基于云计算的分布式教育管理系统的设计开发v7.2大学论文

《基于云计算的分布式教育管理系统的设计开发v7.2大学论文》由会员分享，可在线阅读，更多相关《基于云计算的分布式教育管理系统的设计开发v7.2大学论文（106页珍藏版）》请在装配图网上搜索。

1、les disposicions pertinents de lestat a la verticalitat seguretat supervisi i gesti departaments per avaluar operacions especials unitat nacional ha aconseguit qualificat personal format certificat abans de participar en el corresponent treball o gesti. 7, ls de la unitat dequipament especial ha de

2、ser seguretat equip especial dequipament especial operador educaci i formaci, i operadors dequips especials disposen del material necessari especial per assegurar la seguretat operacional de coneixement. 14, pont de normes de seguretat operaci 1, capit, el monitor i els principals tipus de treballad

3、ors ha entrenat a correus. Unitat 2, el treballador ha de tenir suficient energia, temps de treball no pot excedir de 12 hores al dia. 3, personal de la unitat est estrictament prohibit beure. 4, est estrictament prohibit per a erecci mquina de biga moviment longitudinal i lexterior a la nit. 5, un

4、pont en ambds costats de lrbita longitudinal alta els requisits de nivell, per mantenir un equilibri. Els requisits lateral pista datletisme i un control estricte de lespai, tres pistes ha de ser parallel. 6, installaci de biga de formig de biaix pont, poca Erector, 0, 1, 2a fase, deixat per trontol

5、len i tornada, limport es calcula segons els angles oblics i lamplada de les rodes desquerra i dreta, per tal que els cotxes poden crrer sobre una pista horitzontal. 7, pont de desplaament longitudinal per fer tots els preparatius, un cop a lloc, Midway pausa el menys possible. 8, instal lar superio

6、r i inferior pendent vertical, desplaament longitudinal de mquina pont ha de tenir les mesures per evitar la diapositiva, com ara filet triangular rodes anterior i posterior per a la protecci, espai especial columna 1, molt a prop de la biga, al control de latenci. 9, un pont penjant penjant de prov

7、ar que la installaci de la mquina ha de ser corregut, tamb es pot utilitzar desprs de la crrega de la prova de la biga de formig i pont erigir mquina i llavors crrer per comenar la feina dinstallaci. 10, quan erigir installaci mquina, comprovacions de seguretat regular, una seguretat integral compro

8、va cada installaci un forat ha de ser trobat per aturar el treball i tractada puntualment amb funcionament intermitent, treball mecnic i elctric amb malaltia no estan permeses. 11, la sobrecrrega doperaci dinstallaci no s perms. Nivell, ha de ser enfortida sobre terreny prou slida, coixinets Outrigg

9、er cal afegir per a incrementar la capacitat de la terra. (2) velocitat del vent s superior a 13.8M / s (equivalent a 6 vent), grua no deures, quan la longitud de bra s superior a 50 m quan la velocitat del vent no podr ser superior a 9.8M / s (lequivalent de 5 vent). I prestar atenci als efectes en

10、 lestabilitat de la grua, vent no penjar-se, davant el vent t alguns perills, alant el contrari. (3) estrictament segons la capacitat nominal quan laixecament de la taula i aixecar loperaci corba desociety; after after 60 years of development, the socialist society more full of life And vigor. The r

11、emarkable sign is in China adhere to the basic principles of scientific socialism, not lost ancestors, always adhere to dialectical materialism and historical materialism as the theoretical foundation, adhere to the to the realization of communism as the supreme ideal, adhere to the Party of the wor

12、king class as the core of leadership, insist to liberate and develop productivity is the fundamental task, adhere to represent the most numerous peoples fundamental interests, adhere to public ownership and according to work, distribution is the basis of the socialist economic system, adhere to the

13、position of the people as masters of the country is the essential characteristic of the socialist democratic politics, adhere to reform and improve the socialist system and institutional mechanisms, and so on. At the same time, our country socialist And with distinct Chinese characteristics, the roa

14、d of socialism with Chinese characteristics, the system of theories of socialism with Chinese characteristics and the socialist system with Chinese characteristics, are deeply rooted in the creative practice of hundreds of millions of peoples indomitable, timely response to practice innovation theor

15、y calls, rich heritage of both historical and cultural traditions of the Chinese nation, and let the Chinese people love to see and hear the Chinese style and Chinese style, comply with the requirements of the development of the times, reflect the common aspiration of the people, with distinct chara

