CN203951480U - Network illegal FM radio station monitoring system - Google Patents
Network illegal FM radio station monitoring system Download PDFInfo
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- CN203951480U CN203951480U CN201420402313.5U CN201420402313U CN203951480U CN 203951480 U CN203951480 U CN 203951480U CN 201420402313 U CN201420402313 U CN 201420402313U CN 203951480 U CN203951480 U CN 203951480U
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Abstract
The utility model relates to a kind of network illegal FM radio station monitoring system.Belong to the communications field.This system mainly comprises a plurality of terminals and server; All emission spectrums in terminal part monitoring FM frequency range; When occur not checking and approving or put on record emission spectrum time, by this channel labelling, by frequency and current signal strength signal intensity, the information such as time tag are reported to server.Server is received after this information, analyzes the result of the nearly a plurality of monitoring terminals of neck, when having a plurality of terminals to have the information of reporting same frequency, leads the varying strength of nearly terminal according to each, roughly locates transmitting site and the coverage of this frequency.The demodulation function of the terminal that start signal intensity is larger simultaneously, carries out record to the audio frequency of pirate radio, convenient investigation and evidence collection and post-processed.For drift station, can by the information to each terminal, analyze in time at server end, combining geographic information system marks the action path of monitored launch point on electronic chart.And can be by path playback.
Description
Technical field
The utility model relates to a kind of network illegal FM radio station monitoring system.Belong to the communications field.
Background technology
Pirate radio problem is long-standing, various counterfeit drug advertisements, and unreal publicity, seriously upsets audibility and market order.Especially some counterfeit drug advertisements, serious harm the elderly interests, make originally to convey knowledge, and the radio broadcasting of benefiting the nation and the people has become the swindle instrument of lawless person and bad businessman.State's laws are ignored in some radio station, use high power broadcast equipment, the serious dry wireless frequency spectrum of scratching, What is more uses the wireless device of piecing together, and emission spectrum exceeds normal range (NR), has had influence on the special-purpose frequency range of flight, dry pilot and the ground communication of scratching, becomes potential killer.Frequency spectrum research institutions at different levels of country and radio control department start the special project system reason action of pirate radio one after another, for purifying wireless environment, have played obvious effect.In the past in, barbaric pirate radio is laid in a coffin to some extent.From high-power fixed point in the past, cover greatly, become small-power, liquidation transmitting.Add that part pirate radio, from being all illegal contents, becomes the recording by normal program, add the mode of part illegal contents, make ordinary people be difficult to tell true and false.
Current, because pirate radio adopts small-power, the mode of liquidation, has increased the difficulty of spectrum monitoring.Current equipment mostly is high accuracy, the fixed point of high value or mobile unit.After pirate radio power reduction, although still can locate Position Approximate by pointing device, because power is little, its antenna structure also diminishes, and is not easy to determine transmitting site.For more difficult location, radio station decentralized and liquidation transmitting.
Summary of the invention
the purpose of this utility model is:in the face of existing in background technology the large problem of pirate radio monitoring difficulty, the present invention proposes a kind of network illegal FM radio station monitoring system, to realize small-power, decentralized, the monitoring in the little radio station of liquidation.
the technical solution of the utility model is:network illegal FM radio station monitoring system, mainly comprises a plurality of terminals and server; System principle and the course of work are as follows; All emission spectrums in terminal part monitoring FM frequency range; When occur not checking and approving or put on record emission spectrum time, by this channel labelling, by frequency and current signal strength signal intensity, the information such as time tag are reported to server.Server is received after this information, analyzes the result of the nearly a plurality of monitoring terminals of neck, when having a plurality of terminals to have the information of reporting same frequency, leads the varying strength of nearly terminal according to each, large to transmitting site and the coverage of locating this frequency.The demodulation function of the terminal that start signal intensity is larger simultaneously, carries out record to the audio frequency of pirate radio, convenient investigation and evidence collection and post-processed.For drift station, can analyze in time by the information to each terminal, combining geographic information system marks the action path of monitored launch point on electronic chart.And can be by path playback.
Described terminal part mainly comprises: radio frequency and demodulation part, and control section, audio treatment part divides, communications portion, power unit, antenna part.
Described radio frequency part consists of radio-frequency transmitter (FM receiver), receives the digital controlled signal from control section, completes signal strength signal intensity scanning and voice demodulation function to FM frequency range; Radio frequency part is often in frequency scanning state, when finding that there is when setting the signal of thresholding, list of frequency information fed back to control section; Control section contrasts according to known legal list of frequency, finds, after illegal frequency, radio-frequency transmitter to be set to illegal frequency, and the signal strength signal intensity of this frequency is gathered and issues server by communications portion; While needing audio-frequency information, by control section, send instruction, assigned frequency is carried out to demodulation, and audio-frequency information is issued to audio-frequency unit and process.
