JP2016118837A - Thin client system, and document file control method of thin client - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an environment in which a user can naturally shift from a connection destination PC (VDI environment) to a thin client use alone to continue work only about a necessary OA task in a thin client.SOLUTION: In a thin client system, an information processing device (PC) provided with a VDI environment includes means for receiving remote control information from a thin client (terminal) and updating a document file stored in a storage device of the PC with a task program of the PC, means for transmitting the updated document file to the terminal, and means for overwriting the document file received from the terminal on the document file stored in the storage device, the terminal includes means for overwriting the document file received from the PC on the document file stored in a temporary storage device of the terminal, and means for transmitting the document file stored in the temporary storage device to the PC, and the terminal automatically starts a task program of the terminal to open the document file stored in the temporary storage device during off-line.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a thin client system, and more particularly to a document file control method for a thin client connected to an information processing apparatus such as a PC.

  In recent years, thin clients have been evaluated for the feature of “no information inside”, and the number of cases that are introduced as one of security enhancement measures is increasing. A thin client accesses a connection destination PC (hereinafter referred to as a VDI environment) that is a virtual desktop environment via a communication device (network device) such as a wired LAN, and remotely operates using communication software in the thin client. Although business is performed, since only the screen image transferred from the VDI environment is displayed on the thin client, no data remains on the thin client, and information leakage can be prevented.

  However, when the thin client moves to a place where the communication device cannot be used, the screen image cannot be displayed and the remote operation cannot be performed, and the work cannot be continued. For this reason, it has been a problem to continue the work even when the communication device cannot be used (hereinafter referred to as offline use).

  As a method to solve this problem, the secure data downloaded from the server and stored in the mobile terminal can be used, and the security is ensured by erasing at a predetermined timing, thereby temporarily disconnecting from the server. Even in such a case, a thin client system has been proposed that allows the operation to continue and realizes a high security level against information leakage (Patent Document 1).

JP 2009-181460

  In Patent Document 1, it is necessary to select and start an application from a terminal menu in advance in order to switch off-line use. However, in thin client use that mainly performs OA operations in a VDI environment, Predicting communication disconnection and switching to offline use in advance is a cumbersome task, and is particularly difficult in wireless communication.

  Further, when returning from offline to online, it is necessary to transfer the file to the VDI environment as necessary and to continue the work in the VDI environment.

  An object of the present invention is to allow only a necessary OA operation to be transferred to offline use in a secure manner without the user being aware of it, and the work can be continued.

  An information processing apparatus (PC) having a VDI environment receives means for receiving remote operation information from a thin client (terminal) and updates a document file stored in the storage device of the PC by a PC business program; Means for transmitting the document file to the terminal and means for overwriting the document file received from the terminal on the document file stored in the storage device, wherein the terminal stores the document file received from the PC in the temporary storage device of the terminal; Means for overwriting a document file stored in the temporary storage device and means for transmitting the document file stored in the temporary storage device to the PC. A thin client system that opens a document file and updates the document file according to input information from a user.

  According to the present invention, it is possible to realize a highly convenient thin client that can continue the OA operation on the thin client without being aware of it when offline.

1 is an overall configuration diagram of a thin client system in an embodiment of the present invention. Overall processing flowchart of file transfer program (VDI) Document file monitoring routine process flowchart of file transfer program (VDI) Message transfer routine processing flowchart of file transfer program (VDI) Overall processing flowchart of the file transfer program (sinker) Document file monitoring routine process flowchart of file transfer program (sinker) Message transfer routine processing flowchart of file transfer program (sinkler) File information configuration diagram Overall configuration diagram of a known thin client system

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

FIG. 9 is an overall configuration diagram of a thin client system which is a known technique.
A known thin client system is composed of a connection destination PC 10, a thin client 20, and a network 30.

  The connection destination PC 10 operates on the OS 108 a remote connection server program 101 that realizes a VDI environment, an OA business program 103 that performs an actual business such as a word processor and spreadsheet software, and the storage device 104 has an OA business program 103. There is a document file folder 105 in which document files to be used are stored.

  The thin client 20 operates on the OS 208 a remote connection client program 201 that realizes connection to the VDI environment.

  When working with the thin client system, the user operates the thin client 20 to log in to the OS 208 while the network 30 is established, and operates the remote connection client program 201 to perform remote connection in the connection destination PC 10. Connect to the server program 101 and log on to the OS 108.

