研究一種監測人體心電異常信號、自動通過手機短信傳遞數據并報警的方法。分析了如何通過心電信號采集電路、單片機、接口電路、手機以及基于GSM的AT指令程序實現系統；采用局部極大極小值和斜率相結合的方法設計心率異常判斷程序；選用內部資源豐富的MSP430F449單片機，以滿足系統低功耗、體積小、使用方便的要求；提出的手動按鍵消除誤報警模型，使系統可靠性、實用性更好；借助廣泛使用的手
機作為無線模塊，使監護儀成本大幅度下降，使遠程心電監護更易于推廣應用。通過與常規心電圖儀對照實驗，結果表明心率計算的準確率達到病房監護的實用要求；沒有出現報警錯誤。實驗證明該方法可行。
關鍵詞：心電監測；遠程心電報警；GSM 短信息
Abstract: Researching a method to monitor the electrocardiogram signal abnormity
and give an alarm automatically though short information of GSM mobile telephone.
The article analyzed how to make up the system by electrocardiogram signal circuit,
single chip, mobile telephone, interface circuit and the GSM-SMS-AT program. The
system adopts the combinative method of local maximum, local minimum and slope to
judge cardiogram abnormity; selects inner resourceful MSP430F449 single chip to
meet the system demand for low power consume, small volume, using convenient. The
model of cancel button can avoid misinformation alarm. Thus, the system reliability
and practicability is better. By dint of the abroad using GSM mobile telephone not
expert wireless module，the cost of monitor drops more. It is convenient for home
monitor of cardiogram. Control experiment with general electrocardiograph, the
result indicates the system meets the request of sickroom wardship and no
misinformation alarm. The experiment proves the method is doable.
Key words: electrocardiogram monitor，remote electrocardiogram alarm，GSM-SMS