CN111327383A - Intelligent black broadcast monitoring system and detection method thereof - Google Patents
Intelligent black broadcast monitoring system and detection method thereof Download PDFInfo
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- CN111327383A CN111327383A CN202010118445.5A CN202010118445A CN111327383A CN 111327383 A CN111327383 A CN 111327383A CN 202010118445 A CN202010118445 A CN 202010118445A CN 111327383 A CN111327383 A CN 111327383A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/12—Arrangements for observation, testing or troubleshooting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/27—Monitoring; Testing of receivers for locating or positioning the transmitter
Abstract
The invention relates to a black broadcast intelligent monitoring system and a detection method thereof, wherein the black broadcast intelligent monitoring system comprises a black broadcast intelligent monitoring node and background analysis software; the background analysis software refers to the black broadcast intelligent monitoring software installed in a background computer. Aiming at mobile drive test or fixed networking monitoring of black broadcasting, a black and white list mechanism is adopted, and a mode of combining frequency sweep monitoring and fixed frequency monitoring is used for visually displaying positioning data, sound, SNR (signal to noise ratio) or level values and the like of black broadcasting frequency points on an upper computer and visually displaying information such as black broadcasting emission positions and the like. The invention adopts a black and white list mechanism, can greatly improve the monitoring efficiency, and has high reliability by using a modular design.
Description
Technical Field
The invention relates to an electronic information technology, in particular to a black broadcast intelligent monitoring system and a detection method thereof.
Background
The black broadcast refers to an illegal broadcasting station which is not approved by radio and television administrative departments and radio management departments and is set up privately, is commonly used in FM broadcast frequency bands, is mainly used for commercial activities such as illegal drugs and illegal sales promotion, and causes great harm to aviation safety, social livelihood and the like.
The existing black broadcast monitoring technology generally adopts a mode of firstly monitoring direction finding by a fixed station and then moving to approach searching, is relatively passive in use, and has the following defects: firstly, the fixed station provides direction indication degree of a single frequency point for direction finding and positioning, so that the error is large for black broadcasting, and the monitoring range is limited; secondly, when moving and approaching to search, the black broadcast frequency point to be monitored needs to be artificially judged, and no method for automatically monitoring black broadcast in the whole FM broadcast frequency band is available at present; meanwhile, in the prior art, a monitoring system adopts a special distributed system, so that the cost is high, the weight is heavy, and the deployment and the use are inconvenient; and an independent monitoring node is adopted, so that the monitoring and analyzing data is single, and the efficiency is low.
Disclosure of Invention
The invention aims to provide a black broadcast intelligent monitoring system and a detection method thereof, and solves the problems of high cost, heavy weight and inconvenience in deployment and use caused by the use of a universal receiver in the prior art.
The technical solution of the present invention is achieved in that,
an intelligent black broadcast monitoring system is arranged in a mobile monitoring vehicle or at a fixed position and comprises a positioning unit, a black broadcast monitoring unit, a data transmission unit and a computer analysis control unit which are connected with each other;
the positioning unit is a device for generating a positioning signal of the black broadcasting intelligent monitoring system;
the black broadcast monitoring unit comprises an antenna, a black broadcast monitoring module and peripheral components;
the black broadcast monitoring module comprises an FM decoding special chip and peripheral components;
the data transmission unit comprises a communication antenna, a communication chip and peripheral components;
the computer analysis control unit comprises a computer chip, a storage chip and peripheral components;
and the computer analysis control unit acquires the black broadcast frequency point, sound, position, signal-to-noise ratio or level information of the black broadcast monitoring unit from the data transmission unit to analyze and visually display.
Furthermore, a telecommunication communication device is added in the data transmission unit, and the data transmission unit can be accessed to a communication network of a mobile operator; the telecommunication device comprises a telecommunication card and peripheral elements.
An intelligent monitoring method for black broadcasting comprises the following steps:
the background analysis data transmission unit sends a white list and a black list in the black broadcast configuration information to the black broadcast intelligent monitoring node;
step (2), one or more black broadcast intelligent monitoring nodes automatically monitor the whole FM broadcast frequency band, identify FM broadcast signals through waveforms, and screen out broadcast signal frequency points currently being transmitted;
step (3), if the frequency point is not in the white list, the black-broadcast intelligent monitoring node automatically refreshes the black list, records the position provided by the current positioning unit, the frequency point, the sound and the signal-to-noise ratio or the level provided by the black-broadcast monitoring unit, sends the frequency point, the sound and the signal-to-noise ratio or the level provided by the black-broadcast monitoring unit to a background through a data transmission unit, and continuously executes the step (2);
and (4) background analysis is carried out to draw real-time tracks of the intelligent black broadcast monitoring nodes and the thermodynamic diagram of the current frequency point, and if a white list and a black list in the black broadcast configuration information are changed, the step (1) is executed.
