JP2006015867A - Simulation device for vehicle running and vehicle running prediction system using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simulation device for vehicle running which can structure simulation work, and can realize the simulation which enables comprehensive evaluations of the elements related to the running of the vehicle, and to provide a vehicle running prediction system using the simulation device for vehicle running. <P>SOLUTION: The travelling path of a train is divided into a plurality of sections. The modules A, B, C, for a straight line, a branch, and a railroad crossing, respectively, which are prepared beforehand in accordance with the form of the travelling path of each section, are each allocated to each section. The communications channels among each module A, B, C are set in the same way as the condition of the connection of the sections of the travelling path, and the travelling conditions of the train are set. The information on the control of the train is transmitted and received among each module A, B, C with the simulated travelling of the train. Thus, the simulation device for vehicle running and the vehicle running prediction system using the simulation device for vehicle running are constructed to simulate the travelling conditions of the train. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mobile operation simulator that can perform a simulation by comprehensively evaluating operation-related elements on a travel route of a mobile. The present invention also relates to a mobile operation prediction system that performs operation prediction of a mobile object using this mobile operation simulator.

  Conventionally, various mobile operation simulators have been proposed that change or generate train operation diagrams based on mathematical programming, for example.

For example, when the schedule schedule of a train is disturbed, a forecast schedule from the current time is created, an execution schedule is created from the forecast schedule and the operation schedule, and the unassigned train of the crew is determined from this execution schedule and the crew's operation result information If it occurs, the execution schedule is re-created (for example, see Patent Document 1), and the operation arrangement information that was performed when the train operation schedule was disturbed in the past is stored and saved. There is one that performs driving arrangement with reference to past driving arrangement information stored and saved against disturbance (for example, see Patent Document 2).
JP 2000-177589 A JP-A-6-247310

  However, the above-described conventional example predicts the train operation by simulating the train operation state based on the mathematical programming method. In the method performed based on the mathematical programming method, the traveling of the moving body (for example, the train) is performed. It is necessary to set conditions according to the shape of the road, and modeling must be performed for each traveling road having a different shape. In addition, for example, when the train operation is restored when a trouble occurs, the validity of the operation plan to be created needs to comprehensively evaluate various train operation-related elements in the entire travel route. As described above, in the method of paying attention to individual elements (operations of crew members), it is not known what kind of influence is exerted on other unrelated elements related to train operation. For example, if attention is paid only to train operation efficiency, there is a possibility that the opening time of a railroad crossing will be extremely shortened. In addition, when the train operation status is predicted based on the past history as in Patent Document 2, if a case that does not exist in the history occurs, the recovery process may be delayed.

  The present invention has been made paying attention to the above problems, and an object of the present invention is to provide a mobile operation simulator that can easily execute a simulation that comprehensively evaluates operation-related elements on the travel route of a mobile object. And Moreover, it aims at providing the mobile body operation | movement prediction system which performs operation prediction of a mobile body using this mobile body operation simulation apparatus.

  For this reason, the mobile operation simulator of the present invention according to claim 1 divides the travel path of the mobile body into a plurality of sections, and each of the travel path modules prepared in advance according to the travel path configuration of each section. And assigning to each section, the communication path between each travel path module is set to be the same as the section connection state of the travel path, and according to the preset travel condition of the mobile body, The control information is transmitted and received to simulate the traveling state of the moving body.

  In such a configuration, the travel condition of the mobile body is set in the travel path module connected in the same manner as the connected state of each section of the mobile body travel path. Each travel path module transmits / receives control information of the moving body to and from the adjacent module according to the set travel conditions, simulates travel control of the mobile body on the travel path, and simulates the travel state of the mobile body.

  According to a second aspect of the present invention, there is provided a moving body module having the traveling condition of the moving body as attribute data, and the traveling condition of the moving body is set for the traveling path module and the traveling state of the moving body It is preferable to have a configuration that simulates the above.

