JP2015049739A - Information processing device capable of limiting operation, operation limiting method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing device suitable for controlling environment peculiarity and security strength and capable of limiting operation, and a method and program for limiting operation.SOLUTION: Provided is an information processing device comprising: a light-receiving unit for receiving visible light sent out from a visible light communication device, which superposes information for operation control at a prescribed time interval on visible light, and outputting the received light information; a control unit for analyzing the received light information outputted by the light-receiving unit and, when information for operation control is extracted, generating, on the basis of information for the operation control, an operation permission signal indicating that operation in the information processing device is permitted; a timer for measuring a prescribed time and, when the prescribed time expires, transmitting a prescribed time expired signal; and an operation control unit for resetting the timer upon receiving the operation permission signal generated by the control unit, releasing operation restriction when operation restriction for the information processing device is under way at the time of resetting, and executing operation restriction for the information processing device when the prescribed time expired signal is received from the timer.

Description

  The present invention relates to an information processing apparatus capable of operation restriction, an operation restriction method, and a program therefor.

  As an information processing apparatus, an apparatus that performs operation restriction according to a place is known. This apparatus specifies a place where the information processing apparatus exists, and performs operation restriction according to the place.

  An example of this type of device is described in Patent Document 1. The information processing apparatus described in Patent Literature 1 obtains position information before starting the system, and includes a security function corresponding to the position information. One of the specific security functions is not to start the system, and one of the positional information acquisition methods is visible light communication using a lighting fixture.

JP 2009-134595 A

  However, the technique described in Patent Document 1 mentioned above does not refer to providing a time condition for controlling the operation of the system with respect to acquisition of position information in visible light communication. Therefore, the technique described in Patent Document 1 does not consider the case where the visible light cannot be temporarily received in a specific environment where temporary visible light shielding may occur, and the area where the visible light cannot be received. There is a problem in that no consideration is given to the control of the operation restriction when moving to.

  An object of the present invention is to provide an information processing apparatus, an operation restriction method, and a program that can solve the above-described problems.

  An information processing apparatus according to an aspect of the present invention includes a light receiving unit that receives visible light transmitted from a visible light communication device that superimposes information for operation control on visible light at predetermined time intervals and outputs light reception information; Control for generating an operation permission signal indicating permission of operation in the information processing device based on the information for operation control when analyzing the light reception information output by the light receiving unit and extracting information for operation control And a timer that transmits a predetermined time expiration signal and an operation permission signal generated by the control unit when the predetermined time expires, the timer is reset, and the information processing device If the operation restriction is executed, the operation restriction is canceled, and when an expiration signal is received from the timer for a predetermined time, an operation control unit that executes the operation restriction of the information processing apparatus is included.

An operation limiting device according to an aspect of the present invention includes a light receiving unit that receives the visible light transmitted from a visible light communication device that superimposes information for operation control on visible light at predetermined time intervals and outputs light reception information. When the light reception information output by the light receiving unit is analyzed and information for operation control of the main processing device is extracted, an operation permission signal indicating permission of operation in the main processing device based on the information for operation control And a control unit for generating An operation restriction method according to an aspect of the present invention is a light reception unit that receives the visible light transmitted from a visible light communication device that superimposes information for operation restriction on visible light at predetermined time intervals, and outputs light reception information. ,
When the light reception information is analyzed and information for operation restriction is extracted, an operation permission signal indicating permission of operation in the information processing device is generated based on the information for operation restriction,
When the timer measures the predetermined time and expires, the predetermined time expiration signal is transmitted,
The timer is reset based on the operation permission signal, and if the operation restriction of the information processing device is executed, the operation restriction is released, and when the predetermined time expiration signal is received from the timer, the information processing device Execute the operation restriction.

The program according to one aspect of the present invention is such that the visible light transmitted from the visible light communication device that superimposes the information for operation control on the visible light at predetermined time intervals is received by the light receiving unit and the light receiving information is received. Processing for analyzing the received light information;
When extracting information for operation control, processing for generating an operation permission signal indicating permission of operation in the information processing device based on the information for operation restriction;
Processing to control the timer;
If the operation permission signal is received, the timer is reset, and if the information processing device operation restriction is executed, the timer is released. If the predetermined time expiration signal is received from the timer, the information processing device operation restriction is executed. Processing to
Is executed on the computer.

