防盜報警系統(tǒng)英文資料

1、Structure and function of the MCS-51 series one-chip computer 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

2、 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.An one-chip computer system is made up of several

3、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/8KB ), is used to preserve the p

4、rocedure , some initial data and form in slice. But does not take ROM/EPROM within some one-chip computers, such as 8031, 8032, 80C51, 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 / counte

5、r 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 duplexing serial I/O mouth of UA

6、RT (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

7、 megahertas 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

8、persons of arithmetic operation and unit ALU of logic operation while including one, the 1 storing device temporarilies 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 ch

9、ecking 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 sa

10、me as general microprocessor, it is the busiest register. Help remembering that agreeing with a expresses in the order. The controller includes the procedure counter, the order is deposited, the order decipher, the oscillator and timing circuit, etc. The procedure counter is made up of counter of 8

11、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 an

12、d 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 accor

13、ding 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 875

14、1 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 are stored temporarily and the data are buffered etc. In RAM

15、 of this 128B, there is unit of 32 bytes 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 genera

16、l 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, correspond

17、ing 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

18、 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 form data memory, called Harvard structure. But use the angle from users, 8051 memory a

19、ddress space is divided into three kinds: (1) In the slice, arrange 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 ) too to the location. (3) D

20、ata 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 outsid

21、e 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

22、 latch (namely special function register ), one exports the driver and a introduction buffer . Make data can latch when outputting, data can buffer when making introduction, but four function of passway these self-same. Expand among the system of memory outside having slice, four port these may serv

23、e 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.The circuit of 8051 one-chip computers and four I/O ports is

24、 very ingenious in design. Familiar with I/O port logical circuit, not only help to use ports correctly and rationally, and will inspire to designing the peripheral logical circuit of one-chip computer to some extent. Load ability and interface of port have certain requirement, because output grade,

25、 P0 of mouth and P1 end output, P3 of mouth grade different at structure, so, the load ability and interface of its door demand to have nothing in common with each other. P0 mouth is different from other mouths, its output grade draws the resistance supremly. When using it as the mouth in common use

26、 to use, output grade is it leak circuit to turn on, is it is it urge NMOS draw the resistance on taking to be outer with it while inputting to go out to fail. When being used as introduction, should write "1" to a latch first. Every one with P0 mouth can drive 8 Model LS TTL load to expor

27、t. P1 mouth is an accurate two-way mouth too, used as I/O in common use. Different from P0 mouth output of circuit its, draw load resistance link with power on inside have. In fact, the resistance is that two effects are in charge of FET and together: One FET is in charge of load, its resistance is

28、regular. Another one can is it lead to work with close at two state, make its President resistance value change approximate 0 or group value heavy two situation very. When it is 0 that the resistance is approximate , can draw the pin to the high level fast ; When resistance value is very large, P1 m

29、outh, in order to hinder the introduction state high. Output as P1 mouth high electricity at ordinary times, can is it draw electric current load to offer outwards, draw the resistance on needn't answer and thenning. Here when the port is used as introduction, must write into 1 to the correspond

30、ing latch first too, make FET end. Relatively about 20,000 ohms because of the load resistance in scene and because 40,000 ohms, will not exert an influence on the data that are input. The structure of P2 some mouth is similar to P0 mouth, there are MUX switches. Is it similar to mouth partly to urg

31、e, but mouth large a conversion controls some than P1. P3 mouth one multi-functional port, mouth getting many than P1 it have "and" 3 door and 4 buffer". Two part these, make her besides accurate two-way function with P1 mouth just, can also use the second function of every pin, "

32、;and" door 3 function one switch in fact, it determines to be to output data of latch to output second signal of function. Act as W =At 1 o'clock, output Q end signal; Act as Q =At 1 o'clock, can output W line signal. At the time of programming, it is that the first function is still th

33、e second function but needn't have software that set up P3 mouth in advance. It hardware not inside is the automatic to have two function outputted when CPU carries on SFR and seeks the location (the location or the byte ) to visit to P3 mouth /at not lasting lining, there are inside hardware la

34、tch Qs =1.The operation principle of P3 mouth is similar to P1 mouth.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-ch

35、ip 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 outerly. Mouths are all accurate two-way mouths too. When the conduct is inp

36、ut, must write the corresponding port latch with 1 first. As to 80C51 one-chip computer, port can only offer milliampere 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 o

37、rder to the electricity while restraining the high level from exporting P1P3 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. Ex

38、cept 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 r

39、estored 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

40、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 produce to restore to the throne signal (RST) hand ov

41、er 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 insidly. Restore to the throne resistance of circuit generally, e

42、lectric 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

43、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 throu

44、gh is it restore to the throne circuit group holding value carry on the experiment to change.Community and family composition of the anti-theft alarm systemArea residents to buy and in addition to community living facilities, the quality of housing concern for the safety of the community and concern

45、ed about the environment. Traditional residential security fences, walls and protective facilities both simple damage the overall image of the community, we can not totally effective to prevent criminals forced open the door, and locked the iron gate and barrier in the event of fires, earthquak

46、es and other emergencies, so that people can hardly escape. Thus the modernization of community prevention, intelligence, security Fangjie residents of the property of each family has become necessary to solve the problems. Intelligent Security Products and precisely the problem.Road safety first li

47、ne of defense: the perimeter alarm system to prevent pose to guard against the wall and turned into the communities surrounding the illegal invaders. Active sensors using infrared or cable on the injector. Road Safety second line of defense: a monitoring system by the community, the community a

48、ccess channel, and the main vehicles, and the personnel and facilities to focus on monitoring and management. Community Alarm System with perimeter protection system and on-site records to monitor and improve the efficiency of the police response.The third line of defense security: security patrol f

