CN107235054B - Freight train departure method based on CBTC (communication based train control) system and CBTC system - Google Patents
Freight train departure method based on CBTC (communication based train control) system and CBTC system Download PDFInfo
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Abstract
The invention relates to the technical field of rail transit signals, and discloses a freight train departure method based on a CBTC (communication based train control) system and the CBTC system, wherein the CBTC system comprises the following components: the train-mounted equipment and the dispatching centralized system of the train comprise: the vehicle-mounted equipment sends a request for inquiring a train running diagram to the dispatching centralized system; the dispatching centralized system acquires a train operation plan corresponding to the train from a train plan operation diagram according to the request and sends the train operation plan to the vehicle-mounted equipment; the vehicle-mounted equipment prepares for departure according to the train operation plan; and under the condition that the train is ready to be dispatched and finished, the dispatching centralized system transacts a dispatching route for the train according to the train operation plan. The invention can eliminate or greatly reduce human participation, complete automatic departure, effectively reduce the labor intensity of related personnel while improving the departure efficiency of the freight train, and meet the development direction of heavy load and high density of the freight railway.
Description
Technical Field
The invention relates to the technical field of rail transit signals, in particular to a freight train departure method based on a CBTC (communication based train control) system and the CBTC system.
Background
Train departure is an important component of railway train organization, and needs close cooperation of train commanders and drivers, which directly relates to the running efficiency and the running safety of a line. Different lines, different signal system systems and different dispatching methods are different. The existing freight railway is totally closed fixedly, the traffic is displayed according to the signal machine, the traffic commander at the station handles the approach after having the departure condition, the driver is informed manually through the wireless intercom device, the driver completes the relevant process (such as a brake simple test) of departure according to the display of the ground signal machine, and the train is started.
However, the freight train has the characteristics of long train length, long starting time, slow brake response and the like, and the train can occupy a main line and a throat area when the train is sent out, so that a subsequent train cannot pass through the train and shunting operation in the station can be influenced, and the passing capacity of the whole line can be influenced by the length of the sending time of the station.
In summary, the existing departure method of the freight railway train mainly has the following disadvantages:
1. the system completely depends on the train-ground joint control of a station and a driver, manually informs departure time, has no departure countdown prompt, and has high labor intensity for a driver;
2. the ground signal is a main signal, and a driver must wait for the ground signal to be opened and finish a series of operations before the train can be driven, so that the time consumed from the stop of the train to the start of the train is longer, and if the departure position is far away from the outbound signal, the start time is longer.
Disclosure of Invention
Aiming at the technical problems of low departure efficiency of freight trains existing in the prior art, the invention provides a freight train departure method based on a CBTC system, and the CBTC system comprises the following steps: the train-mounted equipment and the dispatching centralized system of the train comprise: the vehicle-mounted equipment sends a request for inquiring a train running diagram to a dispatching centralized system; the dispatching concentration system acquires a train operation plan corresponding to the train in a train plan operation diagram according to the request and sends the train operation plan to the vehicle-mounted equipment; the vehicle-mounted equipment prepares for departure according to the train operation plan; and under the condition that the train is ready to be dispatched and finished, the dispatching centralized system transacts a dispatching route for the train according to the train operation plan.
Preferably, the CBTC system further comprises: the radio block center, the method further comprises: under the condition that the train is in a complete monitoring mode, the vehicle-mounted equipment sends train state information to a wireless block center; the radio block center calculates the driving permission for the train according to the train running state information and the access condition in front of the train and sends the driving permission to the vehicle-mounted equipment of the train; and the vehicle-mounted equipment dispatches the vehicle according to the driving permission.
Preferably, the vehicle-mounted device determines to switch the train to operate in a full monitoring mode under the condition that the train operation state information is acquired.
Preferably, the CBTC system further comprises: an interlock, the method further comprising: and the radio block center determines the access condition in front of the train through the interlocking device.
Preferably, the train operation state information includes a train position and an operation direction.
