An electronic lock assembly according to the invention includes a capacitor unit for storing secondary power, a test circuit for testing the capacitor unit. The test circuit is arranged to connect a test load to the capacitor unit for testing its condition, and to measure the voltage of the capacitor unit before connecting the test load, slightly after connecting the test load, and slightly before disconnecting the test load.

An access control system includes an electrically powered access control device for locking and unlocking a barrier, and an access controller coupled to the access control device. A Power over Ethernet (PoE) circuit receives power over an Ethernet cable and powers the access control device and the access controller. An active power supply buffer connects the access control device and the access controller with the PoE circuit.

A key and lock set for a vehicle includes: a vehicle lock set with both vehicle door lock and vehicle engine start lock; a passcode for mechanical lock; a rotary mechanical passcode dialer or push-button mechanical passcode keypad that is mounted in vehicle and accessible from vehicle outside; an electronic key in the form of a card key, tag key, passcode or biometric for an electronic lock, wireless key with a built-in power source, portable electronic appliance with key software or key hardware of cell phone, smart phone, tablet, computer, smart watch, digital camera or digital multimedia player; and an electronic key identifier that is mounted in vehicle for the electronic key.

Present disclosure relates a secure electronic lock system. Secure electronic lock system includes many secure electronic locks connected through a communication network to a secure electronic lock system server. Each secure electronic lock includes a passive electronic lock, an active electronic key and a passive electronic key. Active electronic key includes electrical power source providing electrical power supply to active electronic key, passive electronic lock and passive electronic key. When both active and passive electronic keys are inserted into respective electronic keyholes of passive electronic lock, both active and passive digital keys are transmitted to passive electronic lock, passive electronic lock can be locked and unlocked only when both active and passive digital keys received match prestored active and passive digital keys respectively. Active and passive digital keys are updated and an access event is transmitted to secure electronic lock system server every time each secure electronic lock is accessed.

Present disclosure relates a secure electronic lock system. Secure electronic lock system includes many secure electronic locks connected through a communication network to a secure electronic lock system server. Each secure electronic lock includes a passive electronic lock, an active electronic key and a passive electronic key. Active electronic key includes electrical power source providing electrical power supply to active electronic key, passive electronic lock and passive electronic key. When both active and passive electronic keys are inserted into respective electronic keyholes of passive electronic lock, both active and passive digital keys are transmitted to passive electronic lock, passive electronic lock can be locked and unlocked only when both active and passive digital keys received match prestored active and passive digital keys respectively. Active and passive digital keys are updated and an access event is transmitted to secure electronic lock system server every time each secure electronic lock is accessed.

A method and a tag for opening a powerless electromechanical lock are provided. The tag comprises a power source, a near field communication transceiver, an antenna connected to the transceiver, an proximity switch and a controller. The switch is configured to wake up the controller from a low power mode upon a detection of a predetermined signal. The controller is configured after the wake up to activate the near field communication transceiver and control the transceiver to transmit via the antenna wirelessly first operating power to the lock for communication and authentication, perform authentication with the lock and, provided that the authentication is successful, control the transceiver to transmit wirelessly second operating power to the lock for the lock to be set into an openable state.

A merchandise security system for protecting an item of merchandise from theft. The merchandise security system comprises a smart device and an electronic key coupled to the smart device. The electronic key is configured to communicate with a merchandise security device for operating a merchandise security device.

It is provided a system comprising a lock device and a key device for use in access control to a physical space. The key device comprises: an electronic key module configured to communicate with an electronic lock module of the lock device for access control; and a permanent magnet configured to close a magnetically controllable switch of the lock device to thereby power an electronic lock module of the lock device. The lock device comprises: the electronic lock module configured to communicate with the electronic key module to evaluate whether to grant access; a power source; and the magnetically controllable switch provided between the power source and the electronic lock module such that the magnetically controllable switch is closable by the permanent magnet of the key device to power the electronic lock module.

A method for unlocking the lock using real-time wireless power supply includes proceeding with authentication identification of a powerless lock by an electronic key after pairing. Power is wirelessly supplied from the electronic key to the lock when the authentication identification starts or the authentication identification passes. The lock obtains the power wirelessly supplied from the lock to operate. When the authentication identification is identified as being successful, the electronic key outputs an unlocking command to the lock. The lock receiving the unlocking command proceeds with an unlocking operation using the power supplied wirelessly.

A locking system is described. The locking system, includes a lock. The lock includes a semi-hard magnet and a hard magnet. The hard magnet is configured to move to open or close the lock, the lock is self-powered using near field communication (NFC), and the lock is digitally controlled using a mobile application.