The advantages of forest resources in Chengde provide a diversified material foundation for the development of understory economic industries. This article conducts a survey and research on the current development status of the understory economic industry in Chengde, summarizes the development model and experience of the understory economic industry, points out the problems in the development process, proposes rational countermeasures and suggestions, and provides reference for promoting high-quality development of forestry and building a strong forestry city.

The field of mechanical design and manufacturing in the modern industrial and economic development has a key importance, the current era of big data information technology, artificial intelligence has become the focus of the times around, the need to combine artificial intelligence technology with the field of mechanical design and manufacturing focus on promoting the mechanical design and manufacturing to the intelligent, flexible and sustainable development forward. This paper begins with a theoretical overview, followed by an analysis of the current status of the application of artificial intelligence in the field of mechanical design and manufacturing from machine vision, intelligent manufacturing, intelligent control, design optimization and simulation, and further analysis of its development prospects, including the trend of green manufacturing, human-computer interaction, Internet of Things deep fusion, and finally, through the application of the case and the summary, to explain that artificial intelligence is accelerating the mechanical design and manufacturing industry to the intelligent Finally, through application cases and summarization, it explains that AI is accelerating the development of machinery design and manufacturing industry to intelligentization, and expects to provide basis for related industries and fields and promote the long-term and stable development of machinery industry.

Currently, traditional civil engineering has matured, and the integration of information technology and civil engineering can generate new breakthroughs. Intelligent construction is the product of the combination of the two. Compared to traditional civil engineering, intelligent construction is more environmentally friendly, safe, and cost-effective in terms of construction, and is more in line with the needs of development. Based on this, this article combines relevant policies in recent years to analyze the current development status and path advantages of intelligent construction, providing reference for more people to understand and value intelligent construction.

 Since the 1970s, road disease detection at home and abroad has become a research hotspot. Intelligent detection of road diseases can effectively reduce traffic safety accidents and maintain social safety. Based on R-CNN and YOLO models, our team innovatively proposed a detection method of many algorithms, which further improved the detection efficiency. In terms of hardware, micro high-speed industrial camera, LPMS series and iAHRS-MO attitude sensor are adopted. At present, the team has completed a complete set of detection methods and structures, which can adapt to many future needs and changes.