【正文】 動化進(jìn)程，提高醫(yī)護(hù)質(zhì)量。首先通過液位傳感器檢測信號，然后將檢測到的信號送給單片機(jī)進(jìn)行處理，通過數(shù)碼管和報(bào)警裝置，將床位信息顯示在監(jiān)控室，然后由護(hù)理人員對具體情況進(jìn)行處理。單片機(jī)進(jìn)入主程序后，開始以查詢的方式檢測轉(zhuǎn)換的數(shù)據(jù)，并將相應(yīng)的數(shù)值通過數(shù)碼管顯示輸出。 單片機(jī)啟動 ，開始監(jiān)測工作。 3 紅 外 對 射 型 傳 感 器報(bào) 警 裝 置單片機(jī)處理系統(tǒng) L E D 顯 示鍵 盤 輸 入L E D 顯 示控 制 輸 入 圖 液位監(jiān)測報(bào)警系統(tǒng)方案二框圖 方案一與方案二有很多相似之處，兩個設(shè)計(jì)都運(yùn)用到了單片機(jī)，用到了傳感器，運(yùn)用了 LED 顯示管，而且在功能方面都很相似。因此，從設(shè)計(jì)和經(jīng)濟(jì)的角度講，我們組采用了方案二。發(fā)光二極管和光敏二極管分別安裝于“警戒”液位（由醫(yī)護(hù) 人員根據(jù)實(shí)際情況設(shè)定）兩側(cè)，處于對射狀態(tài)。 5 圖 AT89C52 引腳 AT89C52 主要性能參數(shù) 全 靜態(tài)操作： OHz 一 24MHz 3 個 16 位定時／計(jì)數(shù)器 同時， AT89C52 可降至 OHz 的靜態(tài)邏輯 操作，并支持兩種軟件可選的節(jié)電工作模式。數(shù)碼管的 A、 B、 C、 D、E、 F、 G 和 DP 分別與單片機(jī)的 —— 相連。本次課程設(shè)計(jì)中的四位數(shù)碼管與單片機(jī)的連接電路如圖，其選通情況如表 3— 3： 圖 LED信息顯示模塊電路圖 表 3— 3：數(shù)碼管選位情況表 C B A 選位情況 0 0 0 0 0 0 Y0 輸出高電平即第 1 位被選中 7 0 0 1 0 0 1 Y1 輸出高電平即第 2 位被選中 0 1 0 0 1 0 Y2 輸出高電平即第 3 位被選中 0 1 1 0 1 1 Y3 輸出高電平即第 4 位被選中 控制輸入模塊 本模塊有 2 個獨(dú)立按鍵，一個是復(fù)位按鍵，另一個為解除報(bào)警按鍵，接在 口。如果按下 口外接的按鈕，則報(bào)警停止，顯示也熄滅，表示已有醫(yī)護(hù)人員對信息進(jìn)行處理。程序流程圖如圖 。============================================ MAIN: JB , BED2 SETB MOV 6CH, 1 BED2: JB , BED3 SETB MOV 6DH, 2 BED3: JB , BED4 SETB MOV 6EH, 3 BED4: JB , HERE SETB MOV 6FH, 4 。============================================ DELAY2:MOV R7, 200 L2: DJNZ R7, L2 RET LEDTAB: DB 0C0H, 0F9H, 0A4H, 0B0H, 99H, 0FFH END 15 附錄 2： 相關(guān)設(shè)計(jì)軟件 [1]. Keil uVision2 程序編輯軟件 [2]. ISIS 7 Professional 仿真軟件 [3]. Protel 99 SE 電路原理圖 設(shè)計(jì)，印制電路板設(shè)計(jì) 軟件 16 為你提供優(yōu)秀的畢業(yè)論文參考資料，請您刪除以下內(nèi)容， O(∩_∩)O謝謝?。?！ 2 Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the sevenday Chinese 為你提供優(yōu)秀的畢業(yè)論文設(shè)計(jì)參考資料，請您刪除一下內(nèi)容，O(∩_∩)O謝謝?。?！ National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may bee more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and acmodation prices, with the possibility that there will be no rooms available. It is also mon that you39。s misery, the cow told him to turn its hide into a pair of shoes after it died. The magic shoes whisked Niulang, who carried his two children in baskets strung from a shoulder pole, off on a chase after the empress. The pursuit enraged the empress, who took her hairpin and slashed it across the sky creating the Milky Way which separated husband from wife. But all was not lost as magpies, moved by their love and devotion, formed a bridge across the Milky Way to reunite the family. Even the Jade Emperor was touched, and allowed Niulang and Zhinu to meet once a year on the seventh night of the seventh month. This is how Qixi came to be. The festival can be traced back to the Han Dynasty (206 BCAD 220). Traditionally, people would look up at the sky and find a bright star in the constellation Aquila as well as the star Vega, which are identified as Niulang and Zhinu. The two stars shine on opposite sides of the Milky Way. Customs In bygone days, Qixi was not only a special day for lovers, but also for girls. It is also known as the Begging for Skills Festival or Daughters39。s Day! in shops, hotels and restaurants. But few young women will mark the festival with their boyfriends, or take part in traditional activities to pray for cleverness. A largescale of exhibition on the Silk Road opened to the public in the National Museum on Thursday. The exhibition displays more than 400 18 treasures from Shaanxi province, Gansu province and 14 other regions. It is largest scale exhibition that shows the history of the Silk Road in recent years. As APEC is going on in Beijing, the exhibit aims to show the world this brilliant section of history. The Silk Road is a series of trade and cultural