基于PLC的物料分拣系统设计外文翻译
毕业论文外文文献翻译PLC物料自动分拣系统PLC-automatic-sorting-system

毕业设计(论文)外文文献翻译文献、资料中文题目:PLC物料自动分拣系统文献、资料英文题目:文献、资料来源:文献、资料发表(出版)日期:院(部):专业:班级:姓名:学号:指导教师:翻译日期: 2017.02.14外文翻译PLC今天PLC (programmable logical controller),可编程序逻辑控制器)面临着更为复杂的挑战。
当初,它们悄悄地取代了继电器、接触器并时不时见诸于公司主框架的报告。
而今,他们已经组成了各种单元、被赋予新的任务、使用新的语言,并面临着与各种新型控制产品竞争。
作为每年一度PLC技术最新报道,我们请教了PLC市场销售人员,制作了这个专刊。
编程语言高级PLC编程语言已经在有些方面很普及,但是最近高级编程语言已经迅速发展。
西门子的总经理兼生产部长指出:“可编程控制在被广泛的应用与于精密操作,除了梯形图逻辑以外的编程语言变得更加实用、有效和强大。
例如,用梯形图逻辑写一个三角函数公式是非常困难的。
”被接收的语言包括Boolean,控制系统流程图编制,和如公式编制语言Graphtec和与它类似的语言,并且还有增加的重要语言如C语言和BASIC语言。
过程控制中的PLCPLC还没有广泛的应用于过程控制中。
是否会一直这样下去呢?北美GE Fanuc一系列和六系列的生产企划经理Ken Jeannette说:“我觉得PLC将被用于过程控制但是对于过程控制又不是必须的。
”一些厂家十分确定PLC不会广泛用于过程控制。
Rich Ryan经理提到PLC 在食品、化学和石油等工业领域越来越多的应用。
他认为PLC适合应用于场合有两种,他说:“第一,过程控制系统的型号不适合离散控制系统,刚开始这些产品的价格非常的高。
而一个可编程控制器以它的体积小,价格低顺理成章的被应用。
第二,你必须把电路和逻辑紧密的结合起来。
例如,一组基本的控制器,连续的过程变量紧密的互相联系在一起,以至于用可编程控制器来完成一系列的逻辑胜过没有离散控制器的系统。
基于S7300PLC物料分拣系统的设计设计

本科生毕业设计(论文)学院:电子与电气工程学院专业:自动化学生:指导教师:完成日期年月基于S7-300 PLC物料分拣系统的软件设计Software Design of Material SortingSystem Based on S7-300 PLC总计:29页表格:3个插图: 20 幅本科毕业设计(论文)基于S7-300 PLC物料分拣系统的软件设计Software Design of Material Sorting System Based on S7-300 PLC学院:电子与电气工程学院专业:自动化学生姓名:学号:指导教师(职称):评阅教师:完成日期:基于S7-300 PLC物料分拣系统的软件设计自动化专业[摘要] 本文是基于西门子S7-300 PLC和西门子触摸屏的物料分拣系统设计。
采用S7-300 PLC为控制器,以西门子触摸屏为人机对话接口。
通过分析控制系统的工艺流程,利用西门子编程软件STEP 7完成了PLC的程序设计,实现了气动机械手对物料的分拣功能。
同时使用西门子HMI软件Wincc Flexible设计系统监控画面,定义I/O 设备,构造数据库,建立动画连接并与硬件系统进行了联合调试,在触摸屏上实现了对系统的实时控制。
[关键词]物料分拣;气动机械手;S7-300 PLC;触摸屏Software Design of Material SortingSystem Based on S7-300 PLCAutomation Specialty XU Bao-haiAbstract: This paper designs the material sorting system on the basis of Siemens S7-300 PLC and Siemens touch screen. S7-300 PLC is utilized as the controller and Siemens touch screen is adopted as the human machine interface conversation. By analyzing the control system process flows, PLC procedures are designed by means of Siemens’programming software STEP 7, and the purpose of materials’ sorting function with pneumatic manipulator is achieved. Meanwhile, Siemens’ HMI software, Wincc Flexible, is used to design monitor- ing screen of system, to define I/O equipments, to construct the database, to build animation and to debug on-line with hardware system. In the end, the goal of real time monitoring for the system on the touch screen is achieved.Key words: Material sorting; pneumatic manipulator; S7-300 programmable logic controller; touch screen目录1 引言 (1)1.1 物料分拣系统的概述 (1)1.2 物料分拣系统的国内外研究现状 (1)1.3 研究的目的及意义 (1)2 物料分拣系统的硬件分析 (2)2.1 控制系统的设计 (2)2.1.1 物料分拣系统的分析 (2)2.1.2 控制器的选型 (2)2.2 空气压缩机的工作原理及使用 (3)2.3 接近开关的工作原理 (3)2.4 带磁性开关的气缸的工作原理 (4)2.5 光纤传感器的工作原理 (4)2.6 电控换向阀的工作原理 (4)2.7 NPN型电平与PNP型的转换 (5)2.8 物料分拣系统的结构 (5)3 物料分拣系统的软件设计 (6)3.1 PLC程序设计步骤 (6)3.2 机械手移动的工艺流程 (7)3.3 PLC程序的地址分配 (7)3.4 程序流程图的设计 (8)3.4.1 物料分拣系统的工作流程 (8)3.4.2 程序流程图的设计 (10)3.5 物料分拣系统程序的设计 (10)3.5.1 PLC的编程原则 (10)3.5.2 STEP 7 V5.4编程软件的使用 (10)3.5.3 程序的设计 (13)4 HMI(触摸屏)的应用 (13)4.1 HMI概述 (13)4.2 HMI实现方法和步骤 (13)4.2.1 HMI组态 (13)4.2.2 HMI与PLC的连接和传送 (16)结束语 (18)参考文献 (19)附录..................................................... 错误!未定义书签。
基于PLC的自动分拣系统的设计

2018年第5期时代农机TIMES AGRICULTURAL MACHINERY第45卷第5期Vol.45No.52018年5月May.2018基于PLC 的自动分拣系统的设计李梦瑶(永城职业学院,河南永城476600)作者简介:李梦瑶(1985-),女,硕士,助教,研究方向:控制理论与控制工程。
摘要:分拣工作是物流配送中的一个最重要的环节,原有的人工分拣的缺点很多,已经不能适应现代化的生产节奏。
自动分拣能提高物流配送的工作效率、降低成本、节省人力,而且也能提高分拣的正确率。
自动分拣机可以依据不同用户的订单要求和配送安排,快速、无误地将商品或物料自动分拣出来,并能进行连续作业。
本设计是在理解自动和分拣系统基本原理的基础上,以PLC 为控制核心,结合变频器、触摸屏、电磁阀气缸、传感器技术等技术,从而完成对物品的自动分拣工作。
关键词:PLC;分拣;自动;变频器现代物流业的关键词就是自动化。
物流中最关键的步骤就是分拣,分拣即是根据不同的物料进行分类并归置,放到不同的物料桶中。
可编程控制器(简称PLC )是一种专门用于工业控制的计算机。
本设计中的自动分拣机利用PLC 为控制系统,对3种不同物料进行自动分拣。
硬件系统主要由铝合金导轨式实训台、上料机构、上料检测机构、搬运机构、物料传送、分拣机构等组成。
图1是本设计中的自动分拣系统的结构图。
其中PLC 为控制器。
系统的控制部分由PLC 、触摸屏构成。
系统的执行机构则是气动电磁阀气缸构成的气压驱动装置,来完成物料的抓取、传送、分拣。
进而使真个分拣系统自动连续工作,完成物料的自动分拣工作。
图1自动分拣系统的结构图1工作原理工作流程如下:①送料;通过送料电机的驱动放料盘旋转,物料由送料槽到提升位置,物料检测光电传感器开始检测有无物料。
②抓料;当物料检测光电传感器检测到有物料,PLC 将接收到传感器发出的指令,PLC 驱动电磁阀上料,机械手臂抓物。
③放料;机械手臂完成将物料放到传送带上,传送带运输物料。
plc单片机 毕业论文文献翻译 中英文对照

外文翻译:The monolithic In order to prevent without authorization the visit or the copy monolithic integrated circuit machine in the procedure, the majority of monolithic integrated circuits all has the encryption to lock the localization or the encryption byte, by protects the internal procedure. If in programming time encrypts locks the localization to enable (locking), is unable with the ordinary programming directly reading in the monolithic integrated circuit the procedure, this is the so-called copy protection or says the fixed function. In fact, such protective measures are very frail, is very easily explained. The monolithic integrated circuit aggressor with the aid of the special purpose equipment or the self-made equipment, using the monolithic integrated circuit chip design in loophole or the software flaw, through the many kinds of technical method, may withdraw the essential information from the chip, gains in the monolithic integrated circuit the procedure. Therefore, has the newest technology extremely as electronic products project engineer which the essential understanding current monolithic integrated circuit attacks, achieves knows oneself and the other side, knows fairly well, can effectively prevent oneself spends the product which the massive moneys and the time laboriously designs the matter occurrence which is counterfeited by a others night between.monolithic integrated circuits attacks technology:At present, attacks the monolithic integrated circuit mainly to have four kind of technologies, respectively is:This technical usual use processor