively, obtains riding for Spinning in real time
Speed data, and by riding speed data transmission to data communication module；
The data communication module connects virtual roaming equipment, by the void of riding speed data input virtual roaming equipment
In quasi- roaming scence, virtual scene roaming obtains Roam Path by the curve calculation method fitting of planed path generation module.
The speed measuring device is measured in real time using the electromagnetic sensor being mounted on Spinning wheel, electromagnetic sensor
The turnning circle of Spinning wheel, and then calculate the riding speed data for obtaining Spinning.
The data communication module uses the wire communication of computer RS232 serial ports or USB serial ports, or using wireless
The riding speed data of Spinning are real-time transmitted to virtual scene roaming by Network Communication or Bluetooth communication.
The planed path generation module uses Catmull-Rom curve interpolation algorithm, using in virtual scene roaming
Original roaming road control point calculates crucial interpolation point in real time, and fitting obtains virtual scene roaming after connecting crucial interpolation point
In Roam Path.
The present invention can quickly generate roaming road and directly fit Roam Path for any Unity3d roaming scence.
Two, a kind of Spinning virtual roaming implementation method:
Obtain the riding speed data of Spinning in real time using speed measuring device, and by riding speed data transmission to data
Communication module, data communication module input riding speed data in the virtual scene roaming of virtual roaming equipment, virtual roaming
Scene obtains Roam Path by the curve calculation method fitting of planed path generation module, virtual with riding speed data-driven
The viewpoint of roaming scence is moved along Roam Path, to realize the virtual roaming of Spinning.
The planed path generation module uses Catmull-Rom curve interpolation algorithm, using in virtual scene roaming
Original roaming road control point calculates crucial interpolation point in real time, and fitting obtains virtual scene roaming after connecting crucial interpolation point
In Roam Path.
It is specific as follows that acquisition Roam Path is fitted by curve calculation method:
1) the EasyRoads3D inserter tool for using Unity 3D, in virtual scene roaming, on original roaming road
Multiple control points are arranged in interval, and all control points are mutually sequentially connected, and are closed and form closed path；
2) the roaming route being overlapped with roaming road is constructed in the following ways.
2.1) Descartes's left-handed coordinate system is used in Unity 3D, Y axis coordinate direction is perpendicular to virtual scene roaming ground
And point up, X axis coordinate direction and Z axis coordinate direction are two perpendicular sides for being parallel to virtual scene roaming ground
To；
2.2) path point P is converted by all control point assignment that step 1) obtains1、P2、。。。、Pn, n expression control point
Sum, and increase an XYZ coordinate value behind the final path point after assignment conversion and be equal to first path point coordinate value
Path point Pn+1；
2.3) head and the tail of all path points obtained in step 2.2) increase by two auxiliary magnet P0And Pn+2, head and the tail two it is auxiliary
Coordinate position a little is helped to calculate in the following ways:
P0=2P1-P2
Pn+2=2Pn+1–Pn
Wherein, P0For the auxiliary magnet first of the path point, Pn+2For in the auxiliary magnet of the tail of path point, P1It is obtained for step 2.2)
First path point in all path points obtained, P2Second path point in all path points obtained for step 2.2),
Pn+1For an increased path point after the conversion of step 2.2) assignment, PnFor in all path points after the conversion of step 2.2) assignment
The last one path point；
2.4) the Catmull-Rom curved line arithmetic for using following formula carries out all path points that step 2.3) obtains
Curve interpolation processing, is obtained multiple interpolation points, each interpolation point is sequentially connected in a manner of broken line, curvilinear motion is switched to interpolation point
To the linear motion between interpolation point, Roam Path is obtained:
Wherein, P (s) is path point Pi-1With the interpolation point of path point, Pi-2、Pi-1、PiAnd Pi+1It is successively adjacent road
Diameter point, i are the serial number of path point, and u indicates the ratio parameter of curve interpolation, i.e., interpolation point is in Pi-1To PiPercentage, work as u=0
When, interpolation point is in Pi-1Place, as u=1, interpolation point is in PiPlace.τ indicates curve tension parameters.
In specific implementation, u value range is that 0~1, τ is generally taken as 1/2, adjusts interpolation point position by adjusting the value of u
And number.
Preferably, in the step 1) when multiple control points are arranged in interval on original roaming road, except two controls of head and the tail
System point is outer, and the big place of curvature is arranged in remaining control point.Curvature refers to greatly P as shown in Fig. 40、P3Road between point
Corner, interpolation are in P1, P2Between point.
Assignment conversion in the step 2.2) is plus roaming angular height constant using the Y axis coordinate at control point as road
The Y axis coordinate of diameter point, the X axis coordinate of path point, Z axis coordinate are identical with control point X axis coordinate, Z axis coordinate respectively.