Described control section mainly comprises monolithic controller MCU, for the control to other parts; Control information, except the control program from self, also comes from the instruction that server is sent by communications portion, as the MCU of server, and memory, the parts such as real-time clock RTC.
Described audio-frequency unit is realized distribution function and the local storage function of voice-grade channel, the audio frequency that local storage function demodulates is on the one hand sampled by the AD in the MCU of control section, digital information is deposited to local storage, on the other hand audio signal is sent to server by communication module, by service end, stored.
Described power unit provides power supply supply for terminal part, from the multiple supply of electric power mode that can obtain, according to installation environment need, have in the various ways such as 220 volts of civil powers (street lamp), solar cell, local storage battery and obtain terminal required voltage and current source.
Described communications portion is responsible between control section and server, transmitting various control informations and data, and Instant audio messages; In control and data information transfer, use short message (SMS) and grouped data (GPRS), Real-Time Voice Transmission adopts GSM voice service passage; In use, take grouped data as main, and note and voice are auxiliary mode, complete the information transmission between terminal and server.
Described antenna part receives the signal of telecommunication of aerial FM frequency range; Comprise low noise amplification, gain-adjusted, filtering and reception antenna, antenna servo system; Low noise amplification wherein, gain-adjusted and antenna servo mechanism are all controlled the control of part, complete the variable gain of wireless signal is amplified and the selection function of main signal direction; By adjusting, gain and obtain the roughly power of illegal launch point and apart from the distance of this terminal; By adjusting antenna servo mechanism, change the main receive direction of antenna, judge the relative direction of illegal transmitting station and this terminal; Every day use omnidirectional antenna, uses the directional antenna on servomechanism while needing more data.
Described server section obtains and the data channel of terminal by GPRS network, collects the reported data of each terminal, analyzes data, and the corresponding terminal of tracking data content-control positions operation, to obtain more data, judges the positional information of illegal transmitting station.The information exchange of each terminal is crossed to GIS map system and show, the pirate radio of different frequency and possible position is identified out to facilitate decision-making and data record; As alternate channel, server end has a communication module hardware with note and phonetic function, and this module is also the passage of server record terminal Instant audio messages.
the beneficial effects of the utility model are:the present invention is directed to pirate radio small-power, decentralized, the feature of liquidation, new network, distributed special-purpose pirate radio monitoring tool arises at the historic moment.This kind of equipment volume is small and exquisite, and flexible arrangement is exclusively used in FM broadcast band, and price is low, easily installs, and has the background system of networking, the fixing or mobile wireless transmitting target in sustainable dynamically monitored area.Coordinate the backstage with generalized information system, can locate in real time a plurality of transmitting targets, and can judge the mobile route of moving target.
accompanying drawing explanation:
Fig. 1 is terminal part system block diagram in embodiment;
Fig. 2 is server end block diagram in embodiment.
specific embodiment:
In the present embodiment, network illegal FM radio station monitoring system, mainly comprises terminal and server two parts;
Described terminal part mainly comprises: radio frequency and demodulation part, and control section, audio treatment part divides, communications portion, power unit, antenna part; The antenna servo mechanism of antenna part in the present embodiment, has been used driving chip DRV8825, electronic compass chip H5883; Communications portion is used GPRS/GSM communication module SIM900A; SI4702 chip is used in radio frequency and demodulation part; Control section is used STM32F103R8 chip.
Described radio frequency part consists of radio-frequency transmitter (FM receiver), receives the digital controlled signal from control section, completes signal strength signal intensity scanning and voice demodulation function to FM frequency range; Radio frequency part is often in frequency scanning state, when finding that there is when setting the signal of thresholding, list of frequency information fed back to control section; Control section contrasts according to known legal list of frequency, finds, after illegal frequency, radio-frequency transmitter to be set to illegal frequency, and the signal strength signal intensity of this frequency is gathered and issues server by communications portion; While needing audio-frequency information, by control section, send instruction, assigned frequency is carried out to demodulation, and audio-frequency information is issued to audio-frequency unit and process.
Described control section mainly comprises monolithic controller MCU, for the control to other parts; Control information, except the control program from self, also comes from the instruction that server is sent by communications portion, as the MCU of server, and memory, the parts such as real-time clock RTC.
Described audio-frequency unit is realized distribution function and the local storage function of voice-grade channel, the audio frequency that local storage function demodulates is on the one hand sampled by the AD in the MCU of control section, digital information is deposited to local storage, on the other hand audio signal is sent to server by communication module, by service end, stored.
Described power unit provides power supply supply for terminal part, from the multiple supply of electric power mode that can obtain, according to installation environment need, have in the various ways such as 220 volts of civil powers (street lamp), solar cell, local storage battery and obtain terminal required voltage and current source.
