JP5967274B2 - Terminal device and program - Google Patents

Description

The present invention relates to a terminal device connected via a network to a plurality of processing devices that execute various applications .

  Conventionally, in each PC terminal connected to a network such as an in-house LAN, each PC terminal independently activates and executes an application such as document creation or table creation, and various files generated in association with this start up and execution. The data is stored in its own storage device in the PC terminal, or stored in an external storage medium such as a magnetic disk, an optical disk, or a small semiconductor memory, or transferred to and stored in a storage device managed by a server on the network.

  In such a conventional server-client system, the generated file is managed in each PC terminal itself. Therefore, if the PC terminal is lost or illegally taken out and put into the hands of a third party, the saved file is not stored. There is a risk that important information and confidential information may be leaked.

  In addition, if each PC terminal starts and executes an application independently, it is necessary to update, change, and add the application for each PC terminal, which is cumbersome and expensive. .

  For this reason, in recent server-client systems, all applications input / output on each PC terminal (client PC) are started and executed on the server, and all generated files associated with this are managed on the server side. An SBC (Server Based Computing) system [thin client system] has been introduced (see, for example, Patent Document 1 and Patent Document 2).

  According to this SBC system, application processing is started and executed on the server side in response to an input operation on the PC terminal side, file management is performed, and only the display screen data associated therewith is transferred to the PC terminal side in the bitmap format for display. Therefore, no data is left by the application processing on the server side on the PC terminal side, and it simply functions as an input / output terminal. For example, the PC terminal can be lost or illegally taken out. Even if it is in the hands of a person, no file is read out, and a server-client system that is extremely effective in terms of security can be obtained.

  In addition, it is only necessary to update, change, or add an application to the server, and the management is very simple and beneficial.

JP 2004-171063 A JP 2003-158534 A

  On the other hand, in such an SBC system, the load on the server is inevitably high, so the number of PC terminals handled by one server is limited. For example, a server is installed for each section in the departmental unit on the in-house LAN. It will be.

  In such a case, the PC terminal side not only uses the application functioning on the server connected to the server of the section to which the terminal belongs, but also connects to another server on the other server. It is inevitable that there will be a demand to use applications that work with.

  However, in the conventional SBC system, in order to connect and use its own PC terminal with a desired server, it is necessary to specify and input an IP address that is connection information of the desired server. For this reason, the user must know the IP addresses of all servers on the network.

  Each time an application on each server is selected and used, there is a problem that the IP address of each server must be designated and input, and the connection with the server must be redone.

An object of the present invention is to make it easy to check a desktop screen displayed on a plurality of processing devices and execute an application on the plurality of processing devices .

The invention according to claim 1 is a terminal device connected via a network to a plurality of processing devices that execute various applications, and the processing device that is the execution source of the application identifies the plurality of applications associated with each Display control means for displaying a list of application identification information to be displayed, a device list display for displaying a list of a plurality of device identification information for identifying each of the plurality of processing devices, and a display on the application list display When any one of the plurality of application identification information is arbitrarily selected, the execution source processing device associated with the selected application identification information is identified, and the identified A first request means for requesting the processing device to execute an application process identified by the selected application identification information; When any device identification information is arbitrarily selected from the plurality of device identification information displayed on the list display, the processing device identified by the selected device identification information is identified, and the identified An application generated by executing an application on the processing device side based on the request from the second request means for requesting the desktop screen to the processing device and the corresponding processing device to which the application processing is executed. Receiving the screen data, on the other hand, receiving means for receiving the desktop screen data displayed in the processing device from the corresponding processing device that is the request target of the desktop screen, the display control means , And display control of application screen data or desktop screen data received by the receiving means. .

According to the present invention, it is possible to easily check a desktop screen displayed on a plurality of processing devices and execute an application on the plurality of processing devices.

1 is a block diagram showing a configuration of an SBC (Server Based Computing) system according to a first embodiment of a computer system of the present invention. The figure which shows the content of the config setting file (A) 13a with which the server apparatus (A) 11a of the SBC system of the said 1st Embodiment is provided. The flowchart which shows the terminal process accompanying the client-server connection by the SBC system of the said 1st Embodiment. The flowchart which shows the server process accompanying the client-server connection by the SBC system of the said 1st Embodiment. It is a figure which shows the terminal initial screen G accompanying the client-server connection control processing by the said SBC system, The figure (A) shows the terminal initial screen Ga in the state which selected the application tab A, The figure (B). FIG. 4 is a diagram showing a terminal initial screen Gb in a state where a desktop tab D is selected. The figure which shows the desktop selection screen (D1-D6) accompanying the client-server connection control processing by the said SBC system, and the desktop screen Dn after the selection connection. The figure which shows the application selection screen (A1-A6) accompanying the client-server connection control processing by the said SBC system, and the application screen An after the selection connection. The block diagram which shows the structure of the SBC system which concerns on 2nd Embodiment of the computer system of this invention. The figure which shows the content of the config setting file (A) 13a 'with which the server apparatus (A) 11a of the SBC system of the said 2nd Embodiment is provided. The figure which shows the content of the synchronous server management file 17a with which the server apparatus (A) 11a of the SBC system of the said 2nd Embodiment is provided. The flowchart which shows the server process accompanying the client-server connection by the SBC system of the said 2nd Embodiment. The flowchart which shows the configuration file synchronization process accompanying the server process of the SBC system of the said 2nd Embodiment. The block diagram which shows the structure of the SBC system which concerns on 3rd Embodiment of the computer system of this invention. The figure which shows the content of the load condition management file 18a with which the server apparatus (A) 11a of the SBC system of the said 3rd Embodiment is provided. The flowchart which shows the terminal process accompanying the client-server connection by the SBC system of the said 3rd Embodiment. The flowchart which shows the server process accompanying the client-server connection by the SBC system of the said 3rd Embodiment. The flowchart which shows the data update process in the load distribution process accompanying the server process of the SBC system of the said 3rd Embodiment. The flowchart which shows the execution Host determination process in the load distribution process accompanying the server process of the SBC system of the said 3rd Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing the configuration of an SBC (Server Based Computing) system according to the first embodiment of the computer system of the present invention.

