JP2926465B2 - Level crossing motion analysis system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railroad crossing motion analysis system, and more particularly to a railroad crossing motion analysis system for simulating a railroad crossing and a situation in the vicinity thereof.

[0002]

2. Description of the Related Art Road conditions around a level crossing, such as the traffic volume of a vehicle crossing a level crossing, the time required for the vehicle to cross the level crossing, and the like, include the width and length of the level crossing. It is thought that it greatly depends on the structure of the railroad crossing and the operation status of the train. On the other hand, an accident that occurs at a railroad crossing, that is, a railroad crossing accident such as an accident that occurs in a car crossing a railroad crossing, largely depends on the structure of the railroad crossing, the operation state of the train, or the road conditions around the railroad crossing. It is thought to be caused by complicated intertwining.

Conventionally, the traffic volume of a vehicle crossing a specific level crossing can be obtained by examining the actual number of vehicles passing or the number of trains passing at this level crossing. It was obtained by analyzing these survey results.

On the other hand, based on macro data based on several factors such as the past annual traffic volume of a train passing through a specific railroad crossing and a car crossing this railroad crossing, and the number of past accidents caused by this railroad crossing, By performing statistical analysis, the cause of a level crossing accident that occurred at a specific level crossing was analyzed.

[0005] However, such conventional analysis of road conditions and analysis of level crossing accidents are based on generating a static model based on past macro data. However, there has been a problem that it is not possible to properly grasp the situation of the railway crossing, and therefore it is not possible to appropriately judge the road conditions around the railroad crossing and the cause and factor of the railroad crossing accident.

Further, since such an analysis has been made based on macro data related to an actual specific railroad crossing,
There was a problem that it was not possible to analyze road conditions related to a railroad crossing that did not exist or to analyze a railroad crossing accident.

[0007] It is an object of the present invention to provide a railroad crossing operation analysis system that generates a dynamic model indicating the conditions of a train and a road near a railroad crossing and displays an image based on the dynamic model.

Another object of the present invention is to provide a railroad crossing operation analysis system for analyzing data related to a generated dynamic model.

[0009]

SUMMARY OF THE INVENTION An object of the present invention is to provide railroad crossing information relating to a railroad crossing, train information relating to a train passing through a railroad crossing, road information relating to a road crossing a railroad crossing, and / or an automobile crossing a railroad crossing. Simulation structure defining means for setting vehicle information related to, and, based on data included in the information set by the simulation structure defining means, for each predetermined unit time, level crossing operation data indicating the operation state of the level crossing. Simulation execution means for sequentially generating train position data indicating the position of a train and / or vehicle position data indicating the position of a car; data generated by the simulation execution means; and simulation structure definition means. Corresponds to railroad crossings and images in the vicinity of them based on the data contained in the information That an image data generation means for generating image data is accomplished by crossing motion analysis system comprising a display means for displaying an image based on the image data.

[0010] In a preferred embodiment of the present invention, at least one of the train information and the car information includes:
It is configured to change as the predetermined unit time elapses.

In a further preferred aspect of the present invention, the simulation structure defining means is configured to set accident probability information related to a probability that a car crossing the railroad crossing will be in a dangerous state, and the simulation execution will be performed. The means is configured to generate, based on the accident probability information, accident data indicating that a dangerous state has occurred in the vehicle in a specific unit time.

[0012] In a further preferred aspect of the present invention, there is further provided a railroad crossing information storage means for storing a plurality of sets of railroad crossing information related to a specific railroad crossing, wherein the simulation structure defining means is provided from the railroad crossing information storage means. Is configured to select predetermined railroad crossing information.

[0013] In a further preferred aspect of the present invention, there is further provided train schedule storage means for storing a plurality of sets of train schedule information related to a specific train schedule, and wherein the simulation structure defining means includes the train structure defining means. A predetermined train schedule information is selected from the schedule storage means, and the train information is set based on the train schedule information.

[0014] In a further preferred aspect of the present invention, there is further provided a road traffic storage means for storing a plurality of sets of road traffic information relating to a specific road traffic, wherein the simulation structure defining means comprises: The apparatus is configured to select predetermined road traffic information from the road traffic storage means and set vehicle information based on the road traffic information.

In a further preferred aspect of the present invention, the image data generating means is configured to generate image data indicating that a dangerous state has occurred in the vehicle based on the accident data.

[0016] In a further preferred aspect of the present invention, the railroad crossing operation analysis system includes analysis means for statistically analyzing a railroad crossing state based on the data generated by the simulation execution means.

In a further preferred aspect of the present invention, the analysis means is configured to generate road condition information indicating a road condition around a railroad crossing.

In a further preferred embodiment of the present invention, the road condition information includes queue data corresponding to a queue associated with a vehicle waiting for a railroad crossing.

