Research And Implementation Of The Information Interactive System Based On Multi-human Medium

The information interactive system based on human medium is a two-way data interactive system based on intra-body communication. Compared with general wireless communication system, which has some advantages like low power consumption, anti-interference performance, high speed and so on, meanwhile it can achieve information interactive through more human bodies, as well as the human body and the environment by shaking, physical contacting and so on. Therefore, the information interactive system based on human medium have important applications in short-distance data communications, human-computer interaction, Personal Area Network, smart home system and other fields.This thesis mainly focuses on the research and the implementation of the information interactive system based on human medium, which include mathematical modeling and simulation, the design of software and hardware, Physical experiment validation. The main works of this thesis can be described as follow:(1) The mathematical modeling of the information interactive system based on human medium completed. The circuit model of the galvanic coupling intra-body communication based on multi-layer tissue of human is established, further derive the mathematical model, and then the Accuracy of which is carried out by physical experiment.(2) The hardware design of the human body medium information interactive system based on FPGA is completed, which include the Function analysis and selection of the control and display module, the signal processing circuit of the emitter and receiver, the communication electrode. And through which the function of the signal coupling, amplification, shaping and detection is achieved.(3) The software program of the human body medium information interactive system is completed, which include the module of interactive trigger and information interactive. And through which the function of the pulse sequence detection, two-way asynchronous communication, signal sampling and storage, control and display of LCD is achieved.(4) The experimental devices of the human body medium information interactive system based on FPGA is established, achieve the information interactive based on multi-human medium, and then the Main performance of which is verified.This thesis mainly focuses on the research of the information interactive system based on human medium, and the experimental devices the information interactive system based on FPGA is designed, achieve the information interactive based on multi-human medium, which lays a foundation for the information interactive of low power consumption, anti-interference performance and high speed through more human bodies, as well as the human body and the environment.