A method and system for operating an electronic device are provided. The method may include one or more of the following operations. At least one request related to an electronic device may be transmitted. The at least one request includes a controlling request, a communication protocol determining request, or a firmware upgrade request. Operating data generated based on the at least one request may be obtained. The electronic device may be operated based on the operating data.

A locking device assembly for a door located at a door frame. The locking device assembly includes a door strike assembly including a magnetized ferromagnetic material and a latchbolt assembly located at the door. The latchbolt assembly includes a latchbolt and a magnetic field sensor, wherein the magnetic field sensor senses a magnetic field provided by the door strike assembly. The door strike assembly includes, in different embodiments, a magnet located in a frame of the door strike assembly or a magnetic roller. The magnetic field sensor includes a magnetometer configured to determine the presence of a magnetic field provided by the door strike assembly. In the event that the door strike assembly has been removed to defeat the locking device, the lack of the magnetic field indicates that a security condition exists. An alert is provided to indicate the existence of the security condition.

A locking device assembly for a door located at a door frame. The locking device assembly includes a door strike assembly including a magnetized ferromagnetic material and a latchbolt assembly located at the door. The latchbolt assembly includes a latchbolt and a magnetic field sensor, wherein the magnetic field sensor senses a magnetic field provided by the door strike assembly. The door strike assembly includes, in different embodiments, a magnet located in a frame of the door strike assembly or a magnetic roller. The magnetic field sensor includes a magnetometer configured to determine the presence of a magnetic field provided by the door strike assembly. In the event that the door strike assembly has been removed to defeat the locking device, the lack of the magnetic field indicates that a security condition exists. An alert is provided to indicate the existence of the security condition.

A lock monitoring device includes a detection unit and a plurality of sensors, where the detection unit is configured with a thin circuit board configured with a plurality of detection elements, allowing the detection elements to be connected in parallel with a circuit and then connected to a control circuit; the sensors are configured on parts of the lock such as lock tongues, rotating shaft and correspond to the detection elements; whereby, when the lock is unlocked and locked, the detection elements will detect that the detection elements depart from detection positions and send detection signals to a remote monitoring host, and the monitoring host monitors and records the number and time of the unlocking of the lock, achieving smart access control and further allowing the lock to be safer.

Lock indicators useable to signal the locked or unlocked state of a lock at both sides of a door selectively secured by the lock. Lock indicators include a first cuff for receiving an input causing the first cuff to transition from a first position to a second position associated with the locked state and the unlocked state. The lock indicators include a second cuff for receiving input from the first cuff via a transmission rod causing the second cuff to transition from a first position to a second position associated with the locked state and the unlocked state.

Lock indicators useable to signal the locked or unlocked state of a lock at both sides of a door selectively secured by the lock. Lock indicators include a first cuff for receiving an input causing the first cuff to transition from a first position to a second position associated with the locked state and the unlocked state. The lock indicators include a second cuff for receiving input from the first cuff via a transmission rod causing the second cuff to transition from a first position to a second position associated with the locked state and the unlocked state.

A tamper-resistant sash window lock includes a housing, a shaft, a cam, and a lever member. An interior surface of the housing wall that defines a cavity. A portion of the interior surface of the housing wall is curved about a hole in the housing, with a distal end of the wall portion formed into a lock surface. The shaft is rotatably mounted in the hole, and a hub of the cam is rotatably mounted on the shaft. The cam has a cantilevered arm with a lock surface and an engagement surface. The lever member is fixedly secured to the shaft, for a first side thereof to engage and drive the cam hub in a first rotational direction into a lock position when the shaft is actuated in the first rotational direction, so the lock surface of the cantilevered arm engages the lock surface of the housing preventing forced entry.

Systems and methods for detecting whether a door lock bolt is engaged with a door jamb recess in a locked position is provided. Certain of the systems and methods described herein detect engagement between a door lock bolt and door jamb recess using a motor current signature. Certain of the systems and methods described herein detect engagement between a door lock bolt and door jamb recess using a bolt vibration signature.

Systems and methods for detecting whether a door lock bolt is engaged with a door jamb recess in a locked position is provided. Certain of the systems and methods described herein detect engagement between a door lock bolt and door jamb recess using a motor current signature. Certain of the systems and methods described herein detect engagement between a door lock bolt and door jamb recess using a bolt vibration signature.

Disclosed herein is a door lock configured to indicate the lock status of the door lock to nearby persons. In some instances, the door lock includes a locking mechanism with one or more actuators configured to act directly on an indicator such that the indicator indicates the lock status of the lock.