需要金幣： 1000 個金幣 |
資料包括：完整論文 |  |
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| 轉換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字數(shù)：12845 |  | |
| 折扣與優(yōu)惠：團購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:隨著人們生活水平的不斷提高，家用電器逐漸普及，市場對于智能控制系統(tǒng)的需求也越來越大的情況下。數(shù)字時鐘的出現(xiàn)打破了人們對時鐘的傳統(tǒng)概念，它不僅可以通過數(shù)字直觀地顯示日歷時間，用音樂及語音等聲音報時；還可以定時發(fā)出各種聲、光、電信號，以啟動各種設備實現(xiàn)實時控制、時間順序控制等。如作息時間自動打鈴、家電設備自動定時啟動和關閉、生產過程順序控制等等，用途很廣。所有這些都是以時鐘數(shù)字化為基礎的，因此，研究數(shù)字時鐘及擴大其應用，有著非?，F(xiàn)實的意義。 本設計的數(shù)字自動打鈴系統(tǒng)采用了DS1302作為時鐘電路，時鐘電路的主要任務是產生實時時鐘信號，一方面送到數(shù)字顯示器進行顯示，另一個方面提供自動打鈴電路的存儲器地址信號。存儲器用單片機AT89S52來讀取、存儲、寫入時鐘信號控制其時間電路的顯示以及響鈴電路的正常運作即發(fā)出“嘀-嘀”的打鈴聲設計到時自動打鈴器。 電源采用一個直流穩(wěn)壓電源。直流穩(wěn)壓電源一般由電源變壓器,整流濾波電路及穩(wěn)壓電路所組成. 但是日歷時鐘時常跑快跑慢的現(xiàn)象普遍存在，經過日積月累，就會產生較大的誤差。為了解決這一問題，我們設計了能夠自動校準和自動打鈴的可編程時鐘控制器。它能很好的幫助我們完成對操控方面的時序和時間的控制，能夠讓我們來掌握運籌時間而不是讓時間來催促逼迫我們。 關鍵詞：數(shù)字時鐘；可編程控制器；時鐘控制器
Abstract:People in the continuous improvement of living standards household electrical appliances gradually universal, intelligent control system for the market demand is increasing. The emergence of digital clock on the clock to break the people's traditional concept, It's not only through digital visual display calendar time, with sound, music and Chinese speech sounds, such as timekeeping; can also give a variety of sound, light, signals, To start to achieve real-time control of equipment, time sequence control. Such as auto-play and rest time bell, Home Appliances automatic timing hoist, the order of the production process control, etc., use a very wide. All of these are digital watches and clocks, as the basis and, therefore, on digital clocks and expand its applications, a very practical significance. The design of the digital automatic rang the bell system USES a DS1302 as the clock circuit, clocking circuit is the main task of the produce real time clock signal, on the one hand, to the digital display said, another aspect of the bell ring circuit provides automatic memory address signals. And the memory use monolithic integrated circuit AT89S52 to read, storage, write the clock signal control of its time circuit of the display, and rang the bell of the circuit is a normal operation \"di-du\" play the bell ringing the bell schedules design automatic device. Power to adopt a DC power supply. DC power supply from the general power transformer, rectifier filter circuits and components by the regulator circuit However, the calendar clock ran sprints often slow the widespread phenomenon, after accumulated, it will have a greater error. In order to solve this problem, we can design the automatic calibration and broadcast the whole point of programmable clock controller. It's good to help us complete control of the timing and duration of control, so that we can master planning to allow time to time rather than forcing us to press. Key words: digital clock; PLC; clock controlle
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