CN105828282A - Active positioning method and system based on WiFi - Google Patents
Active positioning method and system based on WiFi Download PDFInfo
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- CN105828282A CN105828282A CN201510008942.9A CN201510008942A CN105828282A CN 105828282 A CN105828282 A CN 105828282A CN 201510008942 A CN201510008942 A CN 201510008942A CN 105828282 A CN105828282 A CN 105828282A
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Abstract
The invention discloses an active positioning method based on WiFi. The method of the invention is characterized by comprising the following steps: a mobile terminal WiFi signal of a user is actively acquired; parameters of each link layer and each MAC layer in the mobile terminal WiFi signal of the user are analyzed; a reference value for a spatial relationship between the user mobile terminal and each WiFi device is calculated; and the spatial relationship reference value between the user mobile terminal and each WiFi device is compared to obtain the position of the user mobile terminal. The invention also provides an active positioning system based on WiFi based on the method. According to the method and the system of the invention, the WiFi device positioning precision can be improved, a positioning device does not need to be deployed additionally, and the deployment cost can be reduced.
Description
Technical field
The present invention relates to positioning of mobile equipment technology, particularly relate to a kind of active positioning method based on WiFi and system.
Background technology
Along with the development of WiFi technology, the promotion of wireless city, WiFi technology is widely used in industry-by-industry.Positioning service market quickly grows equally, and positioning service demand increases rapidly and utilizes the WiFi network being widely present, and to being in, housing-group is intensive or indoor objects carries out location and becomes best-of-breed technology selection.Positioned by WiFi network, application industry and the scope of positioning service can be expanded, strengthen the rescue ability of solution of emergent event, there is important social meaning.
WiFi is commonly called as wireless broadband network, is the mature technology of current wireless IP transmission, owing to it has long transmission distance, bandwidth height, the easy feature of networking, is widely used in all trades and professions.Along with WIFI network is at the ubiquitous deployment of entire society, a lot of units have deployed WIFI network, but existing WiFi location technology positioning precision is poor, and lower deployment cost is high, and utilization rate of equipment and installations is low, and this causes significant wastage, adds cost of investment and administrative burden.
Summary of the invention
In view of current WiFi location technology above shortcomings, the present invention provides a kind of active positioning method based on WiFi, can improve WiFi positioning precision, it is not necessary to additionally disposes location equipment, can reduce lower deployment cost.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
A kind of active positioning method based on WiFi, it is characterised in that described active positioning method based on WiFi comprises the following steps:
Carry out actively gathering to the mobile terminal WiFi signal of user；
Various link layers in the mobile terminal WiFi signal of user and MAC layer parameter are analyzed；
Calculate the reference value of spatial relationship between customer mobile terminal and each WiFi equipment；
The position of customer mobile terminal is drawn after spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted；
According to one aspect of the present invention, mobile terminal WiFi signal is carried out actively acquisition step following steps before performing, can be performed: analyze place situation, use WiFi equipment to carry out the structure of WiFi location network.
According to one aspect of the present invention, described various link layers in mobile terminal WiFi signal and MAC layer parameter are analyzed step include: the modulation /demodulation parameter in link layer, channel, signal intensity, Frame parameter, sample Loss Rate, message sequence, message retransmission rate and mobile terminal device MAC are analyzed.
According to one aspect of the present invention, described in calculate the reference value step of the spatial relationship between customer mobile terminal and each WiFi equipment and include: use average weighted algorithm, square root algorithm, sampling than one or more methods in algorithm, the reference value of the spatial relationship between customer mobile terminal and WiFi equipment to be calculated.
According to one aspect of the present invention, described spatial relationship reference value between mobile terminal and each WiFi equipment is contrasted after draw in the position of mobile terminal, positioning precision adjustment can be carried out according to the deployment of WiFi equipment.
According to one aspect of the present invention, described carry out mobile terminal WiFi signal actively gathering, the link layer in mobile terminal WiFi signal and MAC layer parameter are analyzed in by WiFi equipment mobile terminal WiFi signal is acquired and analyzes.
