JP2009012583A - Wireless data communication simulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a wireless data communication simulator which includes a plurality of zones for wireless data communication and verifies the normality of wireless data communication in a mobile radio system for transmitting information data between a ground station and mobile station. <P>SOLUTION: The device is equipped with an input part in which selection information for selecting a simulation condition is inputted from the outside, a simulation condition selecting part for selecting a simulation condition on the basis of the selected information from a plurality of simulation conditions, a train operation condition acquisition part for acquiring operation condition information which is information on an operation condition of a train taken as a simulation object on the basis of the simulation condition, a storage part for storing at least either a program or data on simulation, and a simulation executing part for executing simulation of wireless data communication between a ground station and mobile station through the utilization of simulation conditions and operation conditions of a train. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wireless data communication simulation device, and simulates a mobile wireless system that transmits data information to one of a plurality of mobile devices (for example, trains) that are moving from a ground station. The present invention relates to a wireless data communication simulation apparatus.

  Conventionally, various types of information communication such as operation notifications between trains and the ground have been performed by voice communication using analog radio, although packet communication data communication has been used in part. It was.

  However, in recent years, mobile radio systems capable of transmitting information data with a simple device configuration have been proposed and are being developed for practical use. For example, the ground station receives and selects the central device that inputs the information of the driving notification ticket, the command console device that generates the voice communication signal for performing the voice communication, the information of the driving notification ticket and the voice communication signal. And a base station for receiving the output of the central control device and controlling a radio line to perform radio communication. And the onboard station displays and stores the predetermined information when the wireless device for performing wireless communication with the base station and the information from the wireless device is the predetermined information, and the input information There has been proposed a system including a terminal device that provides a wireless device. A wireless base station is provided with a plurality of base stations that cover different service area zones. Each base station calls to the onboard station and updates with the base station that has received a response from the onboard station. (For example, refer to Patent Document 1).

JP 2004-153511 A ([0074] to [0078], FIG. 9)

  However, when using the zone method as in the above-described conventional technology, in wireless data communication when the on-board station is moving, the wireless communication is interrupted at the zone breaks, and no information reaches the on-board station from the ground station. Conversely, there is a concern that communication troubles such as information not reaching from the onboard station to the ground station may occur. Such communication trouble becomes a big problem in terms of safe traveling of the train. In addition, for example, due to the necessity of transmitting information only to a specific area, the route is divided into predetermined zones, and the train can communicate only with the ground stations in the zone of the traveling route division. That is, since the communication frequency is different for each route section zone, retransmission processing is necessary to perform communication across the zones.

  Therefore, in order to prevent such a communication trouble from occurring, it is necessary to verify whether or not the wireless data communication is normally performed when the zone is crossed (switched), and thus a prior simulation is required. . However, at present, a technology capable of performing such verification has not yet been established.

  The present invention has been made in view of the above, and includes a plurality of zones for wireless data communication, and normality of wireless data communication in a mobile wireless system that transmits information data between a ground station and a mobile station An object of the present invention is to obtain a wireless data communication simulation apparatus for verifying the above.

  In order to solve the above-described problems and achieve the object, a wireless data communication simulation apparatus according to the present invention divides a railway route so as to include at least one wireless communication base station provided on the ground. A wireless data communication simulation device for simulating the normality of wireless data communication between a mobile station mounted on a train traveling across a zone of a segment and a base station in the zone of the route segment on which the train is traveling In addition, an input unit to which selection information for selecting a simulation condition, which is a condition for performing a simulation, is input from the outside, and a plurality of simulation conditions are held in advance, and 1 based on the selection information from the plurality of simulation conditions. Simulation condition selection section for selecting one or more simulation conditions, and simulation A train operation condition acquisition unit that acquires operation condition information that is information related to the operation condition of the train to be simulated based on the simulation condition selected by the item selection unit, and a storage unit that stores at least one of a program and data related to the simulation And a simulation execution for executing a simulation of wireless data communication between the ground station and the mobile station using the simulation condition selected by the simulation condition selection unit 13 and the train operation condition acquired by the train operation condition acquisition unit. And a section.

  According to the present invention, a plurality of zones for wireless data communication are provided, and the normality of wireless data communication is achieved in advance by performing data communication simulation when transmitting information data between a ground station and a mobile station. In particular, there is an effect that the normality of the wireless data communication can be verified by performing a simulation when the wireless zone is switched.

  Embodiments of a wireless data communication simulation apparatus according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited to the following description, In the range which does not deviate from the summary of this invention, it can change suitably.

