CN104502890B - A kind of wireless WiFi signal source orientation method - Google Patents
A kind of wireless WiFi signal source orientation method Download PDFInfo
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- CN104502890B CN104502890B CN201410698749.8A CN201410698749A CN104502890B CN 104502890 B CN104502890 B CN 104502890B CN 201410698749 A CN201410698749 A CN 201410698749A CN 104502890 B CN104502890 B CN 104502890B
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- signal
- wireless wifi
- wifi signal
- signal strength
- directional aerial
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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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mobile Radio Communication Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a kind of wireless WiFi signal source orientation methods, it is analyzed using the wireless WiFi signal that directional aerial receives, in conjunction with the intrinsic parameter of directional aerial, horizontal radiation receiving angle and vertical radiation receiving angle, the orientation for judging wireless WiFi signal source provides the specific physical message of plane radio WiFi signal orientation radar map and the signal list and each signal that receive.Aspect accuracy of judgement of the present invention, method of the invention is simple, practical, response quickly.
Description
Technical field
The present invention relates to 2.4G rf signal analysis field, especially a kind of wireless WiFi signal source orientation method.
Background technology
Currently, the principle that wireless WiFi signal is detected or is detected both at home and abroad comparative maturity, corresponding wireless
WiFi signal specialty analysis software also there are many.However, the directional aerial by using high-precision, high-gain, narrow lobe coordinates
The realization that specific software layer algorithm to wireless WiFi signal source be accurately positioned this function yet there are no precedent.
The still unripe correlation technique that can be applied to carry out wireless WiFi signal source accurate azimuthal orientation at present,
The existing software and hardware technology that wireless WiFi signal is collected and is analyzed, such as fluke electronic instruments meters co of the U.S.
AirCheck wireless network testers and the Wi-Spy wireless network analysis instrument of MetaGeek companies of the U.S., do not have to nothing
The accurate of line WiFi signal orientation judges and to the automatically scanning function on horizontal 360-degree direction.And their main work(
In terms of being also only the maintenance for concentrating on WiFi networks, network health monitoring and the judgement of signal quality.
Invention content
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide a kind of wireless WiFi letters
Number source orientation method.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of wireless WiFi signal source orientation side
Method includes the following steps：
1）The 360 ° of rotations of directional aerial level are controlled, directional aerial receives wireless WiFi signal；
2）Parse and be packaged above-mentioned wireless WiFi signal, read the signal name of each wireless WiFi signal, signal strength,
MAC Address, and the list display each signal name of wireless WiFi signal, signal strength, MAC Address；
3）Each wireless each directional aerial of the WiFi signal on 360 ° of directions of level is read to horizontally rotate on unit
Signal strength calculates the top optimization direction judgment value of each wireless WiFi signal, and finally in orientation radar map using weighting method
Upper display.
The step 3）In, wireless WiFi signal top optimization direction judges that value calculating method is：With t degree for a directional aerial
Horizontally rotate unit, then for some wireless WiFi signal, obtains 360 °/t ° signal strength point；Each signal strength point
Signal strength values be multiplied by the corresponding azimuth angle value of the signal strength point, then divided by all signal strength points azimuth angle value
Summation, obtained value is exactly the top optimization direction judgment value of the WiFi signal.
In the present invention, t=10.
The computational methods of the azimuth angle value are：If the holder rotary speed of directional aerial is r degrees seconds, sample frequency
It it is f seconds/time, then the azimuth angle value of first signal strength point is r × f degree；The azimuth angle value of second signal strength point
Azimuth angle value for 2r × f degree, third signal strength point is 3 r × f degree, the azimuth angle value of remaining each signal strength point
The rest may be inferred.
Compared with prior art, the advantageous effect of present invention is that：Aspect accuracy of judgement of the present invention, the present invention
Method is simple, practical, response quickly；The present invention the reachable -120dB of signal receiving sensitivity, detection range be less than or equal to
100 meters, horizontal angular resolution reaches 10 degree, and frequency reception signal is 2400.0MHz ~ 2483.5MHz.