Step (5), the background can inquire the variation characteristics of the emission thermodynamic diagram of a certain black broadcast frequency point on a time axis and determine the emission position and the emission rule of the black broadcast frequency point;
the white list refers to an approved frequency point list used by a regular legal user;
the blacklist is a broadcast signal frequency point list except a white list, and comprises a frequency point list used by illegal users or unknown users and an unauthorized frequency point list used by normal legal users;
further, in the step (2), the automatic monitoring is frequency sweep monitoring and fixed frequency monitoring, the frequency sweep monitoring is carried out on the whole FM broadcast frequency band by default, and the fixed frequency monitoring is carried out on the frequency points which need to be continuously concerned;
the frequency sweep monitoring refers to the alternate flow monitoring after dividing channels by fixed stepping and fixed monitoring duration in the whole FM broadcast frequency band;
the fixed frequency monitoring refers to fixed frequency point monitoring on a certain FM broadcast frequency point.
Further, in the step (3), according to the signal-to-noise ratio or the level of the frequency points of the blacklist, when the signal-to-noise ratio or the level exceeds a preset threshold, the background gives an alarm message to prompt that the black broadcast is in a nearby range.
Further, in the step (4), according to the magnitude of the signal-to-noise ratio or the level of the frequency point, the distance of the broadcast transmission distance can be represented in a thermodynamic diagram manner.
Compared with the prior art, the invention has the following beneficial effects:
the invention has the advantages that,
(1) the invention can complete the intelligent monitoring of the black broadcast; the real-time monitoring with human participation can be implemented, and the visual analysis of historical monitoring data can also be implemented after unmanned monitoring is implemented; during use, the sweep frequency monitoring is defaulted, and the mode can be changed into a fixed frequency monitoring mode under background control, so that the result can be observed in real time conveniently;
(2) the invention adopts a black and white list mechanism, thereby greatly improving the monitoring efficiency.
(3) The invention carries the positioning unit, can record the broadcast information of the position accurately; representing the distance of the transmitting point by the SNR or the level of the receiving point, and visually displaying by using thermodynamic diagrams;
(4) the invention is convenient to deploy, can move the drive test and can also be deployed in a quick networking way; and the modular design is used, so that the reliability is high.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings that should be used will be briefly described below.
FIG. 1 is a network diagram of an implementation of the intelligent monitoring system for black broadcasting of the present invention;
FIG. 2 is a schematic block diagram of the intelligent monitoring device for black broadcasting of the present invention;
FIG. 3 is a schematic diagram of a blacklist and white list configuration interface of the intelligent black broadcast monitoring method according to the present invention;
FIG. 4 is a schematic diagram illustrating a black and white list setting of the intelligent black-and-white monitoring method according to the present invention;
FIG. 5 is a schematic diagram of a real-time trace interface of the intelligent monitoring method for black broadcasting according to the present invention;
FIG. 6 is a schematic diagram of a real-time warning of black broadcast monitoring according to the intelligent black broadcast monitoring method of the present invention;
FIG. 7 is a block flow diagram of a monitoring node in the intelligent monitoring method for black broadcasting according to the present invention;
fig. 8 is a flowchart of background software blocks in the intelligent monitoring method for black broadcasting according to the present invention.
Detailed Description
Embodiments of the invention are described below:
the invention is applied to the mobile drive test or the fixed networking aiming at the black broadcast; the real-time monitoring data and the historical monitoring data are fully utilized, and black broadcast monitoring is automatically carried out by adopting a black and white list mechanism; combining the positioning data, drawing tracks and thermodynamic diagrams by using frequency points and SNR or level values of the black broadcast signals monitored at different positions, and visually displaying the black broadcast transmitting positions; the black broadcast transmission rule and the coverage range can be displayed according to the thermodynamic diagram.
Referring to fig. 1, fig. 1 is a network diagram of an implementation of the intelligent black-broadcast monitoring system according to the present invention.
A black broadcast intelligent monitoring system, comprising:
one or more black broadcast intelligent monitoring nodes and background analysis software;
the black broadcast intelligent monitoring node can be arranged in a mobile monitoring vehicle or at a fixed position such as a height of a roof; both the two placement modes can be independently networked or mixed networked.
The background analysis software refers to black broadcast intelligent monitoring software installed in a background computer.
Independent networking means that all nodes are arranged in a mobile monitoring vehicle for mobile monitoring, or all nodes are arranged at fixed positions such as high positions of a roof for fixed monitoring.
The hybrid networking means that a part of nodes are arranged in a mobile monitoring vehicle for mobile monitoring, and the other part of nodes are arranged at fixed positions such as the height of a roof for fixed monitoring.
