Research On An Agricultural Scientific Research Apparatus Sharing Method Based On Grid Technology

Many research departments in agriculture domain purchase a lot of agricultural scientific research apparatus in the past long-term R & D activities, but the utilization and sharing rate of the apparatus is not high. As a result, other research departments repetitively purchase the apparatus for scientific research, which wastes a lot of human, material and financial resources and greatly slows the pace of agricultural scientific research. So it should be studied on how to impove the sharing of agricultural apparatus, how to ensure agricultural apparatus reliable and timely services, how to get long-range agricultural apparatus operations and so on.The agricultural scientific research apparatus sharing provides a certain range of apparatus sharing platform by using information technologies. The basic characteristics of platform are opening, sharing, interactive and cooperation and the techniques are related with digital,network, intelligent and multi-media. The grid can provide just such an environment, in which all apparatus resources can be opening, sharing, interactive and collaborative to solving the above problems. So the grid technology may be used for the sharing of agricultural research apparatus. This paper tries to find a method which can provide a serial of the techonolgies to make the agricultural research appatatus be shared through the grid technology.This paper firstly describes the background of research, and analyses and researches the state of art of the domestic and foreign apparatus sharing research. Secondly, it analyses the grid and its architecture, and makes a further study on Open Grid Services Architecture and grid services. It also researches the key techniques of the OGSA, such as Web Service and Globus Toolkit, and the toolkit of OGSA, GT4. Thirdly, it proposes a sharing architecture, Agricultural Scientific research Apparatus based on OGSA (ASAO), according to the characteristics of apparatus sharing and related techniques with the advantages of OGSA. The ASAO has four tiers including application tier, middle tier, service and resource tier. Based on the ASAO, the paper studies the sharing methods, including how to package the agricultural scientific research apparatus resources, how to register grid services, how to discovery grid service and how to call grid services. Lastly, it designes and realizes the system prototype of ASAO, using XSP5C computer microscope as an apparatus resource, and then studies on how to create, deploy, discover and call grid services. It proposes the system's overall view and designes the grid nodes and grid master node. It describes the implement of the system, including the allocation of system development environment, the development of grid node , the development and implement of grid master node. It details the process of the prototype system and uses an example to valid the system, which proves that the agricultural scientific research apparatus sharing architecture and the sharing methods are effective and feasible.