遥测心电信号由于种种原因，易被噪声干扰，对ＥＣＧ信号频谱与干扰信号频谱混迭的情况，现有报道的检测方法不是效果不佳，就是计算量比较大，不适于应用实时处理。作者提出的一种基于差分值和Ｒ波的“检测静息期”的方法，经过临床数据的检验证明，是一种行之有效的检测方法。 Because of various reasons, telemetry ECG is easily disturbed by noise. In the case of aliasing between the spectrum of ECG signal and the interference signal, the detection methods reported in the prior art are not ineffective or have a large amount of calculation and are not suitable for application of real-time processing. The authors propose a method based on the difference value and R wave to detect resting period, which is proved by clinical data. It is an effective detection method.