Early warning device, glass fixing equipment, glass early warning system and glass early warning method

Abstract

An embodiment of the present invention provides an early warning device, including a transmitting mechanism, a two-dimensional grating, a receiving mechanism and an early warning mechanism. The transmitting mechanism is used to emit the first plane incident light and the second plane incident light; The two-dimensional grating is used to convert the first plane incident light and the second plane incident light into the first diffracted light and the second diffracted light respectively; the receiving mechanism and the transmitting mechanism are respectively arranged on the same side of the two-dimensional grating, and the receiving mechanism is used to receive the first diffracted light The first diffracted light and the second diffracted light, and obtain the interference image formed by the first diffracted light and the second diffracted light; the early warning mechanism is connected with the signal of the receiving mechanism to determine the stress value according to the interference image, and judge whether to issue an early warning according to the stress value Signal. The early warning device provided by the invention obtains the stress value based on the principle of grating interference, effectively solves the problem of false alarms and is not disturbed by the noise environment. The embodiment of the present invention also provides a glass fixing device, a glass early warning system and a glass early warning method.

Description

technical field [0001] The present application relates to the technical field of early warning devices, in particular to an early warning device, glass fixing equipment, a glass early warning system and a glass early warning method. Background technique [0002] In current high-rise buildings, there may be ruptures of indoor or outdoor glass due to external shock waves or improper decoration or installation. For example, the glass curtain wall near the elevator often cracks and breaks due to the vibration caused by the abnormal operation of the elevator. People judge whether to replace it by looking at the cracks in the glass. This kind of early warning measures has great potential safety hazards, and the early warning time is relatively slow. There is a danger of high-rise glass falling and hurting pedestrians after being broken. [0003] At present, there are mainly three types of breakage early warning devices for high-rise glass. The first is that early warning chips ...

AI Technical Summary

Problems solved by technology

The first type of early warning device can only alarm when the crack reaches more than 5mm, and the early warning accuracy is not enough

The application scenarios of the second and third early warning devices are relatively limited. If there are heavy curtains, blinds and other objects that absorb sound waves near the glass, the detection performance will be reduced; in addition, in a noisy environment It is difficult to detect accurately, and the probability of false alarm or false alarm is high

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