Optical door magnetic sensor

Abstract

The invention relates to a light-operated door magnetic sensor, which comprises a commutation unit, a voltage division unit and a voltage control unit, wherein the voltage control unit is connected with the voltage division unit and the commutation unit respectively; the voltage division unit is connected with the commutation unit; the commutation unit is provided with two connection terminals which are connected with a door control interface respectively; the voltage division unit is provided with a photosensitive device; the voltage of the connection point of the voltage control unit and the voltage division unit is reduced to turn off the voltage control unit in light environment; the voltage of the connection point of the voltage control unit and the voltage division unit is increased to turn on the voltage control unit in dark light environment. The light-operated door magnetic sensor can response to the light environment in a base station timely, the condition that a person opens a door to enter the base station or light is used can be effectively detected, and a power supply is not required to be mounted.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a light-controlled magnetic door sensor. Background technique [0002] The environmental monitoring of mobile base stations often uses door magnetic sensors to detect whether someone enters the base station. Closed, the door magnetic switch is in a short circuit state; and when the door of the base station is opened, the door magnetic switch is in an open state. There are certain defects in this detection method. For example, some illegal intruders can enter the base station by breaking the door or destroying the wall without directly opening the door of the base station. Vicious incidents such as sabotage or equipment theft. [0003] At present, some units try to use human body infrared sensors in the base station to detect whether someone enters the base station, but this kind of sensor is mainly designed for home or office use, and when the computer room of the base station ...

AI Technical Summary

Problems solved by technology

There are certain defects in this detection method. For example, some illegal intruders can enter the base station by breaking the door or destroying the wall without directly opening the door of the base station. Malignant events such as sabotage or equipment theft

[0003] At present, some units try to use human body infrared sensors in the base station to detect whether someone enters the base station, but this kind of sensor is mainly designed for home or office use, and when the computer room of the base station has high temperature due to abnormal operation of the air conditioner, it is easy to cause this. The sensor has false alarms, and the more important reason is that this human body infrared sensor requires an external power supply, and wiring space and safety issues need to be considered during installation

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