The ice and snow art landscape originated in Harbin. Due to the use of ice and snow as a performance carrier, it has formed a very unique landscape art culture. At present, it has developed into the world's largest ice and snow art landscape, and has formed a tourism culture industry with unique local characteristics.
1 Problems and challenges
Ice and snow art landscape is a combination of ice and snow architecture and lighting art. Ice and snow are carriers, and lighting is the soul of ice and snow landscape. The light of the snow and ice landscape has experienced such a development process from candlelight to incandescent to fluorescent. Although the ice and snow landscape sculpture and architectural art are becoming more and more perfect, the traditional light source of its application has seriously hindered the improvement of the ice and snow landscape art. The main reasons are as follows:
(1) The traditional light source can't realize the dynamic conversion effect. The static landscape lighting effect that has lasted for nearly 40 years has hindered the improvement of the ice and snow landscape art. The most urgent need is to transform the frozen ice and snow landscape into dynamic and The landscape art of vitality.
(2) The dysentery that cannot be recycled by traditional light sources has brought enormous financial pressure on the construction of ice and snow landscapes. Traditional incandescent and fluorescent lamps are fragile and unrecyclable, requiring repeated inputs every year, and heavy metals in scrapped light sources seriously contaminate the environment. Taking Harbin Ice and Snow World as an example, the number of fluorescent lamps applied in ice and snow landscapes is as high as 400,000 per year. After the landscape is melted, the fluorescent lamps are directly scrapped. The mercury in the lamps causes serious pollution of 540,000 cubic meters per year.
(3) Green energy conservation is the development trend and direction of the ice and snow art landscape tourism culture industry. An important cost investment in the world of ice and snow every year is the electricity cost. The traditional light source has low light efficiency, especially in low temperature operation environment. Therefore, the use of green energy-saving lighting source is an effective guarantee for energy saving in ice and snow landscape.
In this context, LED light sources have gradually become the development trend of ice and snow landscape lighting with its many advantages. Compared with traditional light sources, LEDs have outstanding advantages in terms of energy saving, longevity, high reliability, environmental protection, and easy dimming control. However, LED lighting is an emerging industry, especially in the application of ice and snow landscapes. Therefore, the development and development of LEDs using LED light sources must clearly understand the unique lighting characteristics and data indicators of LEDs in order to finally meet the demand. So let's take a look at what the ice and snow landscape has for LED lights.
2 Demand characteristics of ice and snow landscape lighting
From the perspective of the landscape design side, the most concerned issue is the light-emitting effect of the LED luminaire in the ice body, the saliency of the brightness and the stunt display effect that the lighting control system can achieve. The designer must pre-evaluate the design by understanding these contents and modeling the ice building modeling and lighting effects. The evaluation method adopts a combination of subjective evaluation and objective evaluation. From the perspective of artistic and ornamental, objective evaluation starts from the perspective of visual intensity and visual salience, and finally determines the overall artistic effect of the program. This is an indispensable process for establishing an objective evaluation system for the design of ice and snow landscapes. From the perspective of landscape construction, there are two main requirements: one is easy to install and the other is high reliability. Easy installation emphasizes high construction efficiency, no training, fast wiring, only one tool or even freehand; high reliability emphasizes the low failure rate of LED lighting system, ensuring high efficiency, smoothness and no need Change the installation process of the overhaul. The construction period of the ice and snow landscape is only 15 days, and it is constructed in an outdoor environment below minus 20 degrees Celsius. The extremely harsh construction environment and tight schedule requirements make the reliability and installation and debugging of LED lighting products convenient. Sexuality raises very challenging requirements and is an important guarantee for the smooth implementation of the project.
From the perspective of the landscape management owner, on the basis of meeting the requirements of the design and construction parties, it is necessary to ensure energy saving, good recyclability and low cost. Energy-saving requirements are better achieved, because the LED light effect itself is more efficient than the fluorescent light of the wrapped color film, and the difference in light efficiency is more prominent under low temperature conditions, coupled with the control factors of dimming and color change, so the energy saving of LED ice and snow landscape lighting The effect is much better than fluorescent lights. Good recyclability must reposition the luminaire's degree of protection and impact rating. Generally, the degree of protection must be at least IP67 and the impact rating should be above IK08. After the above two requirements are combined, it is necessary to increase the performance-price ratio of the products as much as possible to meet the bearing capacity of the landscape management owners.
All in all, the design side's requirements are "good performance", the construction party's requirements are "simple and fast", the business owner's request is "good quality and low price", and the LED lighting products provided by the manufacturer must be tailored according to the above characteristics. Customization can fully meet the needs of all aspects.
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