有关64D半自动闭塞的外文翻译

1、64D Type semi-automatic block electronic analysed Most of the current section in China Railway,Artificial occlusion (staff and tablet block) system has gradually been eliminated, In the "fifteen" at the end of the block section mileage accounted for only 0.1%, The semi-automatic block 61.7

2、% of interval mileage.Semi-automatic block is improved constantly improve,By the simple semi-automatic to relay semi-automatic block. From 58 relay to 60 type semi-automatic block development,Until now has been widely used in type 64 relay semi-automatic block.With the rapid development of high-spee

3、d railway,To ensure absolute safety of railway transportation, Relay semi-automatic block and train operation control system for its safe and effective, fast, accurate characteristics play an irreplaceable role.In order to meet the needs of the various operating conditions , Type 64 relay semi-autom

4、atic block is divided into single line segment 64D type, double line section of the application of the 64s and 64y type of single wire belt .Achieve interval block of equipment along with the development of railway transportation and development,Block equipment technology to improve the efficiency o

5、f the train operation density and transportation plays an important role.Occlusion device development has experienced the manual block, semi-automatic block, automatic block and moving automatic block several stages.Organization train in the interval of driving method,Generally has two kinds of time

6、 interval and space interval method.At present the space interval method is used in block,Occlusion of the widespread use of the following two ways. (1) semi-automatic block Sending station attendant must leave after going through the formalities for good occlusion can open signal,Train the outbound

7、 signal automatically shut down after departure.In the interval is left when the vehicle has not been tested,Must also be confirmed by pick up station attendant train arrive completely. (2) automatic block According to the state of train operation and the relevant block partition,Automatic control b

8、y signal display,And driver with ground signal according to driving. At present,In China most of the railway is equipped with more than two kinds of block equipment,But the circuit realization of relay circuit is widely used.As the railway, and the whole electronics industry technology progress,Usin

9、g computer with communication technology to realize semi-automatic block and moving automatic block or block,As a new research hotspot. Based on the 64D semi-automatic block as an example,Illustrate the using direction of electronic circuit to replace traditional relay way of thinking.1、Semi-automat

10、ic block electrical implementation The semi-automatic block widely used relay circuit implementationSuch as 64D semi-automatic block includes eight units in circuit: Line relay circuit,Start the receiver circuit,Pick up the car receiver circuit,Isolated relay circuit,Recovery of relay circuit,Track

11、multiple relay circuit and lamp circuit. Type 64D semi-automatic block through a telephone line connection between two stations,Used to transfer information block.Type 64D semi-automatic block to send two different polarity pulse,Using two relay,Used to send a positive polarity pulse (ZDJ),Used to s

12、end a negative polarity pulse (FDJ);At the receiving end USES two relay to receive,Which are line relay (ZXJ) and negative line relay. 2、 Semi-automatic Blocking electronic implementationBasic technical requirements for system of 64D type semi automatic block are as follows.(1) to the departure stat

13、ion, must check interval idle state, the receiving station agrees and has cancelled the receiving station of the district Between the start right after the departure station, in order to open the exit signal machine.(2) when the train station, bus station starting signal must be automatic shutdown,

14、before once again to go through the formalities, starting signal shall not be opened again.(3) connected by train arrives station, station attendant to check list the car arrived at the receiving station complete, close the stop signal, can handle unblocking (arrival restoration) procedures, the two

15、 stations block recovered a state.The relays are canceled, station telephone line using communication the transmission medium (cable or fiber) to achieve, then, the whole 64D type of electronic semi-automatic block circuit should be the following structureA and B station no longer set relay contact

16、road, replace sb. Is the cable or other communication channel, in two the interlock logic of computer interlocking station (or with similar functions. Between the data transmission unit).In order to facilitate the use of electronic circuit, the interval in the mode of operation should be consistent

17、with the original relay circuit, in the console.The following buttons and indication lamp.Button:To block button BSA: nonstick, handle request departure or the same Press the meaning of connecting the car.Lucky accident button SGA: since the compound, with the lead seal, when the system Use the begi

