JP2016088414A - Train position output device, train position output method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that getting on a wrong train and congestion in a station premise are chronically occurring since information on operations of trains and on facilities provided to users at a station is not sufficient.SOLUTION: A train position output device includes a map information storage part 101 for storing map information, an operation information storage part 102 for storing train operation information, a train information storage part 103 for storing train information having rail track identifiers of rail tracks on which trains travel, a reception part 104 for receiving output designation having information on a place and a time, a train determination part 105 for determining a train corresponding to the time and the place designated and output using the operation information, a travel rail track determination part 106 for determining a rail track on which the train determined by the train determination part 105 using the train information travels, and an output part 107 for outputting a train on a map in a mode that the train travels on the rail track on the map using the map information. Since the output part 107 outputs the train on the map in a mode that a platform at which the train stops can be visually recognized, a user's getting on a wrong train at a station and congestion in a station premise can be reduced.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a train position output device for displaying a train position on a map.

  2. Description of the Related Art Conventionally, websites that map and display train travel positions on a map based on train schedule information are known.

  For example, on the website shown in Non-Patent Document 1, the train operation position at a target time (current time, time selected by the user, etc.) on a railroad track in Japan is shown on a track. A service that maps to and displays is provided.

  In addition, the website shown in Non-Patent Document 2 shows a service that maps and displays the operation position of the current time of the subway on the track for the subway in London.

  In the websites shown in Non-Patent Documents 1 and 2, since the operation positions of all trains are updated at a predetermined cycle, the user can see the status of movement of each train mapped on the map.

“Railway NOW”, [online], [October 29, 2014 search] Internet <URL: http://www.demap.info/tetsudonow/> “Live Train map for London Underground”, Matthew Somerville, [October 29, 2014 search] Internet <URL: http://traintimes.org.uk/map/tube/>

  By the way, in recent years, railway networks have become more complex, and for example, stations in urban areas such as Tokyo and Osaka have become larger, making it difficult to use trains and facilities at the stations. For all trains that pass through or stop at a station, if there is a service that displays on the map of the station the running status of the trains entering the platform and the stop position of each vehicle on the train, the user can Since facility information can be obtained visually, the convenience of the station is improved.

  For example, if the stop position of the platform differs depending on the type of train (for example, limited express, stop at each station, etc.), if the situation of entering or stopping on each train's platform is visually identified on the map, each train The user can also visually check the positional relationship between the entrance of the vehicle and each facility such as elevators, escalators, and ticket gates in the station, making it easy for the user to know the direction of travel within the station and the platform of the train to board. Convenience such as becoming improved.

  However, the conventional technique (the technique of Non-Patent Document 1 and Non-Patent Document 2 described above) that maps and displays the operation position of a train on the currently provided map is a map that has a plurality of platforms at a station. The train position cannot be presented so that you can see the platform where the train stops.

  In addition, the conventional technology only represents the position of the long train as one point in the vehicle organization, and displays the movement status on the map of the position with the symbol mark of the train, the subway mark, etc. It is not possible to display the train entry status and the state of stopping at the station platform in the form of a train that shows the vehicle organization. That is, in the prior art, the stop position of the train in the platform is not known.

  Further, in the prior art, the update interval of the train operation position is relatively long, and the train position mark displayed on the map cannot be moved along the track. Therefore, in the prior art, the train figure (a train figure with a long length) that connects multiple vehicles is smoothly moved along the track on the map, and the status of stopping at a predetermined position on the platform of the station is displayed. I can't let you. That is, in the prior art, the movement of the train in consideration of acceleration cannot be displayed.

  The train position output device according to the first aspect of the present invention includes a map information storage unit that can store map information including tracks and platform platforms, and operation information storage that can store operation information that is information related to operation of one or more trains. A train information storage unit that can store train information having a track identifier that identifies a track on which the train runs, and one or more trains that are traveling in one place at one time, A train determination unit that determines using train information, a track determination unit that uses train information to determine a track on which one or more trains determined by the train determination unit run, and a map determination unit that uses map information. The one or more trains determined by the travel line determination unit includes an output unit that outputs a map in a manner such that the train travels on the track determined by the travel line determination unit, and the output unit uses train information. The train stops at the station visually In identification may manner, outputs one or more trains trains determination unit has determined on the map, a train position output device.

  With this configuration, the user can visually recognize on the map a home where one or more trains stop.

  Moreover, the train position output device of this 2nd invention is 1st invention. WHEREIN: Train information has 1 or more stop position information which shows the stop position of the train in the platform of a station, An output part is When the train stops at the platform of the station, the train position output device outputs the train on the map in such a manner that the stop position at the platform can be visually recognized using the stop position information corresponding to the train.

  With this configuration, the user can visually confirm the stop position of the train at the station platform.

  In the train position output device of the third aspect of the invention, the train information has length information related to the length of the train, and the output unit is a length corresponding to the train. This is a train position output device that outputs a train having a length corresponding to the length information on a map.

  With this configuration, a train having a length can be expressed.

  In addition, the train position output device of the fourth aspect of the invention is directed to any one of the first to third aspects of the invention. When the output unit visually outputs the traveling of the train, it departs from one station. , Gradually increase the speed of the train and gradually decrease the speed of the train from any point between one station and the next station to arrive at the next station. In this manner, the train position output device outputs a train on a map.

  With this configuration, the user can visually recognize the operation status of the train in consideration of acceleration and deceleration on the map.

  The train position output device according to the fifth aspect of the present invention provides a train identifier that identifies a train for each of one or more trains, and a train position for any one of the first to fourth aspects of the invention. It is a train position output device which has two or more operation position time information which is a set of position information and time information.

  With this configuration, the user can visually recognize on the map a home where one or more trains stop.

  Further, in the train position output device of the sixth aspect of the invention, the map information is divided into two or more meshes, and the operation position time information is a mesh identifier for identifying the traveling mesh. And a train position output device that is a set of time information.

  With this configuration, high-speed processing is possible, and as a result, the train operation status can be displayed with natural movement.

  The train position output device according to the seventh aspect of the present invention is a train position output device in which the operation information storage unit holds the operation information in advance with respect to the fifth or sixth aspect of the invention.

  With this configuration, high-speed processing is possible, and as a result, the train operation status can be displayed with natural movement.

  According to the train position output device according to the present invention, it is possible to visually grasp on the map, for example, the operation status of the train at the station platform and the arrangement relationship of the facilities with respect to the stop position of the train.

Block diagram of a train position output device in an embodiment Flow chart for explaining the operation of the train position output device The figure which shows an example of the map information stored in the map information storage part The figure which shows the example of the map information which made the display magnification of the map information shown in the same figure 3 high The figure which shows an example of the operation information stored in the operation information storage part The figure which shows the concept of the same 3D index tile The figure which shows an example of the train information stored in the train information storage part The figure which shows an example of the image which shows the train position using the map information of the same FIG. The figure which shows an example of the image of the train displayed on the map information The figure which shows an example of the image of the train arrange | positioned on the track of the curve drawn on the map information The figure which shows an example of the image which shows the train position using the map information of the same FIG. The figure which shows an example of the cubic Bezier curve The figure for demonstrating four control points of the cubic Bezier curve set to the map information The figure for demonstrating the position of the vehicle of the train arrange | positioned on the track of the map information The figure for demonstrating the train position function which calculates | requires the position of the image of the train on the track of the map information The figure for explaining the time zone of the train which exists in the place which corresponds to the same map tile Overview of the computer system that realizes the train position output device The figure which shows the internal configuration of the computer system

  Hereinafter, an embodiment of a train position output device will be described with reference to the drawings. Note that, in the embodiment, the components denoted by the same reference numerals perform the same operation, and thus the description thereof may be omitted.

(Embodiment 1)
In the first embodiment, the train position output device 1 that outputs on a map will be described so that the traveling state of the train when the train is traveled along the track based on the operation information can be visually grasped. .

  FIG. 1 is a block diagram of a train position output device 1 according to the first embodiment.

  The train position output device 1 includes a map information storage unit 101, an operation information storage unit 102, a train information storage unit 103, a reception unit 104, a train determination unit 105, a travel line determination unit 106, and an output unit 107.

  The map information storage unit 101 stores map information including tracks and platform platforms. The map information is created in a format such as KIWI format, for example. The data structure of map information is not questioned.

  The map information includes, for example, information such as a map image, one or more character strings such as station names and place names. The map information includes information on longitude and latitude positions. Further, the map information includes a function representing the shape of the track drawn on the map and a function for obtaining the position of the train on the track in the travel time zone of the train traveling on the track. These functions will be described later.

  The map information may be, for example, one image, or may be a set of maps obtained by dividing one map into two or more meshes and expanding the divided portion to the original size. As the map image, for example, a map image created in a map tile format can be used. As a map image created in the map tile format, for example, an online map image of Google (registered trademark) Map can be used. The map image may be bitmap data or vector data.

