CN103581629A - High-definition video monitoring system based on sound mutation - Google Patents
High-definition video monitoring system based on sound mutation Download PDFInfo
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- CN103581629A CN103581629A CN201310570840.7A CN201310570840A CN103581629A CN 103581629 A CN103581629 A CN 103581629A CN 201310570840 A CN201310570840 A CN 201310570840A CN 103581629 A CN103581629 A CN 103581629A
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Abstract
The invention provides a high-definition video monitoring system which is started when abnormal sound exists in the environment. The high-definition video monitoring system is targeted. When abnormal sound is produced in the environment, high-definition camera shooting is started, high-quality video images are provided for video data within special periods of time, and clearer image data are provided for cases or accident analysis in the fields of public security, fire protection and the like.
Description
Technical field
The present invention relates to intelligent audio/video monitor and control system, particularly a kind of audio/video monitor and control system that abnormal noise triggers in environment.
Background technology
In recent years, Chinese Video Surveillance market is subject to safe city construction, the stimulation of the factors such as the security projects such as Beijing Olympic Games, Shanghai World's Fair, the Guangzhou Asian Games, Shenzhen Games for university students and every profession and trade video monitoring demand rapid growth and pulling, obtained unconventional fast development, overall market scale expands rapidly.In Shanghai, Shanghai City whole city's security monitoring camera quantity in 2010 is about more than 20 ten thousand according to statistics, and within 2011, Chinese Video Surveillance Industry overall market scale reaches 230.4 hundred million yuans.But the monitoring of video monitoring most of the time is all skimble-skamble picture, and when accident occurs, the reflection data that need to transfer analysis has definition inadequate, and being difficult to provides effective reflection data for analyzing evidence obtaining.How to be extruded with effective information, and to make full use of limited memory space and day by day become problem demanding prompt solution.
Summary of the invention
For the deficiencies in the prior art, the present invention has designed the intelligent monitor system of the abnormal noise employing high-definition camera in the middle of a set of dependence environment.
Native system comprises a conventional audio/video acquisition module, supports graphics standard CIF, and a high definition video collecting module is supported graphics standard 720p, can mutually switch, and during system initialization, conventional audio/video acquisition module is opened, and high definition video collecting module is closed.An audio collection module, supports audio sample rate 44.1KHZ, quantization width 16 bits.Audio analysis and high definition video collecting control module, do energy and spectrum analysis by the audio frequency collecting, when sound occur Sudden Anomalies (1, volume becomes suddenly large; 2, someone speaks; 3, other larger audible spectrums change) one of or when normal by abnormal restoring, externally send and control message, the object of graphics standard while switching IMAQ to reach intelligence.(when receiving the message that represents cacophonia, start high definition video collecting module, when receiving, represent the normal message of sound, close high definition video collecting module, restart conventional audio/video acquisition module).A conventional audio/video memory module and a HD video memory module, function is that audio, video data compression is stored in the middle of disk, and video compression format is for H.264, and audio compression form is MP3.
Technique scheme of the present invention compared with prior art, has the following advantages:
A, native system can allow important and meaningful scene picture become more clear, this for monitor staff is real-time, monitors and Security Officer's later stage forensics analysis all provides necessary guarantee, because the significant event that is extremely often accompanied by of sound occurs, the high definition image quality of 720P can guarantee that all details of picture are high-visible;
B, native system especially without any the scene employing low resolution monitoring of sound, can be saved the memory space of disk to meaningless greatly;
C, native system can remind monitor staff monitoring place notice that thereby picture avoids the crucial picture that misses off one's guard extremely while having abnormal noise, thereby can process in time some emergency events.
Accompanying drawing explanation
Fig. 1 is the system block diagram forming according to one embodiment of present invention;
In figure: the conventional audio/video acquisition module of 001-, 002-audio collection module, 003-high definition video collecting module, 004-audio analysis and high definition video collecting control module, the conventional audio/video memory module of 005-, 006-HD video memory module;
Fig. 2 is an embodiment flow chart relevant with using method of the present invention.
Embodiment
Below, in conjunction with the accompanying drawings and embodiments the present invention is elaborated.
Fig. 1 is the system block diagram forming according to one embodiment of present invention.
As figure: native system is by conventional audio/video acquisition module 001, audio collection module 002, high definition video collecting module 003, audio analysis and high definition video collecting control module 004, conventional audio/video memory module 005, HD video memory module 006.
Fig. 2 is an embodiment flow chart relevant with using method of the present invention
A, startup system, software and hardware initialization also brings into operation;
(picture quality standard is CIF in B, conventional audio/video acquisition module 001 work, resolution is 352 * 288), video and audio data transmission are compressed storage to conventional audio/video memory module 005, and video compression format is for H.264, and audio compression form is MP3;
C, audio collection module 002(support audio sample rate 44.1KHZ, quantization width 16 bits) Real-time Collection voice data give audio analysis and high definition video collecting control module 004 by data, when voice data have following abnormal (1, volume becomes suddenly large; 2, someone speaks; 3, other larger audible spectrums change) one of time, audio analysis and high definition video collecting control module 004 start high definition video collecting module 003(picture quality standard and adopt 720p, resolution is 1280 * 720p/60Hz), and transferring data to HD video memory module 006, video compression format is for H.264;
D, when voice data recover normal and keep 2 minutes above when normal, audio analysis and high definition video collecting control module 004 will be closed high definition video collecting module 003, and restart conventional audio/video acquisition module 001;
E, system closing;
The above embodiment of the present invention is to be the cited exemplary embodiment of explanation the present invention, rather than the restriction that embodiments of the present invention are done.The obvious variation pattern of being amplified out by the prompting of the embodiment of the present invention is still in the scope of the present invention.
Claims (2)
1. the audio/video monitor and control system being triggered by abnormal noise, comprise conventional audio/video acquisition module (001), audio collection module (002), high definition video collecting module (003), audio analysis and high definition video collecting control module (004), conventional audio/video memory module (005), HD video memory module (006) forms.
2. according to the audio/video monitor and control system being triggered by abnormal noise described in right 1, it is characterized in that: the data that audio analysis and high definition video collecting control module (004) analyzing audio acquisition module (002) are collected, start high definition video collecting module (003) when capturing audio power sudden change.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310570840.7A CN103581629A (en) | 2013-11-17 | 2013-11-17 | High-definition video monitoring system based on sound mutation |
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| CN201310570840.7A CN103581629A (en) | 2013-11-17 | 2013-11-17 | High-definition video monitoring system based on sound mutation |
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| CN104113730A (en) * | 2014-07-14 | 2014-10-22 | 苏州科威视数字技术有限公司 | Monitoring method based on audio analysis triggered alarm and video recording |
| CN104700536A (en) * | 2015-04-07 | 2015-06-10 | 成都爱可信科技有限公司 | Outdoor important facility safety protection device |
| CN105338294A (en) * | 2014-08-07 | 2016-02-17 | 富士通株式会社 | Monitoring device and method |
| CN107635113A (en) * | 2017-09-12 | 2018-01-26 | 中山大学 | It is a kind of to remind the intelligent anti-theft system locked a door |
| CN109963046A (en) * | 2017-12-26 | 2019-07-02 | 原盛科技股份有限公司 | Movement detection device and related mobile detection method |
| CN113438446A (en) * | 2021-05-16 | 2021-09-24 | 鄂尔多斯市龙腾信通科技有限公司 | Urban management village and town extension video networking management system |
| US11871140B2 (en) | 2017-12-26 | 2024-01-09 | Pixart Imaging Inc. | Motion detection methods and image sensor devices capable of generating ranking list of regions of interest and pre-recording monitoring images |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104113730A (en) * | 2014-07-14 | 2014-10-22 | 苏州科威视数字技术有限公司 | Monitoring method based on audio analysis triggered alarm and video recording |
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| CN113438446A (en) * | 2021-05-16 | 2021-09-24 | 鄂尔多斯市龙腾信通科技有限公司 | Urban management village and town extension video networking management system |
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Application publication date: 20140212 |