CN105676173A - Indoor positioning system and indoor positioning method - Google Patents
Indoor positioning system and indoor positioning method Download PDFInfo
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- CN105676173A CN105676173A CN201610029239.0A CN201610029239A CN105676173A CN 105676173 A CN105676173 A CN 105676173A CN 201610029239 A CN201610029239 A CN 201610029239A CN 105676173 A CN105676173 A CN 105676173A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 30
- 238000009877 rendering Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000004364 calculation method Methods 0.000 abstract 3
- 238000013500 data storage Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0284—Relative positioning
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention provides an indoor positioning system. The system includes a 3D model drawing module, a 3D model coordinatization module, a parameter setting module, an electromagnetic field intensity calculation module, an electromagnetic field intensity-to-WLAN signal intensity module, an unknown position coordinate calculation module and an output module which are electrically connected in sequence, also includes a WLAN signal intensity detection terminal in wireless connection with the unknown position coordinate calculation module, and also includes a storage module electrically connected with the electromagnetic field intensity-to-WLAN signal intensity module. According to the indoor positioning system and indoor positioning method provided by the invention, first a 3D model is established, 3D coordinate data are converted into WLAN signal intensity for data storage, then a detection terminal is utilized to detect the signal intensity of a WLAN of an unknown position, and according to the WLAN signal intensity, position coordinates corresponding to the WLAN signal intensity are derived reversely, accidental factors for data acquisition which are brought by human factors are weakened, and manpower and material resource cost can be reduced.
Description
Technical field
The present invention relates to indoor positioning technical field, particularly relate to a kind of indoor locating system andIndoor orientation method.
Background technology
Mainly contain two parts data for the existing market indoor locating system that utilizes mobile phone locationSource:
The firstth, " finger print data ", this is in market, to obtain before system drops into, the class of dataType is the coordinate of each point in market and is positioned the mobile phone quilt all AP detections around on this aspectThe signal strength values arriving;
The second data are to obtain after system comes into operation, and the type of data is in unknown pointMobile phone, by the signal strength values that around all detecting terminals detect, has obtained this blocks of data heel and has referred toLine database data is compared, thereby can instead release this cellphone subscriber's position.
In original indoor locating system, because finger print data is to need artificial collection, in idealCondition under be the data that need points all in market. But this is in the situation that artificial form gathersVery unrealistic, the human and material resources of input and time cost are too high, unrealistic, so can only beIn market, plan the representational part location point of wanting image data, then allow people's handheld mobile phoneIn market, gather needed data point. But can because participant too much, thereby be subject to artificial because ofElement impact is very large, and it is out because the acquisition problems of data that the quality of the system of making is difficult to assessmentOr the problem of location algorithm, this can hinder us and do further optimization.
Therefore, need to provide a kind of indoor locating system and indoor orientation method to solve above-mentioned skillArt problem.
Summary of the invention
For solving the problems of the technologies described above, the first technical scheme that the present invention adopts is to provide a kind of indoorNavigation system, comprising:
3D modeling rendering module, for drawing the 3D model in space, location;
3D model coordinate module, for by drawn 3D model coordinate;
Parameter setting module, for giving wall and the door and window setup parameter of the 3D model space;
Electromagnetic field intensity computing module, for according to FDTD principle, by each in 3D modelCoordinate is calculated to be with it electromagnetic field intensity one to one;
Electromagnetic field intensity turns WLAN signal strength signal intensity module, for electromagnetic field intensity is converted intoWLAN signal strength signal intensity;
Memory module, for storing 3D coordinate and WLAN signal strength signal intensity one to one with it;
WLAN signal strength signal intensity detecting terminal, for the wireless WLAN signal that obtains unknown positionIntensity;
Unknown position coordinate computing module, for will be wireless from WLAN signal strength signal intensity detecting terminalThe WLAN signal strength signal intensity of the unknown position getting is converted into corresponding with it position coordinates;
Output module, the position coordinates number calculating for exporting unknown position coordinate computing moduleAccording to;
Wherein, 3D modeling rendering module, 3D model coordinate module, parameter setting module, electricityMagnetic field intensity is calculated module, electromagnetic field intensity turns WLAN signal strength signal intensity module, unknown position seatMark computing module, output module are electrically connected successively, WLAN signal strength signal intensity detecting terminal and unknown bitsPut the wireless connections of coordinate computing module, described memory module electrical connection electromagnetic field intensity turns WLANSignal strength signal intensity module.
In a preferred embodiment of indoor locating system of the present invention, described WLAN signalStrength investigation terminal comprises intelligent Internet-enabled cell phone.
In another preferred embodiment of indoor locating system of the present invention, described WLAN letterNumber strength investigation terminal comprises gets online without being tethered to a cable this.
