Hydrological monitoring requires real-time monitoring of hydrological parameters for various waters and groundwater,grasps the temporal and spatial distribution and variation law of natural water,and makes scientific decisions through advance prediction and analysis.This paper studies the application of automation technology in hydrological monitoring.On the basis of mastering the related concepts and connotations of hydrological monitoring and automation technology,it analyzes the effective application of automation technology from the aspects of automatic data acquisition,automatic control and wireless communication.It focuses on the technical application points of rainfall sensor,water level sensor,microcontroller,programmable logic controller,remote terminal unit,GPRS communication and 4G communication,so as to improve the safety,stability and reliability of automatic hydrological monitoring system.
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