System, lock device and key device based on magnet and magnetically controllable switch

A lock device for use in access control to a physical space, the lock device comprising:

• an electronic lock module configured to communicate with an electronic key module of a key device to evaluate whether to grant access;
• a power source;
• and
• a 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;
• wherein the lock device further comprises a magnetic-metal plate provided in a position aligning the magnetic-metal plate and the permanent magnet to direct the key device to align a key antenna of the key device with a lock antenna of the lock device.

A key device for use in access control to a physical space the key device comprising:

• an electronic key module configured to interact with an electronic lock module of a lock device for access control;
• a key antenna;
• and
• a permanent magnet configured to close a magnetically controllable switch of the lock device to thereby power the lock device, wherein the permanent magnet is configured to be attracted to a magnetic-metal plate of the lock device, to thereby align the key antenna with a lock antenna of the lock device.