本科生毕业设计（论文）专业外文翻译原文：Structure and function of the MCS-51 series
译文：51系列单片机的功能和结构
指导教师：马锐职称：高级工程师
学生姓名：张明明学号： 1002120342
专业：电气工程及其自动化
院（系）：机电工程学院
2014年3月20
Structure and function of the MCS-51 series
Structure and function of the MCS-51 series one-chip computer MCS-51 is a name of a piece of one-chip computer series which Intel Company produces. This company introduced 8 top-grade one-chip computers of MCS-51 series in 1980 after introducing 8 one-chip computers of MCS-48 series in 1976. It belong to a lot of kinds this line of one-chip computer the chips have, such as 8051, 8031, 8751, 80C51BH, 80C31BH,etc., their basic composition, basic performance and instruction system are all the same. 8051 daily representatives- 51 serial one-chip computers.
A one-chip computer system is made up of several following parts: (1) One microprocessor of 8 (CPU). ( 2) At slice data memory RAM (128B/256B),it use not depositing not can reading /data that write, such as result not middle of operation, final result and data wanted to show, etc. ( 3) Procedure memory ROM/EPROM (4KB/8K
B ), is used to preserve the procedure , some initial data and form in slice. But does not take ROM/EPROM within some one-chip computers, such as 8031, 8032, 80C, etc... (4) Four 8 run side by side I/O interface P0 four P3, each mouth can use as introduction, may use as exporting too. ( 5) Two timer / counter, each timer / counter may set up and count in the way, used to count to the external incident, can set up into a timing way too, and can according to count or result of timing realize the control of the computer. (6) Five cut off cutting off the control system of the source. ( 7) One all depleting serial I/O mouth of UART (universal asynchronous receiver/transmitter (UART) ), is it realize one-chip computer or one-chip computer and serial communication of computer to use for. (8) Stretch oscillator and clock produce circuit, quartz crystal finely tune electric capacity need outer. Allow oscillation frequency as 12 megahits now at most. Every the above-mentioned part was joined through the inside data bus .Among them, CPU is a core of the one-chip computer, it is the control of the computer and command centre, made up of such parts as arithmetic unit and controller , etc.. The arithmetic unit can carry on 8 persons of arithmetic operation and unit ALU of logic operation while including one, the 1 storing device temporalities of 8, storing device 2 temporarily, 8's accumulation device ACC, register B and procedure state register PSW, etc. Person who accumulate
ACC count by 2 input ends entered of checking etc. temporarily as one operation often, come from person who store 1 operation is it is it make operation to go on to count temporarily , operation result and loopback ACC with another one. In addition, ACC is often regarded as the transfer station of data transmission on 8051 inside. The same as general microprocessor, it is the busiest register. Help remembering that agreeing with an expresses in the order. The controller includes the procedure counter, the order is deposited, the order deciphers the oscillator and timing circuit, etc. The procedure counter is made up of counter of 8 for two, amounts to 16. It is a byte address counter of the procedure in fact, the content is the next IA that will carried out in PC. The content which changes it can change the direction that the procedure carries out. Shake the circuit in 8051 one-chip computers, only need outer quartz crystal and frequency to finely tune the electric capacity, its frequency range is its 12MHZ of 1.2MHZ. This pulse signal, as 8051 basic beats of working, namely the minimum unit of time. 8051 is the same as other computers, the work in harmony under the control of the basic beat, just like an orchestra according to the beat play that is commanded.
There are ROM (procedure memory , can only read ) and RAM in 8051 slices (data memory, can is it can write ) two to read, they have each independent memory address space, dispose way to be the same with general memory of computer. Procedure 8051 memory and 8751 slice procedure memory capacity 4KB, address begin from 0000H, used for preserving the procedure and form constant. Data 8051- 8751 8031 of memory data memory 128B, address false 00FH, use for middle result to deposit operation, the data is stored temporarily and the data are buffered etc... In RAM of this 128B, there is unit of 32 bêtises that can be appointed as the job register, this and general microprocessor is different, 8051 slice RAM and job register rank one formation the same to arrange the location. It is not very the same that the memory of MCS-51 series one-chip computer and general computer disposes the way in addition. General computer for first address space, ROM and RAM can arrange in different space within the range of this address at will, namely the addresses of ROM and RAM, with distributing different address space in a formation. While visiting the memory, corresponding and only an address Memory unit, can ROM, it can be RAM
too, and by visiting the order similarly. This kind of memory structure is called the structure of Princeton. 8051 memories are divided into procedure memory space and data memory space on the physics structure, there are four memory spaces in all: The procedure stores in one and data memory space outside data memory and one in procedure memory space and one outside one, the structure forms of this kind of procedure device and data memory separated from data memory, called Harvard structure. But use the angle from users, 8051 memory address space is divided into three kinds: (1) in the slice, arranges blocks of FFFFH, 0000H of location, in unison outside the slice (use 16 addresses). (2) The data memory address space outside one of 64KB, the address is arranged from 0000H 64KB FFFFH (with 16 addresses) took to the location. (3) Data memory address space of 256B (use 8 addresses). Three above-mentioned memory space addresses overlap, for distinguishing and designing the order symbol of different data transmission in the instruction system of 8051: CPU visit slice, ROM order spend MOVC , visit block RAM order uses MOVX outside the slice, RAM order uses MOV to visit in slice.