  This SBC system includes a plurality of server devices (A) 11a, (B) 11b,... Connected to a network 10 composed of a LAN (Local Area Network) or a WAN (Wide Area Network), and each server device (A ) 11a, (B) 11b,..., A plurality of client terminals (1) 12a, (2) 12b,.

  In the SBC system of the first embodiment, the number of client terminals 12 on the network 10 that each server device (A) 11a, (B) 11b,... The main (initial) connection destination of 12a to (3) 12c is the server device (A) 11a, and the main (initial) connection destination of the client terminals (4) 12d to (6) 12f (not shown) is the server device (B). 11b, and the main (initial) connection destinations of the client terminals (7) 12g to (9) 12i (not shown) are the server device (C) 11c.

  Each of the server devices (A) 11a, (B) 11b,... Has a plurality of application programs such as a document creation processing program, a spreadsheet processing program, a mail processing program, an Internet connection processing program, and a Web display program. .. Are started up and executed in response to operation input signals from the client terminals (1) 12a, (2) 12b,... Connected to the server devices (A) 11a, (B) 11b,.

  In this server apparatus (A) 11a, (B) 11b,..., A display output screen accompanying execution of an application program according to an operation input signal from the client terminals (1) 12a, (2) 12b,. The data is transmitted to the access source client terminals (1) 12a, (2) 12b,... And displayed on the terminal display unit.

  That is, each of the client terminals (1) 12a, (2) 12b,... In this SBC system has only an input function corresponding to a user operation such as a keyboard and a mouse and an output function such as an LCD display unit and a printer. Does not have any data file management function.

  And generated in accordance with various processes that are activated and executed by the server devices (A) 11a, (B) 11b,... According to operation input signals from the client terminals (1) 12a, (2) 12b,. The data file is stored in a user account in a storage device such as a magnetic disk managed and managed in each server device (A) 11a, (B) 11b,... Or in each server device (A) 11a, (B) 11b,. Every time or as a shared file, it is stored and saved.

  Further, each of the server devices (A) 11a, (B) 11b,... In this SBC system has a configuration setting file (A) 13a, (B) 13b,.

  FIG. 2 is a diagram showing the contents of the configuration setting file (A) 13a provided in the server device (A) 11a of the SBC system of the first embodiment.

As shown in FIG. 2, the configuration file (A) 13a included in the server apparatus (A) 11a includes 1) each server apparatus (A) 11a, (B) 11b,. 11f IP address [host01 = 192.168.0.20] [host02 = 192.168.0.21] ... [host06 = 192.168.0.25], 2) This server device (A) 11a [host01] 3) Communication protocol [protocol: RDP (Remote Desktop Protocol), VNC (Virtual Network Computing)] of this server apparatus (A) 11a [host01], 4) This server apparatus (A) 11a [host01] path and file name [shell:...] Of each application 5) Desktop of each server device (A) 11a, (B) 11b,..., (F) 11f on the network 10 Image file
[uri: [host01 = http: //192.168.0.20/desktop/screen_s00.jpg] [host02 = http: //192.168.0.20/desktop/screen_s01.jpg]… [host06 = http: //192.168.0.20/desktop /screen_s05.jpg], 6) An initial (desktop) image file of each application provided in the server apparatus (A) 11a [host01] is stored in advance.

  The configuration file (A) 13a included in the server device (A) 11a is accessed from the client terminals (1) 12a to (3) 12c whose main connection destination is the server device (A) 11a. Are transmitted to the access source client terminals (1) 12a to (3) 12c and stored as configuration reception data 14 in the storage devices in the client terminals (1) 12a to (3) 12c.

  In the same manner as the configuration file (A) 13a of the server device (A) 11a, the server device (B) 11b is also connected to 1) each server device (A) 11a, (B) 11b on the network 10. ,..., (F) 11f as the connection information of each host IP address [host:...], 2) Application name [application:...] Provided in the server apparatus (B) 11b [host02], 3) Communication protocol [protocol: ...] of the server device (B) 11b [host02], 4) Path and file name [shell: ...] of each application provided in the server device (B) 11b [host02], 5) The desktop image files [uri:...] Of each server device (A) 11a, (B) 11b,..., (F) 11f on the network 10, and 6) the server device (B) 11b [host02]. Each application desktop Image files stored configuration settings file (B) 13b are provided in advance.

  The other server devices (C) 11c... Are similarly provided with configuration setting files (C) 13c.

That is, for example, when the client terminal (1) 12a receives the configuration setting file (A) 13a in connection with the connection with the server apparatus (A) 11a and stores and holds it as the configuration reception data 14, the client terminal (1) 12a , Desktop image files of the respective server devices (A) 11a, (B) 11b,..., (F) 11f described in the configuration reception data 14
[uri: [host01 = http: //192.168.0.20/desktop/screen_s00.jpg] [host02 = http: //192.168.0.20/desktop/screen_s01.jpg]… [host06 = http: //192.168.0.20/desktop /screen_s05.jpg]
Are displayed as a desktop selection screen (D1 to D6: see FIG. 6A) for selecting connection to each server device (A) 11a, (B) 11b,..., (F) 11f. The server corresponding to the desktop screen Dn selected by designating the Host IP address [host:...] According to the selection operation on the desktop selection screen (D1 to D6: see FIG. 6A). It is possible to connect to the devices (A) 11a, (B) 11b,..., (F) 11f, and use the desktop images of each application provided in the server device (A) 11a [host01]. A list can be displayed as an application selection screen (A1 to A6: see FIG. 7A) for selecting an application, and this application selection screen (A1 to A6: FIG. 7A) Path and file name of the application in accordance with the selection operation of the reference) [shell: ...] can be specified to be activated and executed the selected application.

  Next, a connection control process between a client and a server by the SBC (Server Based Computing) system of the first embodiment having the above-described configuration will be described.

  FIG. 3 is a flowchart showing terminal processing accompanying client-server connection by the SBC system of the first embodiment.

  FIG. 4 is a flowchart showing server processing accompanying client-server connection by the SBC system of the first embodiment.

  FIG. 5 is a diagram showing a terminal initial screen G accompanying the client-server connection control processing by the SBC system, and FIG. 5A is a diagram showing the terminal initial screen Ga in a state where the application tab A is selected. FIG. 5B is a diagram showing the terminal initial screen Gb in a state where the desktop tab D is selected.

