US Patent 9713002 Access control via a mobile device

Systems, devices, and methods for access control via a mobile device are described herein. One method includes receiving location information associated with a mobile device in a facility, determining that the mobile device is within a particular distance of an area of the facility based on the location information, determining whether a user of the mobile device is allowed access to the area, and allowing access to the area via a relay associated with the area responsive to a determination that the user is allowed access.