8051 one-chip computer have four 8 walk abreast I/O port; call P0, P1, P2 and P3. Each port is 8 accurate two-way mouths, accounts for 32 pins altogether. Every one I/O line can be used as introduction and exported independently. Each port includes a latch (namely special function register); one exports the driver and an introduction buffer. Make data can latch when outputting, data can buffer when making introduction , but four function of pass way these self-same. Expand among the system of memory outside having slice, four ports these may serve as accurate two-way mouth of I/O in common use. Expand among the system of memory outside having slice, P2 mouth see high 8 address off; P0 mouth is a two-way bus, send the introduction of 8 low addresses and data / export in timesharing
Output grade, P3 of mouth, P1 of P1, connect with inside have load resistance of drawing, every one of they can drive 4 Model LS TTL load to output. As while inputting the mouth, any TTL or NMOS circuit can drive P1 of 8051 one-chip computers as P3 mouth in a normal way. Because draw resistance on output grade of them have, can open a way collector too or drain-source resistance is it urge to open a way, do not need to have the resistance of drawing utterly. Mouths are all accurate
two-way mouths too. When the conduct is input, must write the corresponding port latch with 1 first. As to 80C51 one-chip computer, port can only offer mill ampere of output electric currents, is it output mouth go when urging one ordinary basing of transistor to regard as, should contact a resistance among the port and transistor base, in order to the electricity while restraining the high level from exporting P1~P3 Being restored to the throne is the operation of initializing of an one-chip computer. Its main function is to turn PC into 0000H initially, make the one-chip computer begin to hold the conduct procedure from unit 0000H. Except that the ones that enter the system are initialized normally, as because procedure operate it make mistakes or operate there aren't mistake, in order to extricate oneself from a predicament , need to be pressed and restored to the throne the key restarting too. It is an input end which is restored to the throne the signal in 8051 China RST pin. Restore to the throne signal high level effective, should sustain 24 shake cycle (namely 2 machine cycles) the above its effective times. If 6 of frequency of utilization brilliant to shake, restore to the throne signal duration should exceed 4 delicate to finish restoring to the throne and operating. Produce the logic picture of circuit which is restored to the throne the signal: Restore to the throne the circuit and include two parts outside in the chip entirely. Outside that circuit produces to restore to the throne signal (RST) hand over to Schmitt's trigger, restore to the throne circuit sample to output, Schmitt of trigger constantly in each S5P2, machine of cycle in having one more, then just got and restored to the throne and operated the necessary signal in idly. Restore to the throne resistance of circuit generally, electric capacity parameter suitable for 6 brilliant to shake, can is it restore to the throne signal high level duration greater than 2 machine cycles to guarantee. Being restored to the throne in the circuit is simple, its function is very important. Pieces of one-chip computer system could normal running, should first check it can restore to the throne not succeeding. Checking and can pop one's head and monitor the pin with the oscillograph tentatively, push and is restored to the throne the key, the wave form that observes and has enough range is exported (instantaneous), can also through is it restore to the throne circuit group holding value carry on the experiment to change.
At present, MCU to infiltrate all areas of our lives, which is almost difficult
to find traces of the field without SCM. Missile navigation equipment, aircraft, all types of instrument control, computer network communications and data transmission, industrial automation, real-time process control and data processing, extensive use of various smart IC card, civilian luxury car security system, video recorder, camera, fully automatic washing machine control, and program-controlled toys, electronic pet, etc., which are inseparable from the microcontroller. Not to mention the area of robot control, intelligent instruments, and medical equipment was. Therefore, the MCU learning, development and application of the large number of computer applications and intelligent control of the scientists, engineers.
SCM is widely used in instruments and meters, household appliances, medical equipment, aerospace, specialized equipment, intelligent management and process control fields, roughly divided into the following several areas:
（1）In the application of Intelligent Instruments
SCM has a small size, low power consumption, controlling function, expansion flexibility, the advantages of miniaturization and ease of use, widely used instrument, combining different types of sensors can be realized Zhou voltage, power, frequency, humidity, temperature, flow, speed, thickness, angle, length, hardness, elemental, physical pressure measurement. SCM makes use of digital instruments, intelligence, miniaturization, and functionality than electronic or digital circuits more powerful. Such as precision measuring equipment (power meter, oscilloscope, various analytical instrument).
（2）In the industrial control application
With the MCU can constitute a variety of control systems, data acquisition system. Such as factory assembly line of intelligent control, all kinds of alarm systems, and computer networks constitute a secondary control system.
（3）In the Appliance of Household appliances
It can be said that the appliances are basically using SCM, praise from the electric rice, washing machines, refrigerators, air conditioners, color TV, and other audio video equipment, to the electronic weighing equipment, varied, and omnipresent.
（4）In the field of computer networks and communications applications
MCU general with modern communication interface, can be easy with the computer data communication, networking and communications in computer applications between devices had excellent material conditions, are basically all communication equipment to achieve a controlled by MCU from mobile phone, telephone, mini-program-controlled switchboards, building automated communications call system, train radio communication, to the daily work can be seen everywhere in the mobile phones, trunked mobile radio, walkie-talkies, etc..
（5）Microcomputer in the field of medical device applications
MCU in the use of medical devices is also quite extensive, such as medical respirator, the various analyzers, monitors, ultrasound diagnostic equipment and hospital beds, etc. Call system.
（6）In a variety of major appliances in the modular applications
Designed to achieve some special single specific function to be modular in a variety of circuit applications, without requiring the use of personnel to understand its internal structure. If music integrated single chip, seemingly simple function, miniature electronic chip in the net (the principle is different from the tape machine), you need a computer similar to the principle of the complex. Such as: music signal to digital form stored in memory (like ROM), read by the microcontroller, and analog music into electrical signals (similar to the sound card).
In large circuits, modular applications that greatly reduce the volume, simplifies the circuit and reduce the damage, error rate, but also easy to replace.
（7）Microcontroller in the application field of automotive equipment SCM in automotive electronics is widely used, such as a vehicle engine controller, CAN bus-based Intelligent Electronic Control Engine, GPS navigation system, abs anti-lock braking system, brake system, etc.. In addition, the MCU in business, finance, research, education, and national defense, aerospace and other fields has a very wide range of applications.
译文
51系列单片机的功能和结构
结构和功能的监控监-51系列之一--计算机芯片监控监-51名是一幅一个电脑晶片,英特尔公司生产系列. 这家公司推出8级一个计算机芯片监控监-51系列之后,于1980年8引入一个计算机芯片监控监,于1976年48系列.。它属于这一类型很多行一个芯片的电脑芯片都如8051、8031、8751、80c51bh,80c31bh 等,其基本组成、性能和基本教学制度,都是一样的. 8051每日代表-51系列之一--电脑晶片有一个芯片的计算机系统是由以下几个方面: (1)18微处理器(CPU). (2)在切片数据存储羊(128B/256B),使用可以不读书不写数据如因经营不中,最后结果要和数据显示等. (3)存储器存储程序/可擦写可编程只读存储器(4KB/8KB),用于保存程序和数据,初步形成片. 但并不存储器/可擦写可编程只读存储器在一些人的电脑芯片,如8031、8032、80c等. （4)经营的84并肩一/四OP0P3接口,每口可以用作介绍,也可以用作输出. (5)两个定时/柜台,每个计时器/柜台可设立和计算的方法,用来计算的外部事件,可以建立成一个时间的方式也可以和根据计算结果或时间实现控制的计算(六)五切断源头上控制系统.
