外文資料翻譯利用多重單片集成電路的液位監(jiān)測(cè)儀

1、附錄c：外文資料翻譯uses the multi-monolithic integrated circuits fluid position monitoring meteruses the monolithic integrated circuit design fluid position monitoring meter is the very general procedure. if must survey the fluid position has many groups (above 16 groups), each group request can roll demonst

2、rates in 1 year each class, every day, each months input output total quantity (on 1st 3 classes), normal or the accident power cut data does not lose, man-machine interaction ability striving to excel (must establish suitable quantity pressed key and uses the lcd demonstration), and each lu yewei r

3、equests to correspond 2 group control output signal (fluid pot liquid input control and output control), the disposition miniature printer port, the establishment sound warning, all these need many i/o ports to support without doubt, the only monolithic integrated circuit is cannot accomplish, needs

4、 to expand the i/o port. in this design, the author thought that uses the special-purpose i/o expansion chip to have many malpractices, weighed the advantages and disadvantages, chooses has replaced special-purpose i/o with the monolithic integrated circuit the connection chip the method.special-pur

5、pose i/o chip and the monolithic integrated circuit serve as the i/o chip the contrast:special-purpose i/o connection chips i/o mouth quantity are not more than the monolithic integrated circuit (the author to use monolithic integrated circuit model is 89c52).the special-purpose i/o connection chip

6、use is not flexible, several use ways have been established by the chip designer, cannot surpass this scope change, but the monolithic integrated circuit receives limits is small, uses nimbly.the special-purpose i/o connection chip independence is bad, intelligence difference, regardless of being re

7、ceives the input signal or the output control signal, the i/o special-purpose chip adds color to the signal input output cannot make the decision, must by the monolithic integrated circuit decision making, only play relay or the transition signal role, has not monitored ability, cannot the independe

8、nt processing question, but the monolithic integrated circuit is not so, may use many kinds of way nimble processing question.uses i/o to expand the special-purpose chip to probably be familiar with it, the engineers and technicians must be more than generally to monolithic integrated circuits famil

9、iar degree to it, comparatively, uses it to waste the time, another i/o expands the special-purpose chip the price to be higher than the monolithic integrated circuit, considers from the cost accounting not economically.special-purpose i/o chip timeliness is bad, because i/o expands the special-purp

10、ose chip only to play the receiving and dispatching signal the role, itself has not processed the processing signal ability, such signal will undergo its transmission back and forth to create the detention inevitably, will thus have the timely bad problem.uses the monolithic integrated circuit to ma

11、ke the i/o connection, is advantageous for the software and hardware design modulation, the division of labor is clear, for the design, the debugging, the maintenance brings enormously convenient.used the monolithic integrated circuit to make the i/o connection to strengthen for the connection super

12、vision dynamics, lightened the main monolithic integrated circuits burden.hardware architecture and division of labor:the hardware design is divided the following several parts: monolithic integrated circuit; a/d conversion fraction; control signal output unit; the nonvolatile storage (makes the ram

13、 expansion); presses a key the part; demonstrates the part; prints the i/o port part; analog switch part.the monolithic integrated circuit selects 89c52, its characteristic is internal includes 8kb rom, does not need outside the piece to expand rom; a/d switch selects mc14433, its characteristic is

14、the conversion accuracy is high, antijamming ability, each second may transform about 20 times, because the fluid position change is not very quick, therefore may satisfy the monitor fluid position change the need; the control signal output uses the monolithic integrated circuit to control the 74ls3

15、73 latchs way, this may fluctuate the control output port quantity through the fluctuation latch integer way; because each group request can roll demonstrates in 1 year each class, every day, each months input output total quantity (on 1st 3 classes), normal or the accident power cut data does not l

16、ose, therefore has used at29lv040a (512kb) dodges the fast memory (also to be possible to use fram).because 89c52 are most may outside expand 64kb ram, to guarantee that has the enough storage space to be possible at29lv040a a16, a17 and a18 address wire and the 1# monolithic integrated circuits som

17、e port connection, like this through controls these 3 address wires the change to be possible to achieve uses at29lv040the 512kb space goal. presses a key the part to use conventional the non-code keyboard way then. in order to enhance the man-machine interactive ability, demonstrated that the part

18、has used gxm12864sl large screen lcd, on such screen may demonstrate from arranges chinese character, digit, equality and simple design; prints the i/o port, may carry on the corresponding connection disposition according to the request then; the analog switch selects many piece of cd4051, they with

19、 the monolithic integrated circuit coordination, use in choosing in the multi-channel fluid position simulation quantity 1 group fluid position simulation quantity, then carries on a/d transformation.because has selected 3 monolithic integrated circuits, has solved the i/o port insufficient problem

