US Patent 11062543 On-demand credential for service personnel

A credential assigning system is provided for deployment with respect to a structure in which an appliance is disposed and in which an access restricting element is disposed to prevent access to the appliance. The credential assigning system includes a credentialing service configured to issue a credential to a user upon a request for the credential being received thereby and a monitoring unit. The credential is usable by the user in causing the access restricting element to permit access to the appliance for the user. The monitoring unit is configured to receive a fault raised by the appliance and to transmit the request for the credential to the credentialing service in accordance with the fault.