| 实时协同标绘系统中的即时锁共享机制研究 |
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| 引用本文： | 战治国,金海,袁平鹏.实时协同标绘系统中的即时锁共享机制研究[J].华中科技大学学报(自然科学版),2005,33(Z1):379-382. |
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| 作者姓名： | 战治国 金海 袁平鹏 |
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| 作者单位： | 华中科技大学,计算机科学与技术学院,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目(60273076,90412010) |
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| 摘 要： | 针对协同GIS应用中的并发与协同,提出了一种即时锁共享机制.其基本思想是在一定的协同感知基础上,允许产生一定的冲突,然后加以解决.对于共享锁用户并发操作导致的冲突意愿保护,采用了有向二叉树结构存储的并发版本方法.冲突的解析则利用角色和投票相结合的方法.此机制已经在CoGIS中实现,结果证明它可以在保证数据一致性的基础上提高系统的整体性能.
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| 关 键 词： | 基于网格的协同标绘系统 冲突版本 角色 意愿保护 |
| 文章编号： | 1671-4512(2005)S1-0379-04 |
| 修稿时间： | 2005年8月20日 |
Research on instant share locking mechanism in real-time collaborative plotting system |
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| Zhan Zhiguo,Jin Hai Yuan,Pingpeng.Research on instant share locking mechanism in real-time collaborative plotting system[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2005,33(Z1):379-382. |
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| Authors: | Zhan Zhiguo Jin Hai Yuan Pingpeng |
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| Institution: | Zhan Zhiguo Jin Hai Yuan Pingpeng Postgraduate,College of Computer Sci.& Tech.,Huazhong Univ.of Sci.& Tech.,Wuhan 430074,China. |
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| Abstract: | For concurrency and collaboration of collaborative GIS application,this paper presents an instant share locking mechanism.The main idea is on the basis of collaborative awareness,a few unavoidable conflicts can be resolved.The concurrent version method with the structure of directed binary tree is adopted in order to preserve the intention of an operation resulted from concurrent operations.Then conflict resolution adopts the combination of role priority and vote.This mechanism has been implemented in CoGIS,and the result has proved that it can provide better performance on the basis of data consistency. |
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