The Design And Implementation Of CNG Filling Stations Safety Monitoring System Based On ARM

With the quick development of communications, networkings, and microelectronics technology, security monitoring system has been applied to more and more sectors of society. Because security monitoring involves sensor technology, communications technology, control technology, and other neighborhoods, so it has been a hot research and application. For CNG filling stations that rising domestic industry, because of its great potential hazards, security monitoring system has more value.The topics to CNG filling stations is in the context of safety regulation, with ARM core architecture, embedded Linux operating system as development platform. RFID (radio frequency identification), ZigBee wireless sensor network, database applications, as well as network transmission make up the security monitoring system. The entire system's software development environment is C language under Linux. This paper introduces the research background, significance and research status at home and abroad,according to the needs of CNG filling stations under actual circumstances, comparing several different aspects of design ideas from the efficiency and implement, and then combined with the advantages and disadvantages, this paper gives the overall design. This paper describes a hardware system based on S3C2440 ARM9 chip, and gives a depth study of the safety control system architecture, RFID subscriber Identity Module, as well as ZigBee interior temperature and air leak detection module. And then fully explores the software design under embedded Linux system, which focuses on the RFID, ZigBee communication protocol and the development process, and the related database to read and write, MP3 voice prompts, using the TCP/IP for network data transmission and the servers's software. At last it gives the test results and analysis.