Intelligent elevator safety key input device and method for preventing and controlling virus infection

Abstract

The invention discloses an intelligent elevator safety key input device and method for preventing and controlling virus infection. The intelligent elevator safety key input device includes an elevatorsafety key, a control circuit is arranged inside the elevator safety key, the control circuit is composed of a microcontroller and peripheral sub-circuits, and a light intensity detection circuit isarranged inside the elevator safety key; the light intensity detection circuit memorizes current ambient light intensity under the control of the microcontroller and converts the current ambient lightintensity into a voltage signal to be stored in a memory capacitor; a reflective photoelectric sensor receiver is used to convert total light intensity reflected into the interior of the safety key into a voltage signal and input the voltage signal into a voltage comparator through an in-phase buffer and transmit a signal to the microcontroller after the voltage of the voltage signal is comparedwith a memory voltage; and after the microcontroller detects the key to be used by a user, the microcontroller outputs a signal to control a safety key drive circuit, through the driving of a photoelectric coupler and a transistor Q4, a normally open contact of a relay is controlled to be closed, and the automatic pressing of the elevator safety key is realized. According to the intelligent elevator safety key input device and method, virus can be effectively prevented from spreading through the car-type elevator key.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an intelligent elevator safety button input device for preventing and controlling virus infection and a method thereof. Background technique [0002] The car-type elevators that can be seen everywhere in life are generally fully enclosed. Although a few are equipped with exhaust ventilation devices, the air circulation in the car is still very poor. Since the winter of 2019, a new type of coronavirus has begun to spread. The invisibility of its transmission is one of the main reasons for its rapid spread, especially through ordinary elevator buttons. [0003] Some car-type elevators in high-rise buildings, because the car is almost closed, the virus is easy to stay in it for a long time, especially the elevator buttons that users often touch, it is very easy to attach the virus. However, as an important living facility, the elevator is indispensable. To use the elevator, the u...

AI Technical Summary

Problems solved by technology

[0002] The car-type elevators that can be seen everywhere in life are generally fully enclosed. Although a few are equipped with exhaust ventilation devices, the air circulation in the car is still very poor.

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