According to another aspect of the present invention, there is also provided a CBTC system, including: the train-mounted equipment is used for sending a request for inquiring a train working diagram to the dispatching centralized system; the dispatching concentration system is used for acquiring a train operation plan corresponding to the train in a train plan operation diagram according to the request and sending the train operation plan to the vehicle-mounted equipment; the vehicle-mounted equipment is also used for preparing departure according to the train operation plan; and the dispatching centralized system is also used for handling the departure route for the train according to the train operation plan under the condition that the train is ready for departure.
Preferably, the CBTC system further comprises: the radio block center, the method further comprises: the vehicle-mounted equipment is also used for sending train state information to a wireless blocking center through the vehicle-mounted equipment under the condition that the train is in a complete monitoring mode; the radio block center is used for calculating the driving permission for the train according to the train running state information and the access condition in front of the train and sending the driving permission to the vehicle-mounted equipment of the train; and the vehicle-mounted equipment is also used for dispatching the vehicle according to the driving permission.
Preferably, the vehicle-mounted device is further configured to: and under the condition of acquiring the running state information of the train, determining to switch the train to run in a complete monitoring mode.
Preferably, the CBTC system further comprises: an interlock for providing a route condition ahead of the train to the radio block center.
Preferably, the train operation state information includes a train position and an operation direction.
Through the technical scheme, train-ground communication of the trains in the freight railway can be realized based on the CBTC system, human participation is eliminated or greatly reduced, and automatic departure is completed, so that the departure efficiency of the freight train is improved, and meanwhile, the labor intensity of related personnel is effectively reduced, and the development direction of heavy load and high density of the freight railway is met.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic block diagram of an exemplary CBTC system in accordance with an embodiment of the present invention;
FIG. 2 is a schematic illustration of an departure process for an example freight train, according to an embodiment of the present invention;
FIG. 3 is a flow diagram of a freight train departure process performed by an exemplary CBTC system in accordance with an embodiment of the present invention; and
fig. 4 is a flowchart illustrating an departure method of a freight train based on a CBTC system according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In order to solve the technical problems in the prior art, the inventor of the present application considers that the departure process needs to be simplified, manual operation is reduced, and the automation level is improved. Secondly, need upgrading train control system, the train driver should be given first place to on-vehicle signal display, reduces looking out of ground semaphore, and the two combines like this, and the efficiency of dispatching a train just can obtain effective improvement.
The invention provides a freight train departure method based on a CBTC (communication based train control) system, which aims to improve the departure efficiency and the automation degree of a train. A CBTC (Communication-Based Train Control) system is a Communication-Based Train operation Control system, and for a freight railway, a Train-mounted device, a Radio Block Center (RBC) installed on the ground, a dispatch center system (CTC), and a station interlock device need to be installed in a Train. The idea of the invention will be described in more detail below in various embodiments:
FIG. 1 is a schematic block diagram of an exemplary CBTC system in accordance with an embodiment of the present invention. FIG. 2 is a schematic illustration of an example freight train departure process according to one embodiment of the present invention. As shown in fig. 1, the CBTC system 1000 may include: a train waiting for departure, and an on-board device 100, a dispatch center system CTC 200, a radio block center RBC300, and an interlock device 400 of the train. In the system, the train and the ground realize two-way communication in a wireless mode, and the train can obtain a train operation plan from the ground in real time. Freight railway departure under the CBTC system is mainly divided into two scenes: and dispatching the train which does not establish train-ground communication (hereinafter referred to as UT train) and dispatching the train which establishes train-ground communication (hereinafter referred to as CT train).
(1) UT train departure
As shown in fig. 2, before the train 1 starts from the start point, the CBTC system has not acquired the initial position of the train, and at this time, the train is a UT train. The train sends a request for inquiring a train working diagram to a dispatching centralized system through the vehicle-mounted equipment of the train, and the request is marked with the locomotive number of the train.
Thereafter, the CTC 200 may acquire a train operation plan corresponding to the train 1 (e.g., corresponding to the locomotive number) in the train operation plan map according to the request (e.g., the locomotive number of the train 1 therein) and transmit the train operation plan to the on-board device 100. The train operation diagram specifies the sequence of the sections occupied by the train, the departure, arrival or passing time of the train at each station, the operation time of the sections, the stop time of the station, the weight and length of the train, and other train operation plans.