Embodiment A wireless data communication simulation apparatus according to the present embodiment divides a railway route so as to include at least one wireless communication base station provided on the ground, and trains that travel across zones of the route division 1 is a wireless data communication simulation device that simulates the normality of wireless data communication between a mobile station mounted on the base station and a base station in the zone of the route segment on which the train is traveling. FIG. 1 is a diagram showing a schematic configuration of a wireless data communication simulation apparatus 1 according to an embodiment of the present invention. As shown in FIG. 1, the wireless data communication simulation apparatus 1 according to the present embodiment includes an input unit 11, a simulation condition selection unit 13, a train operation condition acquisition unit 15, a storage unit 17, and a simulation execution unit 19. And a display unit 21.

  The simulation condition selection unit 13 holds in advance a plurality of simulation conditions, which are conditions for performing a simulation, and selection information (which of the simulation conditions is input) input from the outside (such as an operator) via the input unit 11 The simulation condition is selected on the basis of information indicating whether or not to perform simulation. The input unit 11 may receive selection information from the outside via a recording medium or a network. The simulation condition selection unit 13 selects and specifies one or more conditions among, for example, a plurality of train formations, travel sections, and operation times held as simulation conditions.

  That is, in this wireless data communication simulation apparatus 1, only a specific train is selected from train trains, only a specific train train is selected, or only a specific train train time is selected. Simulation can be performed.

  Furthermore, in this wireless data communication simulation apparatus 1, it is also possible to perform simulation by selecting any combination of two or more conditions among train formation, travel section, and operation time. For example, a condition is selected by a combination of a specific travel section of a specific train, a specific travel time of a specific train, a specific travel time of a specific travel section, a specific travel time of a travel section of a specific train, etc. Simulation.

  Further, the simulation condition selection unit 13 may be able to select which type of diamond, that is, any of the three types of schedules, plan diamond, actual diamond, and implementation diamond, based on the input selection information.

  Moreover, the simulation condition selection unit 13 selects the type of information (simulation target information) to be simulated for normality of wireless data communication based on the selection information. The simulation target information includes column number information (train number, wireless zone information, etc.), operation arrangement notification information, operation regulation notification information, operation information (delay information, transfer information, etc.), failure information, and the like. The simulation condition selection unit 13 transmits the selected simulation condition to the train operation condition acquisition unit 15, the storage unit 17, and the simulation execution unit 19.

  The train operation condition acquisition unit 15 acquires information (operation condition information) regarding the operation condition of the train to be simulated based on the simulation condition selected by the simulation condition selection unit 13. Train operating conditions include train number, diamond, and wireless zone information (including wireless zone change point information). The wireless zone change point is a switching point between wireless zones adjacent to the wireless zone. The wireless zone is a (route) section for wireless communication in which radio waves can be communicated from a ground station base station, which will be described later, to a mobile station (onboard station).

  Among these, the train number and the diagram can be acquired from, for example, the operation management system of the central command room that manages the operation state of the train. In addition, as a diagram, three types of diagrams, a plan diagram, an actual diagram, and an implementation diagram can be acquired. Wireless zone information (including wireless zone change point information) can be obtained from a database in the central command room. These data may be stored in advance in the storage unit 17 inside the simulation apparatus and acquired from the storage unit 17.

  Further, the train operation condition acquisition unit 15 creates a diagram as shown in FIG. 2 from the acquired diagram and transmits it to the storage unit 17 and the simulation execution unit 19 together with the operation conditions. In FIG. 2, as an example, a diagram of trains of trains 1 to 5 in a time zone from 8:00 to 11:00 between station 1 and station 8 is shown.

  The storage unit 17 stores various programs such as an application program for executing a simulation and various data. In addition, the storage unit 17 stores information related to the simulation transmitted from the input unit 11, the simulation condition selection unit 13, the train operation condition acquisition unit 15, and the simulation execution unit 19.

  The simulation execution unit 19 uses the simulation conditions selected by the simulation condition selection unit 13, the train operation conditions acquired by the train operation condition acquisition unit 15, and various information stored in the storage unit 17 if necessary. Execute a simulation of wireless data communication under specified conditions. Then, the simulation executing unit 19 outputs the simulation result to the display unit 21 as simulation result information.

  The display unit 21 receives and displays various information related to the simulation and simulation result information output from the simulation execution unit 19. FIG. 3 shows an example of the simulation operation screen. The simulation operation screen shown in FIG. 3 has a standing line display area D1, a monitor screen display area D2, and a communication log display area D3.

  The standing line display area D1 is a display area that can display a train number, a train number, a radio zone, a line section, a rear station, and the like for each train. The monitor screen display area D2 is a display area equivalent to the content actually displayed on the display device of the onboard station, and is a display area where the content to be transmitted to the onboard station can be displayed. The communication log display area D3 is a display area that can display a connection state with each server unit of the mobile radio system and a message transmission / reception state in the simulation.

