Development of a micro-monitoring system based on the liquid crystal display

摘要

objective: To introduce the development of a portable multi-parameter monitoring system. Methods: Using signal detecting and data processing techniques, this monitor with a graphic liquid crystal display (LCD) and a single-chip microprocessor 8Xc196Kc can dynamically measure electrocardiogram(ECG), breath wave, blood pressure (BP), breath frequency (BF), heart rate (HR) and body temperature (BT) in real-time. Results: This monitor can dynamically display the ECG, breath wave and other parameters in real time. It can also provide a 24h trend graph for each measured parameter and exchange data, through the serial communication interface (RS232), with the PC or hand-held PC (HPC). Conclusions: This portable monitoring system has a man-machine interface friendly. It is capable of performing continuous monitoring and also used as terminal of a central monitoring system or a tele-monitoring system.