XX公共资源综合交易管理中心设计方案.doc

airport was built during the war, but for some reason it could not be used then. last year, however, it came into use. over a hundred people must have been driven away from their homes by the noise. i am one of the few people left. sometimes i think this house will be knocked down by a passing plane. i have been offered a large sum of money to go away, but i am determined to stay here. everybody says i must be mad and they are probably right.lesson22 a glass envelope 玻璃信封my daughter, jane, never dreamed of receiving a letter from a girl of her own age in holland. last year, we were travelling across the channel and jane put a piece of paper with her name and address on it into a bottle. she threw the bottle into the sea. she never thought of it again, but ten months later, she received a letter from a girl in holland. both girls write to each other regularly now. however, they have decided to use the post-office. letters will cost a litt1e more, but they will certainly travel faster. lesson23 a new house 新居i had a letter from my sister yesterday. she lives in nigeria. in her letter, she said that she would come to england next year. if she comes, she will get a surprise. we are now living in a beautiful new house in the country. work on it had begun before my sister left. the house was completed five months ago. in my letter, i told her that she could stay with us. the house has many large rooms and there is a lovely garden. it is a very modern house, so it looks strange to some people. it must be the only modern house in the district.lesson24 it could be worse 不幸中之万幸i entered the hotel managers office and sat down. i had just lost &50 and i felt very upset. i left the money in my room, i said, and its not there now. the manager was sympathetic, but he could do nothing. everyones losing money these days, he said. he started to complain about this wicked world but was interrupted by a knock at the door. a girl came in and put an envelope on his desk. it contained &5o. i found this outside this gentlemans room she said. well, i said to the manager, there is still some honesty in this world !lesson25 do the english speak english? 英国人讲的是英语吗？i arrived in london at last. the railway station was big, black and dark. i did not know the way to my hotel, so i asked a porter. i not only spoke english very carefully, but very clearly as well. the porter, however, could not understand me; i repeated my question several times and at last he understood. he answered me, but he spoke neither slowly nor clearly. i am a foreigner, i said. then he spoke slowly, but i could not understand him. my teacher never spoke english like that! the porter and i looked at each other and smiled. then he said something and i understood it. youll soon learn english! he said. i wonder. in england, each man speaks a different language. the english understand each other, but i dont understand them ! do they speak english ?lesson26 the best art critics 最佳美术评论家i am an art student and i paint a lot of pictures. many people pretend that they understand modern art. they always tell you what a picture is about. of course, many pictures arc not about anything. they are just pretty patterns. we like them in the same way that we like pretty curtain material. i think that young children often appreciate modern pictures better than anyone