  FIG. 6 is a diagram showing a desktop selection screen (D1 to D6) accompanying the client-server connection control processing by the SBC system and a desktop screen Dn after the selective connection.

  FIG. 7 is a diagram showing an application selection screen (A1 to A6) accompanying the client-server connection control processing by the SBC system and an application screen An after the selective connection.

  For example, when a user registered in the network 10 of the SBC system works using the client terminal (1) 12a, when the client terminal (1) 12a is powered on, the user is prompted to display either FIG. As shown in FIG. 5 (B), the terminal initial screen Ga (Gb) is displayed, and the user account [LOGIN:] and password [PASSWD] for the authentication input window W displayed on the terminal initial screen Ga (Gb) are displayed. :], Host IP address [HOST:], and communication protocol [PROTOCOL:] are prompted for user input (step S1).

  At this time, when the desktop tab D is selected and designated, as shown in FIG. 5B, for example, selection images of six server apparatuses (A) 11a, (B) 11b,..., (F) 11f. When the terminal initial screen Gb showing PC1 to PC6 is displayed and the application tab A is selected and designated, as shown in FIG. 5A, for example, the terminal initial screen showing selection images AS1 to AS6 of six applications Ga is displayed (step S2 → S1).

  Then, according to the authentication input window W on the terminal initial screen Ga (Gb), the user account [LOGIN:], password [PASSWD:], host IP address [HOST:], and communication protocol [PROTOCOL:] are input by the user. When the “OK” button is operated, the entered user account [LOGIN:] and password [PASSWD:] are stored, and then a connection command having an authentication request is specified together with these authentication data. Is sent to the server apparatus (A) 11a of the host IP address (step S3).

  When the server apparatus (A) 11a receives a connection command with an authentication request transmitted from the client terminal (1) 12a (step T1), the user account [LOGIN:] and the password [PASSWD: The authentication setting or the authentication NG is determined (step T2). If it is determined that the authentication is OK, the configuration setting file (A) 13a shown in FIG. It is transmitted to the terminal (1) 12a (step T3 → T4).

  In the client terminal (1) 12a, when the configuration setting file (A) 13a transmitted from the server device (A) 11a is received and saved as the configuration reception data 14 (step S5), the desktop tab is displayed on the current display screen. It is determined whether D is selected or application tab A is selected (step S6).

When it is determined that the desktop tab D is selected as shown in FIG. 5B, for example, six server devices stored as the configuration reception data 14 (see FIG. 2). (A) 11a, (B) 11b, ..., (F) 11f desktop image files
[uri: [host01 = http: //192.168.0.20/desktop/screen_s00.jpg] [host02 = http: //192.168.0.20/desktop/screen_s01.jpg]… [host06 = http: //192.168.0.20/desktop /screen_s05.jpg] is read out and displayed as a list as desktop selection screens (D1 to D6) as shown in FIG. 6A (steps S6 to S7).

  In this desktop selection screen (D1 to D6), for example, when a desktop operation D2 is instructed by a user operation (step S8), an image file [host02 = http: //192.168.0.20/desktop/screen_s01] of the desktop screen D2 .jpg] according to the host IP address [host02 = 192.168.0.21] of the server apparatus (B) 11b read from the configuration reception data 14 (see FIG. 2), a connection process execution command is sent to the server apparatus (B) 11b. It is transmitted (step S9).

  As a result, when the server apparatus (B) 11b receives the connection process execution command transmitted from the client terminal (1) 12a (step T6), the desktop screen of the server apparatus (B) 11b is correspondingly received. Data is transmitted to the client terminal (1) 12a (step T7).

  Then, as shown in FIG. 6B, the client terminal (1) 12a displays the desktop screen D2 received from the server device (B) 11b corresponding to the user-selected desktop screen (step S12). → S13).

  In this SBC system, for example, at the time of initial connection from the client terminal (1) 12a to the server device (A) 11a, an authentication request is transmitted with the user account [LOGIN:] and the user password [PASSWD:] together with the connection execution command. (Steps S1 to S4), connection authentication processing (Steps T1 to T5) is performed on the server device (A) 11a side, and another server is selected according to the desktop selection on the subsequent desktop selection screen (D1 to D6). When a connection execution command to the device (n) 11n is transmitted (steps S6 to S9), for example, because it is in the same network 10, an authentication request is not transmitted, and another server device (n ) The authentication process is omitted on the 11n side and the command processing is performed immediately. Each time the connection to the server device (n) 11n is switched, a connection execution command to which an authentication request accompanied by the user account [LOGIN:] and the user password [PASSWD:] stored in step S3 is added is transmitted. Authentication processing may be performed by the connection destination server device (n) 11n.

  On the desktop screen D2 (see FIG. 6B) from the server device (B) 11b displayed on the client terminal (1) 12a, arbitrary applications A1, A2,. (Step S14), in response to the selection input signal of the application An being transmitted to the server device (B) 11b (Step T6 → T7), the selected application received from the server device (B) 11b An initial screen is received and displayed (step S15).

  When an input operation corresponding to the function of the application is performed in accordance with the application screen received and displayed on the client terminal (1) 12a, a response is sent to the input operation signal to the server device (B) 11b. (Step T6 → T7), the display screen corresponding to the user operation received from the server apparatus (B) 11b is displayed (Step S16), and any application processing of the user can be executed.

  At this time, in the server device (B) 11b, processing corresponding to an execution command for each user operation input from the accessing client terminal (1) 12a is executed each time, and display screen data corresponding to each processing is stored in the client device (B) 11b. It is transmitted to the terminal (1) 12a (steps T6 → T7).

  Thereafter, when the client terminal (1) 12a performs an end operation of the application process that has been executed by accessing the server device (B) 11b (step S17), it responds to the end operation signal (step T6). (T7) Then, the server device (B) 11b executes the disconnection process with the client terminal (1) 12a. The client terminal (1) 12a is disconnected from the server device (B) 11b (step S18).

  As described above, even in the case of the client terminal (1) 12a whose initial connection destination is the server apparatus (A) 11a, the network 10 acquired from the received data 14 (see FIG. 2) of the configuration setting file (A) 13a. According to the desktop selection screens (D1 to D6) corresponding to each of the above server devices (A) 11a to (F) 11f, the desired server devices (A) 11a to (F) 11f are easily and selectively connected, An application functioning on the selected server device can be activated to execute a corresponding process.

