Design Of Human Body Blood Oxygen Signal Monitoring System Based On Zigbee

The paper designs the system based on Zigbee technology in human blood oxygen signalmonitoring. And makes depth analysis and research in the specifications and protocol stack ofIEEE802.15.4/Zigbee. It focus on the point-to-point transparent transmission and the methodof tree-shaped network. Based on the CC2430of wireless microcontroller in Zigbeetechnology, it designs and realizes the wireless haedware circuit. The hardware module ismainly composed of two parts of oxygen data acquisition module and wireless transmissionmodule, in which the oxygen data acquisition module named CSN604making from thecompony of chaosi; the wireless transmission module completing the wireless communicationbetween nodes.The wireless transmission module includes transceiver module, power module,power level and converter module. The system completes the design of PCB about wirelessmofule in final. Combining the characteristics of the hardware circuit and the entire systemfunctional requirements, the research develops the host computer software and Lowercomputer software.The lower computer software includes the design about point-to-pointbrilliance transmission, coordination node and terminal node software, the host computersoftware uses C++to write, and realizes the function of data acquisition and processing,real-time curving and data preservation.The CC2430control unit pretreatment the oxygen signal by the analog circuit, and thexoygen signal is collected by oxygen sensor. and then converted to digital signals in order totransmission to the control and display unit., and then carry on processing and display. At thesame time the data is sended to the host computer through Zigbee wireless communicationunit, and displaying the data and waceform in real-time by the host computer.The experimental results show that this system can collecte the oxygen signal in realtime, and it can make real-time, secure, reliable communications through Zigbee wirelessnetwork.The detection system can use the Zigbee wireless communication technology. It cancollects oxygen data through the wireless terminal carryed in body, and makes the acquisitionsystem with mobility. Therefore it can widely applied in the field of health campaignmonitoring, hospitals, the mobile monitoring and so on.