else. they notice more. my sister is only seven, but she always tells me whether my pictures are good or not. she came into my room yesterday. what are you doing ? she asked. im hanging this picture on the wall, i answered. its a new one. do you like it ? she looked at it critically for a moment. its all right, she said, but isnt it upside-down ? i looked at it again. she was right! it was!lesson27 a wet night 雨夜late in the afternoon, the boys put up their tent in the middle of a field. as soon as this was done, they cooked a meal over an open fire. they were all hungry and the food smelt good. after a wonderful meal, they told stories and sang songs by the camp fire. but some time later it began to rain. the boys felt tired so they pet out the fire and crept into their tent. their sleeping-bags were warm and comfortable, so they all slept soundly. in the middle of the night, two boys woke up and began shouting. the tent was full of water! they all leapt out of their sleeping-bags and hurried outside. it was raining heavily and they found that a stream had formed in the field. the stream wound its way across the field and then flowed right under their tent!lesson28 no parking 禁止停车jasper white is one of those rare people who believes in ancient myths. he has just bought a new house in the city, but ever since he moved in, he has had trouble with motorists. when he returns home at night, he always finds that someone has parked a car outside his gate. because of this, he has not been able to get his own car into his garage even once. jasper has put up no parking signs outside his gate, but these have not had any effect. now he has put an ugly stone head over the gate. it is one of the ugliest faces i have ever seen. i asked him what it was and he told me that it was medusa, the gorgon. jasper hopes that she will turn motorists to stone. but none of them has been turned to stone yet!lesson29 taxi! 出租汽车！captain ben fawcett has bought an unusual taxi and has begun a new service. the taxi is a small swiss aeroplane called a pilatus porter. this wonderful plane can carry seven passengers. the most surprising thing about it, however, is that it can land anywhere: on snow, water, or even on a ploughed field. captain fawcetts first passenger was a doctor who flew from birmingham to a lonely village in the welsh mountains. since then, captain fawcett has flown passengers to many unusual places. once he landed on the roof of a block of flats and on another occasion, he landed in a deserted car park. captain fawcett has just refused a strange request from a businessman. the man wanted to fly to rockall, a lonely island in the atlantic ocean, but captain fawcett did not take him because the trip was too dangerous.lesson30 football or polo? 足球还是水球？the wayle is a small river that cuts across the park near my home. i like sitting by the wayle on fine afternoons. it was warm last sunday, so i went and sat on the river bank as usual. some children were playing games on the bank and there were some people rowing on the river. suddenly, one of the children kicked a ball very hard and it went towards a passing boat. some people on the bank called out to the man in the boat, but he did not hear them. the ball struck him so hard that he nearly fell into the water. i turned to look at the children, but there werent any in sight: they had all run