【正文】
oche 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 2022 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。s Poly Theater. Their show, titled Ulan Muqir on the Grassland, depicted the history and development of the art troupe. Being from the region allowed me to embrace the culture of Inner Mongolia and being a member of the troupe showed me where I belonged, Nasun, the art troupe39。s performers of the troupe still tour the region39。t have a formal stage. The audience just sat on the grass. Usually, the performances became a big party with local people joining in. For him, the rewarding part about touring isn39。80s. We sat on the back of pickup trucks for hours. The sky was blue, and we couldn39。s Shaanxi province pass through a stop on the ancient Silk Road, Gansu39。 //狀態(tài)標(biāo)志 signed char shangxian=38。 //溫度值全局變量 uchar n。 //小數(shù)點(diǎn) uchar x=0。 //閃爍間隔標(biāo)志 bit beep_st。 貼 片電阻的焊接方法 1)先將貼片電阻放在 固定好的原件座 兩個(gè)引腳中間; 13 2)焊接貼片電阻兩個(gè)腳。 a、 b、 c、 d、 e、 f、 g、 dp 為段引腳, S S S S4 分別表示四個(gè)數(shù)碼管的位。 數(shù)碼管概述 e1d2dp3c4g5S46b7S38S29f10a11S112L E DA F BE Ddp C GS4 S3 S2S1 圖 5:數(shù)碼管 數(shù)碼顯示器是一種由 LED發(fā)光二極管組合顯示字符的顯示器件,它使用了 8個(gè) Led發(fā)光二極管,其中七個(gè)用于顯示字符,一個(gè)顯示小數(shù)點(diǎn),所以通稱為七段發(fā)光二極管數(shù)碼顯示器。共陽數(shù)碼管是指將 12 所有發(fā)光二極管的陽極接到一起形成公共陽極 (COM)的數(shù)碼管,共陽數(shù)碼管在應(yīng)用時(shí)應(yīng)將公共極 COM 接到 +5V,當(dāng)某一字段發(fā)光二極管的陰極為低電平時(shí),相應(yīng)字段就點(diǎn)亮,當(dāng)某一字段的陰極為高電平時(shí),相應(yīng)字段就不亮。 10 圖 4: DS18B20 內(nèi)部結(jié)構(gòu) DS18B20的程序流程圖 11 開 始執(zhí) 行 初 始 化時(shí) 序發(fā) 出 跳 過 R O M匹 配 命 令啟 動(dòng) 溫 度 轉(zhuǎn) 換延 時(shí) 大 于 5 4 0 μ s 等 待溫 度 轉(zhuǎn) 化 完 成執(zhí) 行 初 始 化時(shí) 序發(fā) 出 匹 配R O M 指 令發(fā) 出 6 4 位序 列 號(hào)發(fā) 出 讀 便 箋存 儲(chǔ) 器 命 令讀 取 便 箋 存 儲(chǔ) 器 內(nèi)容 并 進(jìn) 行 C R C 校 驗(yàn)C R C 校 驗(yàn) 正 確 ?溫 度 數(shù) 據(jù) 格式 轉(zhuǎn) 換結(jié) 束是否 圖 5 程序流程圖 數(shù)碼管介紹 數(shù)碼管是一種半導(dǎo)體發(fā)光器件,其基本單元是發(fā)光二極管 。 UDD 是可供選用的外部電源端,不用時(shí)接地, GND 為地, NC空腳。在構(gòu)成大型溫控系統(tǒng)時(shí),允許在單線總線上掛接多片 DS18B20。