Electronic Automatic Block System Of Double-track And Double-direction

As a result of using relay circuit in CTCS0and CTCS1level control system in quantity,it isdifficulty to locate fault of equipment and maintain it, which will reduce the capacity ofrailway section. So the trend of control system is upgrading the old relay circuit and the bestway to achieve it is to substitute all-electronic performance computer that integrates networktechnique, computer, power electronics control and communication technology for originalcircuit. Thus, a new electronic block system is built up with control and supervision. Basingon the track datas of Sanji Station and Lingshou Station, belonging to ShuoHuang section ofShenhua Group, the Electronic Automatic Block System of Double-track and Double-direction models and simulates the section between the two stations with semi-physicalsimulation way. According to section track data, station route data and some parameters,relevant data is retrieved from dynamic test of simulation system. All-electronic AutomaticBlock System not only replaces complex relay circuit with clear software logic, but alsomakes for combination with Computer Interlocking Control system, which improves thesafety and reliability of system and simplifys it.On the background of electroic Automatic Block System, final scheme is determined bymeans of combining with the project. Also the demand analysis of the adjacent stationsimulation system is made. Finally the new system is modeled and simulated, in whichprocess VC++6.0platform bases on Window2000/XP operating system or above is main tool.At first Automatic Block System of Double-track and Double-direction is introducedbriefly and the overall simulation scheme is developed by summary, analysis and comparisonof major functions and critical elements. Secondly based on the allomeric function, functionalrequirement of the adjacent station simulation system is put forward and the four-wire changerunning direction is introduced in detail, including constitution, principle and operationprocess. Some circuit problems which may affect the efficiency and safety are summarizedaccording to intensing research on the circuit of changing direction. Then in the softwareimplementation section the simulation of the adjacent station system is made with VC++6.0.The adjacent station system communicates with section host thro ugh Ethernet for dataexchanging and the section host sends commands to train and carrys on kinds of operationsafter integrated treatment of information of two stations. Meanwhile the logic adjustment offour-wire change running circuit is made to solve the suggested problems. Finally JointDebugging of whole electronic system is accomplished, including communication, dataexchange, changing direction and auxiliary changing direction. The adjacent station simulation system is an important part of Electronic Block System.It overcomes the drawbacks of direction changing circuit in original system, improvessecurity and efficiency and makes for fault detection and processing.