Air conditioning controlling device and method

Abstract

After the commencement of air conditioning estimated control, a temperature error between a measured temperature, measured at a subject location within an air-conditioned space, and an estimated temperature at the subject location, obtained from a heat flow analysis processing portion, is compared to a tolerance range that is set in advance for the temperature error, to evaluate a switch to air conditioning feedback control for the subject location to correct the temperature error, and if air conditioning feedback control is necessary, and instruction is given by an air conditioning instructing portion to an air conditioning system 20 to start the execution of air conditioning feedback control operations with the estimated temperature at the subject location as the setting temperature.

1 . An air conditioning controlling device, equipped with a heat flow analysis processing portion for using a distributed system heat flow analysis technique to estimate distributions of temperatures and airflows in an air-conditioned space from an inputted state of air conditioning of the air-conditioned space, and for estimating an operating quantity pertaining to air conditioning control based on these distributions and on a target temperature in a target location within the air-conditioned space, for performing air conditioning estimated control, based on the operating quantity obtained from the heat flow analysis processing portion, for controlling the air conditioning environment of the air-conditioned space in its entirety through regulating, through an air conditioning system, a conditioned air blowing speed and blowing temperature at individual blowing vents provided within the air-conditioned space; comprising:
 an air conditioning feedback control evaluating portion performing an evaluation for switching to an air conditioning feedback control based on an end condition of the effect of the air conditioning estimated control, set in advance, after the air conditioning estimated control has started; and   an air conditioning instructing portion instructing the air conditioning system to start executing the air conditioning feedback control operations with the estimated temperature as the setting temperature when it has been decided by the air conditioning feedback control evaluating portion to switch to the air conditioning feedback control.   
     
     
         2 . The air conditioning controlling device as set forth in  claim 1 , wherein:
 the air conditioning feedback control evaluating portion checks whether a temperature field has stabilized at a subject location through comparing the measured temperature change at the specific subject location during a specific evaluation time interval to a normal evaluation temperature range, and if the stability of the temperature field at the subject location is confirmed, decides to switch to the air conditioning feedback control for the subject location.   
     
     
         3 . The air conditioning controlling device as set forth in  claim 1 , wherein:
 the air conditioning feedback control evaluating portion decides to switch to air conditioning feedback control for a subject location, in order to correct a temperature error, through comparing, to a tolerance range that is set in advance for the temperature error, a temperature error between the measured temperature and a reference temperature that is an estimated temperature at the specific subject location, obtained through the heat flow analysis processing portion, after the air conditioning estimated control has been started.   
     
     
         4 . The air conditioning controlling device as set forth in  claim 1 , wherein:
 the air conditioning feedback control evaluating portion compares the measured temperature to a reference temperature, which is the measured temperature measured at the specific subject location at a time that is a specific evaluation time interval prior to the measured temperature, and calculates a measured temperature slope for the subject location from the measured temperature change obtained for the subject location, and decides to switch to the air conditioning feedback control for the subject location when the measured temperature at the target location is equal to or greater than the estimated temperature at the subject location and the measured temperature slope is equal to or greater than a reference slope for the measured temperature corresponding to the temperature error, set in advance, and when the measured temperature for the target location is less than the estimated temperature and the measured temperature slope is less than a reference slope for the measured temperature, corresponding to the temperature error, set in advance.   
     
     
         5 . The air conditioning controlling device as set forth in  claim 1 , wherein:
 the air conditioning feedback control evaluating portion decides to switch to the air conditioning feedback control at the point in time that a specific wait time has elapsed after the start of the air conditioning estimated control.   
     
     
         6 . An air conditioning controlling method used in an air conditioning controlling device that is equipped with a heat flow analysis processing portion for using a distributed system heat flow analysis technique to estimate distributions of temperatures and airflows in an air-conditioned space from an inputted state of air conditioning of the air-conditioned space, and for estimating an operating quantity pertaining to air conditioning control based on these distributions and on a target temperature in a target location within the air-conditioned space, for performing air conditioning estimated control, based on the operating quantity obtained from the heat flow analysis processing portion, for controlling the air conditioning environment of the air-conditioned space in its entirety through regulating, through an air conditioning system, a conditioned air blowing speed and blowing temperature at individual blowing vents provided within the air-conditioned space; comprising:
 an air conditioning feedback control evaluating step wherein an air conditioning feedback control evaluating portion performs an evaluation for switching to an air conditioning feedback control based on an end condition of the effect of the air conditioning estimated control, set in advance, after the air conditioning estimated control has started; and   an air conditioning instructing step wherein an air conditioning instructing portion instructs the air conditioning system to start executing the air conditioning feedback control operations with the estimated temperature as the setting temperature when it has been decided by the air conditioning feedback control evaluating step to switch to the air conditioning feedback control.   
     
     
         7 . The air conditioning controlling method as set forth in  claim 6 , wherein:
 the air conditioning feedback control evaluating step checks whether a temperature field has stabilized at a subject location through comparing the measured temperature change at the specific subject location during a specific evaluation time interval to a normal evaluation temperature range, and if the stability of the temperature field at the subject location is confirmed, switches to the air conditioning feedback control for the subject location.   
     
     
         8 . The air conditioning controlling method as set forth in  claim 6 , wherein:
 the air conditioning feedback control evaluating step decides to switch to air conditioning feedback control for a subject location, in order to correct a temperature error, through comparing, to a tolerance range that is set in advance for the temperature error, a temperature error between the measured temperature and a reference temperature that is an estimated temperature at the specific subject location, obtained through the heat flow analysis processing portion, after the air conditioning estimated control has been started.   
     
     
         9 . The air conditioning controlling method as set forth in  claim 6 , wherein:
 the air conditioning feedback control evaluating step compares the measured temperature to a reference temperature, which is the measured temperature measured at the specific subject location at a time that is a specific evaluation time interval prior to the measured temperature, and calculates a measured temperature slope for the subject location from the measured temperature change obtained for the subject location, and decides to switch to the air conditioning feedback control for the subject location when the measured temperature at the target location is equal to or greater than the estimated temperature at the subject location and the measured temperature slope is equal to or greater than a reference slope for the measured temperature corresponding to the temperature error, set in advance, and when the measured temperature for the target location is less than the estimated temperature and the measured temperature slope is less than a reference slope for the measured temperature, corresponding to the temperature error, set in advance.   
     
     
         10 . The air conditioning controlling method as set forth in  claim 6 , wherein:
 the air conditioning feedback control evaluating step decides to switch to the air conditioning feedback control at the point in time that a specific wait time has elapsed after the start of the air conditioning estimated control.