In a further preferred aspect of the present invention, the analysis means is configured to generate, based on the queue data, waiting time data indicating a time required for the vehicle to pass a railroad crossing. In a further preferred aspect of the present invention, the analysis means is configured to generate train passage information indicating a train passage situation and / or railroad crossing cutoff information indicating a railroad crossing cutoff state. In a further preferred aspect of the present invention, the analysis means includes a timing chart showing a crossing for each unit time and a state around the crossing based on the road condition information, the train passage information and / or the level crossing cutoff information. It is configured to generate corresponding timing chart data. In a further preferred aspect of the present invention, the railroad crossing operation analysis system statistically processes the accident data generated by the simulation executing means and generates statistical accident data related to a dangerous state generated during the simulation. Equipped with accident statistics processing means. In a further preferred embodiment of the present invention, the simulation execution means, based on the accident data, the railroad crossing operation data and the train position data,
It is configured to generate accident risk data indicating the risk of the dangerous state.

[0020]

According to the present invention, the simulation is executed by the simulation executing means on the basis of the railroad crossing information set by the simulation structure defining means and the train information, road information and / or car information, and the simulation is sequentially generated by the simulation executing means. Since the image based on the data is displayed on the display means, the operator can observe the state of the railroad crossing and its surroundings.

According to a preferred embodiment of the present invention, since at least one of the train information and the car information changes with the elapse of a predetermined unit time, it is possible to observe the state of the railroad crossing and its surroundings in more detail. It becomes possible.

According to a further preferred embodiment of the present invention, the simulation is executed based on the accident probability information set by the simulation structure defining means, so that the operator also observes an accident occurring in a certain unit time. It becomes possible.

According to a further preferred embodiment of the present invention, the railroad crossing information, the train schedule information, and / or the road crossing information selected from the railroad crossing information storage unit, the train schedule information storage unit, and / or the road traffic volume storage unit. Since the simulation is performed based on the traffic information, the operator can observe the state of the actual level crossing, road, and the like.

According to a further preferred embodiment of the present invention, the analyzing means statistically analyzes the level crossing on the basis of the data generated by the simulation executing means. It is possible to obtain statistical information related to a simulation based on a structure such as a railroad crossing or a train according to the information.

According to a further preferred embodiment of the present invention, the analyzing means generates timing chart data based on road condition information and the like, so that the operator can easily grasp statistical information related to the simulation. can do.

According to a further preferred embodiment of the present invention, the accident statistical processing means generates the statistical accident data, so that the operator has the structure of the level crossing according to the crossing information set by the user, the level crossing according to the train information, and the like. It is possible to easily know what kind of dangerous state has occurred during the simulation based on.

[0027]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the configuration of a railroad crossing operation analysis system according to an embodiment of the present invention. As shown in FIG.
Is a structure definition / parameter setting unit that sets various parameters for defining the structure of the level crossing such as the length and width of the level crossing, the configuration of the train passing through the level crossing, and the structure of the road crossing the level crossing as described later. 12 and the parameters set by the structure definition / parameter setting unit 12 are stored,
Alternatively, a database section 14 in which a crossing state to be used by the structure definition / parameter setting section 12 is stored in advance,
A simulation section 16 for simulating a railroad crossing and its surroundings based on parameters set by the structure definition / parameter setting section 12;
6, an analysis processing unit 18 for evaluating the state of the road crossing the railroad crossing, the accident rate of the railroad crossing, etc., based on the simulation result generated by the simulation unit 6, and the road crossing the railroad crossing generated by the simulation result and the analysis processing unit 18. And a display unit 22 for displaying simulation results.

As shown in FIG. 1, the structure definition / parameter setting unit 12 includes an operation setting unit 30, a railroad crossing ledger selection unit 32,
The database unit 14 includes a train schedule setting unit 34 and a road traffic volume setting unit 36, while the database unit 14 includes an operation parameter file 40, a railroad crossing database 42, a train schedule database 44, and a road traffic volume database 46.

The operation setting unit 30 includes the simulation unit 1
In step 6, predetermined parameters are set so that simulation can be performed. More specifically, the operation setting unit 30 performs simulation time information, railroad crossing information,
The train information, road / vehicle information, and accident probability information can be set.

The simulation time information includes start time data indicating a time at which the simulation is started, simulation time data indicating a period during which the simulation is executed, and whether or not a random number for generating a natural traffic flow is variable. It includes random number data and stop data indicating whether to stop the simulation when an accident occurs in the simulation during the execution of the simulation.

The random number data is generated according to a probability distribution of an amount obtained by dividing a road traffic volume corresponding to road traffic volume data described later by time. By fixing this random number, it is possible to reproduce the simulation in order to generate the exact same random number sequence,
On the other hand, by making it variable, it is possible to generate a different random number sequence for each simulation.

Also, the level crossing information includes the level crossing length data indicating the length of the level crossing, the shape of the level crossing barrier, for example, in this embodiment, whether the level crossing blocking system is one set or two sets. , An opening / closing time data indicating the opening / closing time of the circuit breaker, an alarm point data indicating how close the train should approach before starting the operation of the alarm at the level crossing, and the like.

The railway / train information includes, for each type of train, train speed data indicating the maximum speed of the train, acceleration data indicating acceleration, deceleration data indicating deceleration, train length data indicating train length, Further, it has train interval data indicating train operation intervals.

