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he Earth bees the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, he39。t start planning... Those years, those days of do, finally, like youth, will end in our life. 此刻,天空是 陰暗的,空氣里有著剛下過(guò)雨之后的清新因子。 Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn39。t appealed against 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 If you are being 延安大學(xué)西安創(chuàng)新學(xué)院本科畢業(yè)論文(設(shè)計(jì)) 18 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 a damagesbased agreement. In England and Wales, your solicitor can39。 延安大學(xué)西安創(chuàng)新學(xué)院本科畢業(yè)論文(設(shè)計(jì)) 16 參考文獻(xiàn) [1] 李海濱,片春媛,許瑞雪 .單片機(jī)技術(shù)課程設(shè)計(jì)與項(xiàng)目實(shí)例 [M].北京:中國(guó)電力出版社,2022 [2] 許文斌,曾全勝 .單片機(jī)技術(shù)應(yīng)用與實(shí)踐 [M].北京:清華大學(xué)出版社, 2022 [3] 曾光宇等 .現(xiàn)代傳感器技術(shù)與應(yīng)用基礎(chǔ) [M].北京 :北京理工大學(xué)出版社 ,2022 [4] 韓英梅,趙建平,白慧靜 .基于 DHT11 的無(wú)線濕溫度傳感器網(wǎng)絡(luò)節(jié)點(diǎn)的設(shè)計(jì) [J].井岡山大學(xué)學(xué)報(bào), 2022, 31(5): 6770 [5] 唐繼賢 .51 單片機(jī)工程應(yīng)用實(shí)例 [M]. 北京:北京航空航天大學(xué)出版社, 2022 [6] 劉燦軍 .實(shí)用傳感器 [M].北京 :國(guó)防工業(yè)出版社 ,2022 [7] 黃鴻 ,吳石增 .傳感器及其應(yīng)用技術(shù) [M].北京 :北京理工大學(xué)出版社 ,2022. [8] 王芳琴 .單片機(jī)控制的節(jié)水灌溉系統(tǒng)的研究 [J].華中農(nóng)業(yè)大學(xué) . [9] 楊永杰 ,馮軍 .數(shù)字式溫濕度傳感器 SHT11在塵埃檢測(cè)儀中的應(yīng)用 [J].電子工程師 ,2022 [10] 艾永樂(lè) ,付子儀 .數(shù)字電子技術(shù)基礎(chǔ) [M].北京 :中國(guó)電力出版社 ,2022. 延安大學(xué)西安創(chuàng)新學(xué)院本科畢業(yè)論文(設(shè)計(jì)) 17 致 謝 時(shí)光荏苒,大學(xué)生活即將結(jié)束.回顧大學(xué) 四年 的學(xué)習(xí)、生活和工作 , 有成功的汗水,也有失敗的辛酸,正是有了這些在大學(xué)里的歷練,才讓我在走向競(jìng)爭(zhēng)激烈的社會(huì)的時(shí)候有著以往不能比擬的自信 。通過(guò)按鍵開(kāi)關(guān)對(duì)當(dāng)前時(shí)間以及澆水時(shí)間進(jìn)行設(shè)置,單片機(jī)從時(shí)鐘芯片 DS1302 讀入時(shí)間與每天的實(shí)時(shí)時(shí)間,當(dāng)時(shí)間處在所設(shè)置的澆水時(shí)間內(nèi)時(shí),單片機(jī) 發(fā)出一個(gè)控制信號(hào),開(kāi)始澆水。 LCD1602 的引腳說(shuō)明 LCD1602 的引腳按功能可分為三類(lèi):數(shù)據(jù)類(lèi),電源類(lèi)和編程控制類(lèi)。 LCD1602 液晶顯示屏 LCD 液晶顯示器簡(jiǎn)介 LCD1602 液晶顯示器是目前廣泛使用的一種字符型液晶顯示模塊。 2:( DATA)串行數(shù)據(jù),單總線。 程序存儲(chǔ)器 ROM 程序存儲(chǔ)器是只讀存儲(chǔ)器,用于存放程序代碼和表格常數(shù)。 STC89C51 單片機(jī)引腳功能 STC89C51 器引腳排列和邏輯符號(hào)如圖 32 所示。 手動(dòng)澆花:是由單片機(jī)從時(shí)鐘芯片 DS1302 讀入月份與每天的實(shí)時(shí)時(shí)刻,通過(guò)軟件程序設(shè)定定時(shí)澆水的時(shí)間與澆水的量,已達(dá)到定時(shí)定量澆水。 設(shè)計(jì)方案 設(shè)計(jì)了一款基于單片機(jī) STC89C51 的 自動(dòng)澆花系統(tǒng),用以實(shí)現(xiàn)無(wú)人照看花卉時(shí)智能澆花。還可以裝點(diǎn)空間,舒緩人們緊張的情緒 。并通過(guò)單片機(jī)程序設(shè)定澆水的上下限值與 DHT11送入單片機(jī)的空氣濕度值相比較,當(dāng)?shù)陀谙孪拗禃r(shí),單片機(jī)輸出一個(gè)信號(hào)控制電磁閥打開(kāi),開(kāi)始澆水,高于上限值時(shí)由單片機(jī)輸出一個(gè)信號(hào)控制電磁閥關(guān)閉,停止?jié)菜D壳皣?guó)內(nèi)陶瓷制作的自動(dòng)澆花器由于價(jià)格低廉而受到人們的喜愛(ài),但從實(shí)用性來(lái)看遠(yuǎn)不如電子類(lèi)的自動(dòng)澆花器實(shí)用。若是選擇智能模式澆花,則是通過(guò)對(duì)植物周?chē)諝獾臐駵囟冗M(jìn)行檢測(cè),來(lái)進(jìn)行判定是否澆水。 ( 1) 4KB 程序存儲(chǔ)器( ROM/EPROM/Flash),可外擴(kuò)至 64KB。 ( 4) ~ :一般 I/O 口引腳或第二功能引腳。 片內(nèi) RAM 可劃分為兩部分: 00H~ 7FH 為低 128 字節(jié)地址; 80H~ FFH 為高128 字節(jié)地址。 3:( X X2)震蕩源,外接 32768Hz 晶振。 具有字符發(fā)生器 ROM,可顯示 192 種 字符( 160 個(gè) 57 點(diǎn)陣字符和 32個(gè) 510 點(diǎn)陣字符)。 延安大學(xué)西安創(chuàng)新學(xué)院本科畢業(yè)論文(設(shè)計(jì)) 12 該系統(tǒng)包括空氣濕溫度的采集與顯示系統(tǒng)和定時(shí)器的設(shè)置與顯示系統(tǒng)兩個(gè)系統(tǒng) 。