Non-independent electric fire monitor detector based on two-bus

WANG Liang， QIN Hui-bin
（College of Electronic Information， Hangzhou Dianzi University， Hangzhou 310018，China）

Abstract： Aiming at high cost，complex structure and the high failure rate of independent fire monitoring detector used on the market，the two-bus used in the automatic fire alarm field was used in the design of detector. After the analysis of related products and technologies，and the comparing with the detector based on the two-bus，which already exists in the field of electrical fire monitoring system， the design idea of current electrical fire monitoring detector based on the two-bus was established. Then，the two-bus communication protocols applicable to electrical fire monitoring system were formulated，what is more，the hardware and software structure  of the design were given. The results indicate that the design is practicable，and the detector can stably work，and the detector can be applied to the electrical fire monitoring system.
Key words： two-bus；electric fire；detector；PIC16F676