【正文】
功能的運(yùn)輸車,AGV 一般以電池為動(dòng)力 ,也有用非接觸能量傳輸系統(tǒng)--CPS (Contactless Power System)為動(dòng)力的。自動(dòng)引導(dǎo)車原配置的鎘鎳蓄電池及充電站均采用進(jìn)口設(shè)備,在維護(hù)和保養(yǎng)上具有一定不便,現(xiàn)在選用國(guó)營(yíng)第七五五廠生產(chǎn)的鎘鎳蓄電池,通過(guò)一個(gè)時(shí)期的實(shí)際運(yùn)行比較,發(fā)現(xiàn)國(guó)產(chǎn)電池在性能上優(yōu)于進(jìn)口電池,主要表現(xiàn)為 AGV 自動(dòng)引導(dǎo)車的運(yùn)行時(shí)間延長(zhǎng),原運(yùn)行 1 小時(shí)左右(即放出 10%容量)即返回充電站進(jìn)行充電,現(xiàn)在運(yùn)行時(shí)間超過(guò) 1 個(gè)半小時(shí),由此可見(jiàn)國(guó)產(chǎn)蓄電池在放電特性上優(yōu)于進(jìn)口電池。這種電池以鉛作負(fù)極,二氧化鉛作正極,用硫酸做電解液。鎳鎘電池的放電電壓根據(jù)其放電裝置有所差異,每個(gè)單元電池(Cell)大約是 ,電池容量單位為 Ah(安時(shí))、mAh(毫安時(shí)),放電終止電壓的極限值稱為”放電終止電壓” ,鎳鎘電池的放電終止電壓 (cell 為每一單元電池)。過(guò)充電壓愈高,危險(xiǎn)性也跟著愈高。鋰電芯放電時(shí)也要有電壓下限。但是由于電池的可接受電流能力是隨著充電過(guò)程的進(jìn)行而逐漸下降的,充電到最后電流多用于電解水產(chǎn)生氣體。 涓流充電法在充電過(guò)程中充電電流小于 倍率時(shí)稱為涓流充電,就是電流很小的充電方式。、最高電壓控制法一般用于恒流充電,只需設(shè)定一個(gè)電壓值,在充電過(guò)程中當(dāng)電池電壓達(dá)到設(shè)定值時(shí)即認(rèn)為電池己充滿,此時(shí)停止充電。具體操作方法為:在系統(tǒng)主菜單界面下觸摸“快充”按鍵,進(jìn)入快充界面如圖 31 所示(快速充電簡(jiǎn)稱“快充” ): 圖 31 快充界面在快充狀態(tài)下,充電裝置啟動(dòng)方式分手動(dòng)啟動(dòng)方式和自動(dòng)啟動(dòng)方式,具體操作:在快充參數(shù)設(shè)置菜單下輕輕觸摸“手動(dòng)” 、 “自動(dòng)”按鈕即可轉(zhuǎn)換。從開(kāi)始的恒流充電到后來(lái)的定壓充電,充電結(jié)束這一過(guò)程全部由控制中心 PLC 來(lái)輕松完成而你只需輕輕觸摸按鈕即可。河南機(jī)電高等??茖W(xué)校畢業(yè)論文10活化運(yùn)行模式里面共有三個(gè)工作階段:恒流放電階段、靜止擱置階段和均衡充電階段。智能充電設(shè)備重新回到待機(jī)狀態(tài)并給上位機(jī)報(bào)“待機(jī)”信號(hào)(均充) 。如果采取以上措施還不能夠排除故障原因請(qǐng)馬上與制造商聯(lián)系。圖 38 歷史記錄圖 39 快充記錄河南機(jī)電高等專科學(xué)校畢業(yè)論文14圖 310 活化記錄圖 311 均充記錄 圖 312 放電記錄 上位機(jī)接點(diǎn)信號(hào)圖 本智能充電站給上位機(jī)提供待機(jī)、快充、充滿、故障等常開(kāi)干接點(diǎn)信號(hào)。全波整流使交流電的兩半周期都得到了利用。為了節(jié)約能量,整流電路可以根據(jù)充電電池的性能實(shí)時(shí)調(diào)節(jié)整流輸出,達(dá)到電壓有效利用的效果。采用自動(dòng)定位系統(tǒng)定位于智能充電站站臺(tái),采用快速充電模式進(jìn)行充電,全過(guò)程保持與上位機(jī)和 AGV 自動(dòng)引導(dǎo)車的通信。打開(kāi)前門,合上相應(yīng)的斷路器開(kāi)關(guān) QF 和面板上的開(kāi)關(guān) AN,智能充電站自檢后觸摸屏進(jìn)入” 系統(tǒng)主畫面 ”,如圖 19 所示: 圖 44 系統(tǒng)主界面、充電電流、充電電壓采集 帶程序充電電流的采集只需在主回路中接入一合適的分流器,在本設(shè)計(jì)中選用的是100A75mV。因此,需要準(zhǔn)確、及時(shí)而又可靠地判斷電池終止放電,以便采取適當(dāng)?shù)目刂坪凸芾矸椒?,避免電池出現(xiàn)過(guò)充。初始化對(duì)整個(gè)充電過(guò)程非常重要,是充電進(jìn)行的基礎(chǔ)。此外,隨著電池使用年限的增長(zhǎng),電池的荷電狀態(tài)以及可接受充電電流存在一定的差異。(2)充放電裝置一體化本文所設(shè)計(jì)的充電機(jī)具有放電功能,在蓄電池生產(chǎn)和使用過(guò)程中,為了保證蓄電池的性能,確保系統(tǒng)安全,必須對(duì)蓄電池進(jìn)行放電,充放電功能集中在一起已成為趨勢(shì),今后應(yīng)對(duì)充放電一體化裝置作進(jìn)一步的研究。附錄27附 錄一附錄28附錄29請(qǐng)您刪除一下內(nèi)容,O(∩_∩)O 謝謝!??! Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the sevenday Chinese 請(qǐng)您刪除一下內(nèi)容,O(∩_∩)O 謝謝?。。