Design and Realization of Distributed Wireless Telemedicine Monitor Center Based on Virtual Instruments

This paper presents a new model of distributed wireless telemedicine physiological monitor center, which is developed by the Laboratory Virtual Instrument Engineering Workbench (LabVIEW) and integrates general packet radio service (GPRS) technology and signal processing with DSP processor. At the patient's location, a wireless PDA-based monitor is used to continuously acquire the patient's vital signs, including heart rate, ECG, SpO2 and so on. Through the internet and LAN, the patient's physiological signals can be transmitted in real-time to telemedicine monitor central unit, and the unit can access the data and the case history of the patient to medicine database. This paper presents our prototype implementation of signal processing based on a high-performance DSP processor on distributed nodes. The nodes analyze the patient physiology signal data which transmits from the central server through the LAN and transmits the results to telemedicine monitor central through the LAN. The results of the designing also show that the wireless telemedicine physiological monitor center model is superior to the currently used monitors both in mobility and in usability, and, therefore, is better suitable for monitor patients under the state of activities.