The Research Of Collection And Compress System Of Human ECG Signal

The collection and compression system of ECG signal is one small-scale ECG administrative system. The characteristic with high-fidelity, high dependability of ECG signal gathered , can store and show through the computer , For the doctor to monitor real-timly, and pay close attention to the patient's health in time, in order to prevent and treat effectively.System is made up of two parts of hardware and software, hardware part include ECG signal receive, enlarge and filter circuit and gather circuit two parts among them,Design ISA and PCI two bus collection card of form separately; Software part include and can programme and run side by side 8255 interface and CPLD and interface software design of AD574A, Using interrupt way to design the software of data collecting, and realization of data compress, and software design of administrative system.Hardware part want function that realize: Gather ECG signal of the human body through electrode, through enlarge circuit change signal that can be discerned, then through collecting card convert analog signal to digital signal, and last, send them into computer. For the follow-up treatment.Software part want function that realize: Through interrupt service routine gather and come out regularly ECG signal, store among computer in the form of the binary scale; Data compress programme should realize to ECG signal pretreatment and compress of signal, Narrow the storing amount of the data, save the space; Case information management system realize patient information and heart telecommunication file of interest, Keep and in the data base, can show the ECG signal wave form at the screen of the computer directly data that gather. Andhas offered and type and report the single function.