System for detecting lamps of elevator cab

Abstract

The invention discloses a system for detecting lamps of an elevator cab. The system comprises an elevator controller, a camera unit and a light intensity sensor, wherein elevator controller pre-stores a normal brightness value in the elevator cab, controls the light intensity sensor to detect the brightness in the elevator cab during work, and compares the detected brightness of the elevator cab at that moment with the normal brightness value; the camera unit shoots the brightness in the elevator cab, and compares the brightness with the normal brightness value; and if the brightness in the elevator cab detected by the light intensity sensor or the brightness shot by the camera unit in the elevator cab is lower than the normal brightness value, lamp failures in the elevator cab are identified. According to the system for detecting the lamps of the elevator cab, the light intensity sensor and the camera unit are used for acquiring and comparing the brightness in the elevator cab, so that the system can be used for supplement the conventional technology for detecting lamp current of the elevator cab, missing detection and error detection are effectively prevented, the aim of effectively monitoring the working situation of the lamps and the brightness in the elevator cab in real time is fulfilled, and adaptability adjustment can be performed at the same time to ensure that the operation of the elevator is humanized.

Description

technical field [0001] The invention relates to an elevator, in particular to an elevator car lamp detection system. Background technique [0002] The car is the space for the elevator to carry and transport people and materials. Since it is closed during operation, it needs to provide appropriate lighting for the passengers. Therefore, it is necessary to install lighting fixtures in the car, and it is necessary to ensure that the lighting fixtures Always in normal working condition. In order to achieve this purpose, the current elevator usually judges whether the car light is working normally by detecting the voltage of the car light; however, in actual situations, the voltage detection of the car light When the car light is damaged and opened, the car light still has voltage. Simply by detecting the car light voltage, it is obvious that a misjudgment will occur. It can be seen that the current elevator car light detection technology still needs further improvement. Con...

AI Technical Summary

Problems solved by technology

In order to achieve this purpose, the current elevator usually judges whether the car light is working normally by detecting the voltage of the car light; however, in actual situations, the voltage detection of the car light When the car light is damaged and opened, the car light still has voltage. Simply by detecting the car light voltage, it will obviously lead to misjudgment

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