海产品定量称量的方法研究-控制理论与控制工程专业论文.docxVIP

摘 要 动态定量称量技术是一项很有前景的技术，本论文概述了动态称量技术在国 内外研究现状及其发展，说明了研究动态称量的必要性和迫切性，本文是把组合 称量和定量控制相结合，实现了动态定量称量的目的，从而提高了定量称量海产 品的精度和速度，弥补了当今我国海产品加工业运用的人工静态称量的不足。 论文具体分析了定量称量问题，分析了海产品动态称量与小料动态定量称量 的不同，说明了海产品称量的特点。在单体称量方面，本论文运用函数链神经网 络方法建模学习以补偿桥路的非线性误差；在定量称量方面，根据组合的思想运 用 PC 机进行组合运算 ，再将计算选出的结果通过通讯传递给 PLC，最终由 PLC 完成操作，达到定量称量的目的。对于不同的生产要求，可以通过参数设定来自 由调整，使用方便灵活、系统可靠、精度高。 关键词：函数链神经网络 非线性误差 校正 补偿 动态称量 组合计算 ABSTRACT Quantitative Dynamic Weighing technology is a promising technology. The present paper has outlined the dynamic weighing technology in the domestic and foreign research present situation and the development, explained the necessity and the urgency of the research dynamic weighing. This article was unifies the combination weighing and the quota control, has realized the dynamic quota weighing goal, thus increased the quota weighing marine products precision and the speed, made up our country marine products processing industry utilization artificial static weighing insufficiency. The paper has specifically analyzed the quota weighing question, has analyzed the difference of marine products dynamic weighing and small material, explained the marine products weighing characteristic. After the analysis and compares, decided to complete the quota weighing marine products by using the combination weighing method. In the monomer weighing aspect, this paper using the function chain neural network method to model building and study ， Compensation electric bridge misalignment error.In quota weighing aspect ,according to the thought of combines using PC machine carry on the combination operation, again will calculate the result which will select through the communication to transmit gives PLC, finally will complete the operation by PLC, will achieve the quota weighing the goal. Regarding the different production request, may establish the free adjustment through the parameter. The system is easy to operate nimble, reliable and the precision is high. Keywords: The function chain neu