An inductive virtual reality space positioning system

Abstract

The present invention discloses an inductive virtual reality spatial positioning system, which includes a venue. An activity area is set on the venue; the activity area is divided into multiple activity sub-areas; the venue is provided with guide rails and a moving crossbeam; laser scanning base stations are arranged below the moving crossbeam. A calculation and control center is matched with the activity area, and the calculation and control center is wirelessly connected to the pressure-sensing floor and receives its signals; multiple helmets and handles for wearing are arranged in the venue, and a plurality of laser induction sensor points for sensing lasers are arranged on the outer walls of the helmets and handles; through pressure sensing and the moving positioning of the laser scanning base stations, large-area spatial positioning can be carried out; when carrying out large-area spatial positioning, through zoning, the number of laser scanning base stations used can be reduced, and a better spatial positioning effect can be achieved; through reasonable zoning and alternating scanning, multiple laser scanning base stations will not interfere with each other.

Description

Technical Field

[0001] The present invention belongs to the technical field of virtual reality, and particularly relates to an inductive virtual reality space positioning system. Background Art

[0002] Spatial positioning is a very crucial technology in the virtual reality market. Generally, optical or ultrasonic modes are used for positioning and measurement, and the spatial position of the object to be measured is deduced by establishing a model.

[0003] The virtual reality market has great potential, and more and more manufacturers have started to pour into the VR field. Currently, there are three major VR spatial positioning technologies in the market, namely laser positioning, infrared optical positioning, and visible light positioning, and the corresponding products are HTC, Oculus, and Sony.

[0004] Among them, the Lighthouse positioning of HTC Vive has relatively high accuracy. The basic principle is to install several laser-emitting devices in the space, emit lasers in two horizontal and vertical directions in the space, and multiple laser induction receivers are placed on the object to be positioned. By calculating the angle difference between the two beams of light reaching the positioning object, the three-dimensional coordinates of the object can be obtained. When the object moves, the three-dimensional coordinates will also change accordingly, and the motion information can be obtained to complete the capture of the motion.

[0005] However, the common problem in the virtual reality market is that the site space is relatively small. Especially when multiple people interact, the site is difficult to meet the needs. Because when the site space increases, considering the positioning accuracy and angle of the laser, more laser base stations need to be added, the cost increases, and interference will also occur between them, which is the difficulty restricting the development of current virtual reality spatial positioning. Summary of the Invention

[0006] The present invention provides an inductive virtual reality space positioning system, which can perform large-area spatial positioning through pressure sensing and mobile positioning of laser scanning base stations. When performing large-area spatial positioning, through zoning, the number of laser scanning base stations used can be reduced, and a better spatial positioning effect can be achieved, so as to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: an inductive virtual reality space positioning system, including a site, and an activity area is arranged on the site; the floor of the activity area is paved with pressure sensing floors, and the activity area is divided into multiple activity partitions;

[0008] A guide rail is fixedly arranged on the top of the site, and a moving cross beam located above each activity partition is arranged on the guide rail. Two parallel moving cross beams are arranged above each activity partition, and each moving cross beam can move on the guide rail;

[0009] Laser scanning base stations are provided under the moving crossbeams. Two of the laser scanning base stations above the same active partition are diagonally distributed, and the laser scanning base stations can scan and cover the area of the active partition where they are located.

[0010] Each of the laser scanning base stations includes two laser scanners, one being a first scanner that scans in the vertical direction and the other being a second scanner that scans in the horizontal direction, and the two laser scanners scan alternately.

[0011] A calculation and control center is matched with the activity area. The calculation and control center is wirelessly connected to the pressure sensing floor and receives its signals.

[0012] A plurality of helmets and handles for wearing are provided in the site. A plurality of laser induction sensor points for sensing laser are provided on the outer walls of the helmets and the handles. The calculation and control center is wirelessly connected to the laser induction sensor points and receives their signals.

[0013] Each piece of the pressure sensing floor performs coordinate positioning within the activity area, and the positioning information is stored in the calculation and control center. The positions of the laser scanning base stations are subjected to coordinate positioning, and the positioning information is stored in the calculation and control center. The positions of the moving crossbeams are subjected to coordinate positioning, and the positioning information is stored in the calculation and control center.

[0014] Preferably, two of the guide rails form a group, penetrate through all the active partitions in the same column, and are respectively located at the left and right ends of all the active partitions in the same column.

[0015] Preferably, the moving crossbeams all move on the guide rails through servo drive mechanisms. The servo drive mechanisms are controlled by the calculation and control center, and a trend judgment module is provided in the calculation and control center.

[0016] Preferably, the two laser scanning base stations on the same active partition work alternately.

[0017] Preferably, when the moving crossbeams move, the laser scanning base stations thereon do not work.

[0018] Preferably, the laser scanning base stations in adjacent rows and adjacent columns do not work simultaneously.

[0019] Preferably, the two moving crossbeams on the same active partition do not move simultaneously.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Through pressure sensing and the moving positioning of the laser scanning base stations, large-area spatial positioning can be performed.

