CN102645974B - Positioning identification system and method of three-dimensional motions - Google Patents
Positioning identification system and method of three-dimensional motions Download PDFInfo
- Publication number
- CN102645974B CN102645974B CN201210042919.8A CN201210042919A CN102645974B CN 102645974 B CN102645974 B CN 102645974B CN 201210042919 A CN201210042919 A CN 201210042919A CN 102645974 B CN102645974 B CN 102645974B
- Authority
- CN
- China
- Prior art keywords
- reference mark
- less
- axle
- hemisphere
- positioning identification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000033001 locomotion Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 230000001186 cumulative effect Effects 0.000 claims description 12
- 230000000875 corresponding effect Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000011282 treatment Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 101100155204 Mus musculus Ubl5 gene Proteins 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention discloses a positioning identification system of three-dimensional motions and a positioning identification method of three-dimensional motions, wherein only two ordinary sensors (an angle sensor and a displacement sensor) can realize accurate motion identifications, the degree of identification is high, and the cost is low. According to the invention, two threading included angles in the vertical direction and a distance between a control point and a coordinate origin are obtained in a manner that the two sensors are cooperated; precise coordinates on X, Y and Z three-dimensional directions can be identified through a space coordinate operation; and the motion changes of two hands are identified through capturing the coordinates of the control point and the change of the coordinates. The system and the method disclosed by the invention eliminate interference factors like lights, number of controllers and complicated operation treatments, and enable the captured data to be more exact and fast. Simultaneously, the system and the method disclosed by the invention can identify the motions of two hands, so that an effect of multipoint control is achieved, and computer operation control and user experience are further improved.
Description
Technical field
The present invention relates to a kind of three-dimensional motion recognition technology, especially relate to a kind of positioning identification system and recognition methods of three-dimensional motion.
Background technology
At present, three-dimensional motion recognition technology has mainly been used following three kinds of different action recognition technology: gyroscope accelerometer inertia follows the tracks of, without identification point optical identification with there is identification point optical identification.With regard to regard to gyroscope accelerometer inertia tracking technique, owing to can only obtaining five axis informations from controller, so a lot of details is all difficult to realize, for example None-identified human action amplitude, None-identified position of human body change etc.And the technology that relies on optics to identify, ubiquity requires strict (light and shade to light environment, light disturbance etc.), to number of users and position restricted (can only sole user or two user's front and back positions can not be overlapping), refractive body quantity is had to requirement (having identification point identification need to use a plurality of reflective mediums), operand large (conventionally need to be equipped with more than 3.0GHz processor and display chip more than 512MHz), response delay is (more than generally postponing 2 frames, home products is most of postpone 4 frames more than) etc. problem, and these problems are in most cases simultaneous, precision and operating effect have more been reduced.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, the invention provides a kind of positioning identification system and recognition methods of three-dimensional motion.
The technical solution adopted for the present invention to solve the technical problems is: a kind of positioning identification system of three-dimensional motion, comprises computing machine, rotary angle transmitter and stay-supported type displacement sensor; Described rotary angle transmitter comprises hemisphere and detecting head, and hemisphere physical efficiency 360 degree freely rotate, and detecting head, for catching the rotation of hemisphere in x, y direction, is made counting cumulative, and imported cumulative data into computing machine; Described stay-supported type displacement sensor comprises bracing wire, bobbin winoler and detecting head, and bobbin winoler adopts individual pen winding mode, and for the pulling out and regaining of bracing wire, detecting head, for catching the rotation of bobbin winoler, is made counting cumulative, and imported cumulative data into computing machine; The hemisphere of described rotary angle transmitter is enclosed within on the bobbin winoler of stay-supported type displacement sensor, and connects by stationary shaft.
The positioning identifying method that the invention also discloses a kind of three-dimensional motion, comprises the steps:
1) catch the volume coordinate of reference mark in three-dimensional system of coordinate:
Reference mark is positioned to finger upper, by stay-supported type displacement sensor, records reference mark from the distance L of true origin; By rotary angle transmitter, measure two angles, the projection that is reference mark and true origin place straight line in the plane that x axle and y axle form, and the angle between y axle
, another is the angle of reference mark and true origin place straight line and the projection in the plane that x axle and y axle form thereof
;
By following formula, calculate respectively volume coordinate X, Y, the Z of reference mark in three-dimensional system of coordinate:
2) action of obtaining reference mark by calculating the variation of reference mark spatial value changes;
3) computing machine changes the action at the reference mark obtaining to change into corresponding action message, and action message is sent to operating system, completes corresponding operating.