correspondence connection and in the use agreement, the encryption algorithm or these algorithm security loophole carries on the attack. The software attack obtains the success a case in point is to early A T M E L A the T 89 C series monolithic integrated circuit attack. The aggressor has used in this series monolithic integrated circuit cleaning operation succession design loophole, uses from arranges the procedure to lock the localization after the cleaning encryption, stops the next step of cleaning internal program memory data the operation, thus makes to add the dense monolithic integrated circuit not to turn the encryption monolithic integrated circuit, then use programming read-out internal procedure.This technology usually monitors the processor by the high time resolution when the normal operation all power sources and the connection connection simulation characteristic, and through monitors its electromagnetic radiation characteristic to implement the attack. Because the monolithic integrated circuit is an active electronic device, when it carries out the different instruction, the corresponding mains input consumption also correspondingly changes. Like this analyzes and examines these changes through the use special electronic surveying instrument and mathematics statistical method, then gains in the monolithic integrated circuit the specific essential information.the mistake has the technology This technical use exceptionally working condition causes the processor to make a mistake, then provides the extra visit to carry on the attack. Uses the most widespread mistake to have the attack method including the voltage impact and the clock impact. The low voltage and the high voltage attack may usefor to forbid the protection circuit work or to fortected the information. The power source and the clock transient state jump may affect the single scroll instruction in certain processors the decoding and the ece the processor to carry out the misoperation. Perhaps the clock transient state jump can reposition the protection circuit but not to be able to destroy is proxecution.This technology is the direct exposed chip interior segment, then the observation, holds controls, disturbs the monolithic integrated circuit by to achieve the attack goal.In order to facilitate in order to, the people divide into above four kind of attacks technology two kinds, a kind is the invasion attack (physical attack), this kind of attack needs to destroy the seal, then with the aid of the semiconductor test facility, the microscope and the micro locator, several hours even several week time can complete on the special laboratory flower. All micro probes technology all belongs to the invasion attack. Moreover three methods belong to the non- invasion attack, the monolithic integrated circuit which attacks cannot by the physical damage. In certain situation non- invasion attacks is specially dangerous, this is because the non- invasion attack needs the equipment usually to be possible the self-restraint and the promotion, therefore is extremely inexpensive.The majority of non- invasions attack needs the aggressor to have the good processor knowledge and the software knowledge. Is opposite with it, the invasion probe attack then does not need too many initial knowledge,moreover usually may use the one whole set similar technology to cope with the width scope the product. Therefore, the attack often starts to the monolithic integrated circuit from the invasion reverse engineering, the accumulation experience is helpful to the development more inexpensive and the fast non- invasion attack technology.Last step will be seeks the protection melt silk the position and protects the melt silk to expose under the ultraviolet ray. With enlargement factor at least 100 time of microscopes, inputs the foot from the programming voltage the segment to track generally, seeks the protection melt silk.This technical use exceptionally working condition causes the processor to make a mistake, then provides the extra visit to carry on the attack. Uses the most widespread mistake to have the attack method including the voltage impact and the clock impact. The low voltage and the high voltage attack may use for to forbid the protection circuit work or to force the processor to carry out the misoperation. Perhaps the clock transient state jump can reposition the protection circuit but not to be able to destroy is protected the information. The power source and the clock transient state jump may affect the single scroll instruction in certain processors the decoding and the execution.(4) probe technologyThis technology is the direct exposed chip interior segment, then the observation, holds controls, disturbs the monolithic integrated circuit by to achieve the attack goal.In order to facilitate in order to, the people divide into above four kindof attacks technology two kinds, a kind is the invasion attack (physical attack), this kind of attack needs to destroy the seal, then with the aid of the semiconductor test facility, the microscope and the micro locator, several hours even several week time can complete on the special laboratory flower. All micro probes technology all belongs to the invasion attack. Moreover three methods belong to the non- invasion attack, the monolithic integrated circuit which attacks cannot by the physical damage. In certain situation non- invasion attacks is specially dangerous, this is because the non- invasion attack needs the equipment usually to be possible the self-restraint and the promotion, therefore