CN105676173B - Indoor locating system and indoor orientation method - Google Patents
Indoor locating system and indoor orientation method Download PDFInfo
- Publication number
- CN105676173B CN105676173B CN201610029239.0A CN201610029239A CN105676173B CN 105676173 B CN105676173 B CN 105676173B CN 201610029239 A CN201610029239 A CN 201610029239A CN 105676173 B CN105676173 B CN 105676173B
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- wlan signal
- signal intensity
- electromagnetic field
- field intensity
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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
Abstract
A kind of indoor locating system provided by the invention, 3D modeling renderings module, 3D model coordinates module, parameter setting module, electromagnetic field intensity computing module, the electromagnetic field intensity being sequentially connected electrically turn WLAN signal intensity module, unknown position coordinate calculation module, output module and are sequentially connected electrically, the WLAN signal strength investigation terminal with unknown position coordinate calculation module wireless connection is further included, further includes and is electrically connected the memory module that electromagnetic field intensity turns WLAN signal intensity module.Indoor locating system and indoor orientation method provided by the invention, initially set up 3D models, 3D coordinate datas are transformed into WLAN signal intensity and carry out data storage, then the signal strength of the WLAN of unknown position is detected using detecting terminal, corresponding position coordinates is released according to the WLAN signal intensity is counter, accidentalia of the human factor to data acquisition can be weakened, and manpower and material resources cost can be reduced.
Description
Technical field
The present invention relates to indoor positioning technologies field, more particularly to a kind of indoor locating system and indoor positioning side
Method.
Background technology
Mainly there is two parts data source for the existing market indoor locating system using mobile phone positioning：
First is " finger print data ", this is to be obtained before system is put into market, and the type of data is each in market
The signal strength values that the coordinate of point and the mobile phone being positioned on the aspect are arrived by all AP detections of surrounding；
Second of data is obtained after system comes into operation, and the types of data is mobile phone in the unknown point institute by around
Have the signal strength values that detecting terminal detects, obtain this block number according to followed by fingerprint base data be compared, so as to anti-
Release the position of the mobile phone user.
It is to need under ideal conditions since finger print data is to need manually collection in original indoor locating system
Want the data of point all in market.But this is very unrealistic in the case where engineered form gathers, the human and material resources of input and when
Between cost it is too high, it is unrealistic, so the representational portion point for wanting gathered data can only be planned in market, so
After allow human hand held mobile phone to the required data point of collection in market.But can be because participant be excessive, so that by human factor
Influence is very big, and the quality for the system made is difficult to evaluate to be because the acquisition problems of data or asking for location algorithm
Topic, this can hinder us to be further optimized.
Accordingly, it is desirable to provide a kind of indoor locating system and indoor orientation method are to solve above-mentioned technical problem.
The content of the invention
In order to solve the above technical problems, the first technical solution that the present invention uses is to provide a kind of indoor locating system, wrap
Include：
3D modeling rendering modules, for drawing the 3D models of located space；
3D model coordinate modules, for by drawn 3D model coordinates；
Parameter setting module, for the wall in the 3D model spaces and door and window setup parameter；
Electromagnetic field intensity computing module, for according to FDTD principles, by each coordinate in 3D models be calculated as with one of
One corresponding electromagnetic field intensity；
Electromagnetic field intensity turns WLAN signal intensity module, for electromagnetic field intensity to be converted into WLAN signal intensity；
Memory module, for storing 3D coordinates and therewith one-to-one WLAN signal intensity；
WLAN signal strength investigation terminal, for wirelessly obtaining the WLAN signal intensity of unknown position；
Unknown position coordinate calculation module, for the unknown position that will be got from WLAN signal strength investigation terminal wireless
WLAN signal intensity be converted into corresponding position coordinates；
Output module, the position coordinate data calculated for exporting unknown position coordinate calculation module；
Wherein, 3D modeling renderings module, 3D model coordinates module, parameter setting module, electromagnetic field intensity computing module,
Electromagnetic field intensity turns WLAN signal intensity module, unknown position coordinate calculation module, output module and is sequentially connected electrically, WLAN signal
Strength investigation terminal and unknown position coordinate calculation module wireless connection, the memory module are electrically connected electromagnetic field intensity and turn WLAN
Signal strength module.
