基于单片机的智能水表的设计外文翻译、中英对照、英汉互译.doc

1、本科毕业设计（外文翻译）题 目 基于单片机智能水表的设计 学生姓名 专业班级 电子科学与技术3班 学 号 指导教师(职称) 郑州科技学院电气工程学院二一三年五月外文翻译外文翻译原文：Based on single chip microcomputer intelligent water meter design一、Single-chip microcomputer1.Singlechip application Singlechip application domain Singlechip widely applies in the instrument measuring applianc

2、e, the domestic electric appliances, the medical equipment, domain and so on aerospace, special purpose equipment intellectualized management and process control, may divide the following several categories approximately: On intelligent instrument measuring appliance application Singlechip has the v

3、olume small, the power loss low, the control function strong, the expansion is nimble, merit and so on microminiaturization and easy to operate, widely applies in the instrument measuring appliance, the union different type sensor, may realize such as physical quantity the and so on voltage, power,

4、frequency, humidity, temperature, current capacity, speed, thickness, angle, length, degree of hardness, element, pressure survey. Uses singlechip control to cause the instrument measuring appliance digitization, the intellectualization, the microminiaturization, also the function compares uses the

5、electron or the digital circuit is more formidable. For example precise measurement equipment (dynamometer, oscilloscope, each kind of analyzer). . In industry control application May constitute the various formats control system, the data acquisition system with singlechip. For example the factory

6、assembly line intellectualized management, the elevator intellectualization control, each kind of alarm system, constitutes two cascade control systems with the computer networking and so on. .In domestic electric appliances application May say like this that, the present domestic electric appliance

7、s basically have all used singlechip control, praised, the washer, the electric refrigerator, the air conditioner, the color television, other acoustic video frequency equipments from the electricity food, again to the electronic weighting equipment, all kinds of, omnipresent. .In computer network a

8、nd correspondence domain application Of the modern singlechip has the correspondence connection generally, may very conveniently and the computer carries on the data communication,for provided the extremely good physical conditions application in between the computer network and the communication fa

9、cility, the present communication facility basically has all realized singlechip intelligence control, from the handset, the telephone, the small program controlled switch, the building automatic correspondence ringing system, the train wireless correspondence, again the mobile phone which everywher

10、e to the routine work in, the colony mobile communication, radio intercom and so on. .Singlechip in medical equipment domain application Singlechip quite is also widespread inmedical equipment use, for example medical life-support machine, each kind of analyzer, , ultrasound diagnosis equipment and

11、hospital bed ringing system and so on. In addition, singlechip in the industry and commerce, the finance, the scientific research, the education, domain and so on national defense aerospace all has the extremely widespread use. 2.Singlechip development tendencyNow may say singlechip was all flowers

12、blooms together, the time which hundred school of thought contended, in the world each big chip manufacture company has all promoted own singlechip, from 8, 16 to 32, innumerable, had everything expected to find, has compatibly with the mainstream C51 series, also had not not compatibly, but they un

13、ique, became mutually supplementarily, provided the broad world for singlechip application. Looks over singlechip developing process, may indicate singlechip development tendency, has approximately: Low power loss CMOS The MCS-51 series 8,031 promotes when the power loss reaches 630mW, but the prese

14、nt singlechip all about 100mW, along with more and more is generally low to singlechip power loss request, the present each singlechip manufacturer basic has all used CMOS (complementary metal oxide semiconductor craft). Looked like 80C51 to use HMOS (namely high density metal oxide compound semicon

15、ductor craft) and CHMOS (supplementary high density metal oxide compound semiconductor craft). CMOS although power loss low, but because its physical characteristic decides its working speed insufficiently high, but CHMOS then had has been high speed and the low power loss characteristic, these char

16、acteristics, suited in are requesting the low power loss likely battery power supply the application situation. Therefore this kind of craft will be the main way which the next section of times singlechip will develop. Miniature monolithic Now the conventional singlechip all is generally the central