The railroad / train information includes position data indicating the position of the station and distance data indicating the distance from the station to the railroad crossing in order to calculate the speed of the train passing the railroad crossing.

Further, the road / vehicle information includes first vehicle speed data indicating a vehicle speed before the railroad crossing, a vehicle speed inside the railroad crossing, and a vehicle speed after passing the railroad crossing, respectively.
The second vehicle speed data and the third vehicle speed data, the vehicle acceleration / deceleration data indicating the vehicle acceleration / deceleration, the traffic volume data indicating the amount of vehicles passing through the road, the level crossing indicating the distance between the level crossing and the intersection on the road It includes inter-distance data, intersection signal control data indicating the timing of change of a signal provided at an intersection on a road, and level-crossing signal setting data indicating whether a level crossing is to be a traffic signal. The traffic signal at the level crossing is set at the level crossing with the same traffic light as the signal at the intersection, and when the train is not approaching, a green signal is emitted and the car is passed without stopping, thereby reducing traffic congestion. It is to prevent.

In particular, the traffic signal at the railroad crossing is controlled not only to prevent traffic congestion but also to prevent traffic flow as smoothly as possible by controlling in conjunction with an adjacent traffic signal. Therefore, it also contributes to improving safety. In the present embodiment, a value indicating that the level crossing is to be a traffic signal is given to the level crossing signal setting data, and the intersection signal control data is set to have a predetermined relationship with the traffic signal provided at the level crossing. Accordingly, it is possible to execute a simulation in a case where a railroad crossing is turned into a traffic signal, thereby confirming the prevention of traffic congestion and the improvement in safety described above. For example,
The intersection signal control data corresponding to the signal provided at the intersection is set to be a red light slightly before the railroad crossing becomes a red light, so as to suppress the traffic to the railroad crossing when the railroad crossing is interrupted. , And a simulation based on this can be executed.

The road / vehicle information also includes data related to the intersection definition information defining the intersection on the road.

The accident probability information includes stop ignoring probability data indicating the probability that the vehicle will ignore the temporary stop, alarm ignoring probability data indicating the probability that the vehicle will ignore the operation of the alarm, and the probability that the vehicle will break down at the railroad crossing. Failure probability data as shown in FIG.

Various data included in the simulation time information, railroad crossing information, railway / train information, road / automator information, and accident probability information set by the operation setting unit 30 are stored in predetermined regions of the operation parameter file 40. To
Each is stored.

The railroad crossing ledger selection unit 32 is connected to the railroad crossing database 42 and, according to a command input using an input device (not shown), selects a specific railroad crossing stored in the railroad crossing database 42 in advance. It is configured to select relevant railroad crossing information. The railroad crossing database 42 stores, for example, railroad crossing length data, shutoff method data, shutoff opening / closing time data, alarm point data, and the like of actual crossings provided in Japan.

The train schedule setting unit 34 is connected to the train schedule database 44, and is stored in advance in the train schedule database 44 in accordance with a command input using an input device (not shown). The system is configured to read data related to the train schedule and dynamically set train interval data of a specific type of train based on the data.

The road traffic volume setting unit 36 is connected to the road traffic volume database 46, and stores a specific traffic information stored in advance in the road traffic volume database 46 in accordance with a command input using an input device (not shown). It is configured to read data related to the hourly traffic volume of the road and to dynamically set traffic volume data based on the data.

When the operator inputs a predetermined command using an input device (not shown) and the train schedule setting unit 34 and / or the road traffic volume setting unit 36 is activated, the train schedule database 46 is stored in the train schedule database 46. Based on the data related to the predetermined train schedule stored in advance and / or the data related to the hourly traffic volume of the predetermined road stored in the road traffic database 46 in advance, the train diagram setting unit 34 and the The train interval data and / or traffic data may be dynamically generated by the / road traffic setting unit 36.

FIGS. 2 and 3 show images appearing on the screen of the display unit 22 when the operator activates the operation setting unit 30 using an input device (not shown).
As shown in FIG. 2, the first image 100 is provided with a simulation control display unit 102, a road / vehicle display unit 104, and an accident probability display unit 106.
As shown in the figure, the second image 110 is provided with a railway / train display unit 112 and a railroad crossing display unit 114.

By appropriately operating the operation setting section 30 using an input device (not shown), the operator can set the numerical values in the display sections 102 to 106, 112, and 114, respectively. .

The numerical values in the portion 120 of the simulation control display section 102 shown in FIG. 2 correspond to the start time data. Similarly, the numbers in portions 122, 124 and 126 correspond to simulated time data, random number data and stop data, respectively. Also, portions 128, 130, 132, 134 of the road / vehicle display unit 104,
The numerical values in 136, 137, 138 and 139 are the first vehicle speed data, the second vehicle speed data, the third vehicle speed data, the vehicle acceleration / deceleration data, respectively.
It corresponds to traffic volume data, crossing intersection distance data, intersection signal control data, and level crossing signal setting data. Similarly, the parts 142, 144, and 14 of the accident probability display unit 106
Numerical values in 6 and 147 represent stop neglect probability data, alarm neglect probability data, failure probability data, and
This corresponds to emergency button probability data indicating the probability of pressing an emergency button provided in a railroad crossing when a failure or the like occurs.

