On-Site Microcomputer Control of a Combined Sewer Overflow Diversion Structure

by William James, (M.ASCE), McMaster Univ, Hamilton, Ont, Canada,
Mark Stirrup, McMaster Univ, Hamilton, Ont, Canada,

Document Type: Proceeding Paper

Part of: Water Forum '86: World Water Issues in Evolution


This paper describes the design of an inexpensive system for controlling combined sewer overflows using on-site equipment (raingauges, flow gauges, automatic gates, and microcomputers). The system is based on the Timex/Sinclair 1000 microcomputer. An interface was designed for the computer converting it into a real-time data acquisition system and controller. Software for the controller was written in BASIC, and includes data acquisition and storage routines, data processing, runoff forecasting, and control routines. In order to evaluate the system's effectiveness in reducing the impacts of combined sewer overflows on local receiving waters, the control software was also incorporated in the PCSWMM3 model.

Subject Headings: Computer software | Computing in civil engineering | Control systems | Structural control | Hydrologic models | Equipment and machinery | Automation | Flow control

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