This invention discloses an
elevator multi-device volume adjustment
system based on passenger behavior, comprising: a
signal acquisition module, which acquires all sound signals inside the
elevator car and at the landings and outputs digital signals; a voice
signal pre-cancellation module, which receives the digital signals output by the
signal acquisition module, removes sound signals from known devices inside the
elevator car and at the landings, and then outputs the separated
sound sources; a voice separation module, which receives the
sound sources output by the voice signal pre-cancellation module, separates human voices from ambient sounds, and outputs the processed sound signals; and an intelligent volume adjustment module, which adjusts the volume of voice announcements and
multimedia devices inside the car or at the landings, so that the ratio of passenger conversation voices to ambient volume reaches a preset range. This invention can detect and separate passenger conversation voices from numerous
sound sources in the car and at the landings, obtaining feedback directly related to passenger conversation behavior. Based on this feedback, the volume adjustment strategy is more accurate and adaptable to different scenarios.