CN104093017A - Method for monitoring three-channel signals through comparison - Google Patents
Method for monitoring three-channel signals through comparison Download PDFInfo
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Abstract
The invention relates to a method for monitoring three-channel signals through comparison. The method includes the following steps: black field recognition, static frame recognition, silence recognition, mosaic recognition and staying recognition are carried out on each channel of signals; the image comparison is carried out on every two of the three channels of signals to find whether two of the three channels of signals are the same or not; alarms and the comparison of the channels of signals are combined, and if the alarms exist, and the comparison is coincident, the alarms are considered as false alarms and filtered out; if the comparison is not coincident, a conclusion is drawn by referring to the specific alarms; the longitudinal comparison is carried out on prior-later-stage signals of a device, and if the comparison is coincident, it is regarded that the device is normal; if the comparison is not coincident, it is regarded that the device breaks down. The method has the advantages that the false and wrong alarms in video signal monitoring are effectively filtered out, the manually-added alarms and the alarms caused by faults of a playing link are distinguished, the safety of a monitoring system is accordingly improved, the complex degree of manual thinking is finally reduced, and the accuracy and the efficiency are improved.
Description
Technical field
The present invention relates to broadcast television signal monitoring field, specifically, is a kind of method that realizes three road signal monitorings by contrast.
Background technology
In prior art, mainly there are the following problems in TV programme monitoring:
1. the needs of program, cause the scene of a small amount of program identical with the phenomenon of fault, thereby take a decision as to whether fault in being difficult at the appointed time.Take that " black ", " quiet frame ", " noiseless " three major types that TV station mainly pays close attention to report to the police be example, and Ru Heichang had been likely both that signal interruption, equipment fault cause, and was likely also program scene (as displaying The darkest hour is nearest the dawn.); Quiet frame had been likely equally both (as only shown last frame after shutting down) that equipment fault causes, and was likely also program scene; Noiseless itself just have pause because behaving to speak, thereby in the short time, do not have audio signal unavoidable.
2. partial fault is reported to the police and to be difficult to identification, as mosaic, tie rod phenomenon, adopts the analysis to signal, due to phenomenon identification difficulty, thereby current technology or speed too slow, cannot be satisfied with the requirement of broadcasting, or because algorithm specific aim be not by force false too much.
3. cannot judge the anomaly causing because of equipment fault.The faults such as Hei Chang as above, quiet frame, noiseless, mosaic, tie rod are all because equipment fault causes.In theory, when there is above-mentioned fault, equipment occurs abnormal time just, at this moment, even read by equipment, also differs and obtains in time surely out of order accurate information.In addition, equipment component is when breaking down, and just the image of output has produced deformation, signal attenuation, just makes the judgement of fault more complicated.
Analyze above-mentioned each problem, all deficiencies are all because traditional analysis is all to analyze for single signal, and Yi Ge TV station in fact, most time devices, signal are all normal, the fault of equipment, signal belongs to " probability event ".According to this principle, completely independently in two paths of signals, at one time in section, the probability that same fault occurs is simultaneously " small probability event " especially.
Chinese patent literature CN103167221A, February 6 2013 applying date, patent name is a kind ofly by quality monitoring, to compare to guarantee to broadcast safe changing method, disclose a kind of to video and audio dominant frequency input signal in broadcast system, video and audio is carried out video and audio supervision quality for input signal, according to comparison result, switch, thereby guarantee to broadcast safe changing method.But about introducing the contrast between same signal, and different according to the image between two signals or many signals, effectively filter wherein false, mistake composition, revise wherein bad state, make that integral body is tending towards the most rationally, the state of the safest, hommization, the final complexity that reduces artificial thinking, improves a kind of method that realizes three road signal monitorings by contrast of accuracy and efficiency and yet there are no report.
Summary of the invention
The object of the invention is for deficiency of the prior art, a kind of method that realizes three road signal monitorings by contrast is provided, introduce the contrast between same signal, and according to the image between two signals or many signals, audio frequency difference, find fast fault, distinguish fault, reduce algorithm complexity, thereby raise the efficiency.
