Design and Construct Miniaturized Biosensor/Transmitter System

摘要

We devised a set of sensors for the vital signs of troops with each sensor providing radio transmission to a personal receiver unit. Device prototypes were constructed as application-specific integrated circuits (ASICs), each containing a radio transmitter of 1-2 meter range, termed 'telesensors'. A telesensor chip for body temperature was fabricated and demonstrated to transmit temperature with an accuracy of 0.1 deg C using spread-spectrum radio transmission. Wireless pulse-rate signals were also demonstrated. The body-temperature telesensor is sufficiently small (3 mm X 3 mm) to fit within the ear canal. The chip developed needed external components which could only be eliminated with further work. Benchtop systems for blood-pressure and respiration were demonstrated with wireless radio transmission. The receiver unit is composed of discrete components and interfaced to a laptop computer. A receiver with long-range transmission was unfinished.