CN114089323A - Method for identifying and positioning wireless interference source - Google Patents
Method for identifying and positioning wireless interference source Download PDFInfo
- Publication number
- CN114089323A CN114089323A CN202111371523.3A CN202111371523A CN114089323A CN 114089323 A CN114089323 A CN 114089323A CN 202111371523 A CN202111371523 A CN 202111371523A CN 114089323 A CN114089323 A CN 114089323A
- Authority
- CN
- China
- Prior art keywords
- interference source
- measuring point
- longitude
- latitude
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000001228 spectrum Methods 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000003595 spectral effect Effects 0.000 claims abstract description 11
- 238000012937 correction Methods 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000004422 calculation algorithm Methods 0.000 claims description 3
- 238000009795 derivation Methods 0.000 claims description 3
- DDVBPZROPPMBLW-IZGXTMSKSA-N latrunculin A Chemical compound C([C@H]1[C@@]2(O)C[C@H]3C[C@H](O2)CC[C@@H](\C=C/C=C/CC\C(C)=C/C(=O)O3)C)SC(=O)N1 DDVBPZROPPMBLW-IZGXTMSKSA-N 0.000 claims description 3
- NSHPHXHGRHSMIK-IWQSFCKSSA-N latrunculin B Natural products C[C@H]1CC[C@@H]2C[C@@H](C[C@@](O)(O2)[C@@H]3CSC(=O)N3)OC(=O)C=C(C)/CCC=C/1 NSHPHXHGRHSMIK-IWQSFCKSSA-N 0.000 claims description 3
- DDVBPZROPPMBLW-UHFFFAOYSA-N latrunculin-A Natural products O1C(=O)C=C(C)CCC=CC=CC(C)CCC(O2)CC1CC2(O)C1CSC(=O)N1 DDVBPZROPPMBLW-UHFFFAOYSA-N 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
-
- 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
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
- G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method for identifying and positioning a wireless interference source, which comprises the steps of determining an area to be analyzed; acquiring longitude and latitude information of a first measuring point, longitude and latitude information of a nearby base station and a distance between the first measuring point and the base station; taking a first average value of the spectral intensity of each frequency point on the electric power special frequency band of the first measuring point; calculating a correction factor of the radio transmission model and obtaining a determined radio transmission model; judging whether an interference source exists or not; converting the measuring point angle on the first measuring point and measuring for a plurality of times to obtain a corresponding relative azimuth angle when the maximum spectrum intensity is obtained; measuring again on the relative azimuth angle to obtain an interference source frequency spectrum intensity value and obtain an interference source distance; and calculating longitude and latitude information of the interference source and completing the identification and positioning of the wireless interference source. Compared with the prior art, the method has the advantages of higher reliability, better stability, more convenient implementation and higher efficiency.
Description
Technical Field
The invention belongs to the field of electrical automation, and particularly relates to a method for identifying and positioning a wireless interference source.
Background
With the development of economic technology and the improvement of living standard of people, electric energy becomes essential secondary energy in production and life of people, and brings endless convenience to production and life of people. Therefore, ensuring stable and reliable supply of electric energy is one of the most important tasks of the power system.
The normal operation of the power wireless communication is one of the prerequisites for the normal operation of the power system. According to the approval and the regulation of the state, the power industry has the authorization of 40 discrete frequency points in the frequency range of 223MHz to 235 MHz. Therefore, the wireless communication frequency band of the power industry belongs to the 230MHz frequency band.
However, according to the regulations in China, the spectrum of the 230MHz band is also supplied to a plurality of industrial users for common use. In addition, the country encourages the normal use of the free frequency band by the national. Therefore, unknown wireless interference such as private radio stations, LED billboards and the like inevitably exists in the frequency band.
However, in the case of the power system, other wireless signals in the frequency band may interfere with wireless communication of the power system, and in a serious case, the power system may be seriously damaged. Therefore, the power system needs to evaluate, locate, identify, and the like the distribution of the wireless interference in the frequency band.
However, the existing wireless interference positioning and identifying method is not only extremely complex and expensive, but also very complicated in implementation process and extremely low in efficiency.