  On the other hand, if it is determined in step S6 that the application tab A is selected as shown in FIG. 5A, the server device (see FIG. 2) stored as the configuration reception data 14 (see FIG. 2). A) The initial (desktop) image file of each application functioning on 11a [host01] is read and displayed as a list as application selection screens (A1 to A6), for example, as shown in FIG. S6 → S10).

  In the application selection screens (A1 to A6), for example, when an application screen A2 is selected and instructed by a user operation (step S11), the configuration reception data 14 (see FIG. 2) is selected according to the image file of the application screen A2. According to the read path and file name [shell:] of the application, a start execution command for the application is transmitted to the server apparatus (A) 11a (step S9).

  Then, in response to the activation execution command of the application A2 being transmitted to the server apparatus (A) 11a (step T6 → T7), as shown in FIG. 7B, the server apparatus (A) 11a The received initial screen of the selected application A2 is received and displayed (step S15).

  When an input operation corresponding to the function of the application is performed according to the application screen A2 received and displayed on the client terminal (1) 12a, the input operation signal is transmitted to the server device (A) 11a. In response (step T6 → T7), the display screen corresponding to the user operation received from the server apparatus (A) 11a is displayed (step S16), and any application processing of the user can be executed.

  At this time, in the server device (A) 11a, processing corresponding to an execution command for each user operation input from the accessing client terminal (1) 12a is executed each time, and display screen data corresponding to each processing is stored in the client device (A) 11a. It is transmitted to the terminal (1) 12a (steps T6 → T7).

  Thereafter, in the client terminal (1) 12a, when the end operation of the application process (A2) that has been executed by accessing the server device (A) 11a is performed (step S17), a response is made to the end operation signal. (Step T6 → T7) Then, the server device (A) 11a executes the disconnection process with the client terminal (1) 12a. Then, the client terminal (1) 12a is disconnected from the server device (A) 11a (step S18).

  In this way, from the list of the initial screens of each application acquired and displayed by the received data 14 (see FIG. 2) of the configuration setting file (A) 13a in connection with the server device (A) 11a as the initial connection destination. In accordance with the application selection screens (A1 to A6), it is possible to easily activate the selected application An and execute a corresponding process simply by selecting and specifying the desired application An.

  Therefore, according to the client-server connection control processing by the SBC system of the first embodiment having the above-described configuration, for example, a predetermined number of client terminals (1) 12a, (2) 12b,. In a plurality of server devices (A) 11a, (B) 11b,... Arranged one by one, each IP address and desktop of each server device (Host) (A) 11a, (B) 11b,. A configuration setting file (A) 13a, (B) 13b,... In which an image file, a communication protocol with the server device, an application name and path and file name of the server device itself, and a desktop image file are stored in advance are provided. When there is an access from the terminal (1) 12a, (2) 12b,. Constant file (A) 13a, (B) 13b, ... the access source client terminal (1) 12a, (2) 12b, ... transmitted to be stored and held to. In the client terminals (1) 12a, (2) 12b,..., Each server device is based on the description content of the configuration reception data 14 received from the server devices (A) 11a, (B) 11b,. (A) 11a, (B) 11b,... Display desktop image list selection screens (D1 to D6), specify the IP address of the Host corresponding to the desktop image Dn selected by the user, and the server device (N) Connect to 11n, display the desktop image list selection screen (A1 to A6) of each application, specify the path and file name corresponding to the desktop image An of the application selected by the user, and Since An is started, the server devices (A) 11a, (B) 11b,. The application can be started by directly specifying from the list selection screen (A1 to A6) without inputting the path and file name one by one, and other server devices (A) 11a, (B) 11b,... Can be directly connected and used from the desktop image list selection screen (D1 to D6) without re-inputting their IP addresses one by one.

  In the first embodiment, the application information described in the configuration setting files (A) 13a, (B) 13b,... Included in each server device (A) 11a, (B) 11b,. The server device (A) 11a, (B) 11b with the configuration setting files (A) 13a, (B) 13b,. Although configured, as will be described in the next second embodiment, each server apparatus (A) 11a, (B) 11b,... , ... for each application name and path, file name and desktop image file It may be configured to be mentioned. In this case, the update operation of the independent application in each of the server apparatuses (A) 11a, (B) 11b,... Is the configuration setting file (A) 13a of all the server apparatuses (A) 11a, (B) 11b,. ′, (B) 13b ′,... Is provided with its synchronization function.

(Second Embodiment)
FIG. 8 is a block diagram showing the configuration of the SBC system according to the second embodiment of the computer system of the present invention.

  In the SBC system of the second embodiment in FIG. 8, the same components as those in the SBC system of the first embodiment in FIG.

  In the SBC system of the second embodiment, each server device (A) 11a, (B) 11b,... On the network 10 has a configuration description file (A) 13a ′, (B) 13b ′,. , And the description contents of the configuration setting files (A) 13a ′, (B) 13b ′,... Are synchronized with the server devices (A) 11a, (B) 11b,. The server device specified in... Is always synchronized.

  FIG. 9 is a diagram showing the contents of the configuration setting file (A) 13a ′ included in the server device (A) 11a of the SBC system of the second embodiment.

  In the configuration setting file (A) 13a ′ of the second embodiment, the server device (A) 11a of the file (A) 13a itself is different from the configuration setting file (A) 13a of the first embodiment in FIG. In addition to application information (application name, path and file name, desktop image file) possessed by the server, other server devices (B) 11b, (C) 11c,. Name, path and file name, desktop image file) are also described as [host02: application: ...] [host03: application: ...] ...

  Config setting files (B) 13b ′, (C) 13c ′,... Included in the server apparatuses (B) 11b, (C) 11c,... Have the same description contents, and the setting files (B) 13b ′, ( C) 13c ′,... Is different only in that application information of its own server device (B) 11b, (C) 11c,.

  The contents of the descriptions of the configuration setting files (A) 13a ′, (B) 13b ′,... Of each server device (A) 11a, (B) 11b,. Are synchronized at a predetermined time interval by the server device designated by 17b,..., And the contents of update such as addition / deletion / change of each application in each server device (A) 11a, (B) 11b,. Can be reflected in the configuration setting files (A) 13a ′, (B) 13b ′,... Of all the server devices (A) 11a, (B) 11b,.

