【正文】 , OBOHDB 99H, 92H, 82H, OF8HDB 80H, 90H, 88H, 83HDB OC6H, OA1H, 86H, 8EHRET 本章小結(jié)軟件設(shè)計(jì)是本系統(tǒng)的重點(diǎn)，它直接影響到系統(tǒng)的整體性能。本章詳細(xì)講述了控制軟件的功能和設(shè)計(jì)。首先介紹軟件的功能，然后從總體上敘述軟件的結(jié)構(gòu)構(gòu)成，接著較為詳細(xì)的描述了系統(tǒng)中幾個(gè)關(guān)鍵模塊如鍵盤及顯示模塊以及采樣模塊等的實(shí)現(xiàn)方案，并總結(jié)出相應(yīng)的子程序流程圖與程序清單。 LED數(shù)碼管動(dòng)態(tài)顯示流程圖結(jié) 論本系統(tǒng)主要根據(jù)目前節(jié)水灌溉技術(shù)的發(fā)展趨勢(shì)和國內(nèi)實(shí)際的應(yīng)用特點(diǎn)和要求，采用了自動(dòng)化的結(jié)構(gòu)形式，實(shí)現(xiàn)對(duì)土壤濕度的自動(dòng)檢測(cè)和控制。系統(tǒng)以單片機(jī)AT89C51為核心部件，單片機(jī)系統(tǒng)完成對(duì)土壤濕度信號(hào)的采集、處理、顯示等功能。用Proteus軟件繪制電路原理圖。利用MCS51匯編語言編制,運(yùn)行程序該系統(tǒng)的主要特點(diǎn)是:(1)適用性強(qiáng)，用戶只需對(duì)界面參數(shù)進(jìn)行設(shè)置并啟動(dòng)系統(tǒng)正常運(yùn)行便可滿足不同作物對(duì)土壤濕度的要求，實(shí)現(xiàn)對(duì)土壤濕度的實(shí)時(shí)監(jiān)控，下位機(jī)也可脫離上位機(jī)單獨(dú)工作。 (2)可對(duì)作物進(jìn)行適時(shí)、適量灌水，不僅有利于作物的生長(zhǎng)發(fā)育，而且避免了水資源的浪費(fèi)，起到了高產(chǎn)節(jié)水的作用。 (3)將模糊智能控制技術(shù)引入對(duì)土壤濕度的分析和處理中，模糊控制決策無需建立被控對(duì)象的數(shù)學(xué)模型，系統(tǒng)的魯棒性強(qiáng)，適合對(duì)非線性、時(shí)變、滯后系統(tǒng)的控制，對(duì)灌溉系統(tǒng)采用模糊控制非常適合。具體 采用雙輸入單輸出的模糊控制方法，使控制系統(tǒng)更具科學(xué)性。(4)系統(tǒng)成本低廉，操作非常簡(jiǎn)單，可擴(kuò)展性強(qiáng)，只要稍加改變，即可增加其他使用功能。本系統(tǒng)對(duì)現(xiàn)代化農(nóng)業(yè)的發(fā)展具有十分重要的意義： (1)本系統(tǒng)只對(duì)灌溉中水的因素實(shí)行監(jiān)控，而未涉及肥的問題，應(yīng)將水 肥結(jié)合起來進(jìn)行灌溉，對(duì)作物生長(zhǎng)效果會(huì)更好。 (2)應(yīng)同時(shí)考慮土壤濕度和作物需水量?jī)蓚€(gè)因素，判斷是否要對(duì)作物進(jìn)行灌溉以及所需灌水量的多少。 (3)被測(cè)土壤濕度只是進(jìn)行了兩點(diǎn)測(cè)試，如果能進(jìn)行多點(diǎn)檢測(cè)就會(huì)使檢測(cè)到的濕度值精度更高。(4)本系統(tǒng)在模擬檢測(cè)中運(yùn)行較好，但采樣據(jù)不太穩(wěn)定等，還有待于進(jìn)一步完善提高參考文獻(xiàn)[1]吳景社，李久生，李英能等．紀(jì)節(jié)水農(nóng)業(yè)中的高新技術(shù)重點(diǎn)研究領(lǐng)域[J].農(nóng)業(yè)工程學(xué)報(bào)，2008.[2][M].北京：機(jī)械工業(yè)出版社,2004. [3]涂安富，金誠謙，吳崇友，盧宴，鐘偉民．幾種節(jié)水灌溉新技術(shù)分析[M].中國農(nóng)機(jī)化出版社,2005.[4]張有德，趙志英，、應(yīng)用與實(shí)驗(yàn)[M].上海：復(fù)旦大學(xué)出版社,2006.[5][M].北京：電子工業(yè)出版社,.[6]魏新平．滴灌和噴灌條件下土壤養(yǎng)分運(yùn)移特征的初步研究[J].農(nóng)業(yè)工程程學(xué)報(bào)，2004.[7][J].軍械工程學(xué)院學(xué)報(bào)，Vol4，,2005.[8]司徒淞，張薇，賈大林．2000低壓管噴及其節(jié)水高產(chǎn)機(jī)理研究[M]. 北京：電子工業(yè)出版社,.[9]朱順華，王成春，[J].微計(jì)算機(jī)信息，2007（23）.[10][J].科學(xué)之友，.[11][M].北京：電子工業(yè)出版社,[12][J].軟件天地，（11）[13]李光飛，樓然苗，胡佳文，[M].北京：北京航空航天大學(xué)出版社,2004.[14]韓志軍，沈晉源，—入門向?qū)c設(shè)計(jì)實(shí)例[M].北京：機(jī)械工業(yè)出版社,2005.[15],Machine vision extracted plant movement for early detention of plant water[M]. UK:Cambridge University Press,1998.[16]ZHU L,MADHOW daptive interference suppression for DS CDMA over Rayleigh fading chinnel[J].Proc GLOBE COM’97,1997.致 謝本設(shè)計(jì)是在我的導(dǎo)師孫玉芳老師的嚴(yán)格要求和精心指導(dǎo)下完成的。在做設(shè)計(jì)期間，孫老師嚴(yán)謹(jǐn)?shù)膶W(xué)風(fēng)、淵博的知識(shí)、敏銳的思維和對(duì)科學(xué)孜孜不倦的態(tài)度給我留下了深刻的印象，使我受益終身。在做設(shè)計(jì)的時(shí)間里，我不僅掌握了更多的知識(shí)，更加明白了仔仔細(xì)細(xì)做事、認(rèn)認(rèn)真真做人的道理。首先，在本設(shè)計(jì)完成之時(shí)，我要向?qū)O老師以及教研室所有幫助我解決設(shè)計(jì)問題的老師表示深深的謝意。接著我要感謝和我一起做畢業(yè)設(shè)計(jì)的同學(xué)以及寢室室友，在這短短的三個(gè)月里，你們給我提出了很多寶貴意見，在畢業(yè)設(shè)計(jì)以及生活方面給了我極大的幫助，正是因?yàn)樯钤谶@樣一個(gè)團(tuán)結(jié)、互助的環(huán)境中，我才會(huì)有今天這樣小小的成就。