Electrical fire early-warning device and electrical fire early-warning method

Abstract

The invention relates to an electrical fire early-warning method. The method includes the following steps: (A) the sound, ultraviolet radiation and arc signals of arc discharge are detected; (B) after being processed by a circuit, the signals are transmitted to a singlechip; (C) the signals are analyzed by the singlechip, and when signal values reach set early-warning values, an early-warning unit is controlled to emit early-warning signals. In addition, the invention also provides an electrical fire early-warning device, which comprises a power supply, a signal detection unit, the singlechip and the early-warning unit, wherein the power supply is connected with the singlechip, the signal detection unit and the early-warning unit; and the signal detection unit comprises an ultrasonic sensor, an ultraviolet sensor and an arc sensor. Since the electrical fire early-warning device adopts the ultrasonic sensor, the ultraviolet sensor and the arc sensor to detect arc discharge, not only can arc information be accurately captured, but also the interference of environmental noise and other light can be prevented, and thereby the accuracy of early warning is guaranteed.

Description

technical field [0001] The invention relates to the field of circuit technology, in particular to an electrical fire early warning device and method. Background technique [0002] Although the current low-voltage power distribution switches have certain protection functions, they are generally protected against overload, short circuit, leakage, etc., and lack early warning functions for electrical fires. There have also been low-voltage power distribution cabinets with fire alarm functions, such as the "fire-fighting AC low-voltage power distribution cabinet (application number: 97227882.6)" applied by the applicant (patent) Yang Wenhai in 1999. Fire detectors are installed in the cabinet , has the functions of fire detection and fire alarm, but it cannot give early warning to electrical fire hazards. In addition, there have also been some electrical fire on-line monitoring and alarm devices or systems, such as the "On-line Monitoring and Alarm Device for Electrical Fire Ha...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that the early warning methods and early warning devices for electrical fires in the prior art cannot detect the arc in the distribution cabinet, and the detection method and device still have deficiencies and defects, which need further improvement. Early warning, easy installation and use, electrical fire early warning devices and methods to avoid and reduce the occurrence of electrical fires are really one of the important research and development topics

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