Method for robotic devices to authenticate users

An apparatus, comprising:

• a robotic device comprising:
• a chassis;
• drive wheels coupled to the chassis;
• one or more processing units;
• one or more sensors;
• one or more biometric sensors;
• a time access memory comprising a plurality of memory cells;
• and,
• one or more tangible, non-transitory, machine-readable medium storing instructions that when executed by the one or more processing units effectuate operations comprising:
• receiving biometric data associated with a user from the one or more biometric scanners;
• authenticating the user;
• assigning a predetermined time slot to each of the plurality of memory cells, wherein each of the plurality of memory cells is available for writing only during the predetermined time slot, after which each memory cell is made read-only;
• storing the biometric data of the user if the user is authenticated within a currently available cell of the time access memory;
• increasing a user loyalty metric if the user is authenticated;
• and,
• providing access to a plurality of robotic device functions in accordance with the user loyalty metric.

One or more tangible, non-transitory, machine-readable medium storing instructions that when executed by one or more processing units effectuate operations comprising:

• receiving biometric data associated with a user;
• authenticating the user;
• providing a time access memory, wherein the time access memory comprises a plurality of memory cells;
• assigning a predetermined time slot to each of the plurality of memory cells, wherein each of the plurality of memory cells is available for writing only during the predetermined time slot, after which each memory cell is made read-only;
• storing the biometric data of the user if the user is authenticated within a currently available memory cell of the time access memory;
• increasing a user loyalty metric if the user is authenticated;
• and,
• providing access to a plurality of robotic device functions in accordance with the user loyalty metric.