Saturday, November 16, 2019
Automation of Plastic Grinding Plant using HMI and PLC
Automation of Plastic Grinding Plant using HMI and PLC CAREER EPISODE: 03 INTRODUCTION: 3.1) The career episode three presents an extensive description of the project Automation of plastic grinding plant using HMI and PLC. This project was part of my industry internship Project 2 in the final semester, as well as a requirement to complete my degree, Bachelor of Engineering (Electronics and Communication)from Gujarat Technological University, India. I started this project with a team of three engineers including myself and a project trainer. The project duration was five months which included project training, implementation and testing. We worked as Electronic engineer interns in Mega Switchgears, India for this project. BACKGROUND: 3.2) In most of the small-scale industries the fault detection is done through manual means i.e. a lot of time is spent in identifying the exact point of error/failure in a particular system. It is a very exhausting task for the operator to check each and every machine in order to locate the error. To make work easier for the workers, we made an arrangement that displays a message on the HMI (Human Machine Interface) display which indicates the location of the error. 3.3) In this project, our main objective was to develop an automation system for a plastic grinding plant using HMI and PLC (Programmable Logic Controller). With the help of this automation system, we were able to monitor and control the plant from a remote location. In other words, status of each module could be monitored without going to the location of the plant and also it sends a message or alert with the location of the error whenever there is a problem or failure in the plant. 3.4) My roles and responsibilities included: Programming of PLC using WPL software Simulation of Plastic Grinding plant on HMI using Screen Editor software Assisting in designing the hardware prototype of plastic grinding plant Maintaining neat and organized electrical connection between different components Discuss future tasks and assess every team members work in weekly meetings. Maintain technical documentation. 3.5) Project mechanism PERSONAL ENGINEERING ACTIVITY 3.6) For this project, we went through an extensive training program for five months and simultaneously we completed our project implementation as well as the testing. We were working as interns in the organization. This training gave us an insight to the technical culture of an electronic industry. During this internship, we came across many new electric components such as PLC and HMI and learnt new approaches to design an electronic circuit in an organized manner as per IEEE design standards. I was trained by the project trainer in programming the PLC and HMI using different softwares. As a team, we were trained in designing and implementing the prototype of an automated plastic grinding system. During our training, we were also given lessons on safety measures to avoid hazardous situations. For a safety environment, we were provided gloves, clothes and glasses to design electronic circuit and mechanical hand. 3.7) Hardware Implementation We started with the designing of the prototype, discussed regarding the work process of the system and selection of components. In this project, we used DVP12SA PLC which was selected under the guidance of our project trainer and depending upon the application of the project. It consists of 8 input ports and 4 output ports. PLC is programmable controller which comprises of a microprocessor, input and output module, memory and power supply. It behaves according to the status of the input and output ports which depends upon the stored program in the memory of the PLC. Therefore, we decided to use PLC for our project. For the controlling and status condition of each module of the plant, I have used 8 channel and 4 channel relay cards, toggle switches and indicator lamps. Relay card is a device on which relay is mounted and can be used for controlling purpose, toggle switches for controlling certain aspects of the machines and indicator lamps are used for indication purpose of plant cond ition. These lamps have very good visibility.RS232 cable is used as a programming cable and RS485 is used to interconnect the PLC and HMI. To provide efficient power, in this project we have incorporated SMPS (Switched Mode Power Supply) Hardware Implementation with the mimic of the plant 3.8) Furthermore to automate the plastic grinding plant, we have also used Delta (DOPB07S211) HMI. I decided to use HMI in our project because it allows you to design the perfect plant diagram using a software and shows on the display screen. This made it really easy for me for the simulation process as well as monitoring the point plant from a remote location. The key feature of HDMI is to detect the exact location of the fault in the plant whenever any abnormal condition occurs such as If any motor will trip due to any abnormal condition then motor and related device process will stop and hooter gets ON, that gives a warning to the operator with audible sound. Operator can also verify which motor is tripped by visual indication on mimic by indicator lamps. 3.9) Software Implementation For software implementation, I was trained by our project trainer for two months. I used WPL Editor for PLC programming. This software is capable of providing 3 languages i.e. Ladder (LAD), Instruction (IL) and Sequential Function Chart (SFC).Ãâà It was easy to use the software but it was as difficult to program the PLC because the programming was implemented depending upon the various conditions of the plant and in those situations what action should be taken. After every minor implementation, I used to verify the action of the PLC in order to complete the programming successfully. For this project, I used Ladder language to program the PLC. 3.10) The second software which I was trained for was Screen Editor. I used screen editor to design the mimic diagram of plastic grinding plant with touch buttons that were used to control each module of the plant. This software is comparatively much lucid than WPL Editor software. I also incorporated colour code system for various fault condition such as follows: REDFeedback/Input is not given in system GreenSystem is running smoothly with no fault conditions YellowInterlocking the problem in the system Screen EditorHMI Display SUMMARY: 3.11) In the end after the implementation and documentation, we presented our project with the automated prototype of plastic grinding plant and gave a presentation in front of our faculty. The overall journey of this project was very productive in terms of learning, acquiring knowledge and enhancing technical skills. I faced many tough situations while pursuing this project such as programming the PLC and constructing the prototype but working under the guidance of our project trainer and as a team, made the project look easily achievable. For future prospective, system can be controlled using a computer at remote location by connecting HMI with an ethernet cable, record of faults occurring in the system can be recorded in the excel sheet and the system can be also password protected.