According to one aspect of the present invention, described active positioning method based on WiFi is further comprising the steps of: by synthetic user location information of mobile terminal, calculate the running orbit of customer mobile terminal.
A kind of active location system based on WiFi, it is characterised in that described active location system based on WiFi includes:
Signal acquisition module, gathers for the mobile terminal WiFi signal of user is carried out active；
Signal analysis module, for being analyzed the various link layers in the mobile terminal WiFi signal of user and MAC layer parameter；
Spatial relationship computing module, for calculating the reference value of the spatial relationship between customer mobile terminal and each WiFi equipment；
Contrast module, draws the position of customer mobile terminal after the spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted.
According to one aspect of the present invention, described active location system based on WiFi also includes: running orbit computing module, for synthetic user location information of mobile terminal, calculates the running orbit of customer mobile terminal.
According to one aspect of the present invention, described active location system based on WiFi also includes: ambient As module, is used for analyzing place situation, uses WiFi equipment to carry out the structure of WiFi location network.
The advantage that the present invention implements: by customer mobile terminal WiFi signal being acquired and analyzing, calculate the reference value of spatial relationship between customer mobile terminal and each WiFi equipment, the position of customer mobile terminal is drawn after spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted, WiFi equipment positioning precision can be improved, without additionally disposing location equipment, lower deployment cost can be reduced.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the embodiment 1 method schematic diagram of a kind of active positioning method based on WiFi of the present invention；
Fig. 2 is the embodiment 2 method schematic diagram of a kind of active positioning method based on WiFi of the present invention；
Fig. 3 is the embodiment 3 method schematic diagram of a kind of active positioning method based on WiFi of the present invention；
Fig. 4 is the structural representation of a kind of active location system based on WiFi of the present invention；
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
A kind of active positioning method embodiment 1 based on WiFi:
As it is shown in figure 1, a kind of active positioning method based on WiFi, it is characterised in that described active positioning method based on WiFi comprises the following steps:
Step S1: carry out actively gathering to the mobile terminal WiFi signal of user；
Actively gather, be that mobile terminal need not do any extra process, just as long as carrying out data communication according to WiFi standard can be caught by WiFi equipment and analyze.
Step S2: the various link layers in the mobile terminal WiFi signal of user and MAC layer parameter are analyzed；
Described step S2: the various link layers in mobile terminal WiFi signal and MAC layer parameter are analyzed step and include: the modulation /demodulation parameter in link layer, channel, signal intensity, Frame parameter, sample Loss Rate, message sequence, message retransmission rate and mobile terminal device MAC are analyzed.
Described step S1: carry out mobile terminal WiFi signal actively gathering, step S2: by WiFi equipment mobile terminal WiFi signal be acquired during the modulation /demodulation parameter in link layer, channel, signal intensity, Frame parameter, sample Loss Rate, message sequence, message retransmission rate and mobile terminal device MAC are analyzed and analyze.
Step S3: calculate the reference value of spatial relationship between customer mobile terminal and each WiFi equipment；
Described step S3: the reference value step calculating the spatial relationship between customer mobile terminal and each WiFi equipment includes: use average weighted algorithm, square root algorithm, sampling than one or more methods in algorithm, the reference value of the spatial relationship between customer mobile terminal and WiFi equipment to be calculated.
Algorithm can be with unrestricted choice and definition, different occasions, and different requirement uses algorithms of different, such as: environment is poor, the occasion that precision prescribed is higher again, use the sampling that sample is the biggest plus increasingly complex square root correction algorithm, but the algorithm so selected is computationally intensive, and speed is slow.Common store occasion, uses meansigma methods weighting algorithm to be sufficient to.
Step S4: draw the position of customer mobile terminal after the spatial relationship reference value between customer mobile terminal and each WiFi equipment being contrasted.