  FIG. 10 is a diagram showing the contents of the synchronization server management file 17a provided in the server device (A) 11a of the SBC system of the second embodiment.

  The server apparatus (A) 11a has a synchronization server management file 17a associated with each server apparatus (A) 11a, (B) 11b,... On the same network 10 and an IP address (Host IP address). Then, a host type flag is set and stored in which its own server device (A) 11a is “1” and the other server devices (B) 11b, (C) 11c,.

  The server apparatuses (A) 11a, (B) 11b,... Receive configuration setting files included in other server apparatuses other than themselves according to the synchronization server management files 17a, 17b,. Update the configuration file and synchronize.

  In other words, the configuration setting files (A) 13a ′, (B) 13b ′,... Included in each of the server devices (A) 11a, (B) 11b,. Is transmitted to the terminal (n) 12n at the time of the initial connection from and stored and saved as the configuration reception data 14 ', the client terminal (n) 12n has the same network as in the SBC system of the first embodiment. 10 displays a desktop image list selection screen (D1 to D6) (see FIG. 6) of each of the plurality of server devices (A) 11a to (F) 11f on the server 10 and displays each server device (A) 11a to (F). ) 11f can be directly specified for connection and use, as well as a list of applications that each of the server apparatuses (A) 11a to (F) 11f has. (Al-An) so that it is possible to connect invoked with direct application (see FIG. 7) to display the corresponding each of the server devices (A) 11a to (F) 11f.

  In this case, the application list selection screens (A1 to An) corresponding to the respective server devices (A) 11a to (F) 11f are, for example, application tabs Aa for the respective server devices (A) 11a to (F) 11f. ˜Af may be provided so as to be switchable.

  Then, on the network 10 of the SBC system of the second embodiment, a storage server 15 is connected to provide a shared disk 16, and each server device (A) is connected to each client terminal (1) 12a, (2) 12b,. ) 11a, (B) 11b,... Are stored and managed on the shared disk 16 for each user account u1, u2,.

  In this way, by collectively managing data files on the network 10 for each user account u1, u2,..., The same type of application can be activated between different server devices (A) 11a, (B) 11b,. The generated data file of the same user can be stored and managed as a common data file.

  Next, client-server connection control processing by the SBC system of the second embodiment having the above-described configuration will be described.

  FIG. 11 is a flowchart showing server processing accompanying client-server connection by the SBC system of the second embodiment.

  The processing in steps T1 to T7 in the server processing of the second embodiment is the same as the processing in steps T1 to T7 in the server processing of the first embodiment in FIG. 4, and a predetermined time in steps T0 → TX. Only the synchronization processing of the configuration setting files (A) 13a ′, (B) 13b ′,... Executed at every interval is different.

  FIG. 12 is a flowchart showing a configuration file synchronization process accompanying the server process of the SBC system of the second embodiment.

  This configuration file synchronization process is executed individually in each server device (A) 11a, (B) 11b,..., For example, the configuration file synchronization process is started in the server device (A) 11a. Then, the [Host] IP address of each server device (A) 11a, (B) 11b,... Described in the synchronization server management file 17a (see FIG. 10), and [[ The Host type flag indicating the [Host] IP address or the [Host] IP address of the other server apparatus (B) 11b, (C) 11c,... Is sequentially read (steps X1, X2).

  Then, the other server apparatuses (B) 11b, (C) 11c,... Other than the own set to the host type flag “0”, according to the respective [Host] IP addresses. (C) 11c,... The configuration setting files 13b ′, 13c ′,... Provided in each are sequentially received and acquired (step X3), and the configuration setting file 13a ′ in the server apparatus (A) 11a is accordingly sent. Is updated (step X4).

  Such configuration setting file synchronization processing is individually executed in each server device (A) 11a, (B) 11b,..., For example, adding or deleting the application in any server device (n) 11n. , Even if there is an update such as a change, in each server device (A) 11a, (B) 11b,..., Each server device (A) 11a, described in its configuration file 13a ′, 13b ′,. (B) Application information (application name, path and file name, desktop image file) for each 11b,... Can be synchronized and unified.

  Note that the flowchart of the terminal processing associated with the client-server connection by the SBC system of the second embodiment is the same as the flowchart of the first embodiment shown in FIG. 3, but in step S6, for example, each server device (A ) 11a, (B) 11b,... And application selection screens (A1 to An) when the application tabs Aa to Af are selected are selected and displayed (step S11). The application execution command generation / transmission process (step S9) is different as described below.

  That is, for example, after the client terminal (1) 12a is initially connected to the server apparatus (A) 11a and the configuration setting file 13a '(see FIG. 9) is received and stored in the client terminal (1) 12a (step S1) To S5), when the application tab Ab (see FIG. 7) corresponding to the server apparatus (B) 11b is selected (step S6), the application corresponding to the server apparatus (B) 11b in the configuration reception data 14 ′ is selected. The initial (desktop) image file of each application is read from the information [host02: application:...] And displayed as a list as application selection screens (Ab1 to Ab6), for example, as shown in FIG. S6 → S10).

  In the application selection screen (Ab1 to Ab6) corresponding to the server device (B) 11b, when the user screen is used to select, for example, the application screen Ab2 (step S11), the configuration is made according to the image file of the application screen Ab2. Connection to the server apparatus (B) 11b and the application according to the IP address of the server apparatus (B) [host02] 11b read from the received data 14 '(see FIG. 9) and the path and file name [shell:] of the application Is generated and transmitted (step S9).

  At this time, the user account [LOGIN:] and the password [PASSWD:] input and stored in step S3 are added to the connection to the server apparatus (B) 11b and the start execution command of the application, and transmitted. .

  Then, the connection to the server apparatus (B) 11b and the start execution command of the application Ab2 are transmitted in response to the transmission to the server apparatus (B) 11b (step T6 → T7), as shown in FIG. 7B. As described above, the initial screen of the selected application Ab2 received from the server apparatus (B) 11b is received and displayed (step S15).