Description of the drawings
Fig. 1 is one embodiment of the invention method flow diagram.
Specific implementation mode
As shown in Figure 1, the present invention is by analyzing the wireless WiFi signal received using directional aerial, in conjunction with fixed
To the intrinsic parameter of antenna, horizontal radiation receiving angle and vertical radiation receiving angle judge the orientation of wireless WiFi signal source,
Provide the specific physical message of plane radio WiFi signal orientation radar map and the signal list and each signal that receive.It is fixed
Wireless WiFi signal is received to antenna, with its intrinsic physical parameter（Horizontal radiation receiving angle and vertical radiation receiving angle）
General orientation angles information is provided（Orientation angles information is exactly the intrinsic parameter of directional aerial, for example, the water of directional aerial
Flat radiation approach angles degree is 10 °, then, resolution ratio is exactly 10 °）；According to the wireless WiFi signal and directional aerial received
The angle that intrinsic parameter and directional aerial rotate horizontally, analyzes and determines the refined orientation of wireless WiFi signal, and with orientation thunder
Form up to figure is shown.Every specifying information of wireless WiFi signal includes signal name（SSID）, signal strength, MAC Address,
Cipher mode etc..
The present invention the specific implementation process is as follows：
1）Control 360 ° of rotations of level of directional aerial；
2）It receives wireless WiFi signal and parses；
3）Obtain the specifying information of wireless WiFi signal（Signal name, signal strength, MAC Address etc.）；
4）By this information of signal strength, signal strength of some wireless WiFi signal on 360 ° of directions of level is obtained
Distributed data（Corresponding angular resolution may be considered the horizontal radiation receiving angle of directional aerial substantially）；
5）It is handled according to weighted calculation, obtains the optimal judgement of some wireless WiFi signal orientation angles in the horizontal direction
Value；
6）The orientation angles of finally obtained each wireless WiFi signal are depicted on radar map.
The method of the present invention can be to using directional aerial as the center of circle, the side of the wireless WiFi signal source within the scope of 100 meters of radius
Position is more accurately judged.
In practical operation, the realization process of the method for the present invention is：
The first step：Based on the control command of Palco-D agreements, the horizontal rotation holder to carrying directional aerial is controlled
System；
Second step：The wireless WiFi signal data packet for having parsed and being packaged from wireless network card is received, is read therein every
The specifying information of a wireless WiFi signal；
Third walks：The specifying information of each wireless WiFi signal is subjected to list display；
4th step：It is strong to read each wireless signal of the WiFi signal on all angles unit on 360 ° of directions of level
Degree calculates the optimal judgment value in orientation of each wireless WiFi signal, and finally shown on orientation radar map using weighting method
Show.
For example, horizontally rotating unit with 10 ° for a directional aerial, then for some wireless WiFi signal, theoretically
It will obtain 360 °/10 °=36 signal strength points（Due to the use of be directional aerial, this wireless WiFi letter in very large range
Number signal strength values be 0）.The signal strength values of each signaling point are multiplied by its corresponding azimuth angle value（The cloud of directional aerial
Platform can rotate horizontally, and the rotary speed of holder is certain, such as five degree per seconds, if that rotation sampling one in one second
Secondary, the azimuth angle value of first signal strength point is exactly 50, the azimuth angle value of second signal strength point is exactly 100, according to this
Analogize）, then divided by each signaling point orientation angles summation, obtained value is exactly that the top optimization direction of this wireless WiFi signal is sentenced
Disconnected value.The method, which efficiently reduces the error for measuring and bringing, to be influenced, and precision is higher, is calculated simple.