At the top of the railway train display section 112 shown in FIG. 3, the types of trains are shown in the horizontal direction. In this embodiment, the part 150-1 is an express train, the part 150
-2 is an express train, part 150-3 is a regular train, part 15
0-4 is related to a high-speed train, and part 150-5 is related to a train stopped at each station. For example, a part 152 in a part 150-1 is related.
1, 154-1, 156-1, 158-1 and 160
Numerical values in -1 correspond to train speed data, acceleration data, deceleration data, train length data, and train interval data, respectively, related to the limited express train. Also, part 16
Numerical values in 2 and 164 correspond to position data and distance data, respectively.

Further, a portion 166 of the railroad crossing display section 114,
Numerical values in 168, 170, and 182 correspond to railroad crossing length data, shutoff method data, shutoff time data, and alarm point data, respectively.

Various data, the values of which are set by the operator operating the operation setting unit 30 using an input device (not shown), are stored in the operation parameter file 40 and the simulation unit 16 is operated. Given to.

The simulation unit 16 calculates the operation state of the railroad crossing, the position of the train and the position of the car, the operation state of the traffic light, and the like for each unit time based on the data provided from the structure definition / parameter setting unit 12. , An operation calculating unit 50 for sequentially generating data related thereto, and a display unit 2 based on the data generated by the operation calculating unit 50.
2 for generating a simulation image displayed on the screen and sequentially updating the simulation image, and an enlarged image display control for generating an enlarged image obtained by enlarging a predetermined position in the simulation image. Part 54
And an accident simulation for generating an unstable state such as ignoring a warning of a car during a simulation based on data included in the accident probability information set by the operation setting unit 30 and data generated by the operation calculation unit 50. And a portion 56.

When data is given from the structure definition / parameter setting unit 12, the operation calculating unit 50 shows train position data indicating the position of the train and the operating state of the railroad crossing based on the start time data in the data. Initial values such as railroad crossing operation data, vehicle position data indicating the position of the vehicle, and signal operation data indicating the operation state of the traffic signal are calculated, and this data is provided to the screen display update unit 52. In addition, the motion calculation unit 5
When a command to start a simulation is given from an input device (not shown), the unit time is incremented by one and the unit time is given by the structure definition / parameter setting unit 12 every time the unit time is incremented. Based on the obtained data, values such as railroad crossing operation data, train position data, vehicle position data, and traffic light operation data are newly calculated, and data including the newly calculated values is provided to the screen display update unit 52.

For example, position data of each train is generated based on various data included in the railway / train information, and the generated position data of the train, the distance data included in the railway / train information, and the railroad crossing information are included. Level crossing operation data is generated based on the included warning point data.

As described above, as railroad crossing operation data, train position data, vehicle position data, traffic light operation data, and the like are generated for each unit time, these data are sequentially stored in a predetermined area of the simulation result database 20. It is memorized.

The screen display updating unit 52 includes various data provided from the structure definition / parameter setting unit 12, and
Based on the initial level crossing operation data, train position data, vehicle position data, traffic signal operation data, and the like provided by the operation calculation unit 50, an image corresponding to a level crossing to be displayed on the screen of the display unit 22 and an image around the level crossing. Generate data. Further, the screen display update unit 52 outputs the railroad crossing operation data, train position data,
Vehicle position data, traffic light operation data, etc. are given,
Alternatively, as accident data to be described later is given at a specific unit time, the image data corresponding to the image of the railroad crossing and its surroundings is updated based on these data.

The enlarged screen display control section 54 receives various data provided from the structure definition / parameter setting section 12 based on a command from an input device (not shown), such as level crossing length data and level crossing intersection distance data. According to
Among the images of the railroad crossing and its surroundings provided by the image display updating unit 52, in particular, enlarged image data corresponding to an image in which the vicinity of the railroad crossing is represented as being closer to the actual size is generated.

The accident simulation unit 56 includes various data included in the accident probability information and the operation calculation unit 50.
Based on the railroad crossing operation data, train position data, vehicle position data, traffic light operation data, etc. generated for each unit time, the suspension of vehicles crossing the railroad crossing is ignored,
A specific unit time during which a warning is ignored, or a fall, a stall or a marginal obstacle during a railroad crossing is determined, and an accident or a dangerous state that may lead to an accident or even an accident does not occur.
The accident data including the type of the accident or the dangerous state and the information for specifying the vehicle that caused the accident or the dangerous state is stored in a predetermined area of the simulation result database 20, and is stored in a screen display update unit. 5
2 and the operation calculation unit 50. Here, the marginal obstacle indicates a state in which a part of the vehicle remains in the railroad crossing, for example, a state in which the stop position of the vehicle is defective.

