SENSOR FAULT DIAGNOSIS SYSTEM

PURPOSE: A failure diagnosing system for a door opening/closing detecting sensor is provided to regularly check an operation state of a sensor by remotely diagnosing a plurality of sensors mounted in a security system in a short cycle and to grasp a position of a faulty sensor. CONSTITUTION: A failure diagnosing system for a door opening/closing detecting sensor comprises magnet(10), a lead switch(20), electromagnet(30), a magnetic force controlling unit, a diagnosing unit(50), and a display unit(60). The lead switch is opened/closed correspondently to the magnet. The electromagnet offsets the power of a magnetic field of the magnet opening/closing the lead switch. The magnetic force controlling unit controls the power of the magnetic field. The diagnosing unit detects whether the lead switch is opened or not by offsetting the magnetic force of the magnet, thereby confirming whether a sensor is normal or not. The display unit displays the opening/closing of the lead switch.