Compared with prior art, good effect of the present invention is: only need two common sensors---a rotary angle transmitter and a displacement transducer, can realize accurate action recognition, resolution is high, with low cost.The present invention adopts usb data line to be connected with main frame, can directly transmit data and power supply by USB interface, and transmission technology is ripe, stable, also can adopt Bluetooth technology to realize wireless transmission simultaneously.The present invention adopts the mode of two sensor synergism work, obtains two line face angles in vertical direction and the distance of reference mark and true origin, by volume coordinate computing, can identify the accurate coordinates on X, Y, Z three-dimensional.Then by catching the variation of coordinate and the coordinate at reference mark, the action of identification both hands changes.The present invention has got rid of light, amount controller, and the disturbing factor such as complex calculation processing, makes the data of catching more accurately, fast.The present invention simultaneously can realize double-handed exercise identification, thereby reaches the effect that multiple spot is controlled, and computation control and user is experienced and obtained higher lifting.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is system architecture schematic diagram of the present invention;
Fig. 2 is system architecture cut-open view of the present invention;
Fig. 3 is the schematic diagram that three-dimensional coordinate of the present invention is caught.
Embodiment
A positioning identification system for three-dimensional motion, as depicted in figs. 1 and 2, comprising: computing machine, and the rotary angle transmitter being connected with computing machine respectively by data line and stay-supported type displacement sensor, wherein:
Rotary angle transmitter comprises hemisphere 1 and detecting head 2; Hemisphere 1 can freely rotate by 360 degree, coordinates detecting head 2 to complete catching of required two angles; Detecting head 2, for catching the rotation of hemisphere 1 in x, y direction, is made counting cumulative, and by data line 7, is imported cumulative data into computing machine.
Stay-supported type displacement sensor comprises bobbin winoler 3, detecting head 4, bracing wire wire hole 5, stationary shaft 6, bracing wire 8 and draw ring 9; Bobbin winoler 3 adopts individual pen winding mode, is responsible for pulling out and regaining of bracing wire, and coordinates detecting head 4 to complete catching of required separation distance; Detecting head 4, for catching the rotation of bobbin winoler 3, is made counting cumulative, and by data line 7, is imported cumulative data into computing machine;
The hemisphere 1 of rotary angle transmitter is enclosed within on the bobbin winoler 3 of stay-supported type displacement sensor, and connects by stationary shaft 6, and stationary shaft 6 adopts gyroscope mode, and vertical direction is the hemisphere 1 of rotary angle transmitter fixedly, and guarantees that 360 degree of hemisphere 1 freely rotate; Bracing wire 8 is nonflexible lines, is difficult for deformation, and data that stay-supported type displacement sensor is surveyed are exactly the change of distance that bracing wire 8 is pulled out and regained by bracing wire wire hole 5.End in wiring 8 is provided with draw ring 9, for being enclosed within finger, conveniently pulls bracing wire 8.
The detecting head 2 of rotary angle transmitter and the detecting head 4 of stay-supported type displacement sensor are all connected with the USB interface of computing machine by data line 7, for the transmission of data and power supply is provided.
A positioning identifying method for three-dimensional motion, comprises the steps:
1) catch the volume coordinate of reference mark in three-dimensional system of coordinate:
As shown in Figure 3, reference mark is positioned to finger upper (draw ring is enclosed within on finger), by stay-supported type displacement sensor, records reference mark from the distance L of true origin; By rotary angle transmitter, measure two angles, the projection that is reference mark and true origin place straight line in the plane that x axle and y axle form, and the angle between y axle
, another is the angle of reference mark and true origin place straight line and the projection in the plane that x axle and y axle form thereof
;
By following formula, calculate respectively volume coordinate X, Y, the Z of reference mark in three-dimensional system of coordinate:
2) action of obtaining reference mark by calculating the variation of reference mark spatial value changes:
When the change of the X at reference mark coordinate figure, show that reference mark is for moving left and right (on the occasion of being a left side for right, negative value); When the change of the Y at reference mark coordinate figure, show that reference mark is for moving forward and backward (on the occasion of being rear for front, negative value); When the change of the Z at reference mark coordinate figure, show that reference mark is for moving up and down (under for upper, negative value being);
3) computing machine changes the action at the reference mark obtaining to change into corresponding action message, and action message is sent to operating system, completes corresponding operating:
Operation is mainly divided into two kinds of patterns: analog mouse pattern and director mode.Under default conditions, be analog mouse pattern, can be manually switched to director mode.