In a preferred embodiment of the indoor locating system of the present invention, the WLAN signal strength investigation terminal includes
Intelligent Internet-enabled cell phone.
In another preferred embodiment of the indoor locating system of the present invention, the WLAN signal strength investigation terminal bag
Include wireless networking sheet.
In order to solve the above technical problems, the second technical solution that the present invention uses is to provide a kind of indoor orientation method, wrap
Include step：
Draw the 3D models of located space；
3D model coordinates；
To the wall in the 3D model spaces and door and window setup parameter；
According to FDTD principles, each coordinate in 3D models is calculated as one-to-one electromagnetic field intensity therewith；
Electromagnetic field intensity is converted into WLAN signal intensity；
Store 3D coordinates and therewith one-to-one WLAN signal intensity；
The wireless WLAN signal intensity for obtaining unknown position；
Calculate the corresponding position coordinates of WLAN signal intensity of unknown position；
Outgoing position coordinate data..
The beneficial effects of the invention are as follows：Indoor locating system and indoor orientation method provided by the invention, initially set up 3D
Model, transforms into WLAN signal intensity by 3D coordinate datas and carries out data storage, then detect unknown bits using detecting terminal
The signal strength of the WLAN put, corresponding position coordinates is released according to the WLAN signal intensity is counter, can weaken it is artificial because
The plain accidentalia to data acquisition, and manpower and material resources cost can be reduced.
Brief description of the drawings
Fig. 1 is the structure diagram of the indoor locating system of the present invention；
Fig. 2 is the flow diagram of the indoor orientation method of the present invention.
Embodiment
Technical scheme is described in detail with reference to diagram.
Indoor locating system shown in Figure 1, of the invention, including：
3D modeling renderings module 1, for drawing the 3D models of located space, and drawn 3D models is exported and give 3D moulds
Type conversion module 2；
3D model coordinates module 2, for by drawn 3D model coordinates；
Parameter setting module 3, for including material to the wall in the 3D model spaces and door and window setup parameter, the parameter
Dielectric constant of type, the thickness of object and the material etc., because these spatial distributions for being likely to influence electromagnetic field,
So can be used when the simulation model of Electromagnetic Fields ＆ Magnetic Waves is made so that the 3d space model of foundation as far as possible with reality
Be consistent；
Electromagnetic field intensity computing module 4, for according to FDTD principles, by each coordinate in 3D models be calculated as with one of
One corresponding electromagnetic field intensity；
Electromagnetic field intensity turns WLAN signal intensity module 5, for electromagnetic field intensity to be converted into WLAN signal intensity；
Memory module 6, for storing 3D coordinates and therewith one-to-one WLAN signal intensity；
WLAN signal strength investigation terminal 7, for wirelessly obtaining the WLAN signal intensity of unknown position；
Unknown position coordinate calculation module 8, for the unknown bits that will wirelessly be got from WLAN signal strength investigation terminal 7
The WLAN signal intensity put is converted into corresponding position coordinates；
Output module 9, the position coordinate data calculated for exporting unknown position coordinate calculation module 8；
Wherein, 3D modeling renderings module 1,3D model coordinates module 2, parameter setting module 3, electromagnetic field intensity calculate mould
Block 4, electromagnetic field intensity turn WLAN signal intensity module 5, unknown position coordinate calculation module 8, output module 9 and are sequentially connected electrically,
WLAN signal strength investigation terminal 7 and 8 wireless connection of unknown position coordinate calculation module, memory module 6 are electrically connected electromagnetic field intensity
Degree turns WLAN signal intensity module 5.