16、cteristics of the practice, theoretical characteristics, national characteristics, characteristics of the times. Therefore, it can always maintain the vigor and vitality, and always guide contemporary China along the right direction stride forward. So we must always hold high the great banner of soc

17、ialism with Chinese characteristics unswervingly. On the other hand, Chinas socialist society is still in primary stage, which is Chinas construction of socialist modernization insurmountable historical stage, the need for hundreds of years time. Chinas socialist system was born in semi colonial and

18、 semi feudal society, productivity level is far behind in the developed capitalist countries, which determines the our country must experience a long primary stage, to realize in other countries under the conditions of capitalism to achieve industrialization and production in the market, socializati

19、on and modernization. Today, our country socialism has made remarkable tremendous To accelerate the pace of achievements, but our country fundamental realities of the country is still has a large population, weak thin, development is not balanced. Chinas economy has leapt to the world, but the per c

20、apita gross domestic product is still ranked in the world the 90%; economic sustained and rapid development, but the development is not balanced, coordinated, can not be continued problems are still prominent, the transformation of economic developmentManipulator is now used as a industrial robots i

21、n use, the control objectives often appear often in industrial automation. Industrial automation technology has gradually matured, as mature a technology line has been rapid development in industrial automation as a separate subject. Manipulator application began to filter into welding, logistics, m

22、echanical processing, and other industries. Especially at high or very low temperatures, full of poisonous gases, high radiation case, robot in similar circumstances showed great use also brings great convenience to the staff. Precisely because of this robot to get peoples attention began to be a hi

23、gh degree of development. Labor rates, working conditions, labor intensive aspects of promoting development. Both at home and abroad to develop the PLC (programmable logic controller) is in various special circumstances and under special conditions set for mechanical devices. Now turned on the devel

24、opment of the microelectronics automatic control technology and the rapid development of the trains, the success of PLC hardware software and simulation control win big and successful development, now continues to develop as a factory automation standards. Because robots are good development of the

25、technology makes a good optimization of productive capital, and robot shows this unique advantages, such as: has good compatibility, wide availability, hardware is complete, and programming that can be mastered in a short time, so in the context of industrial PLC applications became ubiquitous. Mani

26、pulator in many developed country agriculture and industry has been applied, such as the use of mechanical harvesting large areas of farmland, repeated operations on the high-speed line that uses a robotic arm, and so on. Today, the high level of automation combined with restrictions on the manipula

27、tor development level is slightly lower than the international. The design is mainly arm welding machine by PLC Automation control. This of design let designers on in school by learn of has a must of consolidation, understand has some usually didnt opportunities awareness in world range within some

28、leading level of knowledge has has must awareness, hope designers can in yihou of design in the can success of using in this design in the proceeds of experience 1.2 manipulator in both at home and abroad of research profile automation mechanical arm research began Yu 20th century medium-term, after

29、 years with with computer and automation technology of development, Makes mechanical arm on the Grand stage of industrial automation and shine, gradually became an industrial evaluation standards, and its importance can be seen. Now original robotic arm spent most of mass production and use on the p

30、roduction line, which is programmed robotic arm. As the first generation of manipulator position control systems main features, although not back several generations that can detect the external environment, but can still successfully complete like welding, painting, delivery as well as for material

31、s simple movements. Second generation mechanical arms are equipped with sensors and manipulators have the environment there is a certain amount of sense, when the mechanical arm is to use the program as a basis. Difference is that the robot begand电 子 科 技 大 学UNIVERSITY OF ELECTRONIC SCIENCE AND TECHN

32、OLOGY OF CHINA专业学位硕士学位论文MASTER THESIS FOR PROFESSIONAL DEGREE论文题目 基于云计算平台的分布式教育管理系统的 设计开发 专业学位类别 软件工程 学 号 作 者 姓 名 指 导 教 师 les disposicions pertinents de lestat a la verticalitat seguretat supervisi i gesti departaments per avaluar operacions especials unitat nacional ha aconseguit qualificat persona

33、l format certificat abans de participar en el corresponent treball o gesti. 7, ls de la unitat dequipament especial ha de ser seguretat equip especial dequipament especial operador educaci i formaci, i operadors dequips especials disposen del material necessari especial per assegurar la seguretat op

34、eracional de coneixement. 14, pont de normes de seguretat operaci 1, capit, el monitor i els principals tipus de treballadors ha entrenat a correus. Unitat 2, el treballador ha de tenir suficient energia, temps de treball no pot excedir de 12 hores al dia. 3, personal de la unitat est estrictament p

