多功能電熱水器控制器

電子信息工程論文編號:DZXX303  論文字數(shù):12301,頁數(shù):27

目   錄

摘要 I
ABSTRACT II
第1章 緒 論 1
1.1 背景 1
1.2 研究內(nèi)容 2
第2章 控制系統(tǒng)的總體方案設(shè)計 3
2.2 硬件電路設(shè)計 3
2.2.1 芯片特性簡介 3
2.2.2 I/O 口特性說明 5
2.2.3 I/O 口配置 6
2.2.4 溫度檢測電路 6
2.2.5 時鐘芯片PCF8563 8
2.2.6 鍵盤、顯示接口電路 10
2.3 軟件設(shè)計 11
2.3.1 鍵盤處理及顯示子程序 12
2.3.2 時鐘芯片PCF8563的讀寫操作 13
2.3.3 A/D轉(zhuǎn)換程序 14
2.3.4 EEPROM的讀寫 17
2.3.5 數(shù)字濾波 18
2.3.6 利用“看門狗”技術(shù)來實現(xiàn)PC的快速自恢復(fù) 19
第3章 總 結(jié) 21
致  謝 23
參考文獻 24

摘要

 本文以Philips公司的P89LPC935單片機為核心控制元件，輔以溫度傳感器和PCF8563時鐘芯片等外圍電路，設(shè)計了一款多功能電熱水器控制器,具有定時預(yù)約加熱、設(shè)置水溫和實時顯示功能。
 本文首先介紹了系統(tǒng)的總體組成,然后分硬件與軟件兩部分進行闡述,硬件中描述了整體結(jié)構(gòu)和各模塊的相互關(guān)系，介紹了單片時鐘/日歷芯片PCF8563內(nèi)部結(jié)構(gòu)及外部特征。軟件部分給出了主程序流程圖，采用模塊化設(shè)計思想，在主程序模塊下分成若干彼此獨立的分模塊,然后介紹了抗突發(fā)脈沖干擾的數(shù)字濾波技術(shù),描述了基本算法,最后對系統(tǒng)進行了總結(jié) 。  
 
關(guān)鍵詞: 單片機，溫度傳感器，多功能, 熱水器

ABSTRACT

 This paper uses single-chip microcontroller P89LPC935 of PHILPS as the key part , assisting to spread outer circle electric circuits, such as temperature sensor and PCF8563 clock chip...etc., to design a style multi-function electricity water- heater controller which can heat in the fixed time and display time and temperature in real-time.
 This paper introduces firstly the overall composition of the system, and then describes its two parts of hardware and software. The interaction between the whole structure and every module are described in the hardware. For the real-time clock-calendar chip PCF8563, their internal structures and external characteristics are introduced further. The software gives the graph of the procedure flow and adopts module design; several separate sub-modules are divided under the main program module. The digital filter methods are also adopted in order to get rid of the interfere of the random sharp pulses. Then the fundamental algorithm is described. Finally the summary of the system is given.
 
Keywords：single-chip microcomputer, temperature sensor, multi-function, water heater