CAJ | 학술논문

随着网络地图服务应用的延伸及并发访问数不断增加，网络地图服务平台的性能需求越来越高。地图缓存技术有效地减轻了服务器计算负载和网络传输负担，极大地改进了客户端和服务器端的交互效率，提升了网络地图服务应用水平，改善了客户端用户体验，是网络地图服务领域的研究热点之一。但其仍存在地图缓存制作时间长、占用空间大以及瓦片数据更新困难等技术难点。本文通过对目前主流的研究成果进行整理与归纳，重点分析了地图缓存技术各个环节的研究内容和现状以及分布式环境下的地图缓存技术研究进展，挖掘出了地图缓存技术在静态缓存瓦片数据更新、静动相结合的缓存策略切换、按需切图响应效率优化、文件系统与数据库组织模型同步、混合模式存储设计、大范围瓦片数据更新以及分布式环境下的地图瓦片数据弹性存储等方面可进一步提升的研究内容和技术环节，期望为后续的研究提供参考。
수착망락지도복무응용적연신급병발방문수불단증가，망락지도복무평태적성능수구월래월고。지도완존기술유효지감경료복무기계산부재화망락전수부담，겁대지개진료객호단화복무기단적교호효솔，제승료망락지도복무응용수평，개선료객호단용호체험，시망락지도복무영역적연구열점지일。단기잉존재지도완존제작시간장、점용공간대이급와편수거경신곤난등기술난점。본문통과대목전주류적연구성과진행정리여귀납，중점분석료지도완존기술각개배절적연구내용화현상이급분포식배경하적지도완존기술연구진전，알굴출료지도완존기술재정태완존와편수거경신、정동상결합적완존책략절환、안수절도향응효솔우화、문건계통여수거고조직모형동보、혼합모식존저설계、대범위와편수거경신이급분포식배경하적지도와편수거탄성존저등방면가진일보제승적연구내용화기술배절，기망위후속적연구제공삼고。
Absrt act:The performance demands of web map service platform are higher and higher, with the number of concurrent access for web map service increasing.Map cache technology cuts map into certain specification pictures according to the mathematical rules in ad-vance and saves the map tiles to the map servers, map servers quickly return titles corresponding to the current area according to the request parameters, so that it can achieve dynamic display effect using static images.Map cache technology is one of the hot spots in web map service areas, effectively reducing the server computing load and network transmission burden, greatly improving the interac-tive efficiency of client and server, enhancing the application level of web map service and improving the experience of client users. But there are still some technical difficulties to be solved, such as it takes a long time to make map tiles, a large number of map tiles data occupy a lot of space, it is very difficult to update the map cache data and so on.In this paper, we dig out the researches and technical aspects can be enhanced for map cache technology in updating the static cache tiles data, switching the cache strategy com-bined with static cache strategy and dynamic cache strategy, optimizing the cutting response efficiency of map cache on demand, de-signing the mixed storage mode, updating a wide range of tiles data, syncing the file system organization model and database organiza-tion model, storing the map tiles data elasticity under distributed environment, and hope to provide a reference for the future studies, with collating and summarizing the current mainstream researches, emphatically analyzing the researches and research status of map cache technology in all aspects and distributed environment.