Hardware Node Design For Wireless Sensor Networks

This article is about the research in the technology of wireless sensor networks, providing a solution which is named gateway of wireless sensor networks that make it conveniently to change data of wireless sensor networks with data of Ethernet. It completes the communication in wireless sensor network and Ethernet with a convenient data frame change. The article provides the hardware nodes design for wireless sensor networks which is depending on CC2530, completing a simple wireless sensor networks and gateway designing successfully.The technology is progressing so rapid that we even would not know what will happen in the next day in our life, so we want our communication should go in front of us today. Then, the technology of wireless sensor networks comes about which is depending on highly integrated and across of telecommunication, embalmed computer, and information technology. It make it the physic world, computer world and our society together through rapidly information exchanging that is integrated by wireless sensor network in which the nodes collecting the information such as light and pressure of monitor and sending it to the gateway nodes by wireless communication one hop or multi-hops method. All independent nodes connect together into line and integration.The article studies about the most popular solution in embedded system and gateway of wireless sensor networks that is depended on ZigBee solution of TI Company, and designs the ZigBee gateway of wireless sensor networks in low rate, low power, and wireless communication. With using LM3S9B9(ARM Cortex-M3) processing mode, it designs the node of wireless sensor network on CC2530and researches about the Z-stack protocol of TI Company, completing the information collecting, changing, communication and controlling. The data frame changing is made by using embedded C language on computer.At last, the testing software is made on Windows XP system by using Visual Studio2005. It gets the whole solution of gateway designation of wireless sensor network and the result of testing. With making it possible to simplify get though the wireless sensor network and Ethernet, it comes out the theory of wireless sensor network and give a new method to research the communication in the future.