17、 processor (CPU), the random access data storage (RAM), the read-only program memory (ROM), parallel and the serial communication connection, the interruption system, the timing circuit, the clock electric circuit integration on together the sole chip, the enlargement mode singlechip integrated like

18、 A/The D switch, PMW (pulse-duration modulation electric circuit), WDT (watch-dog), some singlechips (liquid crystal) actuate LCD the electric circuit all to integrate on the sole chip, such singlechip contains unit electric circuit more, the function is more formidable. Even singlechip merchant als

19、o may act according to the user requiremnet the body custom make, makes has oneself characteristic singlechip chip. In addition, present product universal demand volume small, weight light, this requests singlechip strong and the power loss is low besides the function, but also requests its volume t

20、o have to be small. Present many singlechips all have the many kinds of seals form, SMD (superficial seal) more and more receives welcome, to enable the system which constitutes by singlechip towards the microminiaturized direction to develop.Mainstream and multi- varieties coexistence Now although

21、singlechip variety is many, unique, but still as the core singlechip occupies the mainstream take 80C51, the compatible its structure and the command system have PHILIPS Corporation the product, the ATMEL Corporations product and the Chinese Taiwans Winbond series singlechip. Therefore C8051 was the

22、 core singlechip occupied the half of the country. But Microchip Corporations PIC simplified the set of instructions (RISC) also to have the strong development tendency, the Chinese Taiwans HOLTEK Corporation recent years singlechip output grows day by day, if the low price nature superior superiori

23、ty, occupied a certain market minute volume. In addition also has MOTOROLA Corporation the product, the Japaneseseveral big companies special-purpose singlechips. In the certain time, this kind of situation will be able to continue, will not have the monopoly aspect which some singlechip unified, wi

24、ll walk will be depends on for existence supplementarily, will complement one another, the communal development path.二、intelligent water meter designLong-term since, our country residence water meter are arranged on the indoor kitchen or toilet water concentration, the water more and scattered resid

25、ences, sometimes even a indoor set more than one meter. In recent years, water meter is arranged on the indoor and caused many problems cause the attention of people increasingly: Home meter reading disturbs people s normal life and may lead to residential burglary, privacy and safety not guaranteed

26、: management of meter reading meter reading is not easy and large labor intensity: individual user steals water management departments to prevent and punish and so on. Because of these problems, water production has become an inevitable choice. Therefore, the newly revised national standard ( code f

27、or design of building water supply GBJ15-88article 2.5.8: residential building should be installed in household water meter, household water meter or household water meter digital display should be located outdoors. Meter households generally have the following ways: Household water meter concentrat

28、ed in the roof ( water supply ) or the underlying space ( water supply ). This mode is often used for multi-stormy residential. In general a unit provided with a ladder of water meter water meter well ( box ), household water pipe along the interior tube or building wall into the indoor. The utility

29、 model has the advantages of convenient reading; reading, low labor intensity of workers, can avoid users water behavior. Disadvantages are: material consumption, head loss of pipeline, occupying larger space pipeline well, such as a wall is easy to affect the appearance of the building, the user br

30、anches not easy maintenance. Meter is arranged on the stair landing platform. Vertical water supply pipe is arranged on the platform, each provided with a water tank; the water meter box embedded platform resting on both sides of the wall. The utility model has the advantages of: user branches short

31、, saving material, low head loss of pipeline, the shortcoming is: water dispersed settings, meter reading personnel of great labor intensity; usually indoor fire hydrant box is installed on a platform, so that the already crowded rest platform more cramped, traffic inconvenience to the residents.Eac

32、h layer is Meter centralized meter room, household water meter on the wall. The utility model has the advantages of the same with B, the disadvantages are: household pipeline must follow the public walkway under floor into interior and corridors, ceiling requirements. Will be the traditional ordinar

33、y mechanical water meter changes for telemetering water meter or IC card intelligent water meter. Remote water meter accurate calculation without reading, this form must be a deposit a certain amount of water, will recharge after insertion of the IC card water meter reading can be water. Because the

