DALI system in Guangzhou CITIC Tower

Guangzhou CITIC Tower 391 meters

Guangzhou CITIC Plaza (CITICPLAZA) is located in the new city center of Tianhe District, Guangzhou City, China. It includes a 80-story skyscraper CITIC Building, two 38-story annex buildings, a 4-story shopping mall podium and a 2-story underground parking lot. It is close to Guangzhou. East Railway Station. Its skyscraper is the second tallest building in Guangzhou. It was completed in 1996 and is one of the landmark buildings in Guangzhou. It is currently the office location of many Fortune 500 companies in Guangzhou. Its lower floors are commercial centers, including high-end consumer shopping malls such as Guangzhou Friendship Store. It used to be the tallest building in Guangzhou.

The main floor and sub-floor of CITIC Plaza are shaped like a flying eagle, and the sub-floor is like its two wings. From the overall point of view, the outer wall of the main building is surrounded by a glass curtain wall. Due to the glass curtain wall, it is not suitable to use direct lighting. In order to better reflect the overall magnificent image of the CITIC Building, its outline must be displayed first. In order to be more lively, the flickering control was performed to form flowing water or dynamic ribbons. It was decided to use optical fiber lines to outline the outline of the main building, and to use the flexible and changeable (multiple colors, gradient characteristics) soft and soft characteristics of optical fibers to make the image of the main building stand out. Spectacular yet subdued visuals.

Due to the magnificent exterior walls at the bottom of the main building and the group buildings, floodlighting can be used to reflect the concave-convex design on the top of the main building. The hierarchical relationship makes the outline of the building clearer, and further reflects the spectacular and meticulous integration of the building. The exterior walls of the apartment buildings in the annex building are mostly made of solid walls and light-transmitting glass, so direct lighting can be used. On both sides of the buildings and the surrounding area, each building can be projected with metal halide lamps to show its wide wings. The top of the podium can be projected by high-pressure sodium lamps, and it is golden yellow, which further outlines its noble and generous shape.

On the top of the main building, in addition to the concave and convex parts outlined by optical fibers, the top of the main building mainly uses a high-power metal halide lamp reflective screen to set off the top building structure. , The water-based gas on the protective masonry of the cooling tower of the air conditioner and the top cooling tower creates a cloudy scene, which brings out the beauty of the hardness and softness at the top.

The side and facade of the main building are mainly connected with optical fibers, which are divided into vertical optical fibers and horizontal optical fibers. The vertical optical fibers are installed on the periphery of the main body, and the horizontal optical fibers are installed on the vertical surface (sides) of the main body. Because the optical fiber itself has the characteristics of flexibility, light weight and small size, its fixing method and construction are also relatively simple, safe and fast. The optical fiber is illuminated by a light source generator, and the power of each light source generator can illuminate the bidirectional optical fiber. The light source generator is connected with the interlayer power supply by chain type and radiation type, and is installed on the ceiling.

In 2015, Vteck participated in the upgrade of the lighting system of CITIC Tower, and upgraded the original lighting system to the DALI master control system. It fully realizes the lighting control of different floors from the main console, which saves energy to the greatest extent and reflects the superiority of artificial intelligence.

Vertical fiber, because the vertical fiber is installed on the edge of the outer wall, and the light source generator is installed indoors, so it is necessary to replace the glass curtain wall with small and medium holes, and the fiber is wound into the room through the small hole to connect with the light source generator. The Jianxiang optical fiber is installed on the frame outside the glass curtain wall and is riveted with de-cored rivets. For each horizontal optical fiber of the light source generator, since there are grooves on each floor of the side during the architectural design, the optical fiber can be placed inside and emit light through the glass curtain wall. A light source generator is installed at each end of the length. Starting from the sixth floor, a transverse optical fiber is arranged on each of the four sides of every third floor to outline the side shape. The brightness of the optical fiber surface is so that the light through the glass is soft and not dazzling in the night sky. Since the lighting project requires the landscape lighting to be varied, it is not enough for the optical fiber to emit light. The color change is generated by the color wheel of the light source generator. The control colors are green, white, and yellow. Anti-interference with software. The control line of the light source generator is connected in series with ordinary twisted pair lines. The color wheel has the function of fast and slow change, forward and reverse and skip function. The color and synchronization of the light source are controlled by the computer, resulting in the change and shape of the color.