49、rom a management system, through residential areas on the residential areas of security personnel suspicious persons, incidents supervision. Patrol electronic systems to ensure that security personnel patrolling in place to achieve the strict management of district property. The fourth line of

50、defense Road safety: from networking-floor寓a visual Talkback System can be Xianduorenyuan shut stairs, and prevent foreign staff four-string.Fifth Road safety line: the family a burglar alarm system, which is part of a security system Tongxinluo most important aspect is the last link. When a thief&#

51、39;s unlawful invasion tenants such as home or a gas leak, fire, emergency and other emergency incidents elderly, in the households through the installation of electronic detectors in the automatic alarm, Chajing centre will be in the tens of police intelligence information, This immediately sent se

52、curity or ambulance personnel rushed to the scene to deal with tenants.Family of a burglar alarm systemDistrict security system as the last and most important line of defense, home burglar alarm system is automatic use of anti-theft electronic devices, unattended, through electronic and infrared tec

53、hnology to detect various types of magnetic switch judged illegal act of aggression or a variety of gas leaking through the control box speakers or Jingding police at the scene, and police information will be shared through the telephone network to transmit my alarm centre or owners. At the same tim

54、e, someone at home in case of an emergency, but also through a variety of wired and wireless emergency button or keyboard to the district centre interconnection information sent emergency calls.Alarm Host Judge came to receive various detector alarm signal to the receiver after the alarm signal

55、 can be pre-set by the way the police report. If activated sound and light alarm, automatic dialling good set multiple alarm calls, if the police and district centres networking signal that can be transmitted to the police district centre. Alarm mainframe with a remote control, remote console can co

56、ntrol.Infrared security detectorsDigital signal using microcomputer technology, high stability of detector, from innovative design. With temperature compensation, anti-white, anti-electromagnetic interference, and to eliminate false alarms many factors. When the intruder through the infrared detecto

57、rs, infrared detector alarm console immediately sent a signal, the police report was host.中文翻譯：MCS - 51系列單片機具有一個單芯片電腦的結(jié)構(gòu)和功能，它是英特爾公司生產(chǎn)的系列產(chǎn)品的名稱。這家公司在1976年推出后，引進(jìn)8位單芯片的MCS - 48系列計算機后于1980年推出的8位的MCS - 51系列單芯片計算機。諸如此類的單芯片電腦有很多種，如8051，8031，8751，80C51BH，80C31BH等，其基本組成，基本性能和指令系統(tǒng)都是相同的。 8051是51系列單芯片電腦的代表。 一個單芯

58、片的計算機系統(tǒng)由以下幾個部分組成：（1）一個8位的微處理器（CPU）。（2）片內(nèi)數(shù)據(jù)存儲器RAM（128B/256B），它只讀/寫數(shù)據(jù)，如結(jié)果不在操作過程中，最終結(jié)果要顯示數(shù)據(jù)（3）程序存儲器ROM/ EPROM（4KB/8KB），是用來保存程序，一些初步的數(shù)據(jù)和切片的形式。但一些單芯片電腦沒有考慮ROM / EPROM，如8031，8032，80C51等等。（4）4個8路運行的I / O接口，P0，P1,P2,P3，每口可以用作入口，也可以用作出口。 （5）兩個定時/計數(shù)器，每個定時/計數(shù)器可設(shè)置和計數(shù)的方式，用來計數(shù)外部事件，可以設(shè)置成定時方式也可以根據(jù)計算結(jié)果或定時控制實現(xiàn)計算機。 （6

59、）5個中斷 （7）一個全雙工串行的I / UART（通用異步接收器I口/發(fā)送器（UART），它是實現(xiàn)單芯片電腦或單芯片計算機和計算機的串行通信使用。 （8）振蕩器和時鐘產(chǎn)生電路，需要考慮石英晶體微調(diào)能力。允許振蕩頻率為12MHz，每一個上述的部分都是通過內(nèi)部數(shù)據(jù)總線連接。其中CPU是一個芯片計算機的核心，它是計算機的指揮中心，是由算術(shù)單元和控制器等部分組成。算術(shù)單元可以進(jìn)行8位算術(shù)運算和邏輯運算， ALU單元是其中一種運算器，1 8個存儲設(shè)備，暫存設(shè)備的積累設(shè)備進(jìn)行協(xié)調(diào)，程序狀態(tài)寄存器PSW積累了2個輸入端的計數(shù)等檢查暫時作為一個操作往往由人來操作誰儲存1輸入的是它使操作去上暫時計數(shù)，另有一個

60、操作的結(jié)果，回環(huán)協(xié)調(diào)。此外，協(xié)調(diào)往往是作為對8051內(nèi)的數(shù)據(jù)傳輸轉(zhuǎn)運站考慮。作為一般的微處理器，它是最繁忙的，幫助記住和同意與其的順序表示。該控制器包括程序計數(shù)器，解密的順序。振蕩器和定時電路等的程序計數(shù)器是一個由8個計數(shù)器為2，總計 16位。這是一個字節(jié)的地址，其實程序計數(shù)器，是將在個人電腦內(nèi)進(jìn)行。從而改變它的內(nèi)容可以改變方向的程序進(jìn)行。在8051的單芯片電腦中的電路，只需要外部石英晶體和頻率微調(diào)電容，其頻率范圍為1.2MHz的其12MHz的。這種脈沖信號，作為8051的工作，即單位時間的最低基本節(jié)奏。 8051是其他電腦一樣，在拍控制的基本工作在和諧，就像一個管弦樂隊，根據(jù)擊敗發(fā)揮是指揮。    有光盤（程序存儲器，只能讀?。⒃?051