Robotics application in colour recognition using fiber optic cabled sensors interfaced with robot controller and Programmable Logic Controller (PLC) is discussed in this paper. The sensors send input signals to the robot controller and the specified program will be executed with respect to the triggered input. The aim of this research work is to recognize colour by pin point detection and sorting of object specimens with respect to their colour attributes, which includes hue, saturation and luminance level. The controller programs were designed to control the robot and the conveyor belt independently parallel to each other via relays, to be synchronized during operation. Finally, the calculative results were verified experimentally and the real time implementation was carried out. It can be observed how controllers are integrated and synchronized in a system to perform a desired operation without conflict using real time applications such as chemical, pharmaceutical, agricultural, food industries and even recycling.
[Show abstract][Hide abstract] ABSTRACT: The purpose of this study is to design a Programmable Logic Controller (PLC) to command 8-relays to control and automate ac loads via PC parallel port. In this project, the PLC is connected to the Personal Computer called hybrid PLC and this PC controls all the field ac loads via parallel printer port. Eight signals of different sequences are sent on parallel port via computer keyboard, which activate the microcontroller as inputs. Microcontroller responds according to these inputs and its user programming, which then commands 8-relays to control (on/off) different electronic appliances. Microcontroller memory makes easier to store its programming permanently. This hybrid PLC is applicable for controlling and monitoring industrial processes particularly of small to medium scale manufacturing processes and may be used for home automation as well. Parallel port is accessed by a program written in C++ language and microcontroller is programmed in assembly language. Ac load of any kind, whether resistive or inductive can be controlled with the help of this project.
Journal of Applied Sciences 12/2007; 7(19). DOI:10.3923/jas.2007.2904.2907
[Show abstract][Hide abstract] ABSTRACT: This paper describes the research conducted at Monash University (Australia) to design a new mechatronics fish sorting system. The system consisted of a vision system for fish size identification and control and a sorting mechanism. This paper focuses on the control and sorting mechanism. The conceptual design and implementation of the mechatronics sorting system is discussed. Also the new design of the fish sorting flap is explained. Also, an illustration of the integrated mechatronics design approach is presented. The paper also describes the overall structure of the sorting system and the control methodology. Lessons learned are summarised in the conclusions.
[Show abstract][Hide abstract] ABSTRACT: The painting applications for industrial robots have been increased extensively in the last decades. Robots are known for their accuracy and repeatability and this will help in getting smooth and homogeneous operations which humans cannot perform repeatedly. Normally, the painting robots have six degrees-of-freedom (DOF) to allow the painting of complex shapes and surfaces. The main objectives of this paper is to design a 3-DOF robot that could be used for painting applications. The proposed robot is composed of three DOF and can be applied for painting plane dividers accurately and in a homogeneous pattern. This reduces the cost and simplifies the kinematic and dynamic analysis and ensures the homogeneity of the painting at the same time. This robot can be used to paint multiple color effectively without interfering from any human. The end-effector consists of two main parts, a color sensor and a spray gun. The color sensor can detect the required color of the divider based on a small sticker pasted on the divider. As soon as the color is detected, the controller moves a specific rack to be aligned with the reservoir filled of this color. A pump will start operating and divider will be painted in vertical strips starting from bottom-up. When divider painting finishes, the rack returns to its original position waiting for the next divider.
2nd International Symposium on Innovative Technologies in Engineering ISITES 2014, Karabuk. Turkey; 06/2014
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