Patent ID: 8042348

Claim:
A cooling system, comprising: a compressor for compressing a refrigerant; at least one constituent device which is a separate device from the compressor and that constitutes a refrigerant circulation circuit together with the compressor; a compressor sensor for detecting a first physical value as a first sensor value, the first physical value being a physical value of the refrigerant; a plurality of constituent device sensors each for detecting a second physical value as a second sensor value, each of the second physical values being a physical value having a close correlation with the first physical value either by being affected by the first physical value or by affecting the first physical value; a compressor control unit for controlling the compressor using the compressor sensor at a time of normal operations; an abnormality detection unit for detecting an abnormality of the compressor sensor; a correlation coefficient-computing unit that computes a correlation coefficient indicating a correlation between the second sensor value detected by each of the constituent device sensors and the first sensor value for each second sensor value; a substitute sensor selection unit for selecting a substitute sensor for controlling the compressor when an abnormality is detected by the abnormality detection unit; an adjustment mechanism provided at each of the constituent devices for adjusting a corresponding second physical value; and a device specifying unit for specifying a constituent device with the adjustment mechanism having an optimum value of a degree of adjusting the second physical value from among the constituent devices based on adjustment amount information indicating the degree of adjusting the second physical value; wherein the compressor control unit controls the compressor using the constituent device sensor in place of the compressor sensor at a time of abnormality detection by the abnormality detection unit; and wherein the substitute sensor is a constituent device sensor that detects the second sensor value having the most correlation with the first sensor value among the constituent device sensors based on the correlation coefficient computed by the correlation coefficient computation unit using a correlation function.