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Summary: Unmanned technologies such as unmanned aircraft, unmanned driving, unmanned shops, unmanned hotels and unmanned banks have great potential and have many points of convergence with the needs of economic development in Northeast China. Despite the challenges of technology adaptation to the environment, market awareness and talent reserve in the process of helping the economic development in Northeast China, unmanned technology can become a powerful driving force to promote the economic development in Northeast China and provide new development opportunities for the revitalization of the old industrial bases in Northeast China as long as active coping strategies are adopted, such as optimizing technology, strengthening publicity and talent training.Unmanned shops, hotels and banks are emerging business service models. Unmanned stores adopt advanced automation equipment and intelligent identification technology, so customers can choose and buy goods and complete the settlement without manual cashier. In some business districts in Northeast China, unmanned stores can reduce operating costs and improve shopping experience. Unmanned hotels provide convenient accommodation services through smart door locks and self-service check-in systems. Northeast China is a region rich in tourism resources. Unmanned hotels can meet the needs of tourists at different times and improve the operational efficiency of hotels. Unmanned banks provide customers with self-service financial services, such as account opening, transfer and wealth management, which is convenient for people in Northeast China to handle financial affairs, and can also improve the service efficiency of banks and the flexibility of network layout.2. Shortcomings of market cognition and talent reserve

In the northeast, people's market awareness of unmanned technology may be relatively insufficient, and related professionals are also scarce. In order to improve market awareness, extensive publicity and promotion activities can be carried out, such as holding unmanned technology exhibitions and technical lectures. In terms of talent reserve, universities and vocational colleges in Northeast China can cooperate with enterprises to set up professional courses related to unmanned technology, cultivate technical talents to meet local needs, and attract foreign talents to flow into Northeast China to provide intellectual support for the development of unmanned technology in Northeast China.The climate in Northeast China is cold, and the terrain in some areas is complex. For example, the battery life of drones decreases in a low temperature environment, and the sensors of unmanned vehicles may fail in ice and snow weather. In view of these problems, scientific and technological enterprises need to intensify research and development to develop unmanned scientific and technological products that adapt to the special environment in Northeast China. The applicability of unmanned technology products in Northeast China can be improved through the research and development of cold-resistant battery technology and the design of ice and snow protection for sensors.

Unmanned Technology: Injecting New Vitality into the Sustainable Development of Northeast Economic Cycle1. UAV: a generalist in the sky1. Technology adapts to the challenges of the special environment in Northeast China.