CN108471598A - A kind of action trail acquisition method based on WIFI probes - Google Patents
A kind of action trail acquisition method based on WIFI probes Download PDFInfo
- Publication number
- CN108471598A CN108471598A CN201810368102.7A CN201810368102A CN108471598A CN 108471598 A CN108471598 A CN 108471598A CN 201810368102 A CN201810368102 A CN 201810368102A CN 108471598 A CN108471598 A CN 108471598A
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- China
- Prior art keywords
- wireless network
- network access
- access device
- mobile terminal
- wifi probes
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Classifications
-
- 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
- H04W4/029—Location-based management or tracking services
-
- 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
- G01S5/0257—Hybrid positioning
-
- 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
- G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a kind of action trail acquisition method based on WIFI probes, includes the following steps：(1) several wireless network access devices AP is equipped in certain area coverage；(2) user is wirelessly connected by portable mobile terminal device and the wireless network access device AP；(3) each wireless network access device AP obtains the MAC Address and RSSI signal values of mobile terminal device by WIFI probes；The present invention can obtain relatively accurately customer position information, be beneficial to the accurately acquisition Customer Location information of various business models.
Description
Technical field
The invention belongs to field of information processing, more particularly, to a kind of action trail acquisition side based on WIFI probes
Method.
Background technology
In the past, trade company is in statistics mall information, such as the volume of the flow of passengers, measure to shop, hot spot retail shop, daily peak period information when,
Using the method for manual record, because cannot be 24 hours, the observation of 60 minutes Non-intermittents be used to put general face, method obtain
General data, such method needs are a large amount of artificial, take time and effort, it was therefore concluded that might not but can guarantee its accuracy.
Invention content
In view of this, the invention is directed to a kind of action trail acquisition method based on WIFI probes, to overcome
Directly judging the mode of customer position information according to WIFI signal intensity value in the prior art, there are the low defects of accuracy.
In order to achieve the above objectives, the technical solution of the invention is realized in：
A kind of action trail acquisition method based on WIFI probes, includes the following steps：
(1) several wireless network access devices AP is equipped in certain area coverage；
(2) user is wirelessly connected by portable mobile terminal device and the wireless network access device AP；
(3) each wireless network access device AP obtains the addresses MAC and the RSSI of mobile terminal device by WIFI probes
Signal value；
(4) addresses Mac and the packing of RSSI signal values are uploaded to data server by each wireless network access device AP；
(5) data server described in obtains the data of each wireless network access device AP, then will be in data
RSSI signal values acquire mobile terminal device respectively between each wireless network access device AP by position calculation formula
Radius distance.
(6) accurate coordinates of mobile terminal device are obtained by three-point fix algorithm and exports result.
Further, the wireless network access device AP described in step (1) is that the wireless network access with WIFI probes is set
Standby AP.
Further, the wireless network access device AP in the regional extent described in step (1) includes at least 3.
Further, the position calculation formula described in step (5) is,
D=10^ ((abs (RSSI)-A)/(10*n))
Wherein, d is radius distance；RSSI is received signal strength；A is that mobile terminal and wireless network access device are separated by
Signal strength when 1m；N is the environmental attenuation factor.
Further, the step (6) further includes filter false coordinate, and its step are as follows：
(61) after obtaining accurate coordinates, and mobile terminal device coordinate is obtained in real time and is updated；
(62) when relative distance exceeds the above movement speed of 3 meter per seconds within the unit interval between update coordinate and former coordinate,
Section shifting is judged as abnormal displacements
(63) the update coordinate described in is judged as that error coordinates are filtered, and as a result keeps former coordinate.
Compared with the existing technology, a kind of action trail acquisition method based on WIFI probes described in the invention has
Following advantage：
The present invention is accurately judged the position of intelligent movable equipment user according to three-point fix algorithm and more equipment
The RSSI value of AP is beneficial to the accurately acquisition client position of various business models to obtain relatively accurately customer position information
Confidence ceases；
The present invention carries out the perception of equipment using the radio broadcasting signal that smart machine quotient's wifi module is sent out.I.e. with
In the case that wifi is opened at family, the addresses Mac of other side are perceived by AP, information is uploaded to passenger flow analysing platform, the present invention
Acquisition methods are simple, quick, accurate.
Description of the drawings
The attached drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The illustrative embodiments and their description made do not constitute the improper restriction to the invention for explaining the invention.
In attached drawing：
Fig. 1 is the structural schematic diagram described in the invention embodiment.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies to describe, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
As shown in Figure 1, a kind of action trail acquisition method based on WIFI probes, includes the following steps：
(1) several wireless network access devices AP is equipped in certain area coverage；
(2) user is wirelessly connected by portable mobile terminal device and the wireless network access device AP；
(3) each wireless network access device AP obtains the addresses MAC and the RSSI of mobile terminal device by WIFI probes
Signal value；
(4) addresses Mac and the packing of RSSI signal values are uploaded to data server by each wireless network access device AP；
(5) data server described in obtains the data of each wireless network access device AP, then will be in data
RSSI signal values acquire mobile terminal device respectively between each wireless network access device AP by position calculation formula
Radius distance.
(6) accurate coordinates of mobile terminal device are obtained by three-point fix algorithm and exports result.
Further, the wireless network access device AP described in step (1) is that the wireless network access with WIFI probes is set
Standby AP.
Further, the wireless network access device AP in the regional extent described in step (1) includes at least 3.
