Visual Representation Method Of Landslide Hazard For Public Education

The general public is the group most threatened by landslide disasters.Disaster education to the public can enhance their risk awareness.This is an important part of the process of disaster prevention and mitigation,as well as an important way of risk prevention.At present,disaster education is mainly aimed at students and rescue personnel,and its education methods are concentrated on textbook teaching and professional training,and the content is highly professional.At the same time,there is a lack of effective communication channels between educators and the public,and it is difficult for the public to intuitively recognize landslide disasters.At the same time,the current visual representation of landslides lacks the overall representation of landslide disasters and the performance of external causality,and it is difficult for ordinary people without professional backgrounds to obtain effective information.In response to the above problems,this paper proposes a public education-oriented visual representation method of landslide hazards,focusing on the study of the dynamic and static visual representation framework,as well as key technologies such as landslide hazard knowledge illustration and conceptual diagram instantiation to achieve an overall description of the landslide process.The performance of external cause and effect.The main research work and results of this paper are as follows:(1)Establish a visual representation framework for landslide disasters for public education.By studying the application of visual representation in knowledge dissemination,analyze and sort out the visual representation form of landslide knowledge dissemination to the public,and combine the characteristics of landslide disaster and public education to construct a visual representation framework that combines dynamic and static.Combining the advantages of different visual representation methods in organization,representation and dissemination of knowledge,to realize the efficient dissemination of landslide disaster knowledge to the public.(2)Construct a conceptual diagram model structure of landslide disaster knowledge.First,study the object characteristics and association relationships of the whole process of landslide disasters,and then discuss the expression needs of landslide disasters for public education,sort out the abstract concepts of landslide disaster process,clarify the timing characteristics and causal relationship of landslide occurrence,and design the cross-linking relationship and hierarchy of landslide disaster knowledge Structure,establish a conceptual map model of landslide disaster knowledge for public education,and realize the structured organization of landslide disaster knowledge.(3)A knowledge-guided dynamic expression method for the whole process of landslide disasters is proposed.Based on the graphical representation of the conceptual map model of the landslide disaster knowledge,discuss the instantiation and filling of elements such as the location,time,and process of the landslide disaster,study the three-dimensional animation technology used to express the landslide disaster instance,and propose a three-dimensional dynamic expression method for the entire process of the landslide disaster.Visual representation of landslide disaster for public education.(4)Develop prototype systems and conduct case experiments.Based on the integration of the above research results,using QT and Open Scene Graph to design and develop a prototype system for dynamic visual expression of the entire process of landslide disasters,and select 6.18 Diexi Town,Maoxian County,as the case area and carry out experimental analysis.And further compare and analyze the experimental results.The experimental results show that the method in this paper can quickly and effectively construct the visual content of landslide disaster knowledge,and effectively and quickly help the public understand the knowledge of landslide disasters.