  In this SBC system, for example, at the time of initial connection from the client terminal (1) 12a to the server device (A) 11a, an authentication request is transmitted with the user account [LOGIN:] and the user password [PASSWD:] together with the connection execution command. (Steps S1 to S4), connection authentication processing (Steps T1 to T5) on the server device (A) 11a side is performed, and application selection of each server device on the subsequent application selection screen (Ab1 to Ab6) is selected. Accordingly, when a connection to another server device (n) 11 n and an application execution command are transmitted (steps S 10, S 11, S 9), for example, the selected application is not transmitted because it is in the same network 10. On the other server device (n) 11n side that received the execution command, the authentication process is omitted. It is assumed that the process corresponding to the command is performed later, but even if it is on the same network 10, every time the connection to another server apparatus (n) 11n is switched, the user account stored and held in step S3 [ An execution command to which an authentication request with LOGIN:] and user password [PASSWD:] is added may be transmitted to perform authentication processing at the connection destination server apparatus (n) 11n.

  When an input operation corresponding to the function of the application is performed according to the application screen Ab2 (see FIG. 7B) from the server device (B) 11b received and displayed at the client terminal (1) 12a, In response to the input operation signal being transmitted to the server apparatus (B) 11b (step T6 → T7), a display screen corresponding to the user operation received from the server apparatus (B) 11b is displayed (step S16). The user can execute arbitrary application processing.

  The server apparatuses (A) 11a to (F) corresponding to the display of the desktop image list selection screens (D1 to D6) (see FIG. 6) respectively corresponding to the server apparatuses (A) 11a to (F) 11f. 11f direct selection connection processing (steps S6 to S9, S12, S13) and application activation execution processing (steps S14 to S18) by the selected server device (n) 11n are the processing in the first embodiment. The description is omitted.

  Therefore, according to the connection control process between the client and the server by the SBC system of the second embodiment having the above-described configuration, the configuration setting file (A) 13a ′ included in each of the server apparatuses (A) 11a, (B) 11b,. , (B) 13b ′,..., The application name, path, file name, and desktop image file for all the applications of the respective server devices (A) 11a, (B) 11b,. In the same manner as in the SBC system of the first embodiment, the desktop image list selection screen of each of the plurality of server devices (A) 11a to (F) 11f on the same network 10 is described. (D1 to D6) (see FIG. 6) are displayed, and each of the server devices (A) 11a to (F) 1 is displayed. In addition to direct use of f for connection and use, the application list selection screens (A1 to An) (see FIG. 7) of each of the server devices (A) 11a to (F) 11f are displayed to display each server. The applications of the devices (A) 11a to (F) 11f can be directly selected and designated for connection activation.

  In this case, on the network 10 of the SBC system of the second embodiment, a storage server 15 is connected to provide a shared disk 16, and each server device (1) 12a, (2) 12b,. A) Various data files created by starting and executing the applications 11a, 11B, 11b,... Are collectively stored and managed on the shared disk 16 for each user account u1, u2,. (A) 11a, (B) 11b,..., The same user data file generated by activating the same type of application can be stored and managed as a common data file.

(Third embodiment)
FIG. 13 is a block diagram showing the configuration of the SBC system according to the third embodiment of the computer system of the present invention.

  In the SBC system of the third embodiment in FIG. 13, the same components as those in the SBC system of the second embodiment in FIG.

  In the SBC system according to the third embodiment, in addition to the SBC system according to the second embodiment shown in FIG. 8, each server device (A) 11a, (B) 11b,. Are provided with load status management files 18a, 18b,... For storing and managing operating load statuses in the respective server devices (A) 11a, (B) 11b,.

  FIG. 14 is a diagram showing the contents of the load status management file 18a provided in the server device (A) 11a of the SBC system of the third embodiment.

  In this load status management file 18a, a numerical value indicating the degree of the CPU load for each host, a memory swap, and the IP address having each server device (A) 11a, (B) 11b,. A numerical value indicating the degree, a numerical value indicating the degree of communication traffic, a numerical value indicating the degree of disk use, and a total value of numerical values indicating each load are updated and stored at regular time intervals. A) 11a, (B) 11b,... Are determined and stored in order of priority in ascending order of the total value indicating the load status.

  That is, in this load status management file 18a, the current operation load status of the server device (A) 11a itself provided with the management file 18a and each of the other server devices (B) 11b, (C) 11c,. The current operation load status is digitized and stored and managed, and the order of the server devices with the smallest load status is shown. The other server devices (B) 11b, (C) 11c,. Load status management files 18b, 18b,... Are provided.

  In the SBC system of the third embodiment, for example, the application execution execution command selected in accordance with the display of the application selection screen (see FIG. 7) on the client terminal (1) 12a is the configuration reception data 14 ′ (FIG. 9). In this case, the server apparatus (A) 11a transmits the content of the load status management file 18a (see FIG. 14) when it is transmitted to the server apparatus (A) 11a initially connected by the client terminal (1) 12a. The server device (n) 11n having the smallest current operating load is determined, and the connection change (Host change) to the server device (n) 11n having the smallest current load is notified to the client terminal (1) 12a.

  Then, in the client terminal (1) 12a, the server apparatus (n) with the minimum current load notified from the server apparatus (A) 11a of the initial connection is notified of an activation execution command for the same type of application selected according to the application selection screen. ) It is regenerated and transmitted as an application start execution command to 11n according to the config received data 14 '(see FIG. 9).

  As a result, the user himself / herself does not need to be aware of which server device (A) 11a, (B) 11c,... A desired application can be quickly activated and executed by automatic selection.

  Next, client-server connection control processing by the SBC system of the third embodiment having the above-described configuration will be described.

  FIG. 15 is a flowchart showing terminal processing accompanying client-server connection by the SBC system of the third embodiment.

  FIG. 16 is a flowchart showing server processing accompanying client-server connection by the SBC system of the third embodiment.

  In the terminal processing by the SBC system of the third embodiment, processing steps different from the terminal processing described in the second embodiment are steps S9a and S9b, and in the server processing of the third embodiment. The processing steps different from the server processing described in the second embodiment are steps T0 ′, TX ′, TY, T6a, and T6b.

  First, in the server process of the third embodiment, the data update process in the load distribution process in FIG. 17 is started at every data update timing at regular time intervals (step T0 ′ → TX ′).

  FIG. 17 is a flowchart showing the data update process in the load distribution process accompanying the server process of the SBC system of the third embodiment.