Then, the in-vehicle apparatus 100 may prepare departure according to the above-described train operation plan, for example, display a departure countdown on a human machine interface (DMI), and the driver may prepare departure according to the countdown.
Finally, the CTC 200 handles the departure route for the train according to the train operation schedule when the train is ready for departure and is complete (i.e., departure time arrives). As shown in fig. 2, where the arrow direction indicates the train running direction, the dispatch center system CTC 200 handles the departure route 3 for the train 1, and a driver can manually control (for example, departure in a visual driving mode) or automatically control the train running according to the display of the ground signal machine 2, so that the train enters a safety monitoring mode after passing through the ground transponder to acquire the train position and identify the train running direction, and then the train enters a CT train departure mode.
(2) CT vehicle dispatching
The train runs to an intermediate station to stop (for example, situations such as avoidance and driver change) in the full monitoring mode, then does not exit the moving block, the train-ground communication is not interrupted, the train continues to send out in the full monitoring mode, and the scene is CT train sending.
Similar to the departure of the UT train, a driver can finish the relevant operation of departure in advance according to departure countdown displayed by the DMI, and the dispatching centralized system CTC 200 automatically handles the departure route for the train when the departure time is up.
After that, the vehicle-mounted device 100 sends train state information to the radio block center through the vehicle-mounted device when the train is in the full monitoring mode, for example, when the vehicle-mounted device 100 acquires train state information (for example, a train position is obtained from a ground transponder and a running direction is identified according to a transponder code), it may be determined that the train is switched to run in the full monitoring mode.
Then, the radio block center RBC300 may calculate a driving permission for the train according to the train operation state information and the route condition in front of the train, and send the driving permission to the vehicle-mounted device 100 of the train, wherein the interlock device 400 may provide the route condition in front of the train to the radio block center RBC 300. Finally, the vehicle-mounted device 100 can issue the vehicle according to the driving license.
Specifically, the radio block center RBC300 calculating the train permission for the train may include: acquiring position information, running direction information, distance measurement errors and the like reported by a train; calculating the braking distance of the train under the current working condition according to the information reported by the train; checking the condition of the route ahead of the train through an interface with the interlocking device according to the train position information: the signal machine is opened, the sections are locked, and the turnouts within the route range are all at the positions required by the route; and calculating the driving permission for the train, wherein the starting point is set as the tail position of the safety train of the train, and the terminal point is set as the terminal point of the off-station access.
By adopting the embodiment, the radio block center RBC300 is interfaced with the interlocking device 400, so that the transaction state of the access road and the state of the ground signal can be acquired, and a driver can directly display the DMI as a driving basis without observing the ground signal machine. At this time, the ground radio block center RBC300 can calculate the train operation permission (MA) in real time according to the current position and the current operation direction of the train and send the calculated MA to the train, and a driver can complete the train operation without joint control with ground crews.
Fig. 3 is a general flow chart of a freight train departure process performed by an exemplary CBTC system according to an embodiment of the present invention, and as shown in fig. 3, the specific departure process may include the following steps:
step S21, the vehicle-mounted equipment sends a request for inquiring the train running chart to the dispatching concentration system;
step S22, the dispatching concentration system obtains a train operation plan corresponding to the train in a train plan operation diagram according to the request and sends the train operation plan to the vehicle-mounted equipment;
step S23, the vehicle-mounted equipment prepares to departure according to the train operation plan, namely whether departure countdown is displayed in the DMI or not, or whether departure time is less than a threshold value T or not is checked, wherein T is departure preparation time required under the current train formation;
step S24, when the departure countdown is started or the check distance departure time is less than the threshold T, the train is ready to depart, for example, the driver completes the relevant operation before departure; otherwise, the process returns to step S21.
And step S25, under the condition that the preparation of the train for departure is completed, the dispatching centralized system transacts a departure route for the train according to the train operation plan.
Step S26, the vehicle-mounted equipment judges whether the train enters a complete monitoring mode;
step S27, when the train is in the complete monitoring mode, the vehicle-mounted device sends train state information to a radio block center, the radio block center calculates the driving permission for the train according to the train running state information and the access condition in front of the train and sends the driving permission to the vehicle-mounted device of the train, and then step S28 is executed, and the vehicle-mounted device sends the train according to the driving permission; on the contrary, in the case where the train is not in the full monitoring mode, a manual control is performed, for example, the driver sends the train in the visual driving mode, that is, step S29 is performed.