Disclosure of Invention
The invention aims to provide a method for identifying and positioning a wireless interference source, which has high reliability, good stability, convenient implementation and higher efficiency.
The method for identifying and positioning the wireless interference source comprises the following steps:
s1, determining an area to be analyzed;
s2, acquiring longitude and latitude information of a first measuring point, longitude and latitude information of a nearby base station and a distance between the first measuring point and the base station in the area to be analyzed;
s3, measuring and acquiring a first average value of the frequency spectrum intensity of each frequency point on the electric power special frequency band on a first measuring point;
s4, calculating a correction factor of the radio transmission model according to the first average value obtained in the step S3, and thus obtaining a determined radio transmission model;
s5, judging whether an interference source exists according to the frequency spectrum intensity of each frequency point on the special electric power frequency band and the frequency spectrum intensity of the base station on the special electric power frequency band:
if no interference source exists, the algorithm is ended;
if the interference source exists, performing the subsequent steps;
s6, converting the measuring point angle on the first measuring point and measuring for a plurality of times, so as to obtain a corresponding relative azimuth angle when the maximum spectrum intensity is obtained;
s7, measuring again on the relative azimuth angle obtained in the step S6 to obtain an interference source frequency spectrum intensity value, and obtaining an interference source distance through the determined radio transmission model;
and S8, calculating longitude and latitude information of the interference source, thereby completing the identification and positioning of the wireless interference source.
Step S4, calculating a correction factor of the radio transmission model according to the first average value obtained in step S3, specifically including the steps of:
the correction factor of the radio transmission model is calculated using the following equation:
PL(db)＝69.55+26.16lgfc-alg(hr)+(44.9-6.55lght)lg(d)
in the formula PL(db) signal strength measured by the measuring point instrument; f. ofcIs the calculated frequency value of the radio; h isrIs the effective height of the transmitting antenna; h is a total oftIs the effective height of the receiving antenna; d is the distance between the transmitting point and the receiving point.
Step S5, determining whether there is an interference source according to the spectrum intensity of each frequency point on the electric power dedicated frequency band and the spectrum intensity of the base station on the electric power dedicated frequency band, specifically including the following steps:
A. measuring and acquiring a frequency spectrum on a power dedicated frequency band at a first measuring point;
B. measuring and acquiring a frequency spectrum of a base station on a power dedicated frequency band at a first measuring point;
C. subtracting the spectral value obtained in the step B from the spectral value obtained in the step A to obtain a judgment spectral value;
D. and D, judging the judgment spectrum value obtained in the step C:
if the peak value exists, judging that an interference source exists;
and if the peak value does not exist, judging that no interference source exists.
Step S6, transforming the measurement point angle at the first measurement point and performing several measurements to obtain the corresponding relative azimuth angle at the maximum spectral intensity, specifically including the following steps:
measuring point angles are changed on the first measuring point and a plurality of times of measurement are carried out, and the intensity of the maximum interference source frequency spectrum obtained by measurement is obtained, so that a corresponding interference source azimuth angle is obtained; and comparing the azimuth with the corresponding azimuth of the first measuring point-base station to obtain a relative azimuth.
The step S8 of calculating longitude and latitude information of the interference source specifically includes the following steps:
the longitude and latitude of the first measuring point is (LonA, LatA); the longitude and latitude of the base station is (LonB, LatB);
according to the reference of 0-degree warp, the east warp takes a positive value of Longitude (namely Longitude), the west warp takes a negative value of Longitude (namely Longitude), the north weft takes a 90-Latitude value (namely 90-Latitude), the south weft takes a 90+ Latitude value (namely 90+ Latitude), the processed Longitude and Latitude of the first measuring point are (MLonA, MLataA), and the Longitude and Latitude of the base station are (MLonB, MLatB);
from the trigonometric derivation, the following calculation equation is obtained:
C＝sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos(MLatB)
c is radian corresponding to two positions of the earth; d is the distance between the actual arcs corresponding to the two positions on the earth; r is the radius of the earth;
and if the first measuring point, the base station and the interference source are approximately triangular, simultaneous calculation equations are solved according to the obtained interference source distance and the relative azimuth angle to obtain longitude and latitude information (MLonX, MLatX) of the interference source.
