An Embedded Measurement and Control System for Hydrological Cable-Way

The collection and measurement of hydrologic data is significant to water conservancy project construction, flood control and drought relief. An embedded measurement and control system for hydrological cable-way was proposed to solve the current problems, such as easily damaged grating encoding sensors, unstable beg signal zero gravity devices, unorderly down-lead of integrated signal underwater and transmission error of loop signal, et al. ARM9 S3C2410A was adopted as the control core in the master control side of this system, which is responsible for the input display of the lead fish side and relevant information with the external LCD controller and keyboard. AT89C52 single chip was used as the control core in the lead fish side, for controlling the switching of feed valve and flow-rate sensor. A two-tone communication mode was employed between the master control station and the lead fish side for operating information transmitted and sample data received. It can improve the reliability and anti-interference of information transmission.