  Here, a mobile radio system that is a target of simulation performed by the radio data communication simulation apparatus 1 according to the present embodiment will be described with reference to FIGS. 4 and 5. FIG. 4 and 5 are diagrams for explaining a mobile radio system that is a simulation target of the radio data communication simulation apparatus 1 according to the embodiment.

  This mobile radio system is a mobile radio system capable of radio data communication between a ground station 100 provided in a central command room for train operation and an on-board station 200 provided in a moving train, for example. This mobile radio system has an A zone 117A and a B zone 117B as zones of route division for radio communication that can communicate by receiving radio waves from the base station of the ground station 100, for example. Here, for convenience of explanation, the A zone 117A and the B zone 117B are described, but the operation of the operation has a larger number of zones.

  The ground station 100 includes a train information collection server unit 101, a notification server unit 103, a broadcast communication server unit 105, a vehicle failure management server unit 107, a terminal device 109, a display device 111, and a ground side wireless communication unit. 113, A zone base station 115A, and B zone base station 115B.

  The train information collection server unit 101, the notification server unit 103, the broadcast communication server unit 105, the vehicle failure management server unit 107, the terminal device 109, and the ground side wireless communication unit 113 are connected to each other by wires so that they can communicate with each other. . Further, the ground side wireless communication unit 113 and the A zone base station 115A, and the ground side wireless communication unit 113 and the B zone base station 115B are connected to each other so as to be capable of mutual communication.

  The onboard station 200 is mounted on each train, and includes an on-board side radio communication unit 201, an onboard station control unit 203, and a display unit 205 as shown in FIG. FIG. 5 is a diagram illustrating an example of the configuration of the on-board station 200.

  The on-board station 200 (the vehicle upper side radio communication unit 201) can perform data and voice communication wirelessly with the A zone base station 115A of the ground station 100 when the train is located in the A zone 117A. The onboard station 200 (the vehicle upper side radio communication unit 201) cannot wirelessly communicate data and voice with the B zone base station 117A of the ground station 100 when the train is located in the A zone 115A.

  On the other hand, when the train is located in the B zone 117B, the onboard station 200 (the vehicle upper side wireless communication unit 201) can perform data and voice communication wirelessly with the B zone base station 115B of the ground station. The onboard station 200 (the vehicle upper side radio communication unit 201) cannot wirelessly communicate data and voice with the A zone base station 115A of the ground station 100 when the train is located in the B zone 117A.

  The train information collection server unit 101 receives and stores train number information (train number, wireless zone information, etc.) from the onboard station 200, and also notifies the notification server unit 103, the broadcast communication server unit 105, and the vehicle failure. Delivered to each server unit of the management server unit 107. The train number is a unique identification number of the train. The wireless zone information is information on a zone where the train is currently located (for example, A zone). Further, the train information collection server unit 101 starts a polling request to the onboard station 200 with the reception of the train number information as a trigger, and receives position information from the onboard station 200 as a response (current station, kilometer, etc.) ) And is distributed to each of the notification server unit 103, the broadcast communication server unit 105, and the vehicle failure management server unit 107.

  The notification server unit 103 transmits driving arrangement notification information and driving regulation notification information input from the outside (for example, by a commander of the central control room or an information server unit) to a predetermined onboard station 200. The broadcast communication server unit 105 transmits operation information, delay information, transfer information, and the like input from the outside (for example, by a commander in the central control room or an information server unit) to a predetermined on-board station 200.

  The vehicle failure management server unit 107 stores and manages failure information transmitted from the onboard station 200 when a failure occurs in the train, and displays the information on the display device 111 connected to the terminal device 109 of the ground station 100. . Further, in response to a request from the terminal device 109 of the ground station 100, the same screen as the display unit 205 of the onboard station 200 is displayed on the display device 111 connected to the terminal device 109 of the ground station 100.

  The ground side wireless communication unit 113 selects a transmission destination zone (A zone 117A or B zone 117B) for each information with respect to information transmitted from each server unit to the onboard station 200, and sets each of the selected zones. Send to the corresponding zone base station by wire. When the zone where the train is located changes (for example, from A zone 117A to B zone 117B), ground-side wireless communication unit 113 changes the information transmission destination zone. Further, when the zone where the train is located changes during data transmission, the data is retransmitted to the zone base station corresponding to the zone after the change. The ground side wireless communication unit 113 distributes information transmitted from the onboard station 200 to destinations and transmits the information to a predetermined destination.

  The A-zone base station 115A is a base station for controlling the radio line and performing radio communication with the on-board station 200 located in the A zone 117A. As the A zone base station 115A, there are four A zone bases including an A zone base station 115A-1, an A zone base station 115A-2, an A zone base station 115A-3, and an A zone base station 115A-4. Have a station.