  The operation information storage unit 102 stores operation information that is information related to operation of one or more trains. The operation information includes, for example, a train identifier for identifying a train and two or more operation position time information that is a set of position information and time information regarding the position of the train for each train. The train identifier is an ID for identifying a train. The position information regarding the position of the train may be an absolute position (latitude, longitude), or a relative position on a map. The relative position on the map is, for example, a mesh identifier or a relative position on the mesh. The relative position on the mesh is, for example, a relative position from the reference point (origin) of the mesh and is (x, y).

  When the map information includes a map image divided into a plurality of meshes, the operation position time information includes information on a set of a mesh identifier for identifying the mesh and time information. In other words, the operation position time information includes information on the time when the train is traveling in the area of each map for each divided map.

  The operation information is, for example, a set of (train identifier, mesh identifier, time information). It can be said that the mesh identifier is information for identifying a map tile. The time information is information indicating time, and may be absolute time or relative time from the reference time. The operation information may be, for example, a set of (train identifier, latitude, longitude, time information), a set of (train identifier, mesh identifier, relative position on the mesh, time information), or the like.

  The operation information may include a train identifier, a station identifier for identifying the station, and departure time information indicating the departure time of the station. Further, the operation information may include a train identifier, a station identifier, departure time information, and arrival time information indicating an arrival time of the station.

  The operation information is information generated from, for example, a train operation plan or a train operation chart prepared in advance for each train. The train operation plan and train operation chart include, for example, the affiliated railway company, train number, train organization, train type (type of each stop, express, express, rapid, etc.), first station, destination station, track, each station on the track This includes information such as arrival and departure times, and the departure number of the platform at each station.

  The train number of the train operation plan is information corresponding to the train identifier. The information on the starting station, destination station, arrival time and departure time of each station in the train operation plan is information corresponding to the operation position time information. The operation position time information includes, for example, information on the passage time and moving speed of a train set for a predetermined position provided on a track other than the station.

  Information on train operation plans and train operation charts can be obtained from open data of railway companies. The operation information storage unit 102 may acquire and hold information such as all train operation plans and train operation charts from all railway companies in advance, and may acquire operation information necessary for processing from the railway companies as necessary. You may make it acquire and hold | maintain.

  In addition, the operation information generation part which is not illustrated produces | generates operation information as follows from train operation plan information, for example.

  The operation information generation unit first acquires one train identifier. And an operation information generation part acquires the station identifier and departure time which are paired with one train identifier from train operation plan information. Next, an operation information generation part acquires the positional information (for example, absolute position) which becomes a pair with a station identifier from the storage part which is not shown in figure. It is assumed that position information is stored in a storage unit (not shown) in association with a station identifier. The operation information generation unit accumulates records (operation information records) constituting operation information having (train identifier, position information, departure time) in the operation information storage unit 102.

  Next, the operation information generation unit acquires the station identifier and arrival time of the next station that is paired with the one train identifier from the train operation plan information.

  Next, the operation information generation unit acquires the distance on the track between the station identifier of the previous station and the station identifier of the next station from a storage unit (not shown). It is assumed that the distance on the track between the station identifier of the previous station and the station identifier of the next station is stored in a storage unit (not shown).

  Next, the operation information generation unit calculates the distance traveled by the train identified by the train identifier after t seconds (for example, after 1 second) using the train operation function. The operation information generating unit stores a train operation function. In addition, the train operation function increases the moving speed stepwise after leaving one station, and the moving speed is gradually increased from any point between one station and the next station. It is a function that indicates that the train moves so as to arrive at the next station. The train operation function is, for example, the acceleration M at the maximum speed S in X seconds after the departure, and the acceleration − at the time of Y seconds before traveling at the maximum speed S and leaving the next station. N is a function indicating that the vehicle decelerates and stops at the stop point indicated by the stop position information of the next station.

  Next, the operation information generation unit uses the information on the track on which the train identified by the one train identifier travels (information on the line of the track) and the distance traveled after t seconds (in this case, here) The position on the track after t seconds from the platform of the previous station) is calculated. And an operation information generation part constitutes an operation information record which has (train identifier, position information of a calculated position, departure time + t). Then, the operation information generation unit accumulates the operation information record in the operation information storage unit 102.

  The operation information generation unit repeats the above processing at intervals of t seconds until one train arrives at the next station, configures an operation information record, and accumulates the operation information record in the operation information storage unit 102. To go.

  In addition, the operation information generation unit applies the above processing between the next station and the next station, and accumulates operation information records in the operation information storage unit 102. Further, the operation information generation unit performs the above processing for all trains, and accumulates a large number of operation information records in the operation information storage unit 102.

  When operation information has a train identifier and two or more operation position time information, the operation information is generated from information on a train operation plan, for example.

  The train information storage unit 103 stores one or more pieces of train information. The train information includes information on the length of the train, a track identifier that identifies the track on which the train runs, a home identifier that identifies the platform of the station where the train stops, and one or more stop positions that indicate the stop position of the train at the platform. It has information such as information. The train information includes, for example, a train identifier, a track identifier, a set of one or more station identifiers, a home identifier, and stop position information.

  The information regarding the length of the train is, for example, information of one or two or more combinations among information such as the number of train cars, the length of the train, and the type of train. The track identifier is usually a track ID, but may be a track name. The home identifier is usually a line number set for the platform of the station. The stop position of the train at the home may be defined as the stop position of the train on the track, or may be defined at the position on the platform where the train stops. When defining the stop position of the train on the track, for example, the position where the carriage on the front side of the leading vehicle stops may be set as the stop position of the train.

  The map information storage unit 101, the operation information storage unit 102, and the train information storage unit 103 are preferably non-volatile recording media, but can also be realized by volatile recording media. The process in which map information, operation information, and train information are stored in the map information storage unit 101, the operation information storage unit 102, and the train information storage unit 103 is not limited. For example, map information, operation information, and train information may be stored in the map information storage unit 101, the operation information storage unit 102, and the train information storage unit 103 via a recording medium, and transmitted via a communication line or the like. Map information, operation information, and train information may be stored in the map information storage unit 101, the operation information storage unit 102, and the train information storage unit 103, respectively. Moreover, the map information, operation information, and train information input via the input device may be stored in the map information storage unit 101, the operation information storage unit 102, and the train information storage unit 103, respectively.

  The accepting unit 104 accepts instructions and information. The accepting unit 104 may accept an operation start instruction. The operation start instruction is an instruction to start the operation of the train position output device 1. For example, the reception unit 104 receives an output instruction having place information about a place and time information about time. The location information is usually information regarding a specific location on the map or a certain area including the specific location. For example, it is information indicating locations such as Tokyo Station and Nihonbashi.

The time information may be a time expressed in standard time (for example, Y year M month D day h hour m minute s second time), or a time zone (for example, Y year M month D day h hour m ₁ minute to h hour m). It may be information expressed in a time zone of ₂ minutes. Note that the location information and time information included in the output instruction may not be received at the same time. Further, the output instruction may include only location information. For example, when the map information includes a map image divided into a plurality of meshes, the location information can be received by the mesh identifier (the divided map identifier). In such a case, the current time is normally adopted as the time information, and the train position output device 1 operates.

  The output instruction is, for example, an instruction to output a traveling state of a train that operates a place included in the place information at a time or a time zone included in the time information. The location information may be information indicating a region, information for identifying a map, information for selecting a map, information for identifying a station, or the like.

  For example, when a mesh identifier is received as the location information, the output instruction is an instruction to output the traveling status of a train that operates in the area indicated on the map having the mesh identifier at the time or time zone included in the time information.

  Here, reception means reception of information input from an input device such as a keyboard, reception of information transmitted via a wired or wireless communication line, and reading from a recording medium such as an optical disk, a magnetic disk, or a semiconductor memory. It is a concept that includes receiving information.

  An instruction or information input device may be anything such as a keyboard, a mouse, or a touch panel. The accepting unit 104 can be realized by a device driver for input means such as a keyboard, control software for a menu screen, or the like.

  The train determination unit 105 determines one or more trains traveling in one place at one time using the operation information in the operation information storage unit 102. The train determination unit 105 determines, for example, one or more trains that are traveling in a place corresponding to the place information included in the output instruction at a time corresponding to the time information included in the output instruction using the operation information.

  Since the operation information includes information on the train position and time pair for each train, the train determination unit 105 normally searches for the operation information and corresponds to the location and time information corresponding to the location information. One or more train identifiers associated with the time to be acquired are acquired.

