CN104457740B - A kind of indoor navigation system and its pinpoint method - Google Patents
A kind of indoor navigation system and its pinpoint method Download PDFInfo
- Publication number
- CN104457740B CN104457740B CN201410730947.8A CN201410730947A CN104457740B CN 104457740 B CN104457740 B CN 104457740B CN 201410730947 A CN201410730947 A CN 201410730947A CN 104457740 B CN104457740 B CN 104457740B
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- wireless
- server
- wireless aps
- terminal
- cell phone
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/20—Instruments for performing navigational calculations
- G01C21/206—Instruments for performing navigational calculations specially adapted for indoor navigation
Abstract
A kind of indoor navigation system and its pinpoint method, precision navigation can be realized under complex scene indoors.Compared with prior art, the present invention solves the problems, such as that existing outdoor airmanship can not position indoors, realizes precision navigation under complex scene indoors, smaller compared to existing indoor positioning technologies error；System is based on Android operation system platform, and real-time reception wireless aps send signal, the exact position in building is drawn by Precision Orientation Algorithm, and by coordinates transformation method, guidance path is planned for user.
Description
Technical field
The present invention relates to field of navigation systems, especially a kind of portable system for indoor navigation and its it is accurately positioned
Method.
Background technology
The arrival in rapid development of information technology epoch so that indoor positioning rises with airmanship in increasing application
Important effect.Although the performance that GPS GPS is positioned in an outdoor environment is quite outstanding, do not apply to
In indoor environment.Because gps satellite signal can not penetrate too thick wall, navigation equipment is in heavy construction, hypogee, high level
Thoroughly satellite-signal can be can not find in building and can not be positioned.Indoor positioning has become Jiao of Study of location and development
Point.
Indoor navigation can bring great convenience with location technology to life, the work of people, and portable set is as touched
Screen, mobile phone etc. are touched, its computing capability, communication capacity and bottom hardware are fully able to meet the needs of indoor positioning and navigation.Mesh
Preceding existing indoor positioning technologies can be divided into three classes：Inertial navigation system, shortcoming are that signal has skew and noise, and positioning misses
It is poor big；Mechanical wave system, utilize ultrasonic wave and polygon location technology computed user locations；Electromagnetic wave system, including it is visible ray, red
Outside line etc..
The content of the invention
The technical problems to be solved by the invention are, there is provided a kind of indoor navigation system and its pinpoint method,
Precision navigation can be realized under complex scene indoors.
In order to solve the above technical problems, the present invention provides a kind of indoor navigation system and its pinpoint method, including
Server-centric, several wireless aps, terminal device；All pass through between terminal device, several wireless aps and server-centric
Internal lan is connected；Server-centric includes WEB server, application server and database server, passes through between three
Wired connection mode carries out data interaction；Terminal device includes mobile terminal and fixed terminal, mobile terminal include cell phone apparatus,
Tablet personal computer or other handheld devices, fixed terminal include fixed touch-screen；The wireless WiFi networking plans of system are handed over including PoE
Change planes, AC wireless controllers, router, several wireless aps；Cable network is automatically converted into wireless network, AC by wireless aps
Wireless controller is managed collectively several wireless aps；The Internet signals that outside is connected into are introduced into PoE interchangers, then send
To wireless aps；
Comprise the following steps that：
(1) the AP regions of equipment are filtered out；By the strength information of each AP in fingerprint base, pass through the side of finite state machine
Formula, determine which AP cell phone apparatus is near；And when switching between different AP, keep the registration of most strong AP signals
Information invariability, most strong AP is arrived by force until next signal gradually becomes, that is, when reaching the proportion threshold value of AP intensity, consider that switching is set
The AP sections at standby place；
(2) coordinate in the AP sections is utilized, filters out certain amount of AP near current location；
(3) possible position coordinates is filtered out；Cell phone apparatus gathers these AP intensity, with the relevant position in fingerprint base
AP signals carry out Pearson correlation coefficient matching, return to possible coordinate points；
(4) true possible device coordinate is filtered out；The coordinate points of return are judged, if coordinate points and people's can
Movable mode is different, then gives up the coordinate points.