  Further, the B zone base station 115B is a base station for controlling a radio line and performing radio communication with the on-board station 200 located in the B zone 117B. As B zone base station 115B, it has two B zone base stations, B zone base station 115B-1, and B zone base station 115B-2. Here, a case where there are four A-zone base stations and two B-zone base stations will be described. However, the number of zone base stations is not limited to this, and various factors such as the size of the zone and communication conditions may be used. It can be changed as appropriate based on the conditions.

  Next, simulation processing of the wireless data communication simulation apparatus 1 according to the present embodiment will be described with reference to FIG. FIG. 6 is a flowchart for explaining the overall flow in the simulation processing of the wireless data communication simulation apparatus 1 according to the present embodiment.

  First, selection information for selecting a simulation condition, which is a condition for performing a simulation, is input from the input unit 11 by an operator, for example. When receiving the selection information (step S110), the simulation condition selection unit 13 selects a simulation condition based on the selection information (step S120).

  The simulation condition selection unit 13 selects, for example, one or more conditions among train formation, travel section, and time for which simulation is performed based on the selection information. Further, the simulation condition selection unit 13 selects a diamond type (plan diamond, actual diamond, execution diamond) based on the selection information. Moreover, the simulation condition selection unit 13 selects the type of information (simulation target information) to be simulated for normality of wireless data communication based on the selection information.

  The simulation condition selection unit 13 transmits the selected simulation condition to the train operation condition acquisition unit 15, the storage unit 17, and the simulation execution unit 19. Here, a case will be described in which, for example, a specific composition, traveling section, and time are specified as simulation conditions, and a simulation of wireless data communication of column number information is executed.

  Next, when the train operation condition acquisition unit 15 receives the simulation condition from the simulation condition selection unit 13, based on the simulation condition, the train number, the diagram, Wireless zone information (including wireless zone change point information) and the like are acquired (step S130). Among these, the train number and the diagram are acquired from, for example, the operation management system of the central command room that manages the operation state of the train. The wireless zone information and (including the wireless zone change point information) are acquired from, for example, a database in the central command room.

  Then, the train operation condition acquisition unit 15 creates a diagram as shown in FIG. 2 from the acquired diagram and transmits it to the storage unit 17 and the simulation execution unit 19 together with the operation conditions.

  Based on the simulation condition selected by the simulation condition selection unit 13 and the train operation condition acquired by the train operation condition acquisition unit 15, the simulation execution unit 19 simulates wireless data communication of column number information under the selected condition. Is executed (step S140). Then, the simulation executing unit 19 outputs the simulation result to the display unit 21 as simulation result information. The display unit 21 displays the simulation result information output from the simulation execution unit 19 (step S150).

  Next, the simulation process in the simulation execution unit 19 in the simulation process of the wireless data communication simulation apparatus 1 as described above will be described. The simulation execution unit 19 performs simulation by executing the above-described process in the mobile radio system in a simulated manner. Here, as shown in FIG. 4, the case where a train moves from A zone 117A to B zone 117B is demonstrated.

  First, the case of simulating the normality of wireless data communication of wireless zone change information will be described with reference to FIG. FIG. 7 is a flowchart for explaining processing in the case where the simulation execution unit 19 of the wireless data communication simulation apparatus 1 according to the present embodiment simulates the normality of wireless data communication of wireless zone change information.

  When the mobile radio system is turned on at the on-board station 200 of the train located in the area A-1 in the A zone 117A, the on-board station control unit 203 of the on-board station 200 passes through the on-board radio communication unit 201. The column number information (train number, wireless zone information, etc.) is transmitted to the train information collection server unit 101 of the ground station 100 (step S210). Here, information “A zone” is transmitted as the wireless zone information.

  The column number information transmitted includes A zone base station 115A-1, A zone base station 115A-2, A zone base station 115A-3, and A zone base station 115A-4 corresponding to the current train position. It is received by the train information collection server unit 101 via the zone base station 115A-1, the ground side wireless communication unit 113, and the transmission path W (step S220).

  When receiving the train number information, the train information collection server unit 101 distributes the train number information to each of the notification server unit 103, the broadcast communication server unit 105, and the vehicle failure management server unit 107 (step S230). In addition, the train information collection server unit 101 starts a polling request to the onboard station 200 with the reception of the train number information as a trigger, and receives position information (current station, kilometer, etc.) from the onboard station 200 as a polling response. The information is received and stored, and is distributed to each server unit of the notification server unit 103, the broadcast communication server unit 105, and the vehicle failure management server unit 107.

  Here, when the train moves from the area A-4 of the A zone 117A to the area B-1 of the B zone 117B, the onboard station control unit 203 of the onboard station 200 transmits the wireless zone via the onboard radio communication unit 201. Is sent to the train information collection server unit 101 of the ground station 100 (step S240). Here, as the radio zone change information, information indicating that the radio zone has been changed from the A zone to the B zone is transmitted.

