Remote Medical Care Node Design And Research Based On ZigBee Technology

With the development of the computer, communications, electronics, multimedia technology, wireless sensor networks has become a key technologies as for family-oriented health information monitoring system. ZigBee technology as a new short-range wireless communications technology is suitable for health care monitoring.In order to achieve medical treatment at home, through analyzing topology of the zigbee wireless sensor network, a remote medical care node design based on zigbee technology is presented.The project combines with ZigBee wireless sensor network technology, EDGE communication technology and ARM9 Embedded Linux system. The design consists of the medical sensor nodes and home gateway nodes, which makes up wireless sensor networks with point to point. Medical sensor nodes or the wireless sensor terminal nodes is mainly responsible for collecting the pulse information of the patient and data is transfered to the home gateway through ZigBee wireless. while monitoring the patient ,patient can do everything at home .The gateway node is a coordinated function of the node to the core ARM9 S3C2410 processor, embedded Linux system can realize ZigBee communicate of the sensor nodes, and completed physiological information data remote transmission by EDGE mode or Ethernet. And health threshold value in the gateway is set, when the information collected exceeds the health threshold,the alarm will take place.Subject is tested in the laboratory,which includes communications between testing sensor node and gateway node, wireless data transmission of EDGE module and Ethernet communication on CS8900A.By testing, the system has achieved excellent result,and completed the desired target. This topic can meet the real-time, continuous, long time patient physiological information monitoring, it can be applied to the medical care and Motion detection fields.