Design Of Embedded Security System Based On Zigbee

Times are changing, science and technology is processing, and things are constantly changing,but people always put home security in mind. From the old property safety to the present personal safety, the Home Furnishing security requirements have become higher. So many high-tech added to solve the problem of ranks,the variable function of embedded technology, advanced wireless transmission technology. Since the addition of these techniques, intelligent security become worthy of the name,also towards a higher intelligence.This paper based on the actual needs of real customers, in the transformation of the house to minimize cabling requirements, as far as the general price achieve multi satisfied, and try to achieve human-computer interaction, finally, to meet the people’s basic needs of intelligent life. So this paper designs the core parts of the system embedded gateway and the peripheral devices of key parts.The software environment of the core uses linux system and various compilers and transfer software, as a basis for compiling various drive and interface,and test code. Hardware part selecteds the S3C2440 chip of ARM9,and designs a board equipped with various hardware, which is equipped with NAND Flash, LCD, DM9000 NIC etc. The peripheral devices is divided into four parts, two key components of wireless transmission systems and video surveillance systems, and the remaining two parts of the sensor and external communication CDMA module. By comparing the transmission system, high-performance Zigbee is selected, based on analysis of usage scenarios and topologies,star topology and high-performance wireless transmission module of CC2530 are selected, as a basis for the preparation of a wireless transmission system code to build the entire wireless transmission systems. Video surveillance system choose he widely compatible USB camera in meeting the needs of the premise, for these reasons the paper designs schematics and software drivers, allow the video is displayed on the LCD or on a network or on the PC. CDMA module’s selection is based on the user can keep indoor monitoring and early warning in case of no network.Finally, a brief introduction of several mass sensor, the paper designed the circuit and incorporate these devices in the network. In order to achieve a 360 degree monitoring of financial and personal safety, he high-speed processing and early warning of monitoring information, and the extensive use of the entire system.