Described communications portion is responsible between control section and server, transmitting various control informations and data, and Instant audio messages; In control and data information transfer, use short message (SMS) and grouped data (GPRS), Real-Time Voice Transmission adopts GSM voice service passage; In use, take grouped data as main, and note and voice are auxiliary mode, complete the information transmission between terminal and server.
Described antenna part receives the signal of telecommunication of aerial FM frequency range; Comprise low noise amplification, gain-adjusted, filtering and reception antenna, antenna servo system; Low noise amplification wherein, gain-adjusted and antenna servo mechanism are all controlled the control of part, complete the variable gain of wireless signal is amplified and the selection function of main signal direction; By adjusting, gain and obtain the roughly power of illegal launch point and apart from the distance of this terminal; By adjusting antenna servo mechanism, change the main receive direction of antenna, judge the relative direction of illegal transmitting station and this terminal; Every day use omnidirectional antenna, uses the directional antenna on servomechanism while needing more data.
Described server section obtains and the data channel of terminal by GPRS network, collects the reported data of each terminal, analyzes data, and the corresponding terminal of tracking data content-control positions operation, to obtain more data, judges the positional information of illegal transmitting station.The information exchange of each terminal is crossed to GIS map system and show, the pirate radio of different frequency and possible position is identified out to facilitate decision-making and data record; As alternate channel, server end has a communication module hardware with note and phonetic function, and this module is also the passage of server record terminal Instant audio messages.
Claims (6)
1. network illegal FM radio station monitoring system, is characterized in that: mainly comprise a plurality of terminals and server; Described terminal part mainly comprises: radio frequency and demodulation part, and control section, audio treatment part divides, communications portion, power unit, antenna part;
Described radio frequency part consists of radio-frequency transmitter, receives the digital controlled signal from control section, completes signal strength signal intensity scanning and voice demodulation function to FM frequency range; Radio frequency part is often in frequency scanning state, when finding that there is when setting the signal of thresholding, list of frequency information fed back to control section; Control section contrasts according to known legal list of frequency, finds, after illegal frequency, radio-frequency transmitter to be set to illegal frequency, and the signal strength signal intensity of this frequency is gathered and issues server by communications portion; While needing audio-frequency information, by control section, send instruction, assigned frequency is carried out to demodulation, and audio-frequency information is issued to audio-frequency unit and process;
Described server section obtains and the data channel of terminal by GPRS network, collects the reported data of each terminal, analyzes data, and the corresponding terminal of tracking data content-control positions operation, to obtain more data, judges the positional information of illegal transmitting station; The information exchange of each terminal is crossed to GIS map system and show, the pirate radio of different frequency and possible position is identified out to facilitate decision-making and data record; As alternate channel, server end has a communication module hardware with note and phonetic function, and this module is also the passage of server record terminal Instant audio messages.
2. network illegal FM as claimed in claim 1 radio station monitoring system, is characterized in that: described control section mainly comprises monolithic controller MCU, for the control to other parts; Control information, except the control program from self, also comes from the instruction that server is sent by communications portion.
3. network illegal FM as claimed in claim 1 radio station monitoring system, it is characterized in that: described audio-frequency unit is realized distribution function and the local storage function of voice-grade channel, the audio frequency that local storage function demodulates is on the one hand sampled by the AD in the MCU of control section, digital information is deposited to local storage, on the other hand audio signal is sent to server by communication module, by service end, stored.
4. network illegal FM as claimed in claim 1 radio station monitoring system, it is characterized in that: described power unit, for terminal part provides power supply supply, obtains terminal required voltage and current source in either type from 220 civil powers, solar cell or local storage battery.
5. network illegal FM as claimed in claim 1 radio station monitoring system, is characterized in that: described communications portion is responsible between control section and server, transmitting various control informations and data, and Instant audio messages; In control and data information transfer, use short message (SMS) and grouped data (GPRS), Real-Time Voice Transmission adopts GSM voice service passage; In use, take grouped data as main, and note and voice are auxiliary mode, complete the information transmission between terminal and server.