  For example, when the map information includes a map image divided into a plurality of meshes, the train determination unit 105 includes the mesh identifier and the time information included in the operation position time information of the operation information in the output instruction. Train identifiers of one or more trains traveling in a location corresponding to the mesh identifier (divided map) corresponding to the location information included in the output instruction at the time of

  The traveling line determination unit 106 determines a line on which one or more trains determined by the train determination unit 105 travel using one or more pieces of train information in the train information storage unit 103. Since the train information is normally associated with the track identifier of the track on which the train runs for each train, the travel line determination unit 106 uses the train information to determine one or more determined by the train determination unit 105. About a train identifier, the track identifier matched with each train identifier, ie, the track on which each train runs, is determined.

  The traveling track determination unit 106 acquires, from the train information storage unit 103, for example, one or more track identifiers that are paired with the one or more train identifiers acquired by the train determination unit 105.

  The train determination unit 105 and the travel line determination unit 106 can be usually realized by an MPU, a memory, or the like. The processing procedures of the train determination unit 105 and the travel line determination unit 106 are usually realized by software, and the software is recorded in a recording medium such as a ROM. However, it may be realized by hardware (dedicated circuit).

  The output unit 107 uses the map information to output a map in such a manner that one or more trains determined by the train determination unit 105 travel on the track determined by the travel line determination unit 106. The output part 107 outputs the image of the said train on a map in the aspect which can recognize visually the platform which a train stops at a station using train information.

  Specifically, the output unit 107 reads out, from the map information storage unit 101, for example, a map image that includes a location included in the output instruction received by the receiving unit 104. Moreover, the output part 107 acquires the position in the time which the output instruction which the reception part 104 received of the train which the train determination part 105 determined using the operation information has.

  And the train determination part 105 displays the image of the train which the train determination part 105 determined on the track | line which the traveling track determination part 106 drawn on the read map using the acquired position. The output unit 107 uses the operation position time information of the operation information, for example, continuously updates the position of the train, and changes the position of the train image displayed on the map track using the update result. .

  The output unit 107 uses the vehicle organization information of the train information to create an image (a train image having a length in which a plurality of vehicles are connected) that understands the train organization of the train, and maps the train image to the map. Display on the track. Therefore, a train in which a plurality of vehicles are connected is displayed on the map in a manner of traveling on the track.

  Further, the output unit 107 outputs one or more trains determined by the train determination unit 105 on the map in such a manner that the platform where the train stops at the station can be visually recognized using the train information. Specifically, the output unit 107 acquires, from the train information storage unit 103, for example, a home identifier that is paired with one or more train identifiers acquired by the train determination unit 105. Then, the output unit 107 acquires position information corresponding to the home identifier. Next, the output unit 107 arranges the train image at the position indicated by the position information on the map.

  Specifically, the output unit 107 acquires, for example, position information that is paired with one or more train identifiers and time information acquired by the train determination unit 105 from the operation information storage unit 102, and A train image may be arranged at a position corresponding to the position information. That is, the position information may indicate the platform where the train stops and the stop position of the train.

  Further, when the train stops at the station, the output unit 107 outputs the train on the map in a manner in which the stop position at the platform can be visually recognized using the stop position information corresponding to the train. Specifically, when one or more trains determined by the train determination unit 105 stop at the platform of the station, the output unit 107 is, for example, a station identifier paired with the train identifier and time information acquired by the train determination unit 105. Is acquired from the train information storage unit 103.

  Next, the output unit 107 acquires, for example, a home identifier paired with the train identifier acquired by the train determination unit 105 from the train information storage unit 103. And the output part 107 acquires the stop position information which becomes a pair with a train identifier and a station identifier from the train information storage part 103, for example. Next, the output part 107 arrange | positions the image of a train in the stop position in the platform corresponding to the said stop position information, for example. In addition, for example, the output unit 107 can visually recognize a state in which a train in which a plurality of vehicles are connected decelerates and the carriage on the front side of the leading vehicle stops at a stop position set on the track. The train running status at the home is output on the map.

  In addition, when the train 107 visually outputs the traveling of the train, the output unit 107 gradually increases the moving speed after leaving one station, and between the one station and the next station. It is preferable to output the train on the map in such a manner that the moving speed is gradually reduced from that point and the vehicle arrives at the next station.

  In such a case, the output unit 107 holds, for example, train speed information. The information on the speed of the train is, for example, m seconds after the departure from the station (after start-up) and gradually (stepwise) rising to vkm / h, then moving at vkm / h and arriving at the next station This is information indicating that the speed is gradually decreased (stepwise) from the previous (n = m is preferable), and the vehicle stops at the next station after m seconds.

  Here, the output is a concept that usually includes display on a display, projection using a projector, transmission to an external apparatus, delivery of a processing result to another processing apparatus or another program, and the like.

  The output unit 107 may or may not include an output device such as a display or a speaker. The output unit 107 can be realized by output device driver software, or output device driver software and an output device.

  Next, an example of the operation of the train position output device 1 will be described using the flowchart of FIG.

  (Step S201) The receiving unit 104 determines whether an output instruction has been received. When the reception unit 104 receives an output instruction (S201: Y), the process proceeds to step S202. When the reception unit 104 does not receive an output instruction (S201: N), the process returns to step S201.

  (Step S202) The output unit 107 acquires map information corresponding to the location included in the location information from the map information storage unit 101, using the location information included in the output instruction received by the reception unit 104.

  (Step S203) The output unit 107 outputs the acquired map information. For example, the output unit 107 displays the map information acquired in step S203 on the display of the train position output device 1.

  (Step S204) The train determination unit 105 searches the operation information storage unit 102 using the location information and the time information included in the output instruction received by the reception unit 104, and corresponds to the location information and the time information 1 The above operation information is acquired. When there is no time information that matches the time information included in the output instruction, the train determination unit 105 obtains time information of a time approximate to the time indicated by the time information included in the output instruction and the location information included in the output instruction. The operation information storage unit 102 may be used to retrieve one or more pieces of operation information corresponding to the location information and time information. The approximate time may be the closest time, the closest time among the times indicated by the time information included in the output instruction, or the time indicated by the time information included in the output instruction. The nearest time may be used.

  (Step S205) The train determination unit 105 determines one or more trains corresponding to the one or more pieces of operation information acquired in step S204. That is, the train determination part 105 acquires the train identifier of the 1 or more train which the 1 or more operation information acquired by step S204 has, for example.

  (Step S206) The traveling track determination unit 106 sets 1 to a counter i that counts the number of trains determined by the train determination unit 105.

  (Step S207) The traveling track determination unit 106 determines whether or not the i-th train exists. If the i-th train exists (S206: Y), the process proceeds to step S208. If the i-th train does not exist (S206: N), the process proceeds to step S212.

  (Step S <b> 208) The traveling line determination unit 106 acquires the train information of the i-th train from the train information storage unit 103.

  (Step S209) The traveling line determination unit 106 determines a line on which the i-th train travels from the acquired train information. For example, the traveling track determination unit 106 acquires a track identifier included in the train information acquired in step S208.

  (Step S210) The output unit 107 is a track determined by the travel track determination unit 106, and outputs an image of the i-th train at the position indicated by the position information included in the corresponding operation information. In addition, when the train has a plurality of vehicles (when the number of vehicles included in the train information acquired in step S208 is plural), the output unit 107 sequentially selects the plurality of vehicles in the track determined by the traveling line determination unit 106. Place along. For example, information on the position of the track is included in the map information, and the output unit 107 arranges images of a plurality of vehicles on the track using the information on the position of the track.

  (Step S211) The traveling line determination unit 106 increments the value of the counter i by 1, and returns to Step S207.

  (Step S212) The output unit 107 determines whether or not the processing is finished. If the process has not ended, the process proceeds to step S213. If the process has ended, the train position output control ends.

  (Step S213) The train determination unit 105 advances the time, and then returns to step S204. The train determination unit 105 usually advances the time at a predetermined interval (for example, 3 seconds).

  In the flowchart of FIG. 2, the process is terminated by powering off or a process termination interrupt.

(Specific example 1)
Next, a specific example 1 of the train position output device 1 according to the first embodiment will be described.

  FIG. 3 is a diagram illustrating an example of map information stored in the map information storage unit 101.

  The map information shown in the figure is, for example, image information (hereinafter referred to as “map tile”) of a square tile-shaped map used for an online map of Google (registered trademark) Map.

Map tile, the map display scale "1" map you tile a square shape to exclude a portion of the polar from projected Global Mapping entire map Mercator projection, the map (horizontal 2 ⁿ × vertical 2 ⁿ⁾ (n: 1 or more integer) is divided into pieces, a map of the map obtained by enlarging the area corresponding to the divided portion on a map and the same size of the display magnification "1" (i.e., display magnification "1" Is a set of maps with a display magnification of (2 ⁿ × 2 ⁿ ) times.

  A plurality of map tiles having different display magnifications are identified by identifiers provided for each map tile. The identifier set for the map tile corresponds to the mesh identifier of the present invention.

