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    An automated system for electrical power symbol placement in electrical plan drawing
    (Taylor & Francis Ltd, 2022) Akgul, Bayram; Kutucu, Hakan
    An electrical plan drawing-sometimes called a wiring diagram or electrical drawing-consists of lines and symbols. Electrical plan drawings are prepared on 2D architectural floor plans using Computer-Aided Design and/or Drafting (CAD) programs. The placement/drawing of electrical power symbols-such as sockets, lights, and switches-is the first step of an electrical plan drawing. For this purpose, a smart system has been developed in this study to automatically draw/place electrical power symbols in appropriate locations. The system is based on the detection and classification/recognition of furnishing (decorative) symbols in the floor plans. We have created a furnishing symbol dataset drawing on dozens of architectural plan drawings that contain symbols of the most commonly used tools in floor plans, such as furniture, appliances, plumbing, doors, and windows. We used a Deep Convolutional Neural Network (D-CNN) with transfer learning-Inception-v3 model- to classify furnishing symbols. We tested the model on 20 real floor plans and achieved a very satisfactory accuracy of 97.05% in furnishing symbol classification. The symbol drawing step, which is the first step of drawing the electrical plan, was automated using the work developed, thus achieving the aim of saving time and labour. Experimental studies show the effectiveness of the proposed automated system.
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    Fast and simple computer aided internal electrical wiring project design & integration of calculations
    (Elsevier Science Bv, 2012) Orak, Ilhami Muharrem; Akgul, Bayram
    For drawing electrical wiring diagram of buildings, mostly two dimensional CAD programs are used. Drawing is done starting from the source (utility pole) to main power panel and then it is distributed towards to subpanels. Then, end points such as sockets, lighting armature, etc are defined. In this study several algorithms are developed in order to evaluate different part of drawing project. Tree structure of drawing is analyzed and all materials to be used are decided based on an algorithm. Apart from these, some of the supplies to be used in project but not shown in the drawings are also be chosen with certain criteria. These decision systems will result in efficiency of overall cost of the project. In wire drawing one of the most important point is the line drawing with reference to an object. Apart from light outlet all wires are referenced to walls. Furthermore, all supplies shown in drawings are allocated with reference to walls and with an angle to walls. In wiring diagram drawings, standard CAD programs have no ability for wire drawing with reference to walls. Besides that, suggestion and selection of the most appropriate supplies is not possible. These increase drawing time and result in very high cost calculation errors. These algorithms provide fast and correct implementation. By analyzing drawings in a tree structure on which users have minimal impact, and with automatic selection of supplies all type of calculation mistakes are minimized. (C) 2011 Published by Elsevier Ltd.