CN117236730A - Scene-driven dispatching centralized system safety card control evaluation method - Google Patents
Scene-driven dispatching centralized system safety card control evaluation method Download PDFInfo
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Abstract
The invention provides a railway scene-driven dispatching centralized system safety card control evaluation method, which comprises the following steps: identifying operation scene danger according to the operation scene division of the dispatching centralized system, and determining a safety card control scheme; determining characteristic indexes of safety card control scheme evaluation of a dispatching centralized system according to the train passing capability of a railway station and a transportation benefit calculation method; constructing a safety card control scheme model of the dispatching centralized system by using a modeling language; and carrying out parameter setting and simulation on the model, collecting simulation data, and evaluating the passing capability and transportation benefit indexes of the station train corresponding to the safety card control scheme. By adopting the method of the invention, the safety card control scheme of the dispatching centralized system can be reasonably selected, thereby achieving the purpose of improving the passenger-cargo capacity and the operation benefit of the railway.
Description
Technical Field
The invention relates to the technical field of railway transportation, in particular to an evaluation method of a safety card control scheme of a railway dispatching centralized system.
Background
For railway transportation systems, driving safety and transportation benefit are the most important indexes for measuring the working quality of railway transportation. The railway dispatching command system is used as a central system of train driving organization, is developed into a new generation dispatching centralized system of a scattered self-discipline at present, and is an effective means for improving the automation level of railway dispatching command and improving the railway transportation safety and the transportation benefit.
However, the dispatch centralized system has multiple operating scenarios, each with multiple optional security card control schemes. For a specific operation scene, an effective evaluation method for maximally improving the railway transportation benefit is not available at present on the premise of ensuring the transportation safety by selecting a safety card control scheme.
Therefore, according to a specific operation scene, the influence of the safety card control scheme of the dispatching centralized system on the improvement of railway transportation safety and benefit is evaluated, and the selection of a proper safety card control scheme is a necessary way for improving railway passenger and cargo transportation capacity.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a scene-driven dispatching centralized system safety card control evaluation method, which comprises the following steps:
dividing a system operation scene in a dispatching set, and analyzing and determining the danger of the operation scene and a corresponding safety card control scheme;
calculating a railway transportation capacity evaluation index and a railway transportation benefit evaluation index, and determining characteristic indexes of safety card control scheme evaluation of a dispatching centralized system;
constructing a security card control scheme model of the dispatching centralized system;
and (3) carrying out parameter setting and simulation on the model, and evaluating the passing capability and transportation benefit of the station train corresponding to the safety card control scheme.
On the basis of the scheme, the operation scene refers to the running condition of a specific train;
under the condition of the specific train operation, a dispatching centralized system is required to complete specific operation, specific safety clamping and controlling measures are implemented, and safe and efficient train receiving and dispatching at the station is ensured.
Based on the scheme, the safety card control scheme is that the dispatching centralized system handles the adjustment of the train operation plan and the train route, and for the same operation scene, different safety card control schemes correspond to different train operation adjustment plans and train route sequences.
On the basis of the scheme, the calculation formula of the railway transportation capacity evaluation index Y is as follows:
wherein N is r And N d The number of the train receiving stations and the train sending stations in the time t are respectively.
On the basis of the scheme, the calculation formula of the evaluation index X of the railway transportation benefit is as follows:
wherein k is 1 、k 2 、…k m Benefit weight factors, N, of trains classified into type 1, type 2, … type m 1 、N 2 、…N m The number of trains of type 1, type 2 and … type m are sent to the station in time t;
for the same station, N 1 +N 2 +…+N m ＝N r +N d I.e. the sum of the number of pick-up and departure is equal to the sum of the number of trains of all types.
On the basis of the scheme, the dispatching centralized system safety card control scheme model consists of a safety card control scheme module, a station module and a train interval operation module;
the station module consists of a departure module and a receiving module;
the departure module carries out departure according to the train operation adjustment plan, and the station departure and the receiving are both constrained by the safety clamping control scheme.
Based on the scheme, the constraint is specifically a first constraint condition and a second constraint condition:
the first constraint condition is: the power-distributed motor train unit and the freight train are forbidden to meet in the section;
the second constraint condition is: and prohibiting handling of the relative direction simultaneous train receiving and the same direction simultaneous train sending and receiving under the following first condition or second condition:
the first situation is: within the braking distance outside the arrival signal machine, the arrival direction is a downhill grade exceeding 6 per mill, and the tail end of the vehicle receiving line is not provided with a separation device;
the second case is: when receiving and sending a passenger train, the train running monitoring device or the train with the fault of the rail car running control equipment and the train with the partially cut-off braking force of the motor train unit are connected, and the tail end of the train receiving line is not provided with a separation device.
On the basis of the above-mentioned solution, a computer device is provided, comprising a memory storing a computer program and a processor executing the steps of the above-mentioned method.
