The researcher development an telemedicine system for PCG based on telephone. The system mainly comprises of three modules: Portable PCG monitoring instrument, telephone communication network and hospital monitoring center.
The portable PCG monitoring instrument is used for heart sound signal capturing, processing and analyzing. This instrument is consist of five functional parts: piezoelectric heart sound sensor, heart sound signal pre-processing module, laptop computers, printer and heart sound signal processing software. The hospital monitoring center established a PCG database server. And the PCG database system is developed via SQL server 2000 software, applying VC + + 6.0 programming software to implement database access.
The remote PCG monitoring system is as safe as using a stethoscope, low-cost, and is able to combine with other cardiac function evaluation methods for synthetically analyzing the measured results.