  According to a third aspect of the present invention, it is preferable that unique data such as a vehicle length of the moving body and traveling performance is set as attribute data in the moving body module.

  According to a fourth aspect of the present invention, it is preferable that unique data such as section length, gradient, curvature, etc. of the allocated section is set as attribute data in the travel road module.

  The mobile operation prediction system of the present invention according to claim 5 is a simulation in which the master is different for a plurality of slaves having the function of the mobile operation simulation device according to any one of claims 1 to 4. Each of the slaves is assigned in parallel, and each of the slaves simulates the traveling state of the mobile body according to the simulation conditions assigned by the master using the function of the mobile body movement simulation device. The configuration is such that the operation status of the moving object is predicted.

  In such a configuration, different simulation conditions are assigned in parallel from the master to a plurality of slaves having the function of the mobile operation simulator of the present invention. Each slave predicts the operation status of the mobile body by simulating the travel status of the mobile body according to the simulation conditions assigned by the master using the function of the mobile operation simulation device. Thereby, it becomes possible to obtain in parallel a plurality of mobile operation predictions under different simulation conditions with respect to the operation status of the mobile object at each slave.

  According to a sixth aspect of the present invention, the slave includes a changeable hardware processing circuit for specific operation, the master includes a plurality of change data for the hardware processing circuit in advance, and the master is assigned to each slave. When allocating the simulation conditions, it is preferable that data for change for changing the hardware processing circuit of each slave to an arithmetic processing circuit suitable for the allocated simulation conditions is set in each slave.

  As in claim 7, the master has the function of the mobile operation simulator according to any one of claims 1 to 4, and monitoring information of monitoring means for monitoring the actual operation status of the mobile object This is a configuration that simulates the traveling status of a moving body by detecting the occurrence of a driving trouble on a moving body based on the driving conditions of the moving body. It is preferable to have a configuration that predicts and presents the operation recovery status of the moving object by simulating the operation recovery status when the trouble is resolved.

  In the configuration of claim 7, as in claim 8, the operation recovery situation simulation is performed both when the operation plan of the moving object is not changed and when it is changed, and when it is changed, it is set by the master. It may be configured to predict and present the operation recovery status of the moving object based on the changed condition.

  As in claim 9, when the actual operation status of the moving object is normal, each sleeve has an operation recovery plan corresponding to a predetermined temporary operation of the moving object, assuming that a trouble occurs. Or it is good to set it as the structure which performs arithmetic processing, such as a regular operation plan.

  It is good to set it as the structure which contains the opening time of a level crossing as an evaluation element of the said operation condition to predict.

  As described above, according to the moving body operation simulating apparatus of the present invention, it is possible to change the moving body for various traveling paths only by changing the connection state of the communication path of the traveling path module according to the shape of the traveling path to be simulated. Therefore, it is not necessary to perform modeling for each traveling route, and it is possible to systematize the simulation of a moving object. In addition, by setting the control conditions for operation-related elements in the corresponding route module, it is possible to simulate the driving situation in consideration of various operation-related elements, and to perform a comprehensive evaluation of the operation-related elements. .

  Moreover, according to the mobile operation prediction system of the present invention, a plurality of mobile operation prediction results under different simulation conditions can be obtained in parallel by a plurality of slaves, and a large number of operation predictions can be performed in a short time. it can. Therefore, for example, the operation recovery of the moving body after the trouble occurs can be quickly performed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram showing an embodiment of a mobile operation simulator according to the present invention, and an example of a train operation simulator as a mobile.

  In FIG. 1, the train operation simulation apparatus according to the present embodiment includes a straight line module A, a branching module B, a railroad crossing module C, a train module D, and a station module E. . The straight line module A, the branching module B, and the railroad crossing module C as the travel path modules are respectively assigned to the sections corresponding to the travel path forms of the sections obtained by dividing the travel path in the train control section into a plurality of sections. The communication paths 6 of the modules A, B, and C are set to be the same as the connection state of the section, and control information is transmitted and received between adjacent modules according to the running condition of the simulation target train, and the running situation of the train is simulated. .

