已有追溯模型以单元不可分割和质量均一为前提，而连续闭环农产品加工具有批次边界模糊、质量安全信息交叉的特征，因此开发具有智能柔性特征的模型已成为加工过程追溯的瓶颈。本项目以小麦粉加工为研究对象，分析加工节点静态结构和物料动态变化，对连续闭环加工过程进行建模仿真；结合时间特征下各批次概率分布函数，研究不同追溯单元粒度下的批次融合系数，建立追溯单元动态谱系，明确批次融合下追溯单元变化特征；分析关键质量控制点，将质量特征引入误差传递网络，通过合并单控制点质量预测值，构建多控制点质量耦合模型，揭示不同环节之间质量安全传递机制；构建多重约束下的智能柔性追溯模型，采用改进的粒子群算法优化模型，并基于召回效率进行模型验证评价。利用本模型改进开发的小麦粉加工智能追溯系统将为建立“从麦田到餐桌”的全程追溯体系奠定基础；同时，模型可为乳品生产、果品分级包装等类似加工中追溯模型的构建提供重要参考。

Traceability system is an important measure to ensure the quality and safety of products. The existed traceability model was established in the condition of undivided traceability resource unit and uniform quality feature. Due to the features of fuzzy batches boundaries and crossed quality safety information during the continuous and closed-loop agricultural products processing, the traceability model in this process with intelligent and flexibility characters is bottleneck to establish a comprehensive full traceability system. This project takes the wheat flour processing as the research object, analyzes the processing static structure and the dynamic change of the material, and makes the modeling and simulation of the continuous and closed-loop process. According to the probability distribution function of each batch, the batch fusion coefficients of different trace elements were studied, and the dynamic spectrum is established to define the change characteristics of trace elements in batch fusion; Quality features are introduced into the error propagation network by analyzing the key quality control points, , the multiple control quality coupling model is constructed through the merger of single control point quality predictive value to reveal links between different quality and safety transmission mechanism; The intelligent flexible traceability model with multiple constraints is constructed, and the improved particle swarm optimization model is used to validate the model. Improved wheat flour processing intelligent traceability system based on the developed model will lay a foundation for a "from field to table" full traceability system. In addition, this model will provide an important reference for the construction other similar continuous production and processing, such as dairy production and fruit grading and packaging.