Environment server. Digital field information archival technology

For the safety operation of nuclear power plants, it is important to store various information about plants for a long period and visualize those stored information as desired. The system called Environment Server is developed for realizing it. In this paper, the general concepts of Environment Server is explained and its partial implementation for archiving the image information gathered by inspection mobile robots into virtual world and visualizing them is described. An extension of Environment Server for supporting attention sharing is also briefly introduced. (author)