基于SOPC的定量称重控制系统的设计与实现  

The Design and Implementation of a Weighting Control System Based on SOPC

作　　者：李兰英[1] 李丰旺[1] 

机构地区：[1]哈尔滨理工大学,黑龙江省哈尔滨150080

出　　处：《微计算机信息》2008年第2期137-139,共3页Control & Automation

摘　　要：针对全自动定量称重控制系统所要求的高精度、高可靠性、多功能等特性,给出了基于多NiosⅡ嵌入式软核处理器的全自动定量称重控制系统的可编程片上系统(SOPC)软硬件设计方法。采用称重传感器、模数转换器AD7730、去极值平均滤波算法和预测控制算法,实现了颗粒、粉末状等物料的高精度测量及自动包装控制。该系统具有开发周期短、成本低、可靠性高、易于扩充等特点,现场测试结果表明,系统测量称重误差小于0.2%。For the needs of high accuracy, high reliability and multifunction of a weighting control system, the software and hardware design methods of a SOPC based on multiple Nios Ⅱ Embedded softcore CPUs are given. Weighing senor, A/D converter AD7730, the mean filter algorithm which can remove extreme values and the predictive control algorithm are used to implement the high precision measurement and the automatic pack control of the pulverized material. The system has the advantages of low cost, high stability, ...

关 键 词：SOPC NiosⅡ软核处理器 FPGA AD7730 动态称重 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]