(七)各一序I/O口UART(异步接收世界/发送(UART)),它是实现一个计算机芯片和一个计算机芯片和通讯系列电脑上使用. (8)强、时钟振荡器电路生产、水晶石英细调需要外部电容. 为使振动频率目前最强. 上述地区内的数据是通过加入单片机.
其中,CPU的核心是一个电脑芯片,它是计算机和指挥控制中心等部分组成,运算器和控制等. 运算器的可携带8人计算a经营单位的经营逻辑,其中,1temporarilies存储装置8、暂时贮存器2、8的行政协调会累积装置、B、注册登记程序国有PSW等. 累积计200人,行政协调委员会结束对进入检查. 暂时运作往往是来自一店经营者,这是经营下去,使计暂时经营成果和行政协调会. 此外,行政协调会经常被视为转运站,在8051年的数据传输. 一般微处理器一样,是繁忙登记. 帮助大家,表示了赞同的命令. 控制程序包括柜台命令详解,振荡器电路和时间等. 程序相当于16. 这是一个字节地址位的程序,其实,内容是未来IA将进行PC. 修改的内容,它可以改变方向,进行程序. 在8051电路动摇一个电脑芯片、石英晶体外,只需要相当频繁调整电容,其范围是12mhz的频率1.2mhz. 这一脉冲信号,作为8051年工作的基本节拍,即单位时间内的最低.
8051年是计算机一样,在和谐的工作基本控制打,就像打了一个乐团,按照发挥,指挥. 有存储器(程序存储器,只能读),8051年在羊片(存储数据,是可以写出)二读,他们每个独立存储空间处理,处理方式是一样的,一般的电脑记忆. 8051年和8751年拨款程序存储程序存贮器4kb,从0000h地址,用于保存程序和方式不变. 数据8051-87518031128b记忆存储数据,00fh假地址,用于存放操作结果中,暂时储存数据和资料等无人。在这种羊128b,有32个单位字节可以出任就业登记,这是与一般不同的微处理器、8051切片和就业登记成立一个级别相同的地点安排. 这是很不相同的记忆监控监-51系列之一--计算机芯片,除了一般电脑的方式处置. 一般电脑先向空间、存储器和RAM,可安排在不同的空间范围内解决这一意愿,即存储器的地址和RAM,地址分配不同的空间形成. 同时来访的记忆,相应的存储器,只有一个地址,可以存储,也可以撞击,并以同样的访问. 这种记忆结构称为普林斯顿结构. 8051记忆分为程序存储空间和数据存储空间的物理结构,有四个存储空间:我们的程序储存在一个数据存储空间之外的数据存储和一个程序存储空间、外一、结构形式的这种程序装置和数据存储与形式的数据存储,称为哈佛结构. 但从用户的角度,讨论8051年的记忆空间分为三类:(1)在时代安排Fifth座,0000h地点、从容外片(地址用十六). (二)处理数据存储空间之外64kb之一,被安排从地址0000hFfffh64kb(地址16),地点太. 三)处理数据存储空间256b(地址8使用). 上述三个存储空间地址重叠,鉴别设计,象征不同的数据传输的语言系统8051:CPU访问片,以存储器,阻止访问命令Ra用途外用一张旅游片。
8051年1-48芯片计算机与我走/澳港,要求P0、P1、P2和P3. 每个港口8准确双向口,共占32别针. 每一个我/O线可作为引进和输出独立. 每个港口有门闩(即登记特殊功能)、驾驶人、出口实行缓冲. 可当门闩使outputting数据,数据可以缓冲时推出,但这些四个功能自我同一. 在扩大对外开放具有时代记忆系统,这四个港口可准确双向口1/O共同使用。在扩大对外开放具有时代记忆系统,高8P2口地址见客. P0口是一个双向车采用8送数据低地址/出口Timesharing 在8051年的巡回一个计算机芯片和四个1/O港口很巧妙的设计. 熟悉我/港澳逻辑电路,不仅有利于正确、合理地使用港口、激励周边逻辑电路设计的一个计算机芯片有所提高. 负载能力和接口港口有一定的要求,因为产量等,P0和P1口的最终产量、P3口的结构,在不同的年级,所以,负载能力和接口要求其门南辕北辙相处. 不同于其他P0口口,其产量即将年级抵抗.。在使用它的
嘴巴,用共同使用,是生产事故等级亮起电路,它是利用NMOS呼吁采取抵制外,应同时输入,走出失败. 当被用作介绍,应该写"1"的门闩头. 每一个有能驾驶8P0口输出模式LSTTL载荷. P1口是一个正确的双向口也作为我/海外广泛使用. P0口不同产量的电路,请联系电力负荷就在有阻力. 事实上,反抗是两种影响,同时负责操作:1配量负责,定期阻力. 另一种可能是导致这两个国家与接近,使总经理改变阻值近似为零或一组值两种形势十分沉重. 0时,大约是反抗,可以寄以很高的速度; 如果阻值很大,P1口,以妨碍国家引进高. P1口高产量的电力平时,它是利用电流负载提供庇护,以此抵制和不必回答. 在这里介绍的是用作码头,必须写1到相应的门闩头也使操作结束。相对约20,000ohms因负载阻力,因为在现场40,000ohms,不会产生影响的数据,输入. P2口的结构有些类似于P0口有开关. 这是促使口腔类似,但有些不是嘴巴大转换控制P1. P3口人的多功能港口,嘴也越来越多,P1比"、"3和4缓冲门". 这两个部分,使她除了精确的双向功能与P1口仅,也可以使用第二功能每针. "、"一门三转功能实际上它决定将产量数据信号门闩第二产出功能. 在担任W=1时,问到生产信号; 作为在Q=1时,信号线可以生产W. 节目时,它是第一个功能,但仍是第二个功能不用软件P3口提前成立. 这不是硬件是在自动有两个功能outputted当CPU进行社会主义和寻求地点(所在地或字节)访P3口/不是在持久排队,有在硬件门闩促使=1.THE经营原则P3口类似于P1口.
