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.

The present application concerns access control for controlling unlocking of a door (102) at the presentation of credentials (108) at the door. A credentials relay unit (112) and a lock controller (114) are mounted in the vicinity of the door. The credentials relay unit transmits received credentials to a pre-configured, first network address, and in addition transmits a wake-up signal (122) to the lock controller, which upon receipt of the wake-up signal will transmit a request (126) for instructions to a pre-configured, second network address. In response to the request, the lock controller receives unlocking or no-action instructions (128a, 128b), and in case unlocking instructions are received, the lock controller transmits an unlocking signal (132).

The present application concerns access control for controlling unlocking of a door (102) at the presentation of credentials (108) at the door. A credentials relay unit (112) and a lock controller (114) are mounted in the vicinity of the door. The credentials relay unit transmits received credentials to a pre-configured, first network address, and in addition transmits a wake-up signal (122) to the lock controller, which upon receipt of the wake-up signal will transmit a request (126) for instructions to a pre-configured, second network address. In response to the request, the lock controller receives unlocking or no-action instructions (128a, 128b), and in case unlocking instructions are received, the lock controller transmits an unlocking signal (132).

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 electronic trolley lock system and a method for providing trolley service based on a request of a registered user intending to use a trolley enabled with an electronic trolley lock device. The method and system can enable tracking of trolley use and locating abandoned trolleys. The system can also enable performing a transaction when a trolley is unlocked and performing a reverse transaction on return of the trolley by a registered user.

A method and system for communicating with wireless messaging enabled door locks. The method includes advertising availability of the door lock via wireless messaging for a first period of time; triggering a message send event; determining a destination node; connecting to the destination node; sending the message to the destination node; and entering a low power state for a second period of time, wherein the second period of time is longer than the first period of time; wherein the destination node is chosen from a second door lock or a computing system.

An emergency actuating device for a closing system of a movable part of a vehicle, in particular of a door, sliding door, flap or tailgate, having at least one energy store, a communication unit for wireless communication with an ID transponder, and an electronics unit for activating a lock of the movable part, whereby the lock of the movable part can be transferred from a locking position into an unlocking position or vice versa.

Lock systems are disclosed. The lock system may include a lock unit and a separate base station. The lock unit may include one or more components maintained in a powered-off and/or low-power standby state when not in use. The lock unit may include a sound receiver. The lock unit may activate power to one or more components unit after detecting a predetermined activation sound transmitted by a sound transmitter on the base station. The lock unit and base station may include wireless communicators to communicate signals and/or information between the lock unit and base station after the lock unit is powered on. To conserve power, a lock unit may power down after a predetermined action has been completed, communication of a power down signal, and/or after a predetermined time period has elapsed.

A system and a method for activating a lockbox when authenticating device is in range. One or more data packets are received from a plurality of first devices at a sensor unit. A valid data packet is determined from the one or more data packets. A first device corresponding to the valid data packet is determined from the plurality of first devices. A trigger signal is transmitted to a second device after validating the data packet. The second device is switched ON to transmit and receive communication from the first device based on receiving the trigger signal.