摘要
介绍了可编程序控制器(PLC)在蔬菜大棚节水控制系统中的应用。该系统能根据用户要求手动设定各灌区的灌溉顺序和灌溉时间,通过自动控制电机和电磁阀的启闭,实现节约水电;达到了灌溉供水系统的自动监控,节省了人力,提高了灌溉质量,产生了良好的经济效益。
The application of programmable logic controller （PLC） in vegetable greenhouse water-saving irrigation control system is introduced. In this system,the irrigation order and time for various irrigation areas can be set according to the user＇s demand. The electrical motor is put into or out of operation, and the electro-magnetic valves are opened or closed based on the comparison. The system can reduce the start-up current of electrical motor of water pump, alleviate the impact on power net and reduce energy consumption.
出处
《河北工程技术高等专科学校学报》
2009年第2期33-35,共3页
Journal of Hebei Engineering and Technical College Quarterly
关键词
PLC
节水灌溉
梯形图
PLC
water-saving irrigation
trapezoid diagram
