Investigation on Water Recording system for Large User of Water Supply Network Based on PLC

The water consumption of large users in the water supply system is necessary in the performance of the modeling analyze of water supply network or water quality changing studies. There is a lack of reliable, low-cost method that is able to modify the usual mechanical water to an intelligent one. This research mainly describes a simply designed transformation from gear rotation to a practicable on/off pulse signal which is collected and storied by PLC as the terminal. All date can be read from the PLC by a computer after a sampling period, such as 10 days or less. The running results show that the recording system is reliability, stability, which provides a powerful data support for the modeling of water supply network and water consumption forecast of large users in demonstration area. This paper demonstrated sufficient measurement transformation technology. The basic design can also be adapted for other target ranges. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of the Intelligent Information Technology Application Research Association.