Described step S4: draw in the position of mobile terminal after the spatial relationship reference value between mobile terminal and each WiFi equipment is contrasted, positioning precision adjustment can be carried out according to the deployment of WiFi equipment.
Contrast itself can also have many algorithms, as equal proportion contrasts, and error threshold values contrast etc..
By customer mobile terminal WiFi signal being acquired and analyzing, calculate the reference value of spatial relationship between customer mobile terminal and each WiFi equipment, the position of customer mobile terminal is drawn after spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted, above-mentioned steps can realize WiFi equipment and be accurately positioned, without additionally disposing location equipment, lower deployment cost can be reduced.It addition, positioning precision adjustment can be carried out according to the deployment of WiFi equipment.
A kind of active positioning method embodiment 2 based on WiFi:
As in figure 2 it is shown, a kind of active positioning method based on WiFi, it is characterised in that described active positioning method based on WiFi comprises the following steps:
Step S1: analyze place situation, uses WiFi equipment to carry out the structure of WiFi location network.
Build wifi for different space enrironment and position network, reduce the scattering of signal the most as far as possible, reflect, the factor impact on locating effect such as interfere.
Step S2: carry out actively gathering to the mobile terminal WiFi signal of user；
Actively gather, be that mobile terminal need not do any extra process, just as long as carrying out data communication according to WiFi standard can be caught by WiFi equipment and analyze.
Step S3: the various link layers in the mobile terminal WiFi signal of user and MAC layer parameter are analyzed；
Described step S3: the various link layers in mobile terminal WiFi signal and MAC layer parameter are analyzed step and include: the modulation /demodulation parameter in link layer, channel, signal intensity, Frame parameter, sample Loss Rate, message sequence, message retransmission rate and mobile terminal device MAC are analyzed.
Described step S2: carry out mobile terminal WiFi signal actively gathering, step S3: by WiFi equipment mobile terminal WiFi signal be acquired during the modulation /demodulation parameter in link layer, channel, signal intensity, Frame parameter, sample Loss Rate, message sequence, message retransmission rate and mobile terminal device MAC are analyzed and analyze.
Step S4: calculate the reference value of spatial relationship between customer mobile terminal and each WiFi equipment；
Described step S4: the reference value step calculating the spatial relationship between customer mobile terminal and each WiFi equipment includes: use average weighted algorithm, square root algorithm, sampling than one or more methods in algorithm, the reference value of the spatial relationship between customer mobile terminal and WiFi equipment to be calculated.
Algorithm can be with unrestricted choice and definition, different occasions, and different requirement uses algorithms of different, such as: environment is poor, the occasion that precision prescribed is higher again, use the sampling that sample is the biggest plus increasingly complex square root correction algorithm, but the algorithm so selected is computationally intensive, and speed is slow.Common store occasion, uses meansigma methods weighting algorithm to be sufficient to.
Step S5: draw the position of customer mobile terminal after the spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted.
Described step S5: draw in the position of mobile terminal after the spatial relationship reference value between mobile terminal and each WiFi equipment is contrasted, positioning precision adjustment can be carried out according to the deployment of WiFi equipment.
Contrast itself can also have many algorithms, as equal proportion contrasts, and error threshold values contrast etc..
By customer mobile terminal WiFi signal being acquired and analyzing, calculate the reference value of spatial relationship between customer mobile terminal and each WiFi equipment, the position of customer mobile terminal is drawn after spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted, above-mentioned steps can realize WiFi equipment and be accurately positioned, without additionally disposing location equipment, lower deployment cost can be reduced.It addition, positioning precision adjustment can be carried out according to the deployment of WiFi equipment.
A kind of active positioning method embodiment 3 based on WiFi:
As it is shown on figure 3, a kind of active positioning method based on WiFi, it is characterised in that described active positioning method based on WiFi comprises the following steps:
Step S1: analyze place situation, uses WiFi equipment to carry out the structure of WiFi location network.
Build wifi for different space enrironment and position network, reduce the scattering of signal the most as far as possible, reflect, the factor impact on locating effect such as interfere.
