CN105338622B - A kind of high interference immunity indoor wireless positioning method - Google Patents
A kind of high interference immunity indoor wireless positioning method Download PDFInfo
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- CN105338622B CN105338622B CN201510673304.9A CN201510673304A CN105338622B CN 105338622 B CN105338622 B CN 105338622B CN 201510673304 A CN201510673304 A CN 201510673304A CN 105338622 B CN105338622 B CN 105338622B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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Abstract
The present invention discloses a kind of high interference immunity indoor wireless positioning method.It is required that in wireless coverage, increase at least two reference mode, for measuring the loss on different paths in real time；Then it utilizes gained real-time route to be lost, treats positioning node and carry out Primary Location；According to positioning result, two nearest reference modes and wireless access point are selected, path loss and node coordinate are recalculated；The calculating process for repeating front, until two reference modes and wireless access point no longer change as of late, gained node coordinate to be positioned is its spatial position at this time.Due to the method for the invention can signal of measuring in real time transmission feature, and neighbouring reference mode and wireless access point is selected to carry out position calculating, significantly reduces influence of the environmental factor to positioning accuracy, it is ensured that the consistency of positioning accuracy in dynamic environment.
Description
Technical field
The present invention relates to wireless location technology fields, and in particular to a kind of high interference immunity indoor wireless positioning method.
Background technology
With the extensive use of wireless communication technique, demand of the people to indoor positioning and navigation increasingly increases.Due to room
Interior available condition is limited, and the precision and reliability of indoor wireless positioning urgently improve.
Indoors in wireless location technology, the indoor wireless positioning method based on fingerprint is generally used.But this method needs
Manual site's exploration is carried out to area to be targeted, acquired static wireless " fingerprint ".If it is desired to positioning accuracy is higher, required data
Library is bigger, there is inconvenience in the application.A kind of " wireless indoor location method " (application publication number：CN103152823A)
Using smart mobile phone automatic collection wireless fingerprint data and user's mobile data, surveyed without manual site；" it is based on WiFi signal
Indoor wireless positioning method " (application publication number：CN103686999A) by based on model positioning and fingerprint location carry out
It organically combines, is positioned using pseudo- finger print data, not only avoided the fingerprint data collection of off-line phase, but also reduce positioning and calculate
The complexity of method.But due in localization region personnel's increase and decrease, walk about and the factors such as the position change of object can all influence
Electromagnetic signal is in the transmission characteristic in space, therefore the above method is difficult to ensure positioning accuracy.
This patent proposes a kind of detection electromagnetic transmission parameter in real time in view of localizing environment is to the dynamic effects of electromagnetic transmission
High interference immunity indoor wireless positioning method, it is ensured that the consistency of positioning accuracy after electromagnetic transmission characteristic changes.
Invention content
The purpose of the present invention is：Since two methods of fingerprint location and model orientation can not all be that model ginseng is determined in advance
Number can not change laggard Mobile state amendment in environment, and the present invention provides a kind of dynamic calculating electromagnetic parameter scheme, improves to environment
The Ability of Resisting Disturbance of variation；By preferred reference mode and wireless access point, positioning accuracy is improved.
The technical scheme is that：
A kind of high interference immunity indoor wireless positioning method, the system that method utilizes include node to be positioned (1), reference mode
(2), wireless access point (3) and background server (4), the background server (4) acquire node (1) to be positioned and reference node
Point (2) arrives the signal strength of wireless access point (3), and the quantity of the reference mode (2) is more than 1, calculates in accordance with the following steps
The indoor location coordinate of node (1) to be positioned：
A) multiple reference modes (2) transmission loss PL (d are detected first0) and attenuation coefficient γ, establish path loss model：
d0It is distance of the reference mode to wireless access point, γ is attenuation coefficient；D is that node to be positioned (1) arrives
The distance between each wireless access point (3)；
B) the obtained real-time route propagation loss PL (d of step a) are utilized0) and PL (d), calculate node to be positioned (1)
To the distance between each wireless access point (3) d；
C) three-point fix is utilized to calculate the initial position co-ordinates of node (1) to be positioned；
D) it utilizes the initial position co-ordinates of step c) gained node (1) to be positioned to calculate node (1) to be positioned and arrives reference node
The distance between point (2) finds two nearest reference modes and wireless access point, repeats step a)~c), as of late
Until two reference modes and wireless access point no longer change, gained position coordinates are node to be positioned (1) at this time
Final position coordinate.
The present invention has the effect of positive：(1) high interference immunity indoor wireless positioning method of the invention, by sky to be positioned
Between dispose the mode of reference mode, can with extract real-time electromagnetic transmission parameter, avoid in advance determined by electromagnetic transmission parameter
It can not really reflect the limitation of dynamic environment.(2) by iteration optimization, nearest reference mode and wireless access is selected to click through
Line position sets calculating, substantially increases positioning accuracy.
Description of the drawings
Fig. 1 is the system structure diagram of the present invention.
Fig. 2 is the process chart of the present invention.
Specific implementation mode
Invention is further described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the high interference immunity indoor wireless positioning method of the present invention, the wireless coverage in area to be targeted
It is interior, it at least needs to dispose two reference modes (2), two reference modes (2) and node to be positioned (1) must be with one wirelessly
Access point (1) realizes effectively connection.
