The present invention relates to an emergency charging device and method for a door lock and specifically to an emergency charging device and method for a door lock, capable of: charging a secondary battery by means of light or a battery in a regular charging mode in which the battery is not discharged and, at the same time, operating the door lock by means of the battery or the secondary battery according to the amount of charge; and operating the door lock in an emergency manner by urgently charging the secondary battery by means of light in an emergency charging mode in which the battery is discharged.

In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and/or raising and lowering a safety railing system based on said information and/or user input. Said hatch system may include an actuator and guides for automatically locking/unlocking and opening/closing a hatch, an actuator and guides for automatically raising/lowering a railing system, safety monitoring detectors/apparatuses, and a centralized controller.

The present disclosure relates to a shared bicycle that can be charged conveniently. The bicycle includes a front fork, a rear fork, a handle mounted on the front fork, a shopping basket mounted on the handle, a solar panel mounted on the shopping basket, and a smart lock mounted on the rear fork. The bicycle further includes a bus for data transmission and charging. One end of the bus is electrically connected to the smart lock, and the other end of the bus is configured with an interface that can be connected to an external circuit. The interface is mounted on the shopping basket. The solar panel is connected to the bus via a wire. The interface of the bus is mounted on the shopping basket without disassembling the cover plate, which provides a large operable space and makes it convenient for charging and data transmission, thereby improving the rescue efficiency.

A key and lock set include: an electronic key without a built-in a power source; a lock openable by the electronic key but not openable by a mechanic key, having a power source shared with the electronic key; and an electronic key reader configured to read an identification of the electronic key; wherein: the lock is configured to be opened by the electronic key upon the identification matches an identification of the lock; and the identification of the electronic key and the identification of the lock are programmable and configured to be paired.

A device for preventing unwanted opening of a locked enclosure includes a lock bolt moveable between a locked position and an unlocked position. A lever arm is movable between disengaged and engaged positions and moves the lock bolt between the locked and unlocked positions. A rotary element is engageable with the lever arm in the engageable position. The rotation of the rotary element when the rotary element is engaged with the lever arm moves the lock bolt between the locked and unlocked positions. A pin normally blocks the lever arm from moving from the disengaged position to the engageable position. A rotatable output gear moves a rack gear and the pin to unblock the lever arm and thereby allowing the lever arm to engage with the rotary element to allow a user to rotate the rotary element to move the lock bolt between the locked and unlocked positions.

A door leaf assembly with door fittings equipped with an add-on module for autonomous power supply, which includes a mechanically operated handle, where the add-on module for autonomous power supply includes at least one part, wherein each of the parts of the add-on module for autonomous power supply is inserted between at least a part of the door fittings and the door leaf. It is advantageous when the add-on module for autonomous power supply contains the central gearbox with the primary gearwheel and at least one secondary gearwheel. The primary gearwheel contains a hole for inserting the axis of the handle. Each secondary gearwheel is connected to one of the main shafts to drive the rotation of this main shaft, each main shaft being connected to either a single electric generator or to a block of at least two electric generators which are kinematically connected to each other.

Electromechanical lock utilizing magnetic field forces. An actuator is moved between a locked position and an unlocked position. In the locked position, a first permanent magnet directs a first magnetic field exerting a pushing force so that rotation of the first axle is blocked, and a second permanent magnet directs a second magnetic field exerting a pulling force so that the first axle is kept uncoupled with the second axle. In the unlocked position, the first permanent magnet directs a reversed first magnetic field exerting a pulling force so that the first axle is released to rotate, and the second permanent magnet directs a reversed second magnetic field exerting a pushing force so that the first axle becomes coupled with the second axle.

A system and method for measuring energy harvested from at least one energy source for use in an access control system. The method comprises charging a capacitive storage device to a voltage high threshold, where the capacitive storage device is for storing energy harvested from at least one sensor receiving energy from at least one energy source and the capacitive storage device is coupled to an energy harvesting manager adapted for managing the amount of energy received by the at least one sensor, and applying a reference load to the capacitive storage device until the capacitive storage device discharges to a predetermined voltage value, the reference load having a predetermined resistance value. The method further comprises determining a time constant, the time constant defined as the length of time required for the capacitive storage device to discharge to the predetermined voltage value, determining an exact or near exact capacitance of the capacitive storage device by comparing the time constant to the reference load predetermined value, discharging the capacitive storage device to a voltage low threshold, and determining an amount of energy used per charge unloaded of the capacitive storage device by comparing the voltage high threshold and the voltage low threshold.

An electronic lock, including: a power storage device; and photovoltaic cells located on a surface of the electronic lock, the photovoltaic cells being electrically coupled to the power storage device in order to provide a charging current to the power storage device.

A gate latch system has a latch line operating sub-assembly, a gravity latch mechanism, and a latch bar. The latch line operating sub-assembly has a tube of a first length having male threading along the entire length, allowing the tube to be trimmed to length for gateposts of different widths. The system comprises lighting elements in handles and knobs to aid a user in operation.