The indoor locating system of the present embodiment is what the simulation model based on Electromagnetic Fields ＆ Magnetic Waves carried out, saves tradition
Method uses the human and material resources cost of finger print data, can effectively weaken the influence of the accidental sexual factor of artificial gathered data.
In a preferred embodiment of the present embodiment, the WLAN signal strength investigation terminal 7 includes intelligence online hand
Machine or wireless networking sheet.
Another technical solution of the present invention is to provide a kind of indoor orientation method, as shown in Fig. 2, the indoor orientation method
Including step：
S1, the 3D models for drawing located space；
S2,3D model coordinate；
S3, to the wall in the 3D model spaces and door and window setup parameter；
S4, according to FDTD principles, each coordinate in 3D models is calculated as one-to-one electromagnetic field intensity therewith；
Electromagnetic field intensity, is converted into WLAN signal intensity by S5；
S6, store 3D coordinates and therewith one-to-one WLAN signal intensity；
S7, the wireless WLAN signal intensity for obtaining unknown position；
S8, the corresponding position coordinates of WLAN signal intensity for calculating unknown position；
S9, outgoing position coordinate data.
Indoor locating system and indoor orientation method provided by the invention, be based on Electromagnetic Fields ＆ Magnetic Waves simulation model into
Capable, the influence of the artificially accidentalia of collection finger print data can be excluded, can effectively save cost of human and material resources.
The foregoing is merely the embodiment of the present invention, is not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure that bright specification and accompanying drawing content are made, is directly or indirectly used in other related technical areas, similarly
It is included within the scope of the present invention.
Claims (4)
- A kind of 1. indoor locating system, it is characterised in that including：3D modeling rendering modules, for drawing the 3D models of located space；3D model coordinate modules, for by drawn 3D model coordinates；Parameter setting module, for the wall in the 3D model spaces and door and window setup parameter；Electromagnetic field intensity computing module, for according to FDTD principles, each coordinate in 3D models to be calculated as a pair therewith The electromagnetic field intensity answered；Electromagnetic field intensity turns WLAN signal intensity module, for electromagnetic field intensity to be converted into WLAN signal intensity；Memory module, for storing 3D coordinates and therewith one-to-one WLAN signal intensity；WLAN signal strength investigation terminal, for wirelessly obtaining the WLAN signal intensity of unknown position；Unknown position coordinate calculation module, for the unknown position that will be got from WLAN signal strength investigation terminal wireless WLAN signal intensity is converted into corresponding position coordinates；Output module, the position coordinate data calculated for exporting unknown position coordinate calculation module；Wherein, 3D modeling renderings module, 3D model coordinates module, parameter setting module, electromagnetic field intensity computing module, electromagnetism Field intensity turns WLAN signal intensity module, unknown position coordinate calculation module, output module and is sequentially connected electrically, WLAN signal intensity Detecting terminal and unknown position coordinate calculation module wireless connection, the memory module are electrically connected electromagnetic field intensity and turn WLAN signal Intensity module.
- 2. indoor locating system according to claim 1, it is characterised in that the WLAN signal strength investigation terminal includes Intelligent Internet-enabled cell phone.
- 3. indoor locating system according to claim 1, it is characterised in that the WLAN signal strength investigation terminal includes Wireless networking sheet.
- 4. a kind of indoor orientation method, it is characterised in that including step：Draw the 3D models of located space；3D model coordinates；To the wall in the 3D model spaces and door and window setup parameter；According to FDTD principles, each coordinate in 3D models is calculated as one-to-one electromagnetic field intensity therewith；Electromagnetic field intensity is converted into WLAN signal intensity；Store 3D coordinates and therewith one-to-one WLAN signal intensity；The wireless WLAN signal intensity for obtaining unknown position；Calculate the corresponding position coordinates of WLAN signal intensity of unknown position；Outgoing position coordinate data.
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Families Citing this family (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 |
| 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 |
| 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 |
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