CN103199766A - Omnidirectional freely-moving device - Google Patents
Omnidirectional freely-moving device Download PDFInfo
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- CN103199766A CN103199766A CN 201310140180 CN201310140180A CN103199766A CN 103199766 A CN103199766 A CN 103199766A CN 201310140180 CN201310140180 CN 201310140180 CN 201310140180 A CN201310140180 A CN 201310140180A CN 103199766 A CN103199766 A CN 103199766A
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- omniranges
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- freely device
- directional ball
- move freely
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Abstract
The invention relates to an omnidirectional freely-moving device. A movement platform is formed by hermetically wrapping a basin-shaped base with a plurality of universal balls closely distributed on an outer surface, a permanent magnet group fixed in a cavity and a downward opening through a hollow spherical movement body and can permit a user to stand and move; and the movement platform is magnetically suspended in the air and supported without being contacted under the repulsion force action of the mutual repulsion of the same magnetic poles between magnets. The omnidirectional freely-moving device disclosed by the invention realizes that the motion of the movement body is matched with the motion of the user under the driving of a power unit, realizes that the user can omnidirectionally and freely move in situ on the movement platform, indicates the position and motion, which correspond to the position and motion of the user in a real space, of virtual reality and finally realizes that the user moves in an infinite space in the virtual reality by only moving in situ.
Description
Technical field
The present invention relates to a kind of user of realization and carry out the device that omnirange moves freely in the original place, be specifically related to a kind of omnibearing device that moves freely in the virtual reality that is applicable to.
Background technology
Virtual reality is to utilize computer simulation to produce a three-dimensional virtual reality, can anthropomorphic dummy's omnibearing moving freely in infinite space in virtual reality, but in fact the user can only move in conditional real space, moves freely as the omnibearing of people in the virtual reality so the user can not be real.In order to solve this difficult problem, the big ball device of a kind of rotation has appearred, this device mainly adopt one can be at the closed hollow that support rotates freely big ball, the user enters ball inside, action such as finish walking at the ball inner surface, turn to.The deficiency that this form exists mainly shows: the volume of ball is very big, general diameter is the twice of people's height, the space of occupying can be very big, this does not just conform to limited space requirement, and its cost of manufacture is higher, ease of use is undesirable, and these shortcomings have caused it to have only very little range of application.
Summary of the invention
The purpose of this invention is to provide a kind of omnirange and move freely device, can allow the user carry out unlimited omnirange in limited realistic space moves freely, and satisfy simple in structure, volume is little, freedom of motion is smooth and easy, manufacture difficulty is little, cost is low, widely used requirement, but also will be applicable to user's omnibearing moving freely in virtual reality.
In order to realize the purpose of foregoing invention, the technical solution used in the present invention is: the application magnet magnetic pole same sex is repelled each other, the magnetic levitation technology of principle of opposite sex attraction, uses and rolls flexibly, has the multi-directional ball of better slip ability, has used sensor detecting device.
The motion platform, be the movable body of hollow spheres by one, sealed packet wraps an intimate and is arranged with a plurality of multi-directional ball, and set of permanent magnets is arranged fixedly in the cavity, and the pedestal of the round basin shape that Open Side Down constitutes, the profile of motion platform such as the spheroid of horizontal placement, what wherein constitute the motion platform straightly goes up the zone of standing and move for the user in the plane, and movable body can move to all directions centered by pedestal under the slip of multi-directional ball.
The motion platform places the top of the suspension base magnet group that is fixed in support, suspension base magnet group is relative with the set of permanent magnets like pole that constitutes the motion platform, thereby produce the magnetic suspension of repulsion type, motion platform magnetcisuspension floats on the suspension base magnet group, forms the motion platform by contactless picking-up.Cover spacing down, the motion platform is suspended between support and the cover, the position transducer that is fixed in cover catches user's positional information, and be sent to controller, receive and handle by controller, controller is according to the processing of location information, current strength, direction, duration that the control power pack is exported to power unit, thereby the movement person's of being used of control power unit actuation movement body movement, and produce indication and the position of user in realistic space and position and the movement of mobile phase corresponding virtual reality.
The invention has the beneficial effects as follows, the user can carry out omnidirectional movement easily, freely in the original place, walking, run, stop, turn to, turn round, being displaced sideways as the nature in the daily life, and user's position also has corresponding position and movement with moving in virtual reality, emulation fields such as virtual roaming, recreation can be widely used in, educational training, body building and amusement and recreation can be applied to.
