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The comprehensive renovation project of the North Square of Xi'an Railway Station is described as a "critical bypass surgery" in the heart of Xi'an. It is an important practice to improve the traffic organization, tourism services, and regional commercial functions of the area, promote the "station-city integration" vision, and represents a significant opportunity for the revival of the ancient city. We have realized automatic control of lighting and air conditioning in the entire area, linkage control of vehicle-related information, and innovatively achieved IP connection within the local area network, realizing a true "Internet + control" model.