ational 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 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 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 transmission routes that were central to cultural interaction through regions of the Asian continent. It connected the West and East by linking traders, merchants, pilgrims, monks, soldiers, nomads, and urban dwellers from China and India to the Mediterranean Sea during various periods of time. I met my dear hubby in 2022 the second year I was in my school and it was the first year when he came here. We became colleagues. And there was nothing special happening during that year. He was just a kind and humble brother graduated from the same 附錄30college as me. But we did not know each other till he became my colleague and his office desk was just in front of me. There was only a glass between us. So actually we could see each other when we both look up. But it is not the main reason that really draws us close. How we bee close to each other was something seems quite natural. We went out to play badminton with other colleagues and we sometimes chatted for a while. He is a man of few words but somehow sometimes will say something really humorous. Then one day, to my great surprise, I found a pot of beautiful flower on my desk. It was just the flower I had talked about with my colleague the other day, and I thought it was her who put the flower there. But the truth is not. It was the humble guy sitting in front of me. He just simply said ,”well, I caught sight of this flower and thought that it’s beautiful and you may like it”. I wonder why I was moved because of these simple words and present. Maybe it is the sincerity and the true self that impress me. I thanked him and some colleagues walked past my desk would appreciate the beautiful flower and they noticed that something romance happened there. Then later on, there were some little surprises once in a while. Once, there was something wrong with my drawer and I had plained about it unconsciously. And he fixed it for me. Then the other day, he placed several pink diamond roses beside the flower with a piece of paper saying” I love you more than I can say! Diamond stands for marriage, rose stand for love. I hope you are mine, bee my wife. You are the only girl who I really want to spend the rest of my life to stand by.” Although there were some grammar errors but I got what he meant. He meant so clear and so direct. And actually, I accepted him some days earlier. I was just waiting for him to break the ice. So finally, the mon interests and the mon understanding brought us together. Some people say the relationship and the feeling will change after getting hitched. You will find that love is no longer strong and there is always lack of passion and what’s worse you may find out many bad habits of your partner, which never appear when you are first in love before the marriage. It see