Third,the basic function of the signal system
1,the Automatic Train Control System (ATS)
ATS system by the control center,stations,parking lots and automotive components.ATS system in the ATP system with the support of the completion of the automatic train control,to achieve the following basic features:
(1) ATS station equipment,to collect rail car ATP Pangji the track occupied state,approach roads,and train state and signal equipment failures,such as train control and supervision of the basis of information.
(2) According to interlock table,scheduled plan and the location of the train,automatically generated output approach control orders,sent to the station chain equipment,set up the train approaches,control the train stops after midnight.
(3) train identification and tracking,transmission and display capabilities.System is able to automatically identify the train line section (of services,destinations,body) track,the train recognition of the ATS automatically generated by the dispatcher or artificial settings,edit,but also by the train cars - and Communications sent to the identification of ATS and other information.
(4) Programme and the train is running track and the plan is relatively computer-aided dispatch functions.According to the train deviated from the actual situation,generated automatically adjust plans for the dispatcher reference or automatically adjust the train stops after midnight,control departure time.
(5) ATS central failure of the demotion processing,artificial intervention by the dispatcher set into the road,the train operation to adjust the station by the ATS completed or under way into the automatic identification of automatic train control signal from the station manual approaches Control.
(6) in computer-aided completed plans to train the basic operation of the establishment and management,and has strong ability to manual intervention.Through the terminal in the depot to depot management and traffic officers to provide the necessary information in order to prepare plans and road vehicles use plan.
(7) screen and train dispatching monitors to the section of track,turnout,signal and a train line running,such as surveillance,can be given on the line for workstation equipment failure prompted alarm and fault source.
(8) in the central and special equipment to provide simulation and presentation function,for training and visits.Can automatically run reports statistics,and in accordance with requirements of show print.
(9) in the station control mode and computer equipment interlocking combination of some or all of signal-placed automatic mode state.
(10) to the wireless communications,broadcasting,visitors guide system to provide the necessary information.
2,Automatic Train Protection System (ATP)
ATP system from the ground equipment,automotive components,and supervision in a safe speed trains running to ensure that once the train exceeds the speed,braking immediately implemented,mainly the following features:
(1) continuously and automatically detect the location of the train,train and send the necessary speed,distance,line conditions,and other information to identify the biggest security operation of the train speed.Speed trains to provide protection,the train speeding to provide common brake or emergency brake,and ensure follow-up visit before the interval between trains to meet the positive driving lane layout and design of the reentry interval.Trains can run on a reverse ATP protection.
(2) ensure that the correct approach and train the safe operation of trains.To ensure that the same track on the train between different enough safe distance,and such as to prevent train collision side.
(3) to prevent speeding train running to ensure that no more than speed train lines,turnouts,vehicles and other provisions to allow the speed.
(4) for the train doors open to provide safe,reliable information.
(5) According to the interlock devices into the interval on the track of the direction of travel,determined according to the Code track circuit direction.
(6) any car - and the disruption to communication expected to train non-mobile (including the withdrawal line),any interruption of the circuit integrity of the train,the train speeding (including temporary speed limit),automotive equipment failures and so on will have a safety brake.
(7) and the realization of the ATS interface and the exchange of information.
(8) system of self-diagnosis,fault alarm,record.
(9) the actual speed of the train,the recommended speed,target speed,distance and other objective information and records show.With manual or automatic rotation Path wear compensation.