Drawing System with Dobot Magician Manipulator Based on Image Processing

In this paper, the robot arm Dobot Magician and the Raspberry Pi development platform were used to integrate image processing and robot-arm drawing. For this system, the Python language built into Raspberry Pi was used as the working platform, and the real-time image stream collected by the camera was used to determine the contour pixel coordinates of image objects. We then performed gray-scale processing, image binarization, and edge detection. This paper proposes an edge-point sequential arrangement method, which arranges the edge pixel coordinates of each object in an orderly manner and places them in a set. Orderly arrangement means that the pixels in the set are arranged counterclockwise to the closed curve of the object shape. This arrangement simplifies the complexity of subsequent image processing and calculation of the drawing path. The number of closed curves represents the number of strokes in the drawing of the manipulator. In order to reduce the complexity of the drawing of the manipulator, a fewer number of closed curves will be necessary. To achieve this goal, we not only propose the 8-NN (abbreviation for eight-nearest-neighbor) search, but also use to the 16-NN search and the 24-NN search methods. Drawing path points are then converted into drawing coordinates for the Dobot Magician through the Raspberry Pi platform. The structural design of the Dobot reduces the complexity of the experiment, and its attitude and positioning control can be accurately carried out through the built-in API function or the underlying communication protocol, which is more suitable for drawing applications than other fixed-point manipulators. Experimental results show that the 24-NN search method can effectively reduce the number of closed curves and the number of strokes drawn by the manipulator.

Development and Application of Coal Mine Geological Drawing System Based on GIS Technology

Resource exploitation and competition have always been one of the most important topics in the world. Because the possession and exploitation of resources is directly related to the supply of social environment, we need to use various technologies to detect the resources owned by various environments in the country to make a reasonable allocation. In our country, the most commonly used technology should be GIS technology. Similarly, with the development of the past and times, the reserves of coal have begun to decrease, and the utilization of new energy has not been fully popularized, so the purpose of this paper is based on GIS technology to study the manufacture of geological drawing systems in coal mines, and to develop and apply them. After exploring the discovered coal, mine topographic map and the structure of the coal mine and its possible location, we can carry out systematic development and application through GIS by consulting the relevant literature of the geological map of the former coal mine and the development of GIS technology. Finally, its effect is verified by conducting another field survey of the discovered places. The experimental results show that the coal mine geological drawing system based on GIS technology can be more beneficial to our discovery and survey, which is 20% higher than the previous detection efficiency and 40% higher than the drawing accuracy.

Novel drawing system approach to manufacture performant commercially pure aluminium fine wires

Due to its electro-mechanical properties, commercially pure aluminium wires have attracted the interest of automotive industry representing a functional and efficient economic solution to reduce vehicle’s weight leading to the diminishing of energy consumption and emissions in today’s society. However, to consolidate its use in this sector and in new market realities, it is necessary to increase the flexibility of the aluminium conductor wires, consenting their installation in very small spaces and with high curvatures, avoiding any failure and electrical conductivity decrease. Thus, the evolution of microstructure and service performance needs to be investigated and controlled to improve the service safety. The present research shows a new approach to continuously manufacture efficient long wires with smaller diameters and fine grains at room temperature. It is studied the strengthening effects (yield and tensile strength, plasticity, hardness), the electrical conductivity, and the microstructural changes of commercial 1370 pure aluminium (99.7% Al) when traditional wire drawing process is combined with equal channel angular drawing (ECAD) technique. The results of this proposed procedure of deformation “drawing-ECAD-drawing” show an evident benefit, compared to the classic technology of production of aluminium wire, obtaining fine grain structure product with superior mechanical strength and not influenced electrical conductivity. The proposed manufacturing approach leads to fine wires enhancing the material mechanical properties by microstructural evolution (i.e. grain size reduction) avoiding the traditional post manufacturing thermal treatments requiring a high amount of energy and time and careful steps.

A Drawing System for Pole Diagram and Rose Diagram of Rock Mass Structural Surface

The distribution of structural planes is complex and irregular. How to quickly and effectively obtain the occurrence and distribution characteristics of structural planes and improve the efficiency of data processing is a key technical issue in structural plane analysis. The paper combined fuzzy equivalent clustering algorithm, rose diagram drawing method, and C++ language, developed a drawing system for the pole diagram and rose diagram of rock mass structural planes, and verified the practicability of the system through an engineering case analysis. In the article, the fuzzy equivalent clustering of the occurrence of structural planes, the drawing of pole diagram, and the statistical analysis of structural planes were realized based on the fuzzy equivalent clustering algorithm. The rapid drawing of the striking rose diagram, trending rose diagram, and dip rose diagram module were realized based on the rose diagram drawing method. The system integrated the structure plane pole diagram and the occurrence rose diagram together and realized the rapid analysis and drawing of the structure plane.