  The transmitted wireless zone change information is collected from the train information via the B zone base station 115B-1, the ground side wireless communication unit 113, and the transmission path W when the wireless data communication is normally performed. Received by the server unit 101. When the train information collection server unit 101 receives the wireless zone change information, the train information collection server unit 101 transmits a wireless zone change information response to the onboard station 200, and also transmits the wireless zone change information notification server unit 103. It is distributed to each server unit of the information communication server unit 105 and the vehicle failure management server unit 107.

  The onboard station 200 determines whether a wireless zone change information response has been received (step S250). When it is determined that it has been received (Yes at step S250), the simulation execution unit 19 determines that the wireless data communication between the ground station 100 and the onboard station 200 has been normally performed even if the wireless zone is switched from the A zone to the B zone. Judgment is made, “normal communication” is displayed as a normal end message on the display unit 21, and the simulation is ended (step S260).

  If it is determined that the data is not received (No at step S250), the simulation executing unit 19 determines that wireless data communication is not normally performed by switching from the A zone to the B zone, and an error message is displayed on the display unit 21. "Communication error" is displayed and the simulation is terminated (step S270).

  Next, the case of simulating the normality of wireless data communication of notification transmission information will be described with reference to FIG. FIG. 8 is a flowchart for explaining processing when the normality of wireless data communication of notification transmission information is simulated in the simulation execution unit 19 of the wireless data communication simulation apparatus according to the present embodiment. Here, transmission of driving arrangement notification information will be described as an example of notification transmission information. Also in this case, as shown in FIGS. 1-4, the case where a train moves from A zone 117A to B zone 117B is demonstrated.

  In the area A-1 in the A zone 117A, the onboard station control unit 203 of the onboard station of the train passes the train number information (train number, wireless zone information, etc.) in the A zone via the vehicle upper side radio communication unit 201 on the ground. It transmits to the train information collection server unit 101 of the station (step S300). Here, information “A zone” is transmitted as the wireless zone information.

  The transmitted column number information (A zone) is the current train position among A zone base station 115A-1, A zone base station 115A-2, A zone base station 115A-3, and A zone base station 115A-4. Is received by the train information collection server unit 101 via the A-zone base station 115A-1 and the ground side wireless communication unit 113 and the transmission path.

  Upon receiving the column number information (A zone), the train information collection server unit 101 distributes the column number information to the notification server unit 103 (step S310). Upon receiving the column number information (A zone), the notification server unit 103 transmits the driving arrangement notification information (A zone) for the A zone to the onboard station located in the A zone via the ground side wireless communication unit 113. (Step S320).

  In actual train operation, there may be no operation arrangement notification information to be transmitted to the current train position, but here, operation arrangement notification information to be transmitted to the current train position. There shall be. Further, the ground side wireless communication unit 113 selects the destination (A zone or B zone) of the driving arrangement notification information, and transmits the driving arrangement notification information (A zone) to the A zone base station 115A.

  Upon receiving the driving arrangement notification information (A zone), the onboard station transmits delivery confirmation information to the notification server unit 103 via the vehicle upper side wireless communication unit 201 (step S330). The transmitted delivery confirmation information is received by the notification server unit 103 via the A-zone base station 115A, the ground side wireless communication unit 113 and the transmission path.

  When the train moves from the area A-4 of the A zone 117A to the area B-1 of the B zone 117B, the onboard station control unit 203 of the onboard station of the train sets the column number information ( Train number, radio zone information, etc.) are transmitted to the train information collection server unit 101 of the ground station via the vehicle upper side radio communication unit 201 (step S340). Here, information “B zone” is transmitted as the wireless zone information. The transmitted column number information (B zone) is received by the train information collection server unit 101 via the B zone base station 115B-1, the ground side wireless communication unit 113, and the transmission path.

  Upon receiving the column number information (B zone), the train information collection server unit 101 delivers the column number information (B zone) to the notification server unit 103 (step S350). Upon receiving the column number information (B zone), the notification server unit 103 transmits the driving arrangement notification information (B zone) for the B zone to the on-board station located in the B zone via the ground side wireless communication unit 113. (Step S360). Here, the ground side wireless communication unit 113 selects the destination (A zone or B zone) of the driving arrangement notification information, and transmits the driving arrangement notification information (B zone) to the B zone base station 115B. If the train enters the B zone while the operation arrangement notification information (A zone) is being transmitted to the onboard station, the same information that was being transmitted in the A zone is sent to the B zone train. resend.

  The on-board station transmits the delivery confirmation information to the notification server unit 103 via the vehicle-side wireless communication unit 201 when receiving the driving arrangement notification information (B zone). The notification server unit 103 determines whether or not delivery confirmation information has been received (step S370). When it is determined that the notification server unit 103 has received the request (Yes at step S370), the simulation execution unit 19 performs driving arrangement notification information between the ground station and the onboard station even when the wireless zone is switched from the A zone to the B zone. It is determined that the wireless data communication is normally performed, and “normal communication” is displayed on the display unit 21 as a normal end message, and the simulation is terminated (step S380).