is extremely inexpensive.The majority of non- invasions attack needs the aggressor to have the good processor knowledge and the software knowledge. Is opposite with it, the invasion probe attack then does not need too many initial knowledge,moreover usually may use the one whole set similar technology to cope with the width scope the product. Therefore, the attack often starts to the monolithic integrated circuit from the invasion reverse engineering, the accumulation experience is helpful to the development more inexpensive and the fast non- invasion attack technology.3 invasions attacks general process:The invasion attack first step uncovers the chip seal. Some two methods may achieve this goal: The first kind is dissolves the chip seal completely, the exposed metal segment. The second kind is only moves above the silicon nucleus plastic seal. The first method needs the chip to tests on the jig, with the aid of Taiwan to operate. The second method except needs to have the aggressor certain knowledge and Wants outside skill, but also needs individual wisdom and the patience, but operates relatively quite is convenient.Above the chip plastic may use the knife to open, around the chip epoxy resin may use the aqua fortis perish. The hot aqua fortis can dissolve the chip seal but not to be able to affect the chip and the segment. This process carries on generally under the extremely dry condition, because the water existence possibly can corrode already the aluminum wire connection which exposes.Then first uses the acetone in the supersonic pond to clean this chip by except the remaining nitric acid, then cleans with the clear water by and is dry except the salinity. Not the supersonic pond, jumps over generally this step. In this kind of situation, the chip surface can a little dirty, but not too affects the ultraviolet ray to the chip operation effect.Last step will be seeks the protection melt silk the position and protects the melt silk to expose under the ultraviolet ray. With enlargement factor at least 100 time of microscopes, inputs the foot from the programming voltage the segment to track generally, seeks the protection melt silk.If does not have the microscope, then uses the chip different partially exposes to the ultraviolet ray under and the observed result way carries on the simple search. When operation applies not the opaque slip of paper cover chipby to protect the program memory not by the ultraviolet ray cleaning. Will protect the melt silk to expose in the ultraviolet ray next 5 ~ 10 minutes can broken the protection position protective function, afterwards, will use the simple programming to be possible the direct readout program memory content.Regarding used the protective layer to protect E E P R O the M unit the monolithic integrated circuit to say that, the use ultraviolet ray repositioned the protection circuit is not feasible. Regarding this kind of type monolithic integrated circuit, uses the micro probe technology reading the memory content generally. Opens after the chip seal, puts in the chip under the microscope to be able very easy finding中文翻译单片机为了防止未经授权访问或拷贝单片机的机内程序,大部分单片机都带有加密锁定位或者加密字节,以保护片内程序。
基于PLC控制的物料自动分拣系统设计

基于PLC控制的物料自动分拣系统设计【摘要】可编程序逻辑控制器(简称为PLC)主要是为现场控制而设计,是一种数字运算操作的电子系统,由于具有良好的适应性和可扩展能力,而得到越来越广泛的应用。
传统的物料分拣企业,一直采用人工分拣的方法,致使生产效率低,生产成本高,企业的竞争能力差,为提高企业效率,材料的自动分拣已成为企业的唯一选择。
针对上述问题,本文利用PLC技术,结合气动、传感器和位置控制等技术,设计了一种成本低、效率高的材料自动分拣装置。
本文设计的自动分拣装置可以将不同材质的物料进行分拣,搬运。
为高校的教学与科研提供了一个系统的操作平台。
【关键词】PLC;物料分拣;传感器;1、引言在工业生产应用中成品或者半成品工件的分拣是流水作业的重要组成部份。
过去采用的人工分拣或半机械分拣方法劳动强度大、速度慢、效率低导致企业生产成本高竞争力差。
随着机械自动化水平的不断提高,自动分拣技术在物品分拣中的应用越来越广泛,已成为企业提高竞争能力的唯一选择,既减少人力资源的浪费,又减轻工人的劳动强度,还提高生产效率,大大加强产品生产的自动化。
[2]本文设计的物料自动分拣系统是一个机、电、气集合的综合体,系统的程序主要由三菱FX-2N系列PLC控制;由变频器及传感器控制输送带运行;各类传感器实现材料的检测、姿势的判别等。
在对物料自动分拣系统使用的PLC及控制技术分析的基础上,提出电气控制系统的总体方案,设计整个系统控制部分与传动部分连接,结合PLC梯形图分析了程序设计思路与主要控制功能。
2、FX系列PLC原理及应用2.1 PLC概述可编程逻辑控制器(Programmable Logic Controller,简称PLC)是专为在工业环境下应用而设计的数字运算操作电子系统,是微机技术与传统的继电接触控制技术相结合的产物,它克服了继电接触控制系统中的机械触点的接线复杂、可靠性低、功耗高、通用性和灵活性差的缺点,充分利用了微处理器的优点。
(完整版)PLC毕业设计的外文文献(及翻译)

PLC technique discussion and future developmentT.J.byersElectronic Test Equipment-principles and ApplicationsPrinceton University .AmericaAlong with the development of the ages, the technique that is nowadays is also gradually perfect, the competition plays more strong; the operation that list depends the artificial has already can't satisfied with the current manufacturing industry foreground, also can't guarantee the request of the higher quantity and high new the image of the technique business enterprise.The people see in produce practice, automate brought the tremendous convenience and the product quantities for people up of assurance, also eased the personnel's labor strength, reduce the establishment on the personnel. The target control of the hard realization in many complicated production lines, whole and excellent turn, the best decision etc, well-trained operation work, technical personnel or expert, governor but can judge and operate easily, can acquire the satisfied result. The research target of the artificial intelligence makes use of the calculator exactly to carry out, imitate these intelligences behavior, moderating the work through person's brain and calculators, with the mode that person's machine combine, for resolve the very complicated problem to look for the best path.We come in sight of the control that links after the electric appliances in various situation, that is already the that time generation past, now of after use in the mold a perhaps simple equipments of grass-roots control