US Patent 9476657 Controlling data center cooling systems

Techniques for controlling a data center cooling system include polling a plurality of control devices associated with the data center cooling system for a respective state of each of the control devices; receiving, from each of the plurality of control devices, a response that includes the respective state; aggregating the responses from the plurality of control devices; executing a control algorithm that includes the aggregated responses as an input to the algorithm and an output that includes a setpoint of the plurality of control devices; and transmitting the output to the plurality of control devices.