HBase-based tile data storage and index establishment method, reading method and access device

• Main Authors: TAI XIANQING, CUI GUANGJI, GE SIYAO
• Format: Patent
• Language: Chinese; English
• Published: 30.10.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides an HBase-based tile data storage and index establishment method and a data reading method. The method comprises the steps: based on quadtree coding, adopting tile hierarchy + quadtree coding as a spatial index of tile data, so that the tile data and neighborhood four-direction tiles of the same hierarchy are adjacent or close to each other in at least two directions in physical storage; encoding and storing the tile data again, so that the tile data is adjacent to or adjacent to the high-level neighborhood tile data and the low-level neighborhood tile data in physical storage; when the tile data is read, selecting different neighborhood tile pre-reading strategies based on the tile hierarchy, and caching the neighborhood tile data. According to the method, the tile data and the neighborhood tile data thereof are arranged adjacently or adjacently in physical storage, so when the tiles are read, the query time of the to-be-read tiles and the neighborhood tiles thereof is shortened, the ne