A Water Bath Control System in a Virtual Laboratory Environment

In this paper, the development of a water bath control system in a virtual laboratory environment is discussed. The system proposed is developed using LABVIEW 8.6. This project consists of three stages. The first stage is hardware development, which involves construction of interface circuit to allow communication between plant and computer. The second stage is to build the Fuzzy Logic Controller using LABVIEW software, where fuzzy set and rule base are applied. The final stage is to publish the GUI module onto the web for real-time remote control. An internet based GUI module environment of a water bath temperature control system has successfully been developed using LABVIEW software and published onto the web where it can be fully controlled using Fuzzy Logic Controller developed, and monitored by any user despite of their geographical locations, as long as they have computers with web browsers and internet connection. Thus, this will assure a better and easier understanding of certain subjects, especially control system. With such a facility, laboratory resources can be shared online, laboratory experiments can be carried out away from the site as well as outside the official working hour, and the control subject can be taught in a more meaningful and effective manner to the students

Vision System for Autonomous Underwater Vehicle Using Wireless Camera for Monitoring and Surveillances Application

This paper present the new design of vision system for autonomous underwater vehicle with the implementation of wireless camera, whereby, produce clearer image. The major obstacle faced by underwater vision system is the extreme loss of color and contrast when submerged to any significant depth whereby the image quality produced is low. Therefore, as to obtain clearer images, several investigations will be done in order to know the appropriate distance required between the images with the camera. At the end of the project, the new design of the vision system will be well functioned and can be applied to capture clearly the underwater images and also might be used to explore the nature of underwater. This new vision system also could be used for monitoring, surveillances, and maintenance tasks for underwater where it is risky for the human to work in it

Design and Development of an Autonomous Underwater Vehicle (AUV-FKEUTeM)

Abstract—This paper describes a design and development of an Autonomous Underwater Vehicle (AUV). AUV are robotic submarines that are a part of the emerging field of autonomous and unmanned vehicles. This project shows the design implementation of an AUV as a test bed platform for a variety of research in underwater technologies especially involving small-scale, surface water and low-cost underwater robots. The general design and its consideration are well discussed in this paper. The AUV prototype has been developed by SolidWork. It will have a fixed mechanical system and body, having a modular electronic system that allows development of various controllers. The controller and motors has been tested in small scale surface water and the result is encouraging. Some of the factor affecting the AUV performance is also elaborated for future research in this area

Pico-hydro electrification from rainwater’s gravitational force for urban area

The demand for electrical energy is increasing in most areas in the world. Unstable fossil fuel price and its rapid depletion have led to an intensive research on new energy source and energy conversion. This paper presents the performance of the energy harvesting which focuses on the experimental work to emulate energy harvesting from the rainwater by utilizing a Pico - hydro approach installed to a high building. NACuM core DB-370F DC generators, 1000 litres water tank, 0.5 inch diameter piping system used in two different configurations with three different head setups. The result shows a huge energy harvesting potential obtained from the system and rainwater with maximum 261 milliwatts despite the hardware’s limitation in the setup. Hance, contributes to the cost-efficient due to its small in size, environmentally friendly, and hassle-free maintenanc

Quran as Inspiration for Implementation of Pico Hydro System

ABSTRACT Islam urges Muslims to protect and preserve the environment and not to ruin the nature. This is mentions in the Holy Quran through several verses in many chapters. Therefore, when we talk about renewable energy such as Pico hydro, the green energy or technology suits the teaching of Islam. Allah the All Knowing emphasizes in the Quran the importance of knowledge. Similarly, in many Hadiths the Prophet Muhammad insisted for the Muslims to seek knowledge. Through the Holy Quran, Allah mentions all sort of knowledge such as science and technologies, commerce and economy, health and medicine, laws, history and philosophy, and astronomy. This paper discusses about the basic theories related to Pico hydro power engineering that is proved and mentioned in the Holy Quran. From the observation, it is found that many encounters from research works in the field of hydropower have been approved and produced; but Quran still the best as a reference. Thus, the Quran is clearly preserved by Allah S.W.T. and will be always becomes the main source of knowledge and guidance, as well as the inspiration to all humankind in every aspect of their life, including knowledge such as science and technology: the utilization of the water power for Pico hydro system

Simple Realization of 5-Segment Discontinuous SVPWM Based on FPGA

The Space Vector Pulse Width Modulation (SVPWM) is possibly the best among all the PWM techniques for variable frequency drive applications. Unfortunately, the modulation algorithm is mainly implemented with software based on microcontroller or digital signal processors (DSP). These are software-based technique purely and obviously not an ideal solution. Employing Field Programmable Gate Array (FPGA) to realize SVPWM strategies provides advantages that it is considered as an appropriate solution to boost system performance of an SVPWM algorithm. Moreover, although in the literatures the implementation for three-phase SVPWM based on FPGA is not lacking, however all these designs are based on the conventional SVPWM without considering hardware-resource saving and not simple. This paper present a simple realization of 5-segment discontinuous SVPWM with a difference approach based on FPGA, in which the judging of sectors and the calculation of the firing time to generate the SVPWM waveform is simple, and also the switching losses is low. The proposed discontinuous SVPWM has been designed and successfully implemented by using APEX20KE Altera FPGA considering hardware-resource saving and has successfully driven a three phase inverter system with induction machine 1.5 kW as load

Obstacle Avoidance System for Unmanned Underwater Vehicle using Fin System

An underwater glider is a type of an unmanned underwater vehicle (UUV). The movement of an underwater glider in the water is based on the buoyancy-propelled for float and fixed-winged for stabilizing the glider’s body. However, a fixed wing underwater glider has limitation to avoid hitting the obstacle in front of it. To overcome this problem, the application of fin system in underwater glider is needed. In this project, a methodology was introduced which is design a flexible fin system of an underwater glider for obstacle avoidance purpose. This project mainly focused on SolidWorks’s simulation and analysis of -30°, -45°, -60° for submerge and rise up at 30°, 45°, 60° to get the most suitable angle for the glider’s fin system to submerge and rise up. The UTeM underwater glider is modified from fixed to flexible wing. Hence, Peripheral Interface Controller (PIC) is used to program the movement of the glider’s wings for upward at 45°and downward at -45°in the water. Thus,a flexible fin system for obstacle avoidance is designed and applied in UTeM underwater glider

Development and Modeling of Water Tank System using System Identification Method

This paper presents the development and modeling of Water Tank System (WTS) for temperature control using system identification technique. The WTS consists of the tank with 30 liter water, a stirrer, heater and thermocouple was powered by 240VDC and the system run by LabView software. The stirrer used to stabilize the water temperature that installed on the top cover of the WTS. In this project, a prototype of the WTS will be developed first. The WTS will be tested on an open loop system to obtain measured input-output signals. Input and output signals from the system are recorded and analyzed to infer a model. Then, system identification toolbox in MATLAB will be applied to generate a model of the WTS. The experimental testing of WTS only considered in temperature control. The modeling obtained will be used to design the a suitable controller for temperature control. The most crucial issue is the control system. It is needed for the WTS to perform the desired temperature setting. The objective of this project is to reduce or eliminate the overshoot of system response from temperature setting. The conventional controller PID and Fuzzy Logic Controller (FLC) will be used to control the temperature so that the temperature will maintain its desired temperature. The result shows that FLC is the better performance of system response in term of overshoot and oscillation