JP2006018835A - Network system and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an undesired process such as a screen shutter function from being operated at undesired timing and to ensure the security of display data when an operator leaves his or her desk. <P>SOLUTION: A distance to an operator is measured by a distance sensor 28, and when the distance is in a separating direction on the basis of a predetermined distance D<SB>2</SB>, a CPU 10 executes a screen shutter process of a display device 14; and the CPU executes a screen release process of the display device 14 when the distance is in an approaching direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a data processing device that provides a screen shutter function, a network system in which a plurality of such data processing devices are connected, and a recording medium that stores a program for operating a personal computer as such a data processing device. .

  Conventionally, a screen saver function for stopping display (displaying black on the entire screen) when there is no input from a keyboard or the like for a certain period of time is known in order to prevent burning of the display of a computer or the like. In recent years, the display performance has been improved, and the screen saver has moved from a simple black screen display to an animated display such as an animation display. Furthermore, recently, as a so-called energy saving measure, the screen saver has shifted to a function called a screen shutter that turns off the display.

  In addition, the screen lock function is activated when there is no input from the keyboard, etc. for a certain period of time. After that, when an input from the keyboard, etc. occurs, the password entry screen is displayed. The function is also known.

  However, in the conventional screen saver function and screen shutter function, since the input from the keyboard or the like is a device that operates when there is no predetermined time, even when the operator needs to keep watching the monitor, As time runs out, the operator must move the mouse or press a key (such as a shift key) that is not actually entered from the keyboard to release the screen saver or screen shutter function. It was. In addition, since these functions operate regardless of the contents of the application or document, inconveniences such as a mere obstructive function have been met.

On the other hand, there are the following problems from the viewpoint of security.
That is, when the operator leaves the seat, the screen saver function and the screen shutter function work to hide the contents of the document being worked on. However, anyone can perform these functions by performing input work such as key entry. Since it can be canceled, it is possible for a person other than the operator who has used the computer to cancel the display, and there is no display security.

  This can be prevented by asking for a password at the time of release, but with the conventional function of judging only by the elapsed time regardless of the operator's will as described above, even when the operator leaves the seat. It will not operate until a preset time has passed, so if you leave your seat while displaying data that cannot be seen by others (you cannot see it), the display data until the specified time has passed There is no.

  An object of the present invention is to prevent an undesired process such as a screen shutter function from being activated at an undesired timing and to ensure the security of display data when an operator leaves the desk.

The means of the invention of claim 1 is as follows.
The distance measuring unit measures the distance to the operator.
The distance change determination means determines whether the change in distance measured by the distance measurement means is a direction away from or a direction approaching with a predetermined distance as a reference.
The process execution unit executes a predetermined process defined in advance according to the determination result by the distance change determination unit.

The means of the invention of claim 9 is as follows.
The computer-readable recording medium stores a program including instructions that cause the computer to execute the following processing when the operator uses the computer.
The first process is a process for measuring the distance to the operator.
The second process is a process of determining whether the change in the measured distance is a direction away from or approaching a predetermined distance.
The third process is a process for executing a predetermined process corresponding to the determination result.

The operation of the means of the invention of claim 1 and claim 9 is as follows.
The distance to the operator is measured to determine whether the change in the measured distance is a direction away from or in a direction approaching the predetermined distance, and a predetermined process according to the determination result, for example, leaving If the direction is the screen shutter process, the screen shutter process is executed. If the direction is closer, the screen shutter release process is executed.
Therefore, undesired processing such as the screen shutter function is not activated at an undesired timing, and security of display data can be ensured when the operator leaves the desk.

The means of the invention of claim 6 is as follows.
A network system in which a plurality of computers are connected by a network, and the operator identifying means identifies an operator who is using the computer in each computer.
The processing status storage means stores the data processing status in the computer by the operator identified by the operator identifying means when the operator who is using the computer is separated from each computer by a predetermined distance.
The processing status transfer means is configured to identify an operator by the operator identification means when any operator gets closer to any computer than the predetermined distance, and the operator stored in the processing status storage means performs the processing. The data processing status that has been transferred is transferred to the computer that the operator has approached.

The means of the invention of claim 10 is as follows.
The computer-readable recording medium stores a program including instructions for causing a computer to execute the following processing when a plurality of operators use each computer in a network system in which a plurality of computers are connected via a network.
The first process is a process for identifying an operator who is using the computer in each computer.
The second process is a process of storing the data processing status in the computer by the identified operator when the operator who is using the computer is separated from each computer by a predetermined distance.
In the third process, when any operator gets closer to any computer than the predetermined distance, the operator is identified by the process for identifying the operator, and the data stored by the operator is stored. This is a process of transferring the processing status to a computer that the operator has approached.