6. network illegal FM as claimed in claim 1 radio station monitoring system, is characterized in that: described antenna part receives the signal of telecommunication of aerial FM frequency range; Comprise low noise amplification, gain-adjusted, filtering and reception antenna, antenna servo system; Low noise amplification wherein, gain-adjusted and antenna servo mechanism are all controlled the control of part, complete the variable gain of wireless signal is amplified and the selection function of main signal direction; By adjusting, gain and obtain the roughly power of illegal launch point and apart from the distance of this terminal; By adjusting antenna servo mechanism, change the main receive direction of antenna, judge the relative direction of illegal transmitting station and this terminal; Every day use omnidirectional antenna, uses the directional antenna on servomechanism while needing more data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402313.5U CN203951480U (en) | 2014-07-21 | 2014-07-21 | Network illegal FM radio station monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402313.5U CN203951480U (en) | 2014-07-21 | 2014-07-21 | Network illegal FM radio station monitoring system |
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| CN203951480U true CN203951480U (en) | 2014-11-19 |
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| CN201420402313.5U Expired - Fee Related CN203951480U (en) | 2014-07-21 | 2014-07-21 | Network illegal FM radio station monitoring system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104486008A (en) * | 2014-12-10 | 2015-04-01 | 成都中星世通电子科技有限公司 | Radio-frequency measurement type radio monitoring device |
| CN105554703A (en) * | 2015-12-16 | 2016-05-04 | 山东大学 | Network convergence processing device using electronic map for searching illegal radio station locations and working method thereof |
| CN105577303A (en) * | 2015-12-16 | 2016-05-11 | 山东大学 | Illegal frequency space-time discrimination apparatus and method |
| CN105721090A (en) * | 2016-02-19 | 2016-06-29 | 成都大公博创信息技术有限公司 | Detection and recognition method for illegal FM broadcasting station |
| CN106301621A (en) * | 2016-08-31 | 2017-01-04 | 成都九华圆通科技发展有限公司 | A kind of method using K line chart to find wireless station and analysis air interference |
| CN107154828A (en) * | 2017-06-01 | 2017-09-12 | 中云沃达（山东）物联网科技有限公司 | The methods of investigation and device in pseudo- radio station |
| CN107290712A (en) * | 2016-03-31 | 2017-10-24 | 北京中密安信息安全技术有限公司 | Secret and safe checks monitoring car |
| CN109314540A (en) * | 2016-06-13 | 2019-02-05 | 吉森有限公司 | The detection method of broadband illegal wireless signal |
| CN109932677A (en) * | 2019-04-08 | 2019-06-25 | 南京航空航天大学 | Black broadcast localization method based on unmanned plane and cloud generalized information system |
| CN112291809A (en) * | 2020-10-21 | 2021-01-29 | 青岛恒天翼信息科技有限公司 | Method for realizing frequency monitoring system |
-
2014
- 2014-07-21 CN CN201420402313.5U patent/CN203951480U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104486008A (en) * | 2014-12-10 | 2015-04-01 | 成都中星世通电子科技有限公司 | Radio-frequency measurement type radio monitoring device |
| CN105554703A (en) * | 2015-12-16 | 2016-05-04 | 山东大学 | Network convergence processing device using electronic map for searching illegal radio station locations and working method thereof |
| CN105577303A (en) * | 2015-12-16 | 2016-05-11 | 山东大学 | Illegal frequency space-time discrimination apparatus and method |
| CN105577303B (en) * | 2015-12-16 | 2018-10-23 | 山东大学 | A kind of apparatus and method that illegal frequency space-time is screened |
| CN105554703B (en) * | 2015-12-16 | 2019-02-01 | 山东大学 | A kind of network integration processing unit and its working method for finding pirate radio position using electronic map |
| CN105721090A (en) * | 2016-02-19 | 2016-06-29 | 成都大公博创信息技术有限公司 | Detection and recognition method for illegal FM broadcasting station |
| CN105721090B (en) * | 2016-02-19 | 2018-08-03 | 成都大公博创信息技术有限公司 | A kind of detection and recognition methods of illegal f-m broadcast station |
| CN107290712A (en) * | 2016-03-31 | 2017-10-24 | 北京中密安信息安全技术有限公司 | Secret and safe checks monitoring car |
| CN109314540A (en) * | 2016-06-13 | 2019-02-05 | 吉森有限公司 | The detection method of broadband illegal wireless signal |
| CN109314540B (en) * | 2016-06-13 | 2020-10-27 | 吉森有限公司 | Detection method of broadband illegal wireless signal |
| CN106301621A (en) * | 2016-08-31 | 2017-01-04 | 成都九华圆通科技发展有限公司 | A kind of method using K line chart to find wireless station and analysis air interference |
| CN107154828B (en) * | 2017-06-01 | 2019-07-12 | 中云沃达（山东）物联网科技有限公司 | The methods of investigation and device in pseudo- radio station |
| CN107154828A (en) * | 2017-06-01 | 2017-09-12 | 中云沃达（山东）物联网科技有限公司 | The methods of investigation and device in pseudo- radio station |
| CN109932677A (en) * | 2019-04-08 | 2019-06-25 | 南京航空航天大学 | Black broadcast localization method based on unmanned plane and cloud generalized information system |
| CN112291809A (en) * | 2020-10-21 | 2021-01-29 | 青岛恒天翼信息科技有限公司 | Method for realizing frequency monitoring system |
| CN112291809B (en) * | 2020-10-21 | 2022-07-19 | 青岛恒天翼信息科技有限公司 | Method for realizing frequency monitoring system |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20160721 |