Wireless transmission of the biological signals

In this study, 4 channel biotelemetry device was designed and implemented formonitoring physiological signals of the patients at indoor. Body temperature,respiratory rate, heart rate, electrocardiogram (ECG) and electromyogram(EMG) signals were measured and transmitted as wireless using 10mW433MHz and 500mW 868MHz FM/FSK transmitter with 9.6Kps transmissionspeed at industrial scientific medical (ISM) band. At indoor, receive signalstrength indicator (RSSI) levels were measured and compared with each otherat 433MHz and 868MHz carrier frequencies. The placement of repeater atindoor was decided as a result of RSSI measurement.Science Code : 704.3.032Key Words : Multichannel, Biotelemetry, Repeater, ISM, RSSIPage Number : 92Adviser . : Prof. Dr. Nihal Fatma GÜLER