An Automatic Drawing Spur Gears Based on AutoCAD Program

In this research, a computer-aided drawing system of spur gear was developed. An auto LISP programming language embedded within the AutoCAD design package was used to develop a new program to create a 3D model of a spur gear in two main stages. In the first stage, the developed program of spur gear allows automatic 2D spur gear drawing generation using the technique that depends on the half tooth thickness at the pitch diameter. In the second stage, inner profiles of a 2D spur gear views are used to create a 3D model of a spur gear. The developed program helpful for the user in drawing the spur gear modelling, due to less work and time to be spent when compared with the conventional approach, and it also improves a high degree of accuracy of spur gear modelling. The spur gear resulting from the prepared gear drawing system can also work with other popular CAD software.

Novel Drawing System Approach To Manufacture Performant Commercially Pure Aluminium Fine Wires

Due to its electro-mechanical properties, commercially pure aluminium wires have attracted the interest of automotive industry representing a functional and efficient economic solution to reduce vehicle’s weight leading to the diminishing of energy consumption and emissions in today’s society. However, to consolidate its use in this sector and in new market realities, it is necessary to increase the flexibility of the aluminium conductor wires, consenting their installation in very small spaces and with high curvatures, avoiding any failure and electrical conductivity decrease. Thus, the evolution of microstructure and service performance need to be investigated and controlled to improve the service safety. The present research shows a new approach to efficiently continuously manufacture long wires with smaller diameters and fine grains at room temperature. It is studied the strengthening effects (yield and tensile strength, plasticity, hardness), the electrical conductivity and the microstructural changes of commercial 1370 pure aluminium (99.7% Al) when traditional wire drawing process is combined with equal channel angular drawing (ECAD) technique. The results of this proposed procedure of deformation “drawing-ECAD-drawing” show an evident benefit, compared to the classic technology of production of aluminium wire, obtaining fine grain structure product with superior mechanical strength and not influenced electrical conductivity. The proposed manufacturing approach leads to fine wires enhancing the material mechanical properties by microstructural evolution (i.e. grain size reduction) avoiding the traditional post manufacturing thermal treatments requiring a high amount of energy and time and careful steps.

Exploring Co-creative Drawing Workflows

This article presents the outcomes from a mixed-methods study of drawing practitioners (e.g., professional illustrators, fine artists, and art students) that was conducted in Autumn 2018 as a preliminary investigation for the development of a physical human-AI co-creative drawing system. The aim of the study was to discover possible roles that technology could play in observing, modeling, and possibly assisting an artist with their drawing. The study had three components: a paper survey of artists' drawing practises, technology usage and attitudes, video recorded drawing exercises and a follow-up semi-structured interview which included a co-design discussion on how AI might contribute to their drawing workflow. Key themes identified from the interviews were (1) drawing with physical mediums is a traditional and primary way of creation; (2) artists' views on AI varied, where co-creative AI is preferable to didactic AI; and (3) artists have a critical and skeptical view on the automation of creative work with AI. Participants' input provided the basis for the design and technical specifications of a co-creative drawing prototype, for which details are presented in this article. In addition, lessons learned from conducting the user study are presented with a reflection on future studies with drawing practitioners.

The Studies of Architectural Design Method

The design processes and strategies applied to each architect in carrying out their design tasks are different. The stages in producing architectural work can be based on the theory of certain design methods, intuition or design experience from each architect. As an architect, it is mandatory to know the design process in accordance with existing methods. There are several variables in the design method according to Jones and Schmitt. And this study aims to find the variables most widely used by 8 architects in designing. Including the average of the variables it uses. The method used in this research is quantitative method with one way ANOVA (analysis of variant) as its statistical analysis, by examining the mean difference between the research objects. The literature study was used to obtain an analysis of the design process and the methods used by 4 well-known architects as their secondary empirical data source, while field observations in the form of direct interviews were carried out to obtain the reality of the design process for 4 local architects with various backgrounds and characteristics as well as different architectural works. The end result shows that the average level of architects in the use of research variables is not much different and the design process variables that are most often used by architects in carrying out architectural designs, are the clarity of the need for the design function, the use of the drawing system and the design results that are meaningful and logical.