Abstract: A health monitoring system based on power line communication was designed and implemented aiming at solving the problems such as theageing of the population,higher prevalence of chronic illness and difficult andexpensive to see a doctor.Using the acquisition terminal and power line communication module,the system collects patients' physiological parameters and sends them to the monitoring center management system.Then,the “Intelligent medical expert system”analyses the physiological parameters,and gives the results of diagnosis as wellas health care scheme.The paper introduces the overall system architecture,hardware and software design,describes the design of power line communication module and the development of “Intelligent medical expert system”.At the end of the paper,the results of application system were provided.The system offers a novel healthservice model for chronic disease patients with advanced information technology.Using the power line as transmission line,the system reduces the cost.This system can be used in family,community clinics and hospitalward for remote monitoring.

Key words: power line communication, health monitoring system, physiological parameters, intelligent medical expert system