  According to the present invention, it is possible to obtain an effect that the operation limiting operation corresponding to the control of the specificity of the environment and the security strength is possible.

FIG. 1 is a diagram illustrating an example of an outline of a visible light communication system used by the information processing apparatus according to the first embodiment of the present invention. FIG. 2 is a block diagram illustrating a configuration of the information processing apparatus 300 including the operation restriction apparatus 100 and the main processing apparatus 200 according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating an example of a list of available information stored in the location information management unit 130 according to the first embodiment of the present invention. FIG. 4 is a diagram illustrating a hardware configuration in which the operation restriction device 100 and the main processing device 200 according to the first embodiment are realized by a computer device. FIG. 5 is a flowchart showing an outline of an operation for determining whether or not to permit the main processing device 200 operation in the operation restriction device 100 according to the first embodiment. FIG. 6 is a flowchart showing an outline of operation restriction execution and release operations in the main processing apparatus 200 according to the first embodiment. FIG. 7 is a block diagram showing the configuration of the information processing apparatus 301 that receives the encrypted position identification information in the modification of the first embodiment of the present invention. FIG. 8 is a block diagram showing a configuration of the information processing apparatus 302 that encrypts the operation permission signal in the modification of the first embodiment of the present invention. FIG. 9 is a block diagram illustrating a basic configuration of the information processing apparatus 303 according to the embodiment of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
First, an overview of a visible light communication system used by the information processing apparatus of the present invention will be described with reference to FIG. Referring to FIG. 1, visible light communication lighting devices A, B, and C in a visible light communication system respectively apply visible light on which position identification information A 1, B 2, and C 3 are superimposed as information for operation control. The area is irradiated. However, each area may be separated from each other. An information processing device 300 including the operation restriction device 100 and the main processing device 200 is located in the visible light area.

  The operation restriction device 100 receives visible light and extracts position identification information from the received light information. Further, the operation restriction device 100 generates an operation permission signal indicating permission of operation of the main processing device 200 based on the position identification information, and sends the operation permission signal to the main processing device 200. The main processing device 200 continues the operation by receiving the operation permission signal. When the operation permission signal cannot be received, the main processing device 200 is subjected to operation restrictions such as a keyboard or mouse operation stop.

  Here, it is assumed that the information processing apparatus 300 is set in advance to permit the operation only when the position identification information is A1 or B2. As a result, the main processing device 200 can continue to operate under the visible light communication lighting devices A and B, respectively, but under the visible light communication lighting device C, the main processing device 200 cannot continue the operation and the operation is restricted. receive. When the operation permission signal cannot be received, the main processing device 200 is subjected to the same operation restriction. Therefore, the main processing device 200 is visible even when it is moved to a place where there is no visible light communication illumination device or under the visible light communication illumination devices A and B. Even when light is blocked and the operation restriction device 100 cannot receive light, the main processing device 200 is subject to operation restriction. In addition, the operation restriction may be set in stages depending on which visible light is received. For example, when the information processing apparatus 300 receives the position identification information A1, all operations are permitted. However, when the position identification information B2 is received, only the mouse operation is stopped, and when the position identification information C3 is received. It is also possible to restrict operations such as stopping all input operations.

  FIG. 2 is a block diagram showing a configuration of the information processing apparatus 300 including the operation restriction apparatus 100 and the main processing apparatus 200 according to the first embodiment of the present invention. Referring to FIG. 2, the operation restriction device 100 includes a light receiving unit 110, a control unit 120, a location information management unit 130, and a communication unit 140. The main processing device 200 includes a communication unit 210, an operation impossibility control unit 220 (also referred to as an operation control unit), and a timer 230. The operation restriction device 100 is connected to the main processing device 200 via a communication cable. The communication standard is, for example, USB communication. In the present invention, the operation restriction device 100 may be built in the main processing device 200.