生产级的P3口,P1,P1,内有连接负载阻力划,每个人可以带动4产出模型LSTTL载荷. 而作为输入口,任何NMOS电路可驱动TTL或P1的8051一个电脑芯片P3口的正常发展. 由于产量等做出抵抗的人,也可以公开方式收藏或流失的根源就是反抗的方式,要求公开,不须具备抵抗绘画. 别人都准确双向口也. 当行为投入,要写出1首相应的港口与门闩. 以80c51一个计算机芯片,只能提供港口毫安的电流电产出,它是生产口去要求一个普通的计算是将晶体管、接触的阻力应该在港口及半导体基地同时为了抑制高电力输出P1~P3级是恢复王位是一个着手运作一个计算机芯片. 其主要功能是将电脑变成0000h开始,使一个开始进行计算机芯片进行程序0000h单位. 除了那些进入正常initialized系统,因为它的程序操作失误或操作失误不多,为了摆脱困境,必须按国家和恢复王位,恢复太重要了. 这是一项投入恢复王位,结束了在8051年中国信息表寄. 恢复王位高有效信号,应保持24震撼周期(机器周期,2)有效时间段. 6如果使用频率前去辉煌,恢复王位信号完成期限不得超过4微妙的王位,恢复营业. 逻辑电路生
产情况,恢复王位的信号:
恢复王位的电路两部分组成,包括外部的芯片完全. 外界产生电路恢复王位信号(表)交给史密特的启动,恢复王位样品电路产量,史密特触发不断每一s5p2、机器周期有一次,光有与恢复王位和经营所需insidly信号. 恢复王位抵抗一般线路、电容参数适合6精彩震撼,是否能恢复王位高信号机会大于2周期保证. 正在恢复王位是简单的电路,其作用是非常重要的.一张电脑芯片系统可正常运作,应先检查一下,才能恢复王位没有成功. 检测可以流行和监督寄与初步示波器,并把恢复王位的关键,波的形式,并认为有足够的距离输出(瞬间),也就是通过它来恢复电路值进行实现改变。
目前单片机渗透到我们生活的各个领域，几乎很难找到哪个领域没有单片机的踪迹。导弹的导航装置，飞机上各种仪表的控制，计算机的网络通讯与数据传输，工业自动化过程的实时控制和数据处理，广泛使用的各种智能IC卡，民用豪华轿车的安全保障系统，录像机、摄像机、全自动洗衣机的控制，以及程控玩具、电子宠物等等，这些都离不开单片机。更不用说自动控制领域的机器人、智能仪表、医疗器械了。因此，单片机的学习、开发与应用将造就一批计算机应用与智能化控制的科学家、工程师。
单片机广泛应用于仪器仪表、家用电器、医用设备、航空航天、专用设备的智能化管理及过程控制等领域，大致可分如下几个范畴：
（1）在智能仪器仪表上的应用
单片机具有体积小、功耗低、控制功能强、扩展灵活、微型化和使用方便等优点，广泛应用于仪器仪表中，结合不同类型的传感器，可实现诸如电压、功率、频率、湿度、温度、流量、速度、厚度、角度、长度、硬度、元素、压力等物理量的测量。采用单片机控制使得仪器仪表数字化、智能化、微型化，且功能比起采用电子或数字电路更加强大。例如精密的测量设备（功率计，示波器，各种分析仪）。
（2）在工业控制中的应用
用单片机可以构成形式多样的控制系统、数据采集系统。例如工厂流水线的智能化管、电梯智能化控制、各种报警系统，与计算机联网构成二级控制系统等。（3）在家用电器中的应用
可以这样说，现在的家用电器基本上都采用了单片机控制，从电饭褒、洗衣机、电冰箱、空调机、彩电、其他音响视频器材、再到电子秤量设备，五花八门，无所不在。
（4）在计算机网络和通信领域中的应用
现代的单片机普遍具备通信接口，可以很方便地与计算机进行数据通信，为在计算机网络和通信设备间的应用提供了极好的物质条件，现在的通信设备基本上都实现了单片机智能控制，从手机，电话机、小型程控交换机、楼宇自动通信呼叫系统、列车无线通信、再到日常工作中随处可见的移动电话，集群移动通信，无线电对讲机等。
（5）单片机在医用设备领域中的应用
单片机在医用设备中的用途亦相当广泛，例如医用呼吸机，各种分析仪，监护仪，超声诊断设备及病床呼叫系统等等。
（6）在各种大型电器中的模块化应用
某些专用单片机设计用于实现特定功能，从而在各种电路中进行模块化应用，而不要求使用人员了解其内部结构。如音乐集成单片机，看似简单的功能，微缩在纯电子芯片中（有别于磁带机的原理），就需要复杂的类似于计算机的原理。如：音乐信号以数字的形式存于存储器中（类似于ROM），由微控制器读出，转化为模拟音乐电信号（类似于声卡）。
在大型电路中，这种模块化应用极大地缩小了体积，简化了电路，降低了损坏、错误率，也方便于更换。
（7）单片机在汽车设备领域中的应用
单片机在汽车电子中的应用非常广泛，例如汽车中的发动机控制器，基于CAN 总线的汽车发动机智能电子控制器，GPS导航系统，abs防抱死系统，制动系统等等。
此外，单片机在工商，金融，科研、教育，国防航空航天等领域都有着十分广泛的用途。
英文参考文献标准格式:论文参考文献格式规范 也可以在标点.之后加上一个空格，但一定要保证所有的项目空格个数一致一、参考文献的类型 参考文献（即引文出处）的类型以单字母方式标识，具体如下： [M]--专著,著作 [C]--论文集(一般指会议发表的论文续集，及一些专题论文集，如《***大学研究生学术论文集》 [N]-- 报纸文章 [J]--期刊文章：发表在期刊上的论文，尽管有时我们看到的是从网上下载的（如知网），但它也是发表在期刊上的，你看到的电子期刊仅是其电子版 [D]--学位论文：不区分硕士还是博士论文 [R]--报告：一般在标题中会有"关于****的报告"字样 [S]-- 标准 [P]--专利 [A]--文章：很少用，主要是不属于以上类型的文章 [Z]--对于不属于上述的文献类型，可用字母"Z"标识，但这种情况非常少见 常用的电子文献及载体类型标识： [DB/OL] --联机网上数据(database online) [DB/MT] --磁带数据库(database on magnetic tape) [M/CD] --光盘图书(monograph on CDROM) [CP/DK] --磁盘软件(computer program on disk)
[J/OL] --网上期刊(serial online) [EB/OL] --网上电子公告(electronic bulletin board online) 很显然，标识的就是该资源的英文缩写，/前面表示类型，/后面表示资源的载体，如OL表示在线资源 二、参考文献的格式及举例 1．期刊类 【格式】[序号]作者.篇名[J].刊名,出版年份,卷号(期号)起止页码. 【举例】 [1] 周融，任志国，杨尚雷，厉星星.对新形势下毕业设计管理工作的思考与实践[J].电气电子教学学报，2003(6):107-109. [2] 夏鲁惠.高等学校毕业设计(论文)教学情况调研报告[J].高等理科教育,2004(1):46-52. [3] Heider, E.R.& D.C.Oliver. The structure of color space in naming and memory of two languages [J]. Foreign Language Teaching and Research, 1999, (3): 62 67. 2．专著类 【格式】[序号]作者.书名[M].出版地:出版社,出版年份:起止页码. 【举例】 [4] 刘国钧,王连成.图书馆史研究[M].北京:高等教育出版社,1979:15-18,31. [5] Gill, R. Mastering English Literature [M]. London: Macmillan, 1985: 42-45. 3．报纸类 【格式】[序号]作者.篇名[N].报纸名,出版日期(版次). 【举例】 [6] 李大伦.经济全球化的重要性[N]. 光明日报，1998-12-27(3).