Specific embodiments
In Fig. 1 to Fig. 3, omnirange moves freely device and is made of: motion platform, support 22, suspension base magnet group 14, power unit, isolated tube 21, cover, controller 23, power pack 24.The motion platform is to be made of: movable body 1, multi-directional ball 2, pedestal 3, set of permanent magnets 4, susceptor posts 5, base seat lid 6, directed permanent magnet 7; Power unit is made of support 15, drive 16, constraint pipe 17, support spring 18, steer motor 19, mobile motor 20; Cover is made of lid 8, axial clearance transducer 9, lateral clearance transducer 10, position transducer 11, tractive electromagnet 12, multi-directional ball 13.
In Fig. 1, first embodiment shown in Figure 2, the structure of motion platform is: movable body 1 wraps the surface and closely arranges pedestal 3 and the susceptor posts 5 that multi-directional ball 2 is fixedly arranged, and set of permanent magnets 4, directed permanent magnet 7 are wherein fixedly arranged in pedestal 3 cavitys.
Set of permanent magnets 4, it is the basic element of character of realizing that whole motion platform suspends, it can be an annular permanent magnet or a cheese permanent magnet, also can be formed by the permanent magnet of polylith annular or cheese, can also be formed by the permanent magnet of other shape of polylith, but the last profile that forms be annular or cheese, annular that the present invention is preferred, and be annular.Set of permanent magnets 4 vertical centers are fixed in the inwall top of pedestal 3 cavitys.Permanent magnet is exactly the magnet that can keep its magnetic for a long time, as loadstone (magnetic iron ore) and artificial magnet steel (iron nickel cobalt magnet steel) and ndfeb magnet.
Directed permanent magnet 7, it is permanent magnet, be fixed in the periphery in pedestal 3 cavitys, but the quantity that it should be noted that directed permanent magnet 7 and tractive electromagnet 11 is identical, the position is identical, and the permanent magnet 7 of per two adjacent fixed will maintain a certain distance, and preferred distance is greater than permanent magnet 7 itself, quantity about permanent magnet 7, should remain on 3～8, present embodiment has been selected 4 for use, in the cavity that is fixed in pedestal 3 that distributes relatively and uniformly in twos respectively around.
Suspension base magnet group 14, be fixed in support 22, formed by the polylith electromagnet, also can be superconductor, high-temperature superconductor, but because the application cost of back two kinds of magnets is too high, realization difficulty height, so present embodiment is preferred electromagnet, the reason of preferred electromagnet is: the magnetic force size of electromagnet and have or not power that can be by the control electric current and have or not to realize.Electromagnet can be cylindricality or annular, electromagnet is all around around arranging circular array in other words conj.or perhaps, and the interior ring of electromagnet annular array will keep the space that can place power unit and isolated tube 21, and electromagnet base magnet group 14 and the permanent magnet 4 that just suspend is relative for like pole.After inserting enough strong electric current for the electromagnet of suspension base magnet group 14, the motion platform is placed the top of suspension base magnet group 14, the platform of motion at this moment can be suspended in the top of suspension base magnet group 14.Here need the suspension of motion platform is illustrated especially, suspension base magnet group 14 is that like pole is relative with the set of permanent magnets 4 of side's placed on it formation motion platform, because magnet has the advantages that the magnetic pole same sex is repelled each other, there is a natural attraction between the sexes, so suspension base magnet group 14 is producing enough strong magnetic repulsion type magnetic suspension of formation between enough strong magnetic force and the set of permanent magnets 4 under the enough strong function of current, make whole motion platform magnetcisuspension float on the top of suspension base magnet group 14, the motion platform is by contactless picking-up.Further optimization based on above-mentioned suspension base magnet group 14 structures: the space mounting permanent magnet (not shown in Fig. 1 and Fig. 2) in the middle of the peripheral space of electromagnet annular array is removed annular, the magnetic pole of permanent magnet is same relative with set of permanent magnets 4 like poles, can produce repulsive force equally, help the maglev reality of motion platform, the adding of permanent magnet can reduce the energy consumption of electromagnet, and the effect of energy-conserving and environment-protective is arranged.
