| Since the 21st century, the science and technology of information at a surprising speed of development to improve agricultural productivity as the goal to accelerate the process of agricultural modernization in China. Not only through agricultural information technology can be widely available technology for agricultural producers, production, marketing consulting services to agricultural producers and agricultural leaders in charge to provide effective use of agricultural resources, optimizing agricultural production technology and scientific management decision-making procedures, and can use the existing single integrated assembly of agricultural technology, supporting high-level scientific and technological innovation, quickly and easily in large scale applications, a comprehensive agricultural and rural science and technology to improve the overall level. Therefore, actively carry out agricultural research and application of information technology to make high-tech agricultural services, for the full implementation of the "technology and education strategy" of great significance.In this paper, fruit-based 3G mobile expert system is information technology, network communication technology and system integration of the latest technology in agriculture typical application.Hybrid network based on 3G and GPS technology, expert system embodies the fruit movement strong mobility, convenience, guidance, and profound, practical, portable, easy maintenance and so on. The expert system in the management of knowledge, Guanximiyou honey pomelo cultivation, pest and disease diagnosis and control of comprehensive knowledge based on a browser / server/ database system based on three-tier architecture, object-oriented programming optimization modeling, development platform using Microsoft ASP.NET platform and Visual C #, WML, Javascript, XML and other programming languages, database using Microsoft SQL Server 2000 database management system, and using Visual Studio.NET 2003, Macromedia Dreamweaver CS4, Editplus2 and other programming tools preparation of the code, as well as to use Adobe Photoshop CS4, Adobe Firework CS4 for graphic design and processing, in the 3G mobile terminals mobile expertise to achieve the fruit consulting subsystem, pest and disease diagnosis expert subsystem, 3G and GPS information exchange subsystem, 3G Mobile video monitoring subsystem, 3G fertilizer formula subsystems and background data management subsystem, for agricultural production provides a full range of mobile fruit tree expert system (FMES). Specifically described as follows:(1) 3G mobile expertise consulting subsystem trees in order to achieve high yield of Guanximiyou, quality and pollution-free goal, a comprehensive summary of Guanximiyou in the cultivation and management of knowledge related to teaching materials, research experts and agricultural producers the basis of experience to the browser/ server / database system based on three-tier architecture, object-oriented programming optimization modeling, database technology through the establishment of a database of knowledge-based organization and storage methods, the introduction of multi-directory development and design , the expert knowledge of different categories, the clarity, while adding human dialog window, the user only through a 3G mobile terminal can be any time, anywhere easy access to the necessary expertise.(2) 3G fruit tree pest diagnosis expert subsystem Guanximiyou pest knowledge production through new methods of knowledge representation, knowledge of pest and disease diagnosis that created Guanximiyou Diseases Diagnosis and treatment knowledge base, fuzzy and search strategies and precise control strategy has produced a system of inference engine, agricultural producers in more 3G handsets to use the diagnosis, fuzzy diagnosis, or means of achieving accurate diagnosis of illustrated pest diagnosis and control, without any of the time and space constraints.(3) 3G mobile video surveillance subsystem orchard 3G mobile technology and the combination of traditional fixed-line video monitoring to achieve a mobile remote video systems. Wireless video surveillance system, management, farmers, technicians can be anytime, anywhere via 3G mobile terminals to keep up the orchard conditions, pairs of incidents and respond quickly to site conditions, but also through the video surveillance system, farmers can Real-time agricultural experts visit the field to accept guidance and supervision. If agricultural producers are far away from home, he can achieve "any time, any place, any device" seamless wireless video monitoring thousands of miles away.(4) 3G GPS fruit accurate geographic information exchange platform for interactive subsystems to achieve the adoption of 3G mobile terminals or professional GPS equipment for fruit tree diseases and insect pests and disease of the image GPS geographic information, using the technique of pest WAP2.0 picture, the system get through the EXIF information technology, agricultural producers through the system will be the incidence of diseases of Guanximiyou image information and geographic information accurate and timely interactive communication with experts.(5) 3G fruit tree fertilizer recipe subsystem to Guanximiyou orchards of light, temperature, water, soil database based on data in the 3G mobile handsets fertilizer formula to achieve query information to provide users with Guanximiyou orchards relevant ecological information.In the final section, summarizes the thesis research of 3G mobile fruit expert system design and implementation of innovation and vision, as well as further optimization of the system.
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