For achieving the above object, the technical scheme that the present invention takes is:
A method that realizes multiple signals monitoring by method, the method for described monitoring comprises the following steps:
Step a, link is independent, the identical and synchronous San road signal of content, input 1, input 2, input 3, carry out respectively signal monitoring, and described three road signal single channel realize Hei Chang, quiet frame, noiseless, mosaic, tie rod identification;
Step b, is carrying out when Hei Chang, quiet frame, noiseless, mosaic, tie rod detect, carrying out contrast between two between described three road signals to each road signal in " step a ";
Step c1, occurs that Hei Chang, quiet frame, noiseless, mosaic, tie rod report to the police if three road signals are current, and between the signal of Dan San road, comparing result is consistent between two, inputs that 1 is normal, input 2 is normal, input 3 is normal, ignores above-mentioned warning, and this is reported to the police as false-alarm;
Or step c2, if reported to the police when Hei Chang, quiet frame, noiseless, mosaic, tie rod appear in first three road signal, between the signal of Dan San road, comparing result is inconsistent between two, inputs 1, input 2, input 3 Zhong You mono-road signals break down; If input 1 is different from input 2, input 2 is identical with input 3, and input 3 and input 1 difference, input 1 fault, and input 2 is normal, and input 3 is normal; If input 1 is 2 different with input, input 2 and input 3 differences, input 3 is identical with input 1, inputs 1 normally, and input 2 faults, input 3 normal; If input 1 is 2 identical with input, input 2 and input 3 differences, input 3 and input 1 difference, input 1 normally, and input 2 is normal, inputs 3 faults; According to comparing result, send fault alarm.
By contrast, realize a method for three tunnel input, the front and back level signal that above-mentioned signal is equipment, above-mentioned steps c1 or c2 replace with execution step c3:
Step c3, carries out time delay contrast (this time delay is caused by equipment itself) to a level signal before and after equipment, if comparing result is inconsistent, thinks device failure alert, and comparing result unanimously thinks that equipment is normal.
The invention has the advantages that:
1, effectively filter wherein false, mistake composition, revise wherein bad state, make that integral body is tending towards the most rationally, the state of the safest, hommization, the final complexity that reduces artificial thinking, improves accuracy and efficiency;
2, by the association between multiple signals, the phenomenons such as filtration false, the reliability that increases current warning, discovering device level fault;
3, greatly increase the discovery time of fault and the complexity of minimizing algorithm, thereby raise the efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of across comparison mode flow diagram of realizing the method for three road signal monitorings by contrast of the present invention
Accompanying drawing 2 is a kind of longitudinal way of contrast flow diagrams of realizing the method for three road signal monitorings by contrast of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment provided by the invention is elaborated.
A kind of method that realizes three road signal monitorings by contrast of the present embodiment is mainly used in the audio and video frequency signal of the units such as monitoring under TV station, radio station, satellite digital broadcasting, broadcasting and TV, transmission, transmitting and monitors.Upper is the broadcast that ensures safety, and often wants Dui Zhe tri-road signals to monitor.
Please refer to Fig. 1, Fig. 1 is a kind of method that realizes three road signal monitorings by way of contrast of the present invention
Across comparison mode FB(flow block).When unit broadcasts TV programme, broadcast often while You San road TV signal of front end, be called main path signal, standby road signal, standby 2 road signals, are the broadcast that ensures safety, often want Dui Zhe tri-road signals to monitor, 3 road signals are carried out to across comparison, by image comparison module monitors signal
Image, according to the mode analyzing failure cause of reporting to the police.
Please refer to following table, following table is a kind of across comparison mode statistical table of realizing three road signal monitoring methods by contrast.
| Input 1 * input 2 | Input 2 * input 3 | Input 3 * input 1 | Conclusion |
| Identical | Identical | Identical | Input 1 normally, input 2 is normal, and input 3 is normal, and false-alarm is filtered |
| Different | Identical | Different | Input 1 fault, input 2 is normal, and input 3 is normal, system alarm |
| Different | Different | Identical | Input 1 normal, input 2 faults, input 3 is normal, system alarm |
| Identical | Different | Different | Input 1 normally, input 2 is normal, input 3 faults, system alarm |
For carrying out across comparison between three road signals, above-mentioned across comparison refers in the comparison of Dian Dui tri-road signals at the same time, comprises audio frequency comparison, and image ratio pair according to comparing result, thereby finds that fault produces source, and it comprises the following steps:
Step a, will arrive link independent, the identical and synchronous San road signal of content, and input 1, input 2, input 3, shunt respectively, then at shunting end, carries out signal monitoring, and described three road signal single channel realize Hei Chang, quiet frame, noiseless, mosaic, tie rod identification;
Step b, is carrying out when Hei Chang, quiet frame, noiseless, mosaic, tie rod detect, carrying out contrast between two between three road signals to each road signal in " step a ";
Step c1, if reported to the police when Hei Chang, quiet frame, noiseless, mosaic, tie rod appear in first three road signal, between the signal of Dan San road, comparing result is consistent between two, inputs that 1 is normal, input 2 is normal, input 3 is normal, ignores above-mentioned warning, this is reported to the police as false-alarm;
Or step c2, if reported to the police when Hei Chang, quiet frame, noiseless, mosaic, tie rod appear in first three road signal, between the signal of Dan San road, comparing result is inconsistent between two, inputs 1, input 2, input 3 Zhong You mono-road signals break down; If input 1 is different from input 2, input 2 is identical with input 3, and input 3 and input 1 difference, input 1 fault, and input 2 is normal, and input 3 is normal; If input 1 is 2 different with input, input 2 and input 3 differences, input 3 is identical with input 1, inputs 1 normally, and input 2 faults, input 3 normal; If input 1 is 2 identical with input, input 2 and input 3 differences, input 3 and input 1 difference, input 1 normally, and input 2 is normal, inputs 3 faults, according to comparing result, sends fault alarm.
