JP2007099123A - Railroad information communicating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a railroad information communicating system using an existing signal power supply line as a communication path of PLC communication. <P>SOLUTION: The railroad information communicating system transmits information between a main control device 10 and terminal devices 20, 30 connected through the signal power supply line 56 wired in a station facility by PCL communication using the signal power supply line 56 as the communication path. In passenger guide using this system, a passenger guiding device 2 in the main control device 10 generates passenger guiding information from various pieces of train information received from a service management system 1, and transmits data to the signal power supply line 56 through a PLC modem 6 for the passenger guiding device. The terminal device 20 (30) takes in passenger guiding information from the signal power supply line 56 through an automatic broadcasting PLC modem 21 (a display PLC modem 31), and makes guidance by a broadcasting device 23 (a display 33) after converting the information into voice information (display information). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a railway information communication system that performs information communication for passenger guidance and the like on a railway.

  Conventionally, a passenger guidance system has been used in which indicators are provided at the ticket gates and home concourses in the railway station building and the train name, train departure time and destination, etc. are displayed. In this conventional passenger guidance system, a base station is provided in the passenger guidance device that receives passenger information, and necessary information is transmitted to the base station on the display side by wireless communication means (see, for example, Patent Document 1). .)

JP 2001-71909 A

  When a wireless communication means is used as in the patent document, a medium (human body, rain, etc.) that absorbs radio waves between the wireless base station and the wireless base station is crossed or shielded, and there is a problem in ensuring stable transmission. There were many. Therefore, in order to perform stable wireless communication, there are restrictions on the installation positions of the wireless base stations, and it is necessary to increase the number of wireless base stations. Furthermore, in order to carry out safe and accurate railway operations, it is necessary to prevent problems in wireless communication, that is, troubles caused by external communication interference and wireless interception, etc., and it is necessary to strengthen information maintenance management. there were.

  The present invention has been made to solve the above-described problems, and is capable of stable railway information communication while ensuring security, and further, a terminal such as a display device by a simple operation. An object of the present invention is to provide a railway information communication system in which devices can be added / deleted.

  The railway information communication system according to the present invention includes a signal power supply line wired in a station building facility, a main control device and a terminal device connected via the signal power supply line, and the main control device, the terminal device, Information is transmitted by PLC (Power Line Communication) communication using the signal power line as a communication path.

  According to the railway information communication system of the present invention, since the existing signal power supply line installed in the station building facility is used as a communication path for PLC communication, it is not necessary to newly provide a communication path. Road installation costs, maintenance costs, etc. can be reduced. Further, since the communication path is a signal power line (wired), more stable communication is possible than in the case of wireless communication. In addition, the signal power line, which is the communication path, is dedicated for railways and does not lead to the outside, so it is possible to prevent unauthorized access to this communication path from the outside, and it is excellent in terms of information maintenance management (security) There is an effect that.

Embodiment 1 FIG.
The configuration and operation of a railway information communication system according to Embodiment 1 of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic diagram showing a power system to which the railway information communication system of the present invention is connected. As shown in FIG. 1, a feeder power line 53 and a signal power line 56 are installed in a section between substations 51a and 51b owned by a railway company. The feeder power line 53 is a power line for transmitting electric power for driving the train car 63 traveling in this section, and the signal power line 56 is an electric power for signal, electric power for lamp / power of each station. Is a power line for transmitting power.

  At each station (a plurality of stations including the Z station 60 in the figure) existing in the section of the substation 51a and the substation 51b, various signal facilities (for example, the main control device 10, the terminal devices 20, 30, etc.). Only a part of the equipment is displayed in the display (the details will be described later). As illustrated, at a Z station (corresponding to a station building facility) 60 mainly composed of a station building 61 and a home concourse 62, power supply from a signal power line 56 is arranged in the station building 61, and passengers A main control device 10 including a passenger guide device 2 used for guidance, a terminal device 20 including a broadcasting device (corresponding to a guidance facility device) 23 arranged on the home concourse 62 side, a display (in the guidance facility device) This corresponds to the terminal device 30 including 33.