在用數(shù)字電路控制自動(dòng)給水系統(tǒng)及時(shí)的給澆水系統(tǒng)供水。同時(shí)也感謝王海軍老師在課題研究中所給予的幫助。s actions. CSKA said they were surprised and disappointed by Toure39。也曾經(jīng)好像已經(jīng)下定了決心去做某件事,但更多的時(shí)候是最后又打起了退堂鼓。屏住呼吸,生活停滯;呼出呼吸,更多新奇與經(jīng)歷又將拉開(kāi)序幕。其實(shí),我們有能力面對(duì)這些痛苦的感受,從中領(lǐng)悟到出路。那些曾經(jīng)所謂的非做不可,只是青蔥年華里自己給自己注射的一支強(qiáng)心劑,或者說(shuō),是自以為是的精神寄托罷了。 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(kāi)頭的年齡已經(jīng)到了尾聲。 在我的十幾年求學(xué)歷程里,離不開(kāi)父母的鼓勵(lì)和支持,是他們辛勤的勞作,無(wú)私的付出,為我創(chuàng)造良好的學(xué)習(xí)條件,我才能順利完成學(xué)業(yè),感激他們一直以來(lái)對(duì)我的撫養(yǎng)與培育??諝鉂穸鹊臋z測(cè)和顯示以 SHT11 溫濕度傳感器為感應(yīng)部件,將檢測(cè)到的空氣濕度值送給 STC89C51 單片機(jī),再由單片機(jī)的 I/O 口輸出到 LCD液晶屏中進(jìn)行顯示。 DHT11 濕溫度傳感器將檢測(cè)的空氣濕溫度數(shù)據(jù)通過(guò)單片機(jī)的 I/O 接口傳送到 LCD 上顯 示出來(lái)。 具有 80 字節(jié)的 RAM。 5:( RST )復(fù)位 /片選端。其內(nèi)部含有一個(gè)電阻式感濕元件和一個(gè) NTC 測(cè)溫元件,并且與一個(gè)高性能的 8 位單片機(jī)相連。 ( 2) ALE/PROG:地址鎖存信號(hào)引腳 /編程脈沖輸入引腳。 ( 3) 21 個(gè)特殊功能寄存器( SFR)。若是選擇手動(dòng)模式澆花,則是定時(shí)定量的澆水,就在規(guī)定的時(shí)間按照澆水時(shí)間的長(zhǎng)短對(duì)植物進(jìn)行定量澆水。電子類(lèi)自動(dòng)澆花器又稱(chēng)時(shí)控淋裝置,根據(jù)電源不同分為交流電自動(dòng)澆花器和電池自動(dòng)澆水器兩種。 關(guān)鍵詞: STC89C51 單片機(jī); DHT11 溫濕度傳感器; LCD; DS1302 時(shí)鐘芯 II Design of potted flowers automatic watering system Abstract: The design of an intelligent watering system, to realize the automatic watering flower. Potted plant automatic watering system of this design is divided into two modules: the air temperature and humidity detection and control and realtime display and timing control. The detection and control of air temperature and humidity is divided again for detection of air temperature and humidity and display, automatic watering system. Detection of air temperature and humidity and display of temperature and humidity sensor DHT11 as the sensing ponent, air temperature and humidity will detect the value into the STC89C51 microcontroller, and then display the numerical output to LCD LCD screen. And through the MCU program set the upper and lower limits of water pared to air humidity and DHT11 into the single value, when less than the lower limit, the SCM output a signal to control the electromagic valve is opened, the beginning of watering, higher than the limit value by SCM outputs a signal to control the electromagic valve is closed, stop watering. The real time display and timing control by the SCM from the realtime clock chip DS1302 read and time of day, time and watering watering them through the program setting the amount of watering. Keywords: STC89C51。 DS1302 clock core III 目 錄 ..................................................................................................................................................... 1 選題的目的與意義 .................................................................................................................. 1 自動(dòng)澆花器目前的發(fā)展現(xiàn)狀 .................................................................................................. 1 設(shè)計(jì)方案 ..................................................................................................................