| After agricultural industrial structure adjustment and our country enter the WTO , agriculture has produced very great demand for information service. The third Asia agricultural information technology conference of Beijing of October of 2002( AFTTA2002) is had, the experts emphasize the status of the agricultural information in the 21st century, And point out that agriculture does not realize the informationization all-sidedly, its modernization is unimaginable, The sign of the poverty is that the information is poor at first. The characteristic of agriculture is space-time the difference and variability are great, it is bad to produce the stability and controllable degree. Especially our province is located in the high and cold outlying district , the agricultural traffic and information are stopped up , This has determined complexity of agricultural information service of our province and realize the degree of difficulty of the agricultural information. Users generally reflect that lacks the swift, effective practical information in the media , Making policy through the information has much degree of difficulty. Information holder and information user have enormous information wide gaps ( InformationGap), a large amount of confused information becomes" information rubbish" at the same time, Influencing the use of the information. Whether unless Heilongjiang Province the vast in the lands, for our country main grain production base,rice on cereal crops it is the with a very important position. The expert points out , after China joins WTO, in Heilungkiang 4 big cereal crops maize, wheat, soybean and rice, The rice is the most competitive. But the information of Heilongjiang Prdvince is undeveloped, agriculture's intelligent 1 evel i s n ot h igh, s o has not a 11 b een b rought i nto play yet i n t he advantages o f making the rice of market economy. Spirit of the promotion intelligent agricultural information technology made according to the policy of 16 great development IT application to agriculture that make of the party and Heilongjiang Province, Utilize the computer richly endowed by nature of agricultural university of the Northeast and agriculture's domain knowledge, Lack the characteristic of the agricultural expert according to the main rice production base of Heilongjiang Province, Develop rice DSS of Heilongjiang Province. With advanced software engineering, multimedia technology and system integration technology, Many persons of agricultural experience, technology, method and agricultural crop general sex knowledge as much as a large amount of that expert accumulate for many years, Synthesize basic fact data, such as region of Heilongjiang Province,etc., through analysing, refine, put in order, combine and form the knowledge base, Utilize the reasoning machine, the model storehouse, method storehouse, integrate for science, practibility, policy-making agricultural DSS finally. Put forward science, rational technological consultation and supporting to the production management of the crops. Rice DSS design and follow life cycle law of soft project, Design and develop stage by stage, put forward the plan of design of the whole systematic outline with the analytical method of structure ization. In systematic design and in realizing, analysecurrent rice procedure of cultivation technique at first of making policy, The dataflow of drawing DSS is pursued , then adopted the analytic approach of the dataflow, Put forward the function structure form of the subsystem, Utilize VB, SQL finally, ACCESS data base, multimedia technology,etc. facing target programming tool realize rice function of DSS. Agricultural DSS is the realizing concretly of agricultural expert system, and the expert system is the core of the intelligent informationization, Drive agricultural modernization only with informative development, could make the agriculture of our province develop further , Thus establish in an unassailable position in competing international and domestically in the future. This system combines the technolo... |
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