Since 2014, my country has put the construction of smart tourism on the agenda. Local governments have actively responded to the central government's call and established smart tourism service platforms in their local areas. Among them, the "Nanjing Smart Tourism Tourist Assistant" launched in November 2015 is an outstanding representative. The platform is divided into nine sections: information, routes, scenic spots, navigation, leisure, catering, shopping, transportation, and hotels. It provides tourists with scenic spot introductions, activity information, self-driving tour routes, shopping mall promotions, real-time road conditions, train tickets and other tourism information. Looking at the smart tourism platforms established in various places, there are not many that can provide real-time feedback information to tourists in scenic spots. With the increase in the number of tourists every year, the load of scenic spots has also been increasing, especially during the Golden Week, when it is really crowded. Many small attractions in vietnam news latter scenic spots have long queues. Although some scenic spots have rolling electronic display screens at the entrance to tell tourists how long it takes to visit this attraction, tourists often need to approach the attraction to see it, which invisibly wastes a lot of tourists' time. Therefore, strengthening the construction of real-time feedback systems in scenic spots is crucial to meet the needs of tourists through online platforms, enhance experience and interaction, and provide convenient smart tourism.