Tunnel illumination intelligent control system and control method

Abstract

The invention discloses a tunnel illumination intelligence control system and a control method. The tunnel illumination intelligent control system comprises an outside-tunnel luminance meter, an inside-tunnel segment luminance meter, a radar vehicle detector, a tunnel lamp, a light adjustment controller, a segment main controller and an upper computer. The outside-tunnel luminance meter, the inside-tunnel segment luminance meter, and the radar vehicle detector are in wireless communication with the segment main controller through a ZigBee module and transmits an outside-tunnel brightness value, an inside-tunnel brightness value, a vehicle speed and a traffic flow to the segment main controller; the segment main controller is in wireless communication with the light adjustment controller through the ZigBee module and is in wireless communication with the upper computer through a GPRS module; and the segment main controller controls the light adjustment controller to adjust the working state of the tunnel lamp according to a light adjustment control order transmitted by the upper computer. The invention realizes stepless light adjustment without unnecessary electric energy waste, creates good tunnel vision environment, and reduces the wiring waste. The transmission signals are not affected by the continuity of the circuit, which is easy to control and operate.

Description

technical field [0001] The invention relates to the lighting field, and relates to an intelligent control system and a control method for tunnel lighting. Background technique [0002] The tunnel lighting is divided into four sections: the entrance section, the transition section, the middle section and the exit section. There are two transition sections, which are set before and after the middle section. The conventional tunnel lighting control system is controlled by the PLC system, which is usually carried out according to the maximum traffic volume designed. This control method generally has 4 levels of control modes (cloudy, sunny, heavy cloudy, cloudy) , the basic lighting section has day and night 2-level control. Some are combined with light-sensing control, that is, the lights will automatically turn on and off when the set illuminance value is reached. However, this hierarchical control mode is too simple and cannot be adjusted in time according to the actual con...

AI Technical Summary

Problems solved by technology

However, this hierarchical control mode is too simple, and cannot be adjusted in time according to the actual conditions of the tunnel environment, resulting in waste of electric energy, or unsatisfactory lighting effects leading to traffic accidents

In addition, due to the particularity of tunnel lighting, drivers will have black hole and white hole effects at the entrance and exit of the tunnel. In order to eliminate the driver's "dark adaptation" and "light adaptation" and other visual problems, it is necessary to strengthen the lighting at the entrance and exit sections. It is a waste of electricity and the lighting effect is not good

[0003] On the other hand, PLC signal transmission has many disadvantages, such as: the distribution transformer has a blocking effect on the circuit carrier signal, so that the power carrier signal can only be transmitted within a distribution transformer area; there is a large signal loss between the three-phase power lines; Power lines have their own inherent pulse interference; power lines cause high clipping of the carrier signal

In addition, the wiring loop is complex and cumbersome, causing serious waste and inconvenient use

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