| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system capable of ensuring comfortable relationship between a subject to be monitored and a monitor without giving the subject feeling of uneasiness or alienation.SOLUTION: When a transmitting/receiving unit 210 receives a request signal from a portable terminal 100, a control section 240 controls the portable terminal 100 to transmit a response signal, and transmit an acquisition notification signal which represents a fact that the portable terminal 100 has transmitted the request signal to a household electrical appliance 400 via a repeating device 300. When receiving the acquisition notification signal, the household electrical appliance 400 outputs a notification on a notification unit 430. |
