CN102710964A - Monitoring device and method capable of avoiding illegal signal attack - Google Patents
Monitoring device and method capable of avoiding illegal signal attack Download PDFInfo
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- CN102710964A CN102710964A CN2012101619289A CN201210161928A CN102710964A CN 102710964 A CN102710964 A CN 102710964A CN 2012101619289 A CN2012101619289 A CN 2012101619289A CN 201210161928 A CN201210161928 A CN 201210161928A CN 102710964 A CN102710964 A CN 102710964A
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Abstract
The invention discloses a monitoring device and a monitoring method capable of avoiding illegal signals attack. A signal parameter acquiring module, a signal analyzing unit and an alarm judging module are additionally arranged on a signal receiving device of an existing satellite digital television. Firstly, signal parameters of satellite signals are acquired from signals of the satellite digital television, then different signal parameters are respectively analyzed and judged to determine whether abnormalities exists, and finally the abnormalities are comprehensively analyzed and judged to determine whether alarming is necessary. Therefore, the satellite digital television can be well protected from being attacked by illegal signals, sending and transmission of normal satellite digital television signals can be well protected, and the aim of meeting radio and television security broadcast standards required by governments at all levels can be achieved.
Description
Technical field
The invention belongs to the radio and television application, relate in particular to a kind of satellite digital TV that prevents and receive monitoring device and method that illegal signals is attacked.
Background technology
Along with popularizing fast of satellite digital TV; People are enjoying clear with simultaneously easily that satellite digital TV brings; Because the easy modulating performance of digital signal; Satellite digital TV is compared the attack that traditional tv receives illegal signals (like Falun Gong etc.) more easily, so the safe transmission of satellite digital program also more and more comes into one's own.
Existing satellite digital TV signal receiving end is that the signal of same frequency parameters is decoded without exception, outputs to CHINA RFTCOM Co Ltd.The lawless person is easy to just can the illegal programs of making be emitted with identical frequency parameter behind the intercepting frequency parameter, causes the satellite TV signal receiving terminal to receive illegal programs and outputs to CHINA RFTCOM Co Ltd.
The safety that be to guarantee TV programme is broadcasted, and General Bureau of Radio, Film and Television issues " radio and television safety broadcast management regulation ", requires CHINA RFTCOM Co Ltd above county level company to be equipped with anti-tampering equipment at signal receiving end, thus the safe transmission and the broadcast of assurance TV programme.Existing anti-tampering equipment generally is that signal is carried out encrypting and decrypting, lacks the real-time monitoring to signal, can't accomplish real time reaction to the attack after lawless person's decryption.
Summary of the invention
To the problems referred to above; First purpose of the present invention is to provide a kind of satellite television receiver that prevents to receive the monitoring device that illegal signals is attacked; Thereby protect normal satellite digital TV signal to send and propagation, satisfy the radio and television safety broadcast standard that governments at all levels require.
To the problems referred to above, second purpose of the present invention is to provide a kind of satellite television receiver that prevents to receive the monitoring method that illegal signals is attacked.
First purpose of the present invention is accomplished through following technical scheme: the monitoring device that a kind of anti-illegal signals is attacked; Comprise satellite-signal input module, signal demodulation module, audio/video decoding module and audio-video signal output module, also comprise signal parameter acquisition module, signal analysis unit, alarm decision module; The satellite-signal input module sends to the signal parameter acquisition module with satellite-signal, and the signal parameter acquisition module obtains the characteristic parameter of this satellite-signal to this satellite-signal analysis; The signal parameter acquisition module sends to signal analysis unit with this characteristic parameter, and signal analysis unit is analyzed characteristic parameter and analysis result is sent to the alarm decision module; The alarm decision module judges whether the needs warning according to analysis result, then outwards send alarm signal if need to report to the police.