Wednesday, November 13, 2019
The Impact of Emerging Technology on the Public Sector Essay -- Techno
The Impact of Emerging Technology on the Public Sector The impact of information technology has been tremendous within the public sector. Over the years, the growth and development of technology has caused the public sector to change. One of the most significant changes in technology has been the evolution of the information systems and how their development has reshaped the way the world uses technology. ââ¬Å"It has been just over fifty years since the worlds first programmable computer became operational. It cost millions of dollars to build and processed an unprecedented 5,000 instructions per second. By 1971, Intel was able to pack 25 times that power into a single, two hundred-dollar chip. Todayââ¬â¢s personal computers process 400,000 instructions per second and if current trends continue, desktop-computing power will be at 100,000 million instructions per second by the year 2012.â⬠[i] Although the benefits of technology were first realized in the private sector, the public sector has been able to reap some benefits. In addition they have also incurred some of the challenges it has brought. This research paper will discuss the types of technology that are used by the public sector, cost considerations, security and confidentiality issues, the National Public Review and Government Information Technology initiatives and the challenges of training a computer literate workforce. Public Sector Technology Applications Emerging technology is the application of rising or forthcoming sciences to industrial and commercial objectives. These rising and forthcoming sciences have also been applied to the public sector. Technology has impacted the services the public sector provides as well as the internal systems used to support t... ...al, M., (1998) Technology in Government Vol. 5. No. 10., Public Lines up for Service, New York: Columbia University Press Northrop, A., Kraemer, K., Dunkle, D., and King, J. (1990) Public Administration Review vol 5., Payoffs from Computerization: Lessons Over Time, New York: Columbia University Press Reisner, R and Jones-Shearin, C. (1996) Access America Online Magazine, Improve the Public's Access to Government Services-Less Burden more Service www.accessamerica.gov/docs/public2.html {on-line} Thibodeau, P., (1999) CNN.com, Government: US will need 1.3M new IT workers by 2006, www.cnn.com/ting/9907/02/itwirk,idg/index.html {on-line} (1994) The American Heritage Dictionary 3rd Edition, New York, Dell Publishing Thompson, M., (1999) CNN.com, US Miltary Recruits on the Web, www.cnn.com/TECH/computing/9904/27/military.idg/index.html {on-line}
Monday, November 11, 2019
Cultural Anthropology Comparison Essay Essay
Two authors published separate articles that discussed the effects of Technology on families and on society in general. These articles are Technology and Social Change: The Effects on Family and Community, written by Jan English-Lueck in 1998 and Communication technologies that will change our lives, written by Graham T. T. Monitor in 2003. However, while both authors discussed the same topic, which is how technology generally affects the lives of people, they differ in the areas that they focused on in their respective articles. Basically, English-Lueck, in his article, claimed that technology has not actually adversely affected the way family members communicate among each other, but has rather enhanced it. According to him, the most significant and most obvious impact of technology on a family is that a personââ¬â¢s working hours extend to his or her work home. In other words, a due to the massive enhancement of technology, a person brings his or her work home when he or she should be allocating that time for his or her family. Based on English-Lueckââ¬â¢s article, while this can initially be viewed as a negative impact, the fact is, technology has actually efficiently improved the way family members communicate among each other. For example, a family camping trip can easily be planned in a single afternoon through the use of a pager or an E-mail as compared to the conventional method of planning it over dinner. Moreover, according to the article, family members who spend most of their time at work can regularly check if their children by paging them or calling them using a cellphone. In addition, a person can respond to emergency duties at work through by using a fax machine. In other words, English-Lueck in his article claims that it is wrong to assume that products of technology has negatively affected the family life since it they have actually made communication between members more convenient and more constant. On the other hand, Graham T. T. Monitorââ¬â¢s article focused on how rapid technology has been increasing over the past years and how this has lead to breaking down barriers in communication. Basically, Monitor said that due to constant technological advancements, which he believes will soon match the speed and power of the human brain, the society and families, both young and old, can easily access all types of digital communication devices that can enable them to communicate among themselves anywhere and anytime. According to him, this is possibly the most important effect on the family because it bridges the distance between family members or kin that are far away from each other. In other words, Monitor claims that the technology is improving so rapidly that people would never have to worry about communication problems. In short, both authors claim that while technological advancements can initially appear overwhelming, it should not adversely affect the way families live their lives but rather improve it. According to them, as technology improves, families should adapt to these new changes and use them to their advantage. Furthermore, both English-Lueck and Montior agreed in principle that these technological enhancements make work, family management, and, most of all, communication more efficient and that these technological trends will continue in the future.