that the electric appliances can do for the low level only; And the PLC emergence also became the epoch-making topic, adding the vivid software control through a very and stable hardware, making the automation head for the new high tide.The PLC biggest characteristics lie in: The electrical engineering teacher already no longer electric hardware up too many calculations of cost, as long as order the importation that the button switch or the importation of the sensors order to link the PLC up can solve problem, pass to output to order the conjunction contact machine or control the start equipments of the big power after the electric appliances, but the exportation equipmentsdirect conjunction of the small power can.PLC internal containment have the CPU of the CPU, and take to have an I/ O for expand of exterior to connect a people's address and saving machine three big pieces to constitute, CPU core is from an or many is tired to add the machine to constitute, mathematics that they have the logic operation ability, and can read the procedure save the contents of the machine to drive the homologous saving machine and I/ Os to connect after pass the calculation; The I/ O add inner part is tired the input and output system of the machine and exterior link, and deposit the related data into the procedure saving machine or data saving machine; The saving machine can deposit the data that the I/ O input in the saving machine, and in work adjusting to become tired to add the machine and I/ Os to connect, saving machine separately saving machine RAM of the procedure saving machine ROM and dates, the ROM can do deposit of the data permanence in the saving machine, but RAM only for the CPU computes the temporary calculation usage of hour of buffer space.The PLC anti- interference is very and excellent, our root need not concern its service life and the work situation bad, these all problems have already no longer become the topic that we fail, but stay to our is a concern to come to internal resources of make use of the PLC to strengthen the control ability of the equipments for us, make our equipments more gentle.PLC language is not we imagine of edit collected materials the language or language of Cs to carry on weaving the distance, but the trapezoid diagram that the adoption is original after the electric appliances to control, make the electrical engineering teacher while weaving to write the procedure very easy comprehended the PLC language, and a lot of non- electricity professional also very quickly know and go deep into to the PLC.Is PLC one of the advantage above and only, this is also one part that the people comprehend more and easily, in a lot of equipments, the people have already no longer hoped to see too many control buttons, they damage not only and easily and produce the artificial error easiest, small is not a main error perhaps you can still accept; But lead even is a fatal error greatly is what we can't is tolerant of. New technique always for bringing more safe and convenient operation for us, make we a lot of problems for face on sweep but light, do you understand the HMI? Says the HMI here you basically not clear what it is, also have no interest understanding, change one inside text explains it into the touch to hold orman-machine interface you knew, it combines with the PLC to our larger space.HMI the control not only is reduced the control press button, increase the vivid of the control, more main of it is can sequence of, and at can the change data input to output the feedback with data, control in the temperature curve of imitate but also can keep the manifestation of view to come out. And can write the function help procedure through a plait to provide the help of various what lies in one's power, the one who make operate reduces the otiose error. Currently the HMI factory is also more and more, the function is also more and more strong, the price is also more and more low, and the noodles of the usage are wide more and more. The HMI foreground can say that think to be good.At a lot of situations, the list is a smooth movement that can't guarantee the equipments by the control of the single machine, but pass the information exchanges of the equipments and equipments to attain the result that we want. For example fore pack and the examination of the empress work preface, we will arrive wrapping information feedback to examine the place, and examine the information of the place to also want the feedback to packing. Pass the information share thus to make both the chain connect, becoming a total body, the match of your that thus make is more close, at each other attain to reflect the result that mutually flick.The PLC correspondence has already come more body now its value, at the PLC and correspondence between Places, can pass the communication of the information and the share of the data’s to guarantee that of the equipments moderates mutually, the result that arrive already to repair with each other. Data conversion the adoption RS232 between PLC connect to come to the transmission data, but the RS232 pick up a people and can guarantee 10 meters only of deliver the distance, if in the distance of 1000 meters we can pass the RS485 to carry on the correspondence, the longer distance can pass the MODEL only to carry on deliver.The PLC data transmission is just to be called a form to it in a piece of and continuous address that the data of the inner part delivers the other party, we, the PLC of the other party passes to read data in the watch to carry on the operation. If