JP6205749B2 - Server apparatus, virtual desktop system, input information processing method, and program thereof - Google Patents

Description

The present invention relates to a server device, a virtual desktop system , an input information processing method, and a program thereof, and more particularly to a server device and a virtual desktop system that speeds up an input operation in a virtual desktop environment using the server device .

  In a computer network operated by a company, a virtual computer is created in a server computer (server device) in the data center from the viewpoint of diversifying work styles, reducing operational costs, data backup, security measures, and disaster countermeasures. In many cases, each user logs in and operates a virtual computer from a client computer (client device) connected to a corporate network.

  In this specification, the operation screen of the virtual computer displayed on the client device is referred to as a virtual desktop (VDI). A network system that makes a virtual desktop available from a client device in this way is called a virtual desktop system.

  In relation to this, the following technical documents exist. Patent Document 1 describes an example of a technique for setting a virtual positional relationship between these displays in a multi-display environment in which two or more display devices are connected to one computer. Japanese Patent Application Laid-Open No. 2004-151561 describes a technique that enables control of a virtual desktop according to terminal information of an access source client device. Patent Document 3 describes a technique of displaying an icon corresponding to an attribute of a terminal device on a virtual desktop. Non-Patent Document 1 describes an outline of technology regarding a virtual desktop.

JP 2011-210127A JP 2011-154622 A JP 2011-134040 A

“Virtual desktops that change the view client environment,” [February 4, 2013 search], VMware, Internet <URL: http://vmware-juku.jp/vmwareSE-presents/vmwareview/index .html>

  FIG. 7 is an explanatory diagram showing the relationship between the input operation of the computer and the output corresponding thereto. FIG. 7A shows a case where processing is performed only by a single computer device, and FIG. 7B shows a case where processing is performed by the above-described existing virtual desktop system.

  In the case where the processing is performed only by a single computer device (stand alone) shown in FIG. 7A, there is almost no propagation delay between the input / output unit and the processor (processing unit), so that the input operation can be performed immediately. The calculation process is performed and the result is output immediately. Therefore, the operator does not feel any particular problem with the input operation.

  However, in the case where the processing is performed in the existing virtual desktop system shown in FIG. 7B, it is inevitably propagated between the client device that functions as the input / output unit and the server device that performs the actual calculation processing. There is a delay. In particular, when the transmission distance is long (for example, via a communication satellite) or when the computer network line is congested, the propagation delay becomes long.

  Therefore, the result processed by the server in response to the input operation is not immediately returned to the client, and the input operation of the user is substantially stopped during that time. This exists for every input operation such as one key input or a slight movement of the mouse pointer, for example, which greatly impairs convenience for the operator.

  None of Patent Documents 1 to 3 and Non-Patent Document 1 described above are techniques for solving the problems caused by the propagation delay in the virtual desktop environment, and no technique capable of solving this is described.

An object of the present invention is to provide a server device, a virtual desktop system , an input information processing method, and a server device that can be continuously performed without stopping an input operation even in an environment where there is a propagation delay between the server and the client . And providing the program.

In order to achieve the above object, a server apparatus according to the present invention is a server apparatus that is connected to a client apparatus and constitutes a main part of a virtual desktop system ,
Receiving a user operation input from the client device, the virtual desktop operation unit to be transmitted to the client device to generate a virtual desktop screen as the output result of this, the output of predicting the output results with respect to the operation input of the user A prediction unit, and an output comparison unit that compares the actual processing result by the virtual desktop operation unit and the prediction result by the output prediction unit,
Running when a difference is detected between the result the actual process result and the predicted, the virtual desktop operating unit, that sends the processing by adding a user-friendly notification indicating that the said virtual desktop screen function Ru Tei equipped with, that have adopted a configuration that.

To achieve the above object, a virtual desktop system according to the present invention is a virtual desktop system configured by connecting a server device and a client device to each other, and the server according to claim 1 as the server device. Equipped with equipment,
The client device transmits a user operation input to the virtual desktop screen to the server device, and displays the virtual desktop screen as an output result sent from the server device to the user. I / O management unit
The client device further includes an output prediction unit that predicts the output result of the virtual desktop operation unit with respect to the user's operation input,
Wherein the output management unit of the client device, Ru Tei a function to receive and continue the operation on the basis of the prediction result input by the output prediction unit of the client, that has adopted the configuration that.

