Systems and methods are described for updating an influence model used to manage physical conditions of an environmentally controlled space. A method comprises operating an environmental maintenance system in a first production mode with the influence model until an event causes the system to enter a second production mode. In the second production mode a first actuator's operation level is varied and operation levels of other actuators are optimized. The influence model is adjusted based on the operation levels.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A method of updating an influence model of a environmental maintenance system that includes a plurality of environmental maintenance modules and a plurality of sensors, each sensor measuring a value of a corresponding physical condition of an environment, each module including one or more actuators, the method comprising: running the environmental maintenance system in a first production mode that uses the influence model to determine operation levels of the actuators by: measuring sensor values of the sensors; and determining first operation levels of the actuators that optimize a first cost function such that predicted sensor values do not exceed a threshold, wherein the predicted sensor values are determined using the influence model based on the first operation levels of the actuators; identifying an event indicating a second production mode in which the influence model is updated, wherein a first operation level of a first actuator is varied as part of an update procedure of the second production mode; and running the environmental maintenance system in the second production mode by: constraining the first operation level of the first actuator to follow a first trajectory; determining second operation levels of a subset of the actuators that optimize a second cost function based on measured sensor values, the subset not including the first actuator; and updating the influence model based on the first trajectory, the second operation levels, and measured sensor values. 2. The method of claim 1, wherein identifying the event includes: determining a first confidence score of the influence model associated with the first actuator; when the first confidence score is lower than a first threshold, identifying the first actuator whose operation level is to be varied. 3. The method of claim 2, wherein the first confidence score is based on a length of time that a variation in the operation level of the first actuator is less than a threshold. 4. The method of claim 1, wherein the first trajectory changes linearly over time. 5. The method of claim 1, wherein the event indicating a second mode is periodically scheduled or is an unchanged operation level in one of the actuators for more than a specified length of time. 6. The method of claim 1, wherein the second operation levels of the subset of actuators are selected to maintain the physical conditions within acceptable ranges of values. 7. The method of claim 1, wherein updating the influence model comprises: receiving a time sequence of data comprising values of the sensors and the actuators at a plurality of first time instants; using the values of the sensors and actuators at the plurality of first time instants to predict a value of a selected sensor at a second time instant that is subsequent to the plurality of first time instants; comparing the predicted value of the selected sensor at the second time instant to an actual value of the selected sensor at the second time instant; and updating model parameters based on the comparison. 8. The method of claim 7, wherein updating the influence model parameters uses a least squares technique. 9. The method of claim 1, further comprising: exiting the second production mode in response to a sensor value exceeding a corresponding threshold. 10. A computer product comprising a non-transitory computer readable medium storing a plurality of instructions that when executed cause a computer system to update an influence model of a environmental maintenance system that includes a plurality of environmental maintenance modules and a plurality of sensors, each sensor measuring a value of a corresponding physical condition of an environment, each module including one or more actuators, the instructions comprising: running the environmental maintenance system in a first production mode that uses the influence model to determine operation levels of the actuators by: measuring sensor values of the sensors; and determining first operation levels of the actuators that optimize a first cost function such that predicted sensor values do not exceed a threshold, wherein the predicted sensor values are determined using the influence model based on the first operation levels of the actuators; identifying an event indicating a second production mode in which the influence model is updated, wherein a first operation level of a first actuator is varied as part of an update procedure of the second production mode; and running the environmental maintenance system in the second production mode by: constraining the first operation level of the first actuator to follow a first trajectory; determining second operation levels of a subset of the actuators that optimize a second cost function based on measured sensor values, the subset not including the first actuator; and updating the influence model based on the first trajectory, the second operation levels, and measured sensor values. 11. An environmental maintenance system comprising: a plurality of sensors, each sensor measuring a value of a corresponding physical condition of an environment, a plurality of environmental maintenance modules, each module including one or more actuators; and a supervisory controller that is communicatively linked with the modules, sensors, and the computer product of claim 10, and that is configured to execute the plurality of instructions of the computer product of claim 10. 12. The computer product of claim 10, wherein identifying the event includes: determining a first confidence score of the influence model associated with the first actuator; when the first confidence score is lower than a first threshold, identifying the first actuator whose operation level is to be varied. 13. The computer product of claim 10, wherein updating the influence model comprises: receiving data of values of the sensors and the actuators at a plurality of first time instants; using the values of the sensors and actuators at the plurality of first time instants to predict a value of a selected sensor at a second time instant that is subsequent to the plurality of first time instants; comparing the predicted value of the selected sensor at the second time instant to an actual value of the selected sensor at the second time instant; and updating model parameters based on the comparison. 14. A method of updating an influence model of a environmental maintenance system that includes a plurality of environmental maintenance modules and a plurality of sensors that measure a value of a physical condition of an environment, each module including one or more actuators, the method comprising: running the environmental maintenance system in a first production mode that uses the influence model to determine operation levels of the actuators by: measuring sensor values of the sensors; and determining first operation levels of the actuators that optimize a first cost function such that predicted sensor values do not exceed a threshold, wherein the predicted sensor values are determined using the influence model based on input levels of the actuators; identifying an event indicating a second production mode in which the influence model is updated, wherein a first operation level of a first actuator is varied according to a specific trajectory as part of an update procedure of the influence model, wherein identifying the event includes: determining a first confidence score of the influence model associated with the one or more first actuators; and when the first confidence score is lower than a first threshold, identifying the first actuator whose operation level is to be varied. 15. The method of claim 14, wherein updating the influence model comprises: receiving a time sequence of data comprising values of the sensors and the actuators at a plurality of first time instants; using the values of the sensors and actuators at the plurality of first time instants to predict a value of a selected sensor at a second time instant that is subsequent to the plurality of first time instants; comparing the predicted value of the selected sensor at the second time instant to an actual value of the selected sensor at the second time instant; and updating model parameters based on the comparison. 16. The method of claim 14 wherein varying the first operation level of the first actuator according to the first trajectory adjusts the first operation level to a value outside of a range of operation levels for the first actuator determined by the influence model. 17. The method of claim 16 wherein, in the case that during the varying of the first operation level of the first actuator according to the first trajectory a sensor value exceeds a threshold, the supervisory controller causes the environmental maintenance system to exit the second production mode. 18. A computer product comprising a non-transitory computer readable medium storing a plurality of instructions that when executed cause a computer system to update an influence model of a environmental maintenance system that includes a plurality of environmental maintenance modules and a plurality of sensors, each sensor measuring a value of a corresponding physical condition of an environment, each module including one or more actuators, the instructions comprising the method of claim 14. 19. An environmental maintenance system comprising: a plurality of sensors, each sensor measuring a value of a corresponding physical condition of an environment, a plurality of environmental maintenance modules, each module including one or more actuators, and a supervisory controller that is communicatively linked with the modules, sensors, and the computer product of claim 18, and that is configured to execute the plurality of instructions of the computer product of claim 18. 20. The system of claim 19 wherein varying the first operation level of the first actuator according to the first trajectory adjusts the first operation level to a value outside of a range of operation levels for the first actuator determined by the influence model. 21. The system of claim 20, wherein, in the case that during the varying of the first operation level of the first actuator according to the first trajectory a sensor value exceeds a threshold, the supervisory controller causes the environmental maintenance system to exit the second production mode.