the data that data in the watch is a to establish generally, that is just the general data transmission, for example today of oil price rise, I want to deliver the price of the oil price to lose the oil ally on board, that is the share of the data; But take data in the watch for an instruction procedure that controls the PLC, that had the difficulty very much, for example you have to control one pedestal robot to pressthe action work that you imagine, you will draw up for it the form that a procedure combine with the data sends out to pass by.The form that information transport contain single work, the half a work and the difference of a workers .The meaning of the single work also is to say both, a can send out only, but a can receive only, for example a spy he can receive the designation of the superior only, but can't give the superior reply; A work of half is also 2 and can send out similar to accept the data, but can't send out and accept at the same time, for example when you make a phone call is to can't answer the phone, the other party also; But whole pair works is both can send out and accept the data, and can send out and accept at the same time. Be like the Internet is a typical example.The process that information transport also has synchronous and different step cent: The data line and the clock lines are synchronous when synchronous meaning lie in sending out the data, is also the data signal and the clock signals to be carry on by the CPU to send out at the same time, this needs to all want the specialized clock signal each other to carry on the transmission and connect to send, and is constrained, the characteristics of this kind of method lies in its speed very quick, but correspond work time of take up the CPU and also want to be long oppositely, at the same time the technique difficulty also very big. Its request lies in canting have an error margins in a dates deliver, otherwise the whole piece according to compare the occurrence mistake, this on the hardware is a bigger difficulty. Applied more and more extensive in some appropriative equipments, be like the appropriative medical treatment equipments, the numerical signal equipments...etc., in compare the one data deliver, its result is very good.And the different step is an application the most extensive, this receive benefit in it of technique difficulty is opposite and want to be small, at the same time not need to prepare the specialized clock signal, its characteristics to lie in, its data is partition, the long-lost send out and accept, be the CPU is too busy of time can grind to a stop sex to work, also reduced the difficulty on the hardware, the data throw to lose at the same time opposite want to be little, we can pass the examination of the data to observe whether the data that we send out has the mistake or not, be like strange accidentally the method, tired addition and eight efficacies method etc, can use to helps whether the data that we examine to send out have or not themistake occurrence, pass the feedback to carry on the discriminator.A line of transmission of the information contains a string of and combines the cent of: The usual PLC is 8 machines, certainly also having 16 machines. We can be at the time of sending out the data a send out to the other party, also can be 88 send out the data to the other party, and 8 differentiations are also the as that we say to send out the data and combine sends out the data. A speed is more and slowly, but as long as 2 or three lines can solve problem, and can use the telephone line to carry on the long range control. But combine the ocular transmission speed is very quick of, it is a string of ocular of 25600%, occupy the advantage in the short distance, the in view of the fact TTL electricity is even, being limited by the scope of one meter generally, it combine unwell used for the data transmission of the long pull, thus the cost is too expensive.Under a lot of circumstances we are total to like to adopt the string to combine the conversion chip to carry on deliver, under this kind of circumstance not need us to carry on to deposited the machine to establish too and complicatedly, but carry on the data exchanges through the data transmission instruction directly, but is not a very viable way in the correspondence, because the PLC of the other party must has been wait for your data exportation at the time of sending out the data, it can't do other works.When you are reading the book, you hear someone knock on door, you stop to start up of affair, open the door and combine to continue with the one who knock on door a dialogue, the telephone of this time rang, you signal hint to connect a telephone, after connecting the telephone through, return overdo come together knock on door to have a conversation, after dialogue complete, you continue again to see your book, this kind of circumstance we are called the interruption to it, it has the authority, also having sex of have the initiative, the PLC had such function .Its characteristics lie in us and may meet the urgently abrupt affairs in the operation process of the equipments, we want to stop to start immediately up of work, the whereabouts manages the more important affair, this kind of circumstance is we usually meet of, PLC while carry out urgent mission, total will keep the current appearance first, for example the address of the procedure, CPU of tired add the machine data etc., be like to stick down which the book that we see is when we open the door the page or simply make a mark, because we treat