The Design And Implement Of Wireless Node For WSN

Wireless Sensor Network, integrating with sensor technology, embedded computing technology, distributed information processing technology and wireless communication technology, has became a new research field and had very broad application prospect.The wireless sensor node is the basis hardware platform for establishing a Sensor Network. It's a micro embedded-system with functions such as signal acquisition, data processing, and wireless communication. As sensor networks are usually deployed in nature environment, wireless nodes have to be low power consumption, small size and low cost, compared to the general embedded devices.Design and implement of wireless nodes, not only to provide laboratory researchers major in wireless sensor networks the related hardware test platform, can also be applied to specific projects in reality.After a full investigation, analysis and comparison in related field of WSNs, we present a complete design of wireless node, including the framework of the overall hardware design, the various functional modules selection and the interconnection between modules.When the design of the node is completed, we would produce some prototype nodes. And then, we can test various modules of these nodes by programming driver code.Finally, to verify the workability of these wireless nodes, we will design a wireless sensor network, which can be used for detecting specific electromagnetic wave. And, for the specific application environment, we also raised some improvements for wireless nodes.