交互式电力数据可视化与分析

Interactive Power Data Visualization and Analytics

并排法是传统的比较可视化中较为经典的方法,即将多个集合成员或不同的结果在一个显示空间中并排显示.本文所使用的是具有时序性的异构、高维数据,包括全国GDP数据及中国西南某省43个企业或商场的用电数据,以及天气数据.考虑到数据量庞大,并排可视化方法不具有空间协调性与视觉直观性,因此,本文使用重叠法与显式编码的比较可视化技术,使用户可自由选择日期,将多天的采样点数据重叠在一个显示空间中,避免了视觉混乱,使数据分析更加简洁高效.

Power data have the characteristics of time-sequence,heterogeneity and high-dimension,while the parallel visualization method universally used in the analysis of power data lacks of both spatial coordination and visual intuition.In view of these properties and limitations of traditional methods,an interactive visualization method is designed for power data comparison.This method makes use of the technology of superposition and explicit encoding comparison visualization to compare and analyze multi-day sample data in a carefully designed circular layout,avoiding visual confusion,improving the effect of multi-view comparison,making the process of data analysis more concise and efficient.In the experimental part,taking the data of GDP,electricity consumption and weather data of 43 enterprises or shopping malls in a province of China as examples,this paper validates the method we presented and compares it with the traditional method.The result indicates that the proposed method is more intuitive and flexible in data analysis.