| 摘要 |
<p>The present invention relates to a power controller for at least one piece of external equipment, the power controller being connected to the external equipment. The power controller includes a main unit (203) for transmitting an external equipment status checking request signal, required to detect an abnormality of the external equipment, to the external equipment at preset regular intervals or at a preset time point, determining that an abnormality has occurred in the external equipment when an abnormality is present in an external equipment status checking signal received from the external equipment in response to the external equipment status checking request signal, or when no external equipment status checking signal is received, and consequently transmitting a power reset request signal to an expansion unit (201). The expansion unit (201) resets power of the external equipment in response to the received power reset request signal.</p> |