The operation of the means of the invention of claims 6 and 10 is as follows.
In a network system in which a plurality of computers are connected by a network, an operator using the computer is identified in each computer, and when the operator using the computer is separated from each computer by a predetermined distance, the identified operator is identified. The data processing status in the computer is stored, and when any operator approaches any computer more than the predetermined distance, the operator is identified and the stored operator performs The data processing status is transferred to the computer approached by the operator.
Accordingly, in a system in which a plurality of computers are connected via a network, when a predetermined operator executes processing on one computer and the operator resumes processing on another computer on the network during the processing, the previous computer You can now execute the process by taking over the contents that were processed in.

  According to the first and ninth aspects of the present invention, it is possible to prevent an undesired process such as a screen shutter function from being activated at an undesired timing, and to secure display data when the operator leaves. Can be secured.

  According to the sixth and tenth aspects of the present invention, in a system in which a plurality of computers are connected by a network, the processing is executed by one computer with a predetermined operator, and the operator is in the middle of the processing, When the process is resumed by the computer, it becomes possible to execute the process by taking over the contents processed by the previous computer as it is.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a diagram showing the configuration of a personal computer to which the data processing apparatus according to the first embodiment of the present invention is applied. Reference numeral 10 in the figure is a CPU as a control unit for controlling the entire personal computer. It is. Reference numeral 12 denotes an input device such as a keyboard and a mouse, and reference numeral 14 denotes a display device such as a CRT. Reference numeral 16 denotes a storage device such as a hard disk or ROM, and reference numeral 18 denotes a RAM.

  Reference numeral 20 denotes a storage medium control unit that controls data storage and reading with respect to a storage medium 22 such as a mounted floppy disk or optical (magnetic) disk, and reference numeral 24 denotes a communication line (wired or wireless). ) 26 is a communication control unit that transmits and receives data to and from the outside.

  The storage device 16 or the storage medium 22 stores in advance processing programs, data, and the like that cause the personal computer executed by the CPU 10 to operate as a data processing device. Programs, data, and the like stored in the device 16 or the storage medium 22 are received from another device connected via the communication line 26 or the like by the communication control unit 24 (for example, in a work memory (not shown) provided in the RAM 18). Further, a storage device or a storage medium may be provided on the other device connected via the communication line 26 or the like, and the program and data stored therein may be used via the communication line 26. You may make it the structure to carry out.

  Reference numeral 28 is a distance sensor that measures the distance between the personal computer and the operator using reflected light such as infrared rays. In the present embodiment, as shown in FIG. 2A, the distance sensor 28 is arranged on the display device 14 to measure the distance between the display screen and the operator.

Next, the operation in such a configuration will be described.
FIG. 3 is a flowchart for explaining the operation of the data processing apparatus according to the first embodiment of this invention. A program for realizing each function described in this flowchart is stored in the storage device 16 or the storage medium 22 in the form of a program code readable by the CPU 10.

First, as an initial setting, a stay flag (not shown) configured in the CPU 10 or the RAM 18 is turned on (step S10).
Then, it is determined whether or not the input device 12 such as a keyboard or a mouse is operated (step S12). If there is any operation, a process corresponding to the operation is executed (step S14), and the process returns to step S12.

  On the other hand, if the input device 12 is not operated, it is next determined whether or not there is an open file (step S16). If there is no open file, the process returns to step S12. When there is an open file, referring to a screen setting table 18A previously set by the operator in the RAM 18 as shown in FIG. 2B, the screen setting of the application using the open file is made. Is determined (step S18). If the application has not been set on the screen (if not set), the process returns to step S12.

If the screen is set (set), then the distance to the operator is measured by the distance sensor 28 (step S20). Here, in the normal use state, the distance between the display screen and the operator is in the range of D ₁ (for example, 20 cm) to D ₂ (for example, 1 m) shown in FIG. Therefore, it is determined whether or not the operator has left the seat by determining whether or not the measured distance is equal to or greater than D ₂ (step S22).

If the operator does not unattended determines if the stay flag to determine if OFF (step S24), and if on, the distance was further the measurement is less than D ₃ (step S26). Here, as shown in FIG. 2C, the distance D ₃ is 10 cm in the present embodiment, which is not taken in the normal use state, and the operator must approach with will. This is an unobtainable distance. If the measurement distance is not less than D ₃ , that is, if it is a normal use situation, the process returns to step S 12.

And Thus, in step S22, the measurement distance is when it is determined that D ₂ or more words operator unattended, said stay flag to determine whether ON (step S28). If it is determined that the flag is on, the stay flag is turned off (step S30), screen shutter processing for turning off the power of the display device 14 is performed (step S32), and then the process goes to step S12. Return.