34、 remote water meter and IC card table relatively expensive and technically still exist certain problems, hence in practice has not been widely applied. Above a few kinds of water-meter, each has its advantages and disadvantages, concrete in practical engineering design in which way, by the design st

35、aff according to residential properties, grades and local industry management department requirement.1.2water supply pipe arrangement and laying. At present, to build the house in one hutch two defend very general already, even with some houses one hutch three defend one hutch four defend, kitchen,

36、toilet, the balcony, and each water using point locations are more dispersed. User branches to water points along the interior floor pipeline such as hanging, inevitable requirement set indoor ceiling, wall should also have the anti-condensation measures to bring inconvenience, household decoration,

37、 after all, not all tenants wanted to ceiling. ( the building water supply and drainage design specification ) GB15 2000(manuscript ) as specified in article 3.6.18, water supply pipe should be laid in the floor ( ground ) surface of the leveling layer or along the wall laying pipe groove, laying th

38、e leveling layer or the tube groove water supplying pipe outside diameter is less than 25mm. In fact, if connected to two or more than two water points, water supply branch pipe are connected together in series, the pipe diameter is more than 25mm. Therefore, in order to meet the specification requi

39、rements, water supply branch door after access water separator, a water segregator dark kitchen or bathroom wall, through the diversion device connected to each water using point branch pipe diameter can be controlled under 25mm. But it should be noted: a leveling layer water supply pipe after compl

40、etion of construction, should be in the position to do the obvious markers, lest the household decoration, destruction of water supply pipeline.Skyscraper water gauge the open air set up following severa kinds of forms: Whether 1.adopt far it pass by water gauge Change the ordinary water gauge into

41、and pass the water gauge far, is joined the water gauge and data gathering machine by a signal line, And then reach intelligence to manage( the computer). Its merit lies in saving a large amount of people Strength comes to check meter, the data are accurate, the shortcoming is that the fabrication c

42、ost is high. Whether adopt magnetic stripe card of by water gauge Users buy the electronic card of the running water Company in advance , then insert it in the storing device of the water gauge, Card amount of money deduct automatically on the water, this way user need to prepay the water rate, The

43、price of the water gauge is relatively high. adopt it set up at the open air water gauge not ordinary 1)The water gauge is set up in the stair have a rest in the alcove of the platform. Household watersupply to prop up and manage and enter the kitchen, bathroom after the water gauge is measured. Way

44、 this realize water gauge produce room set up, equivalence low project have , supply water and set up and in charge of and set up with water gauge office results in aesthetic problems in stair. It suitable for the South warm district kitchen, bathroom assign close to the houses of positions of stair

45、case. 2)The water gauge concentrates on being set up among the water gauges( meter box). Person who give when supplying water, set up water gauge in ground floor( meter box) on falling, every household watersupply to prop up and is in charge of applying having in the pipeline well, Southern area can

46、 overcast horn place lay along the outer wall in building too; Person who give when supplying water, can set up water gauge in roof( meter box) under upgoing. This way increases and supplies water to prop up In charge of and lay length, pipeline lay and influence building to be beautiful along outer

47、 wall. Water gauge produce way choice that family assign, must combine house kitchen, bathroom plane assign characteristic and concrete request of developer, Carry on to several feasibility scheme the above economic technology fix after comparing. Property well-managed medium-to-high grade commodity

48、 apartment of housing district, can adopt and pass the water gauge far , It is that the water gauge will use the developing direction in the future; Estate management perfect medium- to-high grade commodity apartment of housing district, can adopt magnetic stripe card water gauge( Company have this

49、kind district of business can design in running water) Or concentrate on setting up it among the water gauges( case); Southern area unit type house can set up rest platform office in stair with ordinary water gauge, In order to reduce the fabrication cost. 10外文翻译基于单片机的智能水表的设计一、单片机1.单片机的应用领域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：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