基于Open API WebGIS的海洋渔业环境保障服务产品发布系统研究  

RESEARCH ON MARINE ENVIRONMENTAL PROTECTION SERVICES SYSTEM OF FISHERY PRODUCTION SAFETY BASED ON OPEN API WEBGIS

作　　者：蔡文博[1] 滕骏华[1] 田杰[1] 刘旭[1] 刘建伟 

机构地区：[1]国家海洋环境预报中心,北京100081 [2]北京博阳世通信息技术有限公司,北京100096

出　　处：《计算机应用与软件》2017年第9期72-76,91,共6页Computer Applications and Software

基　　金：海洋公益性行业科研专项(201205006)

摘　　要：针对传统的预报图、短信无法满足渔民动态获取海洋预警报服务的需求,基于Open API设计了海洋渔业环境保障服务产品Web GIS发布系统。系统整体框架采用数据层、服务层、表现层、用户层的四层B/S结构,利用高德开放地图API和Java Script开发语言实现了渔场海浪预报、渔场海面风预报和台风警报面向公众的发布功能。由于网络带宽的限制,系统通过一种计算坐标偏移量并映射为ASCII码的矢量数据压缩方法,较好地实现了渔场预报数据的Web传输。以某渔场海浪预报产品XML格式中间交换文件为例,数据压缩率达到38.5%。In view of the traditional forecast map and SMS cannot meet the needs of the fishermen＇s dynamic access to the early warning service,marine environmental protection services system of fishery production safety based on open API Web GIS is proposed. The whole framework based on B/S mode consists of the data layer,service layer,presentation layer and user layer. The primary realizing functionalities including issues fishery ground sea surface wind forecast,wave forecast and typhoon warning products to the public are developed by Auto Navi Map API and Java Script programming language. Due to the limitation of network bandwidth and cost,the system can realize the web transmission of fishery ground forecasting data through a kind of vector data compression method which is used to calculate the offset of geographic coordinates and then mapped it to ASCII code. Taking the XML format swap file of a fishery ground wave forecasting product as an example,the data compression rate reached 38. 5%.

关 键 词：OPEN API WEBGIS 地图API 海洋渔业 矢量数据压缩 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]