Further, the accident simulation section 56 indicates the degree of danger of the state by referring to the train position data and the railroad crossing operation data per unit time in which the state has occurred in relation to the dangerous state in which an accident is likely to occur. Accident risk data is calculated, the data is stored in a predetermined area of the simulation result database 20, and is provided to the screen display updating unit 52 and the operation calculating unit 50. In the present embodiment, this accident risk data is obtained from a value indicating a relatively minor dangerous state in which a car is present in the railroad crossing after the alarm of the railroad crossing is activated, when the vehicle is present in the railroad crossing. It has six values, up to the value that indicates the most dangerous state that the train is approaching.

Further, the analysis processing unit 18 statistically processes railroad crossing operation data, train position data, vehicle position data, and the like for each unit time stored in a predetermined area of the simulation result database 20 to obtain a level crossing of the vehicle. It is configured to generate data related to a railroad crossing passing rate indicating a passing property, a degree of congestion indicating a rate of traffic congestion near a level crossing, and the like. In addition, the analysis processing unit 18 is configured to statistically process the accident data stored in a predetermined area of the simulation result database 20 to generate data related to a level crossing risk or the like.

The operation of the railroad crossing motion analyzing system thus configured will be described below. First, when the operator inputs a predetermined command using an input device (not shown) and starts the railroad crossing operation analysis system 10, the operation setting unit 30 of the structure definition / parameter setting unit 12 operates. . When the operation setting unit 30 is activated, the images shown in FIGS. 2 and 3 are displayed on the screen of the display unit 22. The operator operates the display unit 22
By inputting numerical values in the display units 102 to 106, 112, and 114, desired parameters can be set. In addition, the operator operates an input device (not shown).
When a predetermined command is input using the command, the railroad crossing ledger selection unit 32 operates, and data relating to a specific railroad crossing based on the input command is read from the railroad crossing database 42,
These data are provided to the operation setting unit 30. The operation setting unit 30 sets data included in the railroad crossing information, for example, railroad crossing length data, block system data, block opening / closing time data, and alarm point data based on the provided data.

Alternatively, the operator operates an input device (not shown).
When another predetermined command is input using the command and the railroad crossing operation analysis system 10 is started, the operation setting unit 30, the train schedule setting unit 34, and the road traffic volume setting unit 36 operate. In this case, the operator selects a specific train diagram and a specific road with reference to the image displayed on the screen of the display unit 22. The train schedule selection unit 34 and the road traffic volume setting unit 36 read out relevant data from the train schedule database 44 and the road traffic database 46, respectively, based on the selected specific train schedule and specific road, and Based on the calculated values, initial values such as train interval data and traffic volume data are calculated.

The various data set as described above are given to the simulation unit 16. When the operator uses an input device (not shown) to give a command indicating the start of the simulation, the simulation unit 16 operates. As described above, the operation calculation unit 50 of the simulation unit 16 converts the train data, the railroad crossing operation data, the car position data, the traffic light operation data, and the like into units based on the predetermined data given from the structure definition / parameter setting unit 12. It is generated every time the time is incremented, and given to the screen display update unit 52.

FIG. 4 is a diagram showing an image displayed on the screen of the display unit 22 in accordance with the image data generated by the image updating unit 52. As shown in FIG.
Above, the train figure 20 obtained based on the train position data is shown.
2-1, 202-2, a railroad crossing figure 204 whose operation is defined based on railroad crossing operation data, vehicle figures 206-1, 206-2 obtained based on vehicle position data,.
, 206-n,..., And a traffic light graphic 208 whose operation is defined based on the traffic light operation data. As the unit time is incremented, these figures are the newly generated train location data,
The vehicle moves or changes its operation in accordance with the railroad crossing operation data, the vehicle position data, and the intersection operation data.

In this way, the operator can observe the dynamically generated railroad crossing and the surrounding images per unit time according to the information set by the operator.

Next, as described above, the train schedule setting unit 34 and the road traffic volume setting unit 36 operate to set train interval data and traffic volume data according to a specific train schedule and a specific road. If there is, add an explanation.

The values of the data relating to the train schedule and the data relating to the hourly traffic amount stored in the train schedule database 46 and the road traffic database 46 are uniquely determined irrespective of time. It does not change, but changes according to changes in unit time. Therefore, in this case, every time the unit time is incremented, the fact is transmitted from the operation calculation unit 50 to the train schedule setting unit 34 and the road traffic volume setting unit 36, and the train schedule setting unit 34 and the road traffic Quantity setting part 3
6, train interval data and traffic volume data are newly generated, and these data are
0 is given.

The operation calculation unit 50 includes a train schedule setting unit 34
When newly generated data is given from the road traffic volume setting unit 36, train position data, railroad crossing operation data, vehicle position data, traffic light operation data, and the like are generated based on these data, and these are updated on the screen display. Part 5
2, and stored in a predetermined area of the simulation result database 20. This makes it possible to simulate certain existing railroad crossings and / or roads.

When the operator uses an input device (not shown) to give an instruction for enlarging the image of the crossing that has been focused on the screen of the display unit 22 and the image around the crossing, the enlargement is performed. The screen display control unit 54 operates, and the image data generated by the screen display update unit 52, the level crossing operation data generated by the operation calculation unit 50, the vehicle position data, and the like, and the structure definition / parameter setting unit 12 provide the data. Based on the railroad crossing length data and the railroad crossing intersection distance data, enlarged image data corresponding to an image in which the vicinity of the railroad crossing is represented as being closer to the actual size is generated, and the expanded image data is provided to the display unit 22. This allows the operator to observe the situation near the railroad crossing in more detail.