The method for identifying and positioning the wireless interference source provided by the invention establishes a comparison model for the interference source by means of the actual information and the position information of the existing 230MHz base station, evaluates the distance and the measurement angle of the interference source through the comparison model and finally positions the interference source; therefore, the method has the advantages of higher reliability, better stability, more convenient implementation and higher efficiency.
Drawings
FIG. 1 is a schematic process flow diagram of the process of the present invention.
Detailed Description
FIG. 1 is a schematic flow chart of the method of the present invention: the method for identifying and positioning the wireless interference source comprises the following steps:
s1, determining an area to be analyzed;
s2, acquiring longitude and latitude information of a first measuring point, longitude and latitude information of a nearby base station and a distance between the first measuring point and the base station in the area to be analyzed;
s3, measuring and acquiring a first average value of the frequency spectrum intensity of each frequency point on the electric power special frequency band on a first measuring point;
s4, calculating a correction factor of the radio transmission model according to the first average value obtained in the step S3, and thus obtaining a determined radio transmission model; the method specifically comprises the following steps:
the correction factor of the radio transmission model is calculated using the following equation:
PL(db)＝69.55+26.16lgfc-alg(hr)+(44.9-6.55lght)lg(d)
in the formula PL(db) signal strength measured by the measuring point instrument; f. ofcIs the calculated frequency value of the radio; h isrIs the effective height of the transmitting antenna; h is a total oftIs the effective height of the receiving antenna; d is the distance between the transmitting point and the receiving point;
s5, judging whether an interference source exists according to the frequency spectrum intensity of each frequency point on the special electric power frequency band and the frequency spectrum intensity of the base station on the special electric power frequency band:
if no interference source exists, the algorithm is ended;
if the interference source exists, performing the subsequent steps;
in specific implementation, the following steps are adopted to judge whether an interference source exists:
A. measuring and acquiring a frequency spectrum on a power dedicated frequency band at a first measuring point;
B. measuring and acquiring a frequency spectrum of a base station on a power dedicated frequency band at a first measuring point;
C. subtracting the spectral value obtained in the step B from the spectral value obtained in the step A to obtain a judgment spectral value;
D. and D, judging the judgment spectrum value obtained in the step C:
if the peak value exists, judging that an interference source exists;
if the peak value does not exist, judging that no interference source exists;
s6, converting the measuring point angle on the first measuring point and measuring for a plurality of times, so as to obtain a corresponding relative azimuth angle when the maximum spectrum intensity is obtained; the method specifically comprises the following steps:
measuring point angles are changed on the first measuring point and a plurality of times of measurement are carried out, and the intensity of the maximum interference source frequency spectrum obtained by measurement is obtained, so that a corresponding interference source azimuth angle is obtained; then comparing the azimuth with the corresponding azimuth of the first measuring point-base station to obtain a relative azimuth angle;
s7, measuring again on the relative azimuth angle obtained in the step S6 to obtain an interference source frequency spectrum intensity value, and obtaining an interference source distance through the determined radio transmission model;
s8, calculating longitude and latitude information of the interference source, and accordingly completing identification and positioning of the wireless interference source; the method specifically comprises the following steps:
the longitude and latitude of the first measuring point is (LonA, LatA); the longitude and latitude of the base station is (LonB, LatB);
according to the reference of 0-degree warp, the east warp takes a positive value of Longitude (namely Longitude), the west warp takes a negative value of Longitude (namely Longitude), the north weft takes a 90-Latitude value (namely 90-Latitude), the south weft takes a 90+ Latitude value (namely 90+ Latitude), the processed Longitude and Latitude of the first measuring point are (MLonA, MLataA), and the Longitude and Latitude of the base station are (MLonB, MLatB);
from the trigonometric derivation, the following calculation equation is obtained:
C＝sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos(MLatB)
c is the radian corresponding to two positions of the earth; d is the distance between the actual arcs corresponding to the two positions on the earth; r is the radius of the earth;
and if the first measuring point, the base station and the interference source are approximately triangular, simultaneous calculation equations are solved according to the obtained interference source distance and the relative azimuth angle to obtain longitude and latitude information (MLonX, MLatX) of the interference source.
