Pages 127-128
The objective of this paper is to present the development of a LonWorks network based cardiorespiratory monitoring system for twenty-four hours vital sign measurement. A belt sensor is developed, which could be worn by the patients without or few restraint so that their health conditions can be monitored twenty-four hours a day. The belt sensor consists of conductive fibers, a Polyvinylidene Fluoride (PVDF) and a condenser mike so that the signals of ECG, pulse, breathing, cardiorespiratory sound can be measured. The sensors' outputs are filtered, amplified and converted to digital signals by a telemedicine device. The recorded signals can be also transmitted to a computer through RS232,the digital wireless communication link, and the LonWorks Network. Therefore the patient state can be analyzed continuously and remotely. Any trait of abnormal health state and possible accidents is promptly detected by analyzing the data. This telemetry system is particularly useful as a telemedicine device for the elderly care of neonates or infants. Detailed descriptions of the hardware and the software of system were presented in the paper.
