摘要
传统飞机发动机舱火警报警系统呈现误报率高、漏报率高的特点,本文提出了基于PIC单片机的紫外火警探测方法 ,以提高系统的稳定性和可靠性。本文介绍了紫外光电管的工作原理,阐述了系统的结构和工作原理,同时设计了RS422通信模块。实验结果表明,该系统能够实时可靠的进行火警监控,并完成单片机与上位机的稳定通信。
The traditional fire alarm system of aircraft engine compartment has high rate of false positives and false negative. In this paper, the method of ultraviolet fire detection based on PIC is proposed to improve the stability and reliability of the system. This paper introduces the working principle of the uv photocell and the structure of the system. Meanwhile RS422 communication module is designed. The experimental result indicates that the system is able to monitor the fire danger in time and ensure the stable communication between MCU and Host-Computer as well.
出处
《自动化技术与应用》
2015年第12期81-84,92,共5页
Techniques of Automation and Applications