Inventory management Inventory Control On the so-called "inventory control", many people will interpret it as a "storage management", which is actually a big distortion. The traditional narrow view, mainly for warehouse inventory control of materials for inventory, data processing, storage, distribution, etc., through the implementation of anti-corrosion, temperature and humidity control means, to make the custody of the physical inventory to maintain optimum purposes. This is just a form of inventory control, or can be defined as the physical inventory control. How, then, from a broad perspective to understand inventory control? Inventory control should be related to the company's financial and operational objectives, in particular operating cash flow by optimizing the entire demand and supply chain management processes (DSCM), a reasonable set of ERP control strategy, and supported by appropriate information processing tools, tools to achieved in ensuring the timely delivery of the premise, as far as possible to reduce inventory levels, reducing inventory and obsolescence, the risk of devaluation. In this sense, the physical inventory control to achieve financial goals is just a means to control the entire inventory or just a necessary part; from the perspective of organizational functions, physical inventory control, warehouse management is mainly the responsibility of The broad inventory control is the demand and supply chain management, and the whole company's responsibility. Why until now many people's understanding of inventory control, limited physical inventory control? The following two reasons can not be ignored: First, our enterprises do not attach importance to inventory control. Especially those who benefit relatively good business, as long as there is money on the few people to consider the problem of inventory turnover. Inventory control is simply interpreted as warehouse management, unless the time to spend money, it may have been to see the inventory problem, and see the results are often very simple procurement to buy more, or did not do warehouse departments . Second, ERP misleading. Invoicing software is simple audacity to call it ERP, companies on their so-called ERP can reduce the number of inventory, inventory control, seems to rely on their small software can get. Even as SAP, BAAN ERP world, the field of
论文参考文献规范格式详解 一、文献格式的快速引用 （一）参考文献的类型 参考文献的类型（即引文出处）以单字母方式标识在文献名后并以方括号括起，具体类型标识如下： M ——专著、普通图书 C ——论文集 N ——报纸文章 J ——期刊文章 D ——学位论文 R ——研究报告 S ——标准 P ——专利 对于不属于上述的文献类型，采用字母“Z”标识。 （二）参考文献的格式及实例 1、专著类 【格式】[序号]作者.书名[M].出版地：出版社，出版年份：起止页码. 【举例】 [1] 张志建.严复思想研究[M]. 桂林：广西师范大学出版社，1989. [2] 马克思恩格斯全集：第1卷[M]. 北京：人民出版社，1956. [3] [英]蔼理士.性心理学[M]. 潘光旦译注.北京：商务印书馆，1997. [4] 葛家澍，林志军.现代西方财务会计理论[M].厦门：厦门大学出版社，2001：42. [5] Gill, R. Mastering English Literature [M]. London: Macmillan, 1985: 42-45. 2、论文集 【格式】[序号]作者.篇名[C].出版地：出版者，出版年份：起始页码. 【举例】 [1] 伍蠡甫.西方文论选[C]. 上海：上海译文出版社，1979：12-17. [2] Spivak,G. Victory in Limbo[C]. Urbana: University of Illinois Press, 1988, pp.271-313. [3] Almarza, G.G. Teacher Learning in Language Teaching [C]. New York: Cambridge University Press. 1996. pp.50-78. 3、报纸类 【格式】[序号]作者.篇名[N].报纸名，出版日期（版次）. 【举例】 [6] 李大伦.经济全球化的重要性[N]. 光明日报，1998-12-27(3). [7] French, W. Between Silences: A Voice from China[N]. Atlantic Weekly, 1987-8-15(33). 4、期刊类 【格式】[序号]作者.篇名[J].刊名，出版年份，卷号（期号）：起止页码. 【举例】 [1] 王海粟.浅议会计信息披露模式[J].财政研究，2004,21(1)：56-58. [2] 夏鲁惠.高等学校毕业论文教学情况调研报告[J].高等理科教育，2004(1):46-52. [3] 郭英德.元明文学史观散论[J]. 北京师范大学学报（社会科学版），1995（3）. [4] Heider, E.R.& D.C.Oliver. The structure of color space in naming and memory of two languages [J]. Foreign Language Teaching and Research, 1999, (3): 62–67.
