A portable monitor system for biology signal based on singlechip

Qiaoling Tu; Jianhua Guo; Li He; Xia Xu

doi:10.1117/12.664335

20 February 2006 A portable monitor system for biology signal based on singlechip

Qiaoling Tu, Jianhua Guo, Li He, Xia Xu

Proceedings Volume 6041, ICMIT 2005: Information Systems and Signal Processing; 60411G (2006) https://doi.org/10.1117/12.664335
Event: ICMIT 2005: Merchatronics, MEMS, and Smart Materials, 2005, Chongqing, China

Abstract

The objectives of the paper are to improve accuracy of the electrocardiogram and temperature signal, improve the system stability and the capability of dynamic response, and decrease power consumption and volume of the system. The basic method is making use of the inner resource of the singlechip, such as the exact constant-current source, hardware multiplier, ADC, etc. The model of singlechip is MSP430F449 of TI (Texas Instruments). A simple integral-coefficient band-rejection digital filter was designed for analyzing the electrocardiogram signal. The deviation of temperature coming from the degradation of battery voltage was compensated for. An automatic discharge access was designed in the circuit to improve the capability of dynamic response of circuit. The results indicate that the 50 Hz power frequency interfering and the baseline drift are filtered, the figure is clear, the accuracy of temperature is 0.03°C, and the consumption current is less than 1.3mA. The system can meet the requirement in ward monitor and surgery monitor.

Citation Download Citation

Qiaoling Tu, Jianhua Guo, Li He, and Xia Xu "A portable monitor system for biology signal based on singlechip", Proc. SPIE 6041, ICMIT 2005: Information Systems and Signal Processing, 60411G (20 February 2006); https://doi.org/10.1117/12.664335

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