Traditional bedside monitors near the patient have auxiliary outputs that are connected by wires for remote patient physiological and alarm signals. All of the beds must be monitored from a single monitor placed near the patient. This would not be cost-effective. For this purpose a radiotelemetry system patient monitor was designed and realized to provide multi-signal transfer in the room of the hospital at the same time, Various signals are linearly mixed by FM-FM modulation. The radio frequency modulation of the UHF band that employs a digital communication system offers outstanding advantages over analog system such as noise immunity and ease of signal processing. This can be considered as FM-FM-FSK modulation.
展开▼