Isolated tube 21 is inserted the intermediate space of suspension base magnet group 14 between two parties, and is fixed in support 22.Be to transfinite the protection when falling of motion platform, surpass loading weight or the outage of magnetic suspension maximum as the load-carrying of motion platform in suspension, the motion platform magnetic suspension insufficient height occurs or falls suddenly, causes existing movable body 1 impaired risk.Isolated tube 21 also plays the effect every magnetic, cuts off the magnetic field of suspension base magnet group 14 the operation generation of steer motor 19 and mobile motor 20 is disturbed.
Power unit is made up of: support 15, drive 16, constraint pipe 17, support spring 18, steer motor 19, mobile motor 20, and the effect of power unit is that the movement for movable body 1 provides power; Design feature is: constraint pipe 17 is inserted the intermediate space of isolated tube 21 between two parties, and be fixed in support 22, and support spring 18 and steer motor 19 are inserted constraint pipe 17 successively, and support 15 is connected with steer motor 19, at the fixing mobile motor 20 of support 15, drive 16 is connected with mobile motor 20; Support support 15, mobile motor 20, drive 16 from structure steer motor 19, support and steer motor 19 is supported springs 18.Under the constraint of constraint pipe 17, support spring 18 is supporting the variation of steer motor 19 upper-lower positions, finally is implemented under the support of support spring 18, and drive 16 contacts with the movable body 1 of motion platform in the magnetic suspension all the time.Wherein steer motor 19 driving arms 15 rotate, and support 15 drives mobile motor 20 and drive 16 changes direction, realizes changing the moving direction of actuation movement body 1.Mobile motor 20 drives drive 16 and rotates, and realizes the movement of actuation movement body 1 on current direction.
Cover is to be made of: lid 8, axial clearance transducer 9, lateral clearance transducer 10, position transducer 11, tractive electromagnet 12, multi-directional ball 13; The profile of lid 8 is annular, by not by attraction, do not have magnetic, the plastics that are not magnetized, carbon fiber, titanium alloy, aluminium or contain the alloy material manufacturing of aluminium, it is fixed in the top of support 22, and the motion platform is comprised in the space between cover and the support 22.The annular mouth diameter of lid 8 makes 8 pairs of motion edges of table of lid block less than the diameter of motion platform.The main effect of cover is the vertical and horizontal position of the motion platform in the restriction magnetic suspension, wherein axial clearance transducer 9 is fixed in lid 8 inner tops, detecting head is downward, relative with the end face of motion platform, its effect is to monitor motion platform in the magnetic suspension and the longitudinal pitch between the cover in real time, and the real-time longitudinal pitch information that will monitor sends to the controller 23 that is fixed in support 22; Wherein lateral clearance transducer 10 is fixed in lid 8 inner tops, detecting head points to the side of motion platform, its effect is to monitor motion platform in the magnetic suspension and the horizontal spacing between the cover in real time, and the real-time horizontal spacing information that will monitor sends to the controller 23 that is fixed in support 22; Position transducer 11 is infrared ray sensors, comprise infrared emission tube, infrared receiver tube and change-over circuit, at the circuit board that is equipped with change-over circuit arrange infrared transmitting tube and infrared receiving tube, four circuit boards are individually fixed in lid 8 inner tops four limits, at X, on the Y-direction one by one the corresponding infrared ray matrix that intersects anyhow that forms cover whole lid 8 intermediate annular mouths, for detection of and locate the position of user's pin, when user's pin is placed on the motion platform, pin will block two infrared rays anyhow through this position, thereby can judge the reposition of pin on the motion platform, and location of capture information is sent to controller 23.But it should be noted that: the fixed position of position transducer 11 must guarantee to avoid being blocked by other parts, and infrared ray matrix also should remain on the motion platform and allow the highest levitation position top, guarantees that infrared ray matrix is positioned at the top of motion platform all the time; Tractive electromagnet 12 is electromagnet, and its quantity is identical with directed permanent magnet 7, is individually fixed in four jiaos of cover 8.Particularly the magnetic pole of tractive electromagnet 12 is relative with the magnetic pole opposite sex of directed permanent magnet 7, and the position of adjustment motion platform, make directed permanent magnet 7 relative with tractive electromagnet 12, the attraction of the 12 pairs of directed permanent magnets 7 of tractive electromagnet after the energising is exactly the effect that the lateral attitude of the motion platform in the magnetic suspension has been played traction and corrected, and can also avoid pedestal 3 rotation to occur under the effect of this tractive effort; Multi-directional ball 13 is runners multi-directional ball; it is arranged around the side of normal motion platform in suspension center line and is fixed in the lid 8; maintain a certain distance with the side of telemechanical platform; this distance is exactly the lateral shift distance of motion platform maximum in suspension; multi-directional ball 13 is the pressure restrictions to the lateral attitude of in suspension motion platform, and the motion platform is had protective effect again.