  The connection state of the communication path 6 of the module shown in FIG. 1 corresponds to the travel path of FIG. 2, and the travel path is divided into a plurality of sections for each track circuit. In FIG. 2, 1 is a traffic light, 2 is a branching device, 3 is a railroad crossing, 4 is a station, and 5 is a train. Note that each communication path 6 has a number corresponding to the number of input / output signals, but in FIG. 1, it is simply shown by one bidirectional arrow line.

  The train control information transmitted / received between the module A for straight line, the module B for branching, and the module C for level crossing is adjacent to the traveling direction of the train with a signal indicating that there is no traveling train. It is a progress permission signal which reports to the front side adjacent section with respect to the advancing direction of a train with the progress train absence confirmation signal which reports to an adjacent section, and the signal which shows permitting progress. In addition, the straight line module A assigned to the straight section without branching / merging in the section is set with the control condition of the traffic light 1, and the branch module B assigned to the branch section including the branching device 2 in the section is changed by the switching of the branching device 2. The control condition for the crossing machine is set, and the control condition for the circuit breaker is set for the crossing module C. And the said control conditions (signal lighting permission, switch switch permission, circuit breaker rise permission, etc.) of each module A, B, C are the control information received from the condition of the presence or absence of the train of the own section, and an adjacent module. Determined in association. Further, in the straight line module A, the branching module B, and the crossing module C, the unique data of the assigned section such as the section length, the gradient, and the curvature is set as attribute data.

  In the train module D, which is a moving body module, the train vehicle length, travel performance, and operation plan are set as attribute data. As the operation plan, for example, data such as a destination, a stop station, a stop number of a station, a scheduled passage time, and a meeting with another train are set. Further, the station module E sets, for example, the number of passengers, the congestion status, the train waiting status, and the like as attribute data. And the signal path | route of the module D for trains and the module E for stations connects with the module for driving paths relevant to self at the time of simulation, and transmits / receives control information.

Next, the simulation operation of the train operation simulation device of this embodiment will be described.
Depending on the attribute data such as section length, gradient, curvature, etc. of each module A, B, C for the roadway, attribute data such as the vehicle length of the module D for the train, travel performance, operation plan, and the speed command condition of the train, Time to pass through each section can be calculated. The passing time at the ringing start point at the level crossing shown in FIG. 2 and the passing time at the ringing end point after the level crossing shown in FIG. 2 can be calculated from this section passing time, and the level crossing cutoff time can be calculated from both the passing times. Note that when the operating conditions such as express and normal are different, the ringing start point is set differently as shown in the figure, and the passing time is calculated. In addition, it is possible to generate a switchover direction command or a traffic light lighting command from the operation plan data such as the destination of the train module D, the stop station, the stop number of the station, the scheduled transit time, and waiting for other trains. .

  Based on each calculation data and generation data, the train module D is run in a simulated manner. In this case, for example, when the position of the train module D enters the front section (when the simulation target train enters the front section in a simulated manner), transmission of the module in charge of the section in which the train module D enters Data (simulated control information) changes. This change in transmission data is transmitted to the adjacent module, and the adjacent module processes its own transmission data based on the received data and transmits it to the next adjacent module. In this way, transmission / reception data of each module is updated one after another and transmitted to the entire module. Completion of the data update of the entire simulation apparatus due to the change of the transmission data is the time when the transmission data of each module stops changing.

  Such data update occurs every time the train module D moves through the section. Then, by updating the data, the above-described control conditions of each module (permission for lighting a traffic light, permission for switching a switch, permission for raising a circuit breaker, etc.) are determined. As a result, the train traveling state according to the operation plan set in the train module D is simulated.