我要感謝我的家人，如果沒有我的家人一如既往的支持，沒有他們?cè)趯W(xué)習(xí)生活中給我的無盡的愛與理解，我不會(huì)克服一路的困難，走到今天，順利的完成大學(xué)的學(xué)習(xí)生活。最后，向參加論文評(píng)審、答辯的教師組表示衷心的感謝和崇高的敬意！g an employment tribunal claiEmployment tribunals sort out disagreements between employers and employees.You may need to make a claim to an employment tribunal if: you don39。t agree with the disciplinary action your employer has taken against you your employer dismisses you and you think that you have been dismissed unfairly.For more information about dismissal and unfair dismissal, seeDismissal.You can make a claim to an employment tribunal, even if you haven39。tappealedagainst the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal.Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept i.If you are worried about how the time limits apply to you, take advice from one of the organisations listed underFurther help.Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation.Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the organisations listed underFurther help.If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as adamagesbased agreement. In England and Wales, your solicitor can39。t charge you more than 35% of your pensation if you win the case.If you are thinking about signing up for a damagesbased agreement, you should make sure you39。re clear about the terms of the agreement. It might be best to get advice from an experienced adviser, for example, at a Citizens Advice Bureau. To find your nearest CAB, including those that give advice by , click onnearest CAB.For more information about making a claim to an employment tribunal, seeEmployment tribunals.The (lack of) air up there Watch mCayman Islandsbased Webb, the head of Fifa39。s antiracism taskforce, is in London for the Football Association39。s 150th anniversary celebrations and will attend City39。s Premier League match at Chelsea on Sunday.I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport.For me it39。s about how he felt and I would like to speak to him first to find out what his experience was.Uefa hasopened disciplinary proceedings against CSKAfor the racist behaviour of their fans duringCity39。s 21 win.Michel Platini, president of European football39。s governing body, has also ordered an immediate investigation into the referee39。s actions.CSKA said they were surprised and disappointed by Toure39。s plaint. In a statement the Russian side added: We found no racist insults from fans of CSKA.Age has reached the end of the beginning of a word. May be guilty in his seems to passing a lot of different life became the appearance of the same day。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it.　　一字開頭的年齡已經(jīng)到了尾聲。或許是愧疚于自己似乎把轉(zhuǎn)瞬即逝的很多個(gè)不同的日子過成了同一天的樣子；或許是追溯過去，對(duì)自己那些近乎偏執(zhí)的怪異信念的醒悟，這些天以來，思緒一直很凌亂，在腦海中不斷糾纏?？傆X得自己自己似乎應(yīng)該去做點(diǎn)什么，或者寫點(diǎn)什么。二十年的人生軌跡深深淺淺，突然就感覺到有些事情，非做不可了。The end of our life, and can meet many things really do?　　而窮盡我們的一生，又能遇到多少事情是真正地非做不可？During my childhood, think lucky money and new clothes are nec