Electrical Automation Graduation Thesis Example
Introduction: electrical automation students, want to know how to write a graduation thesis example is standardized? Below is the reference sample essay I provide for you.
Electrical automation graduation thesis sample
I. Electrical automation in port operations specifically applied to automatic positioning, dynamic scheduling management system, wireless data communication, etc., so that greatly improves the operational efficiency of the waterway, saving labor costs and labor expenses. Under the premise of saving resources, greatly improve the efficiency of port operations, so that the work of the waterway can run efficiently, while enabling the development of the economy and international trade to be satisfied, to achieve the technology and economic development of both sides can benefit.
Second, the main factors affecting the development of electrical automation
1, the decisive influence of information technology. Information technology, broadly speaking, refers to all means of human development and utilization of information, including computers, worldwide high-speed broadband computer networks and communications technology, as well as used for sensing, processing, storing and displaying a variety of information and other related supportive technologies integrated.
Modern information technology is based on modern electronic technology, so it is also known as modern electronic information technology. It is based on computers, communications, automatic control, optoelectronics and other modern technologies as the main body of a variety of information acquisition, transmission, processing, processing and utilization. Modern information technology mainly includes microelectronics, photonics, optoelectronics, molecular electronics and other related components manufacturing information base technology, the realization of information acquisition, transmission, processing, control and other functions of the system or device information system technology, used in various fields of social and economic life of information application technology.
Information technology has a greater dominant influence on the development of electrical automation. The development of information technology depends to a large extent on the continuous technological innovation in many subject areas in electrical automation. In turn, advances in information technology provide the basis for newer and more advanced tools for technological innovation in the field of electrical automation.
2. Closer ties with the physical sciences. Due to the invention of transistors and the development of large-scale integrated circuit manufacturing technology, solid-state electronics in the second half of the twentieth century on the growth of electrical engineering has played a huge role in promoting. The close connection and crossover between electrical automation and the physical sciences will remain the key to electrical automation in the future, and will broaden to include biological systems, photonics, and microelectromechanical systems.
3, the rapid development of modern technology. The rapid progress of modern technology and analysis methods, design methods, 'rapidly changing, will inevitably lead to rely on modern technology, electrical automation will also develop rapidly.
Third, the direction of the development of electrical automation
1, electrical automation product innovation
Electrical automation manufacturers can be in accordance with the national medium- and long-term scientific and technological development plan put forward by the objective of the task, and constantly improve the open conditions of the ability of the original innovation, the ability to integrate the innovation and the ability of the introduction of digestion, absorption and re-innovation. Further improve the scientific and technological content of their products, research and development and production of better electrical automation control systems and products with independent intellectual property rights, and increase the development of independent innovation, providing more and more space. Establish the main position of enterprises in technological innovation, improve the institutional mechanism and policy environment, and accelerate the implementation of major national scientific and technological special projects. China has now formed a low-end products to domestic enterprises, small and medium-sized project selection of domestic products market pattern. Electrical automation production enterprises should strive to create a new situation of scientific development, adhere to improve the ability of independent innovation, accelerate the transformation of the mode of economic growth, and constantly improve the ability of independent innovation.
2, the unification of the electrical automation system platform
The unification of the electrical automation system platform can support the design of an automation project cycle, implementation and testing, debugging and start-up, operation and maintenance of the various phases and links. This can significantly reduce the time and cost from design to completion. A unified system development platform also meets another important user requirement that the development platform stands above the final operating platform. According to the project characteristics and end-user needs to decide to download the unified operating code to the hardware PLC, Windows NT-based software PLC, embedded NT system or WindowsCE-based control system.
3, the generalization of the structure of the electrical automation system
The generalization of the structure of the electrical automation system is very important for a successful electrical automation control system. The network structure of the entire enterprise should ensure that the field control equipment, computer monitoring system, enterprise management system of data communication between the unimpeded. Enterprise management can through lnternet/Intranet on-site equipment for real-time supervision. In the system network planning, regardless of the choice of fieldbus and field equipment communication or with the parent computer or office system communication Ethernet, the choice of network products must be able to ensure that from the office automation environment to the control level up to the component level of the entire system-wide communication.
4, electrical automation system program interface standardization
Based on Microsoft's standards and technologies, such as WindowsXP, OPC and ActiveX, reducing the engineering time and cost, and facilitating the exchange of data between the electrical automation system and the office system and **** enjoy. The automation solution based on PC platform is crucial when connecting with the MES system and ERP system of the enterprise. Using Windows XP as the operating system and TCP/IP as the communication standard for office environments, the PC creates one of the best interfaces between automation and management platforms. The standardized program interface also ensures the exchange of data between hardware and software products from different manufacturers, effectively solving the communication barriers between them.