中文参考文献格式 参考文献（即引文出处）的类型以单字母方式标识： M——专著，C——论文集，N——报纸文章，J——期刊文章，D——学位论文，R——报告，S——标准，P——专利；对于不属于上述的文献类型，采用字母“Z”标识。 参考文献一律置于文末。其格式为： （一）专著 示例 [1] 张志建.严复思想研究[M]. 桂林：广西师范大学出版社，1989. [2] 马克思恩格斯全集：第1卷[M]. 北京：人民出版社，1956. [3] [英]蔼理士.性心理学[M]. 潘光旦译注.北京：商务印书馆，1997. （二）论文集 示例 [1] 伍蠡甫.西方文论选[C]. 上海：上海译文出版社，1979. [2] 别林斯基.论俄国中篇小说和果戈里君的中篇小说[A]. 伍蠡甫.西方文论选：下册[C]. 上海：上海译文出版社，1979. 凡引专著的页码，加圆括号置于文中序号之后。 （三）报纸文章 示例 [1] 李大伦.经济全球化的重要性[N]. 光明日报，1998-12-27，（3） （四）期刊文章 示例 [1] 郭英德.元明文学史观散论[J]. 北京师范大学学报（社会科学版），1995（3）. （五）学位论文 示例 [1] 刘伟.汉字不同视觉识别方式的理论和实证研究[D]. 北京：北京师范大学心理系，1998. （六）报告 示例 [1] 白秀水，刘敢，任保平. 西安金融、人才、技术三大要素市场培育与发展研究[R]. 西安：陕西师范大学西北经济发展研究中心，1998. （七）、对论文正文中某一特定内容的进一步解释或补充说明性的注释，置于本页地脚，前面用圈码标识。 参考文献的类型 根据GB3469-83《文献类型与文献载体代码》规定，以单字母标识： M——专著（含古籍中的史、志论著） C——论文集 N——报纸文章 J——期刊文章 D——学位论文 R——研究报告 S——标准 P——专利 A——专著、论文集中的析出文献 Z——其他未说明的文献类型 电子文献类型以双字母作为标识： DB——数据库 CP——计算机程序 EB——电子公告
软件专业毕业论文外文文献中英文翻译 Object landscapes and lifetimes Tech nically, OOP is just about abstract data typing, in herita nee, and polymorphism, but other issues can be at least as importa nt. The rema in der of this sect ion will cover these issues. One of the most importa nt factors is the way objects are created and destroyed. Where is the data for an object and how is the lifetime of the object con trolled? There are differe nt philosophies at work here. C++ takes the approach that con trol of efficie ncy is the most importa nt issue, so it gives the programmer a choice. For maximum run-time speed, the storage and lifetime can be determined while the program is being written, by placing the objects on the stack (these are sometimes called automatic or scoped variables) or in the static storage area. This places a priority on the speed of storage allocatio n and release, and con trol of these can be very valuable in some situati ons. However, you sacrifice flexibility because you must know the exact qua ntity, lifetime, and type of objects while you're writing the program. If you are trying to solve a more general problem such as computer-aided desig n, warehouse man ageme nt, or air-traffic con trol, this is too restrictive. The sec ond approach is to create objects dyn amically in a pool of memory called the heap. In this approach, you don't know un til run-time how many objects you n eed, what their lifetime is, or what their exact type is. Those are determined at the spur of the moment while the program is runnin g. If you n eed a new object, you simply make it on the heap at the point that you n eed it. Because the storage is man aged dyn amically, at run-time, the amount of time required to allocate storage on the heap is sig ni fica ntly Ion ger tha n the time to create storage on the stack. (Creat ing storage on the stack is ofte n a si ngle assembly in structio n to move the stack poin ter dow n, and ano ther to move it back up.) The dyn amic approach makes the gen erally logical assumpti on that objects tend to be complicated, so the extra overhead of finding storage and releas ing that storage will not have an importa nt impact on the creati on of an object .In additi on, the greater flexibility is esse ntial to solve the gen eral program ming problem. Java uses the sec ond approach, exclusive". Every time you want to create an object, you use the new keyword to build a dyn amic in sta nee of that object. There's ano ther issue, however, and that's the lifetime of an object. With Ian guages that allow objects to be created on the stack, the compiler determines how long the object lasts and can automatically destroy it. However, if you create it on the heap the compiler has no kno wledge of its lifetime. In a Ianguage like C++, you must determine programmatically when to destroy the
根据GB3469-83《文献类型与文献载体代码》规定，以单字母标识： M——专著（含古籍中的史、志论著） C——论文集 N——报纸文章 J——期刊文章 D——学位论文 R——研究报告 S——标准 P——专利 A——专著、论文集中的析出文献 Z——其他未说明的文献类型 电子文献类型以双字母作为标识： DB——数据库 CP——计算机程序 EB——电子公告 非纸张型载体电子文献，在参考文献标识中同时标明其载体类型： DB/OL——联机网上的数据库 DB/MT——磁带数据库 M/CD——光盘图书 CP/DK——磁盘软件 J/OL——网上期刊 EB/OL——网上电子公告 一、参考文献著录格式 1 、期刊作者．题名〔J〕．刊名，出版年，卷(期)∶起止页码 2、专著作者．书名〔M〕．版本(第一版不著录)．出版地∶出版者，出版年∶起止页码 3、论文集作者．题名〔C〕．编者．论文集名，出版地∶出版者，出版年∶起止页码 4 、学位论文作者．题名〔D〕．保存地点．保存单位．年份 5 、专利文献题名〔P〕．国别．专利文献种类．专利号．出版日期 6、标准编号．标准名称〔S〕 7、报纸作者．题名〔N〕．报纸名．出版日期(版次) 8 、报告作者．题名〔R〕．保存地点．年份 9 、电子文献作者．题名〔电子文献及载体类型标识〕．文献出处，日期 二、文献类型及其标识 1、根据GB3469 规定，各类常用文献标识如下： ①期刊〔J〕 ②专著〔M〕 ③论文集〔C〕 ④学位论文〔D〕 ⑤专利〔P〕 ⑥标准〔S〕 ⑦报纸〔N〕 ⑧技术报告〔R〕 2、电子文献载体类型用双字母标识，具体如下： ①磁带〔MT〕
