【正文】 , OBOHDB 99H, 92H, 82H, OF8HDB 80H, 90H, 88H, 83HDB OC6H, OA1H, 86H, 8EHRET 本章小結軟件設計是本系統(tǒng)的重點，它直接影響到系統(tǒng)的整體性能。本章詳細講述了控制軟件的功能和設計。首先介紹軟件的功能，然后從總體上敘述軟件的結構構成，接著較為詳細的描述了系統(tǒng)中幾個關鍵模塊如鍵盤及顯示模塊以及采樣模塊等的實現(xiàn)方案，并總結出相應的子程序流程圖與程序清單。 LED數(shù)碼管動態(tài)顯示流程圖結 論本系統(tǒng)主要根據(jù)目前節(jié)水灌溉技術的發(fā)展趨勢和國內實際的應用特點和要求，采用了自動化的結構形式，實現(xiàn)對土壤濕度的自動檢測和控制。系統(tǒng)以單片機AT89C51為核心部件，單片機系統(tǒng)完成對土壤濕度信號的采集、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,運行程序該系統(tǒng)的主要特點是:(1)適用性強，用戶只需對界面參數(shù)進行設置并啟動系統(tǒng)正常運行便可滿足不同作物對土壤濕度的要求，實現(xiàn)對土壤濕度的實時監(jiān)控，下位機也可脫離上位機單獨工作。 (2)可對作物進行適時、適量灌水，不僅有利于作物的生長發(fā)育，而且避免了水資源的浪費，起到了高產(chǎn)節(jié)水的作用。 (3)將模糊智能控制技術引入對土壤濕度的分析和處理中，模糊控制決策無需建立被控對象的數(shù)學模型，系統(tǒng)的魯棒性強，適合對非線性、時變、滯后系統(tǒng)的控制，對灌溉系統(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)更具科學性。(4)系統(tǒng)成本低廉，操作非常簡單，可擴展性強，只要稍加改變，即可增加其他使用功能。本系統(tǒng)對現(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)只對灌溉中水的因素實行監(jiān)控，而未涉及肥的問題，應將水 肥結合起來進行灌溉，對作物生長效果會更好。 (2)應同時考慮土壤濕度和作物需水量兩個因素，判斷是否要對作物進行灌溉以及所需灌水量的多少。 (3)被測土壤濕度只是進行了兩點測試，如果能進行多點檢測就會使檢測到的濕度值精度更高。(4)本系統(tǒng)在模擬檢測中運行較好，但采樣據(jù)不太穩(wěn)定等，還有待于進一步完善提高參考文獻[1]吳景社，李久生，李英能等．紀節(jié)水農(nóng)業(yè)中的高新技術重點研究領域[J].農(nóng)業(yè)工程學報，2008.[2][M].北京：機械工業(yè)出版社,2004. [3]涂安富，金誠謙，吳崇友，盧宴，鐘偉民．幾種節(jié)水灌溉新技術分析[M].中國農(nóng)機化出版社,2005.[4]張有德，趙志英，、應用與實驗[M].上海：復旦大學出版社,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)分運移特征的初步研究[J].農(nóng)業(yè)工程程學報，2004.[7][J].軍械工程學院學報，Vol4，,2005.[8]司徒淞，張薇，賈大林．2000低壓管噴及其節(jié)水高產(chǎn)機理研究[M]. 北京：電子工業(yè)出版社,.[9]朱順華，王成春，[J].微計算機信息，2007（23）.[10][J].科學之友，.[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：北京航空航天大學出版社,2004.[14]韓志軍，沈晉源，—入門向導與設計實例[M].北京：機械工業(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 謝本設計是在我的導師孫玉芳老師的嚴格要求和精心指導下完成的。在做設計期間，孫老師嚴謹?shù)膶W風、淵博的知識、敏銳的思維和對科學孜孜不倦的態(tài)度給我留下了深刻的印象，使我受益終身。在做設計的時間里，我不僅掌握了更多的知識，更加明白了仔仔細細做事、認認真真做人的道理。首先，在本設計完成之時，我要向孫老師以及教研室所有幫助我解決設計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)設計的同學以及寢室室友，在這短短的三個月里，你們給我提出了很多寶貴意見，在畢業(yè)設計以及生活方面給了我極大的幫助，正是因為生活在這樣一個團結、互助的環(huán)境中，我才會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，沒有他們在學習生活中給我的無盡的愛與理解，我不會克服一路的困難，走到今天，順利的完成大學的學習生活。最后，向參加論文評審、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瞬即逝的很多個不同的日子過成了同一天的樣子；或許是追溯過去，對自己那些近乎偏執(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得自己自己似乎應該去做點什么，或者寫點什么。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