(1) analog mouse pattern:
Cursor can move accordingly according to right hand reference mark in the movement in x, y direction, then by the coordinate on z axle, carrys out the button operation situation of mouse beacon.For example: when z axle value is less than-10, to operating system, transmit the message that left mouse button is pressed; Z axle value from be less than-10 return in-10 to 10 scopes, to operating system, transmit the message that left mouse button is unclamped; When being greater than 10, z axle value transmits to operating system the message that right mouse button is pressed; Z axle value is returned-10 to 10 scopes from being greater than 10, to operating system, transmits the message that right mouse button is unclamped.
Can also judge the action of making when mousebutton is pressed simultaneously.For example: when z axle value is less than-10, if x, y axle value in-10 to 10 scopes time, just transmit to system the message that left mouse button is pressed; When if y value has changed to and has been less than-10 value, just send to system the message that scroll bar moves down one page; When if y value has changed to the value that is greater than 10, just can send the move up message of one page of scroll bar to system; When if x value has changed to and has been less than-10 value, just can send the message that scroll bar is moved to the left one page to system; When if x value has changed to the value that is greater than 10, just can send the move right message of one page of scroll bar to system; Simultaneously can also define the action when x, y axle value are less than-10 simultaneously, x axle value is less than-10 and the action that is greater than 10 of y axle, and x, y axle value are greater than 10 action simultaneously, and x axle value is greater than 10 and the action that is less than-10 of y axle value.
In like manner, when being greater than 10, z axle value also can define 9 kinds of different actions.
Left hand also can operate by controlling the auxiliary right hand in reference mark of left hand simultaneously, completes the effect that multiple spot is controlled.
(2) director mode:
First need the coordinate system at right-hand man place to carry out subregion, in coordinate system space, centered by initial point, to all directions, be divided into 27 square regions:
As being divided into following 27 subregions in the coordinate system at place, left hand reference mark:
Zuo00 district (z is less than-10, and x, y be in being greater than-10, is less than in 10 scope);
Zuo01 district (z is less than-10, and y is in being greater than-10, is less than in 10 scope, and x is less than-10);
Zuo02 district (z is less than-10, and y is in being greater than-10, is less than in 10 scope, and x is greater than 10);
Zuo03 district (z is less than-10, and x is in being greater than-10, is less than in 10 scope, and y is less than-10);
Zuo04 district (z is less than-10, and x is in being greater than-10, is less than in 10 scope, and y is greater than 10);
Zuo05 district (z is less than-10, and x, y are in being less than-10 scope);
Zuo06 district (z is less than-10, and x is less than-10, and y is greater than 10);
Zuo07 district (z is less than-10, and x, y are in being greater than 10 scope);
Zuo08 district (z is less than-10, and x is greater than 10, y and is less than-10);
Zuo10 district (x, y, z is all in being greater than-10, is less than in 10 scope);
Zuo11 district (z is less than in 10 scopes in being greater than-10, and y is in being greater than-10, is less than in 10 scope, and x is less than-10);
Zuo12 district (z is less than in 10 scopes in being greater than-10, and y is in being greater than-10, is less than in 10 scope, and x is greater than 10);
Zuo13 district (z is less than in 10 scopes in being greater than-10, and x is in being greater than-10, is less than in 10 scope, and y is less than-10);
Zuo14 district (z is less than in 10 scopes in being greater than-10, and x is in being greater than-10, is less than in 10 scope, and y is greater than 10);
Zuo15 district (z is less than in 10 scopes in being greater than-10, and x, y are in being less than-10 scope);
Zuo16 district (z is less than in 10 scopes in being greater than-10, and x is less than-10, and y is greater than 10);
Zuo17 district (z is less than in 10 scopes in being greater than-10, and x, y are in being greater than 10 scope);
Zuo18 district (z is less than in 10 scopes in being greater than-10, and x is greater than 10, y and is less than-10);
Zuo20 district (z is greater than 10, x, y in being greater than-10, is less than in 10 scope);
Zuo21 district (z is greater than 10, y in being greater than-10, is less than in 10 scope, and x is less than-10);
Zuo22 district (z is greater than 10, y in being greater than-10, is less than in 10 scope, and x is greater than 10);
Zuo23 district (z is greater than 10, x in being greater than-10, is less than in 10 scope, and y is less than-10);
Zuo24 district (z is greater than 10, x in being greater than-10, is less than in 10 scope, and y is greater than 10);
Zuo25 district (z is greater than 10, x, y in being less than-10 scope);
Zuo26 district (z is greater than 10, x and is less than-10, and y is greater than 10);
Zuo27 district (z is greater than 10, x, y in being greater than 10 scope);
Zuo28 district (z be greater than 10, x be greater than 10, y be less than-10);
When reference mark is in these 27 subregions, can define respectively different actions, as distinguished the upper and lower, left and right four direction key of definition keyboard in Zuo01 district, when Zuo02 district, Zuo03 district, Zuo04 district in reference mark.