Beneficial effects of the present invention are：Compared with prior art, the present invention solves existing outdoor airmanship in room
Interior the problem of can not positioning, precision navigation is realized under complex scene indoors, it is smaller compared to existing indoor positioning technologies error；
System is based on Android operation system platform, and real-time reception wireless aps send signal, drawn and built by Precision Orientation Algorithm
Exact position in thing, by coordinates transformation method, guidance path is planned for user.
Brief description of the drawings
Fig. 1 is the system architecture diagram of the present invention.
Fig. 2 is the wireless WiFi networking plans of the present invention.
Fig. 3 is the network structure block diagram of the present invention.
Fig. 4 is the flow chart of the accurate positioning method in the indoor navigation of the present invention.
Embodiment
As shown in figure 1, a kind of indoor navigation system, including server-centric, several wireless aps, terminal device；Terminal
All it is connected between equipment, several wireless aps and server-centric by internal lan；Server-centric includes WEB service
Device, application server and database server, data interaction is carried out by wired connection mode between three；Terminal device includes
Mobile terminal and fixed terminal, mobile terminal include mobile phone or other handheld devices, and fixed terminal includes fixed touch-screen.
Server end is by information, mobile phone terminal or fixations such as the good user profile of Administrator, wireless device, floor companies
Touch-screen is connected to server, can show or inquire about each floor or company information, display building threedimensional model, according to database
Each floor information of information dynamic statistics；Also can be transmitted according to the signal of each wireless aps to position mobile terminal user, by user
Sets target position, implementation path planning are navigated, if user reaches target location, navigation terminates, and otherwise system is again
Location navigation.
As shown in Fig. 2 wireless WiFi networking plans specifically include wireless aps, PoE interchangers, AC wireless controllers, route
Device；The Internet signals that outside is connected into are introduced into PoE interchangers, then send to wireless aps.Wireless aps can automatically by
Cable network is converted into wireless network, and provides the wireless routing connection of Multi net voting, multiband, high stability, high security.By
In quantity individual wireless aps up to a hundred being present, it is therefore desirable to add AC wireless controllers to be managed collectively.AC wireless controllers can be sent out
Now with management AP, as AP working conditions are checked, AP is unified to be configured, and SSID and VLAN is set.
As shown in figure 3, position portion network divides, location-server and navigator fix terminal, positioning service are broadly divided into
Device is responsible for navigator fix terminal and provides data download, such as the XML file of positioning map, map, signal intensity fingerprint base etc.
Deng navigator fix terminal provides the user navigator fix service according to these data.In practical application, the interior of system operation
A location-server is had in environment, WEB server is run to provide file download service on this location-server, it is fixed
Position server is connected with wireless aps, and user can use mobile terminal to add wireless aps and movement is downloaded from location-server
Data file required for terminal positioning.
As shown in figure 4, the flow chart for the accurate positioning method in the indoor navigation of the present invention.Based on AP signal intensities
Main flow indoor positioning technologies are all based on received signals fingerprint information, and the result of preferably precision is also to use in presently relevant application scenarios
This method.
The characteristics of for indoor AP and the actual demand of user, propose it is a kind of filter three times based on Pearson phase relations
Pinpoint method in several indoor navigations, comprises the following steps：(1) the AP regions of equipment are filtered out；Pass through fingerprint base
In each AP strength information, by way of finite state machine, determine which AP cell phone apparatus is near；And in difference
When switching between AP, keep the register information of most strong AP signals constant, until next signal gradually becomes by force to most strong
AP, that is, when reaching the proportion threshold value of the AP intensity, consider the AP sections where switching equipment；(2) coordinate in the AP sections is utilized,
Filter out certain amount of AP near the position；(3) possible position coordinates is filtered out；Cell phone apparatus gathers the strong of these AP
Degree, the matching of Pearson correlation coefficient is carried out with the AP signals of the relevant position in fingerprint base, returns to possible coordinate points；(4)
Filter out true possible device coordinate；The coordinate points of return are judged, if coordinate points and people's can movable side
Formula is different, then gives up the coordinate points.It is so-called to filter three times, it is the AP regions for filtering out equipment for the first time, is filtering for the second time
Go out possible position coordinates, be to filter out true possible device coordinate for the third time.
