Device and method for flame detection based on two-infrared (IR) two-ultraviolet (UV) composite detection technology

Abstract

The invention provides a device for flame detection based on a two-infrared (IR) two-ultraviolet (UV) composite detection technology. The device comprises four flame detectors. Each flame detector is electrically connected with a field programmable gate array through a logarithmic amplifier, a band-pass filter and a high-precision analog-to-digital converter corresponding to the flame detector in sequence. The field programmable gate array processes the digital signals of the channels where the four flame detectors are located in parallel. The field programmable gate array is electrically connected with a micro control unit. The micro control unit is provided with an RS485 interface and a CAN bus interface. The four flame detectors comprise two infrared detectors and two ultraviolet detectors. The purpose of the invention is to provide a device and a method for flame detection based on a two-infrared (IR) two-ultraviolet (UV) composite detection technology in view of the defects of the prior art and to solve the problem that the existing flame detector is of low sensitivity and high false alarm rate.

Description

technical field [0001] The invention belongs to the technical field of flame detection, and in particular relates to a device and method for flame detection realized by red-purple composite detection technology of two infrared (IR) and two ultraviolet (UV). Background technique [0002] In the departments of production, processing, storage, use and transportation of various combustible substances, aircraft hangars, large oil and gas tank farms, key petrochemical installations and automatic processing plants, etc., it is necessary to be equipped with reliable and responsive flame detectors . As we all know, if the flame detector can detect a "small fire" immediately when the flame just ignites, people can take fire-fighting measures as soon as possible, thereby avoiding or reducing losses, which is often more effective. Therefore, whether it is a simple flame detection system or a flame detection as part of an automatic fire extinguishing system, quite high requirements are ...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the present invention is exactly at the defective of prior art, provides a kind of device and the method that a kind of two infrared (IR) two ultraviolet (UV) red-purple composite detection technology realizes flame detection, improves the low sensitivity of existing flame detector, false alarm High rate and other issues

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