Be divided into right 00th ~ 08 district in like manner can to place, right hand reference mark coordinate system, right 10th ~ 18 district, right 20th ~ 28 district, totally 27 subregions, define respectively 27 different operating keys.
Claims (4)
1. a positioning identification system for three-dimensional motion, is characterized in that: comprise computing machine, rotary angle transmitter and stay-supported type displacement sensor; Described rotary angle transmitter comprises hemisphere and detecting head, and hemisphere physical efficiency 360 degree freely rotate, and detecting head, for catching the rotation of hemisphere in x, y direction, is made counting cumulative, and imported cumulative data into computing machine; Described stay-supported type displacement sensor comprises bracing wire, bobbin winoler and detecting head, and bobbin winoler adopts individual pen winding mode, and for the pulling out and regaining of bracing wire, detecting head, for catching the rotation of bobbin winoler, is made counting cumulative, and imported cumulative data into computing machine; The hemisphere of described rotary angle transmitter is enclosed within on the bobbin winoler of stay-supported type displacement sensor, and connects by stationary shaft; Described stay-supported type displacement sensor is for measuring reference mark from the distance L of true origin; Described rotary angle transmitter is used for measuring two angles: the projection that is reference mark and true origin place straight line in the plane that x axle and y axle form, and the angle α between y axle, another is the angle β of reference mark and true origin place straight line and the projection in the plane that x axle and y axle form thereof; Described computing machine is for calculating volume coordinate X, Y, the Z of reference mark in three-dimensional system of coordinate, and the action of obtaining reference mark by calculating the variation of reference mark spatial value changes, the action at the reference mark obtaining is changed and changes into corresponding action message simultaneously, and action message is sent to operating system, complete corresponding operating.
2. the positioning identification system of three-dimensional motion according to claim 1, is characterized in that: described bracing wire is nonflexible line.
3. the positioning identification system of three-dimensional motion according to claim 1, is characterized in that: the end in described bracing wire is provided with draw ring.
4. the positioning identification system of three-dimensional motion according to claim 1, is characterized in that: described stationary shaft adopts gyroscope mode, and vertical direction is the hemisphere of rotary angle transmitter fixedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042919.8A CN102645974B (en) | 2012-02-24 | 2012-02-24 | Positioning identification system and method of three-dimensional motions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042919.8A CN102645974B (en) | 2012-02-24 | 2012-02-24 | Positioning identification system and method of three-dimensional motions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102645974A CN102645974A (en) | 2012-08-22 |
| CN102645974B true CN102645974B (en) | 2014-10-22 |
Family
ID=46658821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210042919.8A Active CN102645974B (en) | 2012-02-24 | 2012-02-24 | Positioning identification system and method of three-dimensional motions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102645974B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111072A (en) * | 2013-01-18 | 2013-05-22 | 王一中 | Virtual potentiometer and operational method thereof |
| CN103111073A (en) * | 2013-01-18 | 2013-05-22 | 王一中 | VP handle and operational method of virtual potentiometer of VP handle |
| CN104238939B (en) * | 2014-08-19 | 2017-10-31 | 深圳市魔眼科技有限公司 | The control system of portable set, contactor control device |
| CN105373213A (en) * | 2014-08-25 | 2016-03-02 | 乐视致新电子科技（天津）有限公司 | Operation identification method and device in human-computer interaction |
| CN105879358B (en) * | 2016-06-15 | 2018-08-28 | 杨明 | Chin-up attainment test instrument |
| CN106927066B (en) * | 2017-03-20 | 2019-03-26 | 上海航天控制技术研究所 | A kind of five axis position markers |
| CN107203271B (en) * | 2017-06-08 | 2020-11-24 | 华南理工大学 | Double-hand recognition method based on multi-sensor fusion technology |
| CN107865662A (en) * | 2017-10-19 | 2018-04-03 | 张滇 | A kind of method and device for identifying limb action |
| CN109850182B (en) * | 2018-10-31 | 2022-04-19 | 中国飞机强度研究所 | Novel three-dimensional displacement measuring device and measuring method |
