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試卷代號：2633 中央廣播電視大學(xué)2014～2015學(xué)年度第一學(xué)期“開放?？啤逼谀┛荚? 軌道交通信號與通信系統(tǒng)試題 一、名詞配伍 1.信號機(jī)( ) 2．列車運(yùn)行自動控制系統(tǒng)(ATC)( ) 3．計算機(jī)聯(lián)鎖( ) 4．列車自動防護(hù)(ATP)子系統(tǒng)( ) 5．城市軌道交通專用通信系統(tǒng)( ) A.是利用計算機(jī)實(shí)現(xiàn)車站的聯(lián)鎖關(guān)系，用繼電電路作為計算機(jī)主機(jī)與室外信號機(jī)、轉(zhuǎn)轍機(jī)、軌道電路的接口設(shè)備，操作人員通過顯示器、鼠標(biāo)等設(shè)備實(shí)現(xiàn)對現(xiàn)場設(shè)備的控制和監(jiān)督。 B．是表達(dá)固定信號顯示所用的機(jī)具，用來防護(hù)站內(nèi)進(jìn)路，防護(hù)區(qū)間，防護(hù)危險地點(diǎn)，具有嚴(yán)格的防護(hù)意義。按防護(hù)用途的不同又可分為進(jìn)站、出站、進(jìn)路、調(diào)車、駝峰、遮斷、預(yù)告、復(fù)示等。 C．包括列車自動防護(hù)(AutOIIlatic Train Protection-ATP)、列車自動運(yùn)行(Automatic TrainOperation—ATO)及列車自動監(jiān)控(Automatjc Train supervison-ATs)三個系統(tǒng)。系統(tǒng)車控制中心，沿線各車站設(shè)計為區(qū)域性聯(lián)鎖，其設(shè)備放在控制站(一般為有岔路。列車上安裝有車載控制設(shè)備。 D．是一個既能傳輸語音信號，又能傳輸文字、數(shù)據(jù)和圖像等各種信息的綜合業(yè)務(wù)數(shù)字通信網(wǎng)。 E．即列車運(yùn)行超速防護(hù)或列車運(yùn)行速度監(jiān)督，是保證行車安全、防止列車進(jìn)入前方列車占用區(qū)段和防止超速運(yùn)行的設(shè)備，實(shí)現(xiàn)列車運(yùn)行安全間隔防護(hù)和超速防護(hù)。 二、單項(xiàng)選擇題 1．( )屬于ATS子系統(tǒng)，是ATC的核心。 A．車輛段信號設(shè)備 B．控制中心設(shè)備 C.車載ATC設(shè)備 D．車站及軌旁設(shè)備 2.要求注意或減速運(yùn)行的信號以及準(zhǔn)許按規(guī)定速度運(yùn)行的信號，都叫做( )。 A．進(jìn)行信號 B．禁止信號 C.停車信號 D．減速信號 3.辦理調(diào)車進(jìn)路與辦理列車進(jìn)路的原則相同，只是按壓調(diào)車進(jìn)路按鈕，其按鈕為( )。 A.白色 B．紅色 C．綠色 D．黃色 4．當(dāng)發(fā)生擠岔、跳信號、主燈絲斷絲等故障時，6502電氣集中控制臺有( )。 A．報警 B．聲光報警 C．切斷聲音報警 D．聲音報警 5．地面應(yīng)答器通常設(shè)置在信號機(jī)的旁側(cè)或者設(shè)置在一段需要降速的緩行區(qū)間的( )。 A.中間 B．終端 C.始端 D．始、終端 6．( )的精確測量是所有與速度有關(guān)的安全功能以及列車定位的先決條件。 A．列車速度和距離 B．列車速度 C．列車距離 D．列車定位 7.( )是目前線路能力利用效率更高的列車閉塞方式。 A.移動閉塞 B．固定閉塞 C．連續(xù)閉塞 D．分區(qū)閉塞 8.光通信系統(tǒng)中將傳輸中衰減了的光信號進(jìn)行再生放大，以利于繼續(xù)向前傳輸?shù)脑O(shè)備是( )。 A.光端機(jī) B．光纜 C.光中繼器 D．PCM復(fù)用設(shè)備 9.調(diào)度員可通過( )控制聯(lián)鎖設(shè)備，還可借助于設(shè)備顯示器上的對話框和鼠標(biāo)來輸入聯(lián)鎖指令，然后送到聯(lián)鎖設(shè)備中。 A．控制中心ATS B.時刻表系統(tǒng) C．速度碼系統(tǒng) D．間隔碼系統(tǒng) 10．兩路電源經(jīng)轉(zhuǎn)換后對各模塊供電，交流電源模塊采用參數(shù)穩(wěn)壓器穩(wěn)壓，直流電源模塊采用開關(guān)電源穩(wěn)壓，這是( )。 A．不間斷供電方式 B．分散穩(wěn)壓方式 C．集中與分散穩(wěn)壓相結(jié)合的方式 D．直接穩(wěn)壓方式 三、多項(xiàng)選擇題 1．與城市道路交通相比，城市軌道交通具有( )特點(diǎn)。 A．容量大 B．運(yùn)行準(zhǔn)時、迅速 C．安全 D．利于環(huán)境保護(hù) E．節(jié)省土地資源 2．透鏡式色燈信號機(jī)的每個燈位由( )組成。 A．燈泡 B．燈座 C．透鏡組 D．遮檐 E．背板 3．聯(lián)鎖設(shè)備分為( )。 A．繼電聯(lián)鎖 B．計算機(jī)聯(lián)鎖 C．自動聯(lián)鎖 D．接車聯(lián)鎖 E．發(fā)車聯(lián)鎖 4.ATC系統(tǒng)分類按結(jié)構(gòu)的不同，可分( )。 A．點(diǎn)式ATC系統(tǒng) B．自動ATC系統(tǒng) C．手動ATC系統(tǒng) D．連續(xù)式ATC系統(tǒng) E．間斷式ATC系統(tǒng) 5．構(gòu)成通信網(wǎng)的基本要素是( )。 A．終端設(shè)備 B．發(fā)射設(shè)備 C．傳輸設(shè)備 D．交換控制設(shè)備 E．計算機(jī)設(shè)備 四、判斷題 ( )L車輛段聯(lián)鎖設(shè)備前期采用計算機(jī)聯(lián)鎖，近來均采用6502電氣集中聯(lián)鎖。 ( )2.繼電器類型很多，但均由線圈和接點(diǎn)系統(tǒng)兩部分組成。 ( )3．進(jìn)路鎖閉指的是進(jìn)路排通、防護(hù)進(jìn)路的信號開放后，進(jìn)路上有關(guān)道岔不能轉(zhuǎn)換，有關(guān) 敵對信號不能開放。 ( )4.色燈信號機(jī)采用鐵路直絲信號燈泡，配套定焦盤式燈座，以及點(diǎn)燈和燈絲轉(zhuǎn)換裝置。 ( )5．ATO子系統(tǒng)能準(zhǔn)確合理地按照列車運(yùn)行最佳曲線控制列車運(yùn)行狀況，能夠非常方便地完成由ATO狀態(tài)轉(zhuǎn)換為人工駕駛狀態(tài)的過程。 ( )6．列車位置功能從ATP功能中接收到所有列車的位置和速度等詳細(xì)信息。 ( )7.西門子的CBTC系統(tǒng)是一個安全、可靠、先進(jìn)、適應(yīng)線性電機(jī)運(yùn)載、基于無線通信的列車運(yùn)行控制系統(tǒng)。 ( )8．