Although the present invention is illustrated and described with regard to preferred embodiment, it is understood by those skilled in the art that
Without departing from scope defined by the claims of the present invention, variations and modifications can be carried out to the present invention.
Claims (1)
1. a kind of indoor navigation system and its pinpoint method, including server-centric, several wireless aps, terminal are set
It is standby；All it is connected between terminal device, several wireless aps and server-centric by internal lan；Server-centric includes
WEB server, application server and database server, data interaction is carried out by wired connection mode between three；Terminal
Equipment includes mobile terminal and fixed terminal, and mobile terminal includes cell phone apparatus, tablet personal computer or other handheld devices, fixed whole
End includes fixed touch-screen；The wireless WiFi networking plans of system include PoE interchangers, AC wireless controllers, router, some
Individual wireless aps；Cable network is automatically converted into wireless network by wireless aps, and it is wireless that AC wireless controllers are managed collectively several
AP；The Internet signals that outside is connected into are introduced into PoE interchangers, then send to wireless aps；Comprise the following steps that：
(1) the AP regions of cell phone apparatus are filtered out；By the strength information of each AP in fingerprint base, pass through the side of finite state machine
Formula, determine which AP cell phone apparatus is near；And when switching between different AP, keep the registration of most strong AP signals
Information invariability, most strong AP is arrived by force until next signal gradually becomes, that is, when reaching the proportion threshold value of AP intensity, consider switching hand
AP sections where machine equipment；
(2) coordinate in the AP sections is utilized, filters out certain amount of AP near current location；
(3) possible position coordinates is filtered out；Cell phone apparatus gathers these AP intensity, the AP with the relevant position in fingerprint base
Signal carries out the matching of Pearson correlation coefficient, returns to possible coordinate points；
(4) true possible device coordinate is filtered out；The coordinate points of return are judged, if coordinate points and the possibility of people are transported
Dynamic mode is different, then gives up the coordinate points.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410730947.8A CN104457740B (en) | 2014-12-05 | 2014-12-05 | A kind of indoor navigation system and its pinpoint method |
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| CN201410730947.8A CN104457740B (en) | 2014-12-05 | 2014-12-05 | A kind of indoor navigation system and its pinpoint method |
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| Publication Number | Publication Date |
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| CN104457740A CN104457740A (en) | 2015-03-25 |
| CN104457740B true CN104457740B (en) | 2017-12-01 |
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| CN105241460B (en) * | 2015-10-20 | 2018-03-27 | 广东欧珀移动通信有限公司 | A kind of path generating method and user terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152756A (en) * | 2013-04-08 | 2013-06-12 | 武汉虹信通信技术有限责任公司 | Automation configuration method for wireless local area network access controller (WLAN AC) |
| CN103179661A (en) * | 2013-03-22 | 2013-06-26 | 四川长虹电器股份有限公司 | WLAN (Wireless Local Area Network)-based indoor positioning method and device |
| CN103517208A (en) * | 2012-06-28 | 2014-01-15 | 上海泓雄医院信息系统有限公司 | Intelligent electronic medical guidance system |
| CN103648163A (en) * | 2013-12-06 | 2014-03-19 | 镇江坤泉电子科技有限公司 | Indoor positioning method applied to wireless local area network |
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2014
- 2014-12-05 CN CN201410730947.8A patent/CN104457740B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103517208A (en) * | 2012-06-28 | 2014-01-15 | 上海泓雄医院信息系统有限公司 | Intelligent electronic medical guidance system |
| CN103179661A (en) * | 2013-03-22 | 2013-06-26 | 四川长虹电器股份有限公司 | WLAN (Wireless Local Area Network)-based indoor positioning method and device |
| CN103152756A (en) * | 2013-04-08 | 2013-06-12 | 武汉虹信通信技术有限责任公司 | Automation configuration method for wireless local area network access controller (WLAN AC) |
| CN103648163A (en) * | 2013-12-06 | 2014-03-19 | 镇江坤泉电子科技有限公司 | Indoor positioning method applied to wireless local area network |
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