| 摘要 |
<p>A power management system for use in association with desktop computers and like equipment powered from a mains supply, comprises: a monitor for monitoring Input/Output activity on the computer; a device for generating a time-out signal due to the absence of Input/Output activity during a predetermined period of time; a device for storing user-selectable criteria determining the response of the system to said time-out signal; a device for generating a data signal at an external interface port of the desktop computer based on said stored criteria and the presence of the time-out signal; and an external power supply device, comprising a power inlet for connection to the mains supply, a plurality of power outlets for supplying power to the desktop computer and associated peripheral equipment, controllable switches associated with each power outlet for selectively connecting and disconneting the power supply thereto in response to a control signal, an interface connectable to the external interface port for receiving said data signal therethrough, and a processor responsive to the data signal to generate the control signals for the controllable switches associated with the power outlets in accordance with the stored user-selectable criteria. The system can result in substantial energy savings due to the reduction in wasted energy caused by computers being left on while unattended.</p> |