Step S2: carry out actively gathering to the mobile terminal WiFi signal of user；
Actively gather, be that mobile terminal need not do any extra process, just as long as carrying out data communication according to WiFi standard can be caught by WiFi equipment and analyze.
Step S3: the various link layers in the mobile terminal WiFi signal of user and MAC layer parameter are analyzed；
Described step S3: the various link layers in mobile terminal WiFi signal and MAC layer parameter are analyzed step and include: the modulation /demodulation parameter in link layer, channel, signal intensity, Frame parameter, sample Loss Rate, message sequence, message retransmission rate and mobile terminal device MAC are analyzed.
Described step S2: carry out mobile terminal WiFi signal actively gathering, step S3: by WiFi equipment mobile terminal WiFi signal be acquired during the modulation /demodulation parameter in link layer, channel, signal intensity, Frame parameter, sample Loss Rate, message sequence, message retransmission rate and mobile terminal device MAC are analyzed and analyze.
Step S4: calculate the reference value of spatial relationship between customer mobile terminal and each WiFi equipment；
Described step S4: the reference value step calculating the spatial relationship between customer mobile terminal and each WiFi equipment includes: use average weighted algorithm, square root algorithm, sampling than one or more methods in algorithm, the reference value of the spatial relationship between customer mobile terminal and WiFi equipment to be calculated.
Algorithm can be with unrestricted choice and definition, different occasions, and different requirement uses algorithms of different, such as: environment is poor, the occasion that precision prescribed is higher again, use the sampling that sample is the biggest plus increasingly complex square root correction algorithm, but the algorithm so selected is computationally intensive, and speed is slow.Common store occasion, uses meansigma methods weighting algorithm to be sufficient to.
Step S5: draw the position of customer mobile terminal after the spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted.
Described step S5: draw in the position of mobile terminal after the spatial relationship reference value between mobile terminal and each WiFi equipment is contrasted, positioning precision adjustment can be carried out according to the deployment of WiFi equipment.
Contrast itself can also have many algorithms, as equal proportion contrasts, and error threshold values contrast etc..
Step S6: by synthetic user location information of mobile terminal, calculate the running orbit of customer mobile terminal；
The running orbit of user embodies the intention of individual to a certain extent, likes, is accustomed to and behavior pattern for living, by the analysis of the running orbit of user being provided service based on track position, if having understood the rule of life of individual, location Based service just can give user in due course effectively to be recommended.
By customer mobile terminal WiFi signal being acquired and analyzing, calculate the reference value of spatial relationship between customer mobile terminal and each WiFi equipment, the position of customer mobile terminal is drawn after spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted, above-mentioned steps can realize WiFi equipment and be accurately positioned, without additionally disposing location equipment, lower deployment cost can be reduced.It addition, positioning precision adjustment can be carried out according to the deployment of WiFi equipment.
A kind of active location system embodiment based on WiFi:
A kind of active location system based on WiFi, described active location system based on WiFi includes:
Signal acquisition module 1, gathers for the mobile terminal WiFi signal of user is carried out active；
Signal analysis module 2, for being analyzed the various link layers in the mobile terminal WiFi signal of user and MAC layer parameter；
Spatial relationship computing module 3, for calculating the reference value of the spatial relationship between customer mobile terminal and each WiFi equipment；
Contrast module 4, draws the position of customer mobile terminal after the spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted.
Described active location system based on WiFi also includes: running orbit computing module 5, for synthetic user location information of mobile terminal, calculates the running orbit of customer mobile terminal.
Described active location system based on WiFi also includes: ambient As module 6, is used for analyzing place situation, uses WiFi equipment to carry out the structure of WiFi location network.
The advantage that the present invention implements: by customer mobile terminal WiFi signal being acquired and analyzing, calculate the reference value of spatial relationship between customer mobile terminal and each WiFi equipment, the position of customer mobile terminal is drawn after spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted, above-mentioned steps can realize WiFi equipment and be accurately positioned, without additionally disposing location equipment, lower deployment cost can be reduced.It addition, positioning precision adjustment can be carried out according to the deployment of WiFi equipment.
