LIGHTING SYSTEM
First Claim
1. A lighting system comprising:
- a lighting fixture including a first controller configured to control a light source; and
a sensing device,whereinthe sensing device includes;
an image sensor configured to take an image of a predetermined area; and
a second controller having a function of adjusting sensitivity of the image sensor and a function of setting a dimming rate for the light source,the first controller is configured to light the light source at a dimming level according to the dimming rate set by the second controller,the second controller is configured to judge whether or not a person is present in the predetermined area, based on the image of the predetermined area taken by the image sensor, andthe second controller is configured to, when concluding that a condition where no person is present in the predetermined area continues for a predetermined time period, perform an operation of decreasing the dimming rate by a preset value and increasing the sensitivity of the image sensor for a preset time period.
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Accused Products
Abstract
The lighting system in accordance with the present invention includes a lighting fixture including a first controller configured to control a light source; and a sensing device. The sensing device includes: an image sensor configured to take an image of a predetermined area; and a second controller having a function of adjusting sensitivity of the image sensor and a function of setting a dimming rate for the light source. The first controller is configured to light the light source at a dimming level according to the dimming rate set by the second controller. The second controller is configured to, when concluding that a condition where no person is present in the predetermined area continues for a predetermined time period, perform an operation of decreasing the dimming rate by a preset value and increasing the sensitivity of the image sensor for a preset time period.
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Citations
9 Claims
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1. A lighting system comprising:
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a lighting fixture including a first controller configured to control a light source; and a sensing device, wherein the sensing device includes; an image sensor configured to take an image of a predetermined area; and a second controller having a function of adjusting sensitivity of the image sensor and a function of setting a dimming rate for the light source, the first controller is configured to light the light source at a dimming level according to the dimming rate set by the second controller, the second controller is configured to judge whether or not a person is present in the predetermined area, based on the image of the predetermined area taken by the image sensor, and the second controller is configured to, when concluding that a condition where no person is present in the predetermined area continues for a predetermined time period, perform an operation of decreasing the dimming rate by a preset value and increasing the sensitivity of the image sensor for a preset time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification