Tracking method and system of security monitoring and early warning event
A security monitoring and event technology, applied in anti-theft alarms, alarms, instruments, etc., can solve the problem of low efficiency of massive video data and achieve the effect of improving search efficiency
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Embodiment 1
[0034] figure 1 It is a flow chart of a method for tracking security monitoring and early warning events in a preferred embodiment of the present invention; the method of the present invention is applied to monitoring equipment including audio, and includes the following steps:
[0035] S1: Set the current detected video frame and the initial value of the current audio valid data start detection frame number;
[0036] The initial value of the current valid audio data start detection frame number is Num+1, where Num represents the number of audio frames used for estimating the environmental signal-to-noise ratio or calculating the threshold when detecting the valid audio data.
[0037] In the embodiment of the present invention, the currently detected video frame is set as the first video frame image, and the current valid audio data start detection frame is set as the Num+1 audio frame.
[0038] S2: Carry out early warning point detection according to the early warning mode. ...
Embodiment 2
[0081] Figure 4 It is a structural diagram of a security monitoring and early warning event tracking system in a preferred embodiment of the present invention; the system includes:
[0082] The starting frame setting module is used to set the initial value of the current detection video frame and the current audio effective data start detection frame sequence number;
[0083] The initial value of the current valid audio data start detection frame number is Num+1, where Num represents the number of audio frames used for estimating the environmental signal-to-noise ratio or calculating the threshold when detecting the valid audio data.
[0084] The early warning point detection and processing device is used to detect the early warning point according to the early warning mode. When an early warning event is detected, enter the first relevant parameter update module of the early warning event, otherwise continue to detect the early warning point until the end.
[0085] The firs...
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