US 12,323,417 B2
Temporary two factor heating, ventilating, and air conditioning (HVAC) appliance authentication
Michael Grant, Taylorsville, KY (US)
Assigned to MIDEA GROUP CO., LTD., Guangdong (CN)
Filed by Midea Group Co., Ltd., Foshan (CN)
Filed on Mar. 24, 2023, as Appl. No. 18/189,280.
Prior Publication US 2024/0323179 A1, Sep. 26, 2024
Int. Cl. H04L 9/40 (2022.01); F24F 11/56 (2018.01); H04L 67/12 (2022.01)
CPC H04L 63/0846 (2013.01) [F24F 11/56 (2018.01); H04L 67/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A room Heating, Ventilation, and Air Conditioning (HVAC) appliance, comprising:
a housing configured to be installed in a room;
an HVAC assembly disposed in the housing;
a user interface disposed in the housing;
a network interface; and
a controller coupled to the HVAC assembly, the user interface, and the network interface, the controller configured to operate the HVAC assembly to condition air in the room in response to a command received through the network interface from a mobile device;
wherein the controller is further configured to authenticate the mobile device prior to operating the HVAC assembly in response to the command by:
presenting a temporary authentication code to a user of the mobile device with the user interface;
receiving a user-entered code from the mobile device through the network interface; and
temporarily authenticating the mobile device in response to the user-entered code matching the temporary authentication code;
wherein the controller is configured to receive the command from the mobile device after temporarily authenticating the mobile device and to operate the HVAC assembly to condition air in the room in response to receiving the command from the mobile device; and
wherein the controller is configured to automatically and periodically change the temporary authentication code such that the mobile device is automatically deauthenticated once the temporary authentication code has been changed after the mobile device is authenticated.