【正文】 ..............................................................................10第三章 糧庫監(jiān)控系統(tǒng)的總體規(guī)劃 ................................................................................................10 系統(tǒng)總體結(jié)構(gòu)規(guī)劃 ..........................................................................................................11 系統(tǒng)各部分功能 ..............................................................................................................11 上位機(jī)功能 ...........................................................................................................11 下位機(jī)功能 ..........................................................................................................11 系統(tǒng)的工作過程 ..............................................................................................................11第四章 下位機(jī)系統(tǒng)的設(shè)計 ..........................................................................................................12 CAN 節(jié)點(diǎn)的組成 .............................................................................................................12 CAN 節(jié)點(diǎn)主要器件介紹 .................................................................................................12 AT89S52 單片機(jī) ...............................................................................................12 CAN 控制器 SJA1000 器件 ............................................................................13 PCA2C250 器件 ..............................................................................................19 監(jiān)控節(jié)點(diǎn)的軟件設(shè)計 ......................................................................................................20 溫度檢測部分 ................................................................................................................26 傳感器介紹 ........................................................................................................26 溫度檢測的硬件設(shè)計 ........................................................................................28 軟件設(shè)計分析 ....................................................................................................28 使用 DS18B20 注意事項 ....................................................................................29 濕度檢測部分 ..............................................................................................................29 傳感器介紹 ........................................................................................................29 濕度測量硬件設(shè)計 ............................................................................................29 HS1101 測量濕度的原理分析 ...........................................................................30 焊接 HS1101 時注意事項 ..................................................................................31 蟲害檢測部分 ..............................................................................................................31 III 溫/濕度及蟲害控制部分 ............................................................................................31第五章 上位機(jī)系統(tǒng)的設(shè)計 ........................................................................................................33 CAN 通訊適配器的設(shè)計 ...................................................................................................33 EPP 簡介 .............................................................................................................33 CAN 適配器硬件設(shè)計 ......................................................................................34 CAN 適配器軟件設(shè)計 .........................................................................................35 上位機(jī)組態(tài)設(shè)計 ..............................................................................................................37 組態(tài)簡介 ............................................................................................................37 組態(tài)王的主要特點(diǎn) ............................................................................................37 組態(tài)王主要功能具體實(shí)現(xiàn) ................................................................................37 組態(tài)界面的具體設(shè)計 ........................................................................................41 遠(yuǎn)程管理控制部分設(shè)計 ....................................................................................42第六章 系統(tǒng)的可靠性設(shè)計及注意事項 ....................................................................................45 系統(tǒng)的可靠性設(shè)計 ..........................................................................................................45 系統(tǒng)的注意事項 ..............................................................................................................46 系統(tǒng)安裝注意事項 ..............................................................................................46 系統(tǒng)操作注意事項 ..............................................................................................47第七章 工作總結(jié)與研究展望 ......................................................................................................47 工作總結(jié) ...........................................................................................................................47 研究展望 ...........................................................................................................................48參考文獻(xiàn) ..........................................................................................................................................49致 謝 ............................................................................................................................................52附錄 ..................................................................................................................................................52附錄 A.......................................................................................................................................52A1 CAN 節(jié)點(diǎn)電路原理圖 .................................................................................................52A2 CAN 節(jié)點(diǎn)電路實(shí)物圖 ...................................................................................