Second embodiment shown in Figure 3 is with first embodiment difference: the formation of motion platform and structural different.And the structure of other parts except the motion platform, characteristics, function, assembling and fixed form are all identical with first embodiment, and the requirement to the parts manufactured materials is suitable equally in the present embodiment with explanation in first example.
In the present embodiment, the motion platform is made of: movable body 1, multi-directional ball 2, pedestal 3, set of permanent magnets 4, susceptor posts 5, base seat lid 6, directed permanent magnet 7; The structure of motion platform is: base seat lid 6 is fixed in the bottom opening of pedestal 3, make the spheroid of a sealing of pedestal 3 formation of profile such as inverted round basin shape, set of permanent magnets 4 and susceptor posts 5 are fixed in the inwall top of pedestal 3 between two parties in the pedestal 3 of sealing, the height of set of permanent magnets 4 and susceptor posts 5 is identical with the pedestal of sealing 3 inner chamber height, and wherein the pedestal 3 of 5 pairs of sealings of susceptor posts is played a supporting role.4 directed permanent magnets 7 fixedly are arranged, around the cavity that is fixed in pedestal 3 of distributing relatively and uniformly in twos respectively is interior in pedestal 3 cavitys.Multi-directional ball 2 in the present embodiment is waist seat multi-directional ball, and as shown in Figure 5, it contains waist seat 32 and ball 33, and its ball 33 has two relative positions exposed, can be simultaneously and two object sliding contacts, and be to slide to two opposite directions simultaneously.Use waist seat multi-directional ball in the present embodiment, exactly because it has the characteristics of two-way slip, can further reduce the frictional resistance that movable body 1 is subjected to when mobile.Link together with steel wire between a plurality of multi-directional ball 2, maintain a certain distance between the multi-directional ball 2, form the spherical net of a sealing, and the mesh size of spherical net is firm by the distance between the multi-directional ball 2.The spherical net that forms is wrapped in the surface of the pedestal 3 of sealing, and sliding contact between pedestal 3 and the base seat lid 6, this moment, the profile of spherical net was identical with the profile of the pedestal 3 of sealing, was elliposoidal, and spherical net can move freely to all directions along the profile of the pedestal 3 that seals.Movable body 1 is wrapped in the outer surface of spherical net, constitutes the motion platform, and the profile of motion platform keeps the profile of the pedestal 3 of sealing, is elliposoidal, and movable body 1 can the profile along the platform that moves move freely to all directions under the slip of multi-directional ball 2.
Operation principle: the motion platform of the ellipsoid bodily form, the zone that the top person of being to use that it is straight stands and moves, the movable body 1 of spherical hollow body can the spheroid profile along the platform that moves move freely to all directions under the slip of multi-directional ball 2.The motion platform places the top of the suspension base magnet group 14 that is fixed in support 22, the set of permanent magnets 4 that constitutes the motion platform this moment is relative for like pole with suspension base magnet group 14, under the repulsion effect that the generation same sex is repelled each other between set of permanent magnets 4 and the suspension base magnet group 14, motion platform magnetcisuspension floats on the top of suspension base magnet group 14, and the motion platform is by contactless picking-up.The motion platform is spacing following cover, between the suspension of all-the-time stable and cover and the suspension base magnet group 14, making between 1 of movable body and the multi-directional ball 2 has contact friction, and multi-directional ball 2 is rolled flexibly in addition, makes movable body 1 to move freely to all directions under the slip of multi-directional ball 2.Though the movement of movable body 1 can be very light level and smooth, but in the time of on the user stands it, user's body weight will increase the pressure of movable body 1 and multi-directional ball 2 contact-making surfaces, and the motive force to movable body 1 that the user produces when normally moving possibly can't allow movable body 1 easily mobile or even can't move, so also need an extra power to come the movement of synkinesia body 1, this is the necessity that the motoricity unit exists.After the user is moved on the motion platform, what be positioned at motion platform top arranges the position that the infrared ray matrix induction zone that intersects anyhow that constitutes just can catch and identify user's pin by position transducer 11, and send positional information to controller 23, control the current strength that power pack 24 is exported to power unit by controller 23 according to the result of location information, direction, duration, control steer motor 19, the operating state of mobile motor 20, and the distance of carrying out appointment with the speed of appointment to the direction of appointment by drive 16 actuation movement bodies 1 moves, thereby realize that finally the user can carry out omnirange and move in the original place freely on the motion platform, as walking of the nature in the daily life, run, stop, turn to, turn round, be displaced sideways, and controller 23 produces indication and the position of user in realistic space and position and the movement of mobile phase corresponding virtual reality simultaneously, final realization user only moves in the original place, and is mobile in immensity in virtual reality.
