The Fire System With Intelligent Wireless Acquisition Basd On LM3S9B96

With the continuous development of social economy, the risk of fire is very larger than before, because high-rise buildings appear constantly. Nowadays, fire control work is becoming more and more important, to avoid damage to people’s life and property. Though, at present, most of the buildings are equipped with fire automatic alarm system, to some extent, it can prevent fire. Due to human factors and the malfunction of alarm equipment, fire protection system can’t recovery, which will lead to fire spread and cause enormous losses. So, when an exception occurs, it is the key to report to the superior or relevant departments immediately, only in this way can we control the fire and nip in the bud stage, in order to reduce the fire disaster. In addition, for companies with security video monitoring system, when the fire alarm sounded, because the area is under the linkage of video monitoring, not only can provide the details of the fire alarm for fire command center, but also can carry out rescue work more effectively with the help of these video images from the scene.The background and significance of this subject in the paper were elaborated. With the introduction of the Internet of things and fire Internet of things, the structure diagram of system, hardware and software were completed. Thus, the function of intelligent fire wireless collection system was realized.Taking the kernel Cortex-M3based on LM3S9B96as the core of chip of mainly fire alarm controller, which belong to LM3S series, we extended multiple function modules, so as to realize the system’s multi-functional and intelligentialize. Wireless fire alarm local area network was build with temperature sensor, smoke sensor based on CC2530Zigbee protocol chip. The data display and detection was competed by data collection and transmission of the touch screen and Ethernet through LM3S9B96+CC2530coordinator. Meanwhile, the design of hardware module and the circuit principle diagram were given together.The design of every module’s subroutine and the flow chart were given, and some source code were written together. The initialization of the system, wireless networking, touch screen display and input, Ethernet communication and alarm, and other functions were realized. Take the IAR Embedded Workbench software as the integrated development environment, which is belong to the company of IAR Systems.The fire wireless intelligent acquisition system based on the LM3S9B96in this paper has the following features:(1) The intelligent design of wireless nodes of CC2530+LM3S9B96was completed, and wireless data transmission was realized by the combination of CC2530+LM3S9B96and the module of Ethernet communication, in order to data transmission more conveniently.(2) Due to the decrease of Wireless sensor’s wiring, to a certain extent, the mobility of the nodes was improved. At the same time, this system can be updated and adjusted more conveniently. It is believed that the system will take on a wide reference value in the applications of Internet of things.