The map information storage unit 101 stores, for example, Japanese map information composed of a plurality of map tiles. Examples of the map shown in FIG. 3, of the map tiles line R1, R2 is drawn across a plurality of map tiles, which is an image of the map tiles MT _A part that contains the station S. If the display magnification is lowered, the portion including the station S can be represented by a map tile on which the entire track R is drawn.

FIG. 4 is an example of the map tile MT _B in which the display magnification of the map tile MT _A shown in FIG. 3 is increased to a level where the structure of the platform H of the S station can be understood.

On the map tile MT _B , a one-sided and two-line type platform H of S station is enlarged and drawn. The track R1 is a track that is arranged on one side of the platform H (in FIG. 4, above the platform H), and the train enters the platform H from the left side. On the other hand, the track R2 is a track that is arranged on the other side of the platform H (below the platform H in FIG. 4), and the train enters the platform H from the right side. Map tile MT _B has a stop position information M indicating the stop position of the leading vehicle arranged train at a predetermined position of the portion along the home H of the line R1, R2.

  Since the train organization differs depending on the train and the stop position of the leading vehicle of the train with respect to the home H may differ, a plurality of stop position information M is provided on the tracks R1 and R2. An identification number is added to the stop position information M at different positions.

  FIG. 5 is a diagram illustrating an example of operation information stored in the operation information storage unit 102.

  The operation information is a collection of information related to the operation of a plurality of trains. The operation information is generated by the operation information generation unit described above. In the operation information, information regarding the operation of each train is associated with a plurality of train identifiers “AAA”, “BBB”, “CCC”,. The information regarding the operation includes two or more operation position time information that is a set of a travel position and a travel time on the track from the departure station to the destination station.

  The operation position time information is a set of a set of a travel position on the track and a travel time at a predetermined time interval in the operation time from when the train leaves the departure station to the destination station. The operation position time information is created based on the operation plan of each train. The operation position time information includes information on the mesh identifier of the map tile including the travel position.

  FIG. 5 shows the operation position time information about the departure station, the destination station, and the station between the departure station and the destination station. It is omitted for convenience.

  About the content of the operation position time information described in FIG. 5, an example of a train with the train identifier “AAA” will be described. Since the contents of the train operation position time information of the train identifiers “BBB”, “CCC”,... “ZZZ” are the same as the train of the train identifier “AAA”, the description thereof is omitted.

“A0”, “a1”,... “An” is station identifier information for identifying a station. The station identifier is, for example, a station number assigned to each station in order from the departure station to the destination station. “D _a0 ”, “D _a1 ”,... “D _an ” are distances from the departure station corresponding to the station identifiers “a 0”, “a 1”,. “D _a0 ” is the distance of the departure station of the station identifier “a0” (hereinafter sometimes referred to as the station “a0”; the same applies to other stations), but the departure station “a0” is used as a reference. Therefore, D _a0 = 0. Since “D _an ” is the distance from the destination station “an”, it corresponds to the length of the track from the departure station “a0” to the destination station “an”. “T _a0 ”, “t _a1 ”,... “T _an ” are information on departure time, stop or pass time, and end time corresponding to each station “a0”, “a1”,.

_{"MT a0", "MT a1", "MT a2",} ... _{"MT an"} is, _{"t a0", "t a1",} ... time train train identifier "AAA" is traveling to the _{"t an"} This is information on the identifier (mesh identifier) of the map tile including the current position. In FIG. 5, since the position of the train with the train identifier “AAA” at the time “t _a0 ”, “t _a1 ”,... “T _an ” is a station, each time “t _a0 ”, “t _a1 ” _,. The mesh identifier associated with “t _an ” is a mesh identifier of a map tile including a station where the train with the train identifier “AAA” travels.

The position where the train is traveling may be included in a plurality of map tiles having different display magnifications. For example, in the example of FIGS. 3 and 4, the S station is included in the map tile MT _A and the map tile MT _B. Therefore, the mesh tile mesh identifier information included in the operation position time information may include a plurality of mesh identifiers. For example, if the station "a1" the train of train identifier "AAA" to stop is S Station, station information of the mesh identifier associated with the stop time "t _a1" of "a1", the map tile MT _A and map It has two mesh identifiers for tile MT _B.

  The reason why the operation position time information, which is a set of the time information and the mesh identifier, is provided in the operation information of each train is to speed up the search process for the trains that run on the place drawn on the map tile. . The operation position time information, which is a set of time information and mesh identifier, is a place drawn on a map tile having the mesh identifier at a time corresponding to the time information (hereinafter referred to as “location corresponding to a map tile”). Can be used as index information for obtaining a train traveling on the road.

  FIG. 6 is a diagram illustrating a concept of a data structure when the operation position time information is used as index information.

  The data structure shown in FIG. 6 has a structure in which, for each map tile, a train running in a location corresponding to each map tile is associated with each time width δt in units of a predetermined time width δt (seconds). Yes.

For example, δt is 20 seconds, and from 00:00 to 00:00:20, two trains T _A and T _B are traveling in a location corresponding to the map tile, and 00:00:20 to 00:20: at 00:40, the case is in the same location that was the situation in which only train _{T a} is running, 00: 00: 00 in the time zone of 00:00:20, to map tile train _T a, of _{T B} train identifier is associated with, 00: 00: in the time zone of 20 from 00:00:40, train identifier of the train _{T a} is associated with the map tile.

FIG. 6 shows an xyz three-dimensional coordinate system in which a time axis t is provided in a direction perpendicular to the tile surface for a map tile MT, and a train identifier is associated with each scale position on the time axis t. The map tile MT is arranged. For example, when the time widths of 00:00:00 to 00:00:20, 00:00:20 to 00:00:40,... Are associated with the scales “0”, “1”,. in the example above, the train T _a graduated "0" in the time axis _t, the map tiles MT are arranged a train identifier associated of T _B, train identifier of the train T _a to scale "1" of the time axis t Is associated with the map tile MT. Hereinafter, the index information for each map tile having the structure shown in FIG. 6 is referred to as a “three-dimensional index tile”.

For example, operation information of the train identifier "AAA" shown in FIG. 5 the station identifier of S Station, which was drawn on the map tile MT _A shown in FIG. 3 has a "a1", train identifier starting at the time t _a0 "AAA" present in the head vehicle the time _t 1 of the train _{(t a0 <t 1 <t} a1) to a position _{P a} corresponding to the boundary between the lower map tiles map tiles MT _a (see FIG. 3), the train Is present at the position P _b (see FIG. 3) corresponding to the boundary with the map tile on the right side of the map tile MT _{A at} the time t ₂ (t _a1 <t ₂ <t _a2 ), the train identifier “ From the time t ₁ to the time t ₂ , the train “AAA” means that the entire train or a part of the train exists at a location corresponding to the map tile MT _A.

Accordingly, the three-dimensional index Tile map tiles MT _A, arranged map tiles MT _A a train identifier "AAA" is associated with the position of the graduation in correspondence from time t ₁ until time t ₂ time zone of the time axis t Will be.

  In FIG. 5, the operation information is shown by the contents in which the operation position time information is associated with each train, but for each mesh identifier, the correspondence relationship between each mesh identifier and the set of the train travel position and the travel time is illustrated. If it arrange | positions to the three-dimensional coordinate shown in 6, operation information can be represented by the content of the three-dimensional index tile.

  When a 3D index tile is used, a map tile is specified as location information. When arbitrary time information is specified, it exists at a location corresponding to the map tile specified at the time or time zone corresponding to the time information. You can ask for all trains.

  FIG. 7 is a diagram illustrating an example of train information stored in the train information storage unit 103.

  The train information includes information indicating the correspondence between the train identifier of the train and the line identifier of the route on which the train runs, information on the train organization of the train, and information such as the home identifier and stop position information for each stop station. include. Although not shown, the train information includes information such as the size of the vehicle, the position of the carriage provided in the vehicle, and the processing between the carriages.

In FIG. 7, route identifiers are represented by “R _a ”, “R _b ”,... “R _z ”. The track identifier may be a name such as “Tokaido Main Line” or may be a track identifier assigned to each route. In addition, the notation the number of vehicles of the train at the _{"n a"} labeled _{"n b",} ... _{"n z",} the home identifier of each stop station _{"N a1", "N a2",} ... _{"N an"} doing. The numbers “1”, “2”, etc. under the home identifier are numbers of the stop position information M provided for each home identifier.

  Next, the train position output operation of the train position output device 1 of the specific example 1 will be described.

  For example, when the receiving unit 104 receives an output instruction having location information and time information input by the input device, the output unit 107 uses the location information included in the output instruction to read the information from the map information storage unit 101. Map information corresponding to the location included in the location information is acquired.

For example, if the location included in the location information near S station, the output unit 107 as a map tile containing S stations, for example, reads map tiles MT _A shown in FIG. 3 from the map information storage unit 101, the train position output This is displayed on the display of the device 1. In addition, as a map tile including S station, there is also a map tile MT _B shown in FIG. 4, but the output unit 107 outputs a map tile MT _A having a display magnification set in advance as a default.