Further; Comprise that also colour bar broadcasts signal generator fully; After colour bar is broadcast signal generator fully and is received the alarm signal from the alarm decision module; Send color bar signal or broadcast signal fully to the audio-video signal output module, the audio-video signal output module is with color bar signal or broadcast signal fully and output to cable network with audio-video signal.Increase color bar signal or broadcast signal fully and carry out warning reminding, it is more directly perceived to carry out the such traditional means of alarm sound or bright alarm lamp merely than alarm decision module, convenient unified the management.
Further, said signal analysis unit comprises the signal strength analysis unit, and whether the intensity that is used for the analytic signal parameter is unusual.Through the various signals parameter is carried out analysis and judgement, help improving judging nicety rate.
Further, said signal analysis unit comprises the carrier-to-noise ratio analytic unit, and whether the carrier-to-noise ratio that is used for the analytic signal parameter is unusual.Through the various signals parameter is carried out analysis and judgement, help improving judging nicety rate.
Further, said signal analysis unit comprises the noise figure analytic unit, and whether the noise figure that is used for the analytic signal parameter is unusual.Through the various signals parameter is carried out analysis and judgement, help improving judging nicety rate.
Further, said signal analysis unit comprises the error rate analyzer unit, and whether the error rate that is used for the analytic signal parameter is unusual.Through the various signals parameter is carried out analysis and judgement, help improving judging nicety rate.
Further, said signal analysis unit comprises the semaphore lock analytic unit, and whether the lock-out state that is used for analytic signal is unusual.Through the various signals parameter is carried out analysis and judgement, help improving judging nicety rate.
Second purpose of the present invention accomplished through following technical scheme: the monitoring method that a kind of anti-illegal signals is attacked may further comprise the steps:
S1: satellite-signal is analyzed, obtained each item signal parameter of this satellite-signal;
S2: signal parameter is analyzed, judged whether to exist unusual;
S3:, judge whether to need to report to the police to handle according to preset condition according to the abnormal conditions of analysis result.
Further, in step S3 if need to report to the police handle, then with color bar signal or broadcast signal fully and outwards export with the audio-video signal of satellite digital TV.Increase color bar signal or broadcast signal fully and carry out warning reminding, it is more directly perceived to carry out the such traditional means of alarm sound or bright alarm lamp merely than alarm decision module, convenient unified the management.
Further, among the step S2 signal parameter is analyzed, comprised analysis signal strength signal intensity, carrier-to-noise ratio, noise figure, the error rate and semaphore lock state.Through the various signals parameter is carried out analysis and judgement, help improving judging nicety rate.
Beneficial effect of the present invention is: the present invention is through increasing signal parameter acquisition module, signal analysis unit, alarm decision module on existing satellite digital TV signal receiver; At first from this satellite digital TV signal, obtain the signal parameter of this satellite-signal; Whether whether then the various signals parameter is carried out analysis and judgement respectively and exist unusually, at last these abnormal conditions being carried out comprehensive analysis and judgement needs to report to the police; So can well play preventing that satellite digital TV from receiving the attack of illegal signals, send and propagate thereby reach the normal satellite digital TV signal of protection, the radio and television safety that satisfies governments at all levels' requirement is broadcasted the purpose of standard.
Description of drawings
Fig. 1 is the monitoring device sketch map that the anti-illegal signals of the specific embodiment of the invention is attacked;
Fig. 2 is the monitoring method sketch map that the anti-illegal signals of the specific embodiment of the invention is attacked.
Embodiment
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.The description to alternative features is to being equal to the description of technical characterictic, must not being regarded as the donation to the public in this specification simultaneously.
Term in this specification like no specified otherwise, all is defined as the peculiar implication in this area if having the peculiar implication of general sense and this area simultaneously.
As shown in Figure 1, be the monitoring device sketch map of the anti-illegal signals attack of the specific embodiment of the invention.The monitoring device that anti-illegal signals of the present invention is attacked is by existing satellite digital TV receiving system; The satellite-signal input module that promptly is connected successively, signal demodulation module, audio/video decoding module and audio-video signal output module; And monitoring system; The signal parameter acquisition module that promptly is connected successively, signal analysis unit, alarm decision module, form.
