An electronic lock device according to one embodiment includes a first magnetometer, a second magnetometer, a dynamic ferromagnetic component positioned between the first magnetometer and the second magnetometer, a processor, and a memory comprising a plurality of instructions stored thereon that, in response to execution by the processor, causes the electronic lock device to read sensor data from the first magnetometer and the second magnetometer, modify the sensor data to generate compensated sensor data that compensates for magnetic noise generated by the dynamic ferromagnetic component, and determine whether the door is in a closed state or an open state based on the compensated sensor data.

A sensor system to reliably alert and inform a user of the status of a window, in particular, a sensor system which reliably informs the user if the window is both in a closed position and also that the locking mechanism is in the locked configuration. There are thereby provided two independent sensor systems within the casement window handle assembly which are arranged to verify that the window handle is in the locked configuration and also that the window sash is in the closed position relative to the window frame. The casement window handle assembly comprises a first sensor for indicating the position of the window handle and this comprises a first sensor component mounted to the pivotal/movable handle and a second component fixed within the mounting base.

Proposed invention is an alarm device for protecting various type of locks of premises, buildings, apartments, rooms, vehicles, safes, money terminals and for other objects by means of timely, more early informing, interaction with alarm system or digital-electronic device of persons observing protected object in result of attempts of burglary, unauthorized opening, damaging or even preliminary studying the lock by attacker.

A magnetic anti-theft device, includes: a control circuit, in connection with a plurality of magnetic sensors and a control unit; the plurality of magnetic sensors, allowing different magnetic induction strengths to be preset; and an unlock piece, configured with a plurality of magnetic elements corresponding to the magnetic induction strengths of the plurality of magnetic sensors, whereby, when the correct unlock piece is placed on the magnetic sensors, the plurality of magnetic sensors will induct correct magnetic forces, the control unit is driven to release a monitoring state after interpretation of the control circuit; if the induction is incorrect, the control unit is driven to form a warning action after the interpretation of the control circuit so as to achieve an anti-theft effect and increase safety effectively probably because the magnetic force of the magnetic element of the unlock piece is too small or too large.

The disclosure relates to a closure system, comprising a locking arrangement, in particular a rotary latch arrangement for controlling a display device such as a LED module, comprising a sliding shoe, which is to be placed on the locking tongue of a rotary latch mounted in a door, for running onto a sliding ramp supported by the door frame, wherein said sliding shoe includes a housing with a recess for the insertion of alternatively a magnet or a magnetic field sensor acting in a contactless manner.

A playpen door, including a door frame; a door body movably mounted on the door frame; and a detection assembly mounted on the door frame and the door body and configured to detect open or closed state of the door body. The door body is hinged to the door frame. A locking assembly is arranged between the door body and the door frame. The locking assembly may be opened by a switch. The detection assembly is mounted away from a position where the door body is hinged to the door frame. When the door body rotates relative to the door frame, the detection assembly may be triggered, at which time the door body may be sensed to be open. When the door body returns to the closed position again after opening, the detection assembly may be triggered, at which time the door body may be sensed to be closed.

A deadbolt lock status sensing assembly for monitoring status of a deadbolt member of a deadbolt assembly on a door may include a sensible element mountable on one of the door and the deadbolt assembly, and a sensing element mountable on one of the door and the deadbolt assembly. The sensing element and the sensing element may be configured to move with respect to each other when the deadbolt member of the deadbolt assembly moves between an extended condition and a retracted condition of the deadbolt.

A playpen door, including a door frame; a door body movably mounted on the door frame; and a detection assembly mounted on the door frame and the door body and configured to detect open or closed state of the door body. The door body is hinged to the door frame. A locking assembly is arranged between the door body and the door frame. The locking assembly may be opened by a switch. The detection assembly is mounted away from a position where the door body is hinged to the door frame. When the door body rotates relative to the door frame, the detection assembly may be triggered, at which time the door body may be sensed to be open. When the door body returns to the closed position again after opening, the detection assembly may be triggered, at which time the door body may be sensed to be closed.

A clutch assembly of an electronic cabinet lock includes a cam, a camshaft, a gear disc, a sleeve, a snap ring, and a steel ball. The cam includes a sleeve ring at its inner end and a swing arm at its outer end. The camshaft is sleeved within the sleeve ring by clearance fit, and the sleeve ring is sleeved within the sleeve by clearance fit. The gear disc is sleeved on the outer wall of the sleeve. The steel ball is mounted in a through groove of the side wall of the cam. The steel ball is located between the sleeve and the cam and is tangent to the camshaft. The camshaft is provided with a groove, and the groove allows the steel ball to fall in. The snap ring is engaged in an annular groove of the lower end of the camshaft for restricting the sleeve.

A mortise lock assembly is disclosed that enables a position of a door associated with the mortise lock assembly to be determined despite whether a deadbolt is in a retracted state or an engaged state. An auxiliary latch assembly transitions between an engaged state and a retracted state. A main latch assembly may also transition between an engaged state and a retracted state. A magnetic field sensing device that is positioned on the auxiliary latch assembly detects a magnetic field generated by a magnetic field generating device positioned on a door strike. The magnetic field sensing device is positioned on the auxiliary latch assembly such that the magnetic field sensing device is aligned with the magnetic field generating device positioned on the door strike when the door is in a closed position. The magnetic field sensing device may also be positioned on the main latch assembly in a similar manner.