【正文】 d the exact location of the vehicle to enter, record the number of vehicles, the vehicle left, reducing the number of vehicles. Vehicle access instructions can be pletely controlled by the PLC as central to treatment, indicating available parking space prices are not high digital display. This design mainly elaborated parking structure, working principle, working conditions. The use of programmable logic controller (PLC) for the car out of the parking lot to manage the program, this program greatly improves the work efficiency. This design uses PLC control parking space display, to achieve fully automatic operation. Use of export, import vehicle detection sensors to detect vehicle access and use addition and subtraction counter 32 counts, so as to achieve automatic control. Keywords: parking， PLC controller， counters， digital pipe 河南城建學(xué)院本科畢業(yè)設(shè)計(jì)（論文） 目錄 III 目錄 摘要 .................................................................................................................................. I Abstract..........................................................................................................................II 1 緒論 ........................................................................................................................... 1 課題研究的目的和意義 ....................................................................................... 1 國(guó)內(nèi)外研究現(xiàn)狀 .................................................................................................. 1 研究的主要內(nèi)容 .................................................................................................. 2 2 控制系統(tǒng)整體方案設(shè)計(jì) ............................................................................................... 4 結(jié)構(gòu)及基本原理 .................................................................................................. 4 控制系統(tǒng)方案的確定 ........................................................................................... 5 PLC 控制系統(tǒng)和其它控制系統(tǒng)的比較 ......................................................... 5 管理模式分析 ..................................................................................................... 7 控制需求分析 ..................................................................................................... 8 平面停車場(chǎng)控制需求描述 .................................................................................. 9 停車場(chǎng)入口控制系統(tǒng) ................................................................................. 9 停車場(chǎng)出口控制系統(tǒng) ............................................................................... 10 車位狀態(tài)監(jiān)控系統(tǒng) ................................................................................... 10 停車場(chǎng)管理系統(tǒng) ...................................................................................... 10 停車場(chǎng)管理監(jiān)控系統(tǒng)主要設(shè)備 ........................................................................... 10 3 停車場(chǎng)控制系統(tǒng)硬件設(shè)計(jì) .......................................................................................... 13 現(xiàn)場(chǎng)控制器 ...................................................................................................... 13 PLC 的硬件結(jié)構(gòu) ....................................................................................... 13 PLC 的工作方式 ....................................................................................... 13 PLC 的特點(diǎn) .............................................................................................. 14 主控制器及收費(fèi)系統(tǒng)的選型 .............................................................................. 15 收費(fèi)系統(tǒng) ................................................................................................. 17 IC 卡和 ID 卡系統(tǒng)的比較 .......................................................................... 18 出入庫(kù)模塊硬件設(shè)計(jì)及選型 .............................................................................. 19 讀卡器： .......................................................................................................... 20 出入口控制系統(tǒng)相關(guān)設(shè)備 ......................................................................... 21 七段數(shù)碼管 .............................................................................................. 21 ....................................................................................................... 22 I/O 分配表 ................................................................................................ 22 4 停車場(chǎng)控制系統(tǒng)軟件設(shè)計(jì) .......................................................................................... 24 河南城建學(xué)院本科畢業(yè)設(shè)計(jì)（論文） 目錄 IV 停車場(chǎng)控制系流程圖 ........................................................................................ 24 .............................................................................................................. 25 設(shè)計(jì)總梯形圖及指令表：（見附錄 A、 B） ........................................................ 26 5 仿真和調(diào)試 ............................................................................................................... 27 .......................................................................................................... 27 .......................................................................................................... 27 結(jié)論 ............................................................................................................................... 28 參考文獻(xiàn) ........................................................................................................................ 29 致謝 ............................................................................................................................... 30 附錄 A ........................................................................................................................... 31 附錄 B ........................................................................................................................... 40