农田灌溉水质监测控制系统设计

Design of Control System for Water Quality Monitor in Irrigating Farmland

针对灌溉农业水质监测仪流路进样控制系统高稳定性与高精度的要求,基于单片机技术设计了流路进样模块驱动控制电路,引入蠕动泵的驱动电路和多位阀的控制电路,并进行电路控制精度测试实验。实验结果表明:基于单片机设计控制电路可提高水质监测仪流路进样电路的稳定性与流路进样的精确度,为灌溉水质监测仪可靠性的提高奠定关键技术基础。

This paper designed the driving control circuit of flow injection module based on single chip microcomputer technology, for agricultural irrigation water quality monitor flow sampling control system with high stability and high precision requirements, introducted the driving circuit of peristaltic pump and a number of valve control circuit, and performed a test for the circuit control accuracy. The experimental results showed that the design based on single chip microcomputer control circuit could improve the water quality monitor flow sampling circuit stability and the accuracy of the flow injection, laid the key technical basis for irrigation water quality monitor to improve the reliability.