Here, the client device is a client device for configuring the virtual desktop system is connected to a server apparatus having a virtual desktop operation unit generating and transmitting a virtual desktop, a user operation input to the virtual desktop In response to this, the input / output management unit presenting the virtual desktop screen as the output result sent from the server device to the user, and the output result by the virtual desktop operation unit in response to the user's operation input is predicted The input / output management unit may have a function of continuously accepting operation input based on a prediction result by the output prediction unit.

In order to achieve the above object, an input information processing method according to the present invention is a virtual desktop system in which a server device and a client device are connected to each other, and the input / output management unit of the client device includes a virtual desktop The user's operation input for the screen is transmitted to the server device, and the virtual desktop operation unit of the server device generates a virtual desktop screen as an output result for the operation input and transmits it to the client device, and the output prediction unit of the client device The output result by the virtual desktop operation unit for this operation input is predicted. The output comparison unit of the server device compares the actual processing result by the virtual desktop operation unit and the prediction result by the output prediction unit,
It operates when a difference is detected between the actual processing result and the prediction result, and the virtual desktop operation unit of the server device adds a notification for the user indicating it to the virtual desktop screen and It is transmitted to the client device, that have adopted a configuration that.

To achieve the above object, an input information processing program according to the present invention provides a virtual desktop configured by connecting a server device and a client device each having a virtual desktop operation unit that generates and transmits a virtual desktop screen. in the system, the processor of the server device predicts the output result of the output result as the virtual desktop screen generated by a transmission processing function of transmitting to the client device, an operation input received from the client device for this operation input prediction processing function, comparison processing function for comparing the prediction result by the steps of predicting the actual process result and the output result of the procedure for generating the virtual desktop screen, and if the actual process result and the prediction result and while in difference detected in, Add a user notification to that effect to the virtual desktop screen and click Additional transmission processing function for transmitting the Ianto apparatus, thereby executing, characterized.

Here, the input information processing program is in a virtual desktop system configured by connecting a server device having a virtual desktop operation unit that generates and transmits a virtual desktop screen and a client device to each other. A procedure for transmitting a user operation input on the virtual desktop screen to the server device, a procedure for predicting an output result by the virtual desktop operation unit for the operation input, and a prediction result by the output prediction unit are presented to the user. continue to receive put procedure step the operation input Te may be so that by the execution.

In the present invention, as described above, the output prediction unit of the server device predicts the output result by the virtual desktop operation unit with respect to the operation input received from the client device, and the output comparison unit of the server device performs the actual processing by the virtual desktop operation unit. If a difference is detected between the actual processing result and the prediction result when the result is compared with the prediction result by the output prediction unit, the virtual desktop operation unit of the server device displays a notification for the user indicating that fact on the virtual desktop screen In addition , the user can continue the operation input based on the prediction result. As a result, even in an environment where there is a propagation delay between the server and the client, the server device, the virtual desktop system, and the input having an excellent feature that the operator can continuously perform the input operation without stopping the input operation. An information processing method and its program can be provided.

It is explanatory drawing which shows the structure of the virtual desktop system which concerns on the basic form of this invention. It is explanatory drawing which shows the structure of the virtual desktop system which concerns on embodiment of this invention. FIG. 3 is an explanatory diagram more conceptually showing the configuration of the virtual desktop system shown in FIG. 2 mainly with software. It is a flowchart shown about input operation performed with the virtual desktop system shown in FIGS. FIG. 5 is an explanatory diagram illustrating an example of a notification for a user added to the output screen by the virtual desktop operation unit in the operation of step S116 in FIG. 4. FIG. 5A shows an example of a normal output screen that does not include a notification for a user, and FIG. 5B shows an example of an output screen that includes a notification for a user. FIG. 4 is an explanatory diagram showing a relationship between an input operation and an output corresponding thereto in the virtual desktop system shown in FIGS. It is explanatory drawing shown about the relationship between the input operation of a computer, and the output with respect to it. FIG. 7A shows a case where processing is performed only by a single computer device, and FIG. 7B shows a case where processing is performed by an existing virtual desktop system.