System treats positioning node (1) according to flow shown in Fig. 2 and carries out position calculating：
A) multiple reference modes (2) transmission loss PL (d are detected first0) and attenuation coefficient γ, establish path loss model：
d0It is distance of the reference mode to wireless access point, γ is attenuation coefficient；D is node to be positioned
(1) it arrives
The distance between each wireless access point (3)；
B) the obtained real-time route propagation loss PL (d of step a) are utilized0) and PL (d), calculate node to be positioned (1)
To the distance between each wireless access point (3) d；
C) three-point fix is utilized to calculate the initial position co-ordinates of node (1) to be positioned；
D) it utilizes the initial position co-ordinates of step c) gained node (1) to be positioned to calculate node (1) to be positioned and arrives reference node
The distance between point (2) finds two nearest reference modes and wireless access point, repeats step a)~c), as of late
Until two reference modes and wireless access point no longer change, gained position coordinates are node to be positioned (1) at this time
Final position coordinate.
It to sum up states, the high interference immunity city wireless location method of the present embodiment, by installing reference node in wireless coverage area
Point mode detects the loss index in transmission path, improves the adaptability changed to environment in real time；By preferably nearest
Reference mode and wireless access point, improve positioning accuracy.
Above example is the explanation rather than limitation of the present invention to the specific implementation mode of the present invention, related technology
The technical staff in field without departing from the spirit and scope of the present invention, can also make various transformation and variation and obtain
To corresponding equivalent technical solution, therefore all equivalent technical solutions should be included into the patent protection model of the present invention
It encloses.
Claims (1)
1. a kind of high interference immunity indoor wireless positioning method, it is characterised in that：The system that method utilizes include node to be positioned (1),
Reference mode (2), wireless access point (3) and background server (4), the background server (4) acquire node (1) to be positioned
The signal strength of wireless access point (3) is arrived with reference mode (2), the quantity of the reference mode (2) is more than 1, according to as follows
Step calculates the indoor location coordinate of node (1) to be positioned：
A) multiple reference modes (2) transmission loss PL (d are detected first0) and attenuation coefficient γ, establish path loss model：
d0Distance of the reference mode to wireless access point, d be node to be positioned (1) between each wireless access point (3) away from
From；
B) the obtained real-time route propagation loss PL (d of step a) are utilized0) and PL (d), node to be positioned (1) is calculated to respectively
The distance between wireless access point (3) d；
C) three-point positioning method is utilized to calculate the initial position co-ordinates of node (1) to be positioned；
D) it utilizes the initial position co-ordinates of step c) gained node (1) to be positioned to calculate node (1) to be positioned and arrives reference mode (2)
The distance between, two nearest reference modes and wireless access point are found, step a)~c is repeated), two ginsengs as of late
It examines node and until wireless access point no longer changes, gained position coordinates is the most final position of node to be positioned (1) at this time
Set coordinate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510673304.9A CN105338622B (en) | 2015-10-13 | 2015-10-13 | A kind of high interference immunity indoor wireless positioning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673304.9A CN105338622B (en) | 2015-10-13 | 2015-10-13 | A kind of high interference immunity indoor wireless positioning method |
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| Publication Number | Publication Date |
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| CN105338622A CN105338622A (en) | 2016-02-17 |
| CN105338622B true CN105338622B (en) | 2018-08-07 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106211318A (en) * | 2016-07-06 | 2016-12-07 | 蓝盾信息安全技术有限公司 | A kind of path loss localization method based on WiFi and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197279A (en) * | 2013-03-12 | 2013-07-10 | 中国矿业大学 | Mobile target cooperative positioning system and positioning method |
| CN103338516A (en) * | 2013-07-19 | 2013-10-02 | 大连理工大学 | Two-step positioning method of wireless sensor network based on total least squares |
| CN103338510A (en) * | 2013-05-24 | 2013-10-02 | 赵东明 | Wireless sensor network positioning method based on RSSI (received signal strength indicator) |
| WO2014094282A1 (en) * | 2012-12-20 | 2014-06-26 | Telefonaktiebolaget L M Ericsson(Publ) | Node and method for determining link adaptation parameters |
| CN103945399A (en) * | 2014-04-18 | 2014-07-23 | 苏州大学 | Cooperation deployment method of mixed sensing nodes under uncertain environment |
| CN103997717A (en) * | 2014-06-12 | 2014-08-20 | 福建师范大学 | Real-time indoor positioning system and method |
| CN104507164A (en) * | 2015-01-16 | 2015-04-08 | 哈尔滨工业大学 | WSN (wireless sensor network) node positioning method based on RSS (Received Signal Strength) and distance measurement unbiased estimation |
-
2015
- 2015-10-13 CN CN201510673304.9A patent/CN105338622B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014094282A1 (en) * | 2012-12-20 | 2014-06-26 | Telefonaktiebolaget L M Ericsson(Publ) | Node and method for determining link adaptation parameters |
| CN103197279A (en) * | 2013-03-12 | 2013-07-10 | 中国矿业大学 | Mobile target cooperative positioning system and positioning method |
| CN103338510A (en) * | 2013-05-24 | 2013-10-02 | 赵东明 | Wireless sensor network positioning method based on RSSI (received signal strength indicator) |
| CN103338516A (en) * | 2013-07-19 | 2013-10-02 | 大连理工大学 | Two-step positioning method of wireless sensor network based on total least squares |
| CN103945399A (en) * | 2014-04-18 | 2014-07-23 | 苏州大学 | Cooperation deployment method of mixed sensing nodes under uncertain environment |
| CN103997717A (en) * | 2014-06-12 | 2014-08-20 | 福建师范大学 | Real-time indoor positioning system and method |
| CN104507164A (en) * | 2015-01-16 | 2015-04-08 | 哈尔滨工业大学 | WSN (wireless sensor network) node positioning method based on RSS (Received Signal Strength) and distance measurement unbiased estimation |
Non-Patent Citations (1)
| Title |
|---|
| 全局最优的邻域估计;杨启文等;《控制与决策》;20120727;第27卷(第8期);第1269-1272页 * |
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