Then, if left operator unattended, the measurement distance is determined in step S22 When it is D ₂ or more, stay flag is determined to be off at step S28. In this case, since there is no need to change the state, the process returns to step S12.

On the other hand, come back operator approaches to the distance D _2, the measured distance is determined not to be a D ₂ or more in step S22, the process proceeds to step S24. Since the stay flag is turned off in step S30, it is determined that it is turned off in step S24. In this case, the stay flag is turned on (step S34), a screen shutter release process for turning on the power of the display device 14 is performed (step S36), and the process returns to step S12.

Further, when the measured distance in the step S26 is determined to be less than D _3, for example, after executing a predetermined processing other than the screen shutter process of updating saved processing of file data in the active Windu (step S38), The process returns to step S12.

  As described above, in the first embodiment, the distance with the operator is measured by the distance sensor 28, whether the distance is a direction away from or closer to the predetermined distance, and the measurement result is determined. By executing predetermined processing, for example, screen shutter processing and screen release processing, it is possible to prevent an undesired process such as a screen shutter function from being activated at an undesired timing and to leave the operator. In this case, it is possible to ensure the security of the display data.

  In the first embodiment, by setting a plurality of the predetermined distances, in addition to the process of hiding the display data, another process such as an active window file data update saving process is performed. It is possible to make it.

  The predetermined process when the operator is away from the predetermined distance is not limited to the screen shutter process, and other processes such as a screen saver process, a window minimization process, an iconization process, etc. It may be. In this case, the predetermined process in the case where the operator is approaching with respect to the predetermined distance also corresponds to other processes such as a screen saver cancel process, a window minimization cancel process, an iconification cancel process, and the like. Of course, it becomes processing.

  In step S36, the screen shutter release process may be performed only when a password is requested and an accurate password is input, instead of unconditionally performing the screen shutter release process.

  Furthermore, it is possible to weight the application and the work content that is being activated and to distinguish the action to be taken when the operator leaves the desk. For example, an importance level is set in advance for each application, and depending on the importance level, various measures such as a simple screen shutter function, a keyboard lock function (only reference is allowed and input is not possible), or a screen shutter with a password, etc. Is possible.

Next, a second embodiment of the present invention will be described.
In this embodiment, as shown in FIG. 2D, in a situation where a plurality of personal computers (PC1, PC2, PC3,...) And a server are connected via a network such as a LAN, A folder for each operator for saving the environment file and the work file is provided. Here, the environment file saves the display form, window order, previous work position (where and which page of which window was displayed, and where the cursor was specified, etc.). Saves all open files.

  Each PC is applied with a data processing apparatus having the same configuration as that of the first embodiment, and the CPU 10 of each PC performs an operation as shown in FIG. However, in the present embodiment, each operator has an ID card or the like for identifying itself, and by embedding a transmitter or the like in this and transmitting an ID or the like, the distance sensor 28 transmits its transmission signal. The distance to each operator can be measured based on the strength of.

Thus, when the operator approaches the PC and approaches, for example, the distance D ₂ , the distance sensor 28 detects it and notifies the CPU 10 of this fact. In response to this, the CPU 10 turns on the main power of the PC (step S40), recognizes the ID received by the distance sensor 28, and uploads the folder corresponding to the ID from the server to the storage device 16 (step S42). ).

Then, it is determined whether or not any operation has been performed from the input device 12 such as a keyboard or a mouse (step S44). If there is no operation, it is determined whether or not the distance from the operator is D ₂ or more (step S46). Unless D ₂ or more, the routine returns to step S44, also when the D ₂ or more, it is determined that the operator went away, off the main power of the PC (step S48), the process ends.

  On the other hand, if any operation is performed, the previous screen displayed by the operator on another PC is restored and displayed on the display device 14 by the environment file and the work file in the folder uploaded to the storage device 16. (Step S50). Thereafter, it is determined whether or not the input device 12 is operated (step S52). If there is any operation, a process corresponding to the operation is executed (step S54), and the process returns to step S52.

On the other hand, when there is no operation of the input device 12, next, the distance with the operator is measured by the distance sensor 28 (step S56), and it is determined whether or not the measured distance is D ₂ or more. Thus, it is determined whether or not the operator has left (step S58). If the operator is not away, the process returns to step S52.

On the other hand, when it is determined that the measurement distance is equal to or greater than D _2, that is, the operator has left the office, the environment file and work file stored in the storage device 16 are updated (step S60), and they are stored in the server. Is downloaded to the folder corresponding to the operator (step S62). Thereafter, the process proceeds to step S48, the main power supply of the PC is turned off, and the process ends.