  The data update process in the load distribution process is executed individually in each server device (A) 11a, (B) 11b,..., For example, the data update process is started in the server device (A) 11a. [Host] IP address of each server device (A) 11a, (B) 11b,... Described in the synchronization server management file 17a (see FIG. 10), and [Host] of its own server device (A) 11a. The host type flag indicating the IP address or the [Host] IP address of another server device (B) 11b, (C) 11c,... Is read sequentially (steps X1, X2).

  Then, the other server apparatuses (B) 11b, (C) 11c,... Other than the own set to the host type flag “0”, according to the respective [Host] IP addresses. (C) 11c,... The configuration setting files 13b ′, 13c ′,... Provided in each are sequentially received and acquired (step X3), and the configuration setting file 13a ′ in the server apparatus (A) 11a is accordingly sent. Is updated (step X4).

  In such data update processing, first, the configuration setting file synchronization processing is individually executed in each server device (A) 11a, (B) 11b,..., For example, any server device (n) 11n. Even if the application is updated, such as addition, deletion, change, etc., all the server devices (A) 11a, (B) 11b,... Are described in their configuration setting files 13a ′, 13b ′,. Application information (application name, path and file name, desktop image file) for each of the server apparatuses (A) 11a, (B) 11b,... Can be synchronized and unified.

  When the configuration setting file synchronization processing in steps X1 to X4 is executed, the host type flag “0” read from the synchronization server management file 17a (see FIG. 10) is subsequently set in step X1. The other server apparatuses (B) 11b, (C) 11c,... Are provided in the other server apparatuses (B) 11b, (C) 11c,. The load status management files 18b, 18c,... Are sequentially received and acquired (step X5), and the contents of the load status management file 18a (see FIG. 14) in the server device (A) 11a are updated accordingly. (Step X4).

  That is, the data update processing of the load status management files 18a, 18b,... In each of the server devices (A) 11a, (B) 11b,. In each server apparatus (A) 11a, (B) 11b,..., It is determined which server apparatus is the server apparatus with the smallest load status and current operation load. It can always be judged.

  Then, for example, as shown in FIG. 7, each server is switched by switching the application tabs Aa to Af based on the configuration reception file 14 ′ through the processing of steps S10 and S11 in the terminal processing in the client terminal (1) 12a. When a user-desired application is selected on an application selection screen for displaying a list of desktop screens of applications included in the devices (A) 11a to (F) 11f, an execution command of the selected application is stored in the config reception file 14 '. Based on this, it is transmitted to the corresponding server device (n) 11n (step S9).

  Accordingly, for example, when the execution command of the application transmitted from the client terminal (1) 12a is received in the server device (B) 11b (step T6), the execution host determination processing (in the load distribution processing in FIG. Step TY) is activated.

  FIG. 18 is a flowchart showing execution host determination processing in load distribution processing accompanying server processing of the SBC system of the third embodiment.

  For example, in the server device (B) 11b that has received the execution command of the selected application from the client terminal (1) 12a, when the execution host determination processing (step TY) in this load distribution processing is started, The contents of the load status management file 18b are read (step Y1), and the total value of the numerical values indicating the various operation loads for each server device (A) 11a, (B) 11b,. Step Y2 → Y3).

  Then, the priority order number is also updated in order of increasing operation load total value for each updated server device (A) 11a, (B) 11b,... (Step Y4), and the priority order number is “1”. However, the HostIP address of the server device (n) 11n is read (step Y5).

  Then, the data in the configuration setting file 13b ′ that matches the HostIP address read out in this step Y5 is read out and used as the configuration data of the server device (n) 11n having the smallest current operating load ( Step Y6).

  In other words, in the execution host determination process in this load distribution process, it is determined which server device (n) 11n has the lightest operation load, and it is determined that the operation load is the lightest. Whether or not the host has been changed is determined based on whether or not the server apparatus (n) 11n is its own server apparatus (B) 11b that has received the execution command of the selected application from the client terminal (1) 12a (step T6a).

  Here, for example, it is assumed that the server apparatus (n) 11n determined to have the lightest operating load is not the server apparatus (B) 11b that has received the execution command of the selected application from the client terminal (1) 12a. When it is determined that the change is necessary (step T6a (Yes)), the host change notification information with the HostIP address of the server device (n) 11n having the lightest operation load is transmitted to the client terminal (1) 12a. (Step T6b).

  When the client terminal (1) 12a receives the host change notification information transmitted from the server device (B) 11b and determines that there is a host change (step S9a (Yes)), the host terminal The selected application described in the configuration reception data 14 ′ (see FIG. 9) in association with the HostIP address of the server device (n) 11n with the lightest operating load indicated by the change notification information and the change destination Host. The startup execution command is regenerated based on the information (application name, path and file name, desktop image file) (step S9b), and the server device (n) 11n having the lightest operation load according to the IP address of the change destination host. (Step S9).

  At this time, the user account [LOGIN:] and the password [PASSWD:] input and stored in step S3 are added to the connection execution command of the server device (n) 11n which is the change destination host and the start execution command of the selected application. Sent.

  Then, the connection to the server device (n) 11n and the start execution command of the selected application are transmitted to the server device (n) 11n in response (step T6 → TY, T6a → T7). (N) The initial screen (see FIGS. 7B and 7C) of the selected application received from 11n is received and displayed (step S15).

  Then, an input operation corresponding to the function of the application is performed according to the initial screen (desktop screen) of the selected application from the server device (n) 11n received and displayed at the client terminal (1) 12a. In response to the input operation signal being transmitted to the server device (n) 11n, a display screen corresponding to the user operation received from the server device (n) 11n is displayed (step S16). Can be efficiently executed by the server device (n) 11n having the smallest operating load.

  The server apparatuses (A) 11a to (F) corresponding to the display of the desktop image list selection screens (D1 to D6) (see FIG. 6) respectively corresponding to the server apparatuses (A) 11a to (F) 11f. 11f direct selection connection processing (steps S6 to S9, S12, S13) and application activation execution processing (steps S14 to S18) by the selected server device (n) 11n are the processing in the first embodiment. The description is omitted.