[0022] 2. When performing spatial positioning in a large area, through zoning, the number of laser scanning base stations used can be reduced, and a better spatial positioning effect can be achieved.

[0023] 3. Through reasonable zoning and alternating scanning, multiple laser scanning base stations will not interfere with each other.

[0024] 4. Through tracking scanning, the positioning accuracy is higher.

[0025] 5. Through the design of non-simultaneous movement of the laser scanning base station, the movement and positioning of the laser scanning base station do not affect the scanning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view and top view structural schematic diagram of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the activity area and activity partition of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the pressure sensing floor and activity partition of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the laser scanning base station of the present invention;

[0030] Figure 5 It is a control flow schematic diagram of the pressure sensing floor, calculation control center, and trend judgment module of the present invention.

[0031] In the figure: 1. Site; 2. Activity area; 3. Pressure sensing floor; 4. Activity partition; 5. Guide rail; 6. Moving crossbeam; 7. Laser scanning base station; 8. First scanner; 9. Second scanner; 10. Calculation control center; 11. Laser induction sensor points; 12. Trend judgment module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-4, the present invention provides an inductive virtual reality space positioning system, including a venue 1, on which an activity area 2 is provided; the floor of the activity area 2 is paved with pressure sensing floors 3, and the approximate position of the user is sensed by the pressure sensing floors 3 after the user steps on them. The activity area 2 is divided into multiple activity sub-areas 4. Through the multiple activity sub-areas, it is convenient to divide the large activity area and then arrange corresponding laser scanning base stations;

[0034] A guide rail 5 is fixedly provided at the top of the venue 1. A moving cross beam 6 is provided on the guide rail 5 above each activity sub-area 4. Two parallel moving cross beams 6 are provided above each activity sub-area 4. The moving cross beams 6 all move on the guide rail 5. Considering the limited scanning area of the laser scanning base station, if the area is large and arranged completely according to the scanning range of the laser scanning base station, since at least two base stations need to be arranged opposite to each other in one area, the cost is high and there is easy interference between them. Since the user only occupies a limited area when moving in the area, most of the base stations will not be effectively utilized;

[0035] Laser scanning base stations 7 are provided below the moving cross beams 6. The two laser scanning base stations 7 above the same activity sub-area 4 are diagonally distributed. The laser scanning base stations 7 scan and cover the area of the activity sub-area 4 where they are located; by installing the laser scanning base stations 7 on the moving cross beams 6, the positions of the laser scanning base stations 7 are moved accordingly. When the user moves, they move correspondingly and scan close to the user to improve the accuracy and also expand the scanning range of the laser scanning base stations 7. Compared with the fixed laser scanning base stations 7 that need to cover the entire area, only most of the area needs to be covered; for example, when the users are relatively concentrated in the middle of the activity sub-area 4, the two moving cross beams 6 move closer to the middle for scanning; when the users are relatively concentrated in the front or rear of the activity sub-area 4, the two moving cross beams 6 move closer correspondingly for scanning; when the users are scattered in the front, middle, and rear, the two moving cross beams 6 move to the middle position and scan the users in the middle and on the opposite side respectively;

[0036] Each of the laser scanning base stations 7 includes two laser scanners. One is a first scanner 8 that scans in the vertical direction, and the other is a second scanner 9 that scans in the horizontal direction. The two laser scanners scan alternately, emitting laser beams in two directions, horizontal and vertical, in the space. They scan alternately with an interval of 3 milliseconds, which is convenient for the laser induction sensor points 11 to distinguish between the first scanner 8 and the second scanner 9. At the same time, the 3-millisecond interval reduces the positioning error;

[0037] The activity area 2 is matched with a calculation and control center 10. The calculation and control center 10 is wirelessly connected to the pressure sensing floor 3 to receive its signals. After a user steps on the pressure sensing floor 3, it sends signals to the calculation and control center 10. The calculation and control center 10 analyzes the position of the user in real time, predicts the activity trend, and makes a judgment for controlling the movement of the moving crossbeam 6.

[0038] A plurality of helmets and handles for wearing are provided in the site 1. A plurality of laser induction sensor points 11 for sensing lasers are provided on the outer walls of the helmets and the handles. The calculation and control center 10 is wirelessly connected to the laser induction sensor points 11 to receive their signals. A plurality of laser induction sensor points 11 are placed on the user's helmet and handle. By calculating the angle difference between two beams of light reaching the positioning object, the three-dimensional coordinates of the object can be obtained. When the object moves, the three-dimensional coordinates will also change, and thus the action information is obtained to complete the capture of the action.

[0039] Each pressure sensing floor 3 performs coordinate positioning within the activity area 2, and the positioning information is stored in the calculation and control center 10. The position of the laser scanning base station 7 is subjected to coordinate positioning, and the positioning information is stored in the calculation and control center 10. The position of the moving crossbeam 6 is subjected to coordinate positioning, and the positioning information is stored in the calculation and control center 10. Thus, the calculation and control center 10 judges the movement trend of the user in real time, records the position of the laser scanning base station 7 in real time, as well as the position after movement, and further calculates the coordinates of the user after the movement of the laser scanning base station 7.

