Feedforward control method for illumination adjustment according to tunnel illumination requirement

Abstract

The invention belongs to the technical field of lighting equipment in tunnels, relating to a feedforward control method for illumination adjustment according to tunnel illumination requirements. The method comprises: 1) detecting luminance out of a hole to obtain the value of luminance out of the hole, and reducing the value of luminance to obtain the luminance of an inlet section; 2) dividing a transition section into three transition subsections, setting the luminance reference values of each transition subsection, a middle section and an outlet section by taking the luminance of an inlet section as the basis, and giving a luminance demand curve; 3) according to the luminance requirement curve, setting the detection value of luminance in the hole to realize the luminance feedback control to the whole LED tunnel lamp; and 4) by taking the position in the tunnel as a parameter, and substituting the luminance demand curve to obtain the average luminance of the corresponding position, determining the magnitude of the controlling quantity of each lantern according to the luminous flux formula, and carrying out feedforward control on the luminance of each lantern. The invention prolongs the service life of the lantern and saves energy consumption.

Description

technical field [0001] The invention belongs to the technical field of lighting equipment in tunnels, in particular to an intelligent control method for tunnel lighting. Background technique [0002] For a long time, conventional products such as high-pressure sodium lamps, fluorescent lamps, high-pressure mercury lamps, and halogen lamps that have been used in tunnel lighting have become less and less suitable for people because they contain harmful substances such as mercury, and must be powered on all year round in the tunnel, which consumes a lot of energy. In pursuit of environmental protection and energy saving, people urgently need to find new energy-saving and environment-friendly lighting sources. [0003] As a new type of solid light source, LED lamps are energy-saving, long-life and high-utilization. Another superior feature is the instantaneous controllability of brightness. This feature not only enables lower energy consumption and longer life, but also lower ...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the defect that the existing tunnel lighting control system cannot perform on-line control and adjust the brightness in the tunnel according to the actual brightness requirements, the present invention proposes a control method combining feedforward and feedback. Brightness, traffic flow rate and other parameters, according to the standard to determine the illuminance demand curve in the tunnel

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