Claims (6)
1. A method for identifying and positioning a wireless interference source comprises the following steps:
s1, determining an area to be analyzed;
s2, acquiring longitude and latitude information of a first measuring point, longitude and latitude information of a nearby base station and a distance between the first measuring point and the base station in the area to be analyzed;
s3, measuring and acquiring a first average value of the frequency spectrum intensity of each frequency point on the electric power special frequency band on a first measuring point;
s4, calculating a correction factor of the radio transmission model according to the first average value obtained in the step S3, and thus obtaining a determined radio transmission model;
s5, judging whether an interference source exists according to the frequency spectrum intensity of each frequency point on the special electric power frequency band and the frequency spectrum intensity of the base station on the special electric power frequency band:
if no interference source exists, the algorithm is ended;
if the interference source exists, performing the subsequent steps;
s6, converting the measuring point angle on the first measuring point and measuring for a plurality of times, so as to obtain a corresponding relative azimuth angle when the maximum spectrum intensity is obtained;
s7, measuring again on the relative azimuth angle obtained in the step S6 to obtain an interference source frequency spectrum intensity value, and obtaining an interference source distance through the determined radio transmission model;
and S8, calculating longitude and latitude information of the interference source according to the interference source distance obtained in the step S7, the phase azimuth obtained in the step S6 and the longitude and latitude information of the first measuring point obtained in the step S1, thereby completing the identification and positioning of the wireless interference source.
2. The method as claimed in claim 1, wherein the step S4 of calculating the correction factor of the radio transmission model according to the first average value obtained in step S3 includes the following steps:
the correction factor of the radio transmission model is calculated using the following equation:
PL(db)＝69.55+26.16lgfc-alg(hr)+(44.9-6.55lght)lg(d)
in the formula PL(db) signal strength measured by the measuring point instrument; f. ofcIs the calculated frequency value of the radio; h isrIs the effective height of the transmitting antenna; h istIs the effective height of the receiving antenna; d is the distance between the transmitting point and the receiving point.
3. The method for identifying and locating a wireless interference source according to claim 2, wherein the step S5 of determining whether an interference source exists according to the spectrum intensity of each frequency point on the electric power dedicated frequency band and the spectrum intensity of the base station on the electric power dedicated frequency band specifically includes the following steps:
A. measuring and acquiring a frequency spectrum on a power dedicated frequency band at a first measuring point;
B. measuring and acquiring a frequency spectrum of a base station on a power dedicated frequency band at a first measuring point;
C. subtracting the spectral value obtained in the step B from the spectral value obtained in the step A to obtain a judgment spectral value;
D. and D, judging the judgment spectrum value obtained in the step C:
if the peak value exists, judging that an interference source exists;
and if the peak value does not exist, judging that no interference source exists.
4. The method as claimed in claim 3, wherein the step S6 of transforming the measuring point angle at the first measuring point and performing several measurements to obtain the corresponding relative azimuth angle with the maximum spectrum intensity comprises the following steps:
measuring point angles are changed on the first measuring point and a plurality of times of measurement are carried out, and the intensity of the maximum interference source frequency spectrum obtained by measurement is obtained, so that a corresponding interference source azimuth angle is obtained; and comparing the azimuth with the corresponding azimuth of the first measuring point-base station to obtain a relative azimuth.
5. The method as claimed in claim 4, wherein the measuring point angle is transformed at the first measuring point and measured several times in step S6, so as to measure the corresponding relative azimuth angle at the time of maximum spectrum intensity.
