As mentioned, dormant commodities or computer
peripherals might lead to appreciable power
consumption. The problem can be mitigated by
having such devices plugged into our wireless outlets to exercise electricity power control.
Sockets on wireless outlets can take on masterslave
relationships to differentiate between
active and passive roles of entities. An application
is shown in Fig. 6, assuming that sockets C
and D are bound to A (master); that is, the electricity
of C and D is turned off unless A supplies
current to the plugged-in laptop computer.
Observe that peripherals socketed into C and D
operate subject to the laptop at A. Therefore,
we let both C and D shut off power supply to
these peripherals, thus preventing standby power
consumption, when the laptop host is switched
off or in power saving mode. This entails our
wireless outlet telling whether or not the host is
consuming power normally.