基于STM32的磁导航AGV控制系统设计

针对现有自动导引车(Automated Guided Vehicle,简称AGV)控制系统扩展不方便、稳定性不高等问题,提出了一种基于ARM Cortex-M3内核的STM32单片机的AGV控制方案。采用模块化的设计理念,设计了双MCU架构,通过外围模块硬件设计,结合软件程序编写,实现了与上位机的无线通信、外围设备数据的采集与控制以及工业触摸屏显示状态信息等功能。运动控制采用增量式PI算法实现AGV直流无刷电机的控制;采用RS232通信完成AGV与工业触摸屏的通信,实现人机交互功能;基于CAN总线方式实现AGV主控板与路径识别控制板的通信;同时设计了基于C#的数据可视化界面,方便管理人员监测AGV。经现场实际测试,系统运行稳定可靠。

Data Conversion Among Different Databases Under an Integrated Network Environment

Method for data conversion of heterogeneous DBMS's in the integrated network environment is introduced. The technical approach used can perform data conversion of heterogeneous databases located on different nodes of the network, such as Oracle, Sybase, Informix, MS SQL Server, SQL Anywhere and Foxpro. The conversion system adopts the Client/Server architecture and provides visual integrated interface for users.