Further, the position calculation formula described in step (5) is,
D=10^ ((abs (RSSI)-A)/(10*n))
Wherein, d is radius distance；RSSI is received signal strength；A is that mobile terminal and wireless network access device are separated by
Signal strength when 1m；N is the environmental attenuation factor.
Further, the step (6) further includes filter false coordinate, and its step are as follows：
(61) after obtaining accurate coordinates, and mobile terminal device coordinate is obtained in real time and is updated；
(62) when relative distance exceeds the above movement speed of 3 meter per seconds within the unit interval between update coordinate and former coordinate,
Section shifting is judged as abnormal displacements
(63) the update coordinate described in is judged as that error coordinates are filtered, and as a result keeps former coordinate.The present invention's is specific
Implementation process：
3 positions (x1, y1) of known wireless aps, (x2, y2), (x3, y3), it is known that the unknown point (x0, y0) of user arrives
3 points of distances d1, d2, d3 are that radius three circles of work obtain intersection point i.e. unknown point according to Pythagorean theorem with d1, d2, d3
Position calculation formula：
(x1-x0) ^2+ (y1-y0) ^2=d1^2
(x2-x0) ^2+ (y2-y0) ^2=d2^2
(x3-x0) ^2+ (y3-y0) ^2=d3^2
In addition, in conjunction with RSSI value (received signal strength), can be used for calculating distance between transmitting terminal and receiving terminal, the algorithm
Formula is：
D=10^ ((abs (RSSI)-A)/(10*n))
Wherein：D- calculates gained distance, RSSI- received signal strengths (negative value), when A- transmitting terminals and receiving terminal are separated by 1 meter
Signal strength, the n- environmental attenuation factors
To obtain the unknown point coordinates of user (x0, y0).
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection domain within.
Claims (5)
1. a kind of action trail acquisition method based on WIFI probes, which is characterized in that include the following steps：
(1) several wireless network access devices AP is equipped in certain area coverage；
(2) user is wirelessly connected by portable mobile terminal device and the wireless network access device AP；
(3) each wireless network access device AP obtains the MAC Address and RSSI signals of mobile terminal device by WIFI probes
Value；
(4) addresses Mac and the packing of RSSI signal values are uploaded to data server by each wireless network access device AP；
(5) data server described in obtains the data of each wireless network access device AP, then believes the RSSI in data
Number value acquires half span of the mobile terminal device respectively between each wireless network access device AP by position calculation formula
From.
(6) accurate coordinates of mobile terminal device are obtained by three-point fix algorithm and exports result.
2. a kind of action trail acquisition method based on WIFI probes according to claim 1, it is characterised in that：Step
(1) the wireless network access device AP described in is the wireless network access device AP with WIFI probes.
3. a kind of action trail acquisition method based on WIFI probes according to claim 1, it is characterised in that：Step
(1) the wireless network access device AP in the regional extent described in includes at least 3.
4. a kind of action trail acquisition method based on WIFI probes according to claim 1, it is characterised in that：Step
(5) the position calculation formula described in is,
D=10^ ((abs (RSSI)-A)/(10*n))
Wherein, d is radius distance；RSSI is received signal strength；When A is that mobile terminal and wireless network access device are separated by 1m
Signal strength；N is the environmental attenuation factor.
5. a kind of action trail acquisition method based on WIFI probes according to claim 1, it is characterised in that：Described
Step (6) further includes filter false coordinate, and its step are as follows：
(61) after obtaining accurate coordinates, and mobile terminal device coordinate is obtained in real time and is updated；
(62) when relative distance exceeds the above movement speed of 3 meter per seconds, the section within the unit interval between update coordinate and former coordinate
Displacement is judged as abnormal displacements
(63) the update coordinate described in is judged as that error coordinates are filtered, and as a result keeps former coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368102.7A CN108471598A (en) | 2018-04-23 | 2018-04-23 | A kind of action trail acquisition method based on WIFI probes |
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| CN201810368102.7A CN108471598A (en) | 2018-04-23 | 2018-04-23 | A kind of action trail acquisition method based on WIFI probes |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109922438A (en) * | 2019-01-10 | 2019-06-21 | 成都数据天空科技有限公司 | It is a kind of based on mobile phone positioning space in personnel positioning method and system |
| CN110491081A (en) * | 2019-08-02 | 2019-11-22 | 国网天津市电力公司 | Operating personnel dangerous point warning system and method in a kind of substation |
| CN110784821A (en) * | 2019-10-31 | 2020-02-11 | 杭州云深科技有限公司 | Mobile terminal positioning method and device and storage medium |
| CN111371814A (en) * | 2018-12-06 | 2020-07-03 | 北京奇虎科技有限公司 | Monitoring and processing method and device of electronic equipment and electronic equipment |
| CN111866725A (en) * | 2020-05-29 | 2020-10-30 | 上海数喆数据科技有限公司 | People stream detection method based on WIFI probe technology |
| CN112788742A (en) * | 2019-11-08 | 2021-05-11 | 杭州海康威视系统技术有限公司 | Positioning method, device, system, equipment and storage medium |
| CN115297426A (en) * | 2022-07-29 | 2022-11-04 | 成都智元汇信息技术股份有限公司 | Method for determining target position based on WIFI probe under special condition |
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| CN115297426A (en) * | 2022-07-29 | 2022-11-04 | 成都智元汇信息技术股份有限公司 | Method for determining target position based on WIFI probe under special condition |
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Application publication date: 20180831 |