Research On Life Features Information Transimission Base On Wireless Sensor Network

Nowadays, the development of new technology has altered with each passing day. Health Professions which are closely related to the health of the public has entered information control stage. In order to achieve thorough medical evaluation of patients, medical devices should collect and process vast amounts of information, during diagnosing, treating and medical monitoring. The applications of PROFIBUS and Ethernet realized Web-based cable system networking, and improve the system performance and openness. However, the cable networks are only able to transport data along one-dimensional line, transmission needs of conductor medium, which has inevitably disadvantages of damaging buildings, a waste of interfaces, maintenance and extension difficulties. Many devices also require flexibility and mobility under specified cases. To this end, wireless sensor networks have emerged. This paper presents a life characteristics of information transmission design which based on wireless sensor networks .First, the research and application for wireless sensor networks was presented, the prospects of current popular short-range wireless data network technology is discussed, analyzed the wireless network structure and network topology, and proposed the design of wireless sensor networks which based on SimpliciTI.Second, according to application requirement, the paper provides the wireless sensor network hardware platform design. The platform is with the core of TI's LM3S1138 chip, CC1100 for wireless as communication module. Adopting temperature sensors and pulse acquisition circuit, to achieve wireless network hardware design for a number of physiological parameters measurements.Finally, with modular design, implement software design for wireless sensor network. This section includesμC/OS-II main program structure, LM3S1138 chip control program, AVR chip control program, CC1100 sending and receiving procedures and the PC interface for programming, making the system with the capacity for automatic measurement of temperature and pulse.Through software and hardware synthesis debugging, successfully achieved the wireless transmission of a number of physiological parameters information. This paper presented wireless transmission of biometric information which is based on embedded platform, has good reliability and flexibility, provided reference to the extension of short-distance wireless communication network and embedded systems applications, and will have bright prospects.