The course of work of existing satellite digital TV receiving system is: at first be that the satellite-signal input module that antenna and auxiliary device are formed receives satellite-signal; Because satellite-signal is carrier wave to be modulated obtain, and carries out demodulation so this satellite-signal need send to the signal demodulation module; Digital signal after the demodulation can't be play-overed, and need it be decoded as audio-video signal, decodes so this digital signal is sent to the audio/video decoding module; The audio-video signal that at last decoding is obtained is externally exported through the audio-video signal output module.
The received satellite-signal of satellite digital TV receiving system possibly receive environmental interference such as cloud layer, wet weather in daily normal work; Its signal power, noise etc. have unsteady; But the satellite-signal under these ambient conditions always floats within the specific limits, has statistical law to look into.And when satellite TV's receiving system receives the illegal signals attack; Because illegal signals is the signal that gives off of certain position, ground often, so the satellite-signal that receives of satellite TV's receiving system always shows on multiple parameters such as intensity or noise and very big unusual of daily statistical law.Based on this principle, the present invention increases the special satellite-signal that is directed against and carries out device for monitoring unusually on the basis of existing satellite digital TV receiving system.At first satellite-signal is detected, calculate each item signal parameter, comprise signal strength signal intensity, carrier-to-noise ratio, noise figure, the error rate and semaphore lock situation through the signal parameter acquisition module.Then, judge see whether this parameter occurs unusually to the daily statistical law of each concrete parameter combination through signal analysis unit, whether unusual such as the threshold limit value and the hop value of signal strength signal intensity; Whether carrier-to-noise ratio threshold limit value and hop value be unusual; Whether the noise figure hop value is unusual; Whether error rate threshold limit value is unusual; Whether signal losing lock etc.If unusual, then abnormal conditions are reported the alarm decision module.After the alarm decision module receives the report of these abnormal conditions; Can report to the police unusually according to each; Also can comprehensive multinomial abnormal conditions report to the police; Such as signal strength signal intensity is unusual, the error rate unusual and the signal losing lock if occur simultaneously, then externally to report to the police, warning can be buzzing alarm sound or red LED optical flare.So realize monitoring to the illegal signals attack.
Preferred embodiment according to the present invention: after the alarm decision module, increase colour bar and broadcast signal generator fully; After colour bar is broadcast signal generator fully and is received the alarm signal from the alarm decision module; Send color bar signal or broadcast signal fully to the audio-video signal output module, the audio-video signal output module is with color bar signal or broadcast signal fully and output to cable network with audio-video signal.Increase color bar signal or broadcast signal fully and carry out warning reminding, it is more directly perceived to carry out the such traditional means of alarm sound or bright alarm lamp merely than alarm decision module, convenient unified the management.
Monitoring method as shown in Figure 2, as to attack for the anti-illegal signals of the specific embodiment of the invention.May further comprise the steps:
S1: satellite-signal is analyzed, obtained each item signal parameter of this satellite-signal; Particularly; After promptly using signal parameter acquisition module in the monitoring device from the satellite-signal input module, to obtain satellite-signal; Satellite-signal is detected, calculate each item signal parameter, such as signal strength signal intensity, carrier-to-noise ratio, noise figure, the error rate and semaphore lock state.
S2: signal parameter is analyzed, judged whether to exist unusual; This step analytic process combines daily statistical law to judge unusually to parameters respectively as describing in the monitoring device, has comprised the analysis to signal strength signal intensity, carrier-to-noise ratio, noise figure, the error rate and semaphore lock state.
S3:, judge whether to need to report to the police to handle according to preset condition according to the abnormal conditions of analysis result.
