摘要
为了实现污水处理BOD在线检测,建立了以劳伦斯麦卡蒂公式为基础的软测量机理模型,采用限定记忆最小二乘算法对机理模型进行误差补偿,以提高模型的计算精度。设计了基于ATMEGA1280单片机的系统主控制器,采用模块化软件设计理念,利用AVR Studio开发环境,编程实现数据采集、软测量、液晶显示、数据存储、打印驱动等功能。此仪表已在工业现场得到应用。
For the online monitor of BOD,the soft sensing mechanism model is established based on the Lawrence McCarty formula,the error expiation,computed using least square method with restricted memory,is added to the mechanism model for improving the computing precision.The main controller about ATMEGA1280 singlechip is designed,the software is programmed by using the blocking software designing method and the integrated development environment of AVR Studio.The online monitor of BOD has many functions such as data acquisition,soft sensing computing,LCD display,data storing,printing,et al,and is being applied to the industrial working field.
出处
《控制工程》
CSCD
北大核心
2010年第S1期90-92,136,共4页
Control Engineering of China
基金
北京市自然科学基金资助项目(4062011)
北京市高校拔尖创新人才计划基金资助项目(200589)
北京市优秀人才项目
北京市教育委员会科技发展基金资助项目(KM200310011040)
关键词
软测量
机理模型
限定记忆最小二乘
AVR单片机
BOD在线检测
soft sensing
mechanism model
least square method with restricted memory
AVR singlechip
online monitor of BOD
