Feedforward control method for illumination adjustment according to tunnel illumination requirement

A technology of feed-forward control and lighting adjustment, which is applied in the direction of lighting devices, light sources, electric light sources, etc., to achieve the effect of optimizing safe and energy-saving operation and saving energy consumption

Inactive Publication Date: 2013-11-20
TIANJIN UNIV
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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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  • Feedforward control method for illumination adjustment according to tunnel illumination requirement
  • Feedforward control method for illumination adjustment according to tunnel illumination requirement
  • Feedforward control method for illumination adjustment according to tunnel illumination requirement

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with embodiment.

[0020] In order to solve the optimization control problem of tunnel lighting energy saving and safety, the present invention according to figure 1 Build a tunnel lighting monitoring system, including central monitoring host, brightness detection unit, vehicle flow rate monitoring unit, ambient temperature sensor, communication bus, area controller, single lamp control power supply with communication bus, and LED lamps. The central monitoring host adopts an industrial computer, runs the central monitoring management software and communication interface software, and transmits the detection parameters of the vehicle flow rate detection system, brightness meter and temperature sensor to the central monitoring host through the communication bus. The central monitoring host sends the area control command to each area controller through the communication interface, and then controls and ad...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 何熠吴爱国冯守中辛长国
Owner TIANJIN UNIV
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