During the execution of the simulation, the accident simulation unit 56 determines a specific unit time based on various data included in the accident probability information, the level crossing operation data calculated by the operation calculation unit 50, the vehicle position data, and the like. However, if it is determined that there is a vehicle that has ignored a stop or a warning, or has fallen in a railroad crossing, the unit time at which the accident or dangerous state occurred, the type of accident or dangerous state, and the accident Or accident data containing information identifying the car that caused the hazard
The accident data is stored in a predetermined area of the simulation result database 20 and the accident data is given to the screen display updating unit 52 and the operation calculating unit 50. In addition, the accident simulation unit 56, when the accident data is generated,
With reference to the train position data and the railroad crossing operation data per unit time related to the accident data, accident risk data indicating the risk of the state is calculated, and this data is stored in a predetermined area of the simulation result database 20. , The display update unit 52 and the operation calculation unit 50
Give to.

When the accident data is given from the accident simulation unit 56, the image display updating unit 52 displays an image corresponding to an image of a railroad crossing and its surroundings so that the car in which the accident occurred is identified as another car. Generate data. In addition, when the accident data is given by the accident simulation unit 52, the operation calculation unit 50 uses the stop data included in the simulation time information to indicate that the simulation should be stopped when an accident occurs. , The increment of the unit time is interrupted. As a result, the simulation is interrupted, and the operator can observe the railroad crossing in the event of an accident and the surrounding images in more detail.

When the operator gives a command to stop the simulation using an input device (not shown), or the simulation is executed for a time based on the simulation time data included in the simulation control information. In this case, the operation calculation unit 50 ends the simulation, and gives data indicating that to the display unit 22.

In this way, the simulation is performed only from the time corresponding to the start time data until the command to stop the simulation is given or the time based on the simulation time data included in the simulation control information. Is executed, and the railroad crossing operation data, train position data, vehicle position data, traffic light operation data, etc. per unit time are stored in the simulation result database 2.
0 is stored in a predetermined area. Also, the unit time at which the accident or dangerous state occurred, the type of accident or dangerous state,
In addition, accident data including information for specifying an automobile causing an accident or a dangerous state, and accident risk data are also stored in a predetermined area of the simulation result database 20. When the operator gives a command to obtain a simulation result using an input device (not shown) after the end of the simulation, the analysis processing unit 18 operates.

The analysis processing unit 18 reads data from a predetermined area of the simulation result database 20,
From these data, analysis result information indicating the analysis result of the simulation is generated. In this analysis result information, the crossing arrival number data indicating the number of vehicles arriving at the railroad crossing during the simulation, the railroad crossing number data indicating the number of vehicles crossing the railroad crossing during the simulation, every unit time, before and after the crossing Queue data indicating the queue associated with the car waiting for the crossing that occurred, train passage data indicating the number of trains that crossed the railroad crossing during the simulation, and the time when the crossing barrier was opened and closed during the simulation. The data includes breaker opening / closing data, and breaking time data indicating the total time when a level crossing was blocked by the breaker.

Further, the analysis processing unit 18 generates waiting time data indicating the time required for the vehicle to pass a railroad crossing in a certain unit time based on the generated queue data and the like. The data generated by the analysis processing unit 18 is provided to the display unit 22.

Further, the analysis processing unit 18 statistically processes the accident data and the accident risk data stored in a predetermined area of the simulation result database 20 based on the accident data and the accident risk data. Statistical accident data including data indicating the number of times is generated, and the generated statistical accident data is provided to the display unit 22.

As shown in FIG. 5, the screen 30 of the display unit 22
On 0, values corresponding to various data generated by the analysis processing unit 18 are displayed. For example, a simulation elapsed time indicating the number of unit times in which the simulation has been performed is displayed in the portion 304. The simulation elapsed time corresponds to the simulation time data when the simulation has been executed to the end, while the simulation elapsed time corresponds to the start time data when the instruction to stop the simulation is given by the operator. This is the number of unit times from the time of execution to the time until the command is given. Similarly, in the portion 306 on the screen 300, the number of arrivals at the level crossing corresponding to the level crossing arrival number data, in the portion 308, the number of level crossings corresponding to the level crossing number data, and in the portion 310, the queue data In the part 312, the number of trains corresponding to the train passage data, and in the part 314, the number of open / close times of the circuit breaker corresponding to the data of the circuit breaker, , Each of the breaker shutoff times corresponding to the shutoff time data is displayed. Also, a portion 318 on the screen 300 includes the maximum value of the queue data per unit time,
The minimum and average values are displayed. Furthermore, screen 300
In the upper part 320, the maximum value, the minimum value, and the average value of the waiting time data for each unit time are displayed.

Also, the part 3 on the screen 300 of the display unit 22
22 displays various values corresponding to the statistical accident data. Here, 322a indicates the number of times an accident or a dangerous state has occurred for each type of accident or dangerous state,
On the other hand, 322b indicates the number of times a dangerous state has occurred for each degree of risk.

