On-board touch screen graphical interface design for SoC-based arrhythmia detector

W. Y. Chia, Tze Weng Ow, N. Ramli, Suhaila Isaak, Y. Hau
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Abstract

Heart monitoring system is a device to carry out electrocardiogram (ECG) test. It can diagnose human's heart either in normal or abnormal condition based on ECG analysis. However, most of the current ECG device is bulky, expensive and lack of a user-friendly graphical user interface (GUI) for user interaction. This paper describes an on-board GUI design based on capacitive touch-screen Liquid Crystal Display (LCD) display. It is integrated with the in-house design of ECG processing unit and arrhythmia classifier to form a complete System-on-Chip (SoC) based arrhythmia detector. The whole system is implemented on the Altera Video and Embedded Evaluation Kit with Multi-Touch (VEEK-MT) FPGA development board. The touch screen GUI acts as a front-end menu to capture user input and retrieve the offline ECG data stored in external SD card, as well as back-end result display in terms of arrhythmia classification result, ECG raw signal display, and R-R interval. Prototyping result shows that this system is light-weight, cost-effective and suitable to be user for different groups of user according to their knowledge background, including patient, nurse, physician and cardiologist.
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基于soc的心律失常检测器的车载触摸屏图形界面设计
心脏监测系统是一种进行心电图检测的设备。它可以根据心电图分析来诊断人的心脏是否处于正常或异常状态。然而,目前大多数心电设备体积庞大,价格昂贵,缺乏用户友好的图形用户界面(GUI)进行用户交互。介绍了一种基于电容式触摸屏液晶显示器的车载图形用户界面设计。它与内部设计的心电处理单元和心律失常分类器集成在一起,形成一个完整的基于片上系统(SoC)的心律失常检测器。整个系统在Altera Video and Embedded Evaluation Kit with Multi-Touch (VEEK-MT) FPGA开发板上实现。触摸屏GUI作为前端菜单,捕捉用户输入并检索存储在外接SD卡中的离线心电数据,以及后端结果显示,包括心律失常分类结果、心电原始信号显示、R-R间隔显示。原型设计结果表明,该系统重量轻,性价比高,适合不同知识背景的用户群体使用,包括患者、护士、医生和心脏病专家。
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