Study On Knowledge Expression Based On Ontology In Grab Knowledge System

Facing the arrival of the knowledge-based economy ages, the business enterprise needs to build up the knowledge system of the business enterprise products urgently, to reply the international competition of the product development period, innovation, quantity, service, and environmental protection cost of the product etc. The product knowledge base requests characteristics of sharing, reorganizability and inheritance and unification etc. So it is necessary to build a knowledge organization method that has wide application, strong contingency ability and stability. On the other hand, according to the demand of the information share of engineering application software, the interoperation between the tools of engineering application software, the reusing of network information resources, the business enterprise needs urgently an unifiable exchange platform of information resources, which can make information work of enterprise keep contuable development. The various requirements fit a hot study field spreading gradually to computer science field and the industry field in recent years, that is the knowledge organization and management methods based on "ontology".In this dissertation, the Grab knowledge based on ontology is bring forward, and discussed in theory and application based on worldly study of ontology, so that it realize the grab knowledge system based on ontology.Grab is a kind of engineering machine, it is very important in the infrastructure construction. During the period of construction, Grab may do many type work such as excavating slot, uploading, flatting ground, fragment, covering up ect.The grab knowledge system focus on computer modeling, related design and manufacturing of mold, and the computer information technique knowledge etc. Knowledge is the center of grab knowledge system, study the development of grab to establish method and tool, carry out the computer system and can comprehend each other with the computer system of the concrete staff member and the computer systems, attain the intelligence of human machine interaction, and the computer system operates with each other is reuse with knowledge within the computer system.