Sensing module

A sensing module for sensing a position of a door panel that includes a lock having a bolt and that is mounted to a door frame formed with a cavity for receiving the bolt, said sensing module comprising:

• an antenna;
• a sensing unit configured to be disposed in the cavity, and to be activated to detect a variation in magnetic field attributed to the bolt and to output a first sensing signal indicating the variation in magnetic field detected thereby;
• a processing unit electrically connected to said sensing unit, and configured to periodically output an enablement signal to said sensing unit so as to activate said sensing unit, to receive the first sensing signal from said sensing unit, to determine whether the position of the door panel is an open position or a closed position based on the variation in magnetic field indicated by the first sensing signal and on predetermined magnetic field information, and to generate a first informing signal indicating the position of the door panel determined by said processing unit;
• a radio frequency transceiving unit electrically connected to said processing unit for receiving the first informing signal, and configured to, upon receipt of the first informing signal, output a first radio frequency signal according to the first informing signal;
• and
• a filtering unit electrically connected between said antenna and said radio frequency transceiving unit, and configured to receive the first radio frequency signal, and to, upon receipt of the first radio frequency signal, filter the first radio frequency signal to obtain a first filtered output signal to be output through said antenna as a first radio frequency output signal.