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畢業(yè)論文-基于at89s52單片機(jī)的自動(dòng)灌裝控制系統(tǒng)設(shè)計(jì)(完整版)

  

【正文】 ind rectitude and lead a moral life. He professes that, only by being self reliant, as opposed to relying on the government and being dictated to by society, can one begin leading a decent and purposeful life. He avers that such a life is the only life worth living. I agree with him. This essay was written during a time of social upheaval in America, and it is rather odd that Emerson authored it, as he was a part of the upper crust of society at the time. It just so happened that he looked around him, at the indolence and the wantonness of the people in his circle。s Liaoning province, decades ago. The solider gave the old man a handmade saddle when they bid farewell. The story inspired Nasun to write Carved Saddle, a song that later became one of his most popular numbers. Now, every year, Nasun recruits young singers and dancers for the troupe. The troupe has also designed a new repertoire, which is mostly based on the daily lives of Mongolian people, especially the lives of nomadic families, and has bined contemporary musical elements with folk songs of the region. Haimu, a 25yearold khoomei (a local variant of overtone singing) singer, joined the troupe three years ago. Along with a sixmember band, he performs fast songs and soft ones that he writes- all while playing the horsehead fiddle.Although I learned the piano since childhood and grew up listening to various kinds of music, to me, the folk music of Inner Mongolia is the root, he says. Performing in remote villages is pleasant. I feel at home on the boundless grasslands, and the warm people there make me feel fulfilled. The first round of spring auction season in Beijing ended last week, but it failed to create much spring in the art market. Although two pieces of Chinese painting fetched more than 100 million yuan, the decline in trading volume and sa le rate showed a downturn this year. In the ―Grand View: Chinese Painting Highlight‖ session at China Guardian 2020 spring auctions, Pan Tianshou’s representative work Eagle, Rock and Flora hit a record auction price of 279 million yuan, while Li Keran’s masterwork Jinggang Mountain fetched million yuan, an unexpected high in recent years. However, the trading volume fells to billion yuan from billion yuan in the same period the year before. The Huangchen 2020 Spring Auctions, which recorded million yuan in total sales, experienced the same. The s ection number went down to 5 from 12 pared to last year. According to expert Shao Jianwu, the art market did not attract much excitement this year due to the booming stock market and the persistent problems of fery and fake deals. The two pieces of Chinese painting notched up high price this spring due to their own value not due to a revival in the market. The successful transaction of two works with a hammer price of more than 100 million yuan once again confirms that valuable and rare works of high quality always earn the longlasting high price. Chinese painting and calligraphy is still the pillar of the market. However, the overall sales rate has dropped slightly, which reflects the demand for the ordinary auction goods has weakened,‖ said the president of China Guardian’s Hu Yanyan. Besides, the entry of new buyers also makes certain changes to the direction of purchasing. In a word, the overall market trend is very unpredictable. Although China Guardian 2020 Spring Auctions has achieved remarkable results, it does not mean that the market has walked out of the predicament. We still have to wait for the big economic boom to invigorate the art market.‖ Even so, the hot pursuit of some special items appeared this spring. A special session of China Guardian Spring Auctions titled ―Fine Gilt—Bronze Buddhist Images‖ achieved a great deal with total sales volume of million yuan and 92 percent sale rate. The 5th Shamar Rinpoche Statue from 1617th century of Tibet was sold for million yuan. The Beijing Chengxuan Auctions featured almost 2,800 items of coins and stamps in three sessions with good sale rate. The Huachen Auctions also set a special session of photographs under the condition of largescale decline of auction sessions. There was a palpable dull thud of disappointment that acpanied the return of the imperial entourage of Zhen Huan to her homeland. It followed a couple years of hushed excitement as Chinese fans were fed tidbits about their proud concubine who was supposed to conquer the high ground of the North American market. Zhen Huan is, of course, the title character of The Legend of Zhen Huan, a 2020 television series that swept China off its feet and later took other Asian countries by storm. Two years ago, it was reported that HBO, a premium cable service headquartered in the United States, was going to air it in North America after some modification. Now, a condensed version that provides English subtitles but no dubbing has finally been made available on Netflix for online streaming. This version, highly anticipated as a milestone in China39。80s. We sat on the back of pickup trucks for hours. The sky was blue, and we couldn39。 在本設(shè)計(jì)中,我通過(guò)查閱網(wǎng)絡(luò)與 圖書(shū)館搜集到的資料,以及指導(dǎo)老師的指導(dǎo)與建議,在確定課題和研究方向上,通過(guò)對(duì)單片機(jī)的工作原理及自動(dòng)灌裝控制理論的理解和研究,設(shè)計(jì)出了這一套自動(dòng)灌裝控制系統(tǒng)的硬件結(jié)構(gòu)和軟件結(jié)構(gòu),基本上完成了任務(wù)書(shū)的要求,通過(guò)調(diào)試,此進(jìn)瓶控制方法能夠達(dá)到這個(gè)灌裝系統(tǒng)的灌裝要求,各個(gè)部分從進(jìn)瓶、灌裝到出瓶之間的協(xié)調(diào)能力能夠穩(wěn)定地運(yùn)行。由《機(jī)械設(shè)計(jì)(第七版)》表( 82)選帶的基準(zhǔn)長(zhǎng)度 Ld=800mm。 基于 51 單片機(jī)的自動(dòng)灌裝控制系統(tǒng)設(shè)計(jì) 25 圖 53 模擬調(diào)試系統(tǒng) 系統(tǒng)安裝帶傳動(dòng)的設(shè)計(jì)說(shuō)明 按照下面的計(jì)算可以確定帶傳動(dòng)的各個(gè)參數(shù)要求: 取帶輪的傳動(dòng)比 i=2,小帶輪轉(zhuǎn)速 n1=1400r/min,電動(dòng)機(jī)的額定功率 P=,一天運(yùn)轉(zhuǎn)時(shí)間大于 12小時(shí)。 } } } 此程序的功能用來(lái)實(shí)現(xiàn)自動(dòng)灌裝的功能,在這之后還有其他子程序,同上面的這些子程序一 起能夠?qū)崿F(xiàn)自動(dòng)灌裝系統(tǒng)的功能。 void gongzuo() //功能子函數(shù) { uchar xian0。 step3。 step7。 } } sxianshi(sec/1000,sec%1000/100,sec%100/10,sec%10)。 fengming()。 } } if(KEY!=0) { EA=0。 delay(2)。 P0 = du[h]。 P2 = 0xbf。//加料量重新定義清零鍵 數(shù)碼管顯示子程序 數(shù)碼管顯示部分為了節(jié)約 I/O 口的使用,利用動(dòng)態(tài)掃描的方式來(lái)實(shí)現(xiàn)數(shù)據(jù)的顯示,以下是顯示部分。//繼電器控制電動(dòng)機(jī)通電位 sbit miao =P1^4。有容器到來(lái)檢測(cè)接近開(kāi)關(guān)在模擬系
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