  Therefore, according to the connection control process between the client and the server by the SBC system of the third embodiment having the above-described configuration, the configuration setting file (A) 13a ′ included in each of the server apparatuses (A) 11a, (B) 11b,. , (B) 13b ′,..., The application name, path, file name, and desktop image file for all the applications of the respective server devices (A) 11a, (B) 11b,. In addition to the description and synchronization described above, the load status management files 18a, 18b,... Are provided so that the server device (n) 11n having the smallest current operation load can be always grasped. Similar to the SBC system, a plurality of server apparatuses (A) 11a to (F) 11f on the same network 10 Each desktop image list selection screen (D1 to D6) (see FIG. 6) is displayed and the server devices (A) 11a to (F) 11f can be directly designated and used for connection, as well as a plurality of servers. Display the application list selection screen (A1 to An) (see FIG. 7) of each of the devices (A) 11a to (F) 11f and directly select the application of each of the server devices (A) 11a to (F) 11f Connection can be specified and activated, and the selected application can be efficiently activated and executed by switching the connection to the server device (n) 11n having the smallest current operation load as the activation destination of the selected application. .

  In this case, also on the network 10 of the SBC system of the third embodiment, the storage server 15 is connected to provide the shared disk 16, and each server device (1) 12a, (2) 12b,. A) Various data files created by starting and executing the applications 11a, 11B, 11b,... Are collectively stored and managed on the shared disk 16 for each user account u1, u2,. (A) 11a, (B) 11b,..., The same user data file generated by activating the same type of application can be stored and managed as a common data file.

  Note that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Further, each of the embodiments includes inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in each embodiment, or some constituent requirements are combined, the problem described in the column of the problem to be solved by the invention can be solved, When the effects described in the column of the effect of the invention can be obtained, a configuration in which these constituent elements are deleted or combined can be extracted as an invention.

10: Network 11a, 11b ... Server device (A), (B)
12a, 12b ... Client terminals (1), (2)
13a, 13b ... Config setting file (first embodiment)
13a ', 13b' ... Config setting file (second and third embodiments)
14: Configuration reception data 14 ': Configuration reception data (second and third embodiments)
DESCRIPTION OF SYMBOLS 15 ... Storage server 16 ... Shared disk 17a, 17b ... Synchronization server management file 18a, 18b ... Load condition management file Ga, Gb ... Terminal initial screen D ... Desktop tab A ... Application tab Aa-Af ... For each server [Host] Application tab W ... Authentication input window D1-D6 ... Desktop selection screen A1-A6 ... Application selection screen

Claims (7)

A terminal device connected via a network to a plurality of processing devices that execute various applications,
The application execution source processing device displays a list of application identification information for identifying a plurality of applications associated with each of the processing devices, and displays a plurality of device identification information for identifying the plurality of processing devices. Display control means for displaying a list of devices;
When any application identification information is arbitrarily selected from among the plurality of application identification information displayed in the application list display, the execution source processing device associated with the selected application identification information is specified. First request means for requesting the specified processing device to execute the application process identified by the selected application identification information;
When any device identification information is arbitrarily selected from among the plurality of device identification information displayed in the device list display, the processing device identified by the selected device identification information is identified and identified. Second request means for requesting a desktop screen from the processed processor;
Based on the request, application screen data generated by executing the application on the processing device side is received from the corresponding processing device that is the execution target of the application process, and on the other hand, the application screen data is the request target of the desktop screen. From the corresponding processing device, receiving means for receiving desktop screen data displayed on the processing device;
Comprising
The terminal device, wherein the display control means controls display of application screen data or desktop screen data received by the receiving means. The plurality of application identification information is identification information of an application whose execution source of each corresponding application is different, and for each of the plurality of application identification information, connection information to a processing device of the execution source that executes the corresponding application Storage means for storing connection information to the corresponding processing device for each of the plurality of device identification information,
The first request means requests a processing device connected via a network with connection information of the specific processing device to execute application processing based on the application identification information in the processing device.
The second requesting unit requests a processing device connected via a network with connection information of the specific processing device to request a desktop screen on the processing device.
The terminal device according to claim 1. The plurality of application identification information is reduced image information obtained by reducing an application screen displayed when an application identified by the application identification information is executed,
The plurality of device identification information is reduced image information obtained by reducing a desktop screen displayed when a processing device identified by the device identification information is activated.
The terminal device according to claim 1, wherein: The display control means displays the application list display and the device list display on the display screen in a switchable manner, and displays the application list when switched to the application list display on the display screen. A plurality of application identification information is displayed in an arbitrarily selectable manner, and when the display is switched to the device list display on the display screen, a plurality of device identification information in the device list display is arbitrarily selected. Display as possible,
The terminal device according to any one of claims 1 to 3. When receiving the application screen data, the display control means switches to the display of the application list display and displays it on the display screen, and when receiving the desktop screen data, displays the device list display. Switch to display on the display screen,
The terminal device according to claim 1, wherein the terminal device is a terminal device. A processing device connected to the terminal device according to any one of claims 1 to 5 via a network,
When a request for execution of the application process is received from the terminal device, control is performed to execute the application process indicated by the request and transmit application screen data generated by the execution process to the terminal device And
When receiving a request for the desktop screen from the terminal device, control to transmit the desktop screen data on the processing device side to the terminal device,
The processing apparatus characterized by the above-mentioned. A program for controlling a computer of a terminal device connected via a network with a plurality of processing devices that execute various applications,
The computer,
The application execution source processing device displays a list of application identification information for identifying a plurality of applications associated with each of the processing devices, and displays a plurality of device identification information for identifying the plurality of processing devices. Display control means for displaying a list of devices;
When any application identification information is arbitrarily selected from among the plurality of application identification information displayed in the application list display, the execution source processing device associated with the selected application identification information is specified. First request means for requesting the specified processing device to execute the application process identified by the selected application identification information;
When any device identification information is arbitrarily selected from among the plurality of device identification information displayed in the device list display, the processing device identified by the selected device identification information is identified and identified. Second request means for requesting a desktop screen from the processed processor;
Based on the request, application screen data generated by executing the application on the processing device side is received from the corresponding processing device that is the execution target of the application process, and on the other hand, the application screen data is the request target of the desktop screen. Receiving means for receiving desktop screen data displayed on the processing device from the corresponding processing device;
Function as
The display control means controls the display of application screen data or desktop screen data received by the receiving means.

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