Referring to fig. 2, a schematic block diagram of a black broadcasting intelligent monitoring device, the system includes:
black broadcasting intelligent monitoring nodes and background analysis software;
the black broadcast intelligent monitoring node comprises a positioning unit, a black broadcast monitoring unit, a data transmission unit and a computer analysis control unit.
The background analysis software refers to black broadcast intelligent monitoring software installed in a computer. The black broadcasting intelligent monitoring software analyzes and processes the black broadcasting frequency point, position, SNR or level information of the black broadcasting monitoring unit obtained from the data transmission unit; and carrying out analysis and visual display.
Referring to fig. 3, a black and white list configuration interface of the intelligent black-and-white broadcast monitoring method is schematically illustrated.
In the figure, the middle axis is the frequency axis of the FM broadcast frequency band, the left side of the axis is a white list, and the right side is a black list; clicking the triangular symbols above and below the frequency axis can change the frequency axis range displayed in the current interface, and dragging the frequency axis up and down can achieve the same effect; double clicking on the frequency axis may look at black and white list information for the entire frequency axis.
The frequency axis refers to the effect that the FM broadcast frequency band is 87MHz-108MHz and is displayed in equal proportion on a line segment.
A single click hits a certain frequency, such as "105.5 MHz", the display interface is shown in figure 4,
referring to fig. 4, in order to show the interface after selecting the frequency "105.5 MHz" in fig. 3, the current frequency point viewed is displayed in the interface as 105.5MHz, and the current frequency point is configured as a blacklist;
the name of the black broadcasting intelligent monitoring node which is used for the current node to represent the last monitoring and reporting of the frequency point information of 105.5MHz is 'Mobile 1', and the sound of the frequency point monitored by the 'Mobile 1' node can be played after clicking 'Play';
if the configuration of the frequency point needs to be changed, the configuration is shown in the figure that a white list is selected to be added in a drop-down box after the frequency point is added, after a refresh button is clicked, the interface 4 disappears, and on the interface shown in the figure 3, the frequency of 105.5MHz is displayed on the left side of the frequency axis, namely one side of the white list; all black-and-white list configuration can be refreshed by all black-and-white broadcast intelligent monitoring nodes.
Referring to fig. 5, after the frequency point "105.5 MHz" is selected, all black broadcast intelligent monitoring nodes are switched to the fixed frequency monitoring mode, and the trajectories of all black broadcast intelligent monitoring nodes and the thermodynamic diagrams of the trajectory points are displayed in real time in the diagram.
Obviously, after different frequency points are set, due to the fact that the frequency points are different, monitoring effects, positions and paths of the black broadcast intelligent monitoring nodes are possibly different, and therefore the display effects of the thermodynamic diagrams are also different.
Referring to fig. 6, in the data reported to the black broadcast intelligent monitoring software by a certain black broadcast intelligent monitoring node, when the SNR or level of the black broadcast monitoring frequency point is greater than the threshold F1, the interface gives an alarm message to indicate that the position of the black broadcast emission source is approached.
The constant F1 is a threshold value for bin SNR or level determination.
And selecting 'loading historical data', namely loading the historical monitoring data of the frequency point and the real-time monitoring data at the same time, and displaying the historical monitoring data and the real-time monitoring data in a thermodynamic diagram form.
Referring to fig. 7, the invention relates to a black broadcast intelligent monitoring method; the black broadcasting intelligent monitoring node comprises the following steps, and the technical principle of the invention can be further understood.
And 703, starting to perform frequency sweeping monitoring on the FM broadcasting full frequency band by the black broadcasting intelligent monitoring node.
And step 704, disconnecting the black broadcast intelligent monitoring node from the background black broadcast intelligent monitoring software, and reestablishing the connection.
The result data includes, but is not limited to, frequency point, sound and SNR or level values.
And step 707, the black broadcast intelligent monitoring node starts fixed frequency monitoring.
And step 708, the black broadcasting intelligent monitoring node reports the data monitored at the fixed frequency to black broadcasting intelligent monitoring software of the background.
Referring to fig. 8, the invention relates to a black broadcast intelligent monitoring method; the intelligent monitoring of the black broadcast comprises the following steps: from which the technical principles of the present invention can be further understood.
And step 804, acquiring result data reported by each black broadcast intelligent monitoring node through the data transmission unit. The result data includes, but is not limited to, frequency point, sound and SNR or level values.
And step 805, storing and warehousing the result data reported by each black broadcast intelligent monitoring node.
And 806, displaying the result data reported by each black broadcast intelligent monitoring node according to the query conditions of the interface in a track map thermodynamic diagram.
The constant F1 is a threshold value for bin SNR or level determination.