(Basic form)
Hereinafter, the basic configuration of the present invention will be described with reference to FIG.
First, the basic contents of the basic form will be described, and then more specific contents will be described.
The virtual desktop system 1 according to the basic form is a virtual desktop system configured by connecting a server device 2 and a client device 3 to each other.
The server device 2 includes a virtual desktop operation unit 2a that generates a virtual desktop screen and transmits the virtual desktop screen to the client device, and the client device 3 transmits a user operation input to the virtual desktop screen to the server device. An input / output management unit 3a that displays a virtual desktop screen as an output result sent from the apparatus to the user is provided. At the same time, the client device 3 includes an output prediction unit 3b that predicts an output result by the virtual desktop operation unit in response to the user's operation input. It is configured to have a function of continuously accepting operation input.

Thus, the virtual desktop system 1 can be continuously performed without stopping the input operation based on the prediction result even in an environment with a propagation delay.
A more detailed configuration of each of these means will be described as the first embodiment.

(Embodiment)
Next, the configuration of the first embodiment of the present invention will be described with reference to FIG.
First, the basic content of the present embodiment will be described, and then more specific content will be described.
A virtual desktop system 10 according to the present embodiment is a virtual desktop system configured by connecting a server device 11 and a client device 12 to each other. The server device 11 includes a virtual desktop operation unit 21 that generates a virtual desktop screen and transmits the virtual desktop screen to the client device, and the client device 12 transmits a user operation input to the virtual desktop screen to the server device. An input / output management unit 31 that displays a virtual desktop screen as an output result sent from the apparatus to the user is provided. In addition, the client device 12 includes an output prediction unit 32 that predicts an output result of the virtual desktop operation unit in response to a user operation input, and the input / output management unit 31 of the client device 12 is based on the prediction result of the output prediction unit. A function for continuously accepting operation inputs is provided.

  Further, the server apparatus 11 compares the output prediction unit 22 that predicts the output result of the virtual desktop operation unit 21 with respect to the user's operation input, and the actual processing result of the virtual desktop operation unit 21 and the prediction result of the output prediction unit 22. A function that includes an output comparison unit 23, and if a difference is detected between the actual processing result and the prediction result, the virtual desktop operation unit 21 adds a notification for the user indicating this to the virtual desktop screen and performs transmission processing Is provided.

  Further, if a difference is detected between the actual processing result and the prediction result, the virtual desktop operation unit 21 of the server device 11 discards the operation input after the occurrence of the difference, and the input / output management unit 31 of the client device 12. May be configured to have a function of displaying to the user a virtual desktop screen immediately before the discarded operation input is made. In this case, the output prediction unit 32 of the client device 12 that has received the notification information predicts the output result again from the state immediately before the discarded operation input is made, assuming that there is no operation input. Then, after a difference is detected between the actual processing result and the prediction result, if the output comparison unit 22 of the server device 11 does not detect the difference again between the actual processing result and the prediction result, the server The virtual desktop operation unit 21 of the device 11 has a function of removing the notification for the user from the virtual desktop screen and performing transmission processing.

  Further, even if a difference is detected between the actual processing result and the prediction result, the virtual desktop operation unit 21 of the server device 11 does not discard the operation input after the occurrence of the difference and displays the virtual desktop screen as the output result. It can also be set as the structure provided with the function to produce | generate.

As a result, this virtual desktop system 1 can be continuously performed without stopping the input operation based on the prediction result even in an environment with a propagation delay, and further between the actual processing result and the prediction result. Even if a difference occurs, it can be handled.
Hereinafter, this will be described in more detail.

  FIG. 2 is an explanatory diagram showing the configuration of the virtual desktop system 10 according to the embodiment of the present invention. The virtual desktop system 10 is configured by connecting a server device 11 and a client device 12, both of which are computer devices, via a network 13. In order to simply show the concept of the present invention, one server device 11 and one client device 12 are shown in FIG. 2, but there are actually a large number of client devices 12 and a plurality of server devices 11 are also provided. It is composed of one computer device.

