【正文】 煙臺南山學院畢業(yè)設計（論文） 太陽能 LED交通警示板設計 摘 要 本設計采用軟硬件結合的方式實現(xiàn)，硬件電路主要包括：充電電路（帶充電保護功能）、放電保護電路、傳感電路、計數(shù)與顯示電路、穩(wěn)壓電路、 A/D 轉(zhuǎn)換電路、太陽能光伏板自動跟蹤控制系統(tǒng)七個模塊。 AT89S52 單片機是整個系統(tǒng)的核心部件，通過軟件控制多個硬件電路的執(zhí)行。在編程時根據(jù)模塊化的設計思路，采用 C51 語言來編寫程序，主要包括：晝夜的判斷、白天時通過車輛的計數(shù)并用 LED 動態(tài)顯示、夜間警示 LED 閃爍、防瞬時光照、控制電機跟蹤、恢復電機到初始位置等模塊。 設計中實現(xiàn)了白天計數(shù)，晚上 閃爍，在光控開關控制下，白天開啟、晚上關閉的功能，以及防閃電、車燈干擾的功能，并加有過充 、 過放保護裝置。除上述發(fā)揮部分外，又新增兩個功能： 將太陽能光伏板安裝在電機上，白 天時通過控制電機旋轉(zhuǎn)來跟蹤太陽，充分利用太陽能，對電池進行充電； 黑夜到來時，將電機復位到初始狀態(tài)，第二天 重 新對太陽進行跟蹤。 關鍵字 ： 充電 ， 保護 ， 單片機 ， 計數(shù)顯示 The LED Solar Traffic Warning Board Design Abstract This design uses the way realization which the software and hardware unifies, the hardware electric circuit mainly includes: The charging circuit (belt charge protection function), the electric discharge protection circuit, the sensing circuit, the counting and the display circuit, the voltagestabilizer circuit, the A/D switching circuit, the solar energy light bend down the board automatic following control system seven modules. The AT89S52 monolithic integrated circuit is the overall system core part, controls many hardware electric circuit through the software the execution. When programming acts according to modular the design mentality, uses the C51 language to pile the procedure, mainly includes: When diurnal judgment, daytime through the vehicles counting and with the LED dynamic demonstration, at night police shows the LED twinkle, guards against the instantaneous illumination, the control electrical machinery track, restores the electrical machinery to modules and so on initial point. In the design realized the daytime to count, evening glittered, controlled under the switch control in the light, daytime opened the function which, the evening closed, as well as guarded against the function which the lightning, the headlight disturbed, and Canada had has imitated has put the protective device. Besides above display part, also increases two functions: Bends down the board the solar energy light to install on the electrical machinery, when daytime tracks the sun through control electrical machinery revolving, uses the solar energy fully, carries on the charge to the battery； When dark night arrivals, repositions the electrical machinery to the original state, second days carry on the track again to the sun. Key words: Charge， Protection， Monolithic integrated circuit 目 錄 第 1 章 緒 論 ................................................................................................................ 1 設計的目的和意義 .................................................................................................. 1 設計任務與要求 ...................................................................................................... 1 第 2 章 方案設計選擇 .................................................................................................. 2 第 3 章 系統(tǒng)設計 .......................................................................................................... 4 系統(tǒng)硬件設計 .......................................................................................................... 4 充電電路（帶充電保護功能） ........................................................................... 4 放電保護電路 ....................................................................................................... 5 傳感電路 ............................................................................................................... 6 計數(shù)、顯示電路 ................................................................................................... 7 穩(wěn)壓電路 ............................................................................................................... 8 A/D 轉(zhuǎn)換電路 …………………………………………………………………………………………………………………….9 太陽能光伏板自動跟蹤控制系統(tǒng) ..................................................................... 10 系統(tǒng)軟件設計 ........................................................................................................ 12 晝夜判別 ............................................................................................................. 12 白天時段流程圖 ................................................................................................. 13 黑夜時段流程圖 ................................................................................................. 15 第 4 章 系統(tǒng)調(diào)試 ........................................................................................................ 17 充電電路部分 ........................................................................................................ 17 放電保護電路部分 ................................................................................................ 17 計數(shù)、顯示電路 .................................................................................................... 17 穩(wěn)壓電路 ................................................................................................................ 17 太陽能光伏板自動跟蹤控制系統(tǒng) ........................................................................ 17 總系統(tǒng)運行調(diào)試 .................................................................................................... 18 結 論 ............................................................................................................................ 19 致 謝 ............................................................................................................................ 20 參考文獻 ...................................................................................................................... 21 附錄 A 具體程序 .......................................................................................................... 22 附錄 B 總原理圖 .......................................................................................................... 29 煙臺南山學院畢業(yè)設計（論文） 第 1 頁 第 1 章 緒 論 設計的目的和意義 太陽能 LED 交通警示板具有不用電、節(jié)能、快閃等