Elevator platform detecting system and method based on audio analysis
A technology of audio analysis and elevator platform, applied in the field of audio analysis and elevator safety, can solve the problems of lack of technology and inability to analyze, and achieve the effect of improving rescue efficiency, avoiding unsmooth information transfer, and improving safety performance.
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[0026] Example 1, see attached figure 1 .
[0027] This embodiment provides an elevator platform detection system based on audio analysis. The detection system includes an audio collection unit 1, an audio analysis unit 2, an audio comparison unit 3, and an alarm unit 4.
[0028] Among them, the audio collection unit 1 collects the sound information in the elevator car in real time. The sound information especially includes human voices and other sounds made by the human body. In addition, it also includes everything that can be collected when the elevator car is running. Sounds, human voices are usually made by elevator passengers. Generally speaking, passengers in elevators will not make too much sound. Normal conversation or silent or curious friction sound from human movements can be used as Human voice is collected. When special circumstances occur in the elevator car, such as abnormal operation of the car that scares or even hurt passengers, or there are disputes among passen...
Example Embodiment
[0036] Example 2, see attached figure 1 .
[0037] The method uses the above-mentioned detection system and includes the following steps:
[0038] S1: Collect the sound signal in the elevator car in real time through the audio collection unit installed in the elevator car and send it to the audio analysis unit;
[0039] S2. The audio analysis unit analyzes the sound signals collected by the audio collection unit in real time. The analysis results include two types of sound information of passengers in the elevator and no passengers in the elevator, and the analysis results are sent to the audio comparison unit; specifically, the audio The analysis unit's analysis of the collected sound information includes:
[0040] S2.1: Perform noise separation on the collected sound information, extract the elevator running noise and other audio signals separately, and classify and mark them,
[0041] S2.2: Perform audio frequency spectrum analysis on the audio information after noise removal, and a...
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