  Next, the configuration of the operation restriction device 100 and the main processing device 200 in the first embodiment will be described.

  The light receiving unit 110 is visible light that superimposes position identification information (A1, B2, or C3) on visible light at a predetermined time interval, that is, visible light transmitted from the visible light communication illumination device (A, B, or C) shown in FIG. Light is received and light reception information is output to the control unit 120. In the visible light communication illumination device, a period of a predetermined time interval in which the position identification information is superimposed on the visible light is T1 time. The position identification information is information that expresses the visible light transmitted from which visible light communication device by using characters such as numbers and alphabets, symbols, and the like.

  The control unit 120 analyzes the received light reception information and extracts position identification information. Further, the control unit 120 accepts usable information corresponding to the position identification information from the positional information management unit 130, and determines whether or not to permit the operation of the main processing device 200 based on the usable information (permission and restriction). As shown in FIG. 3, the available information is information that predetermines an operation to be permitted and an operation to be restricted among a plurality of operations of the main processing device 200 corresponding to each position identification information. Yes, the position information management unit 130 stores each piece of position identification information as a list. As long as this correspondence is clearly indicated, the stored form may not be a list. Referring to FIG. 3, the operations that should be permitted or restricted include keyboard operations, mouse operations, power switch operations, and network transmission / reception operations, but are not limited thereto. In the case of operation permission, the control unit 120 transmits an operation permission signal indicating permission of operation to the operation disabling control unit 220 of the main processing device 200 via the communication unit 140.

  Note that the control unit 120 may transmit the operation permission signal to the main processing apparatus 200 not only when the operation is permitted but also when the operation is restricted. In this case, it is desirable that the operation permission signal includes information indicating an operation to be permitted and an operation to be restricted.

  In addition, the visible light transmitted from the visible light communication lighting device is limited to the operation permission information (the operation to be permitted) of the main processing device 200 instead of the position identification information as other information for operation control. Operation information) itself may be included. In this case, the operation restriction device 100 does not require the position information management unit 130. For example, the usable information as shown in FIG. 3 is stored in a storage unit (not shown) on the visible light communication system side, and the visible light communication system reads the usable information from the storage unit as information indicating whether or not the operation is permitted. You may superimpose on visible light. Then, the control unit 120 analyzes the operation permission information of the main processing device 200 from the received light reception information, and when the operation is permitted, the operation permission signal is sent to the operation disabling control unit 220 of the main processing device 200 via the communication unit 140. Send. However, as shown in FIG. 2, when the location identification information is used and the location information management unit 130 is provided, it is possible to individually set operations to be permitted and restricted by using different available information for each information processing apparatus. There is.

  The location information management unit 130 stores a list of available information corresponding to the location identification information, and returns the corresponding available information to the control unit 120 when the location identification information is input from the control unit 120.

  The communication unit 140 of the operation restriction device 100 and the communication unit 210 of the main processing device 200 communicate by connecting the operation restriction device 100 and the main processing device 200 through, for example, a USB connection.

  In the main processing device 200, the operation impossibility control unit 220 resets the timer 230 when receiving an operation permission signal from the operation restriction device 100 via the communication unit 210. If the operation of the main processing device 200 that should be permitted by the operation permission signal is restricted at the time of the timer reset, the operation disabling control unit 220 releases the operation restriction. In addition, when the timer 230 finishes measuring the predetermined time and receives a predetermined time expiration signal from the timer, the operation disabling control unit 220 performs an operation on the operation of the main processing device 200 that should be permitted by the operation permission signal. Enforce restrictions. The operation restriction executed here includes, for example, a keyboard operation stop of the main processing device 200, a mouse operation stop, a switch operation stop, a network transmission / reception stop, and a display screen display lock process. Any one or two or more operation restrictions.

