| With the globalization of food supply increasing, and the recent repeated outbreaks of food borne illness, there is growing concern about food safety issues.Facing the bachward in technology of our food safty and defective regulatory system,it is practically significant that how to take some measures to guarantee food safety in the supply chain in each food supply chain. So establishing and implementing food traceability system is imminent.The food traceability system will be established when food safety accidents occur then be directionally recalled.The system can strengthen government management department of food safety supervision , enhance the consumers' security ,improve the credit consciousness of production enterprise,help our country's food break foreign technical barriers .With the development of the barcode technology,two dimensional barcode with its irreplaceable superiority becomes an important part of information work . QR two dimensional barcode is used for food traceability work because of its high safety,informativity,traceability,resistance to loss and redundancy etc.Meanwhile, the collaborative office also is to use Internet or Intranet technology, with "workflow" for the engine, by database for containers, "information portal" for the new office window mode of enterprises and institutions in vogue, making internal personnel, convenient to share information, efficient work together .Combining with food tracing system requirements and the advantage of the two dimensional barcode technology and cooperative official ,it becomes an inevitably development trend that it establishes a set of complete and effective two dimensional barcode food traceability system . The establishment of the system can be beneficial to distinguish product, improve product quality, improve the production of the enterprise management and cost management and reducing supply chain cost, maintain food supply chain between product information .It has the great significance to reducing legal responsibility and improving customer service This design using the MsSQL2005 + VS2005 as development tools has been Windows platforms on integrated the strongest ability and the most complete function development tools. It also has the characteristics of yi-ology easy-to-use ,even more has whole object-oriented mechanism, and greatly reduces the software design and maintenance of the complex degree.This paper can be divided into the following several chapters :In chapter 1,it describes the topic in the practical work facing the research background, the project development aim and project significance , and the design of two dimensional barcode food traceability system characteristic and the main work of this paper.In chapter 2, it introduces the technologies adopted in the subjects, including asp.net technology, c #, SQL2005, IIS, QR code, CA, etc,and the technical characteristics of the project and the function in this paper.The paper also compares the technology adopted and other similar technology and expounds the reason appling the technology.In chapter 3, it shows the topic overall design and requirement analysis, mainly including the main function of the platform,the division of the platform module,the fuction realization of each module, database design, the relationship and structure of each database table ,the software and hardware configuration platform.In chapter 4,it expounds the detailed design and implementation of the topic, including the specific implementation details of database,and introduces the detailed design details of each module,and shows the design in source code form used in the key technology and so on.In chapter 5,it in a similar way do practical operation and debugging to the different levels of users with the use of the B/S, C/S, stand-alone program, and therefore in certain degree it proves its feasibility and actual result.In chaper 6,it summerizes the main work.The existing problems in this paper point out the future direction of the further work. |
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