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Design of Palm ECG Monitor Based on the Platform of Pocket PC and Bluetooth Technology

Author: LiuXinTian
Tutor: XiaoJun
School: Northeastern University
Course: Theory and New
Keywords: ECG Heart Monitor Lead Blooth Pocket PC
CLC: TH772.2
Type: Master's thesis
Year: 2009
Downloads: 68
Quote: 0
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Abstract

Cardiogram signal is one of the bioelectric signals that has been firstly researched and applied to clinic. This signal is easier to detect and has intuitive regularity)So it is still the important research topic in biomedical engineering. The heart attack happens all abruptly, transiently and dangerously, so there is a need to monitor the patients’cardiogram in a long-term to make timely rescue and disease forecast. Currently, the medical resources are still very limited in our country. Remote health care as well as community nursing are the effective solution to this problem. Therefore, the portable cardiogram monitor has a wide application prospects.The cardiogram monitor discussed in this article is a 12-lead wireless remote cardiogram monitor system, which is able to dynamically monitor the patient’s cardiac condition 24 hours and record dynamic cardiogram data and immediately send to the cardiac monitoring center of the community or hospital. Meanwhile, the device is compact, highly intelligent, reliable and low cost. The operations associated are convenient. Most clinic cardiac information required can be acquired.The device adopts detachable structure, including two parts, a 12-lead synchronous cardiac signal acquisition box and a platform of Pocket PC cardiac monitoring platform.The 12-lead Synchronous cardiac acquisition box is mainly used to synchronously collect the human body 12-lead cardiac data, wirelessly send to the cardiac monitoring platform of Pocket PC through Bluetooth. The cardiac data acquisition unit of the cardiac monitor collects the 12-lead synchronous cardiac data through. It connects the human body through the electrodes on human body surface and standard 12-lead wire, and send the cardiac signals to analog amplifying circuit. STM32F103RCT6 has eight A/D input, synchronously sampling eight channel cardiac signals from front-end analog circuits. Then, calculate the 12-lead cardiac signals,Ⅰ、Ⅱ、Ⅲ、aVR、aVL、aVF、V1、V2、V3、V4、V5、and V6, according to the formula. The cardiac data is sent to the Pocket PC through Bluetooth. The Pocket PC is used to display and store the data. In this article, within the environment of Microsoft Visual Studio 2008+Windows Mobile 5.0 Pocket PC SDK, the development team use C# programming language to develop Pocket PC cardiogram monitor platform to display the real-time cardiac data, and also analyze data intellectually. The information to be analyzed include heatstroke sum、maximum heart rate、minimum heart rate、ventricular extrasystole、supraventricular extrasystole and so on.Nowadays the Pocket PC functions are very powerful, while the cardiac monitor system described in this article only takes advantages of two functions of Pocket PC, wireless Bluetooth transmission and display/storage. Along with the improvement of technology, more effective with more similar functional ECG monitor system can be development based on this system.

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