SCADA and related technologies for irrigation district modernization

Presented at SCADA and related technologies for irrigation district modernization: a USCID water management conference on October 26-29, 2005 in Vancouver, Washington.Includes bibliographical references.Overview of Supervisory Control and Data Acquisition (SCADA) -- Total Channel Control™ - The value of automation in irrigation distribution systems -- Design and implementation of an irrigation canal SCADA -- All American Canal Monitoring Project -- Taking closed piping flowmeters to the next level - new technologies support trends in data logging and SCADA systems -- Real-time model-based dam automation: a case study of the Piute Dam -- Effective implementation of algorithm theory into PLCs -- Optimal fuzzy control for canal control structures -- SCADA over Zigbee™ -- Synchronous radio modem technology for affordable irrigation SCADA systems -- A suggested criteria for the selection of RTUs and sensors -- Irrigation canals in Spain: the integral process of modernization -- Ten years of SCADA data quality control and utilization for system management and planning modernization -- Moderately priced SCADA implementation -- Increasing peak power generation using SCADA and automation: a case study of the Kaweah River Power Authority -- Eastern Irrigation District canal automation and Supervisory Control and Data Acquisition (SCADA) -- Case study on design and construction of a regulating reservoir pumping station -- Saving water with Total Channel Control® in the Macalister Irrigation District, Australia -- Leveraging SCADA to modernize operations in the Klamath Irrigation Project -- A 2005 update on the installation of a VFD/SCADA system at Sutter Mutual Water Company -- Truckee Carson Irrigation District Turnout Water Measurement Program -- The myth of a "Turnkey" SCADA system and other lessons learned -- Canal modernization in Central California Irrigation District - case study -- Remote monitoring and operation at the Colorado River Irrigation District -- Web-based GIS decision support system for irrigation districts -- Using RiverWare as a real time river systems management tool -- Submerged venturi flume -- Ochoco Irrigation District telemetry case study -- Uinta Basin Replacement Project: a SCADA case study in managing multiple interests and adapting to loss of storage -- Training SCADA operators with real-time simulation -- Demonstration of gate control with SCADA system in Lower Rio Grande Valley, in Texas -- Incorporating sharp-crested weirs into irrigation SCADA systems

Volume 1 – Symposium: Tuesday, March 8

Group A: Digital Hydraulics Group B: Intelligent Control Group C: Valves Group D | G | K: Fundamentals Group E | H | L: Mobile Hydraulics Group F | I: Pumps Group M: Hydraulic Components:Group A: Digital Hydraulics Group B: Intelligent Control Group C: Valves Group D | G | K: Fundamentals Group E | H | L: Mobile Hydraulics Group F | I: Pumps Group M: Hydraulic Component

AN INVESTIGATION INTO PRODUCT DESIGN AND PRODUCTION TECHNIQUES WITHIN A JUST-IN-TIME MANUFACTURING ENVIRONMENT

This thesis describes the implementation of a Just-in-Time (JIT) cell on a greenfield site. It concentrates on a before and after implementation situation. Various production parameters are analysed to compare flowline performance before and after the implementation of JIT. The study is primarily concerned with the philosophies behind the Japanese management style of JIT and the practical use of JIT in a relatively small production line. Each area of JIT and its associated components are studied and, where practical, executed into practice within the production line. The study includes an investigation of the present manufacturing system and recommends improvements to aid manufacturing output. Total Quality Control, Set-up Reduction, Group Technology, Kanban, Failure Mode and Effects Analysis and Value Analysis are tools used to assist the formation of the JIT cell. Results taken after implementation revealed that stock levels reduced by 25%. Shop floor area was reduced by 205 square metres and lead time reduced by 33%. Large arrears in orders were virtually eliminated six weeks after implementation. Warranty claims were greatly reduced. Quality Management greatly enhanced the product and cross-training of operatives was achieved.Tecalemit Systems Limite

Time Localization of Abrupt Changes in Cutting Process using Hilbert Huang Transform

Cutting process is extremely dynamical process influenced by different phenomena such as chip formation, dynamical responses and condition of machining system elements. Different phenomena in cutting zone have signatures in different frequency bands in signal acquired during process monitoring. The time localization of signal’s frequency content is very important. An emerging technique for simultaneous analysis of the signal in time and frequency domain that can be used for time localization of frequency is Hilbert Huang Transform (HHT). It is based on empirical mode decomposition (EMD) of the signal into intrinsic mode functions (IMFs) as simple oscillatory modes. IMFs obtained using EMD can be processed using Hilbert Transform and instantaneous frequency of the signal can be computed. This paper gives a methodology for time localization of cutting process stop during intermittent turning. Cutting process stop leads to abrupt changes in acquired signal correlated to certain frequency band. The frequency band related to abrupt changes is localized in time using HHT. The potentials and limitations of HHT application in machining process monitoring are shown

Technology 2003: The Fourth National Technology Transfer Conference and Exposition, volume 2

Proceedings from symposia of the Technology 2003 Conference and Exposition, Dec. 7-9, 1993, Anaheim, CA, are presented. Volume 2 features papers on artificial intelligence, CAD&E, computer hardware, computer software, information management, photonics, robotics, test and measurement, video and imaging, and virtual reality/simulation

Knowledge-based product support systems

This research helps bridge the gap between conventional product support, where the support system is considered as a stand-alone application, and the new paradigm of responsive one, where the support system frequently communicates with its environment and reacts to stimuli. This new paradigm would enable product support knowledge to be captured, stored, processed, and updated automatically, being delivered to the users when, where and in the form they need it. The research reported in this thesis first defines Product Support Systems (PRSSs) as electronic means that provide accurate and up-to-date information to the user in a coherent and personalised manner. Product support knowledge is then identified as the integration of product, task, user, and support documentation knowledge. Next, the thesis focuses on an ontology-based model of the structure, relations, and attributes of product support knowledge. In that model product support virtual documentation (PSVD) is presented as an aggregation of Information Objects (IOs) and Information Object Clusters (IOCs). The description of PSVD is followed by an analysis of the relation between IOs, IOCs, and domain knowledge. Then, the thesis builds on the ontology-based representation of product support knowledge and explores the synergy between product support, problem solving, and knowledge engineering. As a result, a structured problem solving approach is introduced that combines case-based adaptation and model-based generation techniques. Based on that approach a knowledge engineering framework for product support systems is developed. A conceptual model of context-aware product support systems that extends the framework is then introduced. The conceptual model includes an ontology-based representation of knowledge related to the users, their activities, the support environment, and the device being used. An approach to semi-automatically integrating design and documentation data is also proposed as part of context-aware product support systems development process.EThOS - Electronic Theses Online ServiceGBUnited Kingdo