US Patent 11468408 Building automation system with visitor management

One or more non-transitory computer-readable storage media having instructions stored thereon that, when executed by one or more processors, cause the one or more processors to receive a request to hold a meeting in a building, the request including an individual, retrieve, from the request, contact information for the individual, transmit a request for identifying information to the individual using the contact information, determine a purpose of the individual based on the identifying information, generate a virtual ticket for the individual based on the purpose of the individual, identify a presence of the individual at the building based on the identifying information and image data, and control access control devices in response to identifying the presence of the individual to grant the individual access to the building.