  The server device 11 has a configuration as a general computer device. That is, it includes a processor 11a that is a main body that executes a computer program, a storage unit 11b that stores programs and data, and a communication unit 11c that performs data communication with other devices via a network 13.

  Similarly, the client device 12 has a configuration as a general computer device. That is, the processor 12a, which is a main body that executes a computer program, a storage unit 12b that stores programs and data, a communication unit 12c that performs data communication with other devices via the network 13, and presents processing results to the user. The output means 12d and the input means 12e which receives a user's operation input are provided.

  FIG. 3 is an explanatory diagram more conceptually showing the configuration of the virtual desktop system 10 shown in FIG. 2 mainly with software. The processor 11a of the server device 11 predicts the output contents of the virtual desktop operation unit 21 that generates and operates a virtual desktop screen for each user by the operation of the computer program, and the virtual desktop operation unit 21 for the user's input operation. The output prediction unit 22 and the output comparison unit 23 that performs a process of comparing the result of the actual processing by the virtual desktop operation unit 21 and the prediction result by the output prediction unit 22. The storage unit 11b stores setting information 24 and output prediction information 25 described later.

  The processor 12a of the client device 12 also receives an operation input from the input unit 12e by the operation of the computer program and transmits the operation input to the server device 11, and the operation result screen sent from the server device 11 accordingly is output to the output unit 12d. It functions as an input / output management unit 31 to be presented and an output prediction unit 32 that performs prediction of output contents in response to a user input operation. The storage unit 12b stores timeline information 33 for recording operations performed by the user for each time, setting information 34 and output prediction information 35 described later.

  FIG. 4 is a flowchart showing an input operation performed in the virtual desktop system 10 shown in FIGS. In this operation, the output prediction units 22 and 32 on each side of the server device 11 and the client device 12 mutually exchange output prediction information 25 and 35, which are information necessary for output prediction, and are always performed by the user. It is premised that the same output content prediction result is output for each possible operation.

  Here, the output prediction information 25 and 35 are information on, for example, the user's desktop screen, the file configuration of the personal data folder that the user frequently operates, and the screen transition of the application software used by the user. The output predicting units 22 and 32 exchange these pieces of information in advance, so that it is possible to output the same output content prediction results for the operations that can be performed by the user.

  For example, when a user starts up and uses a specific application software, the menu bar, operation buttons, etc. of that application software are all displayed. Is displayed in the output prediction. However, for application software that has not been started, such information is not required at all.

  Accordingly, when the user activates specific application software, both the output prediction units 22 and 32 read common information related to the screen transition of the application software from the output prediction information 25 and 35. Further, when the user accesses a specific data folder, directory information of the folder and the vicinity thereof (one level upper layer or one level lower layer) is read.

  Further, it is also assumed that the timeline information 33 can store the operation content for a time sufficiently exceeding the propagation delay for the round trip between the server and the client. Then, when the output prediction and the actual output are different from each other, the setting as to which of the following operation modes is performed in advance is performed in both the server device 11 and the client device 12, and the contents are set information 24. And 34 are stored in advance.

  The “each operation mode” here refers to the client device 12 after the time point when the difference is detected when the server device 11 detects that the actual processing result and the output prediction result are different. The server apparatus 11 “discards” or “accepts all” the operation input made on the side.

  First, when a user who operates the client device 12 performs an operation input through the input unit 12e (step S101), the input / output management unit 31 responds to the operation input with the input content and the operation. The performed date and time are stored in the timeline information 33 (step S102), and the input content and date and time are transmitted to the server device 11 (step S103). Then, the output prediction unit 32 predicts an output result that will be returned from the server device 11 in response to the input, and presents the prediction result to the output unit 12d (step S104).

  In the server device 11, the virtual desktop operation unit 21 performs processing (actual processing) according to the input content received from the client device 12 (step S 111), and in parallel with this, the output prediction unit 22 performs the processing on the input content. The output result that will be returned is predicted (output prediction, step S112). Then, the output comparison unit 23 compares the result of actual processing and the result of output prediction, and determines whether or not they match (step S113). If they match, the operation is continued as it is, and the screen contents of the virtual desktop including the matched processing result are transmitted (step S114). At this stage, if a notification for the user, which will be described later, is included in the output screen, the content is not included.

