Auxiliary door opener in ATM protection cabin and control method thereof

Abstract

The invention discloses an auxiliary door opener in an ATM protection cabin and a control method thereof. The device comprises sound detection modules, a cabin door state detection circuit, a human body recognition sensor detecting a human body in the cabin, and a central processor unit of an electronic switching circuit. A switch of the electronic switching circuit is connected in parallel with a door open button switch in the cabin through a connecting line. The central processor unit comprises an acoustical signal sample library. The number of the sound detection modules is two. The sound detection module comprises a microphone, an audio frequency amplification circuit, and an A / D conversion circuit. One microphone is installed in the cabin, and the other microphone is installed out of the cabin. The method comprises when signal frequency of the two microphones is consistent, and signal amplitude of the microphone in the cabin is larger than the signal amplitude of the microphone out of the cabin, or when the signal frequency of the two microphones is not consistent, comparing the signal amplitude of the microphone in the cabin with crying samples and bark samples, if the signal frequency exists, and an amplitude is larger than a set threshold, outputting an analog signal of the door open button in the cabin, to open the cabin door.

Description

technical field [0001] The invention relates to an electronic system for an ATM machine protection cabin door, in particular to an auxiliary door opening device using specific audio in the ATM machine protection cabin and a control method thereof. Background technique [0002] At present, in the ATM machine withdrawal room (cash booth) of the bank, in order to protect depositors from withdrawing money more safely, some of them are equipped with (closed protective cabins similar to closed telephone booths) closed protective cabins (rooms) outside each ATM automatic teller machine to realize "One person, one cabin", the cabin door is set as a protective door of the electronic system (once entering the withdrawal room, the door lock will be automatically locked and cannot be opened from the outside, so that citizens will be safer when withdrawing money inside), The protective door of the electronic system is provided with a door-opening button inside the cabin door, some are pr...

AI Technical Summary

Problems solved by technology

[0004] The technical problem that the purpose of the present invention and solution is to exist in the existing ATM machine protective cabin and can trap the defective of child, propose a kind of auxiliary door opening device and control method thereof in the ATM machine protective cabin, realize detecting that there is a child in the ATM machine protective cabin. When a child cries or / and a pet dog barks, the door opening device sends a door opening control signal to the electronic system of the protective door of the ATM machine protective cabin, so that the electronic system automatically opens the cabin door

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