【作者】 周国欣；

【导师】 钱强；

【作者基本信息】 江南大学 ， 控制理论与控制工程， 2004， 硕士

【摘要】 随着社会及人民物质文化生活的发展，对粮食加工工业的技术提出了新的要求。由于光电色选机的独特而有效筛选方式，它在大米等粮食筛选加工工业的技术改造中得到了广泛的应用。本文主要提出色选机控制系统的设计方案并具体实现。本文首先对色选机的工作原理进行说明，然后通过分析色选机控制系统的功能要求将控制系统设计为一个主DSP处理器与多片从DSP处理器协同工作的一个系统。主处理器负责色选机系统的外围控制。从处理器系统负责对光检系统的CCD传感器信号的处理并依据处理的结果控制设备除去不合格颗粒。同时为了提高色选系统的色选性能，本文采用模糊控制技术来实现色选机系统的自动调整。通过仿真证明模糊控制技术的可行性。CCD传感器的驱动，其输出信号的处理及如何控制祛除不合格颗粒这三个方面为从DSP处理器系统实现的关键，本文在提出设计方案后，结合DSP处理器的特点讨论如何实现这些方案。更多还原

【Abstract】 With the development of the society and civilization，the innovation of technology is needed in food processing industry. Color sorters are widely used in the corn sorting industry because its particular but efficient sorting procession. In this article, the design of the sorter’s control system is not only presented but also implemented.After the sorter’s principle is explained, the sorter’s control system design is brought forward that a master DSP processor works with several slave ones. The master processor controls the sorter’s peripheral equipment. One slave processor is engaged in processing CCD sensor’s output signal in optical detecting system and driving equipment to get rid of the unqualified grain. At same time, Fuzzy control technology is applied to the system auto-adjustment in order to enhance the sorting ability. The Fuzzy control system is simulated to prove its feasibility. How to driving the CCD sensor, how to process the sensor’s output signals and how to drive equipments to get rid of unqualified grain are three focuses in a slave processor. In the last chapter, being based on the DSP particularity, all of the designs are implemented in hardware and software.更多还原