and would still need to continue immediately after book of see the behind.The CPU always does the affair that should do according to our will, but your mistake of give it an affair, it also would be same to do, this we must notice.The interruption is not only a, sometimes existing jointly with the hour several inside break, break off to have the preferred Class, they will carry out the interruption of the higher Class according to person's request. This kind of breaks off the medium interruption to also became to break off the set. The Class that certainly breaks off is relevant according to various resources of CPU with internal PLC; also following a heap of capacity size of also relevant fasten.The contents that break off has a lot of kinds, for example the exterior break off, correspondence in of send out and accept the interruption and settle and the clock that count break off, still have the WDT to reset the interruption etc., they enriched the CPU to respond to the category while handle various business. Speak thus perhaps you can't comprehend the internal structure and operation orders of the interruption completely also, we do a very small example to explain.Each equipment always will not forget a button, it also is at we meet the urgent circumstance use of that is nasty to stop the button. When we meet the Human body trouble and surprised circumstances we as long as press it, the machine stops all operations immediately, and wait for processing the over surprised empress recover the operation again. Nasty stop the internal I/ O of the internal CPU of the button conjunction PLC to connect up, be to press button an exterior to trigger signal for CPU, the CPU carries on to the I/ O to examine again, being to confirm to have the exterior to trigger the signal, CPU protection the spot breaks off procedure counts the machine turn the homologous exterior I/ O automatically in the procedure to go to also, be exterior interruption procedure processing complete, the procedure counts the machine to return the main procedure to continue to work. Have 1:00 can what to explain is we generally would nasty stop the button of exterior break off to rise to the tallest Class, thus guarantee the safety.When we are work a work piece, giving the PLC a signal, counting PLC inner part the machine add 1 to compute us for a day of workload, a count the machine and can solve problem in brief, certainly they also can keep the data under the condition of dropping the electricity, urging the data not to throw to lose, this is also what we hope earnestly.The PLC still has the function that the high class counts the machine, being us while accept some dates of high speed, the high speed that here say is the data of the in all aspects tiny second class, for example the bar code scanner is scanning the data continuously, calculating high-speed signal of the data processor DSP etc., we will adopt the high class to count the machine to help we carry on count. It at the PLC carries out the procedure once discover that the high class counts the machine to should of interruption, will let go of the work on the hand immediately. The trapezoid diagram procedure that passes by to weave the distance again explains the high class for us to carry out procedure to count machine would automatic performance to should of work, thus rise the Class that the high class counts the machine to high one Class.You heard too many this phrases perhaps:" crash", the meaning that is mostly is a workload of CPU to lead greatly, the internal resources shortage etc. the circumstance can't result in procedure circulate. The PLC also has the similar circumstance, there is a watchdog WDT in the inner part of PLC, we can establish time that a procedure of WDT circulate, being to appear the procedure to jump to turn the mistake in the procedure movement process or the procedure is busy, movement time of the procedure exceeds WDT constitution time, the CPU turn but the WDT reset the appearance. The procedure restarts the movement, but will not carry on the breakage to the interruption.The PLC development has already entered for network ages of correspondence from the mode of the one, and together other works control the net plank and I/ O card planks to carry on the share easily. A state software can pass all se hardwires link, more animation picture of keep the view to carries on the control, and cans pass the Internet to carry on the control in the foreign land, the blast-off that is like the absolute being boat No.5 is to adopt this kind of way to make airship go up the sky.The development of the higher layer needs our continuous effort to obtain. The PLC emergence has already affected a few persons fully, we also obtained more knowledge and precepts from the top one experience of the generation, coming to the continuous development PLC technique, push it toward higher wave tide.可编程控制器技术讨论与未来发展T.J.拜尔斯(电子测试设备原理及应用普林斯顿大学)随着时代的发展,当今的技术也日趋完善、竞争愈演愈烈;单靠人工的操作已不能满足于目前的制造业前景,也无法保证更高质量的要求和高新技术企业的形象。
PLC物料自动分拣系统PLC-automatic-sorting-system毕业论文外文文献翻译及原文

毕业设计(论文)外文文献翻译文献、资料中文题目:PLC物料自动分拣系统文献、资料英文题目:文献、资料来源:文献、资料发表(出版)日期:院(部):专业:班级:姓名:学号:指导教师:翻译日期: 2017.02.14外文翻译PLC今天PLC (programmable logical controller),可编程序逻辑控制器)面临着更为复杂的挑战。
当初,它们悄悄地取代了继电器、接触器并时不时见诸于公司主框架的报告。
而今,他们已经组成了各种单元、被赋予新的任务、使用新的语言,并面临着与各种新型控制产品竞争。
作为每年一度PLC技术最新报道,我们请教了PLC市场销售人员,制作了这个专刊。
编程语言高级PLC编程语言已经在有些方面很普及,但是最近高级编程语言已经迅速发展。
西门子的总经理兼生产部长指出:“可编程控制在被广泛的应用与于精密操作,除了梯形图逻辑以外的编程语言变得更加实用、有效和强大。
例如,用梯形图逻辑写一个三角函数公式是非常困难的。
”被接收的语言包括Boolean,控制系统流程图编制,和如公式编制语言Graphtec和与它类似的语言,并且还有增加的重要语言如C语言和BASIC语言。