Further, the analysis processing unit 18 generates a unit based on the generated train passage data, circuit breaker opening / closing data, circuit break time data, railroad crossing arrival number data, railroad crossing number data, queue data, and queue time data. Timing chart data corresponding to a level crossing timing chart indicating a state before and after a level crossing at each time is generated. When the operator gives a command to display a timing chart using an input device (not shown), the analysis processing unit 18
This timing chart data is provided to the display unit 22.

FIG. 6 is generated by the analysis processing unit 18,
FIG. 4 is a diagram illustrating an example of an image corresponding to timing chart data given to a display unit 22 according to an instruction of an operator.
As shown in FIG. 6, the timing chart includes train passing states 402-1 and 402-2 for each unit time.
... Interruption state of breaker 404-1, 404-2 ...
The number of vehicles 406 arriving at the railroad crossing, the number of vehicles 408 passing the railroad crossing, the number of queues of the vehicle 410, and the waiting time of the vehicles 412-1, 412-2,.
·············· are shown so that the operator can understand more. For example, in the example shown in FIG. 6, it can be easily understood that the queue of the vehicle increases as time passes, and therefore, the waiting time of the vehicle also gradually increases.

By changing parameters to be set in the structure definition / parameter setting unit 12 and executing a simulation by the simulation unit 16, another timing chart can be obtained. FIG. 7 is a diagram illustrating another example of an image corresponding to the timing chart generated by the analysis processing unit 18. As shown in FIG. 7, train passing states 502-1, 502-2,..., Railroad crossing cutoff states 504-1, 504-2,. By being changed,
6, the number of vehicles 508 passing through a railroad crossing, the number of queues 510 for vehicles, and the waiting time 5 for vehicles
12-1, 512-2, ..., 512-n, ...
Can be understood from the simulation. Therefore, by setting the parameters appropriately by the structure definition / parameter setting unit 12, it becomes possible to obtain the optimum crossing conditions.

According to this embodiment, simulation time information, railroad crossing information, railway / train information, road / vehicle information, and accident probability information are set by the operation setting unit 30 of the structure definition / parameter setting unit 12. The operation calculation unit 50 of the simulation unit 16 sequentially generates train position data, railroad crossing operation data, car position data, and traffic signal operation data for each unit time based on the data included in the information, and displays an image based on these. It is displayed on the screen of the unit 22. Therefore, the operator can observe the dynamic state of the railroad crossing and the vicinity thereof.

Further, according to the present embodiment, the railroad crossing register selection unit 32 selects various data related to a specific existing railroad crossing, and the operation setting unit generates railroad crossing information based on the selected data. Therefore, the operator can observe the existing railroad crossing and the dynamic state in the vicinity thereof.

Further, according to the present embodiment, the train schedule setting unit 34 and the road traffic setting unit 36 use the data relating to the traffic volume of a specific existing train diagram and the specific existing road at each specific time. Are read out, and based on these data, specific types of train interval data, etc., and traffic data are dynamically set, so simulations of railroad crossings and their vicinity are executed more precisely. It is possible to do.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the invention described in the claims, which are also included in the scope of the present invention. Needless to say, it is.

For example, structure definition / parameter setting unit 1
2 is railroad crossing information to define the structure of the intersection, etc.
The train / train information, the road / vehicle information, and the accident probability information are configured to be respectively set. However, the present invention is not limited to this. May be configured to be set.

The information that can be set in the structure definition / parameter setting unit 12 of the embodiment is not limited to the information described in the embodiment. For example, the road / vehicle information may include, in addition to road traffic volume data, large vehicle ratio data indicating the ratio of large vehicles among vehicles passing through the road. In addition, when the ratio of large vehicles is included in the road / vehicle information, data indicating whether or not large vehicles can cross a railroad, for example, data indicating whether large vehicles can pass each other, and printing between large vehicles and small vehicles. Obviously, the data may include data indicating the possibility of the difference.

Further, it is apparent that the data included in each information is not limited to the data described in the above embodiment.

In the above embodiment, the analysis processing unit 1
8 generates waiting time data indicating the time required for the car to pass through a railroad crossing, and the display unit 22 is configured to display a graph based on the data. For example, the analysis processing unit 18 First waiting time data indicating an average waiting time of a vehicle passing through a railroad crossing from the start of the simulation to a predetermined time, and an average waiting time required for vehicles existing in the queue at the predetermined time to pass the railroad crossing. It is obvious that the second waiting time data shown may be generated, and the display unit 22 may be configured to display a graph based on the data.

Further, in this specification, means does not necessarily mean physical means, but also includes a case where the function of each means is realized by software. Further, the function of one unit may be realized by two or more physical units, or the function of two or more units may be realized by one physical unit.

[0090]

According to the present invention, it is possible to provide a railroad crossing operation analysis system that generates a dynamic model indicating a train and road conditions near a railroad crossing and displays an image based on the dynamic model.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a railroad crossing operation analysis system according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an image appearing on a screen of a display unit when an operator activates an operation setting unit using an input device.

