Development of SCADA Dynamic Application Design

The COVID-19 pandemic has changed major habits in learning patterns. Before the pandemic, almost all learning activities took place face-to-face. Especially vocational education, where competence or expertise is an absolute achievement that must be achieved. Learning patterns where practical learning reaches 60% of students must obtain practical learning directly. During the pandemic, direct learning activities cannot be carried out in full. This will have an impact on student competence. Solution is needed to solve it. One of them is how students can practice virtually. This article does not discuss the extent of competence achieved by a student through online practice. The focus of this article is to discuss how practical devices can be controlled remotely by designing a virtual system on the platform and running it in real time or known as dynamic application. And technicians or PLP will still supervise the operation of equipment in the laboratory. The device will be built using the MODBUS communication protocol

Designing and Implementing Instruction on the World Wide Web: A Case Study

This case study describes some tips and lessons learned from a project at St. Cloud State University designed to teach information literacy over the World Wide Web. The information literacy project has two primary components: Under the auspices of LEO: Literacy Education Online (a project to disseminate resources to improve composition and writing skills), to develop content resources providing guidance in library and internet use and application in research; Under the Center for Information Media, to disseminate self-paced instructional modules on library and internet use and application in research that could be used in credit-generating courses. As the two components exhibited considerable overlap, it was decided to develop inter-related resources within a single project environment

Army-NASA aircrew/aircraft integration program (A3I) software detailed design document, phase 3

The capabilities and design approach of the MIDAS (Man-machine Integration Design and Analysis System) computer-aided engineering (CAE) workstation under development by the Army-NASA Aircrew/Aircraft Integration Program is detailed. This workstation uses graphic, symbolic, and numeric prototyping tools and human performance models as part of an integrated design/analysis environment for crewstation human engineering. Developed incrementally, the requirements and design for Phase 3 (Dec. 1987 to Jun. 1989) are described. Software tools/models developed or significantly modified during this phase included: an interactive 3-D graphic cockpit design editor; multiple-perspective graphic views to observe simulation scenarios; symbolic methods to model the mission decomposition, equipment functions, pilot tasking and loading, as well as control the simulation; a 3-D dynamic anthropometric model; an intermachine communications package; and a training assessment component. These components were successfully used during Phase 3 to demonstrate the complex interactions and human engineering findings involved with a proposed cockpit communications design change in a simulated AH-64A Apache helicopter/mission that maps to empirical data from a similar study and AH-1 Cobra flight test

Design of a FFT/IFFT module as an IP core suitable for embedded systems

In this work, we have laid the foundations that allow us to accomplish the implementation of a FFT/IFFT module as an IP core. The main objective is to design a configurable optimized core that can be integrated as a standard peripheral of a microprocessor system. Thus, three different methodologies have been compared: VHDL coding, System-level tools at RT level, and System-level tools at macroblock level; in order to propose a general methodology that facilitates the design process as well as allows designers to maintain total control over the module internal architecture.MEC META TEC-2004-00840/MICJunta de Andalucía EXC-2005-TIC-102

Selection of wires and circuit protective devices for STS Orbiter vehicle payload electrical circuits

Electrical designers of Orbiter payloads face the challenge of determining proper circuit protection/wire size parameters to satisfy Orbiter engineering and safety requirements. This document is the result of a program undertaken to review test data from all available aerospace sources and perform additional testing to eliminate extrapolation errors. The resulting compilation of data was used to develop guidelines for the selection of wire sizes and circuit protection ratings. The purpose is to provide guidance to the engineering to ensure a design which meets Orbiter standards and which should be applicable to any aerospace design

RISC-based architectures for multiple robot systems

Several approaches to multiple robot system control are discussed. In order to simplify the study a multilayered model is proposed: a control layer which directly acts on the dynamics of the manipulators, a coordination/communication layer which makes all the manipulators work together and a programming layer which interfaces with the user. For the first layer two architectural alternatives are studied: a centralized single processor system and a distributed multiprocessor with static task assignment. For the second case an implementation based on the 1960 family of RISC processors is introduced. For the second layer three possibilities are considered: serial interface, parallel bus and local area network. The latter is carefully studied and a low cost alternative to the standard deterministic network MAP is introduced. This cell network is based on the CSMA/DCR protocol implemented on the i82596 coprocessor. Two alternatives are discussed for the programming layer: a parallel programming language based on a scene approach and a C extended language used to program elementary tasks in a robot independent way coupled with an intelligent scheduler used to assign these tasks to the robot arms at run time