Claims (21)
1. an omnirange moves freely device, is characterised in that, it is made of: motion platform, support (22), suspension base magnet group (14), power unit, isolated tube (21), cover, controller (23), power pack (24).
2. a kind of omnirange as claimed in claim 1 moves freely device, it is characterized in that, described motion platform by: one is the movable body (1) of hollow spheres, sealed packet wraps an intimate and is arranged with a plurality of multi-directional ball (2), and set of permanent magnets (4) is arranged fixedly in the cavity, and the pedestal (3) of the round basin shape that Open Side Down constitutes, and the profile of motion platform is elliposoidal.
3. a kind of omnirange as claimed in claim 1 moves freely device, it is characterized in that, described power unit is made of: support (15), drive (16), constraint pipe (17), support spring (18), steer motor (19), mobile motor (20).
4. a kind of omnirange as claimed in claim 1 moves freely device, it is characterized in that described cover is made of: lid (8), axial clearance transducer (9), lateral clearance transducer (10), position transducer (11), tractive electromagnet (12), multi-directional ball (13).
5. move freely device as claim 1 and 2 described a kind of omniranges, it is characterized in that described motion platform comprises set of permanent magnets (4).
6. move freely device as claim 1,2,5 described a kind of omniranges, it is characterized in that, the component movement body (1) of described motion platform can move to all directions centered by pedestal (3) under the slip of multi-directional ball (2).
7. move freely device as claim 1,2,5,6 described a kind of omniranges, it is characterized in that described motion platform is maglev.
8. move freely device as claim 2,6 described a kind of omniranges, it is characterized in that described movable body (1) is the hollow body of spheroidal.
9. move freely device as claim 2,6,8 described a kind of omniranges, it is characterized in that, described movable body (1) outer surface is coarse or irregular, and inner surface is smooth.
10.1 move freely device as claim 2,6,8,9 described a kind of omniranges, it is characterized in that the manufactured materials of described movable body (1) contains the synthetic of rubber, silica gel, resin or silica gel and resin.
11. move freely device as claim 2,4,6 described a kind of omniranges, it is characterized in that described pedestal (3), susceptor posts (5), base seat lid (6), lid (8) are aluminium, titanium alloy or the alloy material manufacturing that contains aluminium.
12. move freely device as claim 2,4,6,11 described a kind of omniranges, it is characterized in that described pedestal (3) is circle basin shape.
13. move freely device as claim 2,6 described a kind of omniranges, it is characterized in that described multi-directional ball (2) and described pedestal (3) are for fixedlying connected.
14. move freely device as claim 2,6,13 described a kind of omniranges, it is characterized in that described multi-directional ball (2) is the runners multi-directional ball.
15. move freely device as claim 2,6 described a kind of omniranges, it is characterized in that described multi-directional ball (2) is runners multi-directional ball or waist seat multi-directional ball.
16. move freely device as claim 2,6,13,14,15 described a kind of omniranges, it is characterized in that the ball of described multi-directional ball (2) is carbon fiber, titanium alloy, nylon, pottery, glass, aluminium or the alloy material manufacturing that contains aluminium.
17. a kind of omnirange as claimed in claim 1 moves freely device, it is characterized in that, described suspension base magnet group (14) is an electromagnet or forms or contain electromagnet by the polylith electromagnet.
18. move freely device as claim 1 and 17 described a kind of omniranges, it is characterized in that described suspension base magnet group (14) contains permanent magnet.
19. a kind of omnirange as claimed in claim 3 moves freely device, it is characterized in that, described drive (16) remains contact friction with described movable body (1) under the support of described support spring (18).
20. a kind of omnirange as claimed in claim 4 moves freely device, it is characterized in that, described position transducer (11) is infrared ray sensor or laser sensor.
