协同虚拟地理实验系统设计与初步试验

Design and preliminary test of a collaborative virtual geographic experiment system

针对协同虚拟地理实验设计与实现中的问题,研究了网络技术和虚拟现实技术支持下的协同虚拟地理实验的理论原理与设计思路,提出了一种符合综合集成研讨厅体系以及空间认知和知识发现规律的协同虚拟地理实验框架和若干的实验关键技术。并以辽宁省浑河洪水演进模拟为案例搭建了协同虚拟地理实验环境,从实验可控度、实验尺度、协同性、成本和重用性角度对协同虚拟地理实验进行了评估,评估结果表明,协同虚拟地理实验能够弥补现场地理实验和物理模型实验的不足,为地理问题的决策提供有效的技术支持。

Aiming at the problems in design and realization of collaborative virtual geographic experiments, the paper researches the theory and design of the experiments under the support of network and virtual reality technologies, and presents a collaborative virtual geographic experiment framework conforming to the system of the Hall for Workshop of Metasynthetie Engineering and the laws of spatial recognition and knowledge discovery, and gives its corresponding several key techniques. Taking the flood simulation of the Hunhe River in Liaoning province as a case, the paper builds the environment for collaborative virtual geographic experiments, and evaluates the collaborative virtual geographic experiments from the perspectives of experimental controllability, experimental scale, synergy, cost and reusability. The evaluation draws a conclusion that virtual geographic experiments can make up the insnffieieney of field experiments and physical model experiments, and can provide the effective technical support for the decision-making of geographic problems.