  When the result of the actual processing is different from the result of the output prediction, the output comparison unit 23 first confirms the operation mode with reference to the setting information 24 (step S115). In the “accept all” operation mode, contents including a notification for the user such as changing the color of a part of the screen are added to the output screen of the virtual desktop operation unit 21 (step S116), and the process proceeds to step S114. Then, the screen contents of the virtual desktop including the notification information indicating the fact are transmitted to the client device 12. The contents of the notification for users referred to individually will be described later.

  In the case of the “discard” operation mode in step S115, the output screen by the virtual desktop operation unit 21 is returned (step S117) until the target operation having the notification information is performed, and the output prediction unit 22 is reset once. To “no operation input” (step S118). Then, the process proceeds to step S116 to add contents including a notification for the user to the output screen, and the process proceeds to step S114 to transmit the screen contents of the virtual desktop including the notification information indicating that to the client apparatus 12.

  The above operation is continued until the actual processing and the output prediction match. If they match, the output screen by the virtual desktop operation unit 21 returns to the content that does not include the above-described user notification added in step S116.

  In the client device 12, the input / output management unit 31 displays the screen content of the virtual desktop transmitted in step S114 (step S105). After that, the input / output management unit 31 refers to the setting information 34 and confirms the operation mode (step S106). In the “accept all” operation mode, the operation ends there, and the next input operation is awaited.

  In the case of the “discard” operation mode in step S106, the input / output management unit 31 returns the display screen to a time point immediately after the operation targeted for the notification information is performed (step S107). Then, the output predicting unit 32 is reset to a “no operation input” state (step S108), the operation is terminated, and the next input operation is awaited. In other words, in the “discard” operation mode, the output prediction for the next input operation is performed in the “no input” state in both the server apparatus 11 and the client apparatus 12.

  The notification information sent from the server apparatus 11 also includes information indicating what operation was performed on the client apparatus 12 at what date and time when the phenomenon in which the actual processing result and the output prediction result differ started. It is. Upon receiving this notification information, the client device 12 side can identify the operation with reference to the timeline information 33 and return the display screen to the state immediately after the operation in the operation of step S107 described above.

  FIG. 5 is an explanatory diagram showing an example of a notification for the user added to the output screen by the virtual desktop operation unit 21 in the operation of step S116 of FIG. FIG. 5A shows an example of a normal output screen that does not include a notification for a user, and FIG. 5B shows an example of an output screen that includes a notification for a user.

  As shown in FIG. 5A, the normal output screen 150 output to the client device 12 by the virtual desktop operation unit 21 is changed to the actual output 151 indicating the output screen state of the actual processing, and the output screen state of the output prediction. It is the screen of the state where the expected output 152 which shows this is piled up. On the other hand, the output screen 160 shown in FIG. 5B when the result of the actual processing and the result of the output prediction are different is a screen in which the actual output 161 and the predicted output 162 are overlapped. Further, for example, a user notification 163 for notifying the user of the difference is overlapped by changing a color of a part of the screen, or putting a mark such as a red circle on a part of the screen. In FIG. 5, the user notification 163 is expressed by “marking a part of the screen”.

  FIG. 6 is an explanatory diagram showing a relationship between an input operation and an output corresponding thereto in the virtual desktop system 10 shown in FIGS. In this virtual desktop system 10, if an input operation is performed on the client device 12, the output prediction unit 32 immediately displays the result of the output prediction for the input operation to the user. Can be done.

  If this input operation is repeated, the input operation is performed on the client device 12 side by many operations before the actual processing actually performed on the server device 11 side. Therefore, when actual processing with content different from the normal screen transition used for output prediction is performed (specifically, what processing is performed will be described later), etc. And output prediction may differ.

  The process by the output predicting unit 22 of the server device 11 detects such a state. Consider a case in which an input operation has occurred and preceded the actual process based on an expected output different from the actual process.

  In the “accept all” operation mode of the setting information 24 and 34 described above, those input operations themselves are almost always legitimate operations that can be executed even if they are different from the actual processing. (For example, when the operation is physically impossible, such as when the storage capacity of the disk drive is full, etc.) Is.

