嵌入式电子地图数据分块组织研究  

Study of Data Segmentation and Organization Based on Embedded Device

作　　者：姚萌萌[1] 沈永增[1] 

机构地区：[1]江南计算技术研究所

出　　处：《电子技术（上海）》2012年第11期8-11,共4页Electronic Technology

摘　　要：文章研究了基于嵌入式地图数据分块组织。嵌入式设备相对于PC机,CPU运算速度较慢,内存较小;而嵌入式设备处理大量的数据时,CPU和内存资源相对来说比较紧张。实现基于嵌入式电子地图的功能,数据存取策略比较重要。本文提出了一种电子地图数据分块组织的方法,并且使用双缓冲技术在QT/Embedded平台上实现了嵌入式地图在设备上的漫游,放缩等功能[1-2]。This paper deals with the map data segmentation and organization based on embedded device. Compared with PC, the operation speed of the CPU of embedded device is slower and the memory is not so strong, causing a memory tension during the processing of massive data. Therefore, to fulfill the function of embedded electronic map a good data access method becomes esser^tial. This paper presents a method for the data segmentation and organization based on embedded device. By using this method and double-buffer technology, the map on embedded device can be roamed and zoomed in the platform of QT/Embedded.

关 键 词：嵌入式地图 数据分块组织 QT EMBEDDED 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]