Thus many isolated networks are formed in tv station , and this brings much inconvenience . web services is a new distributed computing technology , it combines the tight - coupling n - tier computing technology and the concept of loose - coupling web together , thus allows the clients access the distant web services via standard network transfer protocol ( http ) . the messages of request and response are all encoded in xml format Web服务( webservices )是近年来刚刚出现的一种分布式计算技术，它将紧密耦合的n层计算技术与松散耦合的web概念相结合，允许客户端通过标准网络传输协议http调用远程的web服务，调用请求和返回结果都用xml进行编码，从而实现了平台无关性。
This thesis introduces in details the design and functional realization of the models of video compression , decompression and video transport . after this , some key relating technologies , including com , directshow , windows socket , tcp / ip , video compress codes and transport technologies , have also been presented in the thesis to realize a complete digital video monitoring system 本文对系统中视频压缩、解压缩，视频数据传输等模块的设计方法及功能实现都进行了比较详细的介绍。本文还简要介绍了设计实现该系统所用到的各种相关的关键技术：包括com技术与directshow技术、视频图像压缩、传输技术以及相关的网络传输协议tcp ip 、 windowssocket技术。实现了一个完整的数字视频监控系统。
This system makes people fell convenient in looking for data , try my best to our environment protection . the following problems and related solutions are given in this paper : data structure suitable for web computing multi - user access and concurrent control mechanism in webgis network protocol and intelligent information agent of spatial information spatial information security in web computing environment web integration strategy of spatial information based on metadata architecture of webgis at last , the development trend of webgis is discussed 通过论文工作提出了以下几个问题并给出了相应的解决方案适合web计算的数据模型webgis中的多用户访问与并发控制机制空间信息的网络计算策略与实施方案及关键算法空间信息的网络传输协议与智能空间信息代理web计算环境下的空间信息安全性问题基于metadata的空间信息web集成方案与智能空间搜索引擎webgis体系结构最后，论文对webgis发展趋势进行了探讨。
In the second chapter , this paper explains in detail the principally technic about how to implement this system , include the video media compress tech , the network protocol and the network program socket ( the winsock programimg ) . in the third chapter , this paper summarizes the whole designing outline of the remote monitor system 本文对基于网络的多媒体远程监控系统的设计实现中所涉及的关键技术难点进行了深入的分析研究，具体包括：各种图像压缩技术；各种网络传输协议、网络编程技术。