Claims (3)
1. a kind of wireless WiFi signal source orientation method, which is characterized in that include the following steps：
1）The 360 ° of rotations of directional aerial level are controlled, directional aerial receives wireless WiFi signal；
2）Above-mentioned wireless WiFi signal is parsed and be packaged, signal name, signal strength, the MAC of each wireless WiFi signal are read
Address, and the list display each signal name of wireless WiFi signal, signal strength, MAC Address；
3）It reads each wireless each directional aerial of the WiFi signal on 360 ° of directions of level and horizontally rotates the signal on unit
Intensity calculates the top optimization direction judgment value of each wireless WiFi signal, and finally shown on orientation radar map using weighting method
Show；Wireless WiFi signal top optimization direction judges that value calculating method is：Be that a directional aerial horizontally rotates unit with t degree, then it is right
In some wireless WiFi signal, 360 °/t ° signal strength point is obtained；The signal strength values of each signal strength point are multiplied by this
The corresponding azimuth angle value of signal strength point, then divided by all signal strength points signal strength values summation, obtained value is just
It is the top optimization direction judgment value of this wireless WiFi signal.
2. wireless WiFi signal source orientation method according to claim 1, which is characterized in that t=10.
3. wireless WiFi signal source orientation method according to claim 2, which is characterized in that the meter of the azimuth angle value
Calculation method is：If the holder rotary speed of directional aerial is r degrees seconds, sample frequency is f seconds/time, then first signal strength point
Azimuth angle value be r × f degree；The azimuth angle value of second signal strength point is 2r × f degree, third signal strength point
Azimuth angle value is 3 r × f degree, and the rest may be inferred for the azimuth angle value of remaining each signal strength point.
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| CN201410698749.8A CN104502890B (en) | 2014-11-28 | 2014-11-28 | A kind of wireless WiFi signal source orientation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410698749.8A CN104502890B (en) | 2014-11-28 | 2014-11-28 | A kind of wireless WiFi signal source orientation method |
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| Publication Number | Publication Date |
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| CN104502890A CN104502890A (en) | 2015-04-08 |
| CN104502890B true CN104502890B (en) | 2018-08-07 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704846B (en) * | 2016-04-08 | 2023-04-18 | 四川师范大学 | Follow-up tracking WIFI transmission device and control method thereof |
| CN107526057A (en) * | 2016-06-21 | 2017-12-29 | 中兴通讯股份有限公司 | The method and device of positioning terminal |
| CN106535099A (en) * | 2016-11-28 | 2017-03-22 | 中国电子科技集团公司第四十八研究所 | Method for locating WiFi signal source |
| CN109975742B (en) * | 2017-12-28 | 2020-12-04 | 北京小米松果电子有限公司 | Signal emission direction detection method, detection device and readable storage medium |
Citations (5)
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|---|---|---|---|---|
| DE3147816C1 (en) * | 1981-12-03 | 1983-02-03 | Rohde & Schwarz GmbH & Co KG, 8000 München | Rotating radio direction finder |
| CN1853874A (en) * | 2005-04-25 | 2006-11-01 | Lg电子株式会社 | Position calculation system for mobile robot and charging-stand return system and method using the same |
| CN201191319Y (en) * | 2008-05-15 | 2009-02-04 | 马方立 | Semi-automatic radio direction measuring machine |
| CN201464642U (en) * | 2009-06-05 | 2010-05-12 | 成都点阵科技有限公司 | Radio direction-finding system by taking electronic compass as goniometer |
| CN101951299A (en) * | 2010-10-15 | 2011-01-19 | 上海聚星仪器有限公司 | Direction finding method and device for double-channel synchronous radio receiver |
-
2014
- 2014-11-28 CN CN201410698749.8A patent/CN104502890B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3147816C1 (en) * | 1981-12-03 | 1983-02-03 | Rohde & Schwarz GmbH & Co KG, 8000 München | Rotating radio direction finder |
| CN1853874A (en) * | 2005-04-25 | 2006-11-01 | Lg电子株式会社 | Position calculation system for mobile robot and charging-stand return system and method using the same |
| CN201191319Y (en) * | 2008-05-15 | 2009-02-04 | 马方立 | Semi-automatic radio direction measuring machine |
| CN201464642U (en) * | 2009-06-05 | 2010-05-12 | 成都点阵科技有限公司 | Radio direction-finding system by taking electronic compass as goniometer |
| CN101951299A (en) * | 2010-10-15 | 2011-01-19 | 上海聚星仪器有限公司 | Direction finding method and device for double-channel synchronous radio receiver |
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