  The timer 230 measures a predetermined time, and when the predetermined time expires, the timer 230 transmits a predetermined time expiration signal to the operation impossible control unit 220. The predetermined time measured by the timer 230 is defined as T2 time. The T2 time is set longer than the period T1 of a predetermined time interval in which the visible light illumination device superimposes the position identification information (or operation permission information) on the visible light. Accordingly, the timer 230 does not transmit a predetermined time expiration signal to the operation disabling control unit 220 while the operation restriction device 100 receives visible light, and an operation based on the operation permission signal can be performed during that time. Further, according to the present embodiment, even if the main processing device 200 cannot temporarily receive the visible light that superimposes the position identification information on the visible light, while the timer is operating (before the reset), the operation permission signal Can be operated in a state where the operations that should be permitted are not restricted. It is desirable that the set time of the timer 230 can be arbitrarily changed according to environmental changes or security strength.

  The main processing device 200 includes a processing circuit for information processing in addition to the communication unit 210, the operation impossibility control unit 220, and the timer 230, but is omitted in this embodiment and FIG.

  One or all elements of the operation restriction device 100 may be included in the main processing device 200.

  FIG. 4 is a diagram showing a hardware configuration in which the operation restriction device 100 and the main processing device 200 according to the first embodiment of the present invention are realized by a computer device. 4, the operation restriction device 100 includes a communication interface 10, a CPU 11, a light receiving unit 110, a main storage device 14, and a secondary storage device 15. The main processing device 200 includes a communication interface 10, a CPU 11, and an output. The device 12 includes an input device 13, a main storage device 14, and a secondary storage device 15. However, the hardware configurations of the respective units of the operation restriction device 100 and the main processing device 200 are not the same, and are configured so that different information can be stored and controlled based on different programs.

  The communication interface 10 constitutes an input / output interface for communication with peripheral terminals. The communication interface 10 also includes an interface for connection control with a network (not shown) connected to the operation restriction device 100 and the main processing device 200. In the first embodiment, the communication interface 10 functions as the communication unit 140 and the communication unit 210, respectively.

  The CPU 11 operates the operating system to control the entire operation restriction device 100 and the main processing device 200 according to the first embodiment of the present invention. Further, the CPU 11 reads a program or data from the secondary storage device 15 to the main storage device 14, for example. Specifically, the CPU 11 of the operation restriction device 100 functions as a part of the control unit 120 and the position information management unit 130 in the first embodiment, and the CPU 11 of the main processing unit 200 is the operation impossible control unit 220. , Function as a timer 230, and execute various processes based on program control. Further, the CPU 11 of each of the operation restriction device 100 and the main processing device 200 is not limited to one and may include two or more. The timer 230 is not included in the CPU 11 of the main processing device 200 and may be an independent circuit.

  The output device 12 is realized by, for example, a display or a display, and is used for confirming the output. The output device 12 may display the content of the restricted operation while the CPU 11 (operation impossibility control unit 220) executes the operation permission or restriction based on the operation permission signal. You may display the operation.

  The input device 13 is realized by, for example, a mouse, a keyboard, a built-in key button, and the like, and is used for an input operation. The input device 13 is not limited to a mouse, a keyboard, and a built-in key button, and may be a touch panel, for example.

  The main storage device 14 is a working memory based on the control of the CPU 11.

  The secondary storage device 15 is, for example, an optical disk, a flexible disk, a magnetic optical disk, an external hard disk, a semiconductor memory, or the like, and records a computer program so that it can be read by a computer. The secondary storage device 15 temporarily stores or non-temporarily stores a computer program to be executed by each of the operation restriction device 100 and the main processing device 200. The computer program may be downloaded from an external computer (not shown) connected to the communication network. In the first embodiment, it functions as the location information management unit 130. Further, the secondary storage device 15 may store usable information associated with the position identification information. In this case, the CPU 11 reads the usable information associated with the position identification information.

  Note that the block diagram (FIG. 1) used in the description of the first embodiment shows functional unit blocks, not hardware unit configurations. These functional blocks are realized by the hardware configuration shown in FIG. However, the means for realizing each unit included in the operation restriction device 100 and the main processing device 200 are not particularly limited. That is, each component of the operation restriction device 100 and the main processing device 200 may be constituted by independent electronic circuits including a logic circuit and a memory, instead of the computer circuit shown in FIG. Further, the operation restriction device 100 and the main processing device 200 may be realized by one physically coupled device, or two or more physically separated devices are connected by wire or wirelessly, It may be realized by an apparatus.