Preferred embodiment according to the present invention, in step S3 if need to report to the police handle, then with color bar signal or broadcast signal fully and outwards export with the audio-video signal of satellite digital TV.Increase color bar signal or broadcast signal fully and carry out warning reminding, it is more directly perceived to carry out the such traditional means of alarm sound or bright alarm lamp merely than alarm decision module, convenient unified the management.
Claims (10)
1. the monitoring device that anti-illegal signals is attacked comprises satellite-signal input module, signal demodulation module, audio/video decoding module and audio-video signal output module, it is characterized in that:
Also comprise signal parameter acquisition module, signal analysis unit, alarm decision module; The satellite-signal input module sends to the signal parameter acquisition module with satellite-signal, and the signal parameter acquisition module obtains the characteristic parameter of this satellite-signal to this satellite-signal analysis; The signal parameter acquisition module sends to signal analysis unit with this characteristic parameter, and signal analysis unit is analyzed characteristic parameter and analysis result is sent to the alarm decision module; The alarm decision module judges whether the needs warning according to analysis result, then outwards send alarm signal if need to report to the police.
2. the monitoring device of attacking according to the said anti-illegal signals of claim 1 is characterized in that:
Comprise that also colour bar broadcasts signal generator fully; After colour bar is broadcast signal generator fully and is received the alarm signal from the alarm decision module; Send color bar signal or broadcast signal fully to the audio-video signal output module, the audio-video signal output module is with color bar signal or broadcast signal fully and output to cable network with audio-video signal.
3. the monitoring device of attacking according to the said anti-illegal signals of claim 1 is characterized in that:
Said signal analysis unit comprises the signal strength analysis unit, and whether the intensity that is used for the analytic signal parameter is unusual.
4. the monitoring device of attacking according to the said anti-illegal signals of claim 1 is characterized in that:
Said signal analysis unit comprises the carrier-to-noise ratio analytic unit, and whether the carrier-to-noise ratio that is used for the analytic signal parameter is unusual.
5. the monitoring device of attacking according to the said anti-illegal signals of claim 1 is characterized in that:
Said signal analysis unit comprises the noise figure analytic unit, and whether the noise figure that is used for the analytic signal parameter is unusual.
6. the monitoring device of attacking according to the said anti-illegal signals of claim 1 is characterized in that:
Said signal analysis unit comprises the error rate analyzer unit, and whether the error rate that is used for the analytic signal parameter is unusual.
7. the monitoring device of attacking according to the said anti-illegal signals of claim 1 is characterized in that:
Said signal analysis unit comprises the semaphore lock analytic unit, and whether the lock-out state that is used for analytic signal is unusual.
8. the monitoring method that anti-illegal signals is attacked is characterized in that, may further comprise the steps:
S1: satellite-signal is analyzed, obtained each item signal parameter of this satellite-signal;
S2: signal parameter is analyzed, judged whether to exist unusual;
S3:, judge whether to need to report to the police to handle according to preset condition according to the abnormal conditions of analysis result.
9. according to Claim 8 the anti-illegal signals monitoring method of attacking is characterized in that, and is further comprising the steps of:
In step S3 if need to report to the police handle, then with color bar signal or broadcast signal fully and outwards export with the audio-video signal of satellite digital TV.
