Design And Implementation Of The Detection And Transmission System For Physiological Information Based On Zigbee

Now, most of the physiological information gathering systems are based on monitoring of wards and most of the medical care systems take the traditional wiring methods. However, with the rapidly development of medical monitoring technology and the all-round, high-quality communications requirements in the information society, medical care and communication have become increasingly in-depth, which also contribute to the continuous improvement of medical care capabilities and the continuous improvement of practicability. Therefore, the research on the stability and reliability of wireless transmission for the data of physiological information monitoring system is necessary. ZigBee technology is a wireless sensor network technology which is specially designed for the short distance communication and has low-cost, low-power and low rate characters. In recent years, it develops rapidly and is increasingly used in military, environmental monitoring and forecasting, space exploration, health care, urban transportation, large-scale industrial parks and other areas of safety inspection. Research about physiological information monitoring and transmission based on ZigBee is also increasingly attracting people's eyes.This article designed and implemented a wireless transmission system based on Zigbee technology for collecting data of physiological information. Hardware C8051F340 was chose as the MCU and the RS-232 general-purpose serial interface and external memory parts were external extended. Also a RF chip UZ2400 based on ZigBee technology was used as the core of wireless sensor network node, and regulator modules for this system were designed. In software part, the ZigBee communication protocol was achieved and the designing and debugging of physiological information transmission system based on ZigBee technology were completed.This paper uses three kinds of physiological information collection modules, the blood oxygen saturation, ECG and blood pressure, to conduct real-time monitoring on testers. And then collect the data for wireless transmission. The results show that the wireless sensor network technology based ZigBee technology can be very stable in real-time transmission of required data.