Friday, November 8, 2019
Parley and Parlay
Parley and Parlay Parley and Parlay Parley and Parlay By Maeve Maddox Suzanne Raymer has suggested a post on parley versus parlay. Both words may be used as either noun or verb. As a noun, parley can mean speech or conversation. Its most common use is to mean speech between opposing sides, a conference with an enemy to discuss terms. As a verb it means to discuss terms, or hold discussion with. Parlay is a betting term. As a noun, it means a cumulative series of bets. The winnings of subsequent bets are bet again. As the bettor continues to win, the gains continue to increase. As a verb, parlay means to use the winnings from a previous bet to make another bet. Parley [prlÃâ] is from French parler, to speak. Parlay [prlà ] comes from French parole which comes from Italian parole, words, promises. Parlay entered English in 1701 as a term in the card game faro. The gambling term took on the meaning to exploit to advantage in 1942. Uses of parlay: David Lusterman parlayed a $10000 investment into a company with $1.2 million in revenues Witness Bill Blount parlayed political skills into a mega-dollar business She parlayed a $350 investment into a multi-million dollar businessâ⬠¦ Uses of parley: Governors seek fresh parley with teachers German politicians plan June parley with Hamas minister For the moment they are parleying with the kings brother-in-law Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Vocabulary category, check our popular posts, or choose a related post below:50 Slang Terms for MoneyConnotations of 35 Words for Funny People20 Criminal Terms You Should Know
Wednesday, November 6, 2019
3 Ways To Increase the Pressure of a Gas
3 Ways To Increase the Pressure of a Gas One common science homework question is to list 3 ways to increase theà pressure of a gas container or a balloon. This is an excellent question because answering it helps you understand what pressure is and how gases behave. What Is Pressure? Pressure is the amount of force exerted over a unit of area. P F/A Pressure Force divided by Area As you can see from looking at the equation, two ways to increase pressure are to increase the amount of force or decrease the area over which it is exerted. How exactly do you do that? Thats where the Ideal Gas Law comes into play. Pressure and the Ideal Gas Law At low (ordinary) pressures, real gases behave like ideal gases, so you can use the Ideal Gas Law to determine how to increase the pressure of a system. The Ideal Gas Law states: PV nRT Where P is pressure, V is volume, n is the number of moles of a gas, R is Boltzmanns constant, and T is temperature If we solve for P: P (nRT)/V Three Ways to Increase the Pressure of a Gas Increase the amount of gas. This is represented by the n in the equation. Adding more molecules of a gas increases the number of collisions between the molecules and the walls of the container. This raises pressure.Increase the temperature of the gas. This is represented by T in the equation. Increasing temperature adds energy to the gas molecules, increasing their motion and, again, increasing collisions.Decrease the volume of the gas. This is the V in the equation. By their very nature, gases can be compressed, so if the same gas can be put into a smaller container, it will exert a higher pressure. The gas molecules will be forced closer to each other, increasing collisions (force) and pressure.