It is compared with existing system and method, advantages of the present invention and remarkable result are:
The present invention can quickly complete the building of virtual roaming road, simple and feasible, and facilitate modification, reduce
The workload that road is built.
The present invention uses Catmull-Rom curved line arithmetic, it is only necessary to utilize the control used when building virtual roaming road
Point position, is not required to the normal direction and slope at adjustment control point, can calculate crucial interpolation point in real time, fit virtual roaming
Navigation in scene path substantially reduces the workload of building Roam Path curve, and Catmull-Rom curved line arithmetic
Script can reuse.
The Catmull-Rom curved line arithmetic calculation amount that the present invention uses is small, and Roam Path flatness generated is good, is promoted
User cycles the feeling of immersion of roaming.
The present invention cycles place suitable for a variety of body-building, for example, family cycles, gymnasium cycles, VR experience shop cycles,
Museum's visit cycles, scenic spot visit cycles etc..
Detailed description of the invention
Fig. 1 is embodiment virtual roaming equipment overall diagram.
Fig. 2 is the control point schematic diagram that embodiment establishes roaming road.
Fig. 3 is embodiment roaming road textures generation figure.
Fig. 4 is embodiment Catmull-Rom curve interpolation schematic diagram.
Fig. 5 is the entire virtual scene roaming final effect schematic diagram of embodiment lakeside highway scene.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, the present invention generates virtual roaming road in virtual scene first, curved line arithmetic, fitting are then used
Out along the Roam Path of virtual roaming road, riding when user rides Spinning body-building is then obtained by speed measuring device in real time
After scanning frequency degree, riding speed data are inputted in virtual scene roaming through data communication module, last riding speed data-driven
The viewpoint of virtual scene roaming is moved along Roam Path, realizes the virtual roaming of Spinning.
The embodiment of the present invention and its implementation process are specific as follows:
1) roaming highway layout is carried out first, and a road is constructed as roaming road according to existing virtual scene, is used
Route when controlling roaming.
It establishes in the following ways: in the present embodiment, as shown in Fig. 2, using the EasyRoads3D in Unity 3D
Inserter tool places several control points (mushroom phenotypic marker as shown in Fig. 2 in the roaming road of virtual scene roaming
Point), control point can as Markers subobject and be automatically named as Marker0001, Marker0002, Marker0003
Deng.Path is set as being closed in EasyRoads3D, makes a closed path, control point position is adjusted, makes
Curved way radian is more natural, selects suitable road textures, generates roaming road, as shown in Figure 3.
2) the roaming route being overlapped with roaming road is constructed in the following ways, wherein coordinate value used is in flute
In karr left-handed coordinate system.
2.1) the Find function for utilizing Unity, finds Markers object, then obtains all subobjects of Markers
Marker0001, Marker0002, Marker0003 etc. (do not obtain grandson's object), and the position of control point Marker0001 etc. is sat
Mark is assigned to path point P1, P2……Pn.Since roaming visual angle need to be higher than road surface, wherein the Y axis coordinate of path point need to controlled
It makes plus roaming angular height constant on the Y coordinate of point, X, the Z axis coordinate of path point are identical with control point X, Z axis coordinate, i.e., sharp
It is obtained needed for curve interpolation with n control point (mushroom-shaped mark point as shown in Fig. 2) coordinate assignment conversion of roaming road
The preceding n known paths point coordinate wanted.Because embodiment needs to recycle roaming, then increase by (n+1)th path point and make its coordinate etc.
In first path point coordinate.
2.2) after obtaining all path point coordinates, using Catmull-Rom curved line arithmetic, curve interpolation is carried out, is obtained more
A interpolation point.Since Catmull-Rom curve is without two points of head and the tail, need to construct two auxiliary magnet P of head and the tail0And Pn+2.Its
In, P0=2P1-P2, Pn+2=2Pn+1–Pn.Then, curvilinear motion is switched to interpolation point and arrived using Catmull-Rom curved line arithmetic
Linear motion between interpolation point.Wherein interpolation point number is big according to equipment (computer, mobile phone or pad etc.) performance and path curvatures
Small reasonable setting.
Wherein, P (s) is interpolation point, Pi(control of roaming road can be directly utilized in the present embodiment for known paths point
Point is calculated), u value is that 0.5, τ is taken as 1/2.
Catmull-Rom curve interpolation mode is as shown in Figure 4.Assuming that in P1, P2Between be inserted into 10 points, P0, P1, P2, P3
Coordinate points are it is known that then taking τ value is 1/2, and successively u value 1/10,2/10,3/10 ... 1 is substituted into above-mentioned formula, then can be asked
The coordinate value for 10 points that must be inserted into.
