【正文】 y美麗天使精品論文 第 i 頁 目 錄 前 言 .........................................................................................................................................................1 摘 要 ......................................................................................................................................................... I ABSTRACT .................................................................................................................................................. II 目 錄 ......................................................................................................................................................... I 開發(fā)背景 ...............................................................................................................................................1 基于單片機(jī)的電梯控制模型主要特色 .....................................................................................2 電梯控制方案比較 .......................................................................................................................2 任務(wù)概述 ...............................................................................................................................................3 第二章 設(shè)計的整體方案 ..........................................................................................................................4 控制系統(tǒng)硬件組成 ..............................................................................................................................4 89C51 介紹 ....................................................................................................................................4 1602 液晶顯示介紹 ...................................................................................................................6 壓敏電阻介紹 ............................................................................................................................7 系統(tǒng)結(jié)構(gòu)圖 ...........................................................................................................................................9 系統(tǒng)詳解 ...............................................................................................................................................9 供電電源模塊 ........................................................................................................................... 10 轎廂位置檢測模塊 ................................................................................................................... 10 重量檢測模塊 ........................................................................................................................... 10 電機(jī)控制模塊 ......................................................................................................................... 10 轎內(nèi)外呼梯信號處理 .............................................................................................................11 轎內(nèi)外呼梯信號顯示模塊 .......................................................................................................11 中斷信號處理 ..........................................................................................................................11 轎廂開關(guān)門 ..............................................................................................................................11 第三章 系統(tǒng)硬件設(shè)計 ............................................................................................................................. 12 呼叫及選層 ........................................................................................................................................ 12 顯示功能模塊的實現(xiàn) ....................................................................................................................... 14 供 電模塊 ............................................................................................................................................ 14 單片機(jī)復(fù)位電路 ............................................................................................................................... 15 位置檢測模塊 ................................................................................................................................... 16 超重檢測模塊與超重報警 ............................................................................................................... 16 電機(jī)上下轉(zhuǎn)設(shè)計 ............................................................................................................................... 18 轎廂開關(guān)門設(shè)計 ............................................................................................................................... 18 第四章 系統(tǒng)軟件設(shè)計 ............................................................................................................................... 19 主流程圖 ............................................................................................................................................ 19 安全等待流程 ................................................................................................................................... 20 故障處理流程 ................................................................................................................................... 21 轎廂內(nèi)要梯處理流程 ....................................................................................................................... 23 轎廂外要梯處理流程 ....................................................................................................................... 24 電梯關(guān)開門處理 ............................................................................................................................... 25 顯示輸出 ............................................................................................................................................ 26 鍵盤掃描 ............................................................................................................................................ 30 第五章 系統(tǒng)可靠性分析及抗干擾措施 ..........................................................