  Moreover, the station arrival / departure time situation and the like can be simulated according to the control conditions (number of passengers, congestion situation, train waiting situation, etc.) set in the station module E.

  According to the operation simulating apparatus of this embodiment, simply by setting control conditions in the modules A, B, C, D, and E, it is easy to perform a simulation that comprehensively evaluates the operation related elements of the train. it can. Moreover, it is possible to simulate the train operation status of the operation line by simply setting the connection state of the module A for straight line, the module B for branching, and the module C for level crossing according to the travel route of the operation route to be simulated. Therefore, the simulation work can be easily organized.

  Also, a train module D is provided, and data is transmitted to and received from each of the modules A, B, and C for the travel route related to the operation plan of the train module D, and the train traveling state is simulated. By doing so, the data transmission / reception configuration can be simplified as compared with the case where the central processing unit is installed and simulated. When installing and simulating a central processing unit, it is necessary to connect the central processing unit and each of the modules A, B, and C for all travel routes to transmit and receive data, but a train module D is provided. In such a case, data may be transmitted / received only by the train module D and the module related to the travel of the train module D. Although a plurality of train modules can be set, the driving situation is simulated independently of each other according to the set operation plan.

If a crew member module F indicated by a broken line in FIG. 1 is provided and crew member operation information is set as attribute data, it is possible to perform a simulation in consideration of the crew member operation information.
In the above embodiment, the case of simulating the operation status of a train has been described. However, the mobile operation simulation device of the present invention is not limited to a train, and regularly operates buses and other predetermined travel routes. It goes without saying that any mobile body that can be applied to the simulation of the operation status.

Next, a mobile operation prediction system according to the present invention using the above-described mobile operation simulation device will be described.
FIG. 3 is a system configuration diagram showing an embodiment of a mobile operation prediction system according to the present invention. In addition, this embodiment demonstrates the example in the case of performing the operation prediction of a train as a mobile body.

In FIG. 3, the mobile operation prediction system of the present embodiment includes a center server 11 as a master and n sub-computers 12 _{1 to} 12 _n as slaves respectively connected to the center server 11. Composed.

The center server 11 has the function of the mobile operation simulator shown in FIG. In addition, a plurality of change data for changing a hardware processing circuit (FPGA: Field Programmable Gate Array) for changeable specific operation provided in each of the sub-computers 12 _{1 to} 12 _n is set in advance. Further, as the monitoring means for monitoring the actual operation status of the train, for example, the operation management device 13 that manages the operation of the train is connected, and the actual operation status data of the train managed by the operation management device 13 is input. Based on the above, different simulation conditions are assigned to each of the sub-computers 12 _{1 to} 12 _n in parallel, and the change data for changing to an arithmetic processing circuit suitable for the assigned simulation conditions is transmitted to each of the sub-computers 12. The prediction result of each operation status transmitted from _{1 to} 12 _{n is} transmitted to the operation management device 13.

Each of the sub-computers 12 _{1 to} 12 _n has the function of the mobile operation simulator shown in FIG. 1, and is a simulation in which a hardware processing circuit for specific calculation is assigned by changing data transmitted from the center server 11. The operation state of the train is simulated by changing to an arithmetic processing circuit suitable for the vehicle condition, the operation state is predicted based on the simulation result, and the prediction result is transmitted to the center server 11.

Next, operation | movement of the mobile body operation prediction system of this embodiment is demonstrated.
The center server 11 compares the actual train operation status input from the operation management device 13 with the operation schedule stored in advance. As a result of the comparison, it is determined that a trouble has occurred when the actual operation status deviates from the operation diagram by a predetermined value or more. In addition, the structure which the center server 11 judges that trouble has generate | occur | produced may be sufficient when the operation management apparatus 13 detects trouble occurrence and reports to the center server 11.

