Abstract: A power control system includes a socket module inserted into a wall socket, and a remote control module electrically connected to a switchable socket. The socket module provides mains electricity from the wall socket to an electric device connected thereto upon receiving a power-on signal, and does not provide mains electricity upon receiving a power-off signal. The remote control module is charged by mains electricity from the switchable socket that is in a conductive state, and operates with electricity stored therein to wirelessly transmit the power-on signal when the switchable socket is switched to the conductive state and to wirelessly transmit the power-off signal when the switchable socket is switched to a non-conductive state.

Abstract: A sensing module for sensing a position of a door panel includes a sensing unit, a processing unit, and a radio frequency transceiving unit. The sensing unit is disposed in a cavity for receiving a bolt of the door panel, detects a variation in magnetic field attributed to the bolt, and outputs a sensing signal indicating the variation in magnetic field detected thereby. The processing unit is electrically connected to the sensing unit to receive the sensing signal from the sensing unit, determines whether the position of the door panel is an open position or a closed position based on the variation in magnetic field and predetermined magnetic field information, and generates an informing signal indicating the position of the door panel.