  When it is determined that the notification server unit 103 has not received the notification (No at Step S370), the simulation execution unit 19 performs normal wireless data communication of the driving arrangement notification information by switching from the A zone to the B zone. It is determined that it is not, “communication error” is displayed as an error message on the display unit 21, and the simulation is terminated (step S390).

  Next, the case of simulating normality of wireless data communication of operation information will be described with reference to FIG. FIG. 9 is a flowchart for explaining processing in the case of simulating normality of wireless data communication of operation information in the simulation execution unit 19 of the wireless data communication simulation apparatus according to the present embodiment. Also in this case, as shown in FIGS. 1-4, the case where a train moves from A zone 117A to B zone 117B is demonstrated.

  In the area A-1 in the A zone 117A, the onboard station control unit 203 of the onboard station of the train passes the train number information (train number, wireless zone information, etc.) in the A zone via the vehicle upper side radio communication unit 201 on the ground. It transmits to the train information collection server unit 101 of the station (step S400). Here, information “A zone” is transmitted as the wireless zone information.

  The transmitted column number information (A zone) is the current train position among A zone base station 115A-1, A zone base station 115A-2, A zone base station 115A-3, and A zone base station 115A-4. Is received by the train information collection server unit 101 via the A-zone base station 115A-1 corresponding to, the ground side wireless communication unit 113 and the transmission path W.

  Upon receiving the column number information (A zone), the train information collection server unit 101 distributes the column number information to the broadcast communication server unit 105 (step S410). Upon receiving the column number information (A zone), the broadcast communication server unit 105 transmits the operation information (A zone) for the A zone to the onboard station located in the A zone via the ground side wireless communication unit 113. (Step S420).

  In actual train operation, there may be no operation information to be transmitted to the current train position, but here it is assumed that there is operation information to be transmitted to the current train position. To do. Further, the ground side wireless communication unit 113 selects the destination (A zone or B zone) of the operation information, and transmits the operation information (A zone) to the A zone base station 115A.

  Upon receiving the operation information (A zone), the onboard station transmits reception confirmation information to the notification server unit 103 via the vehicle upper side wireless communication unit 201 (step S430). The transmitted reception confirmation information is received by the notification server unit 103 via the A-zone base station 115A, the ground side wireless communication unit 113 and the transmission path W.

  When the train moves from the area A-4 of the A zone 117A to the area B-1 of the B zone 117B, the onboard station control unit 203 of the onboard station of the train sets the column number information ( Train number, radio zone information, etc.) are transmitted to the train information collection server unit 101 of the ground station via the vehicle upper side radio communication unit 201 (step S440). Here, information “B zone” is transmitted as the wireless zone information. The transmitted column number information (B zone) is received by the train information collection server unit 101 via the B zone base station 115B-1, the ground side wireless communication unit 113, and the transmission path W.

  Upon receiving the column number information (B zone), the train information collection server unit 101 delivers the column number information (B zone) to the broadcast communication server unit 105 (step S450). Upon receiving the column number information (B zone), the broadcast communication server unit 105 transmits the operation information (B zone) for the B zone to the onboard station located in the B zone via the ground side wireless communication unit 113. (Step S460). Here, the ground side wireless communication unit 113 selects the destination (A zone or B zone) of the operation information, and transmits the operation information (B zone) to the B zone base station 115B.

  When the on-board station receives the operation information (B zone), the on-board station transmits the reception confirmation information to the broadcast communication server unit 105 via the vehicle upper side radio communication unit 201. The broadcast server 105 determines whether reception confirmation information has been received (step S470). When it is determined that the broadcast communication server unit 105 has received it (Yes at Step S470), the simulation execution unit 19 operates information between the ground station and the onboard station even if the wireless zone is switched from the A zone to the B zone. It is determined that the wireless data communication is normally performed, “normal communication” is displayed as a normal end message on the display unit 21, and the simulation is terminated (step S480).

  If the broadcast communication server unit 105 determines that the broadcast information is not received (No at step S470), the simulation execution unit 19 performs normal wireless data communication of operation information by switching from the A zone to the B zone. It is determined that it is not, “communication error” is displayed as an error message on the display unit 21, and the simulation is terminated (step S490).

  Next, the case of simulating the normality of wireless data communication of vehicle failure information will be described with reference to FIG. FIG. 10 is a flowchart for explaining processing when simulating the normality of failure information wireless data communication in the simulation execution unit 19 of the wireless data communication simulation device according to the present embodiment. Also in this case, as shown in FIGS. 1-4, the case where a train moves from A zone 117A to B zone 117B is demonstrated.

