Design of nodes for embedded and ultra low-power wireless sensor networks

Sensor network integrates sensor technology, MEMS (Micro-Electro-Mechanical system) technology, embedded computing, wireless communication technology and distributed information management technology. It is of great value to use it where human is quite difficult to reach. Power consumption and size are the most important consideration when nodes are designed for distributed WSN (wireless sensor networks). Consequently, it is of great importance to decrease the size of a node, reduce its power consumption and extend its life in network. WSN nodes have been designed using JN5121-Z01-M01 module produced by jennic company and IEEE 802.15.4/ZigBee technology. Its new features include support for CPU sleep modes and a long-term ultra low power sleep mode for the entire node. In low power configuration the node resembles existing small low power nodes. An embedded temperature sensor node has been developed to verify and explore our architecture. The experiment results indicate that the WSN has the characteristic of high reliability, good stability and ultra low power consumption.

[1]  C. Enz,et al.  Ultra low-power radio design for wireless sensor networks , 2005, 2005 IEEE International Wkshp on Radio-Frequency Integration Technology: Integrated Circuits for Wideband Comm & Wireless Sensor Networks.

[2]  R. Morais,et al.  A ZigBee Sensor Element for Distributed Monitoring of Soil Parameters in Environmental Monitoring , 2007, 2007 IEEE Sensors.

[3]  Yang Xianglong,et al.  A Design of Greenhouse Monitoring & Control System Based on ZigBee Wireless Sensor Network , 2007, 2007 International Conference on Wireless Communications, Networking and Mobile Computing.

[4]  Gwo-Jia Jong,et al.  The Wireless Sensor Network for Home-Care System Using ZigBee , 2007, Third International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP 2007).

[5]  A. Bonastre,et al.  Application of Wireless Sensor Network to Direct Load Control in Residential Areas , 2007, 2007 IEEE International Symposium on Industrial Electronics.

[6]  Hannu Tenhunen,et al.  UWB radio module design for wireless sensor networks , 2005, 2005 NORCHIP.