Study on ARM-based fire alarm networking unit

An ARM-based fire alarm unit was presented in the paper. The unit hardware was composed of temperature, smog sensors, LPC2478 and GPRS transmission. The unit software was composed of μC/OS - II embedded operation system, data acquisition, the fire identification algorithms and transmission programs. The unit was able to monitor and analyze the room's temperature and smog, and then the analytic result was transmitted to the server by the GPRS wireless module. The comprehensive fuzzy similar algorithm was used to identify the fire and the reliability of alarm was improved effectively.