After the start of use, the image data of the PC 10 is transferred from the remote connection server program 101 to the remote connection client program 201,
Remote operation (key input or mouse) information is transmitted from the remote connection client program 201 to the remote connection server program 101, and the thin client 20 virtually operates the connection destination PC 10.

  At this time, for example, when starting the user OA business program 103 of the connection destination PC 10 from the thin client 20, the user OA business program 103 of the connection destination PC 10 is executed by remote operation from the thin client 20 and started. To do.

  In a known thin client system, the OA business program 103 is only started on the connection destination PC 10, and the network 30 is disconnected, and the remote connection server program 101 and the remote connection client program 201 cannot communicate with each other. Remote operation and image transfer are not possible, and the OA business program 103 cannot be operated on the thin client 20 at all.

  FIG. 1 is an overall configuration diagram of a thin client system in an embodiment of the present invention.

  The thin client system is composed of a connection destination PC 10, a thin client 20, and a network 30.

  The connection destination PC 10 executes actual operations such as a remote connection server program 101 that realizes a VDI environment, a file transfer program (VDI) 102 that performs file transfer and OA use document file detection, a word processor, and spreadsheet software on the OS 108. The OA business program 103 is running, and the storage device 104 has a document file folder 105 in which document files used by the OA business program 103 are stored. A plurality of document file folders 105 can be set up.

  The thin client 20 performs operations such as a remote connection client program 201 that realizes connection to the VDI environment, a file transfer program (sinker) 202 that performs file transfer and OA use document file detection, a word processor and spreadsheet software on the OS 208. The OA business program 203 to be executed is operating, and the document file used by the OA business program 203 is stored in the document file folder 205, and passes through the file transfer program (sinker) 202 by the device of the file transfer program (VDI) 102. Are stored in the temporary storage device 204.

  When working with the thin client system, the user operates the thin client 20 to log in to the OS 208 while the network 30 is established, and operates the remote connection client program 201 to perform remote connection in the connection destination PC 10. Connect to the server program 101 and log on to the OS 108. When logging on, a file transfer program (VDI) 102 and a file transfer program (sinker) 202 are activated.

  When the user OA business program 103 is activated, the file is transferred to the thin client 20 by the device of the file transfer program (VDI) 102.

FIG. 8 is a configuration diagram of files stored in the document file folder 105 or the document file folder 205 of FIG. The document file 1051 has file information 10511, and the file information 10511 has file ID, file status, update date / time, and program information 10512 information.
The file information 10511 is information of a file used by a file management system of a basic software such as an operating system in a general computer, not general file information but general attribute information held inside the file. Information can be obtained using commands. In the present invention, this known information is used.

  FIG. 2 is an overall process flowchart of the file transfer program (VDI) 102.

  After the file transfer program (VDI) 102 is activated, it is confirmed using the socket interface of the OS 108 whether a TCP / IP session with the file transfer program (sinker) 202 can be established (step 1021). If communication is possible, the processing of the document file management routine (VDI) 1022 is performed, and the file in the document file folder 105 is transferred to the thin client 20. The socket is a standard network abstraction interface adopted by many general-purpose OSs.

  Next, processing of a message reception routine (VDI) 1023 is performed, and the file reception when the file in the document file folder 205 is edited by the thin client 20 is performed.

  Next, it is confirmed whether a logoff message is issued from the OS 108 (step 1024). If the logoff message has been issued, it is considered that the session of the OS 108 has ended, and the program is ended (step 1025). If the logoff message has not been issued, a fixed wait (1 to 20 seconds) is placed, and then the process returns to step 1021 and the process is repeated.

  If communication is not possible in step 1021, the document file management routine (VDI) 1022 and the message reception routine (VDI) 1023 are not processed because of the offline state, and the process proceeds to step 1024.

  FIG. 3 is a processing flowchart of the document file monitoring routine (VDI) 1022.

  First, the last update date and time of the file in the document file folder 105 is acquired (step 10221). This is performed to monitor the operation of the OA business program because the last update date and time of the file in the document file folder 105 is updated when the file is opened by the OA business program 103. Further, when the file in the document file folder 105 is saved, the last update time is similarly updated.

