A kind of controlled train tail system
Technical field
The invention belongs to the train braking field, particularly a kind of controlled train tail system.
Background technology
Along with the fast development of China railways and the formulation of the medium-term and long-term development program of China railways, heavy haul transport is in China railways a period of time in future, the energy transportation mode of emphasis.Along with starting of heavy haul train, heavily loaded long and big train becomes problem demanding prompt solution in the synchronous braking and the safety arrestment of operation glancing impact.
Tradition row tail system is when its auxiliary braking, and is uncontrollable because of system decompression power, so can only accomplish emergency braking in that emergency situation is auxiliary, and can not in train travelling process, realize and the synchronous controllable brake of hauling engine.
Qun Dynasty's line of the GSM-R network coverage is being arranged, carrying out data transmission by the GSM-R network, can realize the controlled train tail system of heavily loaded long and big train afterbody and the synchronous controllable brake of hauling engine, online utilization also obtained good Expected Results.
For with the controlled train tail system that successfully applies to Qun Dynasty's line, be generalized to the heavy-haul line of other no GSM-R network coverage, need to solve present controlled train tail and the real-time reliable data transmission of row tail head device under no GSM-R network condition.
Summary of the invention
To the deficiency of prior art, the invention provides and a kind ofly need not rely on the GSM-R network coverage, can realize the general form controlled train tail system of heavily loaded long and big train afterbody and the synchronous controllable brake of hauling engine.The present invention shortens the time of train operation braking, when improving train operational safety and reducing train braking to the harmful effect of circuit.
A kind of controlled train tail according to the invention system comprises locomotive part, controlled train tail part, monitoring and standby maintenance system.Said locomotive partly comprises locomotive operation monitor device (LKJ), driver's control capsule and locomotive main frame; Controlled train tail partly comprises train tail host sequence of partial sums tail communications portion, comprises control unit in the train tail host part.Comprise GPRS communication module and radiocommunication module in the said locomotive main frame; Row tail communication part adopts the radio communication mode.
The locomotive operation monitor device can be monitored equalizing reservoir pressure and air main pressure, and gives driver's control capsule with its information transfer; Driver's control capsule can be given the locomotive host machine part with the decompression information transfer.The radiocommunication module of locomotive main frame can carry out data exchange with row tail communication part.Row tail communication part can be given the data transmission that receives the control unit of train tail host.Control unit can carry out air draft, decompression according to the Data Control electromagnetic valve of the row tail communication part that receives.
Like this, just accomplished locomotive and the row tail reduces pressure synchronously, begun the purpose of braking end to end simultaneously to reach train.
The monitoring of controlled train tail system and standby maintenance system main portion are that this server end can be collected from the data of locomotive main frame and train tail host, and analyzes according to the server end that belongs in the Internet net.And will put data in order.Client terminal can show the service condition of controlled train tail system practically through the monitoring system analysis software.Simultaneously can write down and store each operating state data, with convenient inquiry afterwards.
Description of drawings
Fig. 1 general form controlled train tail of the present invention locomotive part system authority scheme drawing
Fig. 2 general form controlled train tail of the present invention row portion scheme drawing
Fig. 3 hardware design block diagram of the present invention
The specific embodiment
Through specific embodiment the method for the invention is further specified below.
A kind of controlled train tail according to the invention system comprises locomotive part, controlled train tail part, monitoring and standby maintenance system.Said locomotive partly comprises locomotive operation monitor device (LKJ), row tail driver's control capsule and controlled train tail locomotive main frame; Controlled train tail partly comprises controlled train tail host machine part and controlled train tail row tail communications portion, comprises control unit in the train tail host part.Comprise GPRS communication module and radiocommunication module in the said locomotive main frame; Row tail communication part adopts 450MHz network radio communication modes.
When using controlled train tail according to the invention system to carry out train braking; The decompression of manipulation locomotive brake gear; At this moment equalizing reservoir pressure and air main pressure are delivered in the row tail driver control capsule through the RS485 interface of locomotive operation monitor device (being called for short LKJ); After judging; Driver's control capsule is delivered to the locomotive host machine part with the information (comprising decompression time of origin and decompression amount etc.) of decompression through the RS422 interface, and the locomotive main frame carries out data exchange through 450MHz radio station and the 450MHz radio station in the train tail host that hangs over last vehicle of train; Train tail host is delivered to related data in the control unit of train tail host through the RS232 interface, the control unit decompression information that transmission comes according to locomotive is carried out air draft, decompression through controllable electromagnetic valve.
Train tail host can exchange like data such as tail wind pressure, power supply capacity, communication states through the 450MHz radio station with the locomotive main frame.
Monitoring comprises a server that is connected the Internet network with the standby maintenance system.This server receiver Main Engine sends to the controlled train tail working state of system data of Internet through GPRS network; Comprise: the position of train operation, locomotive end and the situation of controlled train tail host data exchange, the mode of operation of controlled train tail main frame; Comprise: the situation of change of tail wind pressure, the information such as mode of operation of current capacity of cell host and host computer communication module.
This server can be analyzed and be stored in the server the data that receive simultaneously, and the staff can the query and search recorded data, uses for controlled train tail system job and operating personal analysis.