| The device for undamage detecting the effects of anti-motion sickness drug is a necessary medical instrument in spaceflight, which is very important to analyze the influence of anti-motion sickness drug. However the data communication wire leads the bad removability, and not convenient for experimental study. Compared the main four kinds of short distance wireless communication technology and external device interface of PC, the paper brought forward the scheme of replacing the wire with Bluetooth and USB technology between the control PC and acquisition microcomputer, which commendably solved the problem of data communication in the revolving biology model.The thesis introduced realization principle of wireless communication and USB interface system based on the Bluetooth and USB technology theory, completed the design of hardware and software of system with the RF transceiver chip NRF2401 and micro-controller CY7C68013, which is composed of data wireless transmission baseband controlling and USB communication, expounded in detail the design of RF model, baseband circuit power supply and RAM extension etc, of firmware by 9 program files with modularization, downloaded the executive file into the hardware through EZ-USB PANNEL, and debugged the system. It is indicated by practice that the system is characteristic of low cost, small shape, thinner radiation and easy to upgrade.The research paper is sponsored by the Aviation Science Foundation of China (041153036) and Horizontal Subject (N3EK1017) . |
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