When recovering without changing the train schedule, the center server 11 detects the occurrence of the trouble and simulates the operation situation when the trouble continues for m × ΔT time (m = 1, 2,...). The simulation result is transmitted to each of the sub-computers 12 _{1 to} 12 _n . In this case, for example, the simulation result when the trouble continues for ΔT time (m = 1) is transmitted to the sub-computer 12 ₁ , and the simulation result when the trouble continues for 2ΔT time (m = 2) is transmitted to the sub-computer 12 _2. To send to. That is, the simulation statuses having different trouble durations are transmitted to the sub-computers 12 _{1 to} 12 _n , respectively. In addition, change data for changing the hardware processing circuit for specific calculation is transmitted.

Each of the sub-computers 12 _{1 to} 12 _n receiving the simulation status simulates the subsequent recovery status when the trouble is repaired in the transmitted status, for example, calculates the time until recovery to a normal diagram, It checks whether or not an unfavorable situation (a situation where the level crossing does not open, a situation where the turning operation cannot be performed) occurs, predicts the operation situation after the trouble is solved, and transmits the prediction result to the center server 11.

The center server 11 sequentially transmits the simulation status with another trouble duration to the sub-computer that has transmitted the prediction result. And if the prediction result of the operation condition regarding the simulation conditions allocated to each sub computer 12 _{1 to} 12 _n is received, the reception result is transmitted to the operation management device 13 and presented. In a command office where the operation management device 13 is installed, an optimal operation recovery plan may be automatically or manually selected based on the reception result.

When the train operation schedule is changed and restored, the center server 11 detects the occurrence of the trouble, simulates the operation situation when the trouble continues for k1 × ΔT time, and the proposed change along with the simulation result. (Suspended operation, loopback operation, etc.) is transmitted to each of the sub-computers 12 _{1 to} 12 _n . In this case, the first change plan is transmitted to the sub computer 12 ₁ and the second change plan is transmitted to the sub computer 12 ₂ . That is, a different change plan is transmitted to each of the sub computers 12 _{1 to} 12 _n .

Receiving the simulation status, each of the sub-computers 12 _{1 to} 12 _n simulates the subsequent recovery status when the proposed change is executed in the transmitted status. And, in the same way as when recovering without changing the train schedule described above, it is possible to calculate the time to recover to a normal schedule, or unfavorable situation (situation where the level crossing does not open, situation where turn-back operation is not possible) The operation status is predicted by checking whether or not the problem occurs, and the prediction result is transmitted to the center server 11.

The center server 11 simulates the operation situation when the trouble continues for k2 × ΔT (k2> k1) time when the trouble has been continued for a time duration of k1 × ΔT, and predicts the operation situation. The change proposal is sequentially transmitted to the sub-computer that has transmitted the prediction result together with the simulation result when the trouble continues for k2 × ΔT (k2> k1) time. And if the prediction result of the operation condition regarding the simulation conditions allocated to each sub computer 12 _{1 to} 12 _n is received, the reception result is transmitted to the operation management device 13 and presented.

Further, the center server 11 may cause the sub computers 12 _{1 to} 12 _n to perform processing for finding the optimal solution (best recovery plan) regarding the simulation state according to the trouble duration. As a method for this case, simulated annealing method (SA) method and the genetic algorithm (GA: Genetic Algorithm) has, center server 11, the sub-computer to 12 ₁ to 12 _n, the optimal solution hardware processing circuit The change data for changing to the arithmetic processing circuit may be transmitted.

Further, when there is no trouble and the train operation is normal, the center server 11 responds to the sub-computers 12 _{1 to} 12 _n , for example, an operation recovery plan assuming the occurrence of a trouble, and a planned temporary operation. Appropriate simulation processing such as an operation plan to be performed or an operation plan at the next diamond revision (periodic operation plan) is assigned.

