Audio exception event detection system and calibration method for the same

Abstract

The invention discloses an audio exception event detection system and a calibration method for the same. The audio exception event detection system comprises an audio data acquisition module, an audio data analysis module and a background management module. The audio data acquisition module comprises a sound pickup, an acquisition card and a computer, the acquisition card acquires audio data in the sound pickup and stores the acquired data in a memory of a computer; the audio data analysis module preprocesses the audio data acquired by the acquisition card, extracts analysis features, detects and judges an exception event, and outputs the detection result to the background management module; and the background management module performs alarming triggering management according to the detection result output by the audio data analysis module. The audio exception event detection system not only uses the new audio analysis features and technologies to realize the audio exception event detection and effectively improves the reliability of an intelligent security system, but also calibrates the audio receiving capability of the sound pickup, thereby simplifying the regulation of the parameters in the audio intelligent analysis technology.

Description

technical field [0001] The invention relates to an abnormal event detection system, in particular to an audio abnormal event detection system and a calibration method thereof. Background technique [0002] With the continuous development of society, various criminal incidents are also constantly occurring, and the security system for preventing and guaranteeing the safety of personal property is therefore more and more widely used. However, in the face of increasingly rampant crimes and changing criminal methods, the traditional security system has been greatly challenged, and the shortcomings of the traditional video surveillance security system are increasingly exposed. Facing these deficiencies, the intelligent video analysis system was born, which largely solved the disadvantages of traditional security systems, such as for various specific applications, intelligently analyze video images to detect certain specific behaviors and generate alarm information and record in ...

AI Technical Summary

Problems solved by technology

However, in the existing audio intelligent analysis technology, relying solely on the characteristics of sound intensity changes cannot guarantee the reliability of the intelligent security system, and because the pickups installed on site cannot be uniformly installed or replaced, the pickup capabilities of the pickups are different. In the state where the ability of the pickup to receive audio is unknown, it will be extremely difficult to adjust the audio intelligent analysis parameters properly, and even cause the audio intelligent analysis technology to fail

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