  Next, the train determination unit 105 uses the location information and time information included in the output instruction and the operation information stored in the operation information storage unit 102 to set the time corresponding to the time information specified in the output instruction. The train identifier of the train traveling in the place corresponding to the designated place information is acquired.

For example, when the location information included in the output instruction is information on the location where the S station is (information such as XX town) and the time information included in the output instruction is information on the time zone (t _{A to} t _B ), the train determination unit 105 obtains the train identifier traveling the location of the S station in the time zone from the service information shown in FIG. 5 _(t a _{~t B).}

For example, if the S station is the station with the station identifier “a1” of the operation information and the time t _a1 associated with the station identifier “a1” is (t _A <t _a1 <t _B ), the train determination unit 105 acquires a train identifier “AAA” as a train identifier corresponding to the output instruction. Train determining unit 105, in addition to a train identifier _"AAA", if there is a train identifier present in the location included in the map tiles MT _A in _(t A ~t _B), to get them train identifier.

For example, in the map tile MT _A shown in FIG. 3, arrived at the S station in time t _a1 train of train identifier "AAA" is traveling on the line R1 from the lower side to the upper side, train identifier train line of "ZZZ" When traveling on the R2 from the upper side to the lower side and arriving at the S station at the time t _z1 (t _A <t _z1 <t _B ), the train with the train identifier “ZZZ” also has the map tile MT at (t _A -t _B ). Since it exists in the place included in _A , the train determination part 105 also acquires train identifier "ZZZ".

The train determination unit 105 searches the train position time information for the train identifier associated with the time zone of the mesh identifier (t _{A to} t _B ) of the map tile MT _A , thereby (t _{A to} t _B in the time zone of the) may acquire one or more of the train identifiers that are present in a location corresponding to the map tile MT _a.

Next, the travel track determination unit 106 acquires train information of each train identifier from the train information storage unit 103 for the acquired one or more train identifiers, and acquires a track identifier corresponding to each train identifier. For example, when the train determination unit 105 acquires the train identifiers “AAA” and “ZZZ”, the traveling line determination unit 106 includes the track identifier “R _a ” corresponding to the train identifier “AAA” and the train identifier “ZZZ”. The line identifier “R _z ” corresponding to “is acquired.

Then, the output unit 107, map the train position output device 1 of the display displayed on the map tiles MT _A, train image train identifier obtained is, the specified time period _(t A _{~t B)} An image (moving image) of the situation of moving on the track of the track identifier of the tile is displayed.

For example, the train determination unit 105 acquires train identifiers “AAA” and “ZZZ”, and the _first vehicle of the train at time t ₁ (t _A <t ₁ ) from the train operation information of the train identifier “AAA”. enters the map tiles MT _a, when exiting the map tiles MT _a at time _{t 2 (t 2 <t B} ), the output unit 107, as shown in FIG. 8, is displayed on the display of train position output device 1 was on the map tiles MT _a, the image (FIG. 8 a train image GT _a of the train identifier "AAA" is moved on the line R1 of the line identifier _{R a,} videos image GT _a moves on line R1 on the upper side ) Is displayed.

In addition, the output unit 107, enters from the train operation information of the train identifier "ZZZ" in the map tile MT _A the train of the first vehicle is time _{t3 (t A <t 3)} , time t4 _(t 4 <t _B ) when exiting the map tiles MT _a, on the same map tiles MT _a, train image GT _Z of the train identifier "ZZZ" is moved on the line of the line identifier _{R z} (map tiles MT in _a line R2) (in FIG. 8, the image GT _Z is moving to move the upper line R2 on the lower side) image is displayed.

The output processing of the train position, the output unit 107, as shown in FIG. 9, a rectangular vehicle image number vehicle corresponding to the train identifier "AAA" of the train information from the "n _a" and n _a number linked An image GT _A of a strip train is created.

The train image GT _A has a shape obtained by connecting a plurality of strip-shaped vehicle images GC. The number of connections in the vehicle image GC matches the number of vehicles connected to the actual train. Further, the vehicle image GC is obtained by simplifying the shape of the actual vehicle in a top view to a rectangular shape, and the size _DL (particularly the length in the longitudinal direction) of the vehicle image GC is the actual vehicle size. The size is reduced.

  Note that the longitudinal lengths of the vehicles are not all the same. In FIG. 9, the lengths of the vehicle images are all the same, but when different types of vehicles are donated, the lengths of the vehicle images are different. Therefore, even if the number of vehicles is the same, the length of the train image varies depending on the types of vehicles connected.

Time information of the train position and time information shown in FIG. 5, since the front side of the carriage positions PD _F of the leading vehicle of the train, the output unit 107, and the side of the carriage positions PD _R after the beginning vehicle, the second car after each vehicle carriage positions PD _F, PD and _R were calculated from the shape of the bogie spacing and the vehicle coupling interval and the line, the vehicle speed from the train information train stored in the train information storage unit 103 identifier "AAA", bogie distance , and reads the information of the distance between the vehicle coupling is calculated carriage positions PD F of each vehicle on line map tiles MT _a, the PD _R.

Then, the output unit 107, as shown in FIG. 10, carriage positions _PD F images of the respective vehicle corresponds, to be placed in PD _R, placing the train image GT _A of the train identifier "AAA". Image GT _A train train identifier "AAA", since the image of each vehicle corresponding carriage position PD _F, is disposed in PD _R, trains with a length even if the shape of the line R1 is curved The image GT _A is arranged along the curve of the line R1.

The output unit 107 sequentially reads data of a set of time and travel position included in the range from time t ₁ to time t ₂ from the train position time information of the train identifier “AAA” at a preset cycle, and the map tile MT _A train image GT _A is arranged in order at each travel position on _A. As a result, the position of the train image GT _{A on} the map tile MT _A moves, and a moving image of the situation in which the train image GT _A is traveling on the track R1 is displayed on the map tile MT _A (see FIG. 3). ).

Further, the output unit 107 sequentially reads out the data of the set of the time and the travel position included in the range from the time t ₃ to the time t ₄ from the train position time information of the train identifier “ZZZ” in a preset cycle. in the train image GT _a output method similar to, placing images GT _Z train sequentially to each travel position on the map tiles MT _a. As a result, the position of the train image GT _{Z on} the map tile MT _A moves, and a moving image of the situation in which the train image GT _Z is traveling on the track R2 is displayed on the map tile MT _A.

When the location information of the output instruction received by the receiving unit 104 is S station, for example, a map tile MT _B shown in FIG. 4 is read from the map information storage unit 101 as a map tile of the S station, and the train position output device 1 is displayed. Again, train identifier "AAA" using map tiles MT _A described above, the train of the image _GT A of "ZZZ", GT _Z is line R1, similar to the output processing of the video showing the situation of travel on R2 Processing is performed.

For example, the map tiles MT _A shown in FIG. 4, the leading vehicle is the time _t 5 train train identifier "AAA" _{(t 1 <t 5 <t} a1) the boundary between the left map tiles Map tiles MT _B present in the corresponding position _{P c} (see FIG. 4), corresponding to the boundary between the right map tiles map tiles MT _B rearmost vehicle the time _t 6 of the same train _{(t a1 <t 6 <t} 2) _{Suppose that} it exists in position _Pd (refer FIG. 4).

In addition, the position P _e corresponding to the boundary of the map tile MT _{B on} the right side of the map tile MT _{B at} the time t ₇ (t ₁ <t ₅ <t ₇ <t _a1 ) is the leading vehicle of the train with the train identifier “ZZZ” (FIG. 4), and the last vehicle of the same train corresponds to the position P _f (t _a1 ) corresponding to the boundary between the map tile MT _{B and} the left map tile at time t ₈ (t _a1 <t ₆ <t ₈ <t ₂ ). (See FIG. 4).

In other words, in the map tile MT _A shown in FIG. 4, after arriving to S station to train the time _{t a1} of the train identifier "AAA" in the time period _(t 5 ~t _8), train train the time of the identifier "ZZZ" Assume that the train arrives at S station at (t _a1 + δt _z ).

The output unit 107 reads the map tile MT _B shown in FIG. 4 from the map information storage unit 101 and displays it on the display of the train position output device 1.

Next, the train determination unit 105 acquires the train identifiers “AAA” and “ZZZ” of the trains existing at the S station in the time zone (t _{5 to} t ₈ ) from the operation information storage unit 102. In addition, the traveling track determination unit 106 determines from the train information storage unit 103 the track identifier “R _a ” corresponding to the train identifier “AAA”, the number of vehicles “n _a ”, and the home identifier in the station identifier “a1” corresponding to the S station. “N _a1 ” and the number “1” of the stop position information M are acquired, the track identifier “R _z ” corresponding to the train identifier “ZZZ”, the number of vehicles “n _z ”, and the station identifier “z1” corresponding to the S station. The home identifier “N _z1 ” and the stop position information M number “2” are acquired.