The above; being only the detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any those skilled in the art is in technical scope disclosed by the invention; the change that can readily occur in or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (10)
1. an active positioning method based on WiFi, it is characterised in that described active positioning method based on WiFi comprises the following steps:
Mobile terminal WiFi signal is acquired；
Link layer in mobile terminal WiFi signal and MAC layer parameter are analyzed；
The reference value of spatial relationship between mobile terminal and each WiFi equipment is gone out according to Analysis result calculation；
The position of mobile terminal is drawn after spatial relationship reference value between mobile terminal and each WiFi equipment being contrasted.
Active positioning method based on WiFi the most according to claim 1, it is characterized in that, the described actively acquisition step that carries out mobile terminal WiFi signal can perform following steps before performing: analyze place situation, use WiFi equipment to carry out the structure of WiFi location network.
Active positioning method based on WiFi the most according to claim 1, it is characterized in that, described various link layers in mobile terminal WiFi signal and MAC layer parameter are analyzed step include: the modulation /demodulation parameter in link layer, channel, signal intensity, Frame parameter, sample Loss Rate, message sequence, message retransmission rate and mobile terminal device MAC are analyzed.
Active positioning method based on WiFi the most according to claim 1, it is characterized in that, described in calculate the reference value step of the spatial relationship between customer mobile terminal and each WiFi equipment and include: use average weighted algorithm, square root algorithm, sampling than one or more methods in algorithm, the reference value of the spatial relationship between customer mobile terminal and WiFi equipment to be calculated.
Active positioning method based on WiFi the most according to claim 1, it is characterized in that, described carry out mobile terminal WiFi signal actively gathering, the link layer in mobile terminal WiFi signal and MAC layer parameter are analyzed in by WiFi equipment mobile terminal WiFi signal is acquired and analyzes.
Active positioning method based on WiFi the most according to claim 1, it is characterized in that, described spatial relationship reference value between mobile terminal and each WiFi equipment is contrasted after draw in the position of mobile terminal, positioning precision adjustment can be carried out according to the deployment of WiFi equipment.
7. according to the active positioning method based on WiFi one of claim 1 to 6 Suo Shu, it is characterised in that described active positioning method based on WiFi is further comprising the steps of: by comprehensive multiple location information of mobile terminal, calculate the running orbit of mobile terminal.
8. an active location system based on WiFi, it is characterised in that described active location system based on WiFi includes:
Signal acquisition module, gathers for the mobile terminal WiFi signal of user is carried out active；
Signal analysis module, for being analyzed the various link layers in the mobile terminal WiFi signal of user and MAC layer parameter；
Spatial relationship computing module, for calculating the reference value of the spatial relationship between customer mobile terminal and each WiFi equipment；
Contrast module, draws the position of customer mobile terminal after the spatial relationship reference value between each WiFi equipment and customer mobile terminal being contrasted.
Active location system based on WiFi the most according to claim 8, it is characterized in that, described active location system based on WiFi also includes: running orbit computing module, for synthetic user location information of mobile terminal, calculates the running orbit of customer mobile terminal.
Active location system based on WiFi the most according to claim 9, it is characterised in that described active location system based on WiFi also includes: ambient As module, is used for analyzing place situation, uses WiFi equipment to carry out the structure of WiFi location network.
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| CN201510008942.9A CN105828282A (en) | 2015-01-08 | 2015-01-08 | Active positioning method and system based on WiFi |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652137A (en) * | 2016-12-27 | 2017-05-10 | 上海斐讯数据通信技术有限公司 | WIFI-based scenic spot entrance guard examination system and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652137A (en) * | 2016-12-27 | 2017-05-10 | 上海斐讯数据通信技术有限公司 | WIFI-based scenic spot entrance guard examination system and use method thereof |
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Application publication date: 20160803 |