发明名称 |
Closed loop daylight harvesting light control system having auto-calibration |
摘要 |
An apparatus and method for enabling an automatic calibration sequence for a light control system having a daylight harvesting scheme is disclosed herein. An ambient light sensor connects to a detection circuit for detecting the amount of ambient light within a given zone. A microprocessor connects between the detection circuit and a dimming circuit for providing control to initiate dimming and to start the auto-calibration sequence. Responsive to the amount of ambient light detected, the dimming circuit controls the power supplied to a plurality of electrical loads. A storage unit connects to the microprocessor for storing minimum light levels assessed during the auto-calibration sequence wherein the ambient light levels are monitored for a predetermined amount of time to determine the lowest level of ambient light generated for the purpose of setting and storing a target voltage level associated with such. |
申请公布号 |
US8227731(B2) |
申请公布日期 |
2012.07.24 |
申请号 |
US20090562068 |
申请日期 |
2009.09.17 |
申请人 |
HICK ROBERT L.;LEINEN RICHARD A.;LEVITON MANUFACTURING CO., INC. |
发明人 |
HICK ROBERT L.;LEINEN RICHARD A. |
分类号 |
G01J1/32;G01J1/44;H05B37/02 |
主分类号 |
G01J1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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