JP2006193071A - Command transmission system for railway facilities - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a command transmission system for railway facilities capable of easily accommodating addition of a command terminal and functional modification. <P>SOLUTION: A plurality of command terminals A, B, C used by railway workers are respectively installed with a main tool function by POP, a transmission server CS for controlling the terminals is installed with a mail server function, and the transmission server is installed with a terminal control function by user account control to perform information transmission between the command terminals A, B, C and the transmission server CS by a POP function, thus increasing and decreasing the number of the command terminals A, B, C without the need for changing the transmission server CS. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a communication system used in a railroad, and more particularly to a railroad equipment command transmission system used for command transmission among personnel arranged at various locations in a railway facility.

  Train operations on railroads are managed based on the commands of the commander who manages the train operations. At this time, the commands may be changed, and in this case, so-called command transmission for railroads is made. (For example, see Patent Document 1).

  Here, this command transmission for railways (hereinafter abbreviated as command transmission) means that if a commander who manages the operation of a train makes a change input from a command terminal to a train, This is to communicate the changes to the railway workers (hereinafter abbreviated as railroad workers) located in each department.

Here, as the main contents of the command transmission between the commander and the railway worker,
-Surveillance of command terminals used by railway workers-Confirm receipt within the time limit-Output of basic information required for command information editing when command transmission is started as a recovery of command terminals, and untransmitted The command information is the command terminal output used by the commander, and the communication method is performed via two servers, the operation management server and the communication control server, installed in the center.

In the conventional technology, the communication method from the commander to the command terminal used by the railway worker after being placed in each department is installed in each department in the program of the operation management server. The communication information of the command terminal is defined, and the communication control server defines the command terminal line installed in each department. That is, in the prior art, a railway worker uses a command terminal defined in two servers, an operation management server and a communication control server.
JP 2003-137099 A

  In the above prior art, consideration is not given to the expansion of command terminals and functional improvements, and it is necessary to repair both the operation management server and the communication control server each time a command terminal is added or functional improvements are made. there were.

  Here, the server refurbishment is accompanied by a stoppage of the server, and the transmission work will be stopped during the renovation period of the server. However, the command transmission is an indispensable function for carrying out the railway operation management work. It is difficult to stop the transmission work while That is, the server cannot be stopped while the train operation business is being performed.

  Therefore, when adding a terminal or refurbishing a function, in the conventional technology, it is necessary to plan in advance a period during which the server may be stopped, and to implement it as planned. This is a major limitation in realizing a flexible transmission system. . Moreover, in the communication control server, the maximum number of line definitions is determined, which limits the number of connection of command terminals, which is also a great restriction on the realization of a flexible transmission system.

  On the other hand, in the case of the prior art, even when looking at the command terminal, this is a dedicated terminal equipped with dedicated software. Accordingly, a dedicated terminal is required for the expansion of terminals, making it difficult to increase the number of terminals. In addition, as a result, dedicated terminals are also required for maintenance of the command terminal.

  In addition, immediacy is required for maintenance at the time of failure. In the case of the prior art, for this purpose, a maintenance system with a reserve of command terminals is secured in advance so that it can cope with an emergency failure. In other words, it was necessary to allow the suspension of the command operation during the period of repairing the command terminal (abandonment of immediacy).

  In addition, in the case of the prior art, since a dedicated terminal is required as a command terminal, a large number of deployments are difficult due to cost and maintenance system maintenance, etc., and the number of maintenance is limited. There were multiple transmission targets to be supported, and it was difficult to realize the function of finely controlling the transmission response according to the contents, and only the function of transmitting to the transmission target was summarized.

  An object of the present invention is to provide a command transmission system for railroad equipment that can easily cope with an increase in the number of command terminals and a function modification.

  The above object is to provide a railway facility command transmission system in which information transmission to a plurality of terminals having a mail tool function by POP is managed by a transmission server having a mail server function by POP. A terminal management function based on account management is provided, and information transmission between the plurality of terminals and the transmission server is processed by the POP function.

