Method, device, and computer program product

A power supply device comprising:

• a plurality of power supply ports;
• a plurality of loads coupled to power supply ports;
• a power measurement circuit configured for measuring an output power of each of the plurality of power supply ports;
• a determining circuit configured for determining, based on communication between the power supply device and the coupled loads through corresponding communications ports, that power supplied to an increasing load increases by a target value;
• a record circuit configured for searching for a power supply port whose output power increased by the target value, and obtaining and recording a correspondence between a power supply port coupled to the increasing load and a communications port coupled with the increasing load;
• and
• a processor configured for managing, based on the correspondence and the communication between the increasing load and the communications port connected to the increasing load, the obtaining of power by the increasing load from a corresponding power supply port.

A computer program product comprising computer-executable instructions stored on a non-transitory computer-readable medium that, when executed by a processor, cause a power supply apparatus to:

• measure an output power of each of a plurality of power supply ports;
• determine, based on communication between the power supply apparatus and a plurality of loads coupled to the power supply ports through corresponding communications ports, that power supplied to an increasing load increases by a target value;
• search for a power supply port having an output power increased by the target value;
• obtain and record a correspondence between a power supply port coupled with the increasing load and a communications port coupled with the increasing load;
• and
• manage, based on the correspondence and communication between the increasing load and the communications port coupled with the increasing load, an obtaining of power by the increasing load from the power supply port connected to the increasing load.