On the basis of the above-mentioned aspects, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the above-mentioned method.
On the basis of the scheme, a railway dispatching centralized system is provided, and the railway dispatching centralized system realizes the steps of the method when executing.
The invention has the beneficial effects that:
aiming at the safety card control requirement of a railway dispatching centralized system, the quantitative evaluation of a safety card control scheme is realized; by comparing the evaluation results of different security card control schemes in the same scene, a basis is provided for selecting a proper security card control scheme; by selecting an appropriate safety card control scheme, the operation efficiency of the railway dispatching centralized system is improved, thereby laying a foundation for further increasing the railway transportation capacity and improving the railway transportation benefit.
Drawings
The invention has the following drawings:
FIG. 1 is a schematic diagram of a security card control scheme evaluation model;
FIG. 2 is a flow chart of one embodiment of a method for security card control evaluation of a centralized system for railway dispatch.
Detailed Description
The present invention will be described in further detail with reference to fig. 1-2 and the detailed description of the invention, in order to make the objects, advantages and features of the invention more apparent.
The method for evaluating the safety card control of the railway dispatching centralized system takes the improvement of the railway transportation capacity and the transportation benefit as trigger conditions, and quantitatively evaluates the safety card control scheme to be evaluated according to the operation scene. The capacity (station train passing capability) refers to the number of trains received by a station (or a group of stations) in a certain time period in a jurisdiction of the dispatch centralized system. The transportation benefit can be determined according to the benefit weight factor of each type of train and the number of trains. In general, the higher the transport capacity, the higher the railway transportation benefit. The operation scene refers to the specific train operation condition, the specific operation is required to be completed by the dispatching centralized system, specific safety clamping and controlling measures are implemented, and safe and efficient train receiving and sending of the station is ensured, such as the scenes that the power-distributed motor train unit and the freight train are forbidden to meet, the opposite directions are forbidden to be processed and the train receiving and sending of the same party are forbidden to be processed and the like. The safety card control scheme is embodied in that a dispatching centralized system carries out adjustment on a train operation plan and train route handling. For the same operation scene, different safety card control schemes correspond to different train operation adjustment plans and train route sequences. Aiming at different safety card control schemes, calculating the capability of receiving and dispatching trains of the station, and evaluating the benefit of the safety card control scheme. And selecting a proper safety card control scheme for an operation scene according to the benefit evaluation result of the safety card control scheme, so as to improve the railway transportation capacity.
The calculation formula of the railway transportation capacity (certain station) evaluation index Y is shown as formula (1), wherein N is as follows r And N d The number of the train receiving stations and the train sending stations in the time t are respectively.
The calculation formula of the evaluation index X of the railway transportation benefit (certain station) is shown as formula (2), wherein k is as follows 1 、k 2 、…k m The benefit weight factors of the trains classified into type 1, type 2 and … (the train types can be classified according to the requirements, such as rapid transit buses, general transit buses, temporary buses, freight trains and the like), and N 1 、N 2 、…N m The number of trains of type 1, type 2 and … type m are dispatched to the station in time t.
For the same station, there is a relationship shown in formula (3), that is, the sum of the number of cars and the number of departure is equal to the sum of the numbers of all types of trains.
N 1 +N 2 +…+N m ＝N r +N d (3)
After the evaluation index is determined, the security card control scheme to be evaluated is modeled, and the model structure is shown in fig. 1. The model mainly comprises a safety card control scheme module, a station module and a train interval operation module, wherein the station module comprises a departure module and a receiving module, the departure module carries out departure according to a train operation adjustment plan, and the station departure and the receiving are both constrained by the safety card control scheme.
Specifically, the power-distributed motor train unit and the freight train are prohibited from meeting in an interval; secondly, the simultaneous train receiving in opposite directions and the simultaneous train sending in the same direction are forbidden under the following two conditions: 1) Within the braking distance outside the arrival signal machine, the arrival direction is a downhill grade exceeding 6 per mill, and the tail end of the vehicle receiving line is not provided with a separation device; 2) When receiving and sending a passenger train, the train running monitoring device or the train with the fault of the rail car running control equipment and the train with the partially cut-off braking force of the motor train unit are connected, and the tail end of the train receiving line is not provided with a separation device.
The security card control scheme assessment model shown in fig. 1 can be constructed by using different modeling languages (such as Petri net, etc.), and then the capacity and the transportation benefit under the security card control scheme can be assessed by using model simulation data and formulas (1) and (2).
Example 1
An example of the present invention will be described below, with the understanding that the present invention is not limited to a specific embodiment.
Referring to fig. 2, a specific embodiment of a railway dispatch centralized system security card control scheme evaluation method according to the present invention. The method comprises the following nine steps of:
and step S1, when the security card control scheme of the railway dispatching centralized system needs to be evaluated, firstly analyzing the operation scene of the dispatching centralized system to determine an operation scene set needing to be evaluated.
