Design of Clinic Patient Body Temperature Wireless Remote Concentration Monitor System Based on VI

According to disadvantages of long measurement time, low monitor precision, and difficulty in automatic monitoring patient body temperature, this paper introduces that temperature sensor DS18B20 is connected to realize distributed body temperature wireless remote concentration monitor system design. Low PC controller AT89C52 analyzes and processes measurement data, as well as drives display-alarm equipment to work. Through wireless transceiver chip nRF905 connection, system can complete measurement data wireless communication from lower PC to work central station, and connects upper PC with work central station by serial interface RS232, which the distributed clinic patient body temperature concentration monitor system is carried out. Our experiments show that system temperature measure error is less than plusmn0.1degC, and can realize alarm at monitor field in real-time. Upper PC installed visual instrument (VI) software LabVIEW can display each monitor point condition. System reaches medical clinic requirement well as expect, and when monitoring body temperature is beyond setting limit value, system will start alarm in time. This paper mainly introduces system structure, design principle, part of hardware and software design in detail.