18、nning of.Kui restore button FUA: nonstick, handle the arrival restoration or press the elimination of recovery.Said lamp:Grid said yellow lamp FBD said the request to start,Green represents a departure station to start, red grid block.Receives a car lamp JBD: Yellow departure station request departu

19、re,Green said the station to pick up the car, red indicates that the receiving block, when the earth Car lamp and light red, said the train arrives.Bell with voice alarm instead.Corresponding to each docking grid El, programming the following variables.In section occupied or not: initialization is o

20、ccupied, a car When a train is occupied, arrive at the other station post free. Kill the station status: agree to the car, after the car, start, start request,The car has been sent into the interval, the car has entered the interval, fault or the initialization state and recovery state.Neighbor stat

21、e: the content item with the station status.The information above a station, through the communication channel to the B station;Similarly, the above information B station through the channel to a station.Because the information relates to safety, we must take certain measures To ensure the correctne

22、ss and timeliness of the data, the following measures.By the variable coding using 8 or 16 bit, increase the code distance.Fortunately, the 64 CRC check.The honor to join the heartbeat information, confirm the adjacent station work in normal state, periodic real-time data, guide the safety side time

23、out.To increase the intrusion protection function.For the safety of information transmission, can be in accordance with the EN501591 andEN501592 instructions, use appropriate means to ensure the numberAccording to the integrity of the.Through the use of security protocols, may be in general transmis

24、sion of information security through the communication line.Interface electronic circuit and interlocking direction, can also be used the communication way, on the premise of ensuring safety, reduce the number of relay interface.Similarly, in order to the security of the system, microprocessor and s

25、oftware security must be guaranteed, require the use of appropriate design hand and the implementation method, to improve the security level of the whole system, so that the no less than the safety of the original direction circuit.Section occupied, the station status and neighbor state is used to j

26、udge the occlusion important conditions.The station according to the attendant operation and train state to the 3 variable assignment, at the same time, the two adjacent station by station channel for these 3 variables, to judge the occlusion conditions can constitute.Illustrated as follows:A statio

27、n to station B request at the start, according to Table L, at a station should check their own section occupied state is not occupied, the station status and the neighbor state to restore state, at the same time adjacent station interval state is not occupied, these conditions are met, in order to g

28、ive B station issued please the occlusion information.B station receives a standing request block information, check their the interval occupation condition is not occupied, the station status and neighbor state restoration, check a station by station digital channel for transmission over the interv

29、al occupancy conditions for unoccupied, the station status and request departure, adjacent stations.State is restored, can to a station transmits to pick receipt.The above is just normal case management program,For unnormally, but also with the departure and the receiving route of processing, transf

30、er the contents of the corresponding rise even further.But due to miningwith the way of communication, increase the transmission of information, does not need to increase tract number.3、Use cost comparisonThe use of electronic steering circuit, main save is station cable investment, using fiber opti

31、c cable instead of interval cable can save investment 20000 yuan per kilometer; increasing equipment is to realize the electronic specialized,When the electronic module is lower than the cable cost savings, This is lower than the traditional direction circuit, and easy to upgrade and fault diagnosis

32、.When the station interlocking using computer interlocking, if the computer the lock has communication function, can further reduce the cost, in electronic circuit realization of interlock logic direction.When the station adopts the computer interlocking and computer interlocking system, not have th

33、e communication function, can through the electronic steering circuit realization of communication between stations, save the interlocking station communication equipment costs.4、ConclusionElectronic steering circuit is the future direction of development, with the development of communication techn

34、ology, microprocessor and large-scale in railway control.Have the conditions for the development of the electronic steering circuit.When the interface electronic direction circuit and interlock with I / O Type, may need to fully electronic direction circuit for input and output module block, may inc

35、rease the cost and difficulty of the system equipment, communication mode of interface is a good choice.Safety requirements for electronic circuit in the high level direction, realization the son of circuit must grasp its security and from the angle of the system reliability.With the introduction of

36、 domestic EN5012X series standard,development of a line with the requirements of EN5012X standard, high safety improvement grade (such as SIL4) direction of the circuit module, is a new development direction.64D型半自动闭塞电子化浅析目前我国铁路的大部分区段上，人工闭塞(路签和路牌闭塞)制度已逐步被淘汰，在“十五”末期该闭塞只占区段里程的0.1%，而半自动闭塞占区间里程的61.7%。半自