过程控制中的PLCPLC还没有广泛的应用于过程控制中。
是否会一直这样下去呢?北美GE Fanuc一系列和六系列的生产企划经理Ken Jeannette说:“我觉得PLC将被用于过程控制但是对于过程控制又不是必须的。
”一些厂家十分确定PLC不会广泛用于过程控制。
Rich Ryan经理提到PLC 在食品、化学和石油等工业领域越来越多的应用。
他认为PLC适合应用于场合有两种,他说:“第一,过程控制系统的型号不适合离散控制系统,刚开始这些产品的价格非常的高。
而一个可编程控制器以它的体积小,价格低顺理成章的被应用。
第二,你必须把电路和逻辑紧密的结合起来。
例如,一组基本的控制器,连续的过程变量紧密的互相联系在一起,以至于用可编程控制器来完成一系列的逻辑胜过没有离散控制器的系统。
开题报告基于PLC控制的物料分拣系统设计1

开题报告基于PLC控制的物料分拣系统设计11。
课程名称和来源名称:基于可编程控制器控制的物料分类系统设计来源:自选题目2。
主要研究(设计)目的和意义2.1背景自动分拣系统(Automatic Sorting System)是二战后在美国和日本的物流中心首次广泛使用的自动化操作系统。
该系统现已成为发达国家大中型物流中心不可或缺的一部分。
该系统的操作过程可以简单描述如下:移动中心每天通过各种运输方式接收数百家供应商或发货人发送的数千件商品,在最短的时间内卸载这些商品,并根据商品品种、发货人、储存地点或交货地点对其进行快速准确的分类,并将这些商品运输到指定的地点(如指定的货架、加工区、交货平台等)。
)。
同时,当供应商或业主通知物流中心根据发货指令发货时,自动分拣系统在最短的时间内准确地从巨大的高层货架存储系统中找到需要发货的货物的位置,并根据需要的数量发货,根据不同的发货入口点将不同数量的货物从不同的存储位置运送到不同的理货区或发货平台进行装载和配送2.2研究自动分拣系统的意义在生产行业中起着重要的作用其可靠性、优越性、在应用领域的适用性、系统的经济效益以及成本分类系统可以灵活实现与其他物流设备的无缝连接,如自动化仓库、各种仓储站、自动收发货链、各种车辆、机器人等。
实现物资物流和物资信息流的分配和管理[3]采用本发明的分拣系统,大大降低了人工分拣和堆放物料的劳动强度,操作人员无需进行大量的报表工作和清单工作来跟踪物料,显著提高了劳动生产率。
此外,减少甚至取消诸如材料仓库人员、材料经销商和货运代理等间接劳动力的工作量进一步直接降低了运营成本。
由于分拣系统运行平稳,安全性高,同时减少了人工取料的数量,减少了对物品的损坏,从而为客户创造了更多的价值,为公司赢得了更多的信誉和商机。
2.3国外研究现状自动分拣系统(Automatic分拣系统)是二战后在美国、日本和欧洲的1199大型中型物流中心广泛使用的一种分拣系统。
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外文文献翻译毕业设计题目基于PLC的物料分拣系统设计翻译题目The Design of Material Choose SystemBased on PLC译文一:关于可编程控制器技术与未来发展随着时代的发展,当今的技术也日趋完善、竞争愈演愈烈;单靠人工的操作已不能满足于目前的制造业前景,也无法保证更高质量的要求和高新技术企业的形象。
人们在生产实践中看到,自动化给人们带来了极大的便利和产品质量上的保证,同时也减轻了人员的劳动强度,减少了人员上的编制.在许多复杂的生产过程中难以实现的目标控制、整体优化、最佳决策等,熟练的操作工、技术人员或专家、管理者却能够容易判断和操作,可以获得满意的效果.人工智能的研究目标正是利用计算机来实现、模拟这些智能行为,通过人脑与计算机协调工作,以人机结合的模式,为解决十分复杂的问题寻找最佳的途径。
我们在各种场合看到了继电器连接的控制,那已经是时代的过去,如今的继电器只能作为低端的基层控制模块或者简单的设备中使用到;而PLC的出现也成为了划时代的主题,通过极其稳定的硬件穿插灵活的软件控制,使得自动化走向了新的高潮。
一个系统化的设计PLC程序的方法可以克服传统程序生产控制系统的缺点,并且在一些工业应用总有很大的不同。
自动控制系统是状态模型用公式语言或等价的语言描述的。
公式描述对被控制的系统的行为提供一个精确的描述。
可以通过分析估计看状态模型是否达到想要的目标。
第二,为状态模型的描述提供结构描述,这个结构描述可以说明逻辑要求和如细节安全规则的限制。
第三,好的控制系统设计是对自动控制代码生成有益的——一种能够产生可执行的控制软件的能力,不同的逻辑控制器可以减少程序扫描时间和执行那个时间。
特别的,这个主题与随后的部分的是有关的。
在现代制造业中,系统是用过程和结果的革新来描述的,并且因此不得不改变系统性能以快速做出反应。
因此,一个大的挑战是提供技术以限制自动控制系统对变化需要和新机会的反应,所以,设计和操作知识可以实时的被再次利用,在工业实践中提供了一个重要的竞争面。
PLC的最大特点在于:电气工程师已不再电气的硬件上花费太多的心计,只要将按钮开关或感应器的输入点连接到PLC的输入点上就能解决问题,通过输出点连接接触器或继电器来控制大功率的启动设备,而小功率的输出设备直接连接就可以。
在很多场合,单靠单机的控制是无法保证设备的顺畅运行,而通过设备与设备的信息交流达到我们想要的效果。
比如在前包装和后工序的检测,我们就要将包装的信息反馈到检测处,而检测处的信息也要反馈到包装来。
这样通过信息共享来使得两者之间链接起来,形成一个共体,从而使的两者间的配合更加的紧密,在彼此间达到映影相挥的效果。
PLC的数据传送只是将内部的数据传送到对方的一块连续的地址中,我们把它称为一个表,对方的PLC通过读取表中的数据来进行操作。
如果表中的数据是一个一般设置的数据的话,那只是一般的数据传送,比如今天的油价上升了,我要把油价的价格传送到所有的输油机上,那就是数据的共享;而当表中的数据是一段控制PLC的指令程序,那就很有难度了,比如你要控制一台机器人来按你想象的动作工作,你会给它编制一段程序并以数据的形式发送过去。
当你在看书的时候,你听到有人敲门、你停下手上的事情、去打开门、并同敲门者对话、这个时候电话响了、你示意接个电话、在接完电话后、回过头来同敲门者继续对话、对话完毕后、你再继续看你的书,这种情况我们把它称为中断,它具有权威性,也具有优先性,PLC具备了这样的功能。
它的特点在于我们在设备的操作过程中可能会遇到紧急的突发事件,我们要立刻的停下手上的工作,去处理更重要的事情,这种情况是我们经常所遇到的,PLC在去执行紧急的任务时,总会先保存目前的状态,比如程序的地址,CPU的累加器数据等,就像我们去开门时要记下我们看的书在第几页了或者干脆作个记号,因为我们待会还要继续接着看后面的书。
CPU总是按照我们的意愿去做应该做的事情,但你错误的给它一件事情,它也会同样的去做,这一点我们必须注意。
通信对于个人自动单元是很重要的。
在过去的几年里,我们听到许多关于生产自动化协议的事情,并且许多公司已经加入大有成功希望的事业。
然而,当一个完整的生产自动化协议说明书没有及时出现时许多公司都很失望。
Larry Kotare说:“现在,生产自动化协议仍然是生产中一个发展的对象,一个说明书并不是最终的结果。
例如,虽然当新的生产自动化协议MAP3.0 版本使用之时以MAP2.1 版本为基础的产品将会被汰,但是现在人们仍然将产品用于MAP2.1版。
”由于这些原因,许多PLC厂家紧盯着MAP的最新结果。
如欧姆龙公司正在进行一个有关MAP 兼容性的项目。
但是欧姆龙生产部门总经理Frank Newborn说由于缺少一个固定的标准,欧姆龙的产品并不涉及到MAP。
由于工业PLC无论何时不可能广泛的涉及到MAP,生产厂家正在考虑专用网络。
根据Sal Probanzano说法,用户担心如果他们广泛的应用生产厂家将会收回MAP,这样将会留下一个不支持通信的交流框架。
英文原文一:PLC technique discussion and future developmentAlong with the development of the ages, the technique that is nowadays is also gradu ally perfect, the competition plays more and more strong; the operation that list depends th e artificial has already can't satisfied with the current manufacturing industry foreground, a lso can't guarantee the request of the higher quantity and high new the image of the techniq ue business enterprise.The people see in produce practice, automate brought the tremendous convenience an d the product quantities for people up of assurance, also eased the personnel's labor strengt h, reduce the establishment on the personnel. The target control of the hard realization in m any complicated production lines, whole and excellent turn, the best decision etc., well-trai ned operation work, technical personnel or expert, governor but can judge and operate easil y, can acquire the satisfied result. The research target of the artificial intelligence makes us e of the calculator exactly to carry out, imitate these intelligences behavior, moderating the work through person's brain and calculators, with the mode that person's machine combine, for resolve the very complicated problem to look for the best path.We come in sight of the control that links after the electric appliances in various situat ion, that is already the that time generationpast, now of after use in the mold a perhaps sim ple equipments of grass-roots control that the electric appliances can do for the low level o nly; And the PLC emergence also became the epoch-making topic, adding the vivid softwa re control through a very and stable hardware, making the automation head for the new hig h tide.A systematic approach to designing PLC software can overcome deficiencies in the tr aditional way of programming manufacturing control systems, and can have wide ramificat ions in several industrial applications. Automation control systems are modeled by formal l anguages or, equivalently, by state machines. Formal representations provide a high-level d escription of the behavior of the system to be controlled. State machines can be analytically evaluated as to whether or not they meet the desired goals. Secondly, a