System for a lock for a closure, a lock for use with such a system, and a closure system

A control system for a lock for a closure, the control system comprising:

• a lock assembly having or associated with a lock mechanism for operating the lock, the lock assembly having a communication unit and a replaceable power source which powers the lock mechanism and the communication unit;
• and
• a base station coupled to a controller of the closure, and configured to communicate with the communication unit,
• the base station being programmed such that, when initiated, it determines whether the communication unit of a lock assembly having the replaceable power source is present and, if so, establishes a synchronized communication link therewith.

A system for controlling a closure, including a lock assembly for controlling a locking element for the closure and closure controller for controlling movement of the closure,

• the closure arranged to move between a closure open position and a closure closed position in response to closure open commands and closure close commands received by the closure controller,
• the lock assembly arranged to move the locking element between a locked condition and an unlocked condition,
• the lock assembly having a communications unit,
• the closure controller coupled to a base station configured to wirelessly communicate with the communications unit,
• the base station arranged to send lock control signals to the lock assembly to operate the locking element in accordance with a status of the closure controller,
• the lock assembly being arranged to have an operation mode, a standby mode and a sleep mode,
• wherein, in the operation mode, the communication unit is active for two-way communication with the base station, and the lock assembly can be actuated to operate the locking element,
• wherein, in the standby mode, the communication unit is active only to receive communications from the base station,
• wherein, in the sleep mode, the communication unit is inactive,
• the lock assembly being configured to switch between the operation mode, standby mode and sleep mode in accordance with a pre-established synchronization protocol,
• and wherein when the closure is in said closure open position and a closure close command is received by the closure controller the lock assembly moves the locking element, if it is in the locked condition, is moved from the locked condition to the unlocked condition, and wherein when the closure reaches the closure closed position the lock assembly moves the locking element from the unlocked condition to the locked condition.