  In the area A-1 in the A zone 117A, the onboard station control unit 203 of the onboard station of the train passes the train number information (train number, wireless zone information, etc.) in the A zone via the vehicle upper side radio communication unit 201 on the ground. It transmits to the train information collection server unit 101 of the station (step S500). Here, information “A zone” is transmitted as the wireless zone information.

  The transmitted column number information (A zone) is the current train position among A zone base station 115A-1, A zone base station 115A-2, A zone base station 115A-3, and A zone base station 115A-4. Is received by the train information collection server unit 101 via the A-zone base station 115A-1 and the ground side wireless communication unit 113 and the transmission path. Upon receiving the column number information (A zone), the train information collection server unit 101 distributes the column number information to the vehicle failure management server unit 107 (step S510).

  Here, when a failure occurs in the vehicle in the A zone 117A, the on-board station control unit 203 of the on-board station of the train transmits the failure information (A zone) in the A zone via the on-board wireless communication unit 201. It transmits to the vehicle failure management server unit 107 (step S520). Upon receiving the failure information (A zone), the vehicle failure management server unit 107 transmits a delivery confirmation to the on-board station located in the A zone via the ground side wireless communication unit 113 (step S530). Further, the ground side wireless communication unit 113 selects a delivery confirmation destination (A zone or B zone) and transmits the delivery confirmation to the A zone base station 115A.

  When the train has moved from the area A-4 in the A zone 117A to the area B-1 in the B zone 117B in a state in which the vehicle failure continues, the onboard station control unit 203 of the onboard station of the train displays the change information of the radio zone. At the same time, the train number information (B zone) in the B zone is transmitted to the train information collection server unit 101 of the ground station via the vehicle upper side radio communication unit 201 (step S540). Here, information “B zone” is transmitted as the wireless zone information.

  The transmitted column number information (B zone) is received by the train information collection server unit 101 via the B zone base station 115B-1, the ground side wireless communication unit 113, and the transmission path. Upon receiving the column number information (B zone), the train information collection server unit 101 distributes the column number information (B zone) to the vehicle failure management server unit 107 (step S550).

  In addition, since the vehicle failure continues, the onboard station control unit 203 of the onboard station of the train provides the failure information (B zone) in the B zone via the onboard radio communication unit 201 to manage the vehicle failure of the ground station. The data is transmitted to the server unit 107 (step S560). When receiving the failure information (B zone), the vehicle failure management server unit 107 transmits delivery confirmation information for the B zone to the onboard station located in the B zone via the ground side wireless communication unit 113.

  The on-board station determines whether or not the delivery confirmation information has been received (step S570). If it is determined that the signal has been received by the on-board station (Yes at step S570), the simulation execution unit 19 performs failure information radio data between the ground station and the on-board station even if the radio zone is switched from the A zone to the B zone. It is determined that the communication has been normally performed, “normal communication” is displayed as a normal end message on the display unit 21, and the simulation is terminated (step S580).

  If it is determined that the onboard station has not received the signal (No at Step S570), the simulation executing unit 19 determines that the wireless data communication of the failure information is not normally performed by switching from the A zone to the B zone. Judgment is made, “communication error” is displayed as an error message on the display unit 21, and the simulation is terminated (step S590).

  As described above, the wireless data communication simulation apparatus 1 according to the present embodiment includes a plurality of zones for wireless data communication, and is used in a mobile wireless system that transmits information data between a ground station and an on-board station. Data communication simulation can be performed to verify the normality of wireless data communication. In particular, it is possible to verify the normality of wireless data communication by performing a simulation when the wireless zone is switched.

  Therefore, according to the wireless data communication simulation device 1 according to the present embodiment, it is possible to verify the normality of wireless data communication between the ground station and the on-board station, and in particular, the wireless zone is switched. It is possible to reliably and efficiently verify that the retransmission processing or the like is correctly performed.

  Moreover, in the wireless data communication simulation apparatus 1 according to the present embodiment, only a specific train among train trains, only a specific train train, or a specific train train time. Only can be selected and simulated.

  And in this wireless data communication simulation apparatus 1, it is possible to perform simulation by selecting a combination of two or more specific conditions among train formation, travel section, and operation time. For example, a condition is selected by a combination of a specific travel section of a specific train, a specific travel time of a specific train, a specific travel time of a specific travel section, a specific travel time of a travel section of a specific train, etc. Simulation.

  Furthermore, in this wireless data communication simulation apparatus 1, it is possible to perform simulation by selecting a desired diamond from three types of schedules, a planned schedule, an actual schedule, and an implementation schedule.

  That is, in the wireless data communication simulation apparatus 1 according to the present embodiment, a desired condition can be selected from a plurality of simulation conditions, and simulation can be performed efficiently and in a short time. A high degree of simulation can be performed.

  In addition, in the above, although the form which acquires the operation condition of the train which simulates based on the simulation condition selected in the simulation condition selection part 13 was demonstrated, the form which selects a simulation condition from the operation condition of the train prepared beforehand It is also possible. In this case, for example, the train operation condition acquisition unit 15 displays a diagram as shown in FIG. 2, which is prepared by acquiring the operation conditions of a train in an arbitrary range in advance, and the operator displays the diagram as shown in FIG. For example, a simulation condition can be selected from the figure.

  As described above, the wireless data communication simulation apparatus according to the present invention has a plurality of zones for wireless data communication, and verifies the normality of wireless data communication for transmitting information data between a ground station and a mobile station. Useful when you want.

It is a figure which shows schematic structure of the radio | wireless data communication simulation apparatus concerning embodiment of this invention. It is the figure which showed the diagram in the time zone from 8:00 to 11:00 between the stations 1-8 of the train of the organization 1 to the organization 5 as an example of the diagram in embodiment of this invention. It is a figure which shows an example of the simulation operation screen of the radio | wireless data communication simulation apparatus concerning embodiment of this invention. It is a figure for demonstrating the mobile radio system used as the simulation object of the radio | wireless data communication simulation apparatus concerning embodiment of this invention. It is a figure for demonstrating the mobile radio system used as the simulation object of the radio | wireless data communication simulation apparatus concerning embodiment of this invention. It is a flowchart for demonstrating the whole flow in the simulation process of the radio | wireless data communication simulation apparatus concerning embodiment of this invention. It is a flowchart for demonstrating the process in the case of simulating the normality of radio | wireless data communication with the radio | wireless data communication simulation apparatus concerning embodiment of this invention. It is a flowchart for demonstrating the process in the case of simulating the normality of radio | wireless data communication with the radio | wireless data communication simulation apparatus concerning embodiment of this invention. It is a flowchart for demonstrating the process in the case of simulating the normality of radio | wireless data communication with the radio | wireless data communication simulation apparatus concerning embodiment of this invention. It is a flowchart for demonstrating the process in the case of simulating the normality of radio | wireless data communication with the radio | wireless data communication simulation apparatus concerning embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wireless data communication simulation apparatus 11 Input part 13 Simulation condition selection part 15 Train operation condition acquisition part 17 Storage part 19 Simulation execution part 21 Display part 100 Ground station 101 Train information collection server part 103 Notification server part 105 Broadcast communication server part 107 Vehicle failure management server unit 109 Terminal device 111 Display device 113 Ground side wireless communication unit 115A A zone base station 115B B zone base station 117A A zone 117B B zone 200 Car upper station 201 Car upper radio communication unit 203 Car upper station control unit 205 Display section D1 On-line display area D2 Monitor screen display area D3 Communication log display area W Transmission path

Claims (7)

The railway route is divided so as to include at least one wireless communication base station provided on the ground, and the mobile station mounted on the train traveling across the zone of the route division and the route division in which the train is running A wireless data communication simulation device for simulating the normality of wireless data communication with a base station in a zone,
An input unit to which selection information for selecting a simulation condition, which is a condition for performing a simulation, is input from the outside;
A plurality of simulation conditions are held in advance, and a simulation condition selection unit that selects one or more simulation conditions from the plurality of simulation conditions based on the selection information;
Based on the simulation condition selected by the simulation condition selection unit, a train operation condition acquisition unit that acquires operation condition information that is information related to the operation condition of the train to be simulated,
A storage unit for storing at least one of a program and data related to the simulation;
Simulation execution for executing a simulation of wireless data communication between the ground station and the mobile station using the simulation condition selected by the simulation condition selection unit and the train operation condition acquired by the train operation condition acquisition unit And
A wireless data communication simulation apparatus comprising: The simulation conditions are simulation target information that is information for simulating train organization, travel section, operation time, type of diamond, and normality of wireless data communication,
The wireless data communication simulation apparatus according to claim 1. The type of the diamond is any one of a plan diamond, an actual diamond, and an implementation diamond;
The wireless data communication simulation apparatus according to claim 2. The simulation condition selection unit selecting any two or more of the simulation conditions in combination;
The wireless data communication simulation apparatus according to claim 1. The simulation target information is any one of train number, wireless zone information, operation arrangement notification information, operation regulation notification information, operation delay information, transfer information, and failure information;
The wireless data communication simulation apparatus according to claim 2. The operation condition information of the train is a zone number of a train number, a diagram or a route segment,
The wireless data communication simulation apparatus according to claim 1. A display unit configured to receive and display the simulation conditions, the operation condition information, and simulation result information output from the simulation execution unit;
The wireless data communication simulation apparatus according to claim 1.

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