Driving safety double-control dimming method of tunnel LED lighting system
A LED lighting and driving safety technology, applied in the direction of electrical components, etc., can solve problems such as visual adaptability, complex control, and driver's inability to see clearly, so as to improve comfort and safety, high engineering application feasibility, and environmental protection. adaptable effect
Active Publication Date: 2020-06-30
SOUTH CHINA UNIV OF TECH +2
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Problems solved by technology
Due to the huge difference in brightness inside and outside the tunnel, there is a problem of visual adaptability when the driver enters the tunnel and leaves the tunnel
If the brightness in the tunnel cannot be effectively controlled, the driver will not be able to see the road conditions clearly, and accidents such as car accidents will easily occur
[0003] At present, tunnel LED lighting adopts the following three dimming methods: 1. Realize visual transition by changing the installation density of lamps, but this method cannot realize dimming according to environmental conditions, and the energy saving effect is poor; 2. Adopt segmental dimming technology , the brightness of each LED lamp is consistent, and the brightness of each segment changes suddenly, which makes it difficult for the driver to adapt to the change of brightness; 3. With the stepless dimming technology, it is necessary to adjust the brightness of each LED lamp in the tunnel, which is complicated to control , Difficulties in project implementation
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[0041] The content of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0042] Such as figure 1 As shown, the tunnel LED lighting system aimed at by this embodiment includes a luminance meter, a vehicle detector, a control center, a brightness control module and an LED tunnel light module; the tunnel is divided into n lighting sections, named lighting section i, i=1 ,2,...,n; The luminance meter is used to detect the luminance outside the cave and the luminance of each lighting section. The luminance meter for detecting the luminance outside the cave is installed 100m in front of the tunnel entrance, and the luminance meter for detecting the brightness of the lighting section is installed at each In the middle of the lighting section and at the junction of the two lighting sections, one is installed every 5m at the junction of...
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The invention discloses a driving safety double-control dimming method of a tunnel LED lighting system. The system comprises a luminance meter, a vehicle detector, a control center, a luminance control module and an LED tunnel lamp module. The method comprises the following steps: 1) the luminance meter and the vehicle detector transmit detection data to the control center; 2) the control center calculates intra-segment brightness and inter-segment brightness of each lighting segment, and determines control objects and address information of intra-segment control and inter-segment control; 3)the brightness control module sends a control signal to the LED tunnel lamp module according to the address information; and (4) the LED tunnel lamp module receives the control signal and adjusts thebrightness of the LED tunnel lamp, so that the actual brightness of the lighting section reaches the brightness calculated in the step (2). The method has the advantages of being flexible in dimming,high in environmental adaptability and easy in engineering implementation, and is beneficial to improving the driving comfort and safety.
Description
technical field [0001] The invention relates to the technical field of tunnel LED lighting, in particular to a driving safety dual-control dimming method for a tunnel LED lighting system. Background technique [0002] Compared with other lighting systems, LED lighting system has excellent performances such as high luminous efficiency, long service life and low energy consumption, and is being widely used in tunnel engineering. Due to the huge difference in brightness inside and outside the tunnel, there is a problem of visual adaptability when the driver enters the tunnel and leaves the tunnel. If the brightness in the tunnel cannot be effectively controlled, the driver will not be able to see the road conditions clearly, and safety accidents such as car accidents will easily occur. [0003] At present, tunnel LED lighting adopts the following three dimming methods: 1. Realize visual transition by changing the installation density of lamps, but this method cannot realize di...
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IPC IPC(8): H05B45/10
Inventor 张波李思琪丘东元张新斌魏佳北李敏王兆延臧继成邱念领李阿雷黄正荣廖一明许金双余循海谢家勇杨奎陈艳峰
Owner SOUTH CHINA UNIV OF TECH