| abstract |
An object, method, and system for detecting whether heartbeat or electrode contact is good are provided. In this system, a plurality of fabric electrodes are installed on a fabric, and an electrocardiogram equipotential diagram is used to take into account the interference caused by human body movement and set to a separate electrode structure. This system detects the heartbeat by the electrode position, area and conductor layout, and selects “whether the electrocardiogram signal is collected by the dry battery or the capacitively coupled electrode” by changing the environmental state. This system also detects whether the electrode is in good contact with the human body by measuring noise, body surface impedance, and muscle impedance. In addition, the human body posture and motion can be estimated from the electrocardiographic signal waveform and noise. [Selection] Figure 1 |