面向食品材料物性检测与评价的仿生咀嚼机器人研究

Due to the different test environments, test parameters, oral cavity structures, and chewing behaviors, the food properties inspection instruments, which are widely used today, usually provide different property readings than human being's actual tastes and feelings. Evaluations by test panels also have various disadvantages of being expensive, not efficient, and hard to be standardized. To solve the above problems, the current project will conduct research on the following areas: Simulation of oral food chewing and food sensation, to discover the relationship between chewing parameters and food mechanical properties; Analysis of procedure on the deformaton and breaking of food materials, to build the stress-strain model; Design of oral chewing robots based on the simulation of saliva secretion, oral temperature, chewing movement profile and speed, to realize the real-time inspection based on the optimized measuring program; Integration of theoretic analysis and physical experiment, to establish the psychological model-correlation between an intensity scale and physical measurement. With the humanoid measureing program, the designed robot combined with psychological model can replace the current food test instruments and food test experts, and finally finish the evaluation of food texture.

目前广泛应用于食品物性检测的质构仪器由于检测环境、检测参数与口腔环境、咀嚼运动参数不同，导致检测数据与口感不一致；而专家对食品感官评定也存在价格昂贵、效率低下、不易标准化的问题。本课题针对这一问题，对以下关键问题展开研究：探寻人类咀嚼感知食品物性的机理，获取人类咀嚼运动参数与食品材料主要物性的关系曲线；展开粘弹性食品材料咀嚼过程的变形、破裂行为分析，建立其应力应变模型；模拟口腔温、湿度环境，实现咀嚼机器人仿人的基于食品材料物性变化的反馈咀嚼，获取基于咀嚼机器人食品材料物性仿生检测程序；以咀嚼机器人的食品材料物性的仿生检测结合感官评定人员的感官测试，建立表征食品材料物性对口腔刺激强度数据与人们对物性感觉强度数据关系的心理学模型。项目研究的成果-仿生咀嚼机器人以类人的咀嚼作为食品材料物性检测程序，完成食品材料物性准确、快速的检测，结合心理学模型，代替食品感官评定人员完成食品质地品质的客观评价。

目前广泛应用于食品物性检测的质构仪器由于检测环境、检测参数与口腔环境、咀嚼运动参数不同，导致检测数据与口感不一致；而专家对食品感官评定也存在价格昂贵、效率低下、不易标准化的问题。本课题针对这一问题，对以下关键问题展开研究：探寻人类咀嚼感知食品物性的机理，获取人类咀嚼运动参数与食品材料主要物性的关系曲线；展开粘弹性食品材料咀嚼过程的变形、破裂行为分析，建立其应力应变模型；模拟口腔温、湿度环境，实现咀嚼机器人仿人的基于食品材料物性变化的反馈咀嚼，获取基于咀嚼机器人食品材料物性仿生检测程序；以咀嚼机器人的食品材料物性的仿生检测结合感官评定人员的感官测试，建立表征食品材料物性对口腔刺激强度数据与人们对物性感觉强度数据关系的心理学模型。项目研究的成果-仿生咀嚼机器人以类人的咀嚼作为食品材料物性检测程序，完成食品材料物性准确、快速的检测，结合心理学模型，代替食品感官评定人员完成食品质地品质的客观评价。