  At this time, the above object can be achieved even if the transmission system has a mail server function based on SMTP, and information transmission between the operation management servers at the higher level is processed by the SMTP function.

  As a result of providing the above means, the present invention can be broadly divided into a simple system configuration of a terminal used by railway workers and a server for managing command transmission. On the server that manages command transmission (hereinafter referred to as “transmission server” unless otherwise specified), the transmission server function using a general-purpose protocol is implemented and introduced, which adversely affects the transmission function when adding terminals. There will be no system.

  In addition, terminals used by railway workers can use general-purpose equipment by a transmission method that realizes a command terminal with general-purpose functions, and the command terminal and the transmission server can be easily connected by a general-purpose protocol. It becomes possible to increase the number and to deploy in large quantities, and to provide a command transmission service in a wide range, and it becomes possible to specify a detailed transmission target and transmission method according to the transmission contents.

  According to the present invention, since the transmission server is provided with a general-purpose server function and the POP protocol is used for the communication method with the command terminal, the configuration becomes simple and the introduction cost can be reduced.

  As a result, even when command terminals are added, the command database to be added to the transmission server is added to the transmission server simply by performing a simple operation from the newly added command terminal. It is possible to add command terminals without stopping the system.

  Therefore, it is possible to add a new command terminal and start the service without stopping the transmission service to the command terminal that has already been installed. It is possible to carry out the terminal expansion work at the arbitrary time.

  Needless to say, ensuring communication quality is indispensable for the realization of practical responsence, and the command transmission function is a function that informs each station of the operation status in train operation. This is a function, and even in a highly computerized system, the aspect of dealing with manual transmission will continue to be important as a last resort. Therefore, it can be determined that the applicability of the present invention for realizing more flexible terminal expansion / operation is sufficiently high.

  Hereinafter, the command transmission system according to the present invention will be described in detail with reference to the illustrated embodiment. First, in the case of one embodiment of the present invention, the command transmission system includes a transmission server CS as shown in FIG. A command terminal M held by the worker, a command terminal T mounted on a train, and a command terminal F installed in a department such as a station building are included. The transmission server CS is connected to a higher operation management server MS.

  The SMTP function is used for the information transmission / reception function between the operation management server MS and the transmission server CS, and the POP function is used for the information transmission / reception function between the transmission server CS and each command terminal F, T, M. Has been. Here, SMTP is an abbreviation of “Simple Mail Transfer Protocol” and is a kind of general-purpose communication protocol. Next, POP is “Post Office Protocol”. It is an abbreviation and is also a kind of widely used communication protocol.

  First, the transmission server CS is provided with the following three types of functions.

1. Terminal management function The command terminal M, T, and F installed at the operator, train, and each station divides the terminal management method for managing the command terminal accessible to the transmission server CS for each user using the mail function. Is a function to manage accounts. As a result, the command terminal registered in the account can acquire its own command terminal information in the transmission server CS, and as a result, the system can be constructed without being specified by the receiving side location, the command terminal device, and its OS.

2. Delivery confirmation function Since the command terminal having an account is stored in the database in the transmission server CS by the above terminal management function, the delivery is performed by referring to the transmission database of the corresponding command terminal or all the command terminals in the transmission server CS. A function to check. Thereby, when there is a train change input from the operation management server, it is forcibly delivered and the read / unread confirmation is also performed.

3. Time designation management function This function automatically deletes the relevant data after the designated time has elapsed and prevents unnecessary transmission display.

With the above functions, a system that covers the functions necessary for the transmission system can be temporarily constructed. However, in the embodiment of the present invention, the following functions are further provided:
4). Additional terminals 5. Two types of functions for using a general-purpose terminal are added, and this is a system in which the transmission function can be operated more finely and flexibly. Hereinafter, these points will be described in more detail.

  FIG. 2 is a system diagram of the command terminals A, B, C and the transmission server CS according to the embodiment of the present invention, where each command terminal A, B, C is a command terminal M, T, Each of which is provided with an input unit for inputting a request to the transmission server CS and a display unit for displaying a command transmission from the transmission server CS. .

  On the other hand, the transmission server CS is provided with the three types of management functions described with reference to FIG. 1, and is provided with a mail server function based on POP and SMTP. Server function is provided.

  Therefore, in this embodiment, each command terminal A, B, C and the transmission server CS can perform information communication with each other by the POP function, and the transmission server CS by the operation management server MS and the SMTP function at the upper level. Information can be communicated with each other.

  Next, FIG. 3 is a flowchart for explaining a normal command transmission operation in this embodiment. Hereinafter, the operation will be described with reference to this flowchart. The command terminal T illustrated at this time is assumed to be one of the command terminals A, B, and C in FIG.

  First, when a user (railway worker: worker) operates the input unit (FIG. 2) of the command terminal T and a user input is made (S1), this is transmitted to the transmission server CS by the POP function, and the operation starts. Is done. First, a transmission target list is transmitted from the transmission target DB (database) to the display unit (FIG. 2) of the command terminal T by the POP function, and displayed on the screen (S2).

  At this time, in the transmission target DB, the content of the command transmission is managed (referred to as transmission target management) in accordance with the command transmission transmitted from the operation management server MS by the SMTP function, and which command terminal group responds to the command transmission. Are managed (referred to as attribute management), and these are updated at regular intervals as shown in the figure.

  Therefore, next, the user executes the designated target (S3). In other words, the command transmission to be confirmed is selected from the screen of the command terminal displayed in a list. When the transmission content is input (S4), this is transmitted to the transmission server CS via the POP function (S5), and the transmission is registered in the transmission DB in the transmission server CS. As shown in the figure, time designation management is also performed in this transmission DB, and accordingly, the command transmission after a certain time has been discarded.

  When the command transmission to be confirmed is registered in the transmission DB in this way, the transmission is executed (S6). As a result, the command transmission is displayed on the display unit (S7). As a result, it is possible to designate and transmit the period for distribution to the designated target.

  This function is effective when you want to transmit only to the transmission target that is active in the time zone you want to transmit within a certain group of transmission targets. The case where the transmission is executed will be described. In this case, the user who performs the command transmission inputs the command transmission designating the transmission time zone (transmission period) to the target of the vehicle category.

  Therefore, the transmission server CS performs transmission to the transmission target (target terminal) belonging to this vehicle category, and simultaneously starts time monitoring. At this time, the vehicle that receives the transmission includes a vehicle that can receive the transmission and a vehicle that cannot receive the transmission. In other words, if the vehicle is scheduled to be used as a train within the corresponding time and is active as a terminal, transmission can be received, but there is no use scheduled within the corresponding time and it is in a dormant state. In the case of a non-operating vehicle, the transmission cannot be received.

  For this reason, transmission to a vehicle that is in an inoperative state as a terminal will pass the transmission time zone in the unread state, but at this time, the transmission server CS transmits the unread state after the transmission time zone has passed. If there is, delete it and terminate transmission to the corresponding terminal.

  As a result, even if the vehicle is later used as a train and becomes active as a terminal, the previous transmission is already deleted, so it will not be transmitted to this vehicle (terminal). Therefore, there is no possibility that a vehicle (terminal) side will receive a transmission that is no longer necessary and is unnecessary, and thus it is possible to prevent an erroneous operation from occurring due to erroneous information.

  Next, in FIG. 3, the details of the processing in “execute transmission” in S6 will be described with reference to FIG. 4. First, the transmission DB is a collection of account databases. Here, the account database is a database established for managing the presence / absence of transmission / reception for each command terminal that is the target of command transmission. Specifically, the user login of the corresponding command terminal This is a database that manages names (operators, trains, train organization), command terminal attributes, and time designation. Therefore, there is one account database corresponding to one command terminal.

  Therefore, it is assumed that a command transmission registration request is made from a certain command terminal to the transmission DB (S10). At this time, in the transmission DB, attributes are managed by the transmission target DB. Therefore, next, a transmission target to be transmitted to the command terminal is determined (S11). The command transmission target determined by the account database is transmitted from the transmission server CS to the command terminal as a loop with a constant cycle (S12). At this time, a display is made on the command terminal.

  Next, here, if a time designation request is not registered from the command terminal, the transmitted state is maintained and left as it is (S13). On the other hand, if there is a time designation request, if it is a transmission target (S14), it is registered in the corresponding account database (S15), and then information other than the target is deleted from the transmission DB (database account database) (S16). On the other hand, if it is not the transmission target in the time designation, the designated time is processed in a regular cycle (S17).

  Next, details of the user account will be described with reference to FIG. At this time, it is necessary for the user account to manage the transmission information copied from the transmission target database. For this reason, in addition to the login name and attribute, each user account database receives the reception information as shown in the figure. And a transmitter. Then, when copying from the transmission target database to the corresponding user account database, it is made to enter the receiving unit.

  Then, the transmission information stored in the database of the receiving unit is transmitted to the corresponding command terminal. At this time, when the corresponding command terminal is logged in to the transmission server CS, or login is active. When the message is transmitted, it is sent to the transmission unit at the same time. At the same time, the transmission information is deleted from the reception unit, and the transmission is notified to the sender. On the other hand, if the partner terminal is not logged in even after a certain period of time has elapsed, the sender is notified accordingly.

  FIG. 6 is a flowchart of operations at the command terminal at this time. First, the power of the command terminal is turned on (S20). Next, a user login to the transmission server CS is performed (S21), and thereafter an account database in the transmission server CS is accessed (S23). Here, for example, when there is no account database at the time of new construction (S24), a new account database is created (S25). Then, when there is an account database, it is read from the command terminal (S26) and displayed by loop processing (S22, S27).

  Next, as a specific example of operation according to this embodiment, a process until a worker newly registers his / her command terminal in the transmission server CS at the time of system construction and displays the corresponding command transmission as a transmission target. That is, the processing at the time of “change transmission target” shown in FIG. 3 will be described with reference to FIG.

  In the case of FIG. 7, when the command terminal is input by the user (S30), the user is logged in to the transmission server CS (S31), and the process is started. Needless to say, communication transmission between the command terminal and the transmission server is executed by the POP function.

  At this time, as described above, since it is a new registration, there is no account database of the command terminal in the transmission database in the transmission server CS. Therefore, the result in step S32 is NO, and the command terminal at this time is to perform “new registration”, which is instructed to the command terminal (S33), and in response thereto, the command terminal A user name and an attribute to be transmitted are input (S34).

  Then, this is transmitted to the transmission server CS, and on the transmission server CS side, it is registered as a new user account in the transmission database server (S35), linked to the transmission target DB (S36), and then proceeds to normal processing. is there.

  At this time, in this embodiment, the user account database and the transmission target DB that manages the transmission target are linked, and thereby the attribute item is provided in the transmission target DB. Here, for example, as shown in FIG. 8, this attribute item represents which group of command terminals the user account belongs to, and in each attribute, a transmission target related to each is registered. It is.

  For example, attribute 1 is set to a daytime worker group, attribute 2 is set to a vehicle group, and attribute 3 is set to a night worker group. Are 1 and 3, the transmission target of attribute 2 is 2, and the transmission target of attribute 3 is 3 and 4.

  Therefore, if the user who is newly registering is a daytime worker, the attribute is 1 in this case, and therefore the transmission objects related to this attribute 1 are 1 and 3, so the transmission object 1 3 is registered in the user account of the new command terminal and displayed on the command terminal.

  Thereby, it is possible to perform access control as to which command transmission is performed for the user account of the newly connected command terminal. That is, a transmission pattern that matches the attribute item can be provided for each command terminal.

  As a result, a new command terminal is set (connected) in the transmission server CS. Therefore, according to this embodiment, the following (1), (2), and (3) will be described. Can be drastically reduced. In addition, by adding the attribute item, it is possible to realize not specifying the location, OS, or terminal on the receiving side.

(1) It is possible to increase the number of command terminals without stopping the transmission server CS with attribute items in the transmission target database.

(2) Even if more command terminals are added, access control to the transmission target database becomes possible.

  (3) The transmission target can be updated without interrupting the transmission work.

  Next, as a specific example of the operation according to this embodiment, the processing when the time is designated from the command terminal, that is, the “target change” in FIG. 3 will be described with reference to FIG.

  FIG. 9 shows the processing until the screen display is output to the command terminal when the command terminal designates the time, but here, when the command input operation is performed from the command terminal and login is performed (S40, S41). In the transmission DB of the transmission server CS, as shown in FIG. 3, since information that is not targeted is deleted at regular intervals, unnecessary information is not transmitted (S42). Only the information is displayed on the command terminal as a train information list (S43).

  Therefore, when the time designation is requested at the command terminal (S44) and the transmission DB is referred to by the transmission server CS (S45), the transmission information that has passed for a fixed time by the time designation shown in FIG. 4 is deleted and transmitted to the command terminal. The contents are sent (S46), received by the command terminal (S47), and displayed. Here, when the command terminal further requests arbitrary train detailed information from the transmission server CS (S48), the column number information on the transmission database in the transmission server CS is transmitted to the requesting command terminal. (S49). Therefore, arbitrary column number detailed information is displayed at the command terminal (S50).

  Therefore, according to this embodiment, since the terminal management function based on user account management is provided in the transmission server, the operation is not specified by the location on the receiving side, the type of the command terminal, and the OS installed therein. A terminal such as a PC or a PDA using the PC can be installed.

  As a result, according to the above embodiment, since a general-purpose computer can be used as the command terminal, the number of command terminals can be easily increased, and a large number of command terminals can be incorporated into the system. Therefore, according to this embodiment, the transmission sender can set the transmission target for each user, and the transmission target / time can be set. It becomes possible to narrow down.

  Needless to say, ensuring communication quality is indispensable for the realization of practical responsence, and the command transmission function is a function that informs each station of the operation status in train operation. This is a function, and even in a highly computerized system, the aspect of dealing with manual transmission will continue to be important as a last resort. Therefore, it can be determined that the applicability of the present invention for realizing more flexible terminal expansion / operation is sufficiently high.

It is the schematic of the command transmission system for railway facilities by this invention. It is a block diagram which shows one Embodiment of the command transmission system for railway facilities by this invention. It is a flowchart for demonstrating operation | movement of one Embodiment of this invention. It is an execution operation figure of the transmission processing by one Embodiment of this invention. It is explanatory drawing of the transmission server CS in one Embodiment of this invention. It is a flow figure showing processing at the time of a command terminal logging in to transmission server CS in one embodiment of the present invention. It is a flowchart of the system construction process by one Embodiment of this invention. It is explanatory drawing of transmission object DB by one Embodiment of this invention. It is a flowchart of the time designation | designated setting process by one Embodiment of this invention.

Explanation of symbols

CS: Transmission server MS: Operation management server T: Command terminal A, B, C: Individual name of command terminal T DB: Database POP: A kind of widely used communication protocol
(Abbreviation of Post Office Protocol)
SMTP: A type of widely used communication protocol
(Simple Msil Transfer Protocol)

Claims (2)

In a railway facility command transmission system in which information transmission to a plurality of terminals having a mail tool function by POP is managed by a transmission server having a mail server function by POP.
Provide a terminal management function by user account management in the transmission server,
A command transmission system for railway facilities, wherein information transmission between the plurality of terminals and the transmission server is processed by a POP function. In the railway equipment command transmission system according to claim 1,
The transmission system has a mail server function by SMTP,
An information transmission system for railway facilities, wherein information transmission between operation management servers at the upper level is processed by an SMTP function.

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