The invention provides a new train dispatching method based on mobile block, which utilizes the train-ground wireless communication of a CBTC system to better replace manual train-ground joint control and improve the automation level and the safety factor of train dispatching. Compared with the existing fixed block freight train departure, the method has the following characteristics:
(1) the DMI of the train automatically displays departure time, a driver can complete departure operations such as a brief test in advance before a departure approach is established, and a motor train is advanced, so that the problems of long departure time and long throat area occupation of a freight train are solved;
(2) the departure route is automatically handled, the vehicle-mounted equipment DMI automatically prompts a driver to depart, the station personnel do not need to repeatedly carry out vehicle-ground joint control with the driver, and the departure operation can be finished in parallel with other operations;
(3) the CBTC system automatically calculates the driving permission for the train, and a driver does not need to watch ground signals repeatedly, so that the labor intensity of the driver is reduced;
(4) the vehicle-mounted equipment can display the speed limit on the DMI in real time according to the current condition of the train, the risk that the train emits into the signal machine when the departure signal is closed due to faults is reduced, and the safety factor of train departure is improved.
Fig. 4 is a flowchart illustrating an example method of departure of a freight train based on a CBTC system, which may include, as described above, according to an embodiment of the present invention: train and dispatch centralization system, the method may include the steps of:
step S11, the vehicle-mounted equipment sends a request for inquiring a train operation diagram to a dispatching concentration system;
step S12, the dispatching concentration system obtains a train operation plan corresponding to the train in a train plan operation diagram according to the request and sends the train operation plan to the vehicle-mounted equipment;
step S13, the vehicle-mounted equipment prepares for departure according to the train operation plan; and
and step S14, under the condition that the preparation of the train for departure is completed, the dispatching centralized system transacts a departure route for the train according to the train operation plan.
Preferably, the CBTC system may further include: the radio block center, the method may further comprise: under the condition that the train is in a complete monitoring mode, the vehicle-mounted equipment sends train state information to a wireless block center; the radio block center calculates the driving permission for the train according to the train running state information and the access condition in front of the train and sends the driving permission to the vehicle-mounted equipment of the train; and the vehicle-mounted equipment dispatches the vehicle according to the driving permission.
Preferably, the vehicle-mounted device determines to switch the train to operate in a full monitoring mode under the condition that the train operation state information is acquired.
Preferably, the CBTC system may further include: an interlock, the method may further comprise: and the radio block center determines the access condition in front of the train through the interlocking device.
Preferably, the train operation state information may include a train position and an operation direction.
It should be understood that, the above-mentioned specific embodiments of the freight train departure method based on the CBTC system have been described in detail in the embodiment of the exemplary CBTC system (as described above), and are not described herein again. In addition, it should be understood that the departure method and the CBTC system provided by the present invention are also applicable to other rail transit needing departure, such as passenger trains.
By adopting the freight train dispatching method based on the CBTC system and the CBTC system provided by the invention, train-ground communication of trains in freight railways can be realized based on the CBTC system, human participation is eliminated or greatly reduced, and automatic dispatching is completed, so that the dispatching efficiency of the freight trains is improved, and meanwhile, the labor intensity of related personnel is effectively reduced, thereby being in line with the development direction of heavy load and high density of the freight railways.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. A freight train departure method based on a CBTC system comprises the following steps: the train-mounted equipment and the dispatching centralized system are characterized in that the method comprises the following steps:
the vehicle-mounted equipment sends a request for inquiring a train running diagram to a dispatching centralized system;
the dispatching concentration system acquires a train operation plan corresponding to the train in a train plan operation diagram according to the request and sends the train operation plan to the vehicle-mounted equipment;
the vehicle-mounted equipment prepares for departure according to the train operation plan;
when the train is ready to be dispatched, the dispatching centralized system transacts a dispatching route for the train according to the train operation plan,
the CBTC system further comprises: the radio block center, the method further comprises:
under the condition that the train is in a complete monitoring mode, the vehicle-mounted equipment sends train state information to a wireless block center;
the radio block center calculates the driving permission for the train according to the train running state information and the access condition in front of the train and sends the driving permission to the vehicle-mounted equipment of the train, wherein the position information, the running direction information and the distance measurement error reported by the train are obtained, and the braking distance under the current working condition is calculated for the train according to the information reported by the train;
and the vehicle-mounted equipment dispatches the vehicle according to the driving permission.