PERFORMANCE EVALUATION OF WiFi WITH AND WITHOUT QoS

Wireless local area networks (WLANs) have been around for a long time but only recently have they become popular. Despite the fact that Wireless LANs have achieved a tremendous amount of growth in recent years, the performance is very poor. Hence, multimedia wireless network QoS support has become one of the most important researches. In order to improve the poor performance of existing system, QoS features and MAC enhancements are needed in the upcoming 802.1 le standard. This project aims to evaluate the performance of Wi-Fi systems with and without QoS, and quantify how well the new enhancement can support applications that require certain QoS guarantees. A thorough research on the IEEE802.11 standards is necessary to the success ofthis project, as well as an immaculate and extensive study on the QoS performance ofthe network. All the studies and evaluation is being done with a simulation using OMNeT++. The project requires knowledge of the WiFi architecture, C++ programming language, setting up simulation of a network in OMNeT++, andthen evaluating theQoS performance

An Investigation of alternative communication methods to face to face interaction between design and client

As technology becomes increasingly more sophisticated, means and demand for digital communication are increasing. The geographical expansion of the business world has made communication alternatives critical to working together more effectively. Face to face meetings may not be possible or the most cost and time efficient approach. Also, there is a move towards working at home, telecommuting, by using electronic communication for interaction (Fitzgerald 1993). Thus, electronic correspondence is becoming essential and we are witnessing a move towards higher performance and potential for communication alternatives. Knowing the options and their appropriateness is a competitive advantage. In a information society dominated by computers and communications, value is increased by knowledge, as well as by the speed of movement of that knowledge. (Fitzgerald 1994). Graphic designers rely on strong communication with their clients. Clients\u27 needs must be expressed to the designer and designer\u27s solutions must be communicated for approval. This process is repeated at several stages: initial, revision, and final. Traditionally, when face to face meetings were not feasible, comprehensives were mailed to the client. With the current move towards electronic communication, mail manual transportation are slower and possibly more expensive than electronic correspondence. With technology today, electronic correspondence may also include interactivity, voice, and video. The purpose of this thesis is to investigate alternative methods to face to face interaction between designer and client throughout the design approval process. The goal being to determine the appropriateness of each transmission application for information interchange of different kind of images and at different stages of the approval process. Appropriateness was to be determined by equipment, economic and time factors, interoperability, security, and aesthetic and communication quality. Facsimile technology, Adobe Acrobat\u27s portable document formal files, the Internet, and videoconferencing were the vehicles analyzed as an electronic correspondence alternatives to face to face interaction. The vehicles were tested in two parts, through survey and actual transactions with graphic designers. Participants were provided questionnaires to evaluate and compare the visual and non visual aspects of each vehicle. This thesis did not test specific software or hardware, but rather the validity of the technique for interaction and transmission of data between designer and client throughout the design approval process. The test was in two parts. The first part was a survey sampling of 1 00 design sites, design firms and advertising agencies, to derive quantitative information on each transmission vehicle Based on the assessment of the appropriateness of each vehicle, determined by survey response in conjunction with background research, Facsimile technology, Adobe Acrobat, and videoconferencing were deemed appropriate for further testing. The Internet was deemed inappropriate. Three design sites were involved in comparing facsimile technology and PDF files to dye sublimation hardcopy prints. A video-conference was donated, conducted, and videotaped. Participants were asked to evaluate and compare visual and non-visual aspects of the transmitted comprehensives. The conclusion of this thesis project is that the technology is here to use for electronic alternatives to face to face interaction between clients. Some adjustments have to be made, though, before these technologies can be embraced completely. Electronic alternatives are not qualified for final approval because of lack of precision in color, lack of demonstrating production or finishing operations, and the quality of typography on monitors are extremely low causing the aesthetic quality to be extremely diminished. Second, the designers selected hardcopy as the best option for communicating the tested designs. This indicates the community is not ready to embrace electronic alternatives. This may be due to a lacking of advantage of the electronic option to deem them necessary and/or lack of comfortability with the electronic alternatives. Either reason, electronic alternatives to face to face interaction between client and designer is not, currenly, being fully accepted. As for the vehicles themselves, Adobe Acrobat was found to be a very appropriate product to use between designer and client to communicate design comprehensives for initial and revision stages. Facsimile transmissions are appropriate for initial comprehensives or for revisions of comprehensives already seen at higher quality by the client. The Internet is presently not appropriate for private one-to-one file transfer between client and designer. Its strengths do not outweigh its risks. Videoconferencing is electronic correspondence, not file transfer. It can be used in combination with mail carrier service and file transfer or alone. If the client has been sent appropriate final proofs and the conference is used for verbal and visual communication, it is appropriate for all stages. If the final proof has not been sent, it is very appropriate for initial and revision stages. In comparison to mail carriers, all electronic options transmission times were significantly faster. All transmissions were under a hour. Additionally, all alternatives except videoconferencing, were less expensive

Spacelab system analysis: A study of the Marshall Avionics System Testbed (MAST)

An analysis of the Marshall Avionics Systems Testbed (MAST) communications requirements is presented. The average offered load for typical nodes is estimated. Suitable local area networks are determined