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US 9,433,063 B2Granted
Intelligent illumination control method, apparatus, and system
AssigneeRicoh Company, Ltd.
InventorsXinping Bao, Guanglei Zhang, Jichuan Zheng
Life of this patent
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Abstract
Disclosed are an intelligent illumination control method, apparatus, and system. The method includes a step of obtaining at least one image of a predetermined lighting area captured by at least one stereo camera; a step of determining, based on the at least one image, one or more target illuminance values of the predetermined lighting area; and a step of determining, based on the one or more target illuminance values, a dimming level of at least one illumination apparatus so that the at least one illumination apparatus works according to the determined dimming level.
Claims9
An intelligent illumination control method, comprising:
- a step of obtaining at least one image of a predetermined lighting area captured by at least one stereo camera and divided into plural cells;
- a step of determining, based on the at least one image of the predetermined lighting area, one or more target illuminance values of the predetermined lighting area;
- a step of determining, based on the one or more target illuminance values of the predetermined lighting area and a dimming model, a dimming level of at least one illumination apparatus so that the at least one illumination apparatus illuminates according to the determined dimming level;
- and
- a step of obtaining, for each cell amongst the plural cells of the predetermined lighting area, a current illuminance value of the cell, wherein
- in the dimming model, for each cell amongst the plural cells of the predetermined lighting area, a weight is set for the cell, and wherein
- the dimming model represents a sum of illuminance differences of each cell in the predetermined lighting area multiplied by the weight of the corresponding cell, and
- each of the illuminance differences is a difference between a target illuminance value of the corresponding cell and an actual illuminance value of the corresponding cell after carrying out dimming, and the actual illuminance value of the corresponding cell is a sum of the current illuminance value of the corresponding cell and a to-be-actually-adjusted illuminance adjustment step length.
5 more elements
An intelligent illumination control apparatus comprising:
- an image obtention part configured to obtain at least one image of a predetermined lighting area captured by at least one stereo camera, the predetermined lighting area being divided into plural cells;
- a target illuminance value determination part configured to determine, based on the at least one image, one or more target illuminance values of the predetermined lighting area;
- and
- a dimming level determination part configured to determine, based on the one or more target illuminance values and a dimming model, a dimming level of at least one illumination apparatus so that the at least one illumination apparatus illuminates according to the determined dimming level and configured to obtain, for each cell amongst the plural cells of the predetermined lighting area, a current illuminance value of the cell, wherein
- the dimming model represents a sum of illuminance differences of each cell in the predetermined lighting area, and
- each of the illuminance differences is a difference between a target illuminance value of the corresponding cell and an actual illuminance value of the corresponding cell after carrying out dimming, and the actual illuminance value of the corresponding cell is a sum of the current illuminance value of the corresponding cell and a to-be-actually-adjusted illuminance adjustment amount.
3 more elements
An intelligent illumination control system comprising:
- at least one stereo camera configured to capture at least one image of a predetermined lighting area which is divided into plural cells;
- a central illumination control apparatus configured to determine, based on the at least one image, one or more target illuminance values of the predetermined lighting area and to determine, based on the determined one or more target illuminance values and a dimming model, a dimming level of at least one illumination apparatus;
- and
- a transmission apparatus configured to transmit the determined dimming level to the at least one illumination apparatus so that the at least one illumination apparatus illuminates according to the determined dimming level and configured to obtain, for each cell amongst the plural cells of the predetermined lighting area, a current illuminance value of the cell, wherein
- the dimming model represents a sum of illuminance differences of each cell in the predetermined lighting area, and
- each of the illuminance differences is a difference between a target illuminance value of the corresponding cell and an actual illuminance value of the corresponding cell after carrying out dimming, and the actual illuminance value of the corresponding cell is a sum of the current illuminance value of the corresponding cell and a to-be-actually-adjusted illuminance adjustment amount.
3 more elements
Dependencies are inferred from the claim text.