Research And Design On Intelligent Control Module For Outdoor LED Display Parameters

With the impact of environmental changes by the weather,the visual effects of the outdoor LED display's brightness, contrast that people can watch would be a certain degree of decline, resulting in the information displayed colors dim, blurred, affecting view and appreciation of the entire LED display screen.This paper analyzes the mechanism of an impact that the atmospheric absorption, scattering, environmental illumination make on brightness and contrast of outdoor LED display screen. In sunny, foggy, rainy day under various weather conditions, the transmission attenuation from the atmosphere and visual characteristics of the human eye's subjective starting theoretical analysis of the brightness and contrast adjustment, in turn, described the LED display brightness and contrast control principle. Based on this control principle, the design environment based on real-time display of meteorological factors determine the parameters of brightness and contrast control module PC software algorithms, and synchronization for outdoor LED display control system designed the corresponding transmission circuit board and environmental monitoring hardware modules.System debugging that: This design of hardware modules can be easily and quickly embedded into the existing LED display synchronization control system, simultaneously implanted the appropriate software algorithm module into control software, achieved LED display brightness and contrast on the weather adaptive control with environmental change.