基于FPGA的独立火警检测及告警电路  

FPGA Based Independent Fire Detection and Alarming Circuit

作　　者：朱耀国[1] 刘逸涵 孙少华 ZHU Yao-guo;LIU Yi-han;SUN Shao-hua(Xi'an Aeronautics Computing Technique Research Institute,AVIC,Xi'an 710000,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710000

出　　处：《航空计算技术》2021年第6期110-111,116,共3页Aeronautical Computing Technique

基　　金：航空科学基金项目资助(2016ZC31004)。

摘　　要：火警探测及告警系统是飞机系统的重要组成系统。介绍了一种基于FPGA的独立火警检测及告警电路,提高了火警检测及告警任务的独立性,电路可对自检测开关状态及火警气动传感器的阻值进行采集,在自检状态下可对检测及告警电路的有效性进行检测,同时在正常工作状态下对火警状态进行监测并进行告警,且具备防误报策略,避免虚警的发生。Fire detection and alarming system is the important composition of the airplane.This paper introduces a FPGA based independent fire detection and alarming circuit which enhances the independence of fire detection and alarming tasks.The circuit can acquire the status of the self-test button and the resistance of fire detector capsule,checking the validity of detection and alarming circuits under self-test situation,supervising the fire status and reporting the alarm under normal working situation.With misoperation-preventing strategy,the system can effectively avoid the false alarm.

关 键 词：FPGA 独立 火警 自检 防误报 

分 类 号：V243[航空宇航科学与技术—飞行器设计]