基于国产软硬件平台的数字地图显示策略

Display Strategy of Digital Map Based on Home Software and Hardware Platform

推进国产软硬件平台应用，是国家战略和信息安全的需要。本文简介了国产软硬件平台的发展情况，针对基于该平台矢量地图显示及漫游慢的问题，开展了国产软硬件性能测试、矢量地图显示各环节时间分布测试和矢量地图显示性能优化试验，证实主要原因是国产CPU的性能低。为此，提出了显示瓦片地图的应用新模式，并对瓦片地图模式下如何实现查询量算和地图分析等问题提出了解决办法，从而实现国产软硬件平台上数字地图的实用化。

It is the requirement of state strategy and information safety to promote the application of home software and hard- ware platform. This paper briefly introduces the development of home software and hardware platform. Based on the problem of slow speed in traditional vector map displaying and roaming, the paper conducts the experiments on home software and hardware capacity, time distribution of every aspect in map display and vector map display capacity optimization. The experiments show that the main cause of slowness is poor performance in CPU. Therefore the paper puts forward a new application mode of tile map display and the solutions to deal with the information query, map measurement and map analysis. Thus it realizes the practicabili- ty of digital map based on the home software and hardware platform.