35、rohibit beure. 4, est estrictament prohibit per a erecci mquina de biga moviment longitudinal i lexterior a la nit. 5, un pont en ambds costats de lrbita longitudinal alta els requisits de nivell, per mantenir un equilibri. Els requisits lateral pista datletisme i un control estricte de lespai, tres

36、 pistes ha de ser parallel. 6, installaci de biga de formig de biaix pont, poca Erector, 0, 1, 2a fase, deixat per trontollen i tornada, limport es calcula segons els angles oblics i lamplada de les rodes desquerra i dreta, per tal que els cotxes poden crrer sobre una pista horitzontal. 7, pont de d

37、esplaament longitudinal per fer tots els preparatius, un cop a lloc, Midway pausa el menys possible. 8, instal lar superior i inferior pendent vertical, desplaament longitudinal de mquina pont ha de tenir les mesures per evitar la diapositiva, com ara filet triangular rodes anterior i posterior per

38、a la protecci, espai especial columna 1, molt a prop de la biga, al control de latenci. 9, un pont penjant penjant de provar que la installaci de la mquina ha de ser corregut, tamb es pot utilitzar desprs de la crrega de la prova de la biga de formig i pont erigir mquina i llavors crrer per comenar

39、la feina dinstallaci. 10, quan erigir installaci mquina, comprovacions de seguretat regular, una seguretat integral comprova cada installaci un forat ha de ser trobat per aturar el treball i tractada puntualment amb funcionament intermitent, treball mecnic i elctric amb malaltia no estan permeses. 1

40、1, la sobrecrrega doperaci dinstallaci no s perms. Nivell, ha de ser enfortida sobre terreny prou slida, coixinets Outrigger cal afegir per a incrementar la capacitat de la terra. (2) velocitat del vent s superior a 13.8M / s (equivalent a 6 vent), grua no deures, quan la longitud de bra s superior

41、a 50 m quan la velocitat del vent no podr ser superior a 9.8M / s (lequivalent de 5 vent). I prestar atenci als efectes en lestabilitat de la grua, vent no penjar-se, davant el vent t alguns perills, alant el contrari. (3) estrictament segons la capacitat nominal quan laixecament de la taula i aixec

42、ar loperaci corba demode and deepen the reform task of industrialization, urbanization and agricultural modernization, but the industry is big and not strong, agricultural base is still weak, rural development is relatively lagging behind, farmers income difficult problem is still a lot of; ideologi

43、cal and moral construction has made important progress, but some areas of moral anomie, integrity deletion The National Peoples life has reached a comparatively well-off level, but the gap between urban and rural areas and residents income distribution is stillAlthough large, education, employment,

44、social security and other vital interests of the masses is also more, part of the life of the masses remains difficult; the creative vitality of society generally increased, but the impact social harmony and stability of the various contradictions also many; and so on. These shows, our country is st

45、ill in and will remain so for a long time the basic national conditions of the primary stage of socialism has not changed, the peoples growing material and cultural needs with the contradiction between the backward social production, the social principal contradiction does not change, our countrys i

46、nternational status as the largest developing country in the world has not changed. I have to the problem, make decisions, do things, to promote reform and development of the any aspect of any field, Should be firmly based on the primary stage of socialism, the largest practical, do is not beyond th

47、e stage, and is not backward reality, both best effort, and our capabilities. the main content is what? , a total of eight, 281 words, including lead, the party honest self-discipline norms and the leadership of the party members and cadres self-discipline norms 3 parts, the main contents can be sum

48、marized as four must eight code. Lead part, reiterated on ideal and faith, the fundamental purpose, the fine traditions and work style, noble sentiments, such as four must principle, emphasized self-discipline, accept Higher request for self-discipline supervision subject. Finally, the foothold in m

49、aintaining the partys advanced nature and purity, to reflect the revised guidelines. Party members standard part around the party members how to correctly treat and deal with the public and private, cheap and rot thrifty and extravagance and bitter and music the relationship between the four norms.

