A ECG Signal Gathering and Displaying System Based on AVR

[摘要] This article introduces a kind of system which is based on the AVR to acquire the data of ECG. Such system using the A/D function of ATmega8 chip and the lattice graph LCD to design ECG heart acquisition satisfies the demands above. This design gives a composition of hardware and programming of software about the system in detail which has mainly realized the real-time gathering, the amplifier, the filter, the A/D transformation and the LCD display. Since the AVR includes A/D transformation function and support embedded C language programming, it reduces the peripheral circuit, further more it also decreases the time to design and debug this system.

[发布机构] Basic Medical of Beihua University, Jilin; 132013, China^1;Jilin People's Congress, Jilin; 132000, China^2

[效力级别] 无线电电子学

[关键词] Atmega8;C language;ECG signals;Lattice graphs;LCD displays;Peripheral circuits;Real time;Transformation functions