Automated conversion of engineering drawings to CAD form
Article Abstract:
Although there are many advantages to having engineering drawings in electronic CAD format, such as easier modification, and faster copy and retrieve, most drawings are still in hard copy format only. According to most cost-benefit analyses, drawings that will require several modifications are best converted to an electronic format. The GTX 5000 from GTX Corp is a CAD conversion system that offers scanning, vectorization, text recognition, symbol recognition, context processing and cleanup editing subsystems. The system's approaches to isolated character classification include feature-space recognition using multiple decision trees supplemented by the neural network technique. The Electric Power Research Institute's (EPRI) funding for research in neural networks for character and symbol recognition, text/symbol associativity, and touching and broken character processing is also discussed.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1992
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Scanning the issue: knowledge-based systems in electric power systems
Article Abstract:
Expert systems and knowledge-based systems help solve power system problems, particularly when applied to abnormal operating situations. Load demands are increasing in many power systems, with under-development in the existing generation and transmission facilities. Expert systems can emulate problem-solving by humans and apply qualitative, nontrivial and high-quality knowledge for a difficult problem. Software-based expert systems contain a knowledge base, database and inference engine. More advanced systems may include knowledge acquisition, language interface and algorithm interface. Expert systems automate human decision-making, apply new artificial intelligence (AI) techniques and use knowledge bases to store human knowledge.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1992
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Engineering -- Economic Analysis of Electric Power Systems
Article Abstract:
The basic economic principle is to provide electrical services to the society with maximum benefits. Rates should reflect the marginal cost of supply. Economic efficiency criteria should be satisfied. Economic analysis of electrical power systems is described. Advances and developments occurring in power systems are discussed. Optimal reliability levels are graphed.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1984
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