state machine descr iption provides a structured representation to convey the logical requirements and constrain ts such as detailed safety rules. Thirdly, well-defined control systems design outcomes areconducive to automatic code generation- An ability to produce control software executable on commercial distinctlogic controllers can reduce programming lead-time and labor cost. In particular, the thesis is relevant with respect to the following aspects.In modern manufacturing, systems are characterized by product andprocess innovatio n, become customer-driven and thus have to respond quickly to changing system requireme nts. A major challenge is therefore to provide enabling technologies that can economically reconfigure automation control systems in response to changing needs and new opportuniti es. Design and operational knowledge can be reused in real-time, therefore, giving a signifi cant competitive edge in industrial practice.The PLC biggest characteristics lie in: The electrical engineering teacher already no lo nger electric hardware up too many calculations of cost, as long as order the importation th at the button switch or the importation of the sensors order to link the PLC up can solve pr oblem, pass to output to order the conjunction contact machine or control the start equipme nts of the big power after the electric appliances, but the exportation equipments direct con junction of the small power can.At a lot of situations, the list is a smooth movement that can't guarantee the equipment s by the control of the single machine, but pass the information exchanges of the equipmen ts and equipments to attain the result that we want. For example fore pack and the examina tion of theempress work preface, we will arrive wrapping information feedback to examine the place, and examine the information of the place to also want the feedback to packing. Pass the information share thus to make both the chain connect, becoming a total body, the match of your that thus make is more close, at each other attain to reflect the result that mu tually flick.The PLC data transmission is just to be called a form to it in a piece of and continuous address that the data of the inner part delivers the other party, we, the PLC of the other par ty passes to read data in the watch to carry on the operation. If the data that data in the watc h is a to establish generally, that is just the general data transmission, for example today of oil price rise, I want to deliver the price of the oil price to lose the oil ally on board, that is t he share of the data; But take data in the watch for an instruction procedure that controls th e PLC, that had the difficulty very much, for example you have to control one pedestal rob ot to press the action work that you imagine, you will draw up for it the form that a proced ure combine with the data sends out to pass by.When you are reading the book, you hear someone knock on door, you stop to start up of affair, open the door and combine to continue with the one who knock on door a dialog ue, the telephone of this time rang, you signal hint to connect a telephone, after connectingthe telephone through, return overdo come together knock on door to have a conversation, after dialogue complete, you continue again to see your book, this kind of circumstance we are called the interruption to it, it has the authority, also having sex of have the initiative, t he PLC had such function .Its characteristics lie in us and may meet the urgently abrupt aff airs in the operation process of the equipments, we want to stop to start immediately up of work, the whereabouts manages the more important affair, this kind of circumstance is we usually meet of, PLC while carry out urgent mission, total will keep the current appearance first, for example the address of the procedure, CPU of tired add the machine data etc., be like to stick down which the book that we see is when we open the door the page or simply make a mark, because we treat and would still need to continue immediately after book of see the behind. The CPU always does the affair that should do according to our will, but yo ur mistake of give it an affair, it also would be same to do, this we must notice.Communications are vital to an individual automation cell and to the automated factor y as a whole. We've heard a lot about MAP in the last few years, and a lot of companies ha ve jumped on the band wagon. Many,however were disappointed when a fully-defined and completed MAP specification didn’t appear immediately. Says Larry Kumara:” Right now, MAP is still a moving target for the manufacturers specification that is not final. Presently, for example, people are introducing products to meet the MAP 2.1standard.Yet 2.1-based products will be obsolete when the new standard for MAP, 3.0is introduced.”B ecause of this, many PLC vendors are holding off on full MAP implementations. O mron, for example, has an ongoingMAP-compatibility program, but Frank Newborn, vice president of Omron’s Industria l Division, reports that because of the lack of a firm definition, Omron's PLCs don't yet talk to MAP.Since it’s unlikely that an individual PLC would talk to broadband MAP anyway, ma kers are concentrating n proprietary networks. According to Sal Provanzano, users fear that if they do get on board and vendors withdraw from MAP, they all pulse width modulation control system be the ones left holding a communications structure that’s not supported.译文二:气动运输动力及PLC控制PLC控制系统一般采取易于理解和掌握的梯形图语言及面向工业控制的简单指令,形象直观,是基于现场总线技术、完全开放,采用先进的软硬件技术。