Then, the output unit 107, the train position output device map tiles MT on _B displayed on the primary display, a train identifier "AAA", train image "ZZZ" is the time period _(t 5 _~t 8) line identifier R _a map tiles MT _{B in,} displays the image of the situation in which respectively move the upper line of R _z (video).

For example, the output unit 107, as shown in FIG. 11, the train position output device 1 of the display displayed map tiles MT on _B, the train identifier train image GT _A of "AAA" is the line identifier R _a line the incoming line to S station of the home and move while decelerating the above R1, and displays an image showing the state of stopping in time t _a1 to the position of the stop position information M of "1" of the home identifier n _a. Further, the output unit 107 is an image showing a state in which the image GT _{A of} the train subsequently departs and accelerates and exits the platform of the S station (in FIG. 11, the image GT _A moves to the right on the track R1. Video to play).

In the display process of the train image GT _A , the output unit 107 includes the time included in the range from time t ₅ to time t ₆ (t ₅ <t _a1 <t ₆ ) from the train position time information of the train identifier “AAA”. sequentially reads a set of data travel position at a preset period, placing images GT _a train sequentially to each travel position on the map tiles MT _B.

As a result, the position of the train image GT _{A on} the map tile MT _B moves, and on the map tile MT _B , the train image GT _A enters the _platform of the S station while decelerating the track R1, and at time _ta1 . and how to stop at the position of the stop position information M of the home identifier n _a number of "1", then the same train of image GT _a image of a state in which exiting from S Station of home while accelerating starting the display Is done.

Further, in the display process of the image GT _Z train, the output unit 107, a train identifier "ZZZ" range from the train position and time information of the time _{t 7} ~ time _{t 8} in _{(t 7 <(t a1 +} δt z) <t 8 sequentially reads a set of data of time and traveling positions included in) at a preset period, placing images GT _Z train sequentially to each travel position on the map tiles MT _a.

As a result, the position of the train image GT _{Z on} the map tile MT _B moves, and the train image GT _B enters the platform of the S station while decelerating the track R2 on the map tile MT _B , and the time ( _ta1) + and how to δt _z) is stopped at the position of the stop position information M of the home identifier n _a number of "2", how the then in the same train image GT _B of leaving the S Station of home while accelerating starting Is displayed.

(Specific example 2)
In the above specific example 1, as the train operation information, information on a set of the travel position and travel time on the train line created at predetermined time intervals is set, and the train image is displayed on the map tile using the information. Although it was moved, the specific example 2 is the train on the track | line of each map tile based on the actual operation plan of the said train about all the trains which drive | work the track drawn on each map tile for every map tile. A function Δ (t) (t: time of operation; hereinafter referred to as “train position function Δ (t)”) for determining the display position of the image is set, and the train position function Δ (t) is used to The image is moved on the map tile.

  In the specific example 2, when the output unit 107 determines the map tile to be displayed on the display of the train position output device 1, all the trains that travel the place corresponding to the map tile at the time specified by the output instruction by the train determination unit 105. In addition to determining the train train identifier, the traveling track determination unit 106 determines the track identifier corresponding to each train identifier, and the output unit 107 uses the train position function Δ (t) corresponding to each train identifier on the map tile. The process of calculating the display position of the train image is performed at predetermined time intervals.

  In order to ensure the continuity of the motion of the train image moving on the map tile, it is necessary to instantaneously determine all the train identifiers to be displayed on the map tile. For this reason, in the specific example 2, the three-dimensional index tile shown in FIG. 6 is obtained in advance and stored in the operation information storage unit 102 as train operation information. Since the contents of the three-dimensional index tile have already been described, the description thereof is omitted here.

  First, map information stored in the map information storage unit 101 will be described.

  The map information storage unit 101 stores a large number of map tiles having different display magnifications used for, for example, an online map of Google (registered trademark) Map.

A large number of map tiles having different display magnifications are identified by “zoom level”. The zoom level 1 map tile is a map tile of the entire earth map with a display magnification of 1. A map tile of “zoom level n” (n is an integer equal to or greater than 1) is a map tile group in which (2 ⁿ × 2 ⁿ ) map tiles are arranged to form a square.

  Multiple map levels of the same zoom level are identified by their placement in the square. Specifically, the position of the map tile arranged at the upper left corner of the square is (0, 0), the positive coordinate of x is assigned to the tile position in the horizontal direction, and the negative value of y is assigned to the downward tile position. By assigning direction coordinates, a plurality of map levels having the same zoom level are identified by (x, y) coordinates.

  Accordingly, a large number of map tiles having different display magnifications are identified by the (z, y, x) coordinates, with the zoom level n assigned to the z coordinates. Each map tile has an identifier denoted as “z / x / y”. This identifier corresponds to the mesh identifier of the present invention.

  The map drawn on the map tile is a map measured using the WGS84 geodetic system (EPSG4326). Therefore, an arbitrary position on the map tile is defined by latitude and longitude.

In the map tile, a function indicating the shape of the track drawn on the map tile is set. For example, map tiles MT _A shown in FIG. 3 includes information of a function indicating the shape of the line R1, R2.

The function indicating the shape of the track is obtained by dividing the track into a plurality of sections and expressing the shape of each section by, for example, a function of a cubic Bezier curve. As shown in FIG. 12, the cubic Bezier curve is a curve whose shape is determined by four control points B ₀ , B ₁ , B ₂ , and B ₃ , with the control point B ₀ and the control point B ₃ as both ends. It is. Thus, the cubic Bezier curve of each section of the line, the positions of both ends of each section and control points B _0, B _3, control points B ₁ in a position such that the curve shape of each section is the shape of the line, It is determined by placing the B _2.

In this specific example, for the control points B _0, B ₃ of the cubic Bezier curve, although each set of coordinates of latitude and longitude on line, for the control points B _1, B _2, respectively control points B ₀ defines the position on the map tiles by setting the direction and distance to B _3.

That is, as shown in FIG. 13, in addition to the control points B ₀ and the direction angle theta ₀ information of the distance D ₀ from the control point B _0, the position of the control point B ₁ is to allow calculation, control points B ₃ adds information of the distance D ₃ from the direction angle theta ₃ control points B _3, the position of the control point B ₂ is allowed to be calculated. Thereby, the information content of the position of the control point of the cubic Bezier curve showing the shape of the track is reduced.

  Next, the train image displayed on the map tile will be described.

  Also in the specific example 2, as in the specific example 1, the image of the train traveling on the map tile track is represented by an image imitating an actual train in which a plurality of vehicles are connected. For this reason, the train image has a shape obtained by connecting a plurality of strip-shaped vehicle images GC (see FIG. 9). The vehicle image GC is obtained by simplifying the shape of the top view of the actual vehicle into a rectangular shape, and the length of the vehicle image GC in the longitudinal direction is a size obtained by reducing the size of the actual vehicle.

As shown in FIG. 14, in an actual vehicle, two carriages DT are attached to the lower surface of a vehicle body TB so as to be swingable in a horizontal plane, and the wheels of each carriage DT are moved on a track. The display mode of the driving situation along the line of the image GC vehicle, in order to simulate the driving situation of the actual vehicle, as shown in FIG. 14, it is provided carriage positions PD _F, the PD _R to image GC vehicle . Carriage positions PD _F is the position of the front carriage, carriage positions PD _R is a position of the rear bogie.

  Next, the train position function Δ (t) for obtaining the display position of the train image on the map tile track will be described.

  The train position function Δ (t) is created using the passing position information of the train in the operation plan provided by the railway company. For example, when the train travels from the A station to the B station, the passing position information is a set of a plurality of passing or stopping positions that are discretely set between the A station and the B station, and a plurality of times. This is information on a set of a position where the vehicle passes or stops, its time, and a passing speed.

As train trip plan, the distance _d 0 on line the train is _traveling, d _1, d 2, ... position _{P 0,} P _1, P 2 of _{d n,} ... pass against _{P n} times _t 0, _{t 1} , T ₂ ,..., T _n passing position information is set, in this specific example 2, trains in each section of P _i −P _{i + 1} (i = 0, 1, 2,... (N−1)). The position function Δ _i (t) is created by cubic spline interpolation. Specifically, Δ _i (t) is represented by Δ _i (t) = a _i0 + a _i1 · t + a _i2 · t ² + a _i3 · t ³ , so that trains in each section (P _i −P _{i + 1} ) A set of coefficients a _i0 , a _i1 , a _i2 , a _i3 of the position function Δ _i (t) is set.

Note that the train position function Δ _i (t) of each section (P _i −P _{i + 1} ) is created so as to satisfy the condition that the first and second derivatives of the boundary point are continuous.

