Lanzhou City Planning Exhibition Hall is located at No. 23 Renmin Road, North Bank of the Yellow River. The total construction area is 16,460 square meters, with 4 floors above ground and 1 underground floor. The architectural shape is defined as the Yellow River stone, which makes the building and the Yellow River merge into one, showing the profound and profound Yellow River culture of Lanzhou. It is a “planning art museum” that integrates indoor exhibition, architectural concept and urban characteristics.

A 422m2 LED digital sandbox built by LINSO LED is placed in the center of the exhibition hall. The full LED digital naked eye 3D effect makes visitors more intuitive, more vivid and more convenient to understand Lanzhou's planning blueprint. This is currently the largest LED digital sandbox in the Midwest, and it also marks the breakthrough of the LED digital sandbox and the technological leadership in the industry.

The sand table model is a common form of exhibits in the exhibition, which has the advantages of intuitiveness and image. However, because it does not have interactive functions, the traditional sandbox model only uses the model to perform architectural or subject matter expression, while the multimedia interactive electronic sandbox is a collection. The multimedia interactive control system, power system, projection system, acoustic system, optical system and other comprehensive performance themes, the project is introduced and promoted. It is a new model product that combines multimedia technology with traditional monotonous static model to make the model have dynamic interactive function, and adds a number of new technologies to enrich the content of the model and the expression of the vivid model. The application of computer intelligent display control system in the model sandbox display environment is a high-tech and creative design. It enables the public to understand the content displayed on the model sand table vividly, vividly, quickly and accurately, and effectively realize the purpose of showing it to the public. Place the touch screen all-in-one next to the model or insert the touch screen into the model, automatically present or be demonstrated by the guide and the visitor touching the screen with your finger. If you are equipped with a large LED screen or projection, we can connect the computer signal and audio signal in the touch screen all-in-one (ipad or mobile phone) to the big screen and speakers, and simultaneously display the text and pictures of the demo on the big screen. , video animation, commentary and other content, convenient for visitors to browse, so that the design, performance renderings, video animation and physical model corresponding to each other, explain to a certain building, the display of various materials of the building, while in the entity The model uses lights to express the building, which will give the audience a deeper impression.