當(dāng)電源電壓的極性反接時(shí),能保護(hù)DS18B20不會(huì)因發(fā)熱而燒毀,但此時(shí)芯片無法正常工作; ( 9) DS18B20的轉(zhuǎn)換速率比較高,進(jìn)行 9 位的溫度值轉(zhuǎn)換只需 ; ( 10)適配各種單片機(jī)或系統(tǒng); ( 11)內(nèi)含 64 位激光修正的只讀存儲(chǔ) ROM,扣除 8 位產(chǎn)品系列號(hào)和 8 位循環(huán)冗余校驗(yàn)碼 (CRC)之后,產(chǎn)品序號(hào)占 48位。固有測溫分辨率為 ℃。 有 獨(dú)特的單線接口方式, DS1820 在與微處理器連接時(shí)僅需要一條口線即可實(shí)現(xiàn)微處理器與 DS1820 的雙向通訊 ;其 測溫范圍 - 55℃ ~+ 125℃ ,固有測溫分辨率 ℃; 支持多點(diǎn)組網(wǎng)功能 ; 多個(gè) DS1820 可以并聯(lián)在唯一的三線上,實(shí)現(xiàn)多點(diǎn)測溫 ; 工作電源 為 3~5V/DC; 在使用中不需要任何外圍元件。因此,智能溫度傳感器 DS18B20作為溫度測量裝置已廣泛應(yīng)用于人民的日常生活和工農(nóng) 業(yè)生產(chǎn)中。目前,國際上新型溫度傳感器正從模擬式向數(shù)字式、從集成化向智能化和網(wǎng)絡(luò)化的方向飛速發(fā)展。為提高產(chǎn)品質(zhì)量、改進(jìn)產(chǎn)品性能,防止事故發(fā)生提供必要的信息和更可靠的數(shù)據(jù)。從而傳感器技術(shù)與計(jì)算機(jī)技術(shù)結(jié)合起來,對(duì)自動(dòng)化和信息化起重要作用。如果沒有各種精確可靠的傳感器對(duì)非電量和模擬信號(hào)進(jìn)行檢測并提供可靠的數(shù)據(jù),那計(jì)算機(jī)也無法發(fā)揮他應(yīng)有的作用。 DS18B20傳感器介紹 DS18B20概述 P 1 . 01P 1 . 12P 1 . 23P 1 . 34P 1 . 45P 1 . 56P 1 . 67P 1 . 78R S T9P 3 . 0 (R X D )10P 3 . 1 (T X D )11P 3 . 2 (IN T 0 )12P 3 . 3 (IN T 1 )13P 3 . 4 (T 0 )14P 3 . 5 (T 1 )15P 3 . 6 (W R )16P 3 . 7 (R D )17X T A L 218X T A L 119GND20(A 8 )P 2 .021(A 9 )P 2 .122(A 1 0 )P 2 .223(A 1 1 )P 2 .324(A 1 2 )P 2 .425(A 1 3 )P 2 .526(A 1 4 )P 2 .627(A 1 5 )P 2 .728P S E N29A L E / P R O G30E A /V P P31(A D 7 )P 0 .732(A D 6 )P 0 .633(A D 5 )P 0 .534(A D 4 )P 0 .435(A D 3 )P 0 .336(A D 2 )P 0 .237(A D 1 )P 0 .138(A D 0 )P 0 .039V C C408 9 C 5 2Y111.0592MHzC230C3 30R71 0 KV C C+ C11 0 u F1 23 4K0R E S E TV C C 8 在現(xiàn)代檢測技術(shù)中,傳感器占據(jù)著不可動(dòng)搖的重要位置。數(shù)碼管顯示部分。最小系統(tǒng)如圖 2所示。 P0口( Pin39~ Pin32): 8位雙向 I/O口線,名稱為 ~ P1口( Pin1~ Pin8): 8位準(zhǔn)雙向 I/O口線,名稱為 ~ P2口( Pin21~ Pin28): 8位準(zhǔn)雙向 I/O口線,名稱為 ~ P3口( Pin10~ Pin17): 8位準(zhǔn)雙向 I/O口線, 名稱為 ~ 7 E A /V P31X119X218R E S E T9P 3 7 / R D17P 3 6 W R16P 3 2 / IN T 012P 3 3 / IN T 113P 3 4 / T 014P 3 5 / T 115P 1 01P 1 12P 1 23P 1 34P 1 45P 1 56P 1 67P 1 78P 0 039P 0 138P 0 237P 0 336P 0 435P 0 534P 0 633P 0 732P 2 021P 2 122P 2 223P 2 324P 2 425P 2 526P 2 627P 2 728P S E N29A L E / P30P 3 1 / T X D11P 3 0 / R X D10GND20V C C40U1S T C 8 9 C 5 2 圖 1: STC89C51 封