Design And Research Of Expressway Information Visualization Based On User Cognition

Recently,with the continuous development of data acquisition technology,data storage technology and computer operation ability,the value of data has been gradually valued by various industries.In the transportation industry,expressway is a high-grade highway that can reflect the traffic development level of the country and region.It is one of the important channels of transportation with the main characteristics of large capacity,low transportation cost and low energy consumption.This paper attempts to discuss the construction of information visualization system from the perspective of cognitive psychology.Starting with data transformation and data presentation in information visualization,the concepts of distributed cognition and external representation in cognitive psychology are introduced to guide the process of data modeling and visualization.While meeting the requirements of visualization,new perspectives are proposed.Firstly,the process of information visualization is put forward from the development and research direction of information visualization.Based on the theory of distributed cognition in cognitive science,the external representation of user cognitive process under the influence of information technology is analyzed.According to the classification of the target users of the expressway information visualization system,the thinking model,cognitive process and cognitive characteristics of the users are proposed.This paper summarizes the types of expressway information and expounds the related technologies such as data preprocessing,data storage and front-end implementation method,which provides theoretical basis and technical support for the design and research of the data presentation stage of the expressway information visualization system in the following paragraphs.Secondly,the business logic and interactive interface of the expressway information visualization system are analyzed and designed based on the user's thinking model.According to the user's data requirements for each dimension of expressway information,the visualization encoding methods are summarized for different task stages in the user's thinking model.Based on the highway information encoded visually,the interactive interface layout and interaction mode of highway information visualization system are analyzed for different target users.Finally,based on the design practice of the sub-project of constructing the expressway information visualization system under the traffic informatization project in Heilongjiang Province,the functional design of the information visualization system and the interface design of the interactive interface are realized.And through testing the task completion condition and satisfaction of user in the use of the process,it shows the design of this project has a good usability and user experience.