Automated control-schedule acquisition within an intelligent controller
View Patent ↗The current application is directed to intelligent controllers that initially aggressively learn, and then continue, in a steady-state mode, to monitor, learn, and modify one or more control schedules that specify a desired operational behavior of a device, machine, system, or organization controlled by the intelligent controller. An intelligent controller generally acquires one or more initial control schedules through schedule-creation and schedule-modification interfaces or by accessing a default control schedule stored locally or remotely in a memory or mass-storage device. The intelligent controller then proceeds to learn, over time, a desired operational behavior for the device, machine, system, or organization controlled by the intelligent controller based on immediate-control inputs, schedule-modification inputs, and previous and current control schedules, encoding the desired operational behavior in one or more control schedules and/or sub-schedules.
1. An intelligent controller comprising:
a processor;
a memory;
a control schedule stored in the memory;
a schedule interface;
a control interface; and
instructions stored within the memory that, when executed by the processor,
receive one or more immediate-control inputs through the control interface during a monitoring period and record the received immediate-control inputs in memory,
receive one or more schedule changes through the schedule interface during the monitoring period and record the received schedule changes in the memory,
generate an updated monitoring-period schedule, after the monitoring period, based on the recorded immediate-control inputs, recorded schedule changes, and the control schedule,
substitute the updated monitoring-period schedule for a portion of the control schedule corresponding to the monitoring period, and
propagate the updated monitoring-period schedule to additional time periods within the control schedule;
wherein the instructions generate an updated monitoring-period schedule, after the monitoring period, based on the recorded immediate-control inputs, recorded schedule changes, and the control schedule by
combining the recorded immediate-control inputs, recorded schedule changes, and setpoints of the control schedule to produce a provisional schedule,
clustering the immediate-control inputs, schedule changes, and setpoints of the provisional schedule into one or more clusters,
resolving the one or more clusters within the provisional schedule, and
generating the updated monitoring-period schedule from the resolved clusters of the provisional schedule.
2. The intelligent controller of claim 1 wherein combining the recorded immediate-control inputs, recorded schedule changes, and setpoints of the control schedule to produce the provisional schedule further comprises:
representing immediate-control inputs as time-associated values of one or more parameters within a portion of the control schedule corresponding to the monitoring period;
representing recorded control-schedule changes as time-associated values of one or more parameters, additionally associated with input times, within the portion of the control schedule corresponding to the monitoring period; and
considering the represented immediate-control inputs, retrospective control-schedule changes, and setpoints of the provisional schedule to be events.
3. The intelligent controller of claim 2 wherein clustering the immediate-control inputs, schedule changes, and setpoints within the provisional schedule into one or more clusters further comprises:
collecting together, as a separate cluster, each group of events that are each within a first threshold time interval of another event of the separate cluster; and
collecting, as a separate cluster, each event that is not within the first threshold time interval of another event.
4. The intelligent controller of claim 3 wherein resolving the one or more clusters within the provisional schedule further includes replacing each cluster of events with one of:
no event, when no control-change trend is discerned in the cluster;
one event, when a single-event control-change trend is discerned in the cluster; and
two events, when a two-event control-change trend is discerned in the cluster.
5. The intelligent controller of claim 1 wherein the instructions propagate the updated monitoring-period schedule to additional time periods within the control schedule by:
selecting, according to one or more rules, one or more additional time periods within the control schedule related to the time period of the updated monitoring-period schedule; and
to each of the selected time periods,
copying setpoints corresponding to immediate-control inputs of the provisional monitoring-period schedule onto a portion of the control schedule corresponding to the selected time period, and
resolving the portion of the control schedule corresponding to the selected time period.
6. The intelligent controller of claim 1 wherein resolving the portion of the control schedule corresponding to the selected time period further comprises:
applying, to each copied setpoint, one or more rules that result in one of deleting the copied setpoint,
deleting an existing setpoint,
moving either the copied setpoint or another setpoint in time, and
no change to the copied setpoint.