  It is confirmed whether the last update date and time of the file in the acquired document file folder 105 is within about one minute from the current time (step 10222). When the file in the document file folder 105 is updated within about one minute from the current time, a message (transmission) is notified to the file transfer program (sinker) 202 (step 10223). The file is transferred to the file transfer program (sinker) 202 (step 10224), and the routine processing is terminated (step 10225).

  If the file in the document file folder 105 has not been updated in step 10222, the process proceeds to step 10225, and the routine process is terminated.

  FIG. 4 is a processing flowchart of the message reception routine (VDI) 1023.

  First, the socket interface of the OS 108 is accessed to receive a message from the file transfer program (sinker) 202 (step 10231), and it is confirmed whether the message (transmission) has arrived (step 10232). If a message (transmission) has not arrived from the file transfer program (sinker) 202, the routine processing is terminated (step 10236).

  In step 10232, when the reached message is “message (transmission)”, the file in the document file folder 205 is received from the file transfer program (sinker) 202 (step 10233). Next, the file update date and time of the file in the document file folder 105 and the received file in the document file folder 205 are compared (step 10234). If the file update date and time of the file in the document file folder 205 is old, the routine processing is terminated. (Step 10236).

  When the update date and time of the received file in the document file folder 205 is new, the received file in the received document file folder 205 is overwritten on the document file folder 105 (step 10235), and the routine processing is terminated (step 10236).

  FIG. 5 is an overall process flowchart of a file transfer program (sinker) 202 that communicates with and operates in cooperation with the file transfer program (VDI) 102 shown in FIG.

  After the file transfer program (sinker) 202 is activated, it is confirmed using the socket interface of the OS 208 whether a TCP / IP session with the file transfer program (VDI) 102 can be established (step 2021). If communication is possible, the processing of the document file management routine (sinker) 2022 is performed, and the file in the document file folder 205 is transferred to the connection destination PC 10.

  Next, processing of a message reception routine (sinker) 2023 is performed, and the file reception when the file in the document file folder 105 is opened on the connection destination PC 10 is performed.

  Next, it is confirmed whether a logoff message is issued from the OS 208 (step 2026). If a logoff message has been issued, it is considered that the session of the OS 208 has ended, and the program is ended (step 2027). If a logoff message has not been issued, a fixed wait (1 to 20 seconds) is placed, and then the process returns to step 2021 to repeat the process.

  In step 2021, when communication is not possible, it is in an offline state. If the file in the document file folder 105 is received in advance in the electronic message reception routine (sinker) 2023 when online, it is necessary to open the file using the OA business program 203 so that the business can be continued. is there.

  Of the files in the document file folder 205 stored in the temporary storage device 204, it is confirmed whether the file with the latest update time is opened by the OA business program 203 (step 2024). If it is open, the process proceeds to step 2026 to continue the process. If it is not opened, the file in the document file folder 205 is opened using the OA business program 203. Specifically, FIG. 8 file information 10511 of the target file is acquired, the OA business program 203 associated with the basic software (OS) is started from the program information 10512, and the file in the document file folder 205 is opened (step 2025). .

  The file information 10511 in FIG. 8 can be obtained by using a known OS standard command, and the relation between the program information 10512 and the OA business program 203 also uses the known information related to the OS.

  FIG. 6 is a process flowchart of the document file monitoring routine (sinker) 2022.

  First, the last update date and time of the file in the document file folder 205 in the temporary storage device 204 is acquired (step 20221). This is performed in order to monitor the operation of the OA business program because the last update date and time of the file in the document file folder 205 is updated when the file is updated (saved) by the OA business program 203. .

  The last update date / time of the acquired file in the document file folder 205 is newer than the last update date / time of the file in the document file folder 105 received by the message reception routine (sinker) 2023 and saved in the temporary storage folder 206, and OA. It is confirmed whether the business program 203 is inactive (step 20222). When the file in the document file folder 205 is updated and the OA business program 203 is not operating, a message (send) is sent to the file transfer program (VDI) 102 (step 20223), and the file in the document file folder 205 is saved as a file. The data is transferred to the transfer program (VDI) 102 (step 20224), and the routine processing is terminated (step 20225).

  The file transfer program 202 reads the file status 10512 of the file information 10511 in FIG. 8 to determine whether or not the OA business program 203 is inactive.

  If the file in the document file folder 205 has not been updated in step 20222, the routine processing is terminated (step 20225).