Monday, November 4, 2019
Reading and Studying Literature - Compare and Contrast Essay
Reading and Studying Literature - Compare and Contrast - Essay Example Wordsworthââ¬â¢s extract from the Prelude, and de Quinceyââ¬â¢s extract from Confessions of an English Opium Eater have one feature in common: they both demonstrate a truly romantic sensibility. Beyond this central similarity, however, there are some major differences such as genre, national/international perspective, and proposed levels of social and moral behaviour which the ââ¬Å"autobiographerâ⬠persona claims to embody. The Romantic movement was essentially a continental European phenomenon when it first emerged, through the works in French and German by writers such as Jean-Jacques Rousseau (1712-1778) and Johann Wolfgang von Goethe(1749-1832). In Britain it flourished in literature first, and then later spread to music and other arts. It is seen in connection with some important developments in European history such as the Enlightenment, with its emphasis on scientific discovery, and the use of logic and reason to make sense of the world, and the Industrial Revolut ion, which saw a widespread move of populations from rural areas to the cities in search of work in factories which had begun to spring up. The French Revolution of 1789 was evidence of great changes in political understanding also. In some ways the Romantic movement was a reaction to these seismic events: a key characteristic of this period is that writers began to focus on ââ¬Å"the powers and terrors of the inner imaginative lifeâ⬠(Watson, in Watson and Towheed, 2011, p. 3) In the Wordsworth text, the power of the inner imaginative life of the author is presented as something positive, sweet and pleasant, citing ââ¬Å"visionary things, and lovely forms/And sweet sensationsâ⬠¦Ã¢â¬ (Wordsworth, ll. 61-62). He speaks of the power of his own former years, (Wordsworth, l. 51) and depicts the task of capturing them in writing as a form of ââ¬Å"honourable toilâ⬠(Wordsworth, l. 53). Wordsworthââ¬â¢s early life is presented as an idyllic scene, painted for the re ader under a shining sun, evoking strong emotions for their edification and enjoyment, in a timeless English countryside. De Quincey also aims to arouse the emotions of the reader, but in his text the emotions that he evokes are somewhat more extreme, and tinged with danger and excitement, since he mentions for example that be might ââ¬Å"shockâ⬠his readers with the revelations that are to come. Both personas are presented as something out of the ordinary, in order to captivate the interest of the reader, and this also is a feature of the Romantic sensibility: ââ¬Å"The idea of the writer as an original genius, an exceptional man ahead of his time, possessed by inexplicable, spontaneous, visionary inspiration, first became dominant in the Romantic period.â⬠(Watson, in Watson and Towheed, 2011, p. 7) Both men introduce themselves to the reader as older, wiser individuals who have retired from their busy life to devote themselves to inner contemplation and recording thei r innermost thoughts about their own experiences. Wordsworth displays his academic credentials through lofty abstract terms such as ââ¬Å"inquiryâ⬠(l. 55), ââ¬Å"knowledgeâ⬠(l. 57), and ââ¬Å"judgementsâ⬠(L. 59) while de Quincey finds it necessary to spell out the fact that he has been reading various very academic writers, and that he is ââ¬Å"
Saturday, November 2, 2019
Identifying a Researchable Problem Research Paper
Identifying a Researchable Problem - Research Paper Example During physical activity, the body uses more oxygen than when one is passive. Regular physical activity will therefore lead the body to adapt to providing more and more oxygen into the blood stream. Reports by various scholars point out to the fact that children with reduced mobility have been diagnosed with asthma more than their highly mobile counterparts (Daniels, 2006). This revelation, combined with the fact that sometimes asthma is also common among obese children point out to the possibility that asthma may indeed be controlled through physical activity. This is because physical activity eventually makes the body to adapt to the increased intake of oxygen by developing mechanism which allows increased oxidation of blood. Such mechanism is postulated to be capable of limiting chances of alveoli constriction ad therefore greatly reduce the chances of asthma. Amongst the adolescents, increased physical activity may be seen as one possible way through which asthma may be contained . Statement of General Aims and Objectives The aim of the proposed study is to find out the connection between the role of physical activity and human health. From the fact that the human body usually adapts to conditions around it, this study shall aim at finding out the extent to which teenagers adaption to physical activity may reduce the chances of asthmatic attack for those who are already asthmatic. The paper shall focus on the role of physical activity in treating asthmatic ad related conditions in adolescents. The study shall also focus on what short term benefits physical activity may offer to asthmatic adolescents. The study shall assume that learned physical activity will go a long way to assist adolescents develop healthy lifestyles in their adult lives. Research Questions: Using PICO Model The study shall be conducted based on the guidance from the following research questions: 1. To what extent can asthmatic conditions be attributed to lifestyle? 2. Are adolescents who are less active physically likely to have health complications than their active counterparts? 3. What is the connection between patient diagnosed with asthma and physical mobility? 4. Can increased physical activity reduce the chances of asthmatic attack? 5. Do asthmatic adolescent who are engaged in physical activity show more progress towards recovery from asthmatic attacks? From the research questions, the study shall be conducted under the following hypotheses 1. Asthmatic condition in adolescents are majorly attributed to lifestyles 2. Adolescents who are less active physically are likely to have health complications than their active counterparts 3. Many patients diagnosed with asthma are usually physically inactive 4. Improved physical activity reduces the chances of frequent asthmatic attacks 5. Asthmatic adolescent who are engaged in physical activity are more likely to show more progress towards recovery from asthmatic attacks than those who are passive? Methods The stud y shall aim at working with adolescents. There shall be a need to seek approval from the school and parents from the sample that shall volunteer for the study. Much focus will be based on those adolescents who are already asthmatic. This will especially be so in order that a comparison shall be made possible. For reliability, rather than numbers, the study shall focus on different schools. It is anticipated that the target sample
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