②磁盘〔DK〕 ③光盘〔CD〕 ④联机网络〔OL〕 3、电子文献载体类型的参考文献类型标识方法为：〔文献类型标识/载体类型标识〕。例如： ①联机网上数据库〔DB/OL〕 ②磁带数据库〔DB/MT〕 ③光盘图书〔M/CD〕 ④磁盘软件〔CP/DK〕 ⑤网上期刊〔J/OL〕 ⑥网上电子公告〔EB/OL〕 三、举例 1、期刊论文 〔1〕周庆荣，张泽廷，朱美文，等．固体溶质在含夹带剂超临界流体中的溶解度〔J〕．化工学报，1995(3)：317—323 〔2〕Dobbs J M, Wong J M. Modification of supercritical fluid phasebehavior using polor coselvent〔J〕. Ind Eng Chem Res, 1987,26:56 〔3〕刘仲能，金文清.合成医药中间体4-甲基咪唑的研究〔J〕.精细化工，2002(2)：103-105 〔4〕Mesquita A C, Mori M N, Vieira J M, et al ．Vinyl acetate polymerization by ionizing radiation 〔J〕．Radiation Physics and Chemistry,2002, 63:465 2、专著 〔1〕蒋挺大．亮聚糖〔M〕．北京：化学工业出版社，2001．127 〔2〕Kortun G．Reflectance Spectroscopy〔M〕．New York: Spring-Verlag,1969 3、论文集 〔1〕郭宏，王熊，刘宗林．膜分离技术在大豆分离蛋白生产中综合利用的研究〔C〕．//余立新．第三届全国膜和膜过程学术报告会议论文集．北京：高教出版社，1999．421-425 〔2〕Eiben A E, vander Hauw J K．Solving 3-SAT with adaptive genetic algorithms 〔C〕．//Proc 4th IEEE Conf Evolutionary Computation．Piscataway: IEEE Press, 1997．81-86 4、学位论文 〔1〕陈金梅．氟石膏生产早强快硬水泥的试验研究（D）．西安：西安建筑科学大学，2000 〔 2 〕Chrisstoffels L A J ．Carrier-facilitated transport as a mechanistic tool in supramolecular chemistry〔D〕．The Netherland：Twente University．1988 5、专利文献 〔1〕Hasegawa, Toshiyuki, Yoshida,et al．Paper Coating composition〔P〕．EP 0634524．1995-01-18 〔 2 〕仲前昌夫，佐藤寿昭．感光性树脂〔P 〕．日本，特开平09-26667．1997-01-28 〔3〕Yamaguchi K, Hayashi A．Plant growth promotor and productionthereof 〔P〕．Jpn, Jp1290606．1999-11-22 〔4〕厦门大学．二烷氨基乙醇羧酸酯的制备方法〔P〕．中国发明专利，CN1073429．1993-06-23 6、技术标准文献 〔1〕ISO 1210-1982，塑料——小试样接触火焰法测定塑料燃烧性〔S〕 〔2〕GB 2410-80，透明塑料透光率及雾度实验方法〔S〕 7、报纸 〔1〕陈志平．减灾设计研究新动态〔N〕．科技日报，1997-12-12(5) 8、报告 〔1〕中国机械工程学会．密相气力输送技术〔R〕．北京：1996
外文原文 Introduction to Java autor：Martin Ngobye. source：Computing Static Slice for Java Programs Java is designed to meet the challenges of application development in the context of heterogeneous, network-wide distributed environments. Paramount among these challenges is secure delivery of applications that consume the minimum of system resources, can run on any hardware and software platform, and can be extended dynamically. Java originated as part of a research project to develop advanced software for a wide variety of network devices and embedded systems. The goal was to develop a small, reliable, portable, distributed, real-time operating platform. When the project started, C++ was the language of choice. But over time the difficulties encountered with C++ grew to the point where the problems could best be addressed by creating an entirely new language platform. Design and architecture decisions drew from a variety of languages such as Eiffel, SmallTalk, Objective C, and Cedar/Mesa. The result is a language platform that has proven ideal for developing secure, distributed, network based end-user applications in environments ranging from network-embedded devices to the World-Wide Web and the desktop. The design requirements of Java are driven by the nature of the computing environments in which software must be deployed. The massive growth of the Internet and the World-Wide Web leads us to a completely new way of looking at development and distribution of software. To live in the world of electronic commerce and distribution, Java must enable the development of secure, high performance, and highly robust applications on multiple platforms in heterogeneous, distributed networks. Operating on multiple platforms in heterogeneous networks invalidates the traditional schemes of binary distribution, release, upgrade, patch, and so on. To survive in this jungle, Java must be architecture neutral, portable, and dynamically adaptable. The Java system that emerged to meet these needs is simple, so it can be easily programmed by most developers; familiar, so that current developers can easily learn
参考文献规范格式 参考文献类型文献类型标志 普通图书会议论文报纸文章期刊文章学位论文报告标准专利汇编参考工具其他M C N J D R S P G K z 1.期刊：著者．题名．刊名[J]．出版年，卷（期）∶起止页码 2.专著：著者．书名[M]．版本（第一版不录）．出版地∶出版者，出 版年∶起止页码 3.论文集：著者．题名．编者．论文集名[C]．出版地∶出版者，出版年∶起止页码 4.学位论文：著者．题名[D]．保存地点．保存单位．年份 5.专利：题名[P]．国别．专利文献种类．专利号．出版日期 6.技术标准：编号．标准名称[S] 7.报纸：著者．题名[N]．报纸名．出版日期（版次） 8.科技报告：著者．题名[R]．保存地点．年份 9.电子文献：著者．题名[电子文献类型标识/载体类型标识]．文献出处（出版者或可获得网址），发表或更新日期/引用日期（任选） 10.专著、论文集中的析出文献：论文著者．论文题名[A]．论文集编 者（任选）. 论文集题名[C]．出版地：出版者，出版年∶起止页码 11.其他未说明的文献类型：著者．题名[Z]．出版地∶出版者，出版 年∶起止页码 【外文文献】引文及参考文献中的论文排序方式和中文文献基本相同； 书名及刊名用斜体字，期刊文章题名用双引号；是否列出文献类型标识号 及著作页码（论文必须列出首尾页码）可任选；出版年份一律列于句尾或 页码之前（不用年份排序法）。外文文献一定要用外文原文表述（也可在 原文题名之后的括号内附上中文译文），切忌仅用中文表达外文原义。 一、参考文献的类型 参考文献（即引文出处）的类型以单字母方式标识，具体如下： M——专著C——论文集N——报纸文章 J——期刊文章D——学位论文R——报告 对于不属于上述的文献类型，采用字母“Z” 标识。 对于英文参考文献，还应注意以下两点： ①作者姓名采用“姓在前名在后”原则，具体格式是：姓，名字的首字母. 如：Malcolm Richard Cowley 应为：Cowley, M.R.，如果有两位作者，第一位作者 方式不变，&之后第二位作者名字的首字母放在前面，姓放在后面，如：Frank Norris 与Irving Gordon应为：Norris, F. & I.Gordon.； ②书名、报刊名使用斜体字，如：Mastering English Literature，English Weekly。 二、参考文献的格式及举例
