Image-analysis-based desk lamp brightness self-adaptive adjustment method

Abstract

The invention discloses an image-analysis-based desk lamp brightness self-adaptive adjustment method. A camera is arranged on the edge of a lampshade of a desk lamp; the camera is used for shooting a comparison image of a light area and a non-light area of the desk lamp; and a photosensitive sensor is arranged on the outer wall of the lampshade of the desk lamp. After the brightness of the environment where the desk lamp is located is obtained, a brightness difference value of the light area and the non-light area of the desk lamp in the comparison image is worked out; then according to the brightness difference value and the brightness of the environment where the desk lamp is located, the brightness of the current light area of the desk lamp is worked out; and the brightness of the current light area of the desk lamp is adjusted according to a preset brightness threshold value. The image-analysis-based desk lamp brightness self-adaptive adjustment method is simple in design, convenient to use, and capable of self-adaptively adjusting light according to the light intensity of the environment and the focusing degree of the desk lamp, so that human eyes are always in the most comfortable state and shortsightedness caused by damage to the eyes is avoided.

Description

technical field [0001] The invention relates to a desk lamp, in particular to a method for adaptively adjusting the brightness of the desk lamp based on image analysis. Background technique [0002] Desk lamp is a kind of lamp. This electrical appliance is mainly placed on the desk or dining table for lighting purposes. It is a movable lamp. The light irradiation range of the desk lamp is relatively small and concentrated, so it will not affect the light of the whole room, and the effect is limited around the desk lamp, which is convenient for reading and learning, and saves energy. [0003] Desk lamps are classified into reading desk lamps and decorative desk lamps according to their functions. [0004] The lamp body of the reading desk lamp is simple and light in shape. It refers to the desk lamp specially used for reading and writing. This kind of desk lamp can generally adjust the height of the lamp pole, the direction and brightness of the light, and is mainly used for...

AI Technical Summary

Problems solved by technology

[0009] The above-mentioned patent can also adjust the brightness of the desk lamp adaptively, but it is based on the brightness of the external environment, without considering the lighting conditions of the desk lamp itself: since desk lamps generally can manually adjust the irradiation direction and irradiation distance of the lamp beads, therefore, the lighting area of ​​the desk lamp The brightness of the lamp changes with the irradiation direction and the irradiation distance of the lamp beads. If the lighting area is small, the brightness will undoubtedly become higher when the lighting area is larger.

Because everyone has different habits of using desk lamps, some people like to put the desk lamp closer, some like to place it farther away, some like the lampshade lower, some like the lampshade higher, so the brightness value of the desk lamp itself in the lighting area is uncertain, just rely on It is not enough to adjust the brightness of the lamp by the brightness value of the external environment