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1. (WO2017181441) AUDIO AND VIDEO SIGNAL MONITORING SYSTEM

Pub. No.:    WO/2017/181441    International Application No.:    PCT/CN2016/080895
Publication Date: Fri Oct 27 01:59:59 CEST 2017 International Filing Date: Wed May 04 01:59:59 CEST 2016
IPC: H04N 17/00
Applicants: SHENZHEN FANXI EELECTRONICS CO., LTD
深圳市樊溪电子有限公司
Inventors: ZHANG, Cong
张丛
Title: AUDIO AND VIDEO SIGNAL MONITORING SYSTEM
Abstract:
An audio and video signal monitoring system: simultaneously introducing N, N being greater than 2, audio and video signals having a same content; detecting a fault type and a fault proximity for each audio and video signal in a real-time manner; comparing the contents of each two audio and video signals, and generating an audio and video proximity between each two signals in a real-time manner; according to the principle "the probability of multiple correlated audio and video signals experiencing the same fault at the same time is small", comprehensively analyzing the fault type, the fault proximity and the audio and video proximity thereof, filtering out false alarms and finally outputting only effective alarms. As the fault type and fault proximity of each audio and video signal, as well as the audio and video proximity between each two audio and video signals are transmitted in a real-time manner, the judgment time and the time delay for alarms are reduced. By means of the connection among a plurality of audio and video signals, the false alarms are filtered out, thereby achieving simultaneous improvement on both alarm accuracy and flexibility.