According to the mobile operation prediction system of this embodiment, it is possible to perform operation prediction that comprehensively evaluates a plurality of operation-related elements related to the operation of a train, and a plurality of sub-computers 12 _{1 to} 12 _n . Since operation prediction under different simulation conditions is performed in parallel, it is possible to quickly and appropriately restore, for example, disruption of operation schedules due to trouble occurrence. Thereby, smooth operation management of a train can be performed.

In addition, when the train operation is normal, an appropriate simulation process is assigned to each of the sub-computers 12 _{1 to} 12 _n , so that a resource (sub-computer) is not wasted and a system with high operating efficiency can be provided.

  Needless to say, the moving body operation prediction system of the present invention can be applied not only to trains but also to operation state predictions of moving bodies that regularly operate buses and other predetermined traveling routes.

The block diagram of one Embodiment of the mobile body operation simulation apparatus which concerns on this invention Configuration diagram of the road to be simulated in the embodiment The block diagram of one Embodiment of the mobile body operation prediction system which concerns on this invention

Explanation of symbols

A module for straight line B module for branching C module for railroad crossing D module for train 6 communication path 11 center server 12 _{1 to} 12 _n sub-computer 13 operation management device

Claims (10)

  Dividing the traveling path of the mobile body into a plurality of sections, assigning a traveling path module prepared in advance according to the traveling path form of each section to each section, and the communication path between each traveling path module It is set to be the same as the section connection state of the traveling road, and is configured to simulate the traveling state of the moving body by transmitting and receiving control information of the moving body between the modules for each traveling road according to the traveling condition of the moving body set in advance. A mobile operation simulator that features   A mobile module having the travel condition of the mobile object as attribute data is provided, and the travel condition of the mobile object is set for the travel path module to simulate the travel condition of the mobile object. The moving body operation simulation apparatus according to claim 1.   The mobile operation simulation device according to claim 2, wherein unique data such as a vehicle length and travel performance of the mobile body is set as attribute data in the mobile body module.   The mobile operation simulation device according to claim 1, wherein unique data such as section length, gradient, curvature, etc. of an allocated section is set as attribute data in the travel path module.   The master is configured to assign different simulation conditions in parallel to a plurality of slaves having the function of the mobile operation simulator according to any one of claims 1 to 4, each of the slaves Is configured to simulate the traveling state of the moving body according to the simulation conditions assigned by the master using the function of the moving body operation simulating apparatus, and to predict the traveling state of the moving body. A mobile operation prediction system.   The slave includes a hardware processing circuit for specific operation that can be changed, the master includes a plurality of data for changing the hardware processing circuit in advance, and the master assigns the simulation condition to each slave. The mobile operation prediction according to claim 5, wherein the data for change for changing the hardware processing circuit of each slave to an arithmetic processing circuit suitable for the assigned simulation condition is set in each slave. system.   The said master is provided with the function of the moving body operation simulation apparatus as described in any one of Claims 1-4, and is based on the monitoring information of the monitoring means which monitors the actual operation state of a moving body, and the operation of a moving body When trouble occurrence is detected, it is configured to simulate the traveling status of the moving body by changing the trouble duration, and when the master solves the trouble under the simulated situation where the trouble duration is different for each slave The mobile operation prediction system according to claim 5 or 6, wherein the operation recovery status is simulated to present the operation recovery status of the mobile object in a predicted manner.   The operation recovery status simulation is performed both when the mobile operation plan is not changed and when it is changed, and when it is changed, the operation recovery status of the mobile device is predicted and presented based on the change condition set by the master. The moving body operation | movement prediction system of Claim 7 made into the structure to carry out.   When the actual operation status of the moving object is normal, each sleeve is a recovery plan for the moving object assuming trouble occurrence, an operation plan corresponding to a predetermined temporary operation of the moving object, or a periodic operation plan The moving body operation | movement prediction system as described in any one of Claims 5-8 made into the structure which performs arithmetic processing, such as.   The moving body operation prediction system according to any one of claims 5 to 9, wherein an opening time of a railroad crossing is included as an evaluation element of the operation state to be predicted.

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