FIG. 3 is a diagram illustrating an image appearing on a screen of a display unit when an operator activates an operation setting unit using the input device.

FIG. 4 is a diagram illustrating an image displayed on a screen of a display unit according to image data generated by an image update unit.

FIG. 5 is a diagram illustrating a simulation result displayed on a screen of a display unit.

FIG. 6 is a diagram illustrating an example of an image corresponding to timing chart data generated by an analysis processing unit and given to a display unit 22 according to an instruction of an operator.

FIG. 7 is a diagram illustrating another example of an image corresponding to the timing chart generated by the analysis processing unit;

[Explanation of symbols]

 Reference Signs List 10 railroad crossing motion analysis system 12 structure definition / parameter setting part 14 database part 16 simulation part 18 analysis processing part 20 simulation result database 22 display part 30 operation setting part 32 railroad crossing ledger selection part 34 train schedule setting part 36 road traffic volume setting part 40 Operation parameter file 42 Railroad crossing database 44 Train schedule database 46 Road traffic volume database 50 Operation calculation unit 52 Screen display update unit 54 Enlarged screen display control unit 56 Accident simulation unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) B61L 27/00-29/32 G08G 1/00-1/16

Claims (15)

(57) [Claims] 1. Setting information of a railroad crossing related to a railroad crossing, train information related to a train passing the railroad crossing, road information related to a road crossing the railroad crossing, and / or vehicle information related to a car crossing the railroad crossing. Simulation structure defining means for performing, based on data included in the information set by the simulation structure defining means, for each predetermined unit time, railroad crossing operation data indicating a railroad crossing operation state, and a train position indicating a train position Simulation execution means for sequentially generating data and / or vehicle position data indicating the position of the vehicle; data generated by the simulation execution means; and data included in the information set by simulation structure definition means. Generate image data corresponding to the railroad crossing and the image in the vicinity thereof Crossing motion analysis system characterized by comprising a display means for displaying the image data generation means, an image based on the image data. 2. The system according to claim 1, wherein at least one of the train information and the car information changes as the predetermined unit time elapses.
A railroad crossing motion analysis system according to item 1. 3. The simulation structure defining means,
The simulation execution means is configured to set accident probability information related to the probability that a car crossing the railroad crossing will be in a dangerous state. The railroad crossing operation analysis system according to claim 1 or 2, wherein the system is configured to generate accident data indicating that the accident has occurred. 4. A railroad crossing information storage unit for storing a plurality of sets of railroad crossing information related to a specific railroad crossing, wherein the simulation structure defining unit selects predetermined railroad crossing information from the railroad crossing information storage unit. The railroad crossing motion analysis system according to any one of claims 1 to 3, wherein the railroad crossing motion analysis system is configured as described above. 5. A train schedule storage unit for storing a plurality of sets of train schedule information related to a specific train schedule, wherein the simulation structure defining unit stores a predetermined train schedule from the train schedule storage unit. The train information is selected, and the train information is set based on the train schedule information.
The railroad crossing operation analysis system according to any one of the above. 6. A road traffic volume storage unit for storing a plurality of sets of road traffic volume information relating to a specific road traffic volume, wherein the simulation structure defining unit is configured to store a predetermined amount of road traffic volume information from the road traffic volume storage unit. The road traffic information is selected, and vehicle information is set based on the road traffic information.
The railroad crossing operation analysis system according to any one of the above. 7. The railroad crossing operation analysis system according to claim 3, wherein the image data generating means generates image data indicating that a dangerous state has occurred in the vehicle based on the accident data. 8. The railroad crossing operation analysis system according to claim 1, further comprising an analysis unit that statistically analyzes a railroad crossing state based on the data generated by the simulation execution unit. 9. The method according to claim 8, wherein the analyzing unit generates road condition information indicating a road condition around the railroad crossing.
A railroad crossing motion analysis system according to item 1. 10. The railroad crossing operation analysis system according to claim 9, wherein the road state information includes queue data corresponding to a queue associated with a car waiting for a railroad crossing. 11. The apparatus according to claim 10, wherein the analysis means is configured to generate, based on the queue data, waiting time data indicating a time required for the vehicle to pass a railroad crossing. Railroad crossing motion analysis system. 12. The method according to claim 8, wherein said analyzing means generates train passage information indicating a train passing condition and / or railroad crossing cutoff information indicating a railroad crossing cutoff status. The railroad crossing motion analysis system described. 13. A timing chart data corresponding to a timing chart showing a state of a railroad crossing per unit time and its surroundings based on the road condition information and the train passage information and / or railroad crossing cutoff information. 13. The railroad crossing operation analysis system according to claim 12, wherein: 14. An accident statistical processing means for statistically processing accident data generated by said simulation executing means and generating statistical accident data related to a dangerous state generated during the simulation. A railroad crossing operation analysis system according to any one of claims 8 to 13, characterized in that: 15. The simulation execution means is configured to generate accident risk data indicating the risk of the dangerous state based on the accident data, the level crossing operation data, and the train position data. The railroad crossing motion analysis system according to claim 3, wherein: