A control method for dimming through tunnel vehicle sound detection

Abstract

The invention discloses a control method for dimming through vehicle sound detection in a tunnel, and relates to the technical fields of intelligent transportation and energy-saving control. The tunnel vehicle sound detection system adopted includes a dimming controller, a host and multiple slaves. The host and the slaves adopt a two-bus communication mode, combining the power supply line and the signal line into one, realizing signal and power supply The technology of sharing one bus saves construction and cable costs, and brings great convenience to on-site construction and later maintenance. The master-slave machine cooperates with the dimming controller to realize accurate, safe and efficient energy-saving control of tunnel lighting. The invention is especially suitable for the energy-saving control of expressway tunnels in the western region where the traffic flow is small and the traffic flow presents time-period.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation and energy-saving control, and in particular relates to a control method for dimming through vehicle sound detection in a tunnel. Background technique [0002] With the progress of society and the development of road traffic, highway tunnel construction is becoming more and more popular. Lighting is an important part of tunnel construction. Tunnel lighting can improve the road conditions in the tunnel and prevent traffic accidents caused by insufficient visual information for drivers. , is conducive to improving the tunnel capacity, and is an important facility to ensure transportation safety. [0003] In recent years, the number of highway tunnels has increased year by year, and the energy demand for tunnel lighting has further increased. The requirements for energy saving are also getting higher and higher. How to further improve the energy saving of tunnel lighting, in addit...

AI Technical Summary

Problems solved by technology

At present, the control of energy saving can only identify whether there is a car arriving at the tunnel based on the vehicle inspection equipment installed at the tunnel entrance, and can only vaguely determine the situation of the vehicle in the tunnel, and cannot accurately know whether the vehicle is driving and when it will leave the tunnel

In this way, the lighting cannot be accurately carried out, and the time of vehicles traveling in the tunnel is vaguely determined, which has certain inaccuracies. However, blindly prolonging the time of vehicles passing through the tunnel will cause a certain waste of lighting and shorten the time of vehicles passing through the tunnel. , there may be certain security risks

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