基于瓦片金字塔模型的矿山重大危险源监测系统设计与实现

发布时间：2018-03-14 16:24

本文选题：瓦片地图　切入点：金字塔　出处：《武汉工程大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着计算机技术和地理信息技术的不断发展，特别是随着计算机网络技术的快速发展，计算机与地理信息这两者的联系越来越紧密，WebGIS的出现就是这两者融合的产物。伴随着传统的基于CGI,Server API,Java Applet等技术应用越来越广泛，其缺点也更加显露，即网络传输数据的速度不能满足人们快速浏览地图服务的需求。其原因是因为传统的WebGIS的工作原理是实时生成图片。随着Google Earth的出现，瓦片地图金字塔模型也逐渐被人们所认识和了解。它是将配置好的地图按照一定的规则切图，存储到数据库服务器中。它可以用图片代替动态的地图服务，所以整个系统的速度得到了明显的提高，用户的体验效果明显增强。同时伴随着A j a x技术的出现，将其应用于浏览器客户端，使得用户异步传输数据的体验更加明显。因此基于瓦片地图的WebGIS系统应运而生。我国是一个地质灾害频繁的国家，特别是大量矿山开发，每年因为矿山灾害给国家人民带来的损失是惨重的，因此，对矿山重大危险源的监测显得尤为紧迫和重要，传统的矿山监测系统因为不能在地图上直观的查看矿区地质地貌，同时也不能通过点击某个危险源，来显示危险源所埋设的监测仪器的监测数据信息。所以将瓦片地图技术应用于矿山危险源监测系统，使传统的监测系统增加了地图感观的体验。本文主要介绍了WebGIS基本原理，Ajax技术，瓦片地图技术，对重大危险源管理系统的整体架构进行了总体设计，同时也对部分模块进行了详细设计和具体研究。主要工作为：首先介绍WebGIS的概念及其基本原理，然后介绍瓦片地图服务以及其与传统WebGIS服务的区别，同时介绍了地图缓存服务、Ajax技术的优缺点以及WebGIS系统使用它的必要性，然后详细讲解瓦片地图模型的关键技术，接着对危险源管理系统的总体结构进行设计，其中包括背景、设计目标及原则、功能介绍，，然后对各个子模块进行了详细设计，对部分功能的实现代码做出了详细分析和说明，最后在客户端实现了系统的功能，包括在地图上添加危险源坐标、显示危险源监测数据信息、危险源巡检管理、危险源日常监测信息，展示了其实现效果。
[Abstract]:With the continuous development of computer technology and geographic information technology, especially with the rapid development of computer network technology, The connection between computer and geographic information is becoming closer and closer. The emergence of WebGIS is the result of the fusion of the two. With the traditional technology based on CGI Server API Java Applet and so on, its disadvantages are more and more obvious. That is, the speed of data transmission on the network can not meet the needs of people to browse map services quickly. The reason is that the traditional WebGIS works by creating pictures in real time. With the advent of Google Earth, The pyramid model of tile map is gradually recognized and understood by people. It is to cut the map according to certain rules and store it in the database server. It can replace the dynamic map service with the picture. So the speed of the whole system has been obviously improved, and the experience effect of the user has been obviously enhanced. At the same time, with the appearance of Ajax technology, it has been applied to the browser client. It makes the user's experience of asynchronous data transmission more obvious, so the WebGIS system based on tile map emerges as the times require. China is a country with frequent geological disasters, especially a large number of mines, which cause heavy losses to the people of our country every year because of mine disasters. Therefore, the monitoring of major hazards in mines is particularly urgent and important. Because the traditional mine monitoring system can not directly view the geological and geomorphology of the mining area on the map, at the same time, it can not click on a danger source. So the application of tile map technology to mine hazard monitoring system makes the traditional monitoring system increase the experience of map perception. This paper mainly introduces the basic principles of WebGIS, such as Ajax technology, tile map technology, and the overall design of the overall structure of the management system of major hazard sources. At the same time, some modules are designed and studied in detail. The main work is as follows: first, introduce the concept and basic principle of WebGIS, then introduce the tile map service and its difference from the traditional WebGIS service. At the same time, this paper introduces the advantages and disadvantages of map caching service Ajax technology and the necessity of using it in WebGIS system, then explains the key technology of tile map model in detail, and then designs the overall structure of hazard management system, including the background. Design objectives and principles, function introduction, and then the detailed design of each sub-module, part of the implementation of the code to make a detailed analysis and description, finally in the client to achieve the functions of the system, It includes adding the coordinates of dangerous sources to the map, displaying the information of monitoring data of dangerous sources, inspecting and managing dangerous sources, daily monitoring information of dangerous sources, and showing the effect of its realization.
【学位授予单位】：武汉工程大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD76

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