5, electrical automation production safety
China's electrical automation companies should recognize the security industry technology multi-system integration integration of the megatrend. Emphasize the integration of security control systems and non-security control systems. Let the customer in the existing non-security control system on the basis of lower development and design costs to achieve their own security programs, is also one of the issues we should think about at present. Electrical automation safety systems and products will become a bright spot in the automation field in the future. For the market characteristics, step by step to open up the market. You can start with the highest safety requirements of the application field, and gradually expand to other less dangerous occasions. Follow the route from factory equipment layer to network layer, from hardware to software, from safety unit to safety system for the application of electrical automation system safety program. Efforts are made to carry out research on the design of electrical automation safety prevention systems. Especially in the field of building intelligence integrated system.
6, operator specialization
Electrical automation system design and installation, often ignoring those who will be in direct contact with the control equipment personnel training. This is usually considered to be the actual operation of the equipment for personnel training is relatively easy, many manufacturers and engineering departments until after the installation and operation of the system, only to start the operators and maintenance personnel for system training. At any time during the installation of the system, the personnel who will eventually have to maintain and operate the equipment in the future will be made aware of the installation process, which will give them a sense of the new system. Through specialized training, operators can better understand why the system was installed in a particular way. In order to cope with sudden failures and repairs in harsh operating environments, it is important to find out the reasons beforehand, otherwise it will affect the ability to make the right judgment about what is going wrong. When a new system is installed, the operator must master these techniques. During the training period, the company to train skilled operators, the system can run, those who will be exposed to the new system personnel to master the hardware equipment and its operation and maintenance knowledge.
With the gradual development of intelligence and information technology, electrical automation involves more industries and fields will be more, the technology is updated faster, more complex, we should continue to absorb the nutrition of high and new technologies, to create a new situation in the development of electrical automation.
References:
[1] Liu Yongqiang. Introduction to the current situation and development prospects of China's electrical automation [J]. Heilongjiang Science and Technology Information. 2011(02)
[2] Li Guodong,Ma Dexin. PC-based electrical automation technology[J]. Heilongjiang Science and Technology Information. 2011(21)
[3] Xu Chunfeng. Application of electrical automation in coal machine products[J]. Science and Technology Information. 2011(04)
[4] Wu Fangjun. Reliability testing and research of electrical automation control equipment[J]. Private Science and Technology. 2011(06)
[Knowledge Expansion]
Dissertation Sample - An Overview of the Development of Computer Science and Technology and Prospects
Since computers began to be popularized at the end of the 1970s in the last century, just a few decades of time, its human economy, military, culture, art, life and even politics has had an immeasurable impact. Therefore, it is necessary for us to have a comprehensive understanding of the development history and future development of computers. In this paper, due to space constraints, we can only summarize the key nodes of computer development.
At the beginning, it was predicted that computers might have some human intelligence, and in fact, this subject is no longer science fiction, but a very serious application of science and technology. But here we need to trace the history of the time again: Turkle, a professor of sociology at the Massachusetts Institute of Technology (MIT), is an expert in computer psychology, and has written two seminal books on computer psychology, one on The Second Self: Computers and the Human Spirit, and the other on Life on the Computer Screen: Characteristics of the Internet Age. Turkle has been studying the relationship between people and computers since the late 1970s. She says, "Computers are characterized between ( /bylw/ ) objects and non-objects." Obviously, computers are objects, but on the other hand, computers can give feedback, can have behavior, reason, and even spirit. People find themselves in an interactive relationship with computers, and even feel as if the computer is alive.
Prof. Turkle is particularly interested in the relationship between children, computers, and electronic toys. She found that teenagers primarily use computers to explore cognitive problems, while children between the ages of eight and twelve, i.e., before puberty, primarily attempt to become proficient with machines and electronic toys. Turkle found that computer toys serve to stimulate purely rational speculative thinking in children between the ages of five and eight. These computer toys, she says, prompt us to consider questions like "what is life?
Discussing how computers differ from humans is certainly one of the most important questions. There may be computers in the future that are as smart as humans, but humans still have to cook, they have to build families, they have to open restaurants, and they may be the only creatures on the planet that go to church. In other words, the space left by computers for humans is emotional, sensual, family life. Analog thinking may qualify as a mind to some extent, but analog feelings can never be seen as real feelings.
