Temperature and residual current hybrid detection and identification method of electrical fire detector

Abstract

The invention discloses a temperature and residual current hybrid detection and identification method of an electrical fire detector. The temperature and residual current hybrid detection and identification method comprises the following steps of (1) accessing a sensor; (2) allowing a system to be energized, wherein a waveform of a control port IO-VCC1 is a waveform A at the moment; (3) judging awaveform of a sampling port AD0, accessing a residual current sensor and executing the step (4) if the waveform is a waveform B, accessing a temperature sensor and executing the step (5) if the waveform is a waveform C, judging that open circuit exists in the sensor if the waveform is a waveform D, and judging that short circuit exists in the sensor if the waveform is a waveform E; (4) controllingthe port IO-VCC1 to output a low level, and configuring a parameter needed by residual current detection by an MCU to acquire a residual current value of the circuit; and (5) controlling the port IO-VCC1 to output the low level, and configuring a parameter needed by temperature detection by the MCU to acquire a temperature value of the circuit. By the temperature and residual current hybrid detection and identification method, the problems of high requirement on a technician, installation trouble, resource waste and easy false alarm of the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a mixed detection and identification method for the temperature and residual current of an electrical fire detector. Background technique [0002] With the advancement of science and technology, my country has become a big electricity consumer, and the per capita electricity consumption continues to grow. The increase in electricity consumption has also greatly increased the risk of electrical fires. [0003] In the initial stage of an electrical fire, it is difficult for people to realize that only with the help of fire detection tools can the risk of fire be reduced as much as possible and the loss of life and property caused by fire can be avoided. At present, there are several types of electrical fire detectors on the market, and the commonly used ones mainly include residual current detection, temperature detection, arc detection, etc. Most manufacturers use differ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a mixed detection and identification method for the temperature and residual current of an electrical fire detector, aiming to solve the problems existing in the prior art, such as high requirements for technicians, troublesome installation, waste of resources, and easy false alarms

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