Design Of Residential Intelligent Fire Alarm System Based On STM32F103

With the rapid development of electronic intelligence technology in the field of science and technology, electronic intelligence products have already been used widely in people’s daily life. The people’s living standards also improved very quickly. At the same time the requirement of housing security and intelligence increase the more that was needed. Residential fire security alarm system has been changed from the manual operation stage to the intelligent age, which provided a good development foundation for the intelligent fire alarm technology.Design of the residential intelligent fire alarm system is based on STM32F103ZET6 MCU and GSM message module. The main function is to control household devices and detect residential early-warning signal(theft and fire). When the abnormal situation occurs in the house, this system triggered the sound, light alarm and sent GSM message to user’s phone, at the same time the user can control the household appliances through the GSM message. Compared with the traditional fire alarm system, in this thesis, the fire alarm system was characterized by wireless data transceiver, alarm(acousto-optic alarm and GSM message alarm), intelligent control, and simple hardware structure. The advantages of this method are convenient and quick. This alarm system mainly consists of the following parts: the fire alarm system design of master microcontroller circuit, the PT2262/PT2272 wireless data transceiver module design of early-warning signal, security sensor circuit design, fire sensor circuit design and GSM message module circuit design etc. User’s phone communicates with the MCU control system through the GSM message module. The STM32F103ZET6 MCU is responsible for receiving the data of the main control module, sound and light alarm, GSM message alarm and implementation of each function module control. Secondary STM32F103ZET6 MCU module is also responsible for the control of some sensor data acquisition module and data wireless transmission.The simulation result shows that this system effectively realized the sensor data acquisition, wireless data transmission, LCD liquid crystal display, alarm, GSM message transmission and other functions. This system fulfills the design requirements.