Microsoft's Windows operating system is Turkle's current focus. Windows allows users to perform several tasks at the same time that have nothing to do with each other, and to switch between them at will. This is clearly a revolution, because Microsoft Windows allows the user to issue several commands on the computer at the same time, and to cycle between these commands in a way that has some of the characteristics of human mental activity.
In the 1980s, humans might have been able to try to understand computers by comparing them to their own psyches; today, Turkle says, humans are trying to better understand the human mind by looking at how computers operate. Turkel believes that now the hottest topic of computer psychology research is the assumption that the computer will really move feelings in the end - your computer will have love for you, it needs your care, need to be emotionally nourished - this may be the future of the study of human and machine interaction between the field of the latest trend.
At the moment, humans are not the only ones who are interested in the future of human-machine interaction.
There have been some breakthroughs in the field of computer-controlled smart toys. Some of these toys can speak hundreds of words and have the ability to learn and even curse. Japan's Sony manufactured electronic pet dog IBO, is a representative product of such electronic pet toys. In addition to toys, in terms of intelligent computers, computers are able to understand their owners to speak is no longer rare. At present, the United States Massachusetts Institute of Technology's Media Research Laboratory has developed a computer with artificial intelligence, can be issued by the user's non-verbal signals to respond to, and accordingly, a certain degree of adjustment.
According to Turkel, the future of computers is biologized computers, which are becoming more and more sentient and perceptive. From a sociological point of view, this would be a great leap forward, and worthy of scholarly experts to explore.
The current computer to nanoseconds (billionths of a second) as a unit of operation, its speed greatly exceeds the human brain, equivalent to the human brain computing power of more than one million times. However, computers are still far behind the diversity of the human brain's information processing capabilities.
Why is the "intelligence" of computers different from that of humans? One of the reasons lies in the difference between the two information processing modes. The computer's information processing is based on the logical manipulation of concepts embodied by notation, while the human brain's information processing is based on graphics, non-linear, parallel and complex capabilities. It can also be said in this way: computers use only logical thinking, while the human brain uses not only logical thinking, but also figurative thinking. Obviously, the human brain to consider the problem than the computer more reasonable, more accurate, more scientific, and therefore more efficient, faster.
Some people try to imitate the human brain model to create a computer with human-specific functions, and the ATR Institute for Human Information and Communication in Japan is currently developing a computer that mimics the human brain as a whole. Since the mechanisms of the human brain have not been fully understood to date, there is more than one type of research going on in the field of "brain computers.
The neural circuitry of the human brain is not perfect from the beginning, but is formed by the combination of nerve cells during the growth process. This process is realized as a hardware construction, and it is a "self-propagating artificial computer based on hardware evolution". This system, called a CAM think tank, would contain billions to tens of billions of nerve cells, and would aim for these nerve cells to be able to function in complete parallel.
Some scientists are looking specifically at computerizing parts of the human brain. The human brain is characterized by a three-dimensional structure with multiple overlapping cell layers and a high degree of parallel processing. Based on this understanding, Tohoku University in Japan has undertaken the development of an artificial retinal chip with a laminated-type structure, and is expected to create a system with visual information processing functions that approximate those of a human being. The Institute of Physical Chemistry in Japan has recently begun to explore the development of brain-based computers through the development of advanced small robots. The institute is using different small robots to simulate the human brain according to its processing circuitry to study issues such as brain cognition, learning, and control.
At present, people mainly through three ways to develop like the human brain has self-discipline and creativity, can carry out highly intelligent operation of the computer. One is the study of artificial intelligence; the second is the structure of the human brain as a model, made of artificial nerve cells as the basis of the brain computer, which is also known as the neural computer; the third way is to develop electronic circuits that can work like a neural network to automatically generate the "artificial brain".
The scope of research on brain-based computers is very broad, but most of the work today is still in the basic stage. That's because it's not easy to figure out the mechanisms of the human brain. Experts believe that in order to understand the role of the extremely complex human brain, it is necessary to carry out interdisciplinary multifaceted research, synthesis, organization to obtain comprehensive information. For example, by understanding the physiological functions of the brain at work, it is possible to obtain fine research results at the stage of nerve cell research, but there is some difficulty in capturing human brain activity at the macro level. In addition, major topics such as the relationship between the human brain and the body as a whole are also very important, and it is difficult to understand the workings of the brain without the ability to synthesize.
;