[0040] Please refer to Figure 1 , two of the guide rails 5 form a group, penetrate through all the activity partitions 4 in the same column, and are respectively located at the left and right ends of all the activity partitions 4 in the same column. In this embodiment, the moving crossbeams 6 in the same column share the guide rails, saving costs.

[0041] Please refer to Figure 5 , the moving crossbeams 6 all move on the guide rails 5 through servo drive mechanisms. The servo drive mechanisms are controlled by the calculation and control center 10, and a trend judgment module 12 is provided in the calculation and control center 10. In this embodiment, after a user steps on the pressure sensing floor 3, it sends signals to the calculation and control center 10. The calculation and control center 10 analyzes the position of the user in real time, predicts the activity trend through the trend judgment module 12, and makes a judgment for controlling the movement of the moving crossbeam 6.

[0042] Please refer to Figure 4 , the two laser scanning base stations 7 on the same activity partition 4 work alternately. In this embodiment, it is convenient for the laser induction sensor points 11 to distinguish the two laser scanning base stations 7 and avoid interference caused by simultaneous scanning.

[0043] Please refer toFigure 1 When the moving crossbeam 6 moves, the laser scanning base station 7 thereon does not work; in this embodiment, the laser scanning base station 7 is wirelessly connected and controlled by the calculation control center 10. When the moving crossbeam 6 moves, the scanning accuracy of the laser scanning base station 7 will be reduced, and scanning work is carried out after moving in place, with high accuracy.

[0044] Please refer to Figure 1 , the laser scanning base stations 7 in adjacent rows and adjacent columns do not work simultaneously; in this embodiment, interference is avoided when the laser scanning base stations 7 in adjacent rows and adjacent columns scan simultaneously.

[0045] Please refer to Figure 1 , the two moving crossbeams 6 on the same movable partition 4 do not move simultaneously; in this embodiment, thus when moving at one place, the scanning of the laser scanning base station 7 is stopped, and the laser scanning base station 7 on the other immovable moving crossbeam 6 continues to scan and position.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inductive virtual reality spatial positioning system, characterized in that, It includes a venue (1), on which an activity area (2) is set. The floor of the activity area (2) is paved with pressure-sensing floors (3), and the activity area (2) is divided into multiple activity sub-areas (4). A guide rail (5) is fixedly arranged at the top of the venue (1). A moving cross beam (6) is arranged on the guide rail (5) above each activity sub-area (4). Two parallel moving cross beams (6) are arranged above each activity sub-area (4), and each moving cross beam (6) can move on the guide rail (5). Laser scanning base stations (7) are arranged below the moving cross beams (6). The two laser scanning base stations (7) above the same activity sub-area (4) are diagonally distributed, and the laser scanning base stations (7) can scan and cover the area of the activity sub-area (4) where they are located. Each laser scanning base station (7) includes two laser scanners, one is a first scanner (8) that scans in the vertical direction, and the other is a second scanner (9) that scans in the horizontal direction. The two laser scanners scan alternately. A calculation and control center (10) is matched with the activity area (2). The calculation and control center (10) is wirelessly connected to the pressure-sensing floors (3) and receives their signals. After a user steps on the pressure-sensing floors (3), the pressure-sensing floors (3) send signals to the calculation and control center (10). The calculation and control center (10) analyzes the position of the user in real time, predicts the activity trend of the user, and makes a judgment for controlling the movement of the moving cross beam (6). Multiple helmets and handles for wearing are arranged inside the venue (1). Laser induction sensor points (11) for sensing laser are arranged on the outer walls of the helmets and the handles. The calculation and control center (10) is wirelessly connected to the laser induction sensor points (11) and receives their signals. Each pressure-sensing floor (3) is positioned by coordinates within the activity area (2), and the positioning information is stored in the calculation and control center (10). The positions of the laser scanning base stations (7) are positioned by coordinates, and the positioning information is stored in the calculation and control center (10). The positions of the moving cross beams (6) are positioned by coordinates, and the positioning information is stored in the calculation and control center (10).

2. The inductive virtual reality space positioning system according to claim 1, wherein The guide rails (5) are grouped in pairs, penetrate through all the activity sub-areas (4) in the same column, and are respectively located at the left and right ends of all the activity sub-areas (4) in the same column.

3. An inductive virtual reality space positioning system according to claim 1, characterized in that, Each moving cross beam (6) moves on the guide rail (5) through a servo drive mechanism. The servo drive mechanism is controlled by the calculation and control center (10), and a trend judgment module (12) is arranged in the calculation and control center (10).

4. An inductive virtual reality space positioning system according to claim 1, characterized in that, The two laser scanning base stations (7) on the same activity sub-area (4) work alternately.

5. An inductive virtual reality space positioning system according to claim 1, wherein When the moving cross beam (6) moves, the laser scanning base station (7) on it does not work.

6. An inductive virtual reality spatial positioning system according to claim 1, characterized in that, The laser scanning base stations (7) in adjacent rows and adjacent columns do not work simultaneously.

7. An inductive virtual reality space positioning system according to claim 1, wherein, The two moving cross beams (6) on the same activity sub-area (4) do not move simultaneously.

Images