For solving the problems of the technologies described above, the second technical scheme that the present invention adopts is to provide a kind of indoorLocalization method, comprises step:
Draw the 3D model in space, location;
3D model coordinate;
Give wall and door and window setup parameter in the 3D model space;
According to FDTD principle, each coordinate in 3D model is calculated to be with it one to oneElectromagnetic field intensity;
Electromagnetic field intensity is converted into WLAN signal strength signal intensity;
Storage 3D coordinate and with it WLAN signal strength signal intensity one to one;
The wireless WLAN signal strength signal intensity of obtaining unknown position;
Calculate the position coordinates corresponding to WLAN signal strength signal intensity of unknown position;
Outgoing position coordinate data. .
The invention has the beneficial effects as follows: indoor locating system provided by the invention and indoor positioning sideMethod, model 3D model, transforms into WLAN signal strength signal intensity by 3D coordinate data and carries outData storage, then utilizes detecting terminal to survey the signal strength signal intensity of the WLAN of unknown position, rootAccording to the anti-position coordinates of correspondence with it of releasing of this WLAN signal strength signal intensity, can weaken human factorTo the accidentalia of data acquisition, and can reduce manpower and material resources cost.
Brief description of the drawings
Fig. 1 is the structured flowchart of indoor locating system of the present invention;
Fig. 2 is the schematic flow sheet of indoor orientation method of the present invention.
Detailed description of the invention
Below in conjunction with diagram, technical scheme of the present invention is described in detail.
Shown in Figure 1, indoor locating system of the present invention, comprising:
3D modeling rendering module 1, for drawing the 3D model in space, location, and by drawn3D model is exported to 3D model conversation module 2;
3D model coordinate module 2, for by drawn 3D model coordinate;
Parameter setting module 3, for giving wall and the door and window setup parameter of the 3D model space,Described parameter comprises the thickness of material type, object and the dielectric constant of this material etc., because thisA little spatial distributions that all likely have influence on electromagnetic field, so doing the emulation of Electromagnetic Fields & Magnetic WavesWhen model, can use, the 3d space model of setting up is tried one's best and conforming in reality;
Electromagnetic field intensity computing module 4, for according to FDTD principle, each by 3D modelIndividual coordinate is calculated to be with it electromagnetic field intensity one to one;
Electromagnetic field intensity turns WLAN signal strength signal intensity module 5, for electromagnetic field intensity is converted intoWLAN signal strength signal intensity;
Memory module 6, for storing 3D coordinate and WLAN signal is strong one to one with itDegree;
WLAN signal strength signal intensity detecting terminal 7, for the wireless WLAN letter that obtains unknown positionNumber intensity;
Unknown position coordinate computing module 8, for will be from WLAN signal strength signal intensity detecting terminal 7 nothingsThe WLAN signal strength signal intensity of the unknown position that line gets is converted into corresponding with it position coordinates;
Output module 9, the position coordinates calculating for exporting unknown position coordinate computing module 8Data;
Wherein, 3D modeling rendering module 1,3D model coordinate module 2, parameter setting module 3,Electromagnetic field intensity computing module 4, electromagnetic field intensity turn WLAN signal strength signal intensity module 5, unknown bitsPut coordinate computing module 8, output module 9 and be electrically connected successively, WLAN signal strength signal intensity detecting terminal7 with 8 wireless connections of unknown position coordinate computing module, memory module 6 is electrically connected electromagnetic field intensityTurn WLAN signal strength signal intensity module 5.
The indoor locating system of the present embodiment is that the simulation model based on Electromagnetic Fields & Magnetic Waves carries out, save conventional method and used the human and material resources cost of finger print data, can effectively weaken peopleFor the impact of the contingency factor of image data.
In a preferred embodiment of the present embodiment, described WLAN signal strength signal intensity detecting terminal 7Comprise intelligent Internet-enabled cell phone or get online without being tethered to a cable this.
Another technical scheme of the present invention is to provide a kind of indoor orientation method, as shown in Figure 2,This indoor orientation method comprises step:
The 3D model in S1, space, drafting location;
S2,3D model coordinate;
S3, give wall and door and window setup parameter in the 3D model space;
S4, according to FDTD principle, each coordinate in 3D model is calculated to be with it one a pair ofThe electromagnetic field intensity of answering;
S5, electromagnetic field intensity is converted into WLAN signal strength signal intensity;
S6, storage 3D coordinate and with it WLAN signal strength signal intensity one to one;
S7, the wireless WLAN signal strength signal intensity of obtaining unknown position;
The position coordinates corresponding to WLAN signal strength signal intensity of S8, calculating unknown position;
S9, outgoing position coordinate data.