21. move freely device as claim 4 and 20 described a kind of omniranges, it is characterized in that described position transducer (11) constitutes the grid induction zone above described motion platform.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310140180 CN103199766A (en) | 2013-04-23 | 2013-04-23 | Omnidirectional freely-moving device |
| CN201420177187.8U CN203911810U (en) | 2013-04-23 | 2014-04-14 | Omnidirectional free mobile device |
| CN201410147006.1A CN103904953A (en) | 2013-04-23 | 2014-04-14 | Omni-directional free mobile device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310140180 CN103199766A (en) | 2013-04-23 | 2013-04-23 | Omnidirectional freely-moving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103199766A true CN103199766A (en) | 2013-07-10 |
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ID=48722158
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310140180 Pending CN103199766A (en) | 2013-04-23 | 2013-04-23 | Omnidirectional freely-moving device |
| CN201410147006.1A Pending CN103904953A (en) | 2013-04-23 | 2014-04-14 | Omni-directional free mobile device |
| CN201420177187.8U Expired - Fee Related CN203911810U (en) | 2013-04-23 | 2014-04-14 | Omnidirectional free mobile device |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410147006.1A Pending CN103904953A (en) | 2013-04-23 | 2014-04-14 | Omni-directional free mobile device |
| CN201420177187.8U Expired - Fee Related CN203911810U (en) | 2013-04-23 | 2014-04-14 | Omnidirectional free mobile device |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN103199766A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104908A (en) * | 2014-05-06 | 2014-10-15 | 广州杰赛科技股份有限公司 | Movable ball-shaped monitoring device and environment monitoring system |
| CN104906750A (en) * | 2015-06-19 | 2015-09-16 | 李琦锋 | All-directional running machine and game system with same |
| CN107132911A (en) * | 2017-03-13 | 2017-09-05 | 杭州虚之实科技有限公司 | Optical movement detection device based on virtual reality universal walking device |
| CN112985500A (en) * | 2021-02-10 | 2021-06-18 | 广州市影擎电子科技有限公司 | Universal motion system and detection device thereof |
| CN114916797A (en) * | 2022-05-17 | 2022-08-19 | 淄博职业学院 | Display cabinet applying superconducting magnetic suspension technology |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106390372A (en) * | 2016-11-08 | 2017-02-15 | 华南理工大学 | Novel all-directional treadmill based on universal wheel |
| CN109540798B (en) * | 2017-01-17 | 2020-12-29 | 哈尔滨理工大学 | Double-turntable mounting structure and micro-scanning structure with same |
| CN112316414B (en) * | 2020-09-29 | 2023-10-13 | 北京中科汇智融媒体科技有限公司 | Magnetic suspension VR cabin |
-
2013
- 2013-04-23 CN CN 201310140180 patent/CN103199766A/en active Pending
-
2014
- 2014-04-14 CN CN201410147006.1A patent/CN103904953A/en active Pending
- 2014-04-14 CN CN201420177187.8U patent/CN203911810U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104908A (en) * | 2014-05-06 | 2014-10-15 | 广州杰赛科技股份有限公司 | Movable ball-shaped monitoring device and environment monitoring system |
| CN104104908B (en) * | 2014-05-06 | 2017-07-14 | 广州杰赛科技股份有限公司 | Movable ball-type supervising device and environmental monitoring system |
| CN104906750A (en) * | 2015-06-19 | 2015-09-16 | 李琦锋 | All-directional running machine and game system with same |
| CN104906750B (en) * | 2015-06-19 | 2018-01-02 | 李琦锋 | A kind of comprehensive treadmill and the games system with the treadmill |
| CN107132911A (en) * | 2017-03-13 | 2017-09-05 | 杭州虚之实科技有限公司 | Optical movement detection device based on virtual reality universal walking device |
| CN112985500A (en) * | 2021-02-10 | 2021-06-18 | 广州市影擎电子科技有限公司 | Universal motion system and detection device thereof |
| CN114916797A (en) * | 2022-05-17 | 2022-08-19 | 淄博职业学院 | Display cabinet applying superconducting magnetic suspension technology |
| CN114916797B (en) * | 2022-05-17 | 2023-09-15 | 淄博职业学院 | Display cabinet applying superconducting magnetic levitation technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103904953A (en) | 2014-07-02 |
| CN203911810U (en) | 2014-10-29 |
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Application publication date: 20130710 |