| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an illumination control device capable of calibrating degradation of illuminance detection accuracy when the illuminance detection accuracy is degraded when an illuminance sensor is covered with, for instance, dust or the like. Ž<P>SOLUTION: The illumination control device includes: a luminaire 4 allowing light modulation; a wireless illuminance sensor 5 detecting illuminance; and an illumination controller 2 having an illumination control means 2a controlling the output of the luminaire based on an illuminance detection value detected by the illuminance sensor, and an illuminance detection value calibration means 2d which records illuminance detection values of the illuminance sensor at two or more required degrees of light modulation of the luminaire for a predetermined period, respectively calculates a relational expression showing correlation between the degree of light modulation and the illuminance detection value for the initial value in starting the recording and a measurement value after a predetermined time elapses, and calibrates the measurement value by substituting the degree of light modulation of the measurement value and the illuminance detection value in the relational expression. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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