37、动闭塞不断得到改进提高，由简易半自动发展到继电半自动闭塞。从58型继电半自动闭塞发展到60型，直到目前被广泛采用的64型继电半自动闭塞。高速铁路的快速发展，保证铁路运输的绝对安全，继电半自动闭塞与列车运行控制系统以其安全有效、快速准确的特点发挥着不可替代的作用。为了适应各种运行情况的需要，64型继电半自动闭塞又分为单线区段应用的64D型、复线区段应用的64S型和单线带预办的64Y型。实现区间闭塞的设备随着铁路运输的发展而发展，闭塞设备技术对提高列车运行密度和运输效率具有重要的作用。闭塞设备的发展经历了人工闭塞、半自动闭塞、自动闭塞以及移动自动闭塞几个阶段。组织列车在区间行车的方法，一般有时间间

38、隔法和空间间隔法两种。我国目前采用的闭塞方法是空间间隔法，广泛使用以下两种闭塞方式。(1)半自动闭塞发车站值班员必须在办理好闭塞手续后才能开放出发信号，列车出发后出站信号自动关闭。在没有检测区间是否留有车辆时，还必须由接车站的值班员确认列车的完全到达。(2)自动闭塞根据列车运行及有关闭塞分区状态，自动控制通过信号机的显示，而司机凭地面信号机显示来行车。目前，我国大部分铁路都装备了以上两种闭塞设备，但这些电路的实现普遍采用了继电电路的方式。随着铁路以及整个电子行业的技术进步，采用计算机配合通信技术来实现半自动闭塞、自动闭塞或者移动闭塞，成为一个新的研究热点。本文以64D型半自动闭塞为例，说明了采

39、用电子化方向电路取代传统继电器方式的思想。1、半自动闭塞电气实现目前的半自动闭塞广泛采用继电器电路实现，如64D型半自动闭塞共有8个单元电路：线路继电器电路、发车接收器电路、接车接收器电路、闭塞继电器电路、复原继电器电路、轨道复示继电器电路和表示灯电路。64D型半自动闭塞的两站间通过一对电话线连接，用来传输闭塞信息。64D型半自动闭塞发送2种不同的极性脉冲，采用2个继电器，一个用来发送正极性脉冲(ZDJ)，一个用来发送负极性脉冲(FDJ)；在接收端采用2个继电器来接收，即正线路继电器(ZXJ)和负线路继电器。2、半自动闭塞的电子化实现64D型半自动闭塞系统的基本技术要求如下：(1)车站要向区间

40、发车，必须检查区间空闲状态，在取得接车站同意并已经取消了接车站对该区间的发车权后，发车站才能开放出站信号机。(2)当列车出站后，发车站的出发信号机必须自动关闭，在未再次办理手续之前，出站信号机不得再次开放。(3)列车到达接车站，由接车站值班员检查列车完整到达，接车站关闭进站信号机后，即可办理解除闭塞(到达复原)手续，使两站闭塞机恢复定位状态。把继电器都取消掉，站间的电话线也采用通信传输介质(电缆或者光纤)来实现，那么，这个全电子化的64D型半自动闭塞电路应该是下面的结构。甲站和乙站间不再设继电联系电路，取而代之的是光缆或其他通信通道，可以在两站的联锁逻辑部(计算机联锁或具有类似功能的处理单元)之间传输数据信息。为了方便使用，电子化区间电路在操作方式上应该与原来的继电式电路保持一致，在控制台上设置以下按钮以及表示灯。按钮：闭塞按钮BSA：自复式，办理请求发车或同意接车时按下。事故按钮SGA：自复式，带铅封，当系统初始化时使用。复原按钮FUA：自复式，办理到达复原或取消复原时按下。表示灯：发车表示灯FBD：黄色表示本站请求发车，绿色表示发车站同意发车，红色表示发车闭塞。接车表示灯JBD：黄色表示发车站请求发车，绿色表示本站同意接车，红色表示接车闭塞，当接车表示灯同时点亮红灯时，表示列车到达。电铃用语音报警代替。对应于每一对接发车EL，程序设计以下变量。区间占用与否：初