目的 設(shè)計(jì)體積小、功耗低、便于攜帶的多床位無(wú)線(xiàn)心電監(jiān)護(hù)儀。方法 采用以ARM920T
為控制器內(nèi)核的S3C2410芯片作為系統(tǒng)控制核心，利用nRF401無(wú)線(xiàn)收發(fā)芯片實(shí)現(xiàn)心電數(shù)據(jù)的傳輸。系統(tǒng)采用Windows CE嵌入式操作系統(tǒng)作為軟件平臺(tái)開(kāi)發(fā)監(jiān)護(hù)軟件，實(shí)現(xiàn)對(duì)通信的控制和對(duì)心電信號(hào)的分析和處理。 結(jié)果 該監(jiān)護(hù)儀能同時(shí)監(jiān)護(hù)12個(gè)病人，實(shí)時(shí)性良好。 結(jié)論 該監(jiān)護(hù)儀體積小，功耗低，便于患者隨身攜帶，在不影響患者日?；顒?dòng)的同時(shí)使患者得到較好的監(jiān)護(hù)。采用多線(xiàn)程編程，可同時(shí)監(jiān)護(hù)多個(gè)床位,提高了系統(tǒng)的整體響應(yīng)速度和利用率。
關(guān)鍵詞：ARM9；Windows CE操作系統(tǒng)；便攜式多床位；心電監(jiān)護(hù)
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