Step S2: and judging whether all scenes in the operation scene set are evaluated.
Step S3: if the step S2 is not, selecting an operation scene to be evaluated.
Step S4: for each operational scenario, a set of optional security card control schemes is determined.
Step S5: and judging whether the schemes in the security card control scheme set are all evaluated.
Step S6: if the step S5 is not, selecting a safety card control scheme to be evaluated.
Step S7: according to the selected security card control scheme to be evaluated, a security card control evaluation model is constructed, parameter setting is carried out on the constructed security card control evaluation model, then model simulation is carried out, and simulation data are collected.
Step S8: and according to the collected model simulation data, calculating a railway capacity index Y (formula (1)) and a transportation benefit index X (formula (2)), and evaluating the superiority and inferiority of the safety clamping control scheme. Then, returning to step S5, it is determined whether all the schemes in the security card control scheme set have been evaluated. If no in S5, the steps S6, S7, S8 are repeated. If yes, the step S5 is returned to step S2, and it is determined whether all the scenes in the operation scene set have been evaluated. If no in S2, the steps S3, S4, S5 are repeated.
Step S9: if yes, the security card control scheme evaluation of the system in the call set is finished.
The above embodiments are only for illustrating the present invention and not for limiting the present invention, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the present invention, so that all equivalent technical solutions fall within the scope of the present invention, which is defined by the claims.
What is not described in detail in this specification is prior art known to those skilled in the art.
Claims (10)
1. The scene-driven dispatching centralized system safety card control evaluation method is characterized by comprising the following steps of:
dividing a system operation scene in a dispatching set, and analyzing and determining the danger of the operation scene and a corresponding safety card control scheme;
calculating a railway transportation capacity evaluation index and a railway transportation benefit evaluation index, and determining characteristic indexes of safety card control scheme evaluation of a dispatching centralized system;
constructing a security card control scheme model of the dispatching centralized system;
and (3) carrying out parameter setting and simulation on the model, and evaluating the passing capability and transportation benefit of the station train corresponding to the safety card control scheme.
2. The scene-driven dispatch centralized system security card control evaluation method of claim 1, wherein the operation scene refers to a specific train operation condition;
under the condition of the specific train operation, a dispatching centralized system is required to complete specific operation, specific safety clamping and controlling measures are implemented, and safe and efficient train receiving and dispatching at the station is ensured.
3. The scene-driven safety control evaluation method of the dispatching centralized system according to claim 1, wherein the safety control scheme is that the dispatching centralized system handles adjustment of a train operation plan and train route, and different safety control schemes correspond to different train operation adjustment plans and train route sequences for the same operation scene.
4. The method for security controlled evaluation of a scene driven dispatch centralized system of claim 1,
the calculation formula of the railway transportation capacity assessment index Y is as follows:
wherein N is r And N d The number of the train receiving stations and the train sending stations in the time t are respectively.
5. The method for security controlled evaluation of a scene driven dispatch centralized system of claim 1,
the calculation formula of the evaluation index X of the railway transportation benefit is as follows:
wherein k is 1 、k 2 、...k m The benefit weight factors of trains classified as type 1, type 2,. Type m, N 1 、N 2 、...N m The number of trains of type 1, type 2 and … type m are sent to the station in time t;
for the same station, N 1 +N 2 +…+N m ＝N r +N d I.e. the sum of the number of pick-up and departure is equal to the sum of the number of trains of all types.
6. The method for security controlled evaluation of a scene driven dispatch centralized system of claim 1,
the dispatching centralized system safety card control scheme model consists of a safety card control scheme module, a station module and a train interval operation module;
the station module consists of a departure module and a receiving module;
the departure module carries out departure according to the train operation adjustment plan, and the station departure and the receiving are both constrained by the safety clamping control scheme.
7. The method for security controlled evaluation of a scene driven dispatch centralized system of claim 6,
the constraint is specifically a first constraint condition and a second constraint condition:
the first constraint condition is: the power-distributed motor train unit and the freight train are forbidden to meet in the section;
the second constraint condition is: and prohibiting handling of the relative direction simultaneous train receiving and the same direction simultaneous train sending and receiving under the following first condition or second condition:
the first situation is: within the braking distance outside the arrival signal machine, the arrival direction is a downhill grade exceeding 6 per mill, and the tail end of the vehicle receiving line is not provided with a separation device;
the second case is: when receiving and sending a passenger train, the train running monitoring device or the train with the fault of the rail car running control equipment and the train with the partially cut-off braking force of the motor train unit are connected, and the tail end of the train receiving line is not provided with a separation device.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 7 when the computer program is executed.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.
10. A railway dispatch centralized system, wherein the railway dispatch centralized system performs the steps of the method of any one of claims 1 to 7.
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| CN202310919391.6A CN117236730A (en) | 2023-07-25 | 2023-07-25 | Scene-driven dispatching centralized system safety card control evaluation method |
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