不間斷供電系統(tǒng)又稱間斷電源或停電電源，是一種現(xiàn)代化電源設(shè)備。 ( )9．信號系統(tǒng)在車站、控制中心和車輛段不一定設(shè)置UPs裝置。 ( )10．智能電源屏按監(jiān)測系統(tǒng)的構(gòu)成可分為不間斷供電、分散穩(wěn)壓、集中與分散穩(wěn)壓相結(jié)合三種類型。 五、問答及分析題 1.城市軌道交通對信號系統(tǒng)的要求是什么? 2．簡述計算機(jī)聯(lián)鎖控制系統(tǒng)的聯(lián)鎖功能。 3．簡述列車定位的流程 參考答案 一、名詞配伍(每小題3分，共15分，將相應(yīng)名詞解釋的字母填入對應(yīng)的括號內(nèi)) 1．B 2．C 3．A 4．E 5．D 二、單項(xiàng)選擇題(每小題2分，共20分，將正確答案選項(xiàng)的字母填入題目后的括號內(nèi)) 1．B 2．A 3．A 4．B 5．D 6．A 7．A 8．C 9．A 10．B 三、多項(xiàng)選擇題(每小題3分，共15分，將正確答案選項(xiàng)的字母填入題目后的括號內(nèi)，多選少選不得分) 1．ABCDE 2．ABCDE 3．AB 4．AD 5．ACD 四、判斷題(每小題2分，共20分，將正確答案填入題目前的括號內(nèi)，正確打“√”，錯誤打“”) 1． 2． 3．√ 4．√ 5．√ 6． 7．√ 8． 9． 10． 五、問答及分析題(共30分，每小題10分) 1．城市軌道交通對信號系統(tǒng)的要求是什么? 城市軌道交通，尤其是地下鐵道因其固有的特點(diǎn)，對其信號系統(tǒng)提出了如下要求：安全性要求高；通過能力大；保證信號顯示；抗干擾能力強(qiáng)；可靠性高；自動化程度高；限界條件苛刻。 2．簡述計算機(jī)聯(lián)鎖控制系統(tǒng)的聯(lián)鎖功能。 計算機(jī)聯(lián)鎖控制系統(tǒng)的聯(lián)鎖功能包括如下幾點(diǎn)： (1)聯(lián)鎖邏輯運(yùn)算：接．收ATS或車站值班員的進(jìn)路命令，進(jìn)行聯(lián)鎖邏輯運(yùn)算，實(shí)現(xiàn)對道岔和信號機(jī)的控制 (2)軌道電路信息處理：處理列車檢測功能的輸出信息，以提高列車監(jiān)測信息的完整性； (3)進(jìn)路控制：設(shè)定、鎖閉和解鎖進(jìn)路； (4)道岔控制：解鎖、轉(zhuǎn)換和鎖閉道岔； (5)信號機(jī)控制：確定信號機(jī)的顯示。 3．簡述列車定位的流程。 列車定位流程可以描述為： (1)車載ATP啟動時，列車未定位，但是車載計算機(jī)單元的線路數(shù)據(jù)庫記錄有應(yīng)答器的位置。 (2)一旦列車連續(xù)經(jīng)過兩個應(yīng)答器，就初始化它的位置參數(shù)，這樣列車“已定位”。第一個應(yīng)答器初始化應(yīng)答器和查詢器天線的位置，但是列車不知道自己在軌道上的運(yùn)行方向；根據(jù)線路數(shù)據(jù)庫里應(yīng)答器的順序，第二個應(yīng)答器確定列車運(yùn)行方向。通過第二個應(yīng)答器后，列車位置可由測速電機(jī)和雷達(dá)測量。 (3)在兩個應(yīng)答器之間，已定位的列車位置參數(shù)得到更新，這都得益于測速電機(jī)和雷達(dá)的連續(xù)位移測量。當(dāng)經(jīng)過另外一個應(yīng)答器時，一列已定位的列車將調(diào)整它的位置參數(shù)，以便得到更加精確的位置。  請您務(wù)必刪除一下內(nèi)容，O(∩_∩)O萬分謝謝?。?！2015年中央電大期末復(fù)習(xí)考試小抄大全，電大期末考試必備小抄，電大考試必過小抄 Indonesia has emerged as a top vacation destination for Chinese this summer, along with Thailands Phuket island and the Maldives archipelago. Encouraged by growth in Chinese travelers to Indonesia, the government in Jakarta has recently relaxed its visa policy. Since June 10, Chinese tourists can enter Indonesia through nine appointed locations, including the Soekarno Hatta International Airport in Jakarta, the Ngurah Rai International Airport in Bali and the Kuala Namu International Airport in Medan, by just getting their passports stamped on arrival. Officially, it is called the "free-visa" scheme. The new policy also means Chinese tourists can save $35 on visa fees, which will likely make trips to Indonesia more alluring. While such an arrangement allows Chinese visitors to stay up to 30 days for the purpose of traveling, those seeking extensions will need to get paid visas from that countrys missions inBeijing,Shanghai,GuangzhouorHong Kong, according to an official at the Indonesia embassy in Beijing. Santo Darmosumarto, head of the embassys information, social and cultural section, says the new policy is aimed at strengthening people-to-people contacts between the two countries. Dai Yu, marketing director of Ctrip, a major Chinese online travel agency, says: "Weve seen a nearly 50 percent growth over the previous month in the number of Chinese tourists to Bali since the policy was announced." During his trip to China in March, Indonesian President Joko Widodo proposed that his country and China aim to increase two-way visits to a maximum of 10 million people in the next few years. The Indonesian government has set their sights on greeting 2 million Chinese tourists by the end of this year, according to the official. "The Indonesian government hopes that Indonesian nationals would also be given preferential treatment while visiting China," says Darmosumarto. In 2013, the number of Chinese tourists who visited Indonesia stood around 807,000. Last year, it increased to 959,000, he adds. Bali remains the most popular site among Chinese tourists. In February, more than 92,200 Chinese tourists made trips to Bali, ranking first among overseas visitors, the Bali Times reported. Last year, the island witnessed more than 586,000 arrivals from China, an increase of 51 percent over 2013. "Bali isnt just for sightseeing, but also for weddings, honeymoons, golf and many outdoor activities," says Fan Wenqing, a marketing executive at Garuda, Indonesias national airliner. Garuda offers three nonstop flights between Beijing and Bali, and four each week between Beijing and Jakarta. There are daily flights from Guangzhou, inGuangdongprovince, and Shanghai to Jakarta as well. It takes from six to eight hours on a nonstop flight to reach Indonesia from China. Indonesia is home to more than 17,000 islands. Tourists can tour Yogyakarta to see Prambanam and Borobudur, two historical and religious sites, and explore the local handicraft markets. The base of a volcano, Bandung, which is also known as the "Paris of Java", is ideal for adventure-seekers. Many ecotourism destinations, such as Toba Lake in Sumatra, Tanjung Puting National Park in Kalimantan and Bunaken in Manado, are places the embassy official recommends for tourists. Indonesia boasts world-class surfing facilities along the shores of Sumatra down to Nusa Tenggara Islands. Recently, Lombok, a sister island east of Bali has gotten so much attention from Chinese travelers that some travel agencies are offering twin packages for Bali and Lombok. The best time to visit Bali is from May to October, when it doesntrainmuch and the weather is cool. At press time, a weeklong package from Shanghai or Guangzhou to Bali was a little more than 3,000 yuan ($480) on Ctrips website. Chinese tourists have taken a shine to rafting in Ubud, sightseeing in Tanah Lot, and surfing and diving in Nusa Lembongan, says Dai. Civet coffee, essential oil and woodcarvings are among the most popular products for Chinese tourists in Indonesia, she says. Indonesian food is also something that visitors shouldnt miss. Local cuisines feature many spices, including peppers and cloves, and coconut pulp. Fried rice, "dirty duck" and roast suckling pig are recommended. Childrens illustration books first appeared in the 1600s in Europe. Their passage to China, however, took much longer, roughly 300 years. In China, childrens illustration books have a history of just 100 years and their development can be divided into four stages. From early 1900s to mid 1900s, a large number of books and magazines with illustrations appeared with the fast development of the modern publishing industry. The illustrationarts at that time were a mixed genre of Chinese traditionalpaintings and the westernstyle, and most of the stories originate from the fundamental changes that China experienced after the collapse of Qing Dynasty (1644-1911), the warlord struggles and the war against the Japanese invasion. The second stage was from mid 1900s to late 1970s, when the "cultural revolution" (1966-76) ended. The fast development of some special publishing houses for children gave birth to a large number of illustration-story books, which made a good use of folk art techniques, such as wood board carving, frescoes, and ink and wash painting, etc. Many of the popular stories are from Chinese history and wars after 1900s. The third stage is from early 1980s to late 1990s, a golden period for the development of childrens illustration books. The reform and opening-up brought in new concepts and ideas from the West to China, a country that had been closed to the West for nearly three decades. Fast development of economy, society and culture provided the writers and painters with a lot of inspiration to create new literature works and draw illustrations. China also imported large amounts of childrens illustration books from the West and Japan. Many young parents in China have a strong nostalgia about childrens illustration books they read in the 1980s and 1990s. This is also the last era in Chinas artistic innovation before the advent of the Internet period. The fourth stage is featured with the spread of the Internet and the other computerized means of art innovation. The hand-drawn childrens illustration books are gradually replaced by cartoons drawn and copied by software and machines, and shown on tablets, computers, television and smart phones, instead of books. Hainan Tropical Wildlife Park and Botanical Garden is natures haven, with no less than 4,000 rare birds and animals representing 200 species. With tropical forest covering over 90 percent of its area, the garden offers beautiful views of a wide range of tropical plants, flowers and fruit trees. The scenic spot about 25 kilometers from the center of Haikou offers a drive-thru safari tour where you can get up close with elephants, lions and bears. The "Safari on Foot" area features walking trails where visitors can see the rest of the animals, including hippos and monkeys, and feed them for a small fee. Visitors also can see what happens when you breed a lion and a tiger. Two unique attractions are rare hybrids: a liger, the offspring of a mallion and a female tiger and a tigon, which is created by a female lion and a male tiger. As ateaching center of the National Popular Science Education program, the park also serves as a second classroom for students to learn about wildlife and plants. Since it was established in 1995, it has received more than one million student visitors. At a crucial moment when pessimism has brought the Greek crisis to such a head that the country is closer to a default on its debt repayments than ever, Li offered a spark of enthusiasm to restart the stalled talks by calling on Greece and its creditors to reach a last-minute deal that will allow Greece to remain in the eurozone. Given the escalation of the countrys crisis over the weekend sent a shock wave through the global stock markets on Monday, there are ample reasons to worry about the uncertainties surrounding the events in Greece and the effect a default would have on Europe, relations between China and the EU, global financial stability and the nascent global economic recovery. Greece has announced that it will hold a referendum on a bailout plan proposed last week by the countrys creditors. In response, Greeces eurozone partners have refused to extend the countrys bailout program and the European Central Bank capped its emergency support for the countrys banks. A real danger now looms of Greece exiting the euro, which might derail the global economic recovery and damage the long-term viability of the euro as a currency. However, such a tragedy is neither certain nor unavoidable. The EU should shoulder its responsibility to prevent the Greek crisis from overshadowing the fragile global recovery. As a major customer and supplier of the 28-nation EU, and a responsible long-term holder of Eurobonds, Chinas confidence in and commitment to a strong eurozone offers EU leaders the necessary support to look at the Greek crisis from a broader and longer perspective. When Li said that China will not only consider a China-EU investment platform to back European Commission President Jean-Claude Junckers plan to revive the European economy, but also buy more bonds issued by the European Investment Bank, EU leaders should be clear that China wants to see the EU maintain its integrity and a forward trajectory. Such a confidence-building effort is particularly valuable, especially from such a large country as China which already has a huge stake and seeks to further expand it in a strong eurozone. It will be a tragedy to allow inaction over the Greek crisis to stand in the way of growth-boosting Sino-EU cooperation. Like a shining pearl, West Lake is the symbol of Hangzhou city. From ancient times, many poems have praised the amazing scenery of the lake. At the very beginning, the West Lake was a part of the Qiantang River. In the year 822, Bai Juyi, a famous poet and an officer of the Tang Dynasty (AD 618-907), suggested to build a stronger causeway to store water so that the lake was doubled in size. And during the Song Dynasty (AD 960-1279), many temples and pagodas were built due to a Buddhist revival, and the look of West Lake was formed at that time. The West Lake is quite big and features different classic views from different locations. Technically, there are ten scenes which were marked by Emperor Qianlong with four-character inscriptions 200 years ago, such as the Melting Snow on the Broken Bridge and Sunset Glow over Leifeng Pagoda.