多测量装置水质监测仪器集成控制系统开发

Design of an Integrated Control System for Water Quality Monitoring Instruments with Multi-Measuring Devices

介绍了一种具有多个测量装置的水质监测仪器集成控制系统的开发设计方案。该设计方案针对5套功能相似但相互独立的水质测量装置,以嵌入式系统为控制核心,灵活运用Modbus RTU通信协议及RS485总线,并自主开发通信协议,实现控制核心与触摸屏、PC机以及5套测量装置的通信连接;进而采用多任务的处理架构,对上述外围设备操作任务进行分时处理,最终成功将5套测量装置集成为一台水质监测仪器,并支持PC机和触摸屏双终端进行显示和控制。实际应用效果表明,该设计方案稳定、可靠。

This paper introduces the design of an integrated control system for water quality monitoring instruments with multi-measuring devices. In this design, the embedded system is used as the control core. The communication link among the control core, one touch screen, one PC and five devices is established through the application of Modbus RTU protocol, RS485 bus and self-developed communication protocol. Then the multi-tasking architecture is introduced to process the peripheral tasks mentioned above. Finally, five devices are integrated into one instrument, with PC and touch screen serving as two terminal devices to display and control.The practical application shows that the design is both stable and reliable.