An intelligent dimming controller in an LED shadowless lighting system

Abstract

The invention discloses an intelligent dimming controller in an LED shadowless lamp lighting system. A blurred visual image processing technology is adopted to conduct feature analysis and processing on images in a surgical view field, brightness information and chrominance information of a lighting environment are extracted, and current control parameters of LED light sources are calculated through an intelligent processing algorithm. Specifically, the images in the surgical view field are converted into digital image signals firstly, the signals are read into the system through a video image collecting module, then the signals are analyzed through an image analysis and processing module, illuminance distribution information and chrominance distribution information are extracted, corresponding illuminance feature vectors and corresponding chrominance feature vectors are extracted through an illuminance and chrominance feature extraction module, a shadow area generated by a shielding object is split through a blurred image dividing module, the driving current value of the corresponding LED light source is worked out through a blurred neural network, the driving current value is sent to an LED controller to adjust the brightness of a corresponding LED. Thus, the purposes of shadow eliminating, illuminance evening and constant-light control are achieved, automatic dimming control is realized, no manual intervention is needed, and shadows are completely eliminated.

Description

technical field [0001] The invention relates to the field of lighting, in particular to an intelligent dimming controller in an LED shadowless lighting system. Background technique [0002] At present, most of the shadowless lamps used in hospital operating rooms use ordinary heat light sources (such as incandescent lamps, tungsten halogen lamps, etc.), which have high heat generation, high power, and short life. It is easy to cause damage to the doctor's eyes. In addition, there is another kind of light source that uses fluorescent light, which belongs to cold light source. This type of light source has low energy consumption and high brightness, but the color temperature selection is single, the lifespan is similar to that of a hot light source, and the light decay is large, and the directivity is not enough. limitation. LED (Light Emitting Diode, abbreviated as LED) is a cold light source. Because of its advantages of uniform illumination, fast response, long life, and ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an intelligent dimming controller for LED shadowless lamp based on fuzzy logic, which solves the problems of inconvenient use and unsatisfactory adjustment effect in the existing technology. Intelligent dimming controller

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