To Build Tele-care System Network Environment

Tele-care system has been regarded as one of important industry in the future. This study tends to integrate many functions in long-distance care system through the Web services. For instance, integrating wireless measuring instruments and information systems helps patients in hospitals or at home to have access to complete care. When patients rest at home or do activities outside, measuring instruments may monitor their basic physiological status through the wireless transmission equipment. If an exception occurs, measuring instruments may issue a warning signal to remind, or inform the relatives and friends and even health care centers through Internet automatically in order to save time. Moreover, when patients have to get in hospitals or process online interview, doctors may use the daily recorders to identify or discuss. This study uses physiological monitoring chips to measure status; now the chip can measure body temperatures, respirations and ECG physiological information. The final studies have shown questions of the hidden nodes, exposed nodes and access points. To simulate the experiment, this experiment used NS2 (Network Simulator Version 2) simulation software. As a result, the performance of network service nodes will be affected by the mode of nodes-operation.