Network cooperation-based low power type charged broadcasting set-top box and controlling method therefor

A set top box power management device for controlling a set top box based on network cooperation, the device comprising:

• a database which stores operation status information for one or more set top boxes on the network;
• and
• a set top box power management unit which interworks with the set top box to periodically exchange a message, periodically transmits the control message to the set top box in accordance with a generation cycle of the control message, receives a message on the operation status of the set top box which is periodically transmitted by the set top box in accordance with a message generation cycle set in accordance with the control message to manage the operation status information for the set top box by the database and monitor the operation status of the set top box in accordance with the control message,
• wherein when the set top box power management unit does not receive the message on the operation status of the set top box corresponding to the current operation mode of the set top box at a time when the generation cycle expires, with reference to the database, or another event occurs, the set top box power management unit transmits a message for shifting the operation mode to the set top box.

A set top box based on network cooperation, comprising:

• a timer;
• and
• a power management unit which interworks with a power management server on a network to periodically exchange the message and periodically transmits a message on the operation status of the set top box in accordance with a message generation cycle set in the timer in accordance with a control message received from the power management server,
• wherein the power management unit includes a timer setting block which sets the message generating cycle to the timer in accordance with the control message;
• and
• a power control block which controls the power device for the mode, in accordance with a message for shifting a transmitted operation mode, when the power management server, which receives a message on the operation status of the set top box to manage the message in the database, and monitors the operation state of the set top box in accordance with the control message, does not receive a message on the operation status of the set top box corresponding to the current operation mode of the set top box when the generation cycle of the control message expires or another event occurs.