Design And Research Of Intelligent Traceability System For Fruit And Vegetable Based On Mobile Phone

In recent years,due to the continuous outbreak of food-borne diseases,people pay more and more attention to food safety.Aimed to strengthen the food safety quality management,the government is also vigorously promoting the construction of food traceability system.According to the analysis of food traceability system running status in last few years,the situation is not good,and there are some problems: firstly,the law and the standard are not comprehensive;secondly,the trace object are simplistic in the system;thirdly,the information technology for food traceability is not mature and the low participation of enterprises.Based on the literature of domestic and international research on food traceability,this paper mainly studies the problems of simplification and the information fracture in traceability system:(1)Put forward a design method of the generic traceability model,which describe the modeling of the two aspects of internal and external trace.The internal tracing module is abstracted as the four layer information structure,which is composed of the segment,process,safety factor and safety norm and described by nested set model,is used to describe the information of food safety in the internal tracing segment;And the external tracing module is achieved via the transaction batch map correlation model to describe the relationship between the tracing network,tracing link and tracing segment,aimed to compatible with the information integrity and association.Specially,the internal tracing model effectively solves the problem of the tracing object simplification,and makes the traceability system extensive.(2)For solving the information island problem,an intelligent tracing algorithm has been put forward based on the correlation feature between the tracing segments,which is used to search the circulation route.That method focus on the calculation of correlation characteristics,and defines the correlation feature evaluation formula which is used to analysis the inference result.(3)An mobile phone traceability system has been realized based on general tracing model,which has proved the theoretical and technical feasibility of the general tracing model.Through the simulation test of intelligent tracing algorithm,it`s discussed that the efficiency and the applicability of different scenarios of algorithm.