  On the other hand, in the “discard” operation mode, no operation different from the actual processing is allowed, so that the operation mode is suitable for applications requiring a strict and reliable input operation such as accounting input.

(Overall operation of the embodiment)
Next, the overall operation of the above embodiment will be described.
The input method according to the present embodiment is in a virtual desktop system 10 configured by connecting a server apparatus 11 and a client apparatus 12 to each other, and an input / output management unit of the client apparatus performs a user operation on a virtual desktop screen. The input is transmitted to the server device (FIG. 4, steps S101 to S103), and the virtual desktop operation unit of the server device generates a virtual desktop screen as an output result for this operation input and transmits it to the client device (FIG. 4, FIG. 4). In steps S111 and 114), the output prediction unit of the client device predicts the output result of the virtual desktop operation unit for this operation input, and the input / output management unit of the client device displays the prediction result of the output prediction unit to the user. (FIG. 4, step S104), the operation input is continuously accepted.

  Further, the output prediction unit of the server device predicts the output result by the virtual desktop operation unit with respect to the operation input received from the client device (step S112 in FIG. 4), and the output comparison unit of the server device performs the actual operation by the virtual desktop operation unit. The processing result and the prediction result by the output prediction unit are compared (step S113 in FIG. 4), and if a difference is detected between the actual processing result and the prediction result, the virtual desktop operation unit of the server device indicates that fact. A notification for the user is added to the virtual desktop screen (FIG. 4, step S116) and transmitted to the client device (FIG. 4, step S114).

Here, each of the above operation steps is programmed to be executable by a computer, and these are executed by the processor 11a of the server device 11 and the processor 12a of the client device 12 which are processors that directly execute the respective steps. It may be. The program may be recorded on a non-temporary recording medium, such as a DVD, a CD, or a flash memory. In this case, the program is read from the recording medium by a computer and executed.
By this operation, this embodiment has the following effects.

  According to the present embodiment, it is possible to continue the operation input on the client device side even if the virtual desktop screen from the server device does not return for the input operation from the client device. That is, the operability of the virtual desktop system can be improved even in an environment with a transmission delay. Here, even if a difference occurs between the actual processing result and the prediction result, the processing can be continued without causing any particular problem in the actual processing result.

  The output prediction unit 32 of the client device 12 here is most ideally the operation of the virtual desktop operation unit 21 of the server device, that is, the operation of the single computer device (standalone) shown in FIG. It becomes the same form. If that is the case, the meaning of operating on the virtual desktop will disappear.

  Therefore, the output predicting unit 32 of the client device 12 reads only the elements necessary for the input / output from the output predicting information 35 according to the contents operating in the virtual desktop operating unit 21 of the server device, thereby outputting the output. Make a prediction. When specific application software is used in the virtual desktop, it is only necessary to have information about screen transitions due to the normal operation of the application software, and no information about application software that is not operating is necessary.

  In this case, as a case where a difference may occur between the actual processing result and the prediction result, for example, while the server device 11 is writing data to a storage medium such as a disk drive (physical storage medium). In many cases, such as when an error occurs (by a factor) or when a malicious program such as a computer virus or worm is found (by a resident anti-virus program), it is caused by factors other than the input operation from the client device 12. It is what happens.

  Therefore, the output prediction units 22 and 32 on each side of the server device 11 and the client device 12 always generate the same output content prediction results for operations that can be performed by the user based on the same output prediction information 25 and 35. It only has to be something that can be put out. If output prediction is performed by the same routine from the same output prediction information, for example, the server device 11 is UNIX (registered trademark) and the client device 12 is Windows or Android (both are registered trademarks). The operating system (basic software) may be different.

  The present invention has been described with reference to the specific embodiments shown in the drawings. However, the present invention is not limited to the embodiments shown in the drawings, and any known hitherto provided that the effects of the present invention are achieved. Even if it is a structure, it is employable.

  The present invention can be used when a virtual desktop system is constructed, particularly in an environment where there is a propagation delay between a server and a client.

