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基于web的社區(qū)服務(wù)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)-資料下載頁

2025-06-27 18:44本頁面
  

【正文】 spatcher, etc., design and set out the intellectual administrative system of the attitude. Manage and utilize the means, such as wireless traffic technology, electronic technology puter network technology, data base technology, etc., intelligently in public transport, realized the public transit dispatcher intelligently, modernization. The dispatcher of the public transport is a core of the public traffic system of the intelligence. It uses the theory and method of the system engineering, modern new and high technology, such as prehensive munication, information, controlling, puter, network, etc., According to realtime flow of passengers information, vehicle travel direction information, present position information of vehicle and vehicle present destination time information, etc.. Through the puter gathers the dates, control, manage manding in realtime. The ones that utilized LED to show the approximate position of the vehicle, travel direction at present, realize to public transit vehicle were managed intelligently. The controller can carry on the departure time and spacing interval of the arrangement vehicle rationally sequentially, and examine the bus driver. Thus make the public transit vehicle operate the orderly, steady, highefficient, coordination, swifter, more convenient, realize the rational distribution of resources, have improved the overall service level, economic benefits and social benefit of public transit system。 it makes the traffic administration from changing passively in the initiative direction. BRamp。nbsp。amp。nbsp。amp。nbsp。amp。nbsp。amp。nbsp。 BRamp。nbsp。KEY WORDS: intelligently in public transport, SQLSERVER2000, JSPBRBR公交系統(tǒng)具有運(yùn)載量大、運(yùn)送效率高、能源消耗低、相對(duì)污染小、運(yùn)輸成本低等優(yōu)點(diǎn),它已經(jīng)被世界各國公認(rèn)為解決大中城市交通問題的最佳策略,同時(shí)也是城市賴以生存的重要基礎(chǔ)設(shè)施之一。但隨著經(jīng)濟(jì)的快速發(fā)展,城市的機(jī)動(dòng)車輛不斷增加,同時(shí)又因?yàn)楣坏氖孢m性差,等候時(shí)間長等因素,導(dǎo)致城市交通流量不斷加大,交通事故頻發(fā),交通擁擠程度正在日益加劇?,F(xiàn)行的公交企業(yè)運(yùn)營調(diào)度管理工作也存在很多問題:調(diào)度主要靠人力,總體技術(shù)方案落后;制定運(yùn)營計(jì)劃主要依靠經(jīng)驗(yàn),缺少科學(xué)與合理性;運(yùn)營調(diào)度管理實(shí)時(shí)性很差,運(yùn)營計(jì)劃的調(diào)整周期太長;運(yùn)營調(diào)度管理人員素質(zhì)不高,不適合新技術(shù)的應(yīng)用,等等。這些因素制約著調(diào)度工作的優(yōu)化,給我市的公交系統(tǒng)帶來很多問題。BRBR本文的目的在于使汽車銷售企業(yè)中的車輛檔案管理成為企業(yè)營運(yùn)過程中一大亮點(diǎn),為管理者進(jìn)行管理決策和進(jìn)行各種經(jīng)營活動(dòng)提供了重要的依據(jù),為后續(xù)的工作打下良好的基礎(chǔ)。開發(fā)此系統(tǒng)使得檔案管理人員不需要花費(fèi)大量的時(shí)間用于在各個(gè)部門之間的奔走,縮短了檔案資料傳送的時(shí)間,從而避免了大量的重復(fù)勞動(dòng),提高了工作效率。在整個(gè)開發(fā)過程中有效的結(jié)合了JSP編程和sql server2000以及web技術(shù)。系統(tǒng)的可移植性決定了它可以適應(yīng)不同的環(huán)境,符合企業(yè)在市場(chǎng)中的變化,在不同的環(huán)境中進(jìn)行適當(dāng)?shù)恼{(diào)整便可以更方便使用了。 BRamp。nbsp。如果將本課題的研究成果與組中其他成員的項(xiàng)目進(jìn)行良好的連接,做好接口的全部工作,將成為汽車銷售企業(yè)中完整的系統(tǒng)。便可以用于完成汽車整個(gè)銷售過程的進(jìn)銷存管理、檔案管理(客戶檔案和車輛檔案)、信貸管理等等。這樣將大大改善各個(gè)部門消息的瓶頸,使得信息化管理真正的滲透到整個(gè)企業(yè)管理的所有環(huán)節(jié)。BR在系統(tǒng)投入使用后,還要將企業(yè)信息化建設(shè)、人員培訓(xùn)、企業(yè)管理水平等因素提上日程,這樣才能真正發(fā)揮管理系統(tǒng)的強(qiáng)大功能,使得企業(yè)效率更上一個(gè)臺(tái)階。BRBRBRBRBRBRBRBR span class=39。Lxh76139。/span /PP/Pp摘amp。nbsp。 要br /隨著經(jīng)濟(jì)的發(fā)展和現(xiàn)代工業(yè)建設(shè)的迅速崛起,供電系統(tǒng)的設(shè)計(jì)越來越全面、系統(tǒng),工廠用電量迅速增長,對(duì)電能質(zhì)量、技術(shù)經(jīng)濟(jì)狀況、供電的可靠性指標(biāo)也日益提高,因此對(duì)供電設(shè)計(jì)也有了更高、更完善的要求。設(shè)計(jì)是否合理,不僅直接影響基建投資、運(yùn)行費(fèi)用和有色金屬的消耗量,也會(huì)反映在供電的可靠性和安全生產(chǎn)方面,它和企業(yè)的經(jīng)濟(jì)效益、設(shè)備人身安全密切相關(guān)。br /本設(shè)計(jì)討論的是220KV變電站的設(shè)計(jì)。