Please refer to Fig. 2, Fig. 2 is a kind of longitudinal way of contrast flow diagram of realizing the method for three road signal monitorings by contrast.Described longitudinal contrast refers in video flowing appoints and gets any in the contrast of different time points, when video flowing is before and after process equipment, and the image before and after comparison, whether audio frequency etc. are consistent; Described longitudinal way of contrast is provided with EM equipment module, image comparison module, video flowing input module; Described EM equipment module input termination video stream module, described image comparison module one end is connected with video stream module input, and the other end is connected with EM equipment module output.Under the prerequisite of the time delay of considering to cause because of equipment itself, the mode longitudinally contrasting by signal before and after equipment, can discovering device fault.
By contrast, realize a method for three tunnel input, the front and back level signal that above-mentioned three road signals are equipment, above-mentioned steps c1 or c2 replace with execution step c3:
Step c3, contrasts a level signal before and after equipment, if comparing result is inconsistent, thinks device failure alert, and comparing result unanimously thinks that equipment is normal.
The explanation needing, the identical image that refers to two signals of described two signal contrast, audio frequency etc. are identical, and two signal differences refer to the image of two signals, and audio frequency is different; By multiple signals contrast between any two, the warning that can produce according to signal combination of two, can judge out of order signal route, according to type of alarm, can judge this signal fault and be and belong to the faults such as Hei Chang, quiet frame, noiseless, mosaic, tie rod.Described video flowing refers to the transmission of video data, when video flowing runs into equipment fault, the frequency of video flowing, the cycle can change, and the image of demonstration, audio frequency also can change, around this principle, by image comparison module, video streaming image is carried out to front and back contrasts, if image before and after finding, audio frequency are consistent, equipment fault-free, if image before and after finding, audio frequency are inconsistent, device fails.Therefore pass through the across comparison between two between multiple signals, which the longitudinal contrast of equipment can identify is that people is the fault adding, as scene pictures such as blank screen, still frame, local mosaics, which broadcasts link failure causes, Ru Heichang, quiet frame, noiseless, mosaic, tie rod etc., the method can effectively be filtered wherein false, mistake composition, revise wherein bad state, make that integral body is tending towards the most rationally, the state of the safest, hommization, the final complexity that reduces artificial thinking, improves accuracy and efficiency.
Realizing a kind of hardware platform of realizing the method for three road signal monitorings by contrast of the present embodiment, can be to have video flowing input to gather, and the embedded system of image decoding analysis ability, can be also PC or server.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the inventive method; can also make some improvement and supplement, these improvement and supplement and also should be considered as protection scope of the present invention.
Claims (2)
1. by contrast, realize a method for three road signal monitorings, it is characterized in that, the method for described monitoring comprises the following steps:
Step a, link is independent, the identical and synchronous San road signal of content, input 1, input 2, input 3, monitoring respectively, described three road signal single channel realize the step of Hei Chang, quiet frame, noiseless, mosaic, tie rod identification;
Step b, is carrying out when Hei Chang, quiet frame, noiseless, mosaic, tie rod detect each road signal in " step a ", carries out between described three road signals the step of contrast between two;
Step c1, if Hei Chang, quiet frame, noiseless, mosaic, tie rod appear in described three road signals, report to the police, but between described three road signals, comparing result is consistent between two, inputs that 1 is normal, input 2 is normal, input 3 is normal, ignore above-mentioned warning, this warning is the step of false-alarm;
Or step c2, if Hei Chang, quiet frame, noiseless, mosaic, tie rod appear in current described three road signals, report to the police, but between described three road signals, comparing result is inconsistent between two, input 1, input 2, input 3 Zhong You mono-road signals break down; If input 1 is different from input 2, input 2 is identical with input 3, and input 3 and input 1 difference, input 1 fault, and input 2 is normal, and input 3 is normal; If input 1 is 2 different with input, input 2 and input 3 differences, input 3 is identical with input 1, inputs 1 normally, and input 2 faults, input 3 normal; If input 1 is 2 identical with input, input 2 and input 3 differences, input 3 and input 1 difference, input 1 normally, and input 2 is normal, inputs 3 faults; According to comparing result, send the step of fault alarm.