1, 10 Virtual desktop system 2, 11 Server device 2a, 21 Virtual desktop operation unit 3, 12 Client device 3a, 31 Input / output management unit 3b, 22, 32 Output prediction unit 11a, 12a Processor 11b, 12b Storage means 11c, 12c Communication means 12d Output means 12e Input means 13 Network 23 Output comparison unit 24, 34 Setting information 25, 35 Output prediction information 33 Timeline information 150, 160 Output screen 151, 161 Actual output 152, 162 Expected output 163 Notification for user

Claims (8)

A server device that is connected to a client device and constitutes a main part of a virtual desktop system,
A virtual desktop operation unit that receives a user operation input from the client device, generates a virtual desktop screen as an output result for the user, and transmits the virtual desktop screen to the client device; and an output for predicting the output result for the user operation input A prediction unit, and an output comparison unit that compares the actual processing result by the virtual desktop operation unit and the prediction result by the output prediction unit,
A function that operates when a difference is detected between the actual processing result and the prediction result, and the virtual desktop operation unit adds a notification for the user indicating that to the virtual desktop screen and performs transmission processing. And a server device. A virtual desktop system configured by connecting a server device and a client device to each other,
The server device according to claim 1 is installed as the server device.
The client device transmits a user operation input to the virtual desktop screen to the server device, and displays the virtual desktop screen as an output result sent from the server device to the user. I / O management unit
The client device further includes an output prediction unit that predicts the output result of the virtual desktop operation unit with respect to the user's operation input,
The virtual desktop system, wherein the input / output management unit of the client device has a function of continuously accepting an operation input based on a prediction result by the output prediction unit on the client side. The virtual desktop system according to claim 2,
The server device operates when a difference is detected between the actual processing result and the prediction result, and operates the virtual desktop operation unit to discard the operation input after the occurrence of the difference; And a function of issuing notification information to the client device,
The input / output management unit of the client device that has received the notification information has a function of displaying to the user the virtual desktop screen immediately before the discarded operation input is made. . The virtual desktop system according to claim 3.
The output prediction unit of the client device operates when receiving the notification information, and has a function of predicting the output result again assuming that there is no operation input from a state immediately before the discarded operation input is made. Virtual desktop system characterized by The virtual desktop system according to claim 3.
After the virtual desktop operation unit of the server device detects a difference between the actual processing result and the prediction result, the output comparison unit of the server device performs a process between the actual processing result and the prediction result. The virtual desktop system is provided with a function of performing a transmission process after removing the notification for the user from the virtual desktop screen, when the difference is not detected again. The virtual desktop system according to claim 3.
Even if a difference is detected between the actual processing result and the prediction result, the virtual desktop operation unit of the server device outputs the output without discarding the operation input after the occurrence of the difference. A virtual desktop system having a function of generating and processing the resulting virtual desktop screen. In a virtual desktop system configured by connecting a server device and a client device to each other,
The input / output management unit provided in the client device transmits a user operation input to the virtual desktop screen to the server device,
The virtual desktop operation unit which the server device is equipped with, is generated and transmitted to the virtual desktop screen as the output result of the operation input to the client device,
The output prediction unit of the client device predicts the output result by the virtual desktop operation unit for this operation input,
The input / output management unit of the client device continuously allows the operation input while displaying a prediction result by the output prediction unit of the client device to the user ,
The output comparison unit of the server device compares the actual processing result by the virtual desktop operation unit and the prediction result by the output prediction unit,
It operates when a difference is detected between the actual processing result and the prediction result, and the virtual desktop operation unit of the server device adds a notification for the user indicating it to the virtual desktop screen and An input information processing method characterized by transmitting to a client device . A virtual desktop system in which a server device including a virtual desktop operation unit that generates and transmits a virtual desktop screen and a client device that transmits a user operation input to the virtual desktop screen to the server device are connected to each other. There,
Transmission processing function of transmitting to the client device to generate the virtual desktop screen as the output result of the operation input by the user,
A prediction processing function for predicting an output result for the operation input received from the client device;
A comparison processing function for comparing the actual processing result by the procedure for generating the virtual desktop screen and the prediction result by the procedure for predicting the output result;
If a difference is detected between the actual processing result and the prediction result, an additional transmission processing function is added to the client device by adding a notification for the user indicating the difference to the virtual desktop screen,
An input information processing program characterized in that a computer is realized.

Images