Advantages of Managed Code Microsoft intermediate language shares with Java byte code the idea that it is a low-level language witha simple syntax , which can be very quickly translated intonative machine code. Having this well-defined universal syntax for code has significant advantages. Platform independence First, it means that the same file containing byte code instructions can be placed on any platform; atruntime the final stage of compilation can then be easily accomplished so that the code will run on thatparticular platform. In other words, by compiling to IL we obtain platform independence for .NET, inmuch the same way as compiling to Java byte code gives Java platform independence. Performance improvement IL is actually a bit more ambitious than Java bytecode. IL is always Just-In-Time compiled (known as JIT), whereas Java byte code was ofteninterpreted. One of the disadvantages of Java was that, on execution, the process of translating from Javabyte code to native executable resulted in a loss of performance. Instead of compiling the entire application in one go (which could lead to a slow start-up time), the JITcompiler simply compiles each portion of code as it is called (just-in-time). When code has been compiled.once, the resultant native executable is stored until the application exits, so that it does not need to berecompiled the next time that portion of code is run. Microsoft argues that this process is more efficientthan compiling the entire application code at the start, because of the likelihood that large portions of anyapplication code will not actually be executed in any given run. Using the JIT compiler, such code willnever be compiled.
参考文献规范格式 一、参考文献的类型 参考文献（即引文出处）的类型以单字母方式标识，具体如下： M——专著C——论文集N——报纸文章 J——期刊文章D——学位论文R——报告 对于不属于上述的文献类型，采用字母―Z‖标识。 对于英文参考文献，还应注意以下两点： ①作者姓名采用―姓在前名在后‖原则，具体格式是：姓，名字的首字母. 如：Malcolm Richard Cowley 应为：Cowley, M.R.，如果有两位作者，第一位作者方式不变，&之后第二位作者名字的首字母放在前面，姓放在后面，如：Frank Norris 与Irving Gordon应为：Norris, F. & I.Gordon.； ②书名、报刊名使用斜体字，如：Mastering English Literature，English Weekly。 二、参考文献的格式及举例 1.期刊类 【格式】[序号]作者.篇名[J].刊名，出版年份，卷号（期号）：起止页码. 【举例】 [1] 王海粟.浅议会计信息披露模式[J].财政研究，2004,21(1)：56-58. [2] 夏鲁惠.高等学校毕业论文教学情况调研报告[J].高等理科教育，2004(1):46-52. [3] Heider, E.R.& D.C.Oliver. The structure of color space in naming and memory of two languages [J]. Foreign Language Teaching and Research, 1999, (3): 62 – 67. 2.专著类 【格式】[序号]作者.书名[M].出版地：出版社，出版年份：起止页码. 【举例】[4] 葛家澍，林志军.现代西方财务会计理论[M].厦门：厦门大学出版社，2001：42. [5] Gill, R. Mastering English Literature [M]. London: Macmillan, 1985: 42-45. 3.报纸类 【格式】[序号]作者.篇名[N].报纸名，出版日期（版次）. 【举例】 [6] 李大伦.经济全球化的重要性[N]. 光明日报，1998-12-27(3). [7] French, W. Between Silences: A V oice from China[N]. Atlantic Weekly, 1987-8-15(33). 4.论文集 【格式】[序号]作者.篇名[C].出版地：出版者，出版年份：起始页码. 【举例】 [8] 伍蠡甫.西方文论选[C]. 上海：上海译文出版社，1979：12-17. [9] Spivak,G. ―Can the Subaltern Speak?‖[A]. In C.Nelson & L. Grossberg(eds.). Victory in Limbo: Imigism [C]. Urbana: University of Illinois Press, 1988, pp.271-313. [10] Almarza, G.G. Student foreign language teacher’s knowledge growth [A]. In D.Freeman and J.C.Richards (eds.). Teacher Learning in Language Teaching [C]. New York: Cambridge University Press. 1996. pp.50-78. 5.学位论文 【格式】[序号]作者.篇名[D].出版地：保存者，出版年份：起始页码. 【举例】
JIU JIANG UNIVERSITY 中英文文献翻译 题目RFID射频识别技术概述院系信息科学与技术学院专业计算机科学与技术 姓名武晓杰 班级学号A121238 二Ｏ一五年十二月
RFID basic principle What is the RFID RFID is the abbreviation for Radio Frequency Identification, called electronics label . What is the RFID technology RFID recognition is a non-contact automatic identification technology, rf signal through its automatic target recognition and access to relevant data, identify work without manual intervention, it can work in various environments. RFID technology can identify high-speed moving objects and can identify multiple tags, the operation is fast and convenient. Accenture laboratory's chief scientist sir alex ferguson feels RFID is a breakthrough technology: "first, can identify a very specific objects, rather like the code that can identify class objects; second, the use of rf, can read data through external materials, and bar code must rely on laser to read information; third, can also read on to multiple objects, and bar code can only read one by one. In addition, store of information is also very big." What is the basic component of RFID The most basic RFID system consists of three parts: ·Tag:Tag consists of components and chips, each Tag has only electronic coding, adhere to the object for identifiering target; ·Reader:read (sometimes also can write) label information equipment,it can be designed for portable or fixed; ·Antenna:Transmit radio frequency signals between in the label and reader. The basic principle of RFID technology is what The basic principle of RFID technology is not complex:Label into the field, Receive radio frequency signals from reader collision, with all the energy stored in a chip of the product information （passive tag, there is no source label or labels ）, Or actively to