Patent ID: 11867419
Assignee: JOHNSON CONTROLS TECHNOLOGY COMPANY
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  H | IPC F  H

Claim 7:
8. A method for controlling a plurality of interconnected devices in a system, the method comprising:
detecting that a first device of the plurality of interconnected devices is unavailable using stored availability information that indicates which devices of the plurality of interconnected devices are available and which devices of the plurality of interconnected devices are unavailable;
identifying a second device of the plurality of interconnected devices schematically dependent upon the first device by conducting a graph theory analysis on schematic relationships indicating connections among the plurality of interconnected devices;
in response to identifying the second device schematically dependent upon the first device, generate a reduced subset of the plurality of interconnected devices that excludes the second device; and
operating the reduced subset to transfer one or more resources among the reduced subset via the connections, wherein operating the reduced subset to transfer the one or more resources among the reduced subset via the connections comprises operating the reduced subset to transfer at least one of:
a first fluid, wherein the system is a chiller system, and the first device is at least one of a pump, valve, storage unit, or a chiller;
a second fluid, wherein the system is an air flow system, and the first device is at least one of a variable air volume (VAV) box, a damper, an actuator, or a fan; and
a flow of electricity, wherein the system is an electrical system, and the first device is at least one of a motor, a generator, or an electric HVAC device.