2. The method according to claim 1, wherein the vehicle-mounted equipment determines to switch the train to operate in a full monitoring mode when the train operation state information is acquired.
3. The method of claim 1, wherein the CBTC system further comprises: an interlock, the method further comprising:
and the radio block center determines the access condition in front of the train through the interlocking device.
4. The method of claim 2 or 3, wherein the train operation state information includes a train position and an operation direction.
5. A CBTC system, comprising:
the train-mounted equipment is used for sending a request for inquiring a train working diagram to the dispatching centralized system;
the dispatching concentration system is used for acquiring a train operation plan corresponding to the train in a train plan operation diagram according to the request and sending the train operation plan to the vehicle-mounted equipment;
the vehicle-mounted equipment is also used for preparing departure according to the train operation plan; and
the dispatch centralization system is further configured to handle a departure approach for the train according to the train operating plan when the train is ready for departure completion,
the CBTC system further comprises: the center of the wireless block is provided with a wireless block center,
the vehicle-mounted equipment is also used for sending train state information to a wireless blocking center through the vehicle-mounted equipment under the condition that the train is in a complete monitoring mode;
the radio block center is used for calculating the driving permission for the train according to the train running state information and the access condition in front of the train and sending the driving permission to the vehicle-mounted equipment of the train, wherein the position information, the running direction information and the distance measurement error reported by the train are obtained, and the braking distance under the current working condition is calculated for the train according to the information reported by the train;
and the vehicle-mounted equipment is also used for dispatching the vehicle according to the driving permission.
6. The system of claim 5, wherein the onboard device is further configured to:
and determining to switch the train to operate in a full monitoring mode under the condition of acquiring train operation state information.
7. The system of claim 5, wherein the CBTC system further comprises: an interlock for providing a route condition ahead of the train to the radio block center.
8. The system of claim 6 or 7, wherein the train operation state information includes a train position and an operation direction.
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| CN108045402A (en) * | 2017-12-29 | 2018-05-18 | 中国铁路设计集团有限公司 | Signal system start indicator device integrated morphology based on train-ground communication |
| CN109677466B (en) * | 2019-01-18 | 2024-04-16 | 卡斯柯信号有限公司 | Automatic control system of light train for China heavy haul railway |
| CN110733531B (en) * | 2019-09-25 | 2021-09-10 | 交控科技股份有限公司 | Train control method and system based on mobile block |
| CN112598197B (en) * | 2021-01-05 | 2024-01-30 | 株洲中车时代电气股份有限公司 | Running control method and device of freight train, storage medium and electronic equipment |
| CN115092213B (en) * | 2022-05-06 | 2023-10-31 | 卡斯柯信号有限公司 | In-station train normal departure method based on mobile block train control system |
| CN117485408A (en) * | 2022-07-25 | 2024-02-02 | 比亚迪股份有限公司 | Method for adjusting departure time, storage medium, vehicle-mounted controller and railway vehicle |
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| CN101397024A (en) * | 2008-11-12 | 2009-04-01 | 卡斯柯信号有限公司 | Dispatch and command emergency system of dispatching terminal and control method thereof |
| US8200380B2 (en) * | 2009-05-19 | 2012-06-12 | Siemens Industry, Inc. | Method and apparatus for hybrid train control device |
| CN102082819B (en) * | 2010-12-15 | 2012-12-19 | 中国神华能源股份有限公司 | Moving block system for train |
| CN205951999U (en) * | 2016-07-13 | 2017-02-15 | 吴妮妮 | Communication device for train |
| CN106541965B (en) * | 2016-10-25 | 2018-06-05 | 交控科技股份有限公司 | A kind of automatic train control method suitable for multi-state |
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