| In our country since the reform and opening up, the economy has been rapid growth inoverall national strength has increased steadily,living standards of people also significantlyincreased. Health concerns are not limited to the treatment of the disease, but more emphasison disease prevention and the rehabilitation process, the health surveillance is more and morethe concern of the community. Health care system can give an objective description of thephysiological state of the human body, a great help for the long-term observations of humanphysiological parameters on the prevention of chronic diseases and post-operativerehabilitation, Regular health surveillance need to visit the medical institutions, inconvenienceto the life and work of the masses. Remote health surveillance can effectively resolve thesecontradictions. In this study, the main front-end for remote health surveillance physiologicalsignal acquisition made the following work:First, learn about the research status of the remote health systems access to a part of therecent literature. By comparison of several wireless sensor network applications tocommunications technology, designed a new wireless short-range transmission technologyZigBee technology is the formation of a small range of short-range wireless communicationsnetwork.Second, the PC software designed by Visual Studio software,to designe a kind ofphysiological parameters observed with display interface, and the data saved in the hostcomputer software. The software design data show the principle of as accurate as possible,does not involve the collection to the digital signal processing and abnormal diagnostic alarm.Third, through study and research on the ZigBee protocol stack, the design ofphysiological acquisition sensor node, the special physiological sensors and ZigBee latestCC2530communication module integrated networking, wireless collection of physiologicalindicators. ZigBee module use OSAL embedded systems to build a star network topology, theacquisition of several important physiological indicators of a single individual network. Theacquisition network of remote health surveillance system provide a viable solution for the front of the physiological signal acquisitionCollection network of wireless physiological indicators of this study, only a singleindividual, complete the key ECG, blood oxygen, blood pressure, collection and transmission,do not do any processing of the data collected by the physiological sensor, in order to ensureits accuracy. ZigBee network topology is the simplest and most suitable for the system ofstar-shaped network. |