| The paper discusses the characteristics of infrared communication and its application in the record and analysis of bio-electrical signal. Based on it, an ECG telemetry system with infrared rays as the medium is designed. It collects ECG data by micro single-chip, transfers them to PC through RS-232 serial communication and analyzes them in PC. The system can be used to monitor the subject's ECG and detects several kinds of abnormal ECG. It has functions of displaying, storing, analysis result presenting and printing. It is a profitable attempt in the clinical monitoring application of the infrared telemetry. It can also be used as house monitor device.The system is consist of hardware and software .From its content, it is also can be divided into ECG signal collection and ECG data infrared serial communication and ECG data detection and analysis. The hardware is composed of data collection and magnification and data communication. The hardware presents the hardware system construction and parts using and infrared communication knowledge and frame format.The software is composed of data collection and interface of communication and ECG data detection and diagnosis. The software presents the data collection setting and infrared communication design and baseline drift suppression and SOHz interference elimination and ECG character point detection and the method of diagonsis. |