translation.en: Once he stepped onto the floor and out of the bed, the pressure sensor would detect an increase in pressure caused by body weight and then wirelessly send an audible alert to the caregiver's smartphone.
translation.zh: 当他下床着地的时候 传感器就能检测到由于爷爷体重造成的一股上升的压力 并能无线传输警报信号给看护人的手机