Claims (6)
1. An intelligent black-broadcast monitoring system is arranged in a mobile monitoring vehicle or in a fixed position and is characterized in that,
the system comprises a positioning unit, a black broadcast monitoring unit, a data transmission unit and a computer analysis control unit which are mutually connected;
the positioning unit is a device for generating a positioning signal of the black broadcasting intelligent monitoring system;
the black broadcast monitoring unit comprises an antenna, a black broadcast monitoring module and peripheral components;
the black broadcast monitoring module comprises an FM decoding special chip and peripheral components;
the data transmission unit comprises a communication antenna, a communication chip and peripheral components;
the computer analysis control unit comprises a computer chip, a storage chip and peripheral components;
and the computer analysis control unit acquires the black broadcast frequency point, sound, position, signal-to-noise ratio or level information of the black broadcast monitoring unit from the data transmission unit to analyze and visually display.
2. The intelligent monitoring system for black broadcasting according to claim 1,
a telecommunication communication device is added in the data transmission unit, and the data transmission unit can be accessed to a communication network of a mobile operator; the telecommunication device comprises a telecommunication card and peripheral elements.
3. An intelligent monitoring method for black broadcasting is characterized in that,
the method comprises the following steps:
the background analysis data transmission unit sends a white list and a black list in the black broadcast configuration information to the black broadcast intelligent monitoring node;
step (2), one or more black broadcast intelligent monitoring nodes automatically monitor the whole FM broadcast frequency band, identify FM broadcast signals through waveforms, and screen out broadcast signal frequency points currently being transmitted;
step (3), if the frequency point is not in the white list, the black-broadcast intelligent monitoring node automatically refreshes the black list, records the position provided by the current positioning unit, the frequency point, the sound and the signal-to-noise ratio or the level provided by the black-broadcast monitoring unit, sends the frequency point, the sound and the signal-to-noise ratio or the level provided by the black-broadcast monitoring unit to a background through a data transmission unit, and continuously executes the step (2);
and (4) background analysis is carried out to draw real-time tracks of the intelligent black broadcast monitoring nodes and the thermodynamic diagram of the current frequency point, and if a white list and a black list in the black broadcast configuration information are changed, the step (1) is executed.
Step (5), the background can inquire the variation characteristics of the emission thermodynamic diagram of a certain black broadcast frequency point on a time axis and determine the emission position and the emission rule of the black broadcast frequency point;
the white list refers to an approved frequency point list used by a regular legal user;
the blacklist refers to a broadcast signal frequency point list except a white list, and comprises a frequency point list used by illegal users or unknown users and an unauthorized frequency point list used by normal legal users.
4. The intelligent monitoring method for black broadcasting according to claim 3,
in the step (2), the automatic monitoring is frequency sweep monitoring and fixed frequency monitoring, the frequency sweep monitoring is carried out on the whole FM broadcast frequency band by default, and the fixed frequency monitoring is carried out on the frequency points which need to be continuously concerned;
the frequency sweep monitoring refers to the alternate flow monitoring after dividing channels by fixed stepping and fixed monitoring duration in the whole FM broadcast frequency band;
the fixed frequency monitoring refers to fixed frequency point monitoring on a certain FM broadcast frequency point.
5. The intelligent monitoring method for black broadcasting according to claim 3,
in the step (3), according to the signal-to-noise ratio or the level of the frequency point of the blacklist, when the signal-to-noise ratio or the level exceeds a preset threshold value, the background gives out alarm information to prompt that the black broadcast is in a nearby range.
6. The intelligent monitoring method for black broadcasting according to claim 3,
in the step (4), according to the signal-to-noise ratio or the level of the frequency point, the distance of the broadcast transmission distance can be displayed in a thermodynamic diagram mode.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111917494A (en) * | 2020-08-25 | 2020-11-10 | 成都华乾科技有限公司 | Black broadcast signal monitoring and positioning method and system |
| CN111917499A (en) * | 2020-08-25 | 2020-11-10 | 成都华乾科技有限公司 | Black broadcast signal acquisition method and system |
| CN112312397A (en) * | 2020-09-28 | 2021-02-02 | 深圳市瑞迅通信息技术有限公司 | Signal safety monitoring system and signal safety monitoring method |
| CN112929103A (en) * | 2021-01-26 | 2021-06-08 | 赵炳健 | Illegal broadcasting station detection method and system |
| WO2023012757A1 (en) * | 2021-08-06 | 2023-02-09 | Sony Group Corporation | Measuring atsc 3 rf environment using autonomous vehicle |
| FR3139257A1 (en) * | 2022-08-24 | 2024-03-01 | Ergylink | Device for securing the use of data broadcasting, associated system and method |
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| CN111917494A (en) * | 2020-08-25 | 2020-11-10 | 成都华乾科技有限公司 | Black broadcast signal monitoring and positioning method and system |
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| FR3139257A1 (en) * | 2022-08-24 | 2024-03-01 | Ergylink | Device for securing the use of data broadcasting, associated system and method |
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Application publication date: 20200623 |