2. a kind of method that realizes three tunnel input by contrast according to claim 1, is characterized in that, the front and back level signal that described signal is equipment, and described step c1 or c2 replace with execution step c3:
Step c3, to the contrast under the time delay time difference prerequisite that level signal is considered to cause because of equipment before and after equipment, comparing result is inconsistent, thinks that described device failure alert, comparing result unanimously think the normal step of described equipment.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104363444A (en) * | 2014-11-24 | 2015-02-18 | 上海风格信息技术股份有限公司 | Video and audio signal analyzing method based on correlation of multiple signals |
| CN104394462A (en) * | 2014-11-24 | 2015-03-04 | 上海风格信息技术股份有限公司 | Recognizing method for mosaic and brace faults of audio and video |
| WO2017181441A1 (en) * | 2016-04-21 | 2017-10-26 | 深圳市樊溪电子有限公司 | Audio and video signal monitoring system |
| WO2017181390A1 (en) * | 2016-04-21 | 2017-10-26 | 深圳市樊溪电子有限公司 | Mosaic fault identification system for multichannel video signals |
| CN107888912A (en) * | 2017-11-22 | 2018-04-06 | 深圳创维－Rgb电子有限公司 | The abnormal recognition methods of display screen display and system |
| CN109001527A (en) * | 2018-10-17 | 2018-12-14 | 北京弘浩千瑞科技有限公司 | A kind of equipment working state detection method |
| CN109493336A (en) * | 2018-11-14 | 2019-03-19 | 上海艾策通讯科技股份有限公司 | Video mosaic based on artificial intelligence identifies the system and method learnt automatically |
| CN110213571A (en) * | 2019-06-13 | 2019-09-06 | 上海佰贝科技发展股份有限公司 | More monitoring point program real-time consistency assessment systems and method in a kind of broadcast link |
| CN110267032A (en) * | 2019-06-13 | 2019-09-20 | 上海佰贝科技发展股份有限公司 | A kind of black picture abnormality real-time quantization assessment system of broadcast items and method |
| CN111555827A (en) * | 2020-05-06 | 2020-08-18 | 中国商用飞机有限责任公司 | Method and apparatus for detecting air-to-ground links |
| CN115457747A (en) * | 2022-10-21 | 2022-12-09 | 贵州广播电视台 | Signal abnormal state alarm method, device, equipment and storage medium |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104394462A (en) * | 2014-11-24 | 2015-03-04 | 上海风格信息技术股份有限公司 | Recognizing method for mosaic and brace faults of audio and video |
| CN104394462B (en) * | 2014-11-24 | 2017-12-08 | 上海佰贝科技发展有限公司 | A kind of identification method of audio frequency and video mosaic and tie rod failure |
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| WO2017181441A1 (en) * | 2016-04-21 | 2017-10-26 | 深圳市樊溪电子有限公司 | Audio and video signal monitoring system |
| WO2017181390A1 (en) * | 2016-04-21 | 2017-10-26 | 深圳市樊溪电子有限公司 | Mosaic fault identification system for multichannel video signals |
| CN107888912A (en) * | 2017-11-22 | 2018-04-06 | 深圳创维－Rgb电子有限公司 | The abnormal recognition methods of display screen display and system |
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| CN109493336B (en) * | 2018-11-14 | 2022-03-04 | 上海艾策通讯科技股份有限公司 | System and method for video mosaic identification automatic learning based on artificial intelligence |
| CN109493336A (en) * | 2018-11-14 | 2019-03-19 | 上海艾策通讯科技股份有限公司 | Video mosaic based on artificial intelligence identifies the system and method learnt automatically |
| CN110213571A (en) * | 2019-06-13 | 2019-09-06 | 上海佰贝科技发展股份有限公司 | More monitoring point program real-time consistency assessment systems and method in a kind of broadcast link |
| CN110267032B (en) * | 2019-06-13 | 2020-12-18 | 上海佰贝科技发展股份有限公司 | Real-time quantitative evaluation system and method for abnormal state of black picture of broadcast program |
| CN110267032A (en) * | 2019-06-13 | 2019-09-20 | 上海佰贝科技发展股份有限公司 | A kind of black picture abnormality real-time quantization assessment system of broadcast items and method |
| CN111555827A (en) * | 2020-05-06 | 2020-08-18 | 中国商用飞机有限责任公司 | Method and apparatus for detecting air-to-ground links |
| CN111555827B (en) * | 2020-05-06 | 2021-09-03 | 中国商用飞机有限责任公司 | Method and apparatus for detecting air-to-ground links |
| CN115457747A (en) * | 2022-10-21 | 2022-12-09 | 贵州广播电视台 | Signal abnormal state alarm method, device, equipment and storage medium |
| CN115457747B (en) * | 2022-10-21 | 2024-02-27 | 贵州广播电视台 | Signal anomaly alarm method, device, equipment and storage medium |
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