  As described above, in the second embodiment, when the operator leaves the office, the work state is stored in the server, so that the operator can move to any PC without being particular about the specific PC. The work can be started from the previous state.

  Also, when the operator leaves the office, if the work state is saved in the server, the PC that has been left is turned off, so the display data displayed before leaving the seat is the third party. Never seen. In this case, the working state is stored in the storage device 16, but when another person tries to use the PC, an environment file and a working file corresponding to the person's ID are uploaded. Since the display on the display device 14 is started after being rewritten, the work data of the previous operator cannot be seen. As described above, when the operator leaves the PC in the middle of processing, screen security works, so that the security of display data can be ensured when the operator leaves.

  Alternatively, the environment file and the work file may be uploaded directly from the storage device 16 of the PC before the movement without being downloaded to the server.

  Further, it is more preferable in terms of security if the environment file and the work file stored in the storage device 16 are deleted after downloading to the server in step S62.

  Furthermore, the second embodiment can be applied not only to a PC connected via a LAN but also to a portable information terminal. That is, this security function can also be realized by so-called mobile computing.

It is a block block diagram of the personal computer to which the data processing apparatus of the 1st Embodiment of this invention was applied. (A) is a diagram showing the installation status of the distance sensor in FIG. 1, (B) is a diagram showing the configuration of a screen setting table provided in the RAM in FIG. 1, (C) is a diagram of the display device in FIG. It is a figure for demonstrating the distance range of a display screen and an operator, (D) is a figure which shows the structure of the network system to which the data processor of the 2nd Embodiment of this invention was applied. It is a flowchart for demonstrating operation | movement of 1st Embodiment. It is a flowchart for demonstrating operation | movement of 2nd Embodiment.

Explanation of symbols

10 CPU
12 Input device 14 Display device 16 Storage device 18 RAM
18A Screen setting table 20 Storage medium control unit 22 Storage medium 24 Communication control unit 26 Communication line 28 Distance sensor

Claims (10)

Distance measuring means for measuring the distance to the operator;
Distance change determining means for determining whether the change in distance measured by the distance measuring means is a direction away from or approaching a predetermined distance;
A process execution means for executing a predetermined process according to a determination result by the distance change determination means;
A data processing apparatus comprising:   The process execution means performs a screen security process for prohibiting display of data that the operator has worked as the predetermined process when the distance change determination means determines that the distance change direction is a direction away from the distance change direction. The data processing apparatus according to claim 1.   When the distance change determining means determines that the distance change direction is closer to the distance change direction, the process executing means performs a screen security release process for returning the display of the prohibited data as the predetermined process. The data processing apparatus according to claim 2, wherein the data processing apparatus performs the processing. The distance change determination means performs the determination processing on the basis of a plurality of distances as the predetermined distance,
The processing execution means defines individual processing corresponding to each of the plurality of distances, and executes the corresponding processing according to the determination result for each distance by the distance change determination means. Item 4. The data processing device according to Item 1. It further comprises application definition means for defining for each application whether or not to perform the predetermined processing by the processing execution means,
The data processing apparatus according to claim 1, wherein the process execution unit determines whether to execute the predetermined process for the currently opened application according to the definition in the application definition unit. A network system in which multiple computers are connected via a network,
Operator identification means for identifying an operator using the computer in each computer;
A processing status storage means for storing a data processing status in the computer by the operator identified by the operator identifying means when an operator using the computer is away from a predetermined distance from each computer;
When any operator gets closer to any computer than the predetermined distance, the operator identifying means identifies the operator, and the data processing status performed by the operator stored in the processing status storage means is displayed. , Processing status transfer means for transferring to the computer approached by the operator;
A network system comprising:   7. The network system according to claim 6, wherein each operator is identified by the operator identification means using an ID card owned by each operator.   7. The network system according to claim 6, further comprising screen security means for causing the computer to perform screen security processing when the operator is away from the computer being processed by the predetermined distance. When an operator uses a computer,
Processing to measure the distance to the operator;
A process for determining whether the change in the measured distance is a direction away from or approaching a predetermined distance;
A process of executing a predetermined process defined in advance according to the determination result;
The computer-readable recording medium which stored the program containing the instruction | indication which makes a computer perform. When multiple operators use each computer in a network system where multiple computers are connected by a network,
A process for identifying an operator using the computer in each computer;
When an operator who is using the computer from each computer is away from a predetermined distance, a process for storing the data processing status in the computer by the identified operator;
When any operator gets closer to any computer than the predetermined distance, the operator is identified by the process of identifying the operator, and the stored data processing status performed by the operator is displayed. Transfer to the computer that is approaching,
The computer-readable recording medium which stored the program containing the instruction | indication which makes a computer perform.

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