Digital smart real showcase control system, method, and program

Abstract

A digital smart real showcase control system ( 100 ) can control a showcase with minimum required energy by quickly and properly controlling the showcase as a result of comprising an external air temperature input unit ( 11 ) configured to input an external air temperature, an external air temperature table ( 12 ) that stores past external air temperatures, an external air temperature prediction unit ( 13 ) configured to predict a future predicted external air temperature, an indoor temperature input unit ( 14 ) configured to input an indoor temperature, an indoor humidity input unit ( 15 ) configured to input an indoor humidity, an indoor enthalpy storage unit ( 16 ) configured to store past indoor enthalpies, an indoor enthalpy prediction unit ( 17 ) configured to predict a future predicted indoor enthalpy, a showcase control unit ( 18 ) configured to control a showcase temperature based on a predicted external air temperature and a predicted indoor enthalpy.

1 . A digital smart real showcase control system comprising:
 an indoor temperature input means configured to input indoor temperature information;   an indoor humidity input means configured to input indoor humidity information;   an enthalpy calculation means configured to calculate an enthalpy being a total wet air heating value of indoor air from an indoor temperature inputted from the indoor temperature input means and an indoor humidity inputted from the indoor humidity input means;   an external air temperature input means configured to input external air temperature information;   an external air temperature prediction means configured to predict a future predicted external air temperature from external air temperature information inputted by the external air temperature input means; and   a control means configured to control a showcase temperature based on a predicted external air temperature predicted by the external air temperature prediction means,   wherein the control means performs energy-saving control of the showcase temperature by a quantity of a temperature-dependent control coefficient,   wherein   temperature-dependent control coefficient=control coefficient−(control coefficient×deviating temperature coefficient)   control coefficient=(1−operation coefficient)×safety factor   deviating temperature coefficient=(showcase temperature−target temperature)/permissible temperature range   operation coefficient=external air temperature coefficient×enthalpy coefficient×reference operation coefficient   external air temperature coefficient=predicted external air temperature/reference external air temperature   enthalpy coefficient=enthalpy/reference enthalpy.   
     
     
         2 . The digital smart real showcase control system according to  claim 1 , comprising:
 a storage means configured to store past external air temperatures, wherein   the external air temperature prediction means predicts a predicted external air temperature based on data stored in the storage means.   
     
     
         3 . (canceled) 
     
     
         4 . The digital smart real showcase control system according to  claim 1 , wherein the external air temperature prediction means predicts a future predicted external air temperature for a time, corresponding to a length of a refrigerant pipe connecting the showcase and a freezing machine, ahead. 
     
     
         5 . The digital smart real showcase control system according to  claim 1 , comprising:
 an indoor enthalpy prediction means configured to predict a predicted indoor enthalpy from the indoor temperature inputted from the indoor temperature input means and the indoor humidity inputted from the indoor humidity input means,   wherein the control means controls a showcase temperature based on an indoor enthalpy predicted by the indoor enthalpy prediction means.   
     
     
         6 . The digital smart real showcase control system according to  claim 1 , wherein the control means controls the showcase based on a predicted bias external air temperature obtained by adding a bias temperature for correcting a high temperature around a condenser to the predicted external air temperature. 
     
     
         7 . A digital smart real showcase control method comprising:
 an indoor temperature input step of inputting indoor temperature information;   an indoor humidity input step of inputting indoor humidity information;   an enthalpy calculation step of calculating an enthalpy being a total wet air heating value of indoor air from an indoor temperature inputted from the indoor temperature input means and an indoor humidity inputted from the indoor humidity input means;   an external air temperature input step of inputting external air temperature information;   an external air temperature prediction step of predicting a future predicted external air temperature from external air temperature information inputted by the external air temperature input step; and   a control step of controlling a showcase temperature based on a predicted external air temperature predicted by the external air temperature prediction step,   wherein the control step performs energy-saving control of the showcase temperature by a quantity of a temperature-dependent control coefficient,   wherein   temperature-dependent control coefficient=control coefficient−(control coefficient×deviating temperature coefficient)   control coefficient=(1−operation coefficient)×safety factor   deviating temperature coefficient=(showcase temperature−target temperature)/permissible temperature range   operation coefficient=external air temperature coefficient×enthalpy coefficient×reference operation coefficient   external air temperature coefficient=predicted external air temperature/reference external air temperature   enthalpy coefficient=enthalpy/reference enthalpy.   
     
     
         8 . (canceled) 
     
     
         9 . A tangible non-transitory computer-readable storage medium, the computer-readable storage medium is configured to store a program executable by a digital smart real showcase control system, the digital smart real showcase control system upon execution of the program is configured to perform the digital smart real showcase control method of  claim 7 .