2.3) it after the curve interpolation process of upper step being dragged to Camera object, is not required to carry out other operations, when there is speed
When incoming, the smooth roaming of curved path can be fast implemented.
Control point when creation road, this curve interpolation script and creation road are directly utilized due to curve interpolation algorithm
Plug-in unit is reusable together.After creation roaming road, curve interpolation script is dragged on Camera object and completes roaming
The fitting of route.
Thus the present invention can efficiently and rapidly create roaming road and directly fit roaming route, and creation is roamed road
Road and fitting roaming two steps of route, are fused together.Compared to existing method, workload is greatly reduced.
3) riding speed of Spinning is obtained in real time using speed measuring device.
In the present embodiment, the speed measuring device is electromagnetic sensor speed measuring device, can measure Spinning in real time
Riding speed data, without change Spinning mechanical structure, can be conveniently installed on a variety of Spinnings.
4) riding speed is inputted by data communication module by virtual scene roaming, drives the viewpoint of scene with riding speed
It is roamed along virtual roaming path.
In the present embodiment, the communication module is Bluetooth communication, can be the riding speed data reality of Spinning
When be wirelessly transmitted to virtual scene roaming, be suitable for various Spinnings.
As shown in figure 5, the virtual scene roaming of embodiment is Unity 3D scene, operate on mobile terminal PAD, PAD
Fixed placement can reduce the use cost of user immediately ahead of the sight of user, and user is facilitated to obtain good audiovisual feedback.
Claims (2)
1. a kind of Spinning virtual roaming implementation method, it is characterised in that: obtain Spinning in real time using speed measuring device
Riding speed data, and by riding speed data transmission to data communication module, data communication module is defeated by riding speed data
In the virtual scene roaming for entering virtual roaming equipment, virtual scene roaming obtains Roam Path by the fitting of curve calculation method,
It is moved with the viewpoint of riding speed data-driven virtual scene roaming along Roam Path, to realize the virtual unrestrained of Spinning
Trip；
The virtual scene roaming is fitted acquisition Roam Path by curve calculation method: with Catmull-Rom
Curve interpolation algorithm calculates crucial interpolation point using roaming road original in virtual scene roaming control point in real time, and connection is closed
Fitting obtains the Roam Path in virtual scene roaming after key interpolation point；
It is specific as follows that acquisition Roam Path is fitted by curve calculation method:
1) it is spaced on original roaming road in virtual scene roaming using the EasyRoads3D inserter tool of Unity 3D
Multiple control points are set, all control points are mutually sequentially connected, and is closed and forms closed path；
2) the roaming route being overlapped with roaming road is constructed in the following ways；
2.1) in Unity 3D use Descartes's left-handed coordinate system, Y axis coordinate positive direction perpendicular to virtual scene roaming ground simultaneously
Upwards, X axis coordinate direction and Z axis coordinate direction are two perpendicular directions for being parallel to virtual scene roaming ground；
2.2) path point P is converted by all control point assignment that step 1) obtains1、P2、…、Pn, the sum at n expression control point,
And increase the path that an XYZ coordinate value is equal to first path point coordinate value behind the final path point after assignment conversion
Point Pn+1；
2.3) head and the tail of all path points obtained in step 2.2) increase by two auxiliary magnet P0And Pn+2, two auxiliary magnets of head and the tail
Coordinate position calculates in the following ways:
P0=2P1-P2
Pn+2=2Pn+1–Pn
Wherein, P0For the auxiliary magnet first of the path point, Pn+2For in the auxiliary magnet of the tail of path point, P1It is obtained for step 2.2)
First path point in all path points, P2Second path point in all path points obtained for step 2.2), Pn+1For
An increased path point after the conversion of step 2.2) assignment, PnFor last in all path points after the conversion of step 2.2) assignment
A path point；
2.4) the Catmull-Rom curved line arithmetic for using following formula carries out curve to all path points that step 2.3) obtains
Interpolation processing, obtains multiple interpolation points, and each interpolation point is sequentially connected in a manner of broken line, by curvilinear motion switch to interpolation point to insert
Linear motion between value point, obtains Roam Path:
Wherein, P (s) is path point Pi-1With path point PiInterpolation point, Pi-2、Pi-1、PiAnd Pi+1It is successively adjacent path
Point, i are the serial number of path point, and τ indicates that curve tension parameters, u indicate the ratio parameter of curve interpolation.
2. a kind of Spinning virtual roaming implementation method according to claim 1, it is characterised in that: the step 2.2)
In assignment conversion be using the Y axis coordinate at control point plus roaming angular height constant as the Y axis coordinate of path point, path point
X axis coordinate, Z axis coordinate it is identical with control point X axis coordinate, Z axis coordinate respectively.
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