【正文】 as 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. 基于單片機(jī)的智能電風(fēng)扇控制系統(tǒng) 20 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。雖然只有短短的三年，但是在學(xué)校卻讓我感受到了家的溫暖，讓我對人生進(jìn)一步有了明確的目標(biāo)。通過這次畢業(yè)設(shè)計我對單片機(jī)又有了更深的了解，發(fā)現(xiàn)我們的很多機(jī)械產(chǎn)物都和單片機(jī)有著息息相關(guān)的聯(lián)系。進(jìn)一步實現(xiàn)了降低工作成本提高工作效率，響應(yīng)了國家所提倡的節(jié)能減排 口號。 現(xiàn)代人類生活中所用的幾乎每件電子和機(jī)械產(chǎn)品中都會集成有單片機(jī) 。 （設(shè) 1秒鐘通過波形數(shù) N=100） 中斷流程圖如圖所示： 電機(jī)控制模塊中斷響應(yīng)流程圖 基于單片機(jī)的智能電風(fēng)扇控制系統(tǒng) 14 主要程序 外中斷 INT0的部分中斷響應(yīng)程序如下： ORG 0003H INTD0: PUSH ACC PUSH PSW PUSH DPH PUSH DPL SETB MOV A, 5FH JZ TING1 DEC A MOV 5FH,A LJMP FAN2 TING1: ? FAN2: MOV A, 5BH JZ TING2 DEC A MOV 5BH, A LJMP ZONG TING2:? ZONG: MOV A, 59H JZ KAI DEC A MOV 59H, A LJMP EXIT KAI: 基于單片機(jī)的智能電風(fēng)扇控制系統(tǒng) 15 CLR JB , KAI2 KAI2: MOV A, 66H JZ EXIT1 EXIT1: MOV 5FH,5AH MOV 5BH,66H MOV 59H,100 EXIT: POP DPL POP DPH POP PSW POP ACC RETI 基于單片機(jī)的智能電風(fēng)扇控制系統(tǒng) 16 結(jié) 論 通過這次畢業(yè)設(shè)計我在很大程度上提高了自己的獨立思考能力和關(guān)于單片機(jī)知識的掌握，我們正處在節(jié)能化和智能化高速發(fā)展時代，發(fā)展單片機(jī)是未來的趨勢。主回路控制執(zhí)行程序的任務(wù)是初始化數(shù)據(jù)存儲單元，確 定電機(jī)工作參數(shù) Nmin／ Nmax， 并將其換算成“有效過零脈沖”的個數(shù)；確定中斷優(yōu)先 級、開中斷，為了保證正弦波的完整，工頻過零同步中斷 INT0確定為高一級的中斷 源。這樣就可以按照控制處理得到的控制量的要求，實現(xiàn)可控硅的過零控制，從而達(dá)到按控制量控制的效果，實現(xiàn)速度可調(diào)。 DS18B20芯片功能命令表 基于單片機(jī)的智能電風(fēng)扇控制系統(tǒng) 10 主要程序如下： MAIN: ；初始化 LCALL RST_DS18B20 LCALL GET_TEMPER MOV A,20H MOV C,08H RRC A MOV C,09H RRC A MOV C,10H RRC A MOV C,11H RRC A MOV 20H,A LCALL DISPLAY AJMPMAIN RST_DS18B20: SETB P3. 7 NOP CLR P3. 7 MOV R1, 3 RST1:MOV R0, 110 DJNZ R0, $ DJNZ R1,RST1 SETB P3. 7 NOP NOP MOV R0, 25H RST2:JNB P3. 7,RST3 基于單片機(jī)的智能電風(fēng)扇控制系統(tǒng) 11 DJNZ R0,RST2 LJMP RST4 RST3: SETB FLAG LJMP RST5 RST4:CLR FLAG LJMP RST7 RST5:MOV R0, 115 RST6:DJNZ R0, $ RST7: SETB P3. 7 RET WR_DS18B20: ；寫數(shù)據(jù)子程序 MOV R2, 8 CLR C WR1: CLR P3. 7 MOV R3, 6 DJNZ R3, $ RRC A MOV P3. 7,C MOV R3, 25 DJNZ R3, $ SETB P3. 7 NOP DJNZ R2,WR1 SETB P3. 7 RET RD_DS18B20: ；讀數(shù)據(jù)子程序 MOV R4, 2 MOV R1, 20H READ1: 基于單片機(jī)的智能電風(fēng)扇控制系統(tǒng) 12 MOV R2, 8 READ2: CLR C SETB P3. 7 NOP NOP CLR P3. 7 NOP NOP NOP SETB P3. 7 MOV R3, 9 READ3: DJNZ R3,READ3 MOV C, P3. 7 MOV R3, 23 READ4: DJNZ R3,READ4 RRC A DJNZ R2,READ2 MOV R1