| CN111273812A (en) * | 2020-01-15 | 2020-06-12 | 深圳市华星光电半导体显示技术有限公司 | Screen touch positioning method and positioning system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009156499A1 (en) * | 2008-06-27 | 2009-12-30 | Movea S.A | Pointer with motion sensing resolved by data merging |
| CN201795785U (en) * | 2010-07-16 | 2011-04-13 | 中国航空工业集团公司西安飞机设计研究所 | Measuring device of space moving point three-dimensional coordinate |
| CN201845422U (en) * | 2010-06-18 | 2011-05-25 | 精伦电子股份有限公司 | Wireless remote control device |
-
2012
- 2012-02-24 CN CN201210042919.8A patent/CN102645974B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009156499A1 (en) * | 2008-06-27 | 2009-12-30 | Movea S.A | Pointer with motion sensing resolved by data merging |
| CN201845422U (en) * | 2010-06-18 | 2011-05-25 | 精伦电子股份有限公司 | Wireless remote control device |
| CN201795785U (en) * | 2010-07-16 | 2011-04-13 | 中国航空工业集团公司西安飞机设计研究所 | Measuring device of space moving point three-dimensional coordinate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102645974A (en) | 2012-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102645974B (en) | Positioning identification system and method of three-dimensional motions | |
| CN103472916B (en) | A kind of man-machine interaction method based on human body gesture identification | |
| US10521011B2 (en) | Calibration of inertial measurement units attached to arms of a user and to a head mounted device | |
| KR101844390B1 (en) | Systems and techniques for user interface control | |
| CN103336580B (en) | A kind of cursor control method of head-wearing device | |
| TWI705356B (en) | Input method and device in virtual reality scene | |
| WO2019222203A1 (en) | Power management for optical position tracking devices | |
| Kaholokula | Reusing ambient light to recognize hand gestures | |
| JP2010231359A (en) | Remote control device | |
| TWI688744B (en) | A measuring device and a measuring method for measuring three-dimensional coordinates of points on surface of an object | |
| EP3486747A1 (en) | Gesture input method for wearable device, and wearable device | |
| CN110377053A (en) | The flight control method and device of unmanned plane | |
| RU179301U1 (en) | VIRTUAL REALITY GLOVE | |
| CN106933385B (en) | A kind of implementation method of the low-power consumption sky mouse pen based on three-dimensional ultrasonic positioning | |
| JP2009258884A (en) | User interface | |
| CN203386146U (en) | Infrared video positioning-based man-machine interactive device | |
| US20190339768A1 (en) | Virtual reality interaction system and method | |
| CN103644894A (en) | Method for object identification and three-dimensional pose measurement of complex surface | |
| WO2023227072A1 (en) | Virtual cursor determination method and apparatus in virtual reality scene, device, and medium | |
| CN202502477U (en) | Air mouse | |
| CN109032395B (en) | Multi-dimensional intelligent control device and method | |
| KR101394279B1 (en) | Method for recognition of user's motion by analysis of depth image and apparatus for analyzing user's motion using the same | |
| WO2021190421A1 (en) | Virtual reality-based controller light ball tracking method on and virtual reality device | |
| CN106799025B (en) | Ball hitting detection method, device, equipment and intelligent terminal | |
| KR20120037739A (en) | User interface device and method based on hand gesture recognition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qian Fanglin Inventor before: Jiang Zhanwei |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170920 Address after: 225400 No. 1, No. 10 middle Garden Road, Taixing Town, Taixing Town, Jiangsu, China Patentee after: Qian Fanglin Address before: 610045, No. 24, south section of first ring road, Chengdu, Sichuan, No. 82804 attached to Wuhou District Patentee before: Jiang Zhanwei |
|
| TR01 | Transfer of patent right | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 210 000 No. 88 Mufu West Road, Gulou District, Nanjing, Jiangsu Province Patentee after: Qian Fanglin Address before: 225400 No. 10, No. 1 Zhongyuan Road, Taixing Town Industrial Park, Taixing City, Jiangsu Province Patentee before: Qian Fanglin |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190925 Address after: 244000 Babai Road, Yian Economic Development Zone, Tongling City, Anhui Province Patentee after: Tongling Chuang Chuang hi tech creation Co., Ltd. Address before: No. 88, Mufu West Road, Gulou District, Nanjing City, Jiangsu Province, 210000 Patentee before: Qian Fang Lin |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211028 Address after: 244000 5 buildings in Tongling Yi An Economic Development Zone, Anhui. Patentee after: Tongling Chaoneng small and medium-sized enterprise Service Co.,Ltd. Address before: 244000 Babai Road, Yi'an Economic Development Zone, Tongling City, Anhui Province Patentee before: Tongling Chuang Chuang hi tech creation Co.,Ltd. |