  In addition, in power feeding to the signal power line 56, periodic switching is performed from power feeding from the substation 51a (or substation 51b) to power feeding from the substation 51b (or substation 51a). Due to the periodic switching of the feeding direction, an instantaneous power failure occurs systematically. For this reason, the power stabilization device 52 is connected to the signal power line 56 to stabilize the power supply to various signal facilities. As an example of the power supply stabilization device 52, an uninterruptible power supply (UPS) can be used.

  The above-mentioned various signal facilities (main control device 10, terminal devices 20, 30) are respectively connected to a PLC modem (passenger guidance device PLC modem 6, automatic broadcast PLC modem 21, display PLC) connected to a signal power line 56. It includes a modem 31) and is capable of performing PLC communication for transmitting and receiving information between various signal facilities via the PLC modem. The passenger guide device PLC modem 6 and the passenger guide device 2 are connected by a dedicated signal line 10a. Similarly, the broadcast device 23 and the automatic broadcast PLC modem 21 are connected by a dedicated signal line 20a and a display. 33 and the automatic broadcast PLC modem 31 are connected by a dedicated signal line 30a. In FIG. 1, the signal lines 10a, 20a, and 30a are indicated by broken lines for distinction from the signal power supply line 56 (shown by a solid line), but these signal lines are wired.

Next, with respect to the information communication network in the station building equipment (equipment of Z station 60, that is, equipment arranged in station building 61 and home concourse 62) of the railway information communication system of the present invention, the wiring diagram of FIG. Will be described in detail.
As shown in FIG. 2, the main controller 10 for passenger guidance includes a passenger guidance device 2 that receives various types of train information from the outside, an interlocking device 3 and an input device 4 that are connected to the passenger guidance device 2, and a PLC communication channel (transmission). It is mainly configured by a passenger guidance apparatus PLC modem 6 for connection to a signal power line 56 as a route), and dedicated communication lines 2a (10a), 3a, 4a, 5 (10a), 6a ( 10a). The main control device 10 is arranged in the station office 61, for example, in a station office.

  Various train information is transmitted to the main control device 10 from the external operation management system 1 via the communication lines 1a and 2a. The various types of train information are data including actual train operation status (train position, delay time, etc.), operation information of the train (information such as arrival time and arrival number), and the like. In addition, the passenger guidance device 2 is provided in, for example, a station office room, receives information arbitrarily input by the input device 4 constituting the main control device 10 via the communication line 4a, and adds it to various train information. It has a configuration. Further, in the interlocking device 3 that constitutes the main control device 10, interlocking information such as the station position in the station premises and the traffic light state can be obtained. The interlocking information is transmitted to the passenger guidance device 2 via the communication line 3a, and the passenger guidance device 2 generates passenger guidance information for each train using the interlocking information as a trigger. This passenger guidance information is transmitted to the PLC modem 6 for passenger guidance devices via the communication lines 2a, 5, 6a (these communication lines correspond to the communication line 10a in FIG. 1).

In the passenger guide device PLC modem 6, the passenger guide information is converted into a transmission system of the PLC (power line carrier wave communication) 24 using the signal power line (power line) 56 as a transmission path, and is connected to the signal power line 56. 20 and 30 are transmitted.
The operation management system 1, the passenger guide device 2, the interlocking device 3, the input device 4, and the passenger guide device PLC modem 6 are each supplied with power from the signal power line 56 and driven. In FIG. 2, the signal power supply line 56 as a communication line is mainly shown, and the description of the wiring indicating the power supply state to each device is omitted.

The terminal device 20 arranged on the home concourse 62 side in the station equipment is connected to the signal power line 56 which is a communication path of PLC communication, and the passenger information of the PLC transmission method is restored to the original passenger information. PLC modem 21 for automatic broadcast, automatic broadcast controller 22 that receives the restored passenger guide information transmitted from PLC modem 21 for automatic broadcast and converts it into voice information, broadcast that receives voice information and performs automatic broadcasting The configuration includes the device 23 (having a speaker function). The automatic broadcast PLC modem 21 and the automatic broadcast controller 22 are connected by a dedicated communication line 21a, and the automatic broadcast controller 22 and the broadcast device 23 are connected by a dedicated communication line 22a. Note that the communication lines 21a and 22a in FIG. 2 correspond to the communication line 20a in FIG.
Also in this terminal device 20, the automatic broadcast PLC modem 21, the automatic broadcast controller 22, and the broadcast device 23 are supplied with driving power from the signal power supply line 56, but in order to explain the wiring state as a communication path Only the signal power supply line 56 is shown, and the description of the wiring indicating the power supply state to each device is omitted.

Similarly, the terminal device 30 arranged on the home concourse 62 side in the station facility is connected to the signal power line 56 that is a communication path of PLC communication, and the passenger information of the PLC transmission method is converted into the original information. Display PLC modem 31 restored to passenger guide information, restored guide information transmitted from the display PLC modem 31 and converted to display information, display controller 32, display information received, display information The display 33 is displayed by a method such as electric bulletin board. The display PLC modem 31 and the display controller 32 are connected by a dedicated communication line 31a, and the display controller 32 and the display 33 are connected by a dedicated communication line 32a. Note that the communication lines 31a and 32a in FIG. 2 correspond to the communication line 30a in FIG.
Also in the terminal device 30, the display PLC modem 31, the display controller 32, and the display 33 are supplied with drive power from the signal power line 56. However, the signal power line for explaining the wiring state of the communication line Only 56 is shown, and the description of the power supply state to each device is omitted.

  By using the railway information communication system configured as described above, the passenger guidance information generated in the passenger guidance device 2 is converted into the PLC transmission system by the PLC modem 6 for the passenger guidance device, and then the signal power line 56 is connected. It can be distributed to the terminal device 20 or 30 side as a transmission path. Therefore, since the communication circuit (network in the station building) is constructed using the existing signal power line 56 that does not use wireless communication as in the prior art, there is a problem in the case of the wireless transmission method. The influence of transmission loss due to an external shield or the like, the restriction of the installation position, etc. can be excluded, and a good communication state can be ensured.

Furthermore, in this system, since the signal power line 56 that has been laid in the station facility is used as a communication path between the main control device 10 and the terminal devices 20 and 30, a new communication is realized to realize this system. There is no need to install a circuit, and the cost of implementation and maintenance of this part can be reduced.
In addition, the signal power line 56 serving as a PLC communication channel is a power supply line from the substations 51a and 51b owned by the railway company, unlike the wiring of the commercial power supply. Wiring is inaccessible. Therefore, the use of the signal power line 56 as a PLC communication line is excellent in terms of security.

  In FIG. 2, the communication direction of information (various train information, passenger guidance information, voice information, display information) transmitted on various communication lines is indicated by arrows, but information is transmitted in the opposite direction. Sometimes it is done. The information is, for example, survival monitoring information used for management. The survival monitoring information is information indicating that the terminal device 20 (30) is connected to the main control device 10 (the terminal device is present).

  In the above example, the use of the railway information communication system for passenger guidance was described. However, this system can also be used as a preliminary communication means for purposes other than passenger guidance, for example, for communication between staff members. Is possible.

  In the above example, the terminal devices 20 and 30 are incorporated into the system one by one. However, at a small-scale station, only guidance for either the broadcasting device 23 or the display device 33 is provided. It is also possible to do. In that case, either one of the terminal devices 20 or 30 is arranged at the home and used. Needless to say, a necessary number of terminal devices can be connected to the signal power line 56 in accordance with the scale and shape of the station building facilities.

Embodiment 2. FIG.
Next, Embodiment 2 of the present invention will be described with reference to FIG. In the above-described first embodiment, the terminal device 20 in which the broadcasting device 23 is incorporated and the terminal device 30 in which the display device 33 is incorporated, respectively, with respect to the main control device 10, one signal power line. An example of a model connected via 56 is illustrated. In the second embodiment, as shown in FIG. 3, a plurality of terminal devices 20 (40) in which the broadcasting device 23 is incorporated and a terminal device 30 in which the display device 33 is incorporated in the railway information communication system. A case where a plurality of (50) are connected will be described.

  In order to construct a communication line using the existing signal power supply line 56, a plurality of automatic broadcast PLC modems 21, a plurality of display PLC modems 31, and a passenger guide apparatus PLC modem 6 are used in the range where the signal power supply lines 56 exist. Is connected to the general IP (Internet Protocol) network 25 between a plurality of devices (between the passenger guide device 2 and the terminal devices 20, 30, 40, 50) via these PLC modems. Can be built. A thick solid line indicated by reference numeral 25 in FIG. 3 represents an image for indicating the spread and connection status of the IP network. As a result, it is possible to construct a railway information communication system that can freely communicate with any device using existing technology without being conscious of the transmission path, thereby reducing the design cost when introducing the system. Is possible.

  When this system is used for passenger guidance, since the passenger guidance device 2 is an information source (parent), all data is transmitted from the PLC modem 6 for the passenger guidance device and all the remaining modems (for a plurality of automatic broadcasts). Multicast communication that is distributed to the PLC modem 21 and the plurality of display-use PLC modems 31). In addition, about the kind and number of terminal devices to connect, what is necessary is just to install the required number according to the scale and shape of a station facility.

  Also in the second embodiment, as in the first embodiment, the signal power line 56 which is an existing facility is used as a communication path, so that the installation management cost of the communication line can be reduced and the communication state is better than the wireless state. Can be ensured, and communication interference such as unauthorized access from the outside can be prevented, which is advantageous in terms of security.

Embodiment 3 FIG.
In the above-described second embodiment, the connection between the main control device 10 and the plurality of terminal devices 20, 30, 40, and 50 by multicast communication has been described. In the third embodiment, communication between the passenger guide device 2 and a plurality of terminal devices (automatic broadcast controller 22, display controller 32) is performed in combination with broadcast communication which is a one-to-unspecified many communication method. Shall.

  As shown in FIG. 4, passenger guidance information or its information is converted into a PLC transmission system by broadcast communication between the passenger guidance device 2 and a plurality of controllers (automatic broadcast controller 22, display controller 32). By using the system for transmitting information, the terminal device 30 can be easily added to or deleted from the railway information communication system by connecting or disconnecting the terminal device 30 to or from the signal power line 56. It becomes. Needless to say, other terminal devices can be similarly added / deleted to / from the system.

  As a communication method of the present system, the automatic broadcast PLC modem 21 is included in the range where the signal power line 56 exists without modifying / changing the program constituting the passenger guide device 2 by using broadcast communication together. The terminal device 20 (40) and the terminal device 30 (50) including the PLC modem 31 for display can be arbitrarily added or deleted. For this reason, the terminal devices 20 (40) and 30 (50) can be easily added / deleted (including moving) at the time of arrangement change or extension / renovation in a station.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described with reference to FIG. In the above-described first to third embodiments, the passenger guidance in the station building facility including the station building 61 and the home concourse 62 has been mainly described. In this fourth embodiment, the power system schematic diagram of FIG. As shown, a railway information communication system that uses the feeder power line 53 as a communication path for PLC communication and provides passenger guidance information to a train vehicle 63 traveling in this section will be described.

  When data is transmitted from the passenger guidance device 2 in the station building 61 to the train car 63, a dedicated communication line 57a is connected between the signal power line 56 and the electric power line 53, and both ends of the communication line 57a are connected. At the connection position with the signal power line 56 and the feeder power line 53, a transition PLC modem 57 is installed. Further, in the train car 63, a vehicle PLC modem 58 for restoring information (PLC transmission method) received from the feeder power line 53 and an in-car guide equipment device 59 such as a broadcasting device and a display are mounted. Let The passenger passenger equipment 59 for passenger cars has a function of generating voice information and display information from passenger guide information.

  In the railway information communication system including the above-described configuration, the passenger guide information distributed from the passenger guide device 2 includes the transition PLC modem (signal power line side) 57, the communication path 57a, and the transition PLC modem (feeding power). Power line side) 57, feeder power line 53, and in-car PLC modem 58 are transmitted to in-car guide equipment 59, and based on this passenger guide information, broadcast or display guidance is given to train car 63. Made for passengers on board.

  Normally, it can be said that the passengers in the train car 63 are in a state where it is more difficult to obtain railway-related information (passenger guidance information) than in the station building, but the feeder power line 53 is connected to the PLC communication. By using the communication path, one more communication path can be secured in the train car 63, and a stable passenger guidance service for passengers can be implemented. In addition, it is possible to synchronize the passenger information in the station building and the passenger information in the train car 63, thereby avoiding misguided passengers and confusion caused by information mismatch, and improving the quality of the passenger information service. Can be made.

BRIEF DESCRIPTION OF THE DRAWINGS It is an electric power system schematic diagram including the railway information communication system by Embodiment 1 of this invention. 1 is a wiring diagram of a railway information communication system according to Embodiment 1 of the present invention. It is a wiring diagram of the information communication system for railways by Embodiment 2 of this invention. It is a wiring diagram of the railway information communication system according to Embodiment 3 of the present invention. It is an electric power system schematic diagram including the railway information communication system by Embodiment 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Operation management system 1a, 2a, 3a, 4a, 5, 6a, 10a, 20a, 21a, 22a, 30a, 31a, 32a, 57a Communication line 2 Passenger guidance apparatus 6 PLC modem for passenger guidance apparatuses 10 Main control apparatus 20, 30, 40, 50 Terminal device 21 PLC modem for automatic broadcast 23 Broadcast device 24 PLC (power line carrier wave communication) 25 IP network 31 PLC PLC modem for display 33 Display 51a, 51b Substation 52 Power stabilization device 53 Power supply line 56 Signal power line 57 Transition PLC modem 58 In-car PLC modem 59 In-car guidance equipment 60 Z station (station building equipment)
61 Station building 62 Home concourse 63 Train vehicle.

Claims (7)

  A signal power line wired in station building equipment, a main control device connected via the signal power line and a terminal device, and the signal power line as a communication path between the main control device and the terminal device A railway information communication system, wherein information is transmitted by PLC communication to be used.   A railway information communication system used for passenger guidance, wherein the main control device receives various types of train information transmitted from an operation management system that manages the operation state of a train, and generates passenger guidance information; Including a PLC modem for a passenger guide device for connection with the signal power line, and the terminal device receives the passenger guide information and the display information for the terminal PLC modem for connection with the signal power line. The railway information communication according to claim 1, further comprising: a controller for converting into voice information; and a guidance equipment device that displays or broadcasts at least one of or both of the display information and the voice information. system.   The guidance facility device is a display device that displays the display information or a broadcast device that broadcasts the audio information, and either or both of the display device and the broadcast device are arranged in a station building facility. The railway information communication system according to claim 2, wherein:   The main control device and the plurality of terminal devices are connected to the signal power line via the passenger guidance device PLC modem and the terminal PLC modem, and the main control device and the plurality of terminal devices. 3. An information communication system for railways according to claim 2, wherein an IP network is constructed with the railway.   A system for transmitting the passenger guidance information by broadcast communication between the passenger guidance device and the controller, and adding / deleting the railway information communication system by connecting / disconnecting the terminal device to / from the signal power line. The railway information communication system according to claim 2 or 4, wherein the railway information communication system is used.   A power supply line for supplying power to the train car and serving as a communication path for PLC communication, a communication line wired between the power supply line and the signal power supply line, and connected to both ends of the communication line. The train car includes a PLC modem for transition, and includes a PLC modem for vehicle and an in-vehicle guidance facility device connected thereto, and the passenger guidance information distributed from the passenger guide device includes the transition PLC modem and the communication line. Is transmitted to the feeder power line through the power supply line, and is taken into the vehicle guidance facility apparatus via the vehicle PLC modem from the feeder power line. The in-vehicle guidance facility apparatus is displayed from the passenger guidance information. The railway information communication system according to claim 2, wherein the information or voice information is generated and the information is displayed or broadcast.   The railway information communication system according to any one of claims 1, 2, and 6, wherein the signal power supply line is connected to a power supply stabilization device for stabilizing a power supply. .

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