Abstract: Provided is a service system notifying dangerous situation through a mobile terminal and a set-top box. The service system notifying dangerous situation according to the present disclosure includes a protected person side set-top box, a protector side set-top box, and a service providing server which controls the protector side set-top box and/or a protector side mobile terminal to provide a notification message corresponding to a danger signal to a protector when a danger signal regarding occurrence of a dangerous situation of a protected person is received from the protected person side set-top box and/or a protected person side mobile terminal.

Abstract: Disclosed is a monitoring and terminal control system through a linkage between a mobile terminal and a set-top box. A monitoring and terminal control system according to the present disclosure includes a protected person side set-top box which is installed at a protected person's home and communicatively connected to a protected person side mobile terminal when the protected person side mobile terminal is located at the protected person's home; and a service providing server which monitors a state of the protected person side mobile terminal when the protected person side mobile terminal and the protected person side set-top box are communicatively connected and controls the protected person side mobile terminal and/or the protected person side set-top box according to the monitoring result.