20、effectively, also caused in the design to simplify many, so long as according to the conventional connection chip way, has then omitted many transition chips, like 74ls244, 74ls245, 74ls73 and so on, also caused the software design becomes simple easy. because the hardware connection becomes simple

21、moreover is the conventional connection, therefore this article has not provided the detailed line connection diagram. between 3 monolithic integrated circuits data exchanges have used the serial port mailing address. in this design, 3 monolithic integrated circuits use also reposition, certainly ma

22、y also use separates the reset mode, but the pressed key must increase, this kind of situation regards the request to decide.利用多重單片集成電路的液位監(jiān)測(cè)儀采用單片集成電路設(shè)計(jì)液位監(jiān)測(cè)儀是非常一般的程序。如果必須檢測(cè)很多組液位（16組以上），每一組要求可以滾動(dòng)顯示一年中的每一類(lèi)，每一天，每個(gè)月的輸入輸出總量（顯示這三個(gè)其中的一個(gè)） ，正?；蛞馔鈹嚯姅?shù)據(jù)不會(huì)丟失，人機(jī)交互能力爭(zhēng)取優(yōu)化（必須設(shè)立適當(dāng)?shù)臄?shù)量按鍵，并使用液晶顯示屏） ，而且每個(gè)lu液位要求對(duì)應(yīng)2組控制輸出信號(hào)（

23、流體電位器液體輸入控制和輸出控制），微型打印機(jī)端口的配置，語(yǔ)音報(bào)警系統(tǒng)的設(shè)立，毫無(wú)疑問(wèn)，所有的這些都需要很多的i/o端口來(lái)支持，單一的單片集成電路是不能完成的，需要擴(kuò)充i/o端口。在這種設(shè)計(jì)中，作者認(rèn)為，使用專(zhuān)用i/o擴(kuò)充芯片有許多不足之處，權(quán)衡利弊后，選擇單片集成電路聯(lián)結(jié)芯片的方法取代專(zhuān)用i/o。專(zhuān)用i / o芯片和單片機(jī)作為i / o薄片形成了鮮明的對(duì)比：1) 專(zhuān)用i / o連接芯片的i / o口數(shù)量不會(huì)超過(guò)單片機(jī)集成電路(作者采用89c52單片機(jī)集成電路模型)。2) 專(zhuān)用的i / o連接芯片使用不靈活，幾種使用方法已經(jīng)被設(shè)計(jì)師確定，不能超過(guò)這個(gè)范圍的變化,但整體集成電路受限是小,使用靈活

24、。3) 專(zhuān)用的i / o連接片獨(dú)立性較差,智力有差異, 無(wú)論是接受輸入信號(hào)和輸出的控制信號(hào)，i / o專(zhuān)用芯片增添色彩的信號(hào)輸入輸出不能作出決定， 必須由單片機(jī)集成電路的決策，只扮演角色的轉(zhuǎn)換或者信號(hào)傳遞，沒(méi)有監(jiān)測(cè)能力，不能獨(dú)立處理問(wèn)題，但是單片機(jī)集成電路不是這樣,可以用多種方式靈活處理的問(wèn)題。4) 使用的i / o擴(kuò)大專(zhuān)用芯片大概會(huì)是很熟悉，工程師和技術(shù)員們必須大于一般對(duì)單片機(jī)的熟悉程度,，相比較而言，用它來(lái)浪費(fèi)時(shí)間，另一個(gè)i / o擴(kuò)展了專(zhuān)用芯片價(jià)格高于單一集成電路，認(rèn)為從成本核算不經(jīng)濟(jì)。5) 專(zhuān)用i / o芯片時(shí)間性是壞的，因?yàn)閕 / o擴(kuò)展只打了專(zhuān)用芯片收發(fā)訊號(hào)的角色，本身并沒(méi)有能力處理信號(hào)的處理,這樣的信號(hào)將接受它來(lái)回傳遞創(chuàng)造拘留不可避免，從而有隨時(shí)壞的問(wèn)題。6) 采用單片機(jī)集成電路的i / o連接,便于硬件和軟件的設(shè)計(jì)，分工明確，為設(shè)計(jì)、調(diào)試、維修帶來(lái)極大的方便。7）使用單片機(jī)對(duì)使i / o連接加強(qiáng)了監(jiān)管力度，減輕了主要的整體集成電路的負(fù)擔(dān)。硬件體系結(jié)構(gòu)和分工： 硬件的設(shè)計(jì)分為以下幾個(gè)部分：?jiǎn)纹呻娐? a/d轉(zhuǎn)換部分;控制信號(hào)輸出設(shè)備，非易失性存儲(chǔ)器（擴(kuò)展隨機(jī)存取存儲(chǔ)器）;按鍵部分;顯示器部分; i/o端口打印部分;模擬開(kāi)關(guān)部分。該單片集成電路選用89c