Research Of Fire Alarm Master Control System Based On The ARM Embedded

With the development of Intelligence Building in city and the steady advancement of urbanization, people begin to realize the importance of fire control, and then high-performance fire alarm system products intending to protect property and human security are heavily needed. Presently the domestic fire alarm system is mainly applied in high-grade residence, shopping mall, office buildings, etc. For the residential area that is no property management or already put into use and the new urbanized residence, low cost and convenient managing fire alarm system products are relatively less. This type of products has a wide horizon of development in the rising market. In combination market demand and full consideration of technical feasibility condition, the topic of this paper bases on the ARM embedded technology, by studying the C kind household fire alarm master control system suitable for the residential area which is no property management or already put into use and the new urbanized residence, puts forward a research plan of fire alarm master control system based on ARM embedded.Firstly, using SAMSUNG'S S3C2410A ARM9 chips as a system master control CPU, the topic of this paper draws out a whole framework of master control system, and divides the function of each module in this system. Under the condition of cost control and performance requirement, the author fulfills the core ship choosing of master control circuit, completes the design of circuit principle diagram and PCB, and the welding and debugging of hardware. Considering the requirements of system upgrading when designing, the main controller provides sufficient software platform and hardware function module, such as GPRS interface, USB module, LCD interface, etc.Secondly, after building an Arm - Linux cross-compiling environment, the author designs the master control system's software, which includes the design of system startup code boot loader, the configuration and transplantation of kernel and also the design of root file system transplantation and driving the software. Then the author writes and tests the application program about the serial port fire signal data receiving of the main controller, and the voice alarm broadcasts in master control system.Finally, this thesis also engages in studying wireless acquisition network on fire signal, which finishes the principle diagram design of wireless acquisition node based on the combination of STC and the nRF905 wireless transceiver module of FEITUO Electron, the work of hardware plate-making and software design, by using wireless acquisition node additional sensor.At the end of this paper, the author summarizes the completion of the subject. And also put forward the improving work that should be done in the future. Generally speaking, the clear purpose of the study, the fulfillment of the basic function, and the achievement of the research's original purpose, all these lay a good foundation for the further research.