  FIG. 7 is a processing flowchart of the message reception routine (sinker) 2023.

  First, the socket interface of the OS 208 is accessed to receive a message from the file transfer program (VDI) 102 (step 20231), and it is confirmed whether the message (transmission) has arrived (step 20232). If a message has not arrived from the file transfer program (VDI) 102, the routine process is terminated (step 20236).

  In step 20232, when the reached message is “message (send)”, the file in the document file folder 105 is received from the file transfer program (VDI) 102 and stored in the temporary storage folder 206 (step 20233). Next, the file update date and time of the file in the document file folder 205 and the file in the document file folder 105 stored in the temporary storage folder 206 are compared (step 20234), and the received update date and time of the file in the document file folder 105 is old. In this case, the routine process is terminated (step 20236).

  If the update date of the file in the received document file folder 105 (temporary storage folder 206) is new, the received file in the document file folder 105 is overwritten with the file in the document file folder 205 (step 20235), and the routine processing is terminated. (Step 20236).

  Since the file in the document file folder 205 is stored in a volatile temporary storage device 204 such as a RAM disk, the data is deleted when the thin client 20 is turned off. Is secured.

10: Destination PC (VDI environment)
20: Thin client 30: Network 101: Remote connection server program 102: File transfer program (VDI)
103: OA business program 104: Storage device 105: Document file folder 108: OS
201: Remote connection client program 202: File transfer program (sinker)
203: OA business program 204: Temporary storage device 205: Document file folder 208: OS
206: Temporary storage folder 1051: Document file 10511: File information 10512: File ID, file status, update date, program information

Claims (3)

In a thin client system in which an information processing apparatus having a VDI environment and a thin client are connected via a network,
When the thin client is online, the information processing apparatus
Means for receiving remote operation information from the thin client and updating a document file stored in a storage device of the information processing device by an OA business program of the information processing device;
Means for transmitting the updated document file to the thin client;
Means for overwriting the document file received from the thin client with the document file stored in the storage device,
When the thin client is online,
Means for overwriting the document file received from the information processing apparatus over the document file stored in the temporary storage device of the thin client;
Means for transmitting a document file stored in the temporary storage device to the information processing device,
When the thin client is offline,
A thin client system that automatically starts an OA business program of the thin client, opens a document file stored in the temporary storage device, and updates the document file according to input information from a user. In a thin client document file control method connected to an information processing apparatus having a VDI environment via a network,
When the thin client is online,
The information processing apparatus includes:
Receiving remote operation information from the thin client and updating a document file stored in a storage device of the information processing device by an OA business program of the information processing device;
Send the updated document file to the thin client,
The thin client
Overwriting the document file received from the information processing device over the document file stored in the temporary storage device of the thin client,
When the thin client changes from the online state to the offline state,
The thin client
Automatically starting the OA business program of the thin client to open the document file stored in the temporary storage device, updating the document file with input information from the user,
When the thin client changes from the offline state to the online state,
The thin client
Sending the document file stored in the temporary storage device to the information processing device;
The information processing apparatus includes:
A document file control method for a thin client, wherein the document file received from the thin client is overwritten on a document file stored in the storage device. In a thin client document file control method connected to an information processing apparatus having a VDI environment via a network,
When the thin client is online,
The information processing apparatus includes:
Receiving remote operation information from the thin client and updating a document file stored in a storage device of the information processing device by an OA business program of the information processing device;
When the document file is updated within a certain time, the updated document file is sent to the thin client,
The thin client
When the update date and time of the document file received from the information processing device is newer than the update date and time of the document file stored in the temporary storage device of the thin client, the received document file is overwritten on the document file stored in the temporary storage device And
When the thin client changes from the online state to the offline state,
The thin client
Automatically starting the OA business program of the thin client to open the document file stored in the temporary storage device, updating the document file with input information from the user,
When the thin client changes from the offline state to the online state,
The thin client
When the update date and time of the document file stored in the temporary storage device is newer than the update date and time of the document file received from the information processing device, and the OA business program of the thin client is inactive, it is stored in the temporary storage device. Send the document file to the information processing device,
The information processing apparatus includes:
When the update date and time of the document file received from the thin client is newer than the update date and time of the document file stored in the storage device, the received document file is overwritten on the document file stored in the storage device. Thin client document file control method.

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