| 摘要 |
The blood pressure measuring device comprises a main device 1 , and a separate device 2 capable of being used separately from the main device 1 . The main device and the separate device have a wireless communication means 11 and 12 , respectively. At least one device of the main device and the separate device has a power switch, and one device having the power switch is activated when the power switch is operated, and then the one device transmits a start signal to the other device by the wireless communication. The other device shifts periodically from a power-off state to a power-on state on its own when in the power-off state to check the start signal, and it is activated if it receives the start signal when it shifts to the power-on state. The one device transmits the start signal continuously over a period longer than a period during which the power switch is operated to activate the one device. |