6. The method for identifying and locating a wireless interference source according to claim 5, wherein the step of calculating latitude and longitude information of the interference source in step S8 specifically includes the following steps:
the longitude and latitude of the first measuring point is (LonA, LatA); the longitude and latitude of the base station is (LonB, LatB);
according to the reference of 0-degree Longitude, the east Longitude takes a positive value (namely Longitude), the west Longitude takes a negative value (namely-Longitude), the north Latitude takes a 90-Latitude value (namely 90-Latitude), and the south Latitude takes a 90+ Latitude value (namely 90+ Latitude), so that the processed Longitude and Latitude of the first measuring point are (MLonA, MLatA) and the Longitude and Latitude of the base station are (MLonB, MLatB);
from the trigonometric derivation, the following calculation equation is obtained:
C＝sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos(MLatB)
c is radian corresponding to two positions of the earth; d is the distance between the actual arcs corresponding to the two positions on the earth; r is the radius of the earth;
and if the first measuring point, the base station and the interference source are approximately triangular, simultaneous calculation equations are solved according to the obtained interference source distance and the relative azimuth angle to obtain longitude and latitude information (MLonX, MLatX) of the interference source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371523.3A CN114089323A (en) | 2021-11-18 | 2021-11-18 | Method for identifying and positioning wireless interference source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371523.3A CN114089323A (en) | 2021-11-18 | 2021-11-18 | Method for identifying and positioning wireless interference source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114089323A true CN114089323A (en) | 2022-02-25 |
Family
ID=80301938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111371523.3A Pending CN114089323A (en) | 2021-11-18 | 2021-11-18 | Method for identifying and positioning wireless interference source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114089323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117471191A (en) * | 2023-12-26 | 2024-01-30 | 中国人民解放军国防科技大学 | Electromagnetic environment monitoring system and monitoring method |
-
2021
- 2021-11-18 CN CN202111371523.3A patent/CN114089323A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117471191A (en) * | 2023-12-26 | 2024-01-30 | 中国人民解放军国防科技大学 | Electromagnetic environment monitoring system and monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106793082B (en) | Mobile equipment positioning method in WLAN/Bluetooth heterogeneous network environment | |
| CN101808359B (en) | Method and device for positioning terminal in long-term evolution system | |
| CN108051772A (en) | Width be combined measurement incoming wave azimuth information method | |
| CN204142952U (en) | Bluetooth real-time dynamic positioning system and Bluetooth base. station | |
| CN106125045B (en) | A kind of ADAPTIVE MIXED indoor orientation method based on Wi-Fi | |
| CN113271540B (en) | Bluetooth signal positioning method, multi-signal fusion positioning method and system | |
| CN103517285A (en) | Method and system for coverage performance evaluation of antenna | |
| EP2993481A1 (en) | Fast test method for total radiation power of terminal antenna | |
| CN110831017A (en) | Site selection method for power system wireless private network base station construction | |
| CN114089323A (en) | Method for identifying and positioning wireless interference source | |
| CN106707237A (en) | Indoor positioning method and system based on visible light | |
| CN110636515A (en) | Network planning evaluation method of electric power wireless private network | |
| CN102340806A (en) | Method and equipment for determining antenna direction angle | |
| CN208820791U (en) | A kind of onboard wireless pyroelectric monitor system | |
| CN111896814A (en) | System and method for measuring ground-to-air information radar antenna lobe parameters | |
| CN102279321A (en) | Portable low-frequency/very-low-frequency electromagnetic wave signal intensity detection device | |
| CN114268900B (en) | Indoor positioning method and system | |
| CN107330939B (en) | Visible light positioning system and method based on mine roadway lamp | |
| CN212845623U (en) | Ground-to-air information radar antenna lobe parameter measuring system | |
| CN106303954A (en) | A kind of bluetooth self-help tourist guide apparatus based on zone location distinguished number | |
| CN102833017A (en) | Quick test method for omnidirectional radiation power of mobile phone | |
| CN108398660A (en) | A kind of terminal device localization method and system based on Wi-Fi cloud platform systems | |
| CN207706340U (en) | A kind of TV signal detecting system based on FI1256 high-frequency tuners | |
| CN103592623B (en) | A kind of indoor orientation method based on signal intensity map and device | |
| CN105933078B (en) | The single pass optimization of multiple antennas is than width radio direction-finding system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |