JP2004249910A - Transportation information display system - Google Patents

Abstract

A server device obtains a transport information display system that allows an initial display suitable for each client terminal and also allows each client terminal to display operation information at the same cycle.
A server device receives a request signal from a client terminal, processes the request signal, a general-purpose Web server, a Web data generation program that generates Web data based on the request signal, An I / F program 12c that periodically acquires data from the operation management system 10 that manages the operation of the train; an operation display server 13 that processes the data acquired by the I / F program 12c to transmit and receive various data; The client terminal 15 includes a general-purpose Web browser 15a that displays Web data received from the server device 13, and an operation display client 15b that transmits and receives data to and from the operation display server 13 and displays the operation status of the train. .
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a transport information display system, and more particularly to a transport information display system for acquiring information from a train operation management system and displaying various types of transport information including a train operation status.
[0002]
[Prior art]
The transport information display system is a system for displaying information such as an operation status managed by an operation management system of a command center even in a remote place such as a station office or a maintenance area. With this system, it is possible to grasp the operation status of trains over a wide area without restrictions on places, and by sharing real-time information related to train operation, it is possible to respond quickly even if the train schedule is disrupted It becomes.
[0003]
The transport information display system has a configuration in which a server device for distributing information and the like is located at a command center, a client terminal for displaying information is located in a remote place such as a station office, and these are connected via a network. Take. In the conventional system, a dedicated application that performs the function must be installed in each client terminal. If software modification occurs due to a change in equipment, etc., the modified version is manually installed in each client terminal. I needed to. Since a large number of target client terminals are arranged over a wide range, the operation is a very laborious and costly operation.
[0004]
One solution to this problem has been proposed (for example, see Patent Document 1).
[0005]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2002-67961
In the proposed method, a general-purpose Web browser is operated on a client terminal, thereby displaying train information including operation status. In the client terminal, a client application (Java (registered trademark) applet) is operated on a Web browser, and the client application requests display information to a server application running on the server device. Upon receiving the request, the server application creates HTML data relating to the request and sends the data to the client application. The above-mentioned problem is solved by the method using the Web technology.
[0007]
Further, according to this method, it is possible to easily change the display contents and the display mode by changing the document data described in HTML. This has made it possible to reduce the cost of software modification such as equipment change.
[0008]
[Problems to be solved by the invention]
However, in the above method, since each client application transmits an information request to the server application at each cycle timing, even if the same information is displayed on each client terminal, the content may be different. For example, if the information update interval of the client application is set to one minute in order to reduce the network load, the display shift will occur for a maximum of one minute. Regarding the display of the operation status, even in a remote place, some real-time property is required, and sharing of the same information leads to prompt response in an emergency, which hinders this.
[0009]
In addition, since the server application does not manage attributes such as the installation location of each client application, it is impossible to cause each client application to perform an appropriate initial display. For example, when the initial display of the client application is set to the information of the section 1, the client application of the section 3 displays the information of the section 3 after the initial display, that is, after the screen of the section 1 is displayed. It is necessary to switch, and the processing efficiency deteriorates, such as two times of communication of the initial display and the display occurring between the server application.
[0010]
Furthermore, in the above-mentioned method, for example, in the operation status display, only the variable display sections such as the train number display window and the section cell are described using the Java (registered trademark) applet, and the fixed display sections such as the station name and the station platform are described in HTML. Describe. In the screen display, the arrangement of the variable display section and the fixed display section is important. However, in the above-described method, since these are treated separately, it is difficult to change the display form thereof. Further, when the line wiring or the like is changed, in the above-described method, since the section cell representing the line is a Java (registered trademark) applet, the change involves modifying the source code, and it is difficult to easily modify the line code.
[0011]
The present invention has been made in order to solve such a problem, and it is possible for a server device to perform an initial display suitable for each client terminal, and for the server device to provide operation information to each client terminal at the same cycle. It is an object of the present invention to obtain a transport information display system capable of displaying a message.
[0012]
[Means for Solving the Problems]
The present invention relates to an operation management system for managing the operation of a train, a server device connected to the operation management system via a LAN, and a client terminal connected to the server device via a network. In the system, the server device receives a request signal from the client terminal and processes the request signal, and a Web server that generates Web data for returning to the client terminal based on the request signal. A data generation program, an I / F program for periodically acquiring data from the operation management system, and an operation display for processing the data acquired by the I / F program and transmitting / receiving various data to / from the client terminal. And a server, wherein the client terminal receives from the server device Includes a general-purpose Web browser to display the serial Web data, and an operation display client that displays the operation status of the train going the transmission and reception of the operation display server and data.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
FIG. 1 shows a configuration diagram of a transport information display system according to Embodiment 1 of the present invention. As shown in FIG. 1, an operation management system 10 for managing the operation of a train is connected to a server device 12 via a LAN 11. A plurality of client terminals 15 are connected to the server device 12 via a network (communication network) 14 such as the Internet. The client terminal 15 is installed at each station through which the train passes. The client terminal 15 transmits an operation display request to the server device 12 via the network 14 and returns a response in response to the request. A general-purpose web browser 15a that receives the received web data, sets an initial display on the general-purpose web browser 15a based on the information included in the web data, activates the general-purpose web browser 15a, and transmits the data to and from the operation display server 13. An operation display client 15b is provided for transmitting and receiving and displaying the operation status of the train, such as the train line. In FIG. 1, the general-purpose Web browser 15a and the operation display client 15b are described only in one of the client terminals 15, but this is for simplification of the drawing. 15 are similarly provided.
[0014]
The server device 12 includes a general-purpose Web server 12a that receives and processes various requests such as an operation display request transmitted from the client terminal 15, and Web data to be returned to the client terminal 15 in accordance with the received request. A Web data generation program 12b to be generated is provided. Further, an I / F program 12c for periodically acquiring data from the operation management system 10 connected to the LAN 11, a display target data 12d storing the data acquired by the I / F program 12c, an I / F program An operation display server 13 is provided for processing the data acquired by 12c and transmitting / receiving various data to / from the client terminal 15.
[0015]
The operation display server 13 includes a processing unit 13a that processes various data acquired by the I / F program 12c, a data transmission and reception unit 13b that transmits and receives data to and from the client terminal 15, and a variable display unit of the operation display client 15b. Allocation data 13c storing a correspondence table between the identification information assigned to the various types of data acquired by the I / F program 12c, and client management data 13d receiving and storing the identification information from the operation display client 15b Are provided.
[0016]
Next, the operation will be described with reference to FIG. The client terminal 15 transmits an operation display request to the general-purpose Web server 12a via the network 14 by using the general-purpose Web browser 15a. This request includes information for determining an initial display such as the terminal ID of the client terminal 15 itself and an installation station. Upon receiving the information, the general-purpose Web server 12a manages the information for each client terminal 15 and passes the information to the Web data generation program 12b. The Web data generation program 12b generates Web data (for example, HTML data) including initial display information of the client terminal 15 and information of an operation display client (for example, Java (registered trademark) applet), and converts the Web data to general-purpose Web. Hand over to server 12a. The general-purpose Web server 12a transmits the Web data to the general-purpose Web browser 15a, and upon receiving the Web data, the general-purpose Web browser 15a displays the data according to a predetermined process. As a result, the operation display client 15b sets the initial display on the general-purpose Web browser 15a based on the information included in the Web data and starts up.
[0017]
FIG. 2 shows an example of a display screen of the operation display client 15b. In this example, the operation display client 15b includes an operation unit 20 and an operation display unit 21. Hereinafter, the operation unit 20 will be described. When the station where the client terminal 15 is installed is the station A and the station A belongs to the section 1, the screen of the section 1 is displayed as the initial display, and the section name being displayed is displayed on the section display switching unit 20a. When the station where the client terminal 15 is installed is the H station and the H station belongs to the section 2, the screen of the section 2 is displayed as the initial display. After the activation, different section screens can be displayed by the section display switching unit 20a. By operating the scale switching unit 20b, the display scale can be arbitrarily changed to, for example, 50%, 100%, or 150%. In addition, a message display unit 20c for displaying various messages and a time display unit 20d for displaying the current time are provided.
[0018]
Next, the operation display unit 21 will be described. A fixed display unit such as a line wiring diagram 21a showing a line through which a train passes, a station name 21b and a station platform 21c, and a variable display unit such as a train number display unit 21d and a delay time display unit 21e are provided. The train number display unit 21d is for displaying the current train presence status by the train number which is the identification number of the train, and when the train is on a pre-planned timetable or when it is not. The train color is changed and displayed according to each state such as. The delay time display section 21e displays the delay time of the train with respect to the schedule, and changes the character color according to the degree of early departure or delay. Here, the train number display section 21d and the delay time display section 21e have been described as examples of the variable display section, but the present invention is not limited to this, and it is possible to display a traffic light, a track symbol, a course configuration, and the like. . When the number of stations is large, a screen configuration such as a two-stage line wiring diagram is also possible. When a single screen cannot be displayed, a scroll bar 21f is added to deal with this.
[0019]
The operation display client 15b acquires information to be displayed on the variable display unit from the operation display server 13 via the network 14. At this time, the operation display client 15b transmits the display information received from the operation display server 13 to the corresponding variable display unit using the identification information assigned to each variable display unit. FIG. 3 shows an example of a list of the identification information. The identification information 30 is a set of three values of a screen ID, a component ID, and an attribute ID. The component ID takes a unique value in a certain screen ID, and each component has one or more attributes.
[0020]
Hereinafter, processing for displaying data on the variable display unit of the operation display client 15b will be described in accordance with the processing flow of the processing unit 13a of the operation display server 13 shown in FIG.
[0021]
The operation display server 13 has been started in advance, and performs initialization processing such as setting the number of client terminals 15 connected to the operation display server 13 to 0 in the initialization processing S401. Next, an end determination process S402 for determining whether or not an end signal has been received is performed, and when it is determined that the end has been completed, the process ends. If it is determined that the operation is not to be ended, the operation display server 13 checks whether or not it is the time in S403 to perform the periodic processing. Otherwise, the process proceeds to S404 to perform processing for a new connection from the operation display client 15b.
[0022]
The operation display client 15b transmits a new connection request to the operation display server 13 at startup. The operation display server 13 receives the request via the data transmission / reception unit 13b. This request may be received plural times at the same time. In S404, it is checked whether there is the request, and if there is a request, the processing of S405 to S407 is performed for all request sources. When the connection between the operation display server 13 and the operation display client 15b is established in S405, the operation display client 15b transmits the identification information 30 to the operation display server 13. In S406, the operation display server 13 receives the identification information 30 by the data transmission / reception unit 13b and stores it in the client management data 13d. The client management data 13d stores a list of variable display units currently displayed for each connected operation display client 15b. FIG. 5 shows an example of allocation data 13c which is a correspondence table between the identification information 30 and the display target data 12d periodically acquired from the operation management system 10 via the I / F program 12c. The allocation data 13c defines the data size and the data conversion type with respect to the identification information 30 of each variable display unit. For the correspondence with the display target data 12d, the file number, the record number in the file, the record Defines the byte position in the number and the bit position from that byte position. In S407, the initial value of each variable display unit of the operation display client 15b is acquired from the identification information 30, the allocation data 13c, and the display target data 12d, and the value obtained by converting the initial value by the data conversion type 50 is used as the operation display client 15b. Via the data transmission / reception unit 13b. Each variable display unit of the operation display client 15b determines information to be displayed, a character color, and the like based on the received data, and displays the information.
[0023]
If it is determined in S403 that it is the periodic processing timing, the process proceeds to S408. The operation display server 13 internally stores corresponding display target data 12d for each piece of identification information of the allocation data 13c. In S408, it is determined whether or not it is time to update the internal state. If so, in S409, the data obtained from the display target data 12d is compared with the retained internal data for each piece of identification information. If it has changed, the change storage flag is set and the internal data is updated, and if there is no change, the change storage flag is released. The operation display server 13 periodically transmits data because it is necessary to transmit information in real time to all connected operation display clients 15b. In S410, it is determined whether or not it is the time. If so, the process proceeds to S411, and the process of S412 is performed for all the connected operation display clients 15b. In S412, a change storage flag, which is an internal state, of each piece of identification information of the operation display client 15b is checked, and only changed data is transmitted via the data transmission / reception unit 13b. The operation of the operation display client 15b receiving the data is as described above.
[0024]
By setting the identification information for the message display unit 20c and the time display unit 20d of the operation display client 15b, data transmitted by the operation display server 13, for example, data such as the time of the server device 12 can be displayed. It is.
[0025]
As described above, the server device 12 can perform an initial display suitable for each client terminal 15, and the server device 12 can display the operation information on each client terminal 15 at the same cycle.
[0026]
Embodiment 2 FIG.
The screen data displayed by the operation display client 15b in the present invention is, for example, “Development of GUI Library for Operation Management System”, 35th November 1998 Use of Cybernetics in Railway Create using the editor function (screen editing function) in the method. However, in this method, only the data used in the operation management system 10 is output. Therefore, the above-described method is improved so that data necessary for the present invention can be output. FIG. 6 shows the flow of the processing. In step S601, screen editing is performed by arranging components such as a fixed display unit and a variable display unit on the screen, and setting fonts, sizes, logics of color changes, and the like for these components. In S602, the correspondence between each variable display unit and the display target data is created by allocating the display target data 12d to the variable display unit arranged on the screen by a screen operation such as drag and drop. In S603, the created screen data is output for the operation management system. The above is the description of the above method. In the present invention, step S604 for outputting data for the transportation information display system is added. In step S604, screen data, layout data 70, drawing resource definition data such as fonts and colors are output for the operation display client 15b, and allocation data 13c is output for the operation display server 13. FIG. 7 shows an example of the allocation data 70 for the operation display client 15b. This data is composed of each piece of identification information 30 and information 71 for specifying a target in which the identification information is embedded in the screen data.
[0027]
The data for the operation display client 15b is converted into a screen definition program by the method of "Japanese Patent Application Laid-Open No. 2001-67114", and the operation display client 15b is generated by combining this with a separately created control program for the operation display client 15b. . However, in the present invention, a process for embedding the identification information 30 in each object 71 in the screen data is added to this method.
[0028]
As described above, in the present embodiment, at least one of the server device 12 and the client terminal 15 includes a screen for editing all data related to the operation of the system, including the screen data of the operation display client 15b. Since the editing function section is provided and the editing is performed by the screen editing function section, the software can be easily modified.
[0029]
Embodiment 3 FIG.
In the first embodiment, the method for displaying the train operation as shown in FIG. 2 is described, but the present invention is not limited to this. For example, in the case of the configuration illustrated in FIG. 8, the information generated or managed by the operation management system 10 is acquired by the Web data generation program 12b from the operation management system 10 and generated as HTML data, so that the client terminal 15 can use the general-purpose Web. The information can be browsed using the browser 15a.
[0030]
FIG. 9 shows a screen example of the general-purpose Web browser 15a. The menu section 90 displays each menu item, and performs grouping 90a, 90b, 90c, 90d according to color or the like for each content. The title section 91 displays the selected menu item name. In the narrowing-down section 92, conditions for narrowing down information to be handled in the selected menu are arranged. The data display unit 93 displays information handled by the selected menu.
[0031]
For example, when the station-by-station timetable is selected, the Web data generation program 12b acquires the timetable information of the station where the terminal is stored in advance from the operation management system 10 and, for example, obtains the time-series information of the train departing from and arriving at the station. Is generated as HTML data. Upon receiving the data, the general-purpose Web browser 15a initially displays information about the station where the terminal is installed. As a display form, the narrowed-down condition 93a (information on the station where the terminal is installed at the time of initial display) and the narrowed-down result 93b are arranged. If the information is to be narrowed down after the initial display, the conditions are input in the narrowing-down section, and the execution button 92a is pressed to inquire the Web data generation program 12b.
[0032]
Similar processing is performed for the other menus, and the data is displayed on the general-purpose Web browser 15a.
[0033]
Here, the operation display client 15b described in the first embodiment is activated on the general-purpose Web browser 15a by selecting, for example, the on-line status of the menu 90a. The operation display client 15b is described as a display position such that the operation unit 20 is arranged at the position of the refinement unit 92 and the operation display unit 21 is arranged at the position of the data display unit 93.
[0034]
As described above, also in the present embodiment, the server device 12 can cause each client terminal 15 to perform an initial display suitable as in the first embodiment. Furthermore, in the present embodiment, the information managed by the operation management system 10 is obtained by the Web data generation program 12b from the operation management system 10 and is generated as HTML data, so that the client terminal 15 can use the general-purpose Web browser 15a. Is used to browse the information, so that the configurations of the server device 12 and the client terminal 15 can be simplified, the manufacturing cost of the system can be reduced, and the data processing can be simplified. Processing can be speeded up and the load can be reduced.
[0035]
【The invention's effect】
The present invention relates to an operation management system for managing the operation of a train, a server device connected to the operation management system via a LAN, and a client terminal connected to the server device via a network. In the system, the server device receives a request signal from the client terminal and processes the request signal, and a Web server that generates Web data for returning to the client terminal based on the request signal. A data generation program, an I / F program for periodically acquiring data from the operation management system, and an operation display for processing the data acquired by the I / F program and transmitting / receiving various data to / from the client terminal. And a server, wherein the client terminal receives from the server device A general-purpose Web browser that displays Web data, and an operation display client that transmits and receives data to and from the operation display server and displays the operation status of the train are provided. The display can be performed, and the server device can display the operation information on each client terminal in the same cycle.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a transport information display system according to Embodiment 1 of the present invention.
FIG. 2 is an explanatory diagram showing an example of an operation display client of the transportation information display system of FIG.
FIG. 3 is an explanatory diagram showing an example of identification information for identifying each variable display unit of an operation display client of the transportation information display system of FIG. 1;
4 is a flowchart showing a flow of an operation of a processing unit in an operation display server of the transportation information display system of FIG. 1;
FIG. 5 is an explanatory diagram showing an example of allocation data in an operation display server of the transportation information display system of FIG. 1;
FIG. 6 is a flowchart showing a data creation procedure of the transportation information display system according to the second embodiment of the present invention.
FIG. 7 is an explanatory diagram showing an example of allocation data for an operation display client generated in a data creation procedure of the transportation information display system according to the second embodiment of the present invention.
FIG. 8 is a configuration diagram of a transportation information display system according to Embodiment 3 of the present invention.
FIG. 9 is an explanatory diagram showing an example of a screen in the general-purpose Web browser of the present invention.
[Explanation of symbols]
10 operation management system, 11 LAN, 12 server device, 12a general-purpose Web server, 12b Web data generation program, 12c I / F program, 12d display target data, 13 operation display server, 13a processing unit, 13b data transmission / reception unit, 13c allocation Data, 13d client management data, 14 networks, 15 client terminals, 15a general-purpose web browser, 15b operation display client.

Claims (3)

In a transportation information display system including an operation management system that manages operation of a train, a server device connected to the operation management system via a LAN, and a client terminal connected to the server device via a network,
The server device receives a request signal from the client terminal, and processes the request signal. A general-purpose Web server, and a Web data generation program that generates Web data for returning to the client terminal based on the request signal An I / F program that periodically acquires data from the operation management system, and an operation display server that processes the data acquired by the I / F program and transmits / receives various data to / from the client terminal. Prepare,
The client terminal includes a general-purpose Web browser that displays the Web data received from the server device, and an operation display client that transmits and receives data to and from the operation display server and displays the operation status of the train. Transportation information display system. The transport information display system according to claim 1, further comprising a screen editing function unit for generating each of the data to be displayed by the client terminal. In a transportation information display system including an operation management system that manages operation of a train, a server device connected to the operation management system via a LAN, and a client terminal connected to the server device via a network,
The server device receives a request signal from the client terminal, and processes the request signal. A general-purpose Web server, and a Web data generation program that generates Web data for returning to the client terminal based on the request signal With
The transportation information display system, wherein the client terminal includes a general-purpose Web browser that displays the Web data received from the server device.

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