220KV變電站屬于高壓網(wǎng)絡(luò),該地區(qū)變電所所涉及方面多,考慮問題多,分析變電所擔(dān)負(fù)的任務(wù)及用戶負(fù)荷等情況,選擇所址,利用用戶數(shù)據(jù)進(jìn)行負(fù)荷計(jì)算,確定用戶無功功率補(bǔ)償裝置。同時(shí)進(jìn)行各種變壓器的選擇,從而確定變電站的接線方式,再進(jìn)行短路電流計(jì)算,選擇送配電網(wǎng)絡(luò)及導(dǎo)線,進(jìn)行短路電流計(jì)算。選擇變電站高低壓設(shè)備,為變電站平面及剖面圖提供依據(jù),最后進(jìn)行防雷接地以及保護(hù)、配電裝置設(shè)計(jì)。amp。nbsp。amp。nbsp。amp。nbsp。 br /關(guān)鍵詞:變電站,短路計(jì)算,設(shè)備選擇。br /br /THE 220KV TRANSFORMER SUBSTATION DESIGN OF NORTH TAIYUAN LOCALbr /ABSTRACTbr /Along with the economic development and the modern industry developments of quick rising, the design of the power supply system bee more and more pletely and system. Because the quickly increase electricity of factories, it also increases seriously to the dependable index of the economic condition, power supply in quantity. Therefore they need the higher and more perfect request to the power supply. Whether Design reasonable, not only affect directly the base investment and circulate the expenses with have the metal depletion in colour metal, but also will reflect the dependable in power supply and the safe in many facts. In a word, it is close with the economic performance and the safety of the people. span class=39。Hjl61339。/span br /The design is refer to 220kV substation design. The region of 220voltage effect many fields and should consider many problems. Analyse change to give or get an electric shock a mission for carrying and customers carries etc. circumstance, choose the address, make good use of customer data proceed then carry calculation, ascertain the correct equipment of the customer. At the same time following the choice of every kind of transformer, then make sure the line method of the transformer substation, then calculate the shortcircuit electric current, choosing to send together with the electric wire method and the style of the wire, then proceeding the calculation of shortcircuit electric current, at last choose equipment, then mine and the protection of earth and distribution device.br /br /Key Words: Substation,Short Circuit Calculation,Equipment Selection br / 220KV母線amp。nbsp。amp。nbsp。amp。nbsp。 38br / 110KV母線amp。nbsp。amp。nbsp。amp。nbsp。 38br / 10KV母線的選擇amp。nbsp。amp。nbsp。amp。nbsp。 39br / 變壓器220KV側(cè)引接線的選擇與校驗(yàn)amp。nbsp。amp。nbsp。amp。nbsp。 40br / 變壓器110KV側(cè)引接線的選擇與校驗(yàn)amp。nbsp。amp。nbsp。amp。nbsp。 41br / 變壓器10KV側(cè)引接線的選擇與校驗(yàn)amp。nbsp。amp。nbsp。amp。nbsp。 42br /第7章 防雷接地設(shè)計(jì)amp。nbsp。amp。nbsp。amp。nbsp。 44br / 防雷設(shè)計(jì)amp。nbsp。amp。nbsp。amp。nbsp。 44br / 防雷設(shè)計(jì)原則amp。nbsp。amp。nbsp。amp。nbsp。 44br / 避雷器的選擇amp。nbsp。amp。nbsp。amp。nbsp。 44br / 避雷針的配置amp。nbsp。amp。nbsp。amp。nbsp。 47br / 接地設(shè)計(jì)amp。nbsp。amp。nbsp。amp。nbsp。 48br / 接地設(shè)計(jì)的原則amp。nbsp。amp。nbsp。amp。nbsp。 48br / 接地網(wǎng)型式選擇及優(yōu)劣分析amp。nbsp。amp。nbsp。amp。nbsp。 49br /第8章 繼電保護(hù)的配備amp。nbsp。amp。nbsp。amp。nbsp。 50br / 變壓器繼電保護(hù)配置amp。nbsp。amp。nbsp。amp。nbsp。 50br / 母線保護(hù)amp。nbsp。amp。nbsp。amp。nbsp。 50br /致謝amp。nbsp。amp。nbsp。amp。nbsp。 52br /br /參考文獻(xiàn)br /[1] [M].中國電力出版社,2004br /[2] [M].科學(xué)出版社,2002br /[3] [M].中國電力出版社,1998 p class=39。Hjl61339。/p br /[4] [M].中國電力出版社,1999br /[5] [M].中國水利水電出版社,2001br /[6] Network munications Fechonlogy Ata Elahi[M].科學(xué)出版社,2002br /[7] [M].中國電力出版社,2002br /[8] [M].高等教育出版社,2004br /[9] 劉吉來,[M].中國水利水電出版社,2004br /[10] [M].中國電力出版社,2005br /[11] Kuffel Eundemnetals[M] newamp。nbsp。 York, pergamon press,1984br /[12] [M].重慶大學(xué)出版社,2003br /[13] Naildu MS. etamp。nbsp。 al. Hingvoltage Engineering[M]. Newamp。nbsp。 Delhi Tata McGrawHill, Publ.,1982br /[14] [M].華中科技大學(xué)出版社,2002
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