50、Party leader cadre clean fingered self-discipline norms for the leadership of the party members and cadres of the vital few, around the clean politics, from civil servant character, the exercise of power, moral integrity, a good family tradition and other aspects of the leadership of the party membe

51、rs and cadres four norms. the Party member of self-discipline norms and party members Guide cadre is clean fingered self-discipline norms, a total of eight, collectively referred to as the eight code . four must eight codemanipulator control mode and programmable controllers introduction 2.1 Select

52、discussion with manipulator control 2.1.1 classification of control relays and discrete electronic circuit can control old industrial equipment, but also more common. Mainly these two relatively cheap and you can meet the old-fashioned, simple (or simple) industrial equipment. So he can see them now

53、, however these two control modes (relay and discrete electronic circuits) are these fatal flaws: (1) cannot adapt to the complex logic control, (2) only for the current project, the lack of compatibility and (3) not reforming the system with equipment improvements. Spring for the development of Chi

54、nas modern industrial automation technology the substantial increase in the level of industrial automation, completed the perfect relay of the computer too much. In terms of controlling the computer showed his two great advantages: (1) each of the hardware can be installed on one or more microproces

55、sors; (2) the official designer of the software writing content control is all about. Now in several ways in the context of industrial automation can often be seen in three ways: (1) Programmable Logical Controller (referred to as IPC); (2) Distributed Control System (DCS for short), and (3) the Pro

56、grammable Logical Controller (PLC for short). 2.1.2 PLC and the IPC and DCS contrast contrast 1, each of the three technologies of origins and development requirements for fast data processing makes it invented the computer. The men brought in terms of hardware there, using a high level of standardi

57、zation, can use more compatibility tools, is a rich software resources, especially the need for immediacy in operational systems. So the computer can effectively control is used to control and meet its speed, on the virtual model, real-time and in computational requirements. Distributed system start

58、ed with a control system for industrial automatic instrument used to control, whereas now it is successfully developed into industrial control computer used as a central collection and distribution system and transition of distributed control system in analogue handling, loop control, has begun to r

59、eflect the use of a huge advantage. Though distributed system has great advantages in loop regulation, but only as a means of continuous process control. Optimization of PLC is the corresponding relay needs was born, its main use in the work order control, early primary is replaced relay this hulkin

60、g system, focused on the switch controlling the running order of functions. Marked by the microprocessor in the early 1970 of the 20th century emerged, micro-electronics technology has developed rapidly, people soon microelectronics processing technology will be used in the Programmable Logical Cont

61、roller (that is分类号 密级 UDC注1 学 位 论 文基于云计算平台的分布式教育管理系统的设计开发指导教师 申请学位级别 硕士 专业学位类别 软件工程 工程领域名称 软件工程 提交论文日期 论文答辩日期 学位授予单位和日期 电子科技大学 年 月 日 答辩委员会主席 评阅人 注1：注明国际十进分类法UDC的类号。DESIGN AND DEVELOPMENT OF EDUCATION MANAGEMENT SYSTEM BASED DISTRIBUTED CLOUD COMPUTING PLATFORMA Thesis Submitted toUniversity of Elect

62、ronic Science and Technology of ChinaMajor: Author:Advisor:School :独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作及取得的研究成果。据我所知，除了文中特别加以标注和致谢的地方外，论文中不包含其他人已经发表或撰写过的研究成果，也不包含为获得电子科技大学或其它教育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何贡献均已在论文中作了明确的说明并表示谢意。作者签名： 日期： 年 月 日论文使用授权本学位论文作者完全了解电子科技大学有关保留、使用学位论文的规定，有权保留并向国家有关部门或机构送交论文

63、的复印件和磁盘，允许论文被查阅和借阅。本人授权电子科技大学可以将学位论文的全部或部分内容编入有关数据库进行检索，可以采用影印、缩印或扫描等复制手段保存、汇编学位论文。（保密的学位论文在解密后应遵守此规定）作者签名： 导师签名： 日期： 年 月 日III摘 要摘 要计算机使用的普及，带来的是高新技术的浪潮，在推进社会的发展同时，也给人们的生活带来了极大的便利。而计算机管理系统也应运而生，逐步得以完善。通过学习国外的计算机教学管理理念和技术，国内的教育管理也渐渐地实现了信息化、智能化。云计算平台的分布式教育管理系统是通过对现实教育管理体制的弊端分析，融合云计算平台的服务，从而在给高校教师职工提供基本管理功能的同时，拓展整个教育管理系统相关功能。从而真正实现用高科技来促进传统教育管理体制的革新，用高效的运行系统给职工提供便利，对学籍信息、师生信息、课程安排、成绩信息等关键的信息予以科学合理的管理。整个系统的用户将主要分成系统管理员、教师以及学生，通过系统后台的权限管理来控制各个用户的权限，从而将数据进行保护，也实现了教育系统的人性化管理。系统主要就是管理教育过程中的学生信息以及老师课程，