Electronic access control system

An electronic access control system comprising:

• a code generator configured for generating optical computer readable media, the optical computer readable media encoding access parameters, the access parameters comprising a validity period;
• electronic door lock apparatus comprising:
• a lock controller,
• a memory device,
• a camera controlled by the lock controller to obtain image data;
• and
• an electronic lock controlled by the lock controller, wherein the lock controller is configured to operate in:
• a code reading mode wherein:
• the lock controller obtains optical computer readable media image data from the optical computer readable media using the camera, wherein the lock controller is configured to supersede the optical computer readable media with updated optical computer readable media;
• decodes the access parameters from the image data;
• stores the access parameters in the memory device;
• obtains facial image data using the camera;
• stores a facial data profile in the memory device;
• and
• a code reading bypass mode following the code reading mode wherein the lock controller:
• obtains facial image data using the camera;
• if the facial image data matches the facial data profile, selects the access parameters associated with the facial data profile from the memory device, and wherein:
• the lock controller controls the electronic lock according to the validity period of the access parameters decoded from the optical computer readable media.