Solar led street lamps generate electricity by converting sunlight. They are outdoor lighting fixtures automatically controlled by intelligent controller. The intelligent control process can be divided into the following steps:
(1) light control on -- light control off: at dusk, when the light intensity is lower than a certain value, the light source will be actively lit; at morning, when the light intensity is higher than a certain value, the light source will be actively subsided.
(2) light control on and time control off: at dusk, when the light intensity is lower than a certain value, the light source will be actively lit up and start timing; when it reaches the predetermined value of the time when the light is turned off, the light source will be actively subsided.
(3) time control-time control-off: at dusk, the light source will be actively lit when reaching the preset time to turn on the light; at early morning, the light source will be actively subsided when reaching the preset time to turn off the light.
(4) dusk - early morning when both ends are open: at dusk, when the light intensity is lower than a certain value, the light source will be actively lit, and when it reaches the predetermined time to turn off the light, the light source will be actively subsided; Zero morning when arrived at the booking time, the light source active lighting, early in the morning when the light intensity is higher than a certain value, the light source and active calm.
(5) the main auxiliary light dual control: the light bonus main light and auxiliary light two ways, at dusk when the light intensity is lower than a certain value, the light source active lighting, the main auxiliary light can be switched off at the moment control, to combine out the main auxiliary light is not the same form of work.
The so-called modular, refers to the light source, cooling parts, driving power and other synthetic modules, mass production, according to fixed parameters and mold to produce standardized LED lighting products.
At present, there are not a few enterprises that do modularization. In the light source module scheme with its own heat dissipation, most of them directly expose the lens made of polymer material to sunlight, and use silica gel to seal the module. At the same time, the wires connected with the module are also directly exposed to sunlight, and the long-term exposure of ultraviolet light to these materials will have a significant impact on the properties of these materials, such as lens yellowing, silica gel deterioration leading to decreased sealing performance, wire aging, etc. In xu min's opinion, cost and price are not the most important factors for outdoor street lamps, but reliability.
A good standardized light engine can solve many problems in the field of high-power led lighting, such as heat dissipation, waterproof, serialization, maintainability and universality. According to Chen kai, general manager of huapu yongming, we should make the module IP68. The IP68 closes the whole thing up, like a traditional light bulb, including boiling water. "It was done, and it's now in mass production." "Chen kai said.
Once the reliability is guaranteed, more attention should be paid to the role of modules in the uniqueness of LED street lamps and the superior performance compared with traditional street lighting.
Nowadays, there are not many street lamps with special features. I believe that few people will have an impression on the street lamps in a certain section of highway, because they all look the same, a pole with a flat plate and a lamp shade. And LED, as the "high precision" of electronic products in essence, is completely possible to make a difference, so that each road has the characteristics of each road, so as to make people shine.
In fact, from the perspective of modular design, whether it is the modularization of light source or light engine, it provides a wide space for design. In the future, different modules can be selected for design according to different application requirements. Therefore, LED street lamp enterprises, including outdoor high-power module manufacturers, still have much to do.