In addition, in the train passing position information of the actual operation plan, information on a set of distance and passing time from the departure station to the passing point (pattern A information), distance from the starting station to the passing point, and passage time And information on the set of passage speeds (including speed 0) (information on pattern B) are mixed. When obtaining n train position functions Δ _i (t) (i = 0, 1,... (N−1)) by spline interpolation, the time axis is divided at the passing points having the pattern B information, and the divided range. The train position function Δ _i (t) for each section is created by spline interpolation.

For example, as shown in FIG. 15 (a), with respect to positions P ₀ , P ₁ , P ₂ , P ₃ , P ₄ on the track on which the train runs, positions P ₁ , P ₃ have a pattern A Information (d ₁ , t ₁ ), (d ₃ , t ₃ ) is set, and information (d ₀ , t ₀ , v ₀ ), (d ₁ ) of pattern B is set at positions P ₀ , P ₂ , P _4. , T ₁ , v ₁ ), (d ₄ , t ₄ , v ₄ ) are set. In FIG. 15A, arrows at points P ₀ , P ₂ , and P ₄ indicate that the speeds v ₀ , v ₂ , and v ₄ are set.

If in FIG. 15 (a), separate the time axis at time _{t 0, t 2, t 4} , as shown in FIG. 15 _(b), by spline interpolation in the range of _{t 0 ~t 2, (t 0} -t _{1), (t 1} -t ₂ train location functions in each _{compartment) Δ 0 (t), Δ} 1 (t) is _created by a spline interpolation in the range of _{t 2 ~t 4, (t 2} -t 3 ), (T ₃ −t ₄ ), train position functions Δ ₂ (t) and Δ ₃ (t) in each section are created. Then, Δ ₀ (t), Δ ₁ (t), Δ ₂ (t), and Δ ₃ (t) are connected to create a train position function Δ (t) in the range of t ₀ to t ₄ .

  The three-dimensional index tile stored as operation information in the operation information storage unit 102 uses, for each map tile, a train position function Δ (t) created for a train traveling in a location corresponding to each map tile. Are created in advance.

As a result of obtaining the movement position Δ (t) on the track R of the train image GT of the train identifier “AAA” using the train position function Δ (t), for example, as shown in FIG. If the top position PD _F of enters the map tile MT in time h time of m minutes s seconds, to exit from the map tile MT at the end position PD _R is at the time h m minutes (s + δs) seconds of the same train of image GT In the three-dimensional index tile of the map tile MT, the train identifier “AAA” is associated with a scale on the time axis corresponding to the time from time h hour m minute s second to time h hour m minute (s + δs) second. A map tile MT is arranged.

  When a train other than the train identifier “AAA” is present at a location corresponding to these map tiles MT, the map tile MT in which the train identifier of the train is associated with the train identifier “AAA” They are arranged on a scale on the time axis corresponding to the time from h hour m minute s second to time h hour m minute (s + δs) second.

In addition, when the train-identifier traveling on the location corresponding to a certain time period (τ _a ~τ _b) to map tile MT there is no one, the scale on the time axis corresponding to the time period (τ _a ~τ _b) No map tile MT will be placed.

  Next, the train position output operation of the train position output device 1 of the specific example 2 will be described.

  For example, when the receiving unit 104 receives an output instruction having location information and time information input by the input device, the output unit 107 uses the location information included in the output instruction to read the information from the map information storage unit 101. Get the map tile corresponding to the location included in the location information.

For example, if the location included in the location information near S station, as the map tiles containing S stations, for example, map tiles MT _A shown in FIG. 3 is read out from the map information storage unit 101, the train position output device 1 It appears on the display.

Then, the train determining unit 105, and location information and time information contained in the output instruction, by using the three-dimensional index Tile map tiles MT _A stored in the operation information storage section 102, designated by the output instruction at a time corresponding to the time information, to get the train of train identifier traveling on the location corresponding to the map tile MT _a.

For example, when the location information included in the output instruction is information on the location where the S station is (information such as XX town) and the time information included in the output instruction is information on the time zone (t _{A to} t _B ), the train determination unit 105, associated with the map tiles MT hours of the three-dimensional indices of _{a (t a} ~t _B) map disposed scale of the time axis corresponding to the tile MT _a on the map tiles MT _a train Get an identifier.

For example, the time zone _(t A ~t _B) train identifier associated with the map tiles MT _A disposed scale of the time axis corresponding to the "AAA" if "ZZZ", the train determiner 105 The train identifier “AAA” and the train identifier “ZZZ” are acquired.

Next, the travel track determination unit 106 acquires train information of each train identifier from the train information storage unit 103 for the acquired one or more train identifiers, and acquires a track identifier corresponding to each train identifier. For example, when the train determination unit 105 acquires the train identifiers “AAA” and “ZZZ”, the traveling line determination unit 106 includes the track identifier “R _a ” corresponding to the train identifier “AAA” and the train identifier “ZZZ”. The line identifier “R _z ” corresponding to “is acquired.

Then, the output unit 107, map the train position output device 1 of the display displayed on the map tiles MT _A, train image train identifier obtained is, the specified time period _(t A _{~t B)} An image (moving image) of the situation of moving on the track of the track identifier of the tile is displayed.

For example, the train determination unit 105 acquires train identifiers “AAA” and “ZZZ”, and the _first vehicle of the train at time t ₁ (t _A <t ₁ ) from the train operation information of the train identifier “AAA”. enters the map tiles MT _a, when exiting the map tiles MT _a at time _{t 2 (t 2 <t B} ), the output unit 107, similarly to the embodiment 1, as shown in FIG. 8, a train position output device on one of the display displayed map tiles MT _a, the image (FIG. 8 a train image GT _a of the train identifier "AAA" is moved on the line R1 of the line identifier _{R a,} image GT _a is line R1 Video that moves up).

The output processing of the train position creates an image GT _A train the image of the rectangular vehicle and n _a number linking number vehicles corresponding to train identifier "AAA" of the train information from the "n _a". The output unit 107 uses the train location corresponding to the train identifier "AAA" function delta (t), calculates the train position delta (t ₁₎ in the map tiles MT _A time t _1, on the map tiles MT _A The train image GT _A is arranged at the train position Δ (t ₁ ).

In this case, the train position delta (t ₁₎ is because it is the front side of the carriage positions PD _F of the leading vehicle of the train, the output unit 107, and the side of the carriage positions PD _R after the leading vehicle, each vehicle 2 eyes after the carriage positions PD _F, and PD _R calculated from the shape of the spacing and the line of the bogie spacing and the vehicle coupling, so that an image of each vehicle corresponding carriage position PD _F, is disposed in PD _R (FIG. 10, 14), the train image GT _A of the train identifier “AAA” is arranged.

The output unit 107, carriage position of each vehicle on line map tiles MT _A from the train information train information stored in the storage unit 103 the train identifier "AAA" reads the information of the bogie spacing and the vehicle coupling interval PD _F, calculates a PD _R.

Carriage positions PD F images of the respective vehicle _corresponds, to be placed in PD _R, since placing the train image GT _A of the train identifier "AAA", the length even when the shape of the line is curved The train image GT _A is arranged along the curve of the track.

The output unit 107 advances the time from t ₁ by a predetermined time interval Δt, and the train position Δ (t ₁ + k · δt) at each time (t ₁ + k · δt) (k = 1, 2,...). calculates, placing images GT _a train to train position on the map tiles _{MT a Δ (t 1 + k} · δt). Thus, the image moving train image GT _A of the train identifier "AAA" along the line R1 on the map tiles MT _A (video) is displayed.

In addition, the output unit 107, enters from the train operation information of the train identifier "ZZZ" in the map tile MT _A the train of the first vehicle is time _{t3 (t A <t 3)} , time t4 _(t 4 <t _B ) in the case of exit from the map tile MT _a, and the same process as the image GT _a train train identifier "AAA", on the same map tile MT _a, the train image GT _Z of the train identifier "ZZZ" (in FIG. 8, the image GT _Z is moving to move the upper line R2 on the lower side) image moving on the track R2 of the line identifier R _z is displayed.

When the location information of the output instruction received by the reception unit 104 is S station, for example, a map tile MT _B shown in FIG. 4 is read from the map information storage unit 101 as a map tile of the S station, and the train position It is displayed on the display of the output device 1. Again, train identifier "AAA" using map tiles MT _A described above, the train of the image _GT A of "ZZZ", GT _Z is line R1, similar to the output processing of the video showing the situation of travel on R2 Processing is performed.

In this output process, the image GT _A of the train with the train identifier “AAA” is output while the train stops at the “1” stop position information M of the home identifier “N _a1 ” of the S station while decelerating. Since the position function Δ (t) is created based on the actual operation plan of the train with the train identifier “AAA”, the map tile MT _B of the train image GT _A calculated by the train position function Δ (t). The amount of change in the upper position becomes smaller as the vehicle approaches the platform, thereby displaying a state in which the train image GT _A decelerates and stops at “1” in the stop position information M of the home identifier “N _z1 ”. It will be.