Indoor locating system provided by the invention and indoor orientation method are based on electromagnetic field and electromagnetismRipple simulation model carries out, and can get rid of the impact of the accidentalia of artificial collection finger print data, canEffectively to save man power and material's cost.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention,Every equivalent structure that utilizes description of the present invention and accompanying drawing content to do, or directly or indirectly useIn other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. an indoor locating system, is characterized in that, comprising:
3D modeling rendering module, for drawing the 3D model in space, location;
3D model coordinate module, for by drawn 3D model coordinate;
Parameter setting module, for giving wall and the door and window setup parameter of the 3D model space;
Electromagnetic field intensity computing module, for according to FDTD principle, by each in 3D modelCoordinate is calculated to be with it electromagnetic field intensity one to one;
Electromagnetic field intensity turns WLAN signal strength signal intensity module, for electromagnetic field intensity is converted intoWLAN signal strength signal intensity;
Memory module, for storing 3D coordinate and WLAN signal strength signal intensity one to one with it;
WLAN signal strength signal intensity detecting terminal, for the wireless WLAN signal that obtains unknown positionIntensity;
Unknown position coordinate computing module, for will be wireless from WLAN signal strength signal intensity detecting terminalThe WLAN signal strength signal intensity of the unknown position getting is converted into corresponding with it position coordinates;
Output module, the position coordinates number calculating for exporting unknown position coordinate computing moduleAccording to;
Wherein, 3D modeling rendering module, 3D model coordinate module, parameter setting module, electricityMagnetic field intensity is calculated module, electromagnetic field intensity turns WLAN signal strength signal intensity module, unknown position seatMark computing module, output module are electrically connected successively, WLAN signal strength signal intensity detecting terminal and unknown bitsPut the wireless connections of coordinate computing module, described memory module electrical connection electromagnetic field intensity turns WLANSignal strength signal intensity module.
2. indoor locating system according to claim 1, is characterized in that, described WLANSignal strength signal intensity detecting terminal comprises intelligent Internet-enabled cell phone.
3. indoor locating system according to claim 1, is characterized in that, described WLANSignal strength signal intensity detecting terminal comprises gets online without being tethered to a cable this.
4. an indoor orientation method, is characterized in that, comprises step:
Draw the 3D model in space, location;
3D model coordinate;
Give wall and door and window setup parameter in the 3D model space;
According to FDTD principle, each coordinate in 3D model is calculated to be with it one to oneElectromagnetic field intensity;
Electromagnetic field intensity is converted into WLAN signal strength signal intensity;
Storage 3D coordinate and with it WLAN signal strength signal intensity one to one;
The wireless WLAN signal strength signal intensity of obtaining unknown position;
Calculate the position coordinates corresponding to WLAN signal strength signal intensity of unknown position;
Outgoing position coordinate data.
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| CN201610029239.0A CN105676173B (en) | 2016-01-14 | 2016-01-14 | Indoor locating system and indoor orientation method |
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| CN201610029239.0A CN105676173B (en) | 2016-01-14 | 2016-01-14 | Indoor locating system and indoor orientation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107289928A (en) * | 2017-07-07 | 2017-10-24 | 四川云图瑞科技有限公司 | A kind of three-dimensional visualization is applied to arenas, the indoor navigation system in library |
| CN107655481A (en) * | 2017-09-21 | 2018-02-02 | 广东工业大学 | A kind of air navigation aid based on Qcell, device and computer-readable recording medium |
| CN109827561A (en) * | 2018-08-03 | 2019-05-31 | 上海诣星智能科技有限公司 | A kind of indoor locating system |
| CN110312240A (en) * | 2018-03-27 | 2019-10-08 | 北京盛世光明软件股份有限公司 | A kind of method and device identifying mobile phone of not putting on record |
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| CN107289928A (en) * | 2017-07-07 | 2017-10-24 | 四川云图瑞科技有限公司 | A kind of three-dimensional visualization is applied to arenas, the indoor navigation system in library |
| CN107655481A (en) * | 2017-09-21 | 2018-02-02 | 广东工业大学 | A kind of air navigation aid based on Qcell, device and computer-readable recording medium |
| CN110312240A (en) * | 2018-03-27 | 2019-10-08 | 北京盛世光明软件股份有限公司 | A kind of method and device identifying mobile phone of not putting on record |
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| CN105676173B (en) | 2018-05-15 |
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Inventor after: Deng Shengyou Inventor before: Zheng Shengyou |
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Effective date of registration: 20240430 Address after: Room 1504, No.12-12 Keyun Road, Tianhe District, Guangzhou City, Guangdong Province, 510000 Patentee after: Guangzhou Quyu Technology Co.,Ltd. Country or region after: China Address before: No. 22 Qinglan Street, Daxue City, Panyu District, Guangzhou City, Guangdong Province, 511400, National Digital Home Zone B Patentee before: GUANGZHOU WANLIAN INFORMATION TECHNOLOGY CO.,LTD. Country or region before: China |