目的 設計體積小、功耗低、便于攜帶的多床位無線心電監護儀。方法 采用以ARM920T
為控制器內核的S3C2410芯片作為系統控制核心，利用nRF401無線收發芯片實現心電數據的傳輸。系統采用Windows CE嵌入式操作系統作為軟件平臺開發監護軟件，實現對通信的控制和對心電信號的分析和處理。 結果 該監護儀能同時監護12個病人，實時性良好。 結論 該監護儀體積小，功耗低，便于患者隨身攜帶，在不影響患者日常活動的同時使患者得到較好的監護。采用多線程編程，可同時監護多個床位,提高了系統的整體響應速度和利用率。
關鍵詞：ARM9；Windows CE操作系統；便攜式多床位；心電監護
The design of Wireless Multi-patient Electrocardiogram Monitor Based on ARM9 Wang Ning-ning Zhao Qiu-sheng Wang Shen Li Guan (Department of Biomedical Engineering,Tianjin Medical University, 300070 ) Abstract: Objective To design a portable multi-patient wireless electrocardiogram(ECG) monitor with small volume and low power consumption. Methods S3C2410 which based on ARM920T was used as system controller,and wireless transmission chip nRF401 was used to transmit ECG data. The software was designed on WindowsCE embedded operating system,to control the process of transmission and the analysis and disposal of electrocardiosignal. Result The monitor can guard 12 patients at the same time and it's real time. Conclusion The monitor with small volume and low power consumption is convenient to take with patient and never influence their normal activities. Multithreading programming was used to monitor multipatients, which increased the whole response speed and advanced the efficient of the system.
Key Word：ARM9；Windows CE operating system；portable multi-patient；ECG monitor