If how the train image GT _Z of the train identifier "ZZZ" stops "2" No. stop position information M of the home identifier S Station while decelerating "N _z1" is output is the same.

In addition, train identifier "AAA", The same applies to the state of the speed change when the train of image GT A of _"ZZZ", GT _Z is going to exit the map tile MT _B while accelerating starting from the home.

  As described above, according to the first embodiment, the user confirms one or more trains arriving at the station instructed to output at the time when the output is instructed in such a manner that the home where the station stops can be visually recognized on the map. can do. Since the user can visually grasp the operation status of the train at the station platform and the arrangement relationship of the facilities with respect to the stop position of the train on the map, it is possible to alleviate mistaking and congestion in the station premises.

  In the specific examples 1 and 2, map information in the map tile format is used as the map information, but map information other than the map tile format may be used.

  In specific examples 1 and 2, the operation information is stored in advance in the operation information storage unit 102. However, operation information necessary for processing is acquired from a railway company and stored in the operation information storage unit 102. May be.

  In the second specific example, a cubic Bezier curve is used as a function representing the shape of the track on the map tile. However, the function is not limited to this, and any function that can represent the shape of the track. For example, other functions may be used.

  Moreover, in the said specific example 2, although train position function (DELTA) (t) is created by spline interpolation, it is not limited to this and the movement position imitating the actual operation plan of a train can be calculated. Any other function may be used as long as it is a train position function.

  In the first embodiment, it goes without saying that two or more communication means existing in one apparatus may be physically realized by one medium.

  In the first embodiment, each process or each function may be realized by centralized processing by a single device or a single system, or distributed by a plurality of devices or a plurality of systems. It may be realized by being processed.

  In the first embodiment, each component may be configured by dedicated hardware, or a component that can be realized by software may be realized by executing a program. For example, each component can be realized by a program execution unit such as a CPU reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

  Moreover, the software which implement | achieves the train position output device 1 in the said Embodiment 1 is the following programs. That is, on a recording medium accessible by a computer, map information including a track and a platform of a station, operation information that is information on operation of one or more trains, and information on a train that identifies a track on which the train runs Train information having an identifier is stored, a train determination unit that determines one or more trains that are traveling in one place at one time using the operation information, and the train determination unit The one or more trains determined by the train determination unit using the map information and the one or more trains determined by the train determination unit using the train information are determined on the travel line. It is a program that functions as an output unit that outputs on a map in such a manner that the train travels on the track determined by the determination unit, and the output unit uses the train information at a station. Column There in a manner home stop can visually recognize, and outputs one or more trains the train determining unit has determined on the map, it is a program characterized by.

  Note that the program does not include at least processing that is performed only by hardware.

  The program may be executed by being downloaded from a server or the like, or a program recorded on a predetermined recording medium (for example, an optical disk such as a CD-ROM, a magnetic disk, a semiconductor memory, or the like) is read out. May be executed. Further, the program may be used as a program constituting a program product.

  Moreover, the computer which performs the said program may be single, and plural may be sufficient as it. That is, centralized processing may be performed, or distributed processing may be performed.

  FIG. 17 is a schematic diagram of a computer system 900 that executes the above-described program to realize the train position output device 1 and the like according to the first embodiment. The first embodiment can be realized by computer hardware and a computer program executed thereon.

  In FIG. 17, the computer system 900 includes a computer 901 including a CD-ROM drive (Compact Disk Read Only Memory) 905, a keyboard 902, a mouse 903, and a monitor 904.

  FIG. 18 is a diagram showing an internal configuration of the computer system 900. In FIG. 18, in addition to the CD-ROM drive 905, a computer 901 is connected to an MPU (Micro Processing Unit) 911, a ROM 912 for storing a program such as a boot-up program, and the MPU 911. A RAM 913 that temporarily stores and provides a temporary storage space, a hard disk 914 that stores application programs, system programs, and data, and a bus 915 that interconnects the MPU 911, the ROM 912, and the like are provided. The computer 901 may include a network card (not shown) that provides connection to a LAN, WAN, or the like.

  A program that causes the computer system 900 to execute the function of the train position output device 1 according to the first embodiment may be stored in the CD-ROM 921, inserted into the CD-ROM drive 905, and transferred to the hard disk 914. Instead, the program may be transmitted to the computer 901 via a network (not shown) and stored in the hard disk 914. The program is loaded into the RAM 913 when executed. The program may be loaded directly from the CD-ROM 921 or the network. Further, the program may be read into the computer system 900 via another recording medium (for example, a DVD) instead of the CD-ROM 921.

  The program does not necessarily include an operating system (OS) or a third-party program that causes the computer 901 to execute the function of the train position output device 1 according to the first embodiment. The program may include only a part of an instruction that calls an appropriate function or module in a controlled manner and obtains a desired result. How the computer system 900 operates is well known and will not be described in detail.

  The present invention is not limited to the above-described embodiments, and various modifications are possible, and it goes without saying that these are also included in the scope of the present invention.

  As described above, the train position output device according to the present invention has an effect that it is possible to visually grasp the operation state of the train at the station platform and the arrangement relationship of the facilities with respect to the stop position of the train on the map. It is useful as a train position output device.

DESCRIPTION OF SYMBOLS 1 Train position output device 101 Map information storage part 102 Operation information storage part 103 Train information storage part 104 Reception part 105 Train determination part 106 Running track determination part 107 Output part 900 Computer system 901 Computer 902 Keyboard 903 Mouse 904 Monitor 914 Hard disk 915 Bus

Claims (9)

A map information storage unit capable of storing map information including the tracks and the platform of the station;
An operation information storage unit capable of storing operation information which is information relating to operation of one or more trains;
Train information storage unit that can store train information that has information about trains and has a track identifier that identifies the track on which the train runs,
A train determination unit that determines one or more trains traveling in one place at one time using the operation information;
A track determining unit that determines a track on which each of the one or more trains determined by the train determining unit runs using the train information;
An output unit that outputs a map in such a manner that one or more trains determined by the train determination unit using the map information travel on the track determined by the travel line determination unit. Equipped,
The output unit is
A train position output device that outputs one or more trains determined by the train determination unit on a map in such a manner that a home where a train stops at a station can be visually recognized using the train information. The train information is
It has one or more stop position information indicating the stop position of the train at the station platform,
The output unit is
2. The train according to claim 1, wherein when the train stops at a platform of the station, the train is output on a map in a manner in which the stop position at the platform can be visually recognized using stop position information corresponding to the train. Position output device. The train information is
Has length information about the length of the train,
The output unit is
The train position output device according to claim 1 or 2, wherein a train having a length corresponding to the length information corresponding to the train is output on a map. The output unit is
When visually outputting the travel of a train, after leaving one station, gradually increase the moving speed of the train, and any point between the one station and the next station The train position according to any one of claims 1 to 3, wherein the train is output on a map in such a manner that the movement speed of the train is gradually reduced and the train arrives at the next station. Output device. The operation information is
The train identifier which identifies a train for every 1 or more train, and 2 or more operation position time information which is a set of the positional information and time information regarding the position of a train to any one of Claims 1-4 The described train position output device. The map information is
Divided into two or more meshes,
The operation position time information is
The train position output device according to claim 5, wherein the train position output device is a set of a mesh identifier for identifying a traveling mesh and time information. The operation information storage unit
The train position output device according to claim 5 or 6, wherein operation information is held in advance. On the recording medium,
Map information including the tracks and the platform of the station, operation information that is information related to the operation of one or more trains, train information, and train information having a track identifier that identifies the track on which the train runs are stored. ,
A train position output method realized by a train determination unit, a travel line determination unit, and an output unit,
A train determination step in which the train determination unit determines one or more trains traveling in one place at one time using the operation information;
A travel line determination step for determining, using the train information, a track on which the one or more trains determined by the train determination unit are traveled by the travel line unit,
Using the map information, the output unit outputs on the map one or more trains determined by the train determination unit in such a manner that the train travels on the track determined by the travel line determination unit. Then, using the train information, a train position output step for outputting one or more trains determined by the train determination unit on a map in a mode in which a home where the train stops at a station can be visually recognized,
A train position output method comprising: A computer-accessible recording medium
Map information including the tracks and the platform of the station, operation information that is information related to the operation of one or more trains, train information, and train information having a track identifier that identifies the track on which the train runs are stored. ,
Computer
A train determination unit that determines one or more trains traveling in one place at one time using the operation information;
A track determining unit that determines a track on which each of the one or more trains determined by the train determining unit runs using the train information;
Using the map information, one or more trains determined by the train determination unit are output on the map in such a manner that the train travels on the track determined by the travel line determination unit; A program that allows
The output unit uses the train information to output one or more trains determined by the train determination unit on a map in a mode in which a platform where the train stops at a station can be visually recognized. Program to do.