away! the man laughed when he realized what had happened. he called out to the children and threw the ball back to the bank. lesson31 success story 成功者的故事yesterday afternoon frank hawkins was telling me about his experiences as a young man. frank is now the head of a very large business company, but as a boy he used to work in a small shop. it was his job to repair bicycles and at that time he used to work fourteen hours a day. he saved money for years and in 1938 he bought a small work-shop of his own. during the war frank used to make spare parts for aeroplanes. at that time he had two helpers. by the end of the war, the small work-shop had become a large factory which employed seven hundred and twenty-eight people. frank smiled when he remembered his hard early years and the long road to success. he was still smiling when the door opened and his wife came in. she wanted him to repair their sons bicycle! lesson32 shopping made easy 购物变得很方便people are not so honest as they once were. the temptation to steal is greater than ever before-especially in large shops. a detective recently watched a well-dressed woman who always went into a large store on monday mornings. one monday, there were fewer people in the shop than usual when the woman came in, so it was easier for the detective to watch her. the woman first bought a few small articles. after a little time, she chose one of the most expensive dresses in the shop and handed it to an assistant who wrapped it up for her as quickly as possible. then the woman simply took the parcel and walked out of the shop without paying. when she was arrested, the detective found out that the shop-assistant was her daughter. the girl gave her mother a free dress once a week !lesson33 out of the darkness 冲出黑暗nearly a week passed before the girl was able to explain what had happened to her. one afternoon she set out from the coast in a small boat and was caught in a storm. towards evening, the boat struck a rock and the girl jumped into the sea. then she swam to the shore after spending the whole night in the water. during that time she covered a distance of eight miles. early next morning, she saw a light ahead. she knew she was near the shore because the light was high up on the cliffs. on arriving at the shore, the girl struggled up the cliff towards the light she had seen. that was all she remembered. when she woke up a day later, she found herself in hospital.lesson34 quick work 破案“神速”ted robinson has been worried all the week. last tuesday he received a letter from the local police. in the letter he was asked to call at the station. ted wondered why he was wanted by the police, but he went to the station yesterday and now he is not worried any more. at the station, he was told by a smiling policeman that his bicycle had been found. five days ago, the policeman told him, the bicycle was picked up in a small village four hundred miles away. it is now being sent to his home by train. ted was most surprised when he heard the news. he was amused too, because he never expected the bicycle to be found. it was stolen twenty years ago when ted was a boy of fifteen !lesson35 stop thief! 捉贼！rov trenton used to drive a taxi. a short while ago, however, he became a bus-driver and he was not regretted it. he is finding his new work far more exciting. when he was driving along catford street recently, he saw two thieves rush out of a shop and run towards a waiting car. one of them was carrying a bag full of money. roy acted quickly and drove the bus straight at the thieves. the one with the money got such a fright that he dropped the bag. as the thieves were trying to get away in their car, roy drove his bus into the back of it. while the battered car was moving away, roy stopped his bus and telephoned the police. the thieves car was badly damaged and easy to recognize. shortly afterwards, the police stopped the car and both men were arrested. lesson36 across the channel 横渡海峡erna hart is going to swim across the english channel tomorrow. she is going to set out from the french coast at five oclock in the morning. erna is only fourteen years old and she hopes lo set up a new world record. she is a strong swimmer and many people feel that she is sure to succeed. ernas father will set out with her in a small boat. mr hart has trained his daughter for years. tomorrow he will be watching her anxiously as she swims the long distance to england. ernaxx交易中心封闭评标系统设计方案一、概述按照有关部门对有形建筑市场监督系统的要求，建立xx交易中心设施先进、性能可靠、经济实用的监控、呼叫对讲、门禁、会议扩声和投影、led信息发布、手机屏蔽、评标过程监督显示和评标全过程信息保存的封闭式评标区监督管理系统。封闭式评标区监督管理系统要严格参照相关的国家标准进行设计并适合业主所供软件的技术要求。设计要求技术先进、功能适用、性能稳定可靠、节约成本并具有扩展和兼容性，系统各项性能指标均应达到国内同期先进水平；设计方案便于施工、维护、操作及保护前期投资，并且预留开放、标准接口，为今后发展、扩建、改建等留有扩充余地。通过现场勘查、认真研究贵方的图纸和技术要求，我方为xx交易中心的封闭评标系统电视监控系统、呼叫系统、对讲系统、广播系统、会议扩声及投影、门禁系统、led信息发布系统、手机屏蔽系统、电源供给系统及综合布线系统工程提供符合技术规范的系统和设备、以及落实实施计划、保证工程质量和工期、做好售后服务等方面的总体要求。我方将提供符合要求的一整套服务：包括系统设计、设备提供、运输、安装调试、试运行、培训以及缺陷责任期服务等。我方承诺：对工程的质量、工期及服务负有不可推卸的责任，以确保工程质量和工期，所有的一切将会使建设单位感到满意。二、系统设计思想本方案是在充分理解建设单位要求的基础上，考虑了智能化系统和监控系统的特点，并结合我公司多年以来在系统工程中所积累的经验，根据“智能、先进、可靠、合理、严密、经济、完善”的设计思想，以求达到先进性、实用性、可靠性、可扩展性、易维护性的要求设计而成。系统的设计和施工方案均严格遵循有关国际和国家标准进行，在硬件的配置上也都采用标准结构，以使系统具有开放性、可扩充性。三、总体技术方案遵循的原则1、对系统的图像、数据、控制信号采用了数字化处理。在一条数字通信线路上即可实现多种信息的远程传输，同时又能满足系统对图像的清晰度和数据传输的实时性等要求。2、图像监控系统软、硬件均采用模块化设计，使系统具有可扩充性，便于用户自行对系统进行更新配置、开发和扩充。3、系统扩充简捷、方便，系统管理员可直接扩充前端设备及进行简单系统配置。4、操作界面和用户监控界面均为图形化，操作简单。5、系统实现了网络化、数字化、模块化，通过集中控制和系统之间的交流，使网络和系统构成了一个统一的整体。6、整个系统采用二级结构，每一级都有自我管理和控制的功能。四、工程施工规范及标准本系统所遵循的主要标准如下：gb50198-94 民用闭路监视电视系统工程技术规范gbj115-87 工业电视系统工程设计规范gb50200-94 有线电视系统工程技术规范gb/t50311-2000 建筑与建筑群综合布线系统工程设计规范gb/t50312-2000建筑与建筑群综合布线系统工程验收规范gb/t50314-2000 智能建筑设计标准jgj/t90-92 建设领域计算机软件工程技术规范jgj/t121-99 工程网络计划技术规程gbj142-90 中、短波广播发射台与电缆载波通信系统的防护间距标准cecs09:89 工业企业和程控用户交换机工程设计规范gbj79-85 工业企业通信接地设计规范gbj120-88 工业企业共用天线电视系统设计规范cecs81:96 工业计算机监控系统抗干扰技术规范五、系统组成xx交易中心的封闭评标系统由监控及监督系统、呼叫系统、对讲系统、广播系统、会议扩声及投影系统、门禁系统、手机屏蔽系统、led信息发布系统、电源供给系统及综合布线系统等组成。 1、监控及监督系统本系统主要是对xx交易中心的封闭评标区域和开标区域进行实时的监视、监听及存储，从而达到评标过程的公平、公正和公开。本系统采用传统模拟方式，将前端摄像机的模拟视频信号和音频信号通过专用音视频线缆传输至后端控制中心，通过音视频分配器，第一路输入至嵌入式硬盘录像机进行实时存储，第二路输入至需要进行双备份的嵌入式硬盘录像机进行双备份存储（封闭评标区），第三路输入至音视频矩阵切换器，通过切换输出至监督室的液晶电视机和耳机上，为监督人员提供实时的监视和监听需求。针对xx交易中心监督室的现场情况，考虑到pdp拼接屏成本太高，我公司拟采用电视拼接方式通过视频矩阵进行实时视频监督；在每个座位上面安装耳机，通过音频矩阵进行实时的声音监听。为了满足系统的需要,达到设备性能优良、质量可靠、价格合理的要求,通过对目前国内技术先进的主流产品的调研,综合其性能价格比、返修率,结合安全防范工程的要求等诸多因素的对比,择优成优化系统。摄像机、录像机、监视器等视频设备,是直接决定系统图像清晰稳定的关键设备,又是系统中使用最易损的设备,对该类器材选择必须满足:(1) 器材技术指标要求,能适应多种环境要求。(2) 器材价格相对低廉,性能价格比高。(3) 在器材正常磨损、失效(如监视器显像管)时,其备件供应充分、更换简便。可靠实用性 从性能价格比的角度考虑，系统的前端图像采集、传输线路及附属设备、端控制系统等都遵循性价比高的原则去选择相关系统产品,同样在系统施工、安装调试、维护保养等方面保证了整个系统的高可靠性、稳定性，同时兼顾到系统功能的完善和操作简单化、人性化的要求。我公司在众多项目的集成经验的基础上，对整个系统选择的设备、技术可行性作了充分的可行性论证。模块化 整个安全防范监视系统根据系统所选择的cctv产品的特性，基于模块化设计，分为图像采集模块、信号控制模块、图像处理模块三大单元，便于将来系统的升级和扩展,即使在未来网络设施齐全时,也不需要替换现有设备,只需简单添加其他基于数字的系统单元和网络处理单元,从而保证了系统投资的延续性。（1）传输部分的选择 对于cctv闭路电视监控系统，一般选用syv-75标准的带屏蔽的同轴电缆，根据本系统各监视点的距离可选用syv-75-3带屏蔽的同轴电缆，保证图传输质量。电源线采用机房集中供电模式，各监视点摄像机电源由机房集中统一供电，保证系统整体高可靠性和高可维护性。（2）前端主要设备的选择1）松下 wv-cp500l 摄像机摄像机是电视监控的前沿部分,是整个系统的“眼睛”,它把监视的内容变为图像信号,传送到控制中心的监视器上。摄像机的好坏以及它产生的图像信号将影响整个系统的质量。因此,采用panasonic 公司全新的彩色摄像机，该摄像机专为大厦，机场，银行和商店的保安监控而设计的，采用最新的ccd技术，带来了高品质的图像，和大于50db的信噪比。同时dsp(数字信号处理)技术，提供了模拟信号无法达到的高可靠性和稳定性。并且具有卓越的性能： 背光补偿功能，自动白平衡，ccd iris, trobo agc 等。彩色摄像机wv-cp500l 第五代超级动态技术整合了超级动态，自动暗区域补偿(abs)来提供优质的图像。 水平清晰度更高：彩色模式650线，黑白模式700线。 高灵敏度(日夜型)：0.1lux(彩色)，0.07lux(黑白)，在f1.4时。 场景变化检测(如镜头被遮盖，喷洒，拆除或焦距偏移等)功能 3维色彩转换功能即使在低照度条件下也能再现原色彩。 自适应数字降噪技术：在多种条件下，2d-dnr和3d-dnr都可以很好地降噪。 电子灵敏度提升：自动(最大32倍) / 手动 (最大32倍)。 数码变焦：可达2倍。 电子快门从1/120秒到1/10,000秒。 报警信号输入输出端口。 自动图像稳定器：可消除因震动或大风对图像清晰度造成的影响。 内同步 / 线性锁定 / 多工垂直驱动(vd2)同步。 通过同轴电缆实现通信控制。 第五代超级动态高清日夜型彩色摄像机具有自动暗区域补偿(abs)，超高性价比 第五代超级动态图像合成技术 传感器 1/3型行间转移ccd 有效像素 976 (h) x 582 (v) 扫描方式 2:1隔行扫描 扫描范围 4.8 (h) x 3.6 (v) mm 扫描频率 水平：15.625khz；垂直：50hz 扫描 625线 水平清晰度 彩色模式：650线；黑白模式 ：700线 最低照度 f1.4时 彩色模式：0.1lux (sens up：关)， 0.003lux* (sens up：32倍)简易黑白模式： 0.07lux (sens up：关)，0.002lux* (sens up：32倍) 信噪比 50db (agc关，加重开) 白平衡 atw1(2,700 6,000k)，atw2(2,000 6,000k)或awc(2,000 10,000k) 光线控制 alc / alc+ / elc agc 开 (高 / 中 / 低)或关 第五代超级动态 开 / 开(vmd) / 关 动态范围 54db(typical)(第五代超级动态 开) 电子快门 关(1/50)，1/120，1/250，1/500，1/1,000，1/2,000，1/4,000，1/10,000秒 电子灵敏度提升 关 / 自动 (2倍，4倍，6倍，10倍，16倍，32倍) / 固定 (2倍，4倍，6倍，10倍，16倍，32倍) 数字降噪 低 / 高 黑白模式 模式：自动 / 关 数码变焦 开 (可高达2倍) / 关 场景 2种模式 vmd 场景变换探测 隐私区 开(灰色 / 马赛克) 或 关 自动图像稳定 开 / 关 摄像机字幕 可多达16个字符 镜头卡口 cs卡口 alc镜头驱动 dc 信号同步 内同步(int)，多工垂直驱动(vd2)，线性锁定(ll) 输入 / 输出 视频输出 vbs：1.0v p-p / 75 bnc插口 外部输入 / 输出端口 报警信号输入：1(关/报警 / vmd permit / bw / scene2)；报警信号输出：1(关 / 报警 / bw) 一般规格 设置方法 osd设置菜单 语言 中文 安全 / emc标准 ce (en60065，en55022 classb，en55024)，gost (gost r 51558) 电源与功耗 wv-cp500l/ch:ac 220 240v 50hz，3.7wwv-cp504lch:ac 24v 50hz，dc 3.6w 12v，310ma 工作环境温度 -10摄氏度 +50摄氏度 工作环境湿度 90%(无结露) 尺寸 wv-cp500l/ch:75mm(w) x 65mm(h) x 132.5mm(d)wv-cp504lch:72mm(w) x 65mm(h) x 103.5mm(d) 重量 (约) wv-cp500l/ch:420g(不包括电源线)wv-cp504lch:340g2）腾龙镜头 13vg308as 产品规格 13vg308as成像器大小 1/3交换镜头座 cs焦距 3.08mm光圈范围 1.0360视场角 （水平垂直） 1/3型 wide 91.0x66.6tele 35.9x26.91/4型 wide 66.6x49.3tele 26.9x20.1焦距范围 0.2m操作方法 焦点 手动 （带锁定结构）变焦 手动 （带锁定结构）光圈 dc自动光圈过滤器口径 后焦点 (in air) wide 8.36tele 14.12mm工作电压 open 4.0v close 0.7v质量 47g工作温度范围 -20+60配线图 3）高速球型摄像机 大华dh-sd6663-hsony ccd，540tvl（d系列） 支持宽动态（d系列） 采用安普插座，安装简便 中英文osd屏幕操作菜单 独特的三维智能定位功能 支持守望功能 支持定时运行功能 内置7路报警输入2路输出，支持报警联动 支持485远程无拆卸升级 内置3000v防雷，防浪涌和防突波保护装置 防护等级：ip67，内置自动恒温及防结雾功能装置参数dh-sd6663d-h/dh-sd6663-hdh-sd6665d-h/dh-sd6665-hdh-sd6666d-h/dh-sd6666-h成像装置1/4英寸exview had ccd1/4英寸exview had ccd1/4英寸exview had ccd水平解析度d系列：540tvl；480tvld系列：540tvl；480tvld系列：540tvl；480tvl光学变焦倍数18倍26倍36倍数字变焦倍数12倍12倍12倍最低照度0.01lux(icr on)0.01lux(icr on)0.01lux(icr on)电子快门1/1-1/10000秒 22档1/1-1/10000秒 22档1/1-1/10000秒 22档信噪比 50db 50db 50db有效像素约440，000像素(752*582)约440，000像素(752*582)约440，000像素(752*582)镜头f=4.1mm(wide)73.8mm(tele),f1.43.0f=3.5mm(wide)91.0mm(tele),f1.63.8f=3.4mm(wide)122.4mm(tele),f1.64.5宽动态范围d系列：128倍；n/ad系列：128倍；n/ad系列：128倍；n/a背光补偿开/关开/关开/关白平衡自动，自动跟踪白平衡（atw），室内，室外，一键式，手动自动，自动跟踪白平衡（atw），室内，室外，一键式，手动自动，自动跟踪白平衡（atw），室内，室外，一键式，手动日、夜转换支持支持支持支持图像效果电子翻转、反转、镜像电子翻转、反转、镜像电子翻转、反转、镜像背光补偿自动/手动自动/手动自动/手动手动控制速度水平：0.1 300/秒； 垂直：0.1 150 /秒水平：0.1 300/秒； 垂直：0.1 150 /秒水平：0.1 300/秒； 垂直：0.1 150 /秒旋转角度水平：0 360连续旋转 垂直：-2 90 自动翻转180后连续监视水平：0 360连续旋转 垂