10. according to Claim 8 the anti-illegal signals monitoring method of attacking is characterized in that:
Among the step S2 signal parameter is analyzed, comprised analysis signal strength signal intensity, carrier-to-noise ratio, noise figure, the error rate and semaphore lock state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012101619289A CN102710964A (en) | 2012-05-23 | 2012-05-23 | Monitoring device and method capable of avoiding illegal signal attack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101619289A CN102710964A (en) | 2012-05-23 | 2012-05-23 | Monitoring device and method capable of avoiding illegal signal attack |
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| CN102710964A true CN102710964A (en) | 2012-10-03 |
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| CN2012101619289A Pending CN102710964A (en) | 2012-05-23 | 2012-05-23 | Monitoring device and method capable of avoiding illegal signal attack |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104703215A (en) * | 2015-03-27 | 2015-06-10 | 佛山络思讯环保科技有限公司 | Method and system for diagnosing indoor signal strength abnormality |
| CN105549034A (en) * | 2015-12-07 | 2016-05-04 | 北京奇虎科技有限公司 | Method and device for detecting GPS attack |
| CN106712865A (en) * | 2016-12-15 | 2017-05-24 | 中国电子科技集团公司第二十研究所 | Apparatus used for inter-station satellite communication link self-detection and method thereof |
| CN109005450A (en) * | 2018-07-16 | 2018-12-14 | 广州辉群智能科技有限公司 | A kind of broadcast controlling method and device of broadcasting equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62183289A (en) * | 1986-02-07 | 1987-08-11 | Matsushita Electric Ind Co Ltd | Monitor device |
| CN2588702Y (en) * | 2002-12-27 | 2003-11-26 | 北京华通为尔广视科技有限公司 | Terminal monitoring controller |
| CN1612498A (en) * | 2003-10-28 | 2005-05-04 | 福州创频科技有限公司 | Receiving monitoring device for satellite broadcasting system |
| KR20050096995A (en) * | 2004-03-30 | 2005-10-07 | 이규백 | System and method for parking violation control using internet |
| CN101083776A (en) * | 2007-06-12 | 2007-12-05 | 福建省广播影视集团 | Method and apparatus for monitoring operation status of broadcast television satellite transmission system |
-
2012
- 2012-05-23 CN CN2012101619289A patent/CN102710964A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62183289A (en) * | 1986-02-07 | 1987-08-11 | Matsushita Electric Ind Co Ltd | Monitor device |
| CN2588702Y (en) * | 2002-12-27 | 2003-11-26 | 北京华通为尔广视科技有限公司 | Terminal monitoring controller |
| CN1612498A (en) * | 2003-10-28 | 2005-05-04 | 福州创频科技有限公司 | Receiving monitoring device for satellite broadcasting system |
| KR20050096995A (en) * | 2004-03-30 | 2005-10-07 | 이규백 | System and method for parking violation control using internet |
| CN101083776A (en) * | 2007-06-12 | 2007-12-05 | 福建省广播影视集团 | Method and apparatus for monitoring operation status of broadcast television satellite transmission system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104703215A (en) * | 2015-03-27 | 2015-06-10 | 佛山络思讯环保科技有限公司 | Method and system for diagnosing indoor signal strength abnormality |
| CN104703215B (en) * | 2015-03-27 | 2018-03-27 | 佛山市络研科技有限公司 | A kind of indoor signal strength abnormality diagnostic method and system |
| CN105549034A (en) * | 2015-12-07 | 2016-05-04 | 北京奇虎科技有限公司 | Method and device for detecting GPS attack |
| CN106712865A (en) * | 2016-12-15 | 2017-05-24 | 中国电子科技集团公司第二十研究所 | Apparatus used for inter-station satellite communication link self-detection and method thereof |
| CN109005450A (en) * | 2018-07-16 | 2018-12-14 | 广州辉群智能科技有限公司 | A kind of broadcast controlling method and device of broadcasting equipment |
| CN109005450B (en) * | 2018-07-16 | 2021-05-18 | 广州辉群智能科技有限公司 | Broadcast control method and device of broadcast equipment |
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Address after: West high tech Zone Fucheng Road in Chengdu city of Sichuan province 610041 No. 399 Tianfu New Valley No. 6 Building 4 layer Applicant after: Chengdu Doyen Information Media Co., Ltd. Address before: West high tech Zone Fucheng Road in Chengdu city of Sichuan province 610041 No. 399 Tianfu New Valley No. 6 Building 4 layer Applicant before: Chengdu Doyen Information Technology Co., Ltd. |
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Application publication date: 20121003 |