A monitoring device (10), comprising: a first obtaining module (100) configured to obtain an electrocardiogram signal within a target detection period of time when the target detection period of time elapses; a processing module (101) configured to obtain the electrocardiogram signal from the first obtaining module (100), generate an electrocardiogram signal waveform template according to the electrocardiogram signal, and obtain a target waveform analysis result and/or a target parameter feature result according to the electrocardiogram signal waveform template; and an output module (102) configured to output prompt information according to the target waveform analysis result and/or the target parameter feature result. Meanwhile, also disclosed are a corresponding monitoring method and apparatus, and a computer readable storage medium.
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