  In addition, the CPU 11 may read a computer program recorded in the secondary storage device 15 and operate as the control unit 120, the position information management unit 130, the non-operation control unit 220, and the timer 230 according to the program.

  In addition, a recording medium (or storage medium) in which the program code is recorded is supplied to the operation restriction device 100 and the main processing device 200, and the operation restriction device 100 and the main processing device 200 are stored in the recording medium. The code may be read and executed. That is, the present invention may also include a secondary storage device 15 that temporarily or non-temporarily stores software to be executed by the operation restriction device 100 and the main processing device 200 according to the first embodiment. .

  An example of operations of the operation restriction device 100 and the main processing device 200 configured as described above will be described with reference to the flowcharts of FIGS.

  FIG. 5 is a flowchart showing an outline of an operation for determining whether or not to permit the main processing device 200 operation in the operation restriction device 100 according to the first embodiment. Note that the processing according to this flowchart may be executed based on the program control by the CPU 11 described above.

  Note that it is assumed that the operation limiting device 100 and the main processing device 200 start measuring the timer 230 for a predetermined time immediately after the power is turned on, and a sufficient time has passed, that is, at least T2 hours have passed. As a result, the main processing device 200 is in an operation-restricted state after the power is turned on. Further, the processes in the flowcharts of FIGS. 5 and 6 below are always executed at a cycle shorter than the time T1.

  As shown in FIG. 5, first, the light receiving unit 110 receives visible light transmitted from a visible light communication device (not shown in FIG. 1) that superimposes position identification information on visible light at predetermined time intervals (T1 time). The received light information is output to the control unit 120 (step S101).

  Next, the control unit 120 analyzes the received light reception information (step S102).

  If the position identification information can be extracted as a result of the analysis (YES in step S103), the control unit 120 accepts usable information corresponding to the position identification information from the position information management unit 130 (step S104). If the position identification information cannot be extracted (NO in step S103), the control unit 120 ends the process.

  Next, the control unit 120 determines whether or not the operation of the main processing device 200 is permitted according to the available information (step S105).

  When the operation in the main processing device 200 is permitted (YES in Step S106), the control unit 120 transmits an operation permission signal to the operation disabling control unit 220 of the main processing device 200 via the communication unit 140 (Step S107). . If the operation of main processing device 200 is not permitted (NO in step S106), the process is terminated.

  As described above, the operation restriction device 100 ends the operation for determining the operation permission of the main processing device 200.

  FIG. 6 is a flowchart showing an outline of operation restriction execution and release operations in the main processing apparatus 200 according to the first embodiment. The process according to this flowchart may also be executed based on the program control by the CPU 11 described above.

  First, when the measurement time of the timer 230 has not reached the predetermined time T2 (NO in step S201), and when the operation disabling control unit 220 receives an operation permission signal (YES in step S202), the operation disabling control unit 220 is not processed. Resets the measurement time of the timer 230 to zero (step S203). As a result, the timer 230 resumes measurement for a predetermined time (step S204). If the operation of the main processing device 200 that should be permitted by the operation permission signal is restricted at the time of resetting the timer or restarting the counting (YES in step S205), the operation restriction of the main processing device 200 is released. (Step S206), and the process ends. If the operation of the main processing device 200 is not restricted (NO in step S205), the processing is ended as it is. Here, the operation of the main processing device 200 is, for example, an operation of the input device 13.

  If the operation disabling control unit 220 has not received the operation permission signal in step S202 (NO in step S202), the process is terminated as it is.

  When the measurement time of the timer 230 reaches the predetermined time T2 in step S201 (YES in step S201), the timer 230 transmits a predetermined time expiration signal to the operation disabling control unit 220 (step S207) and is permitted by the operation permission signal. An operation restriction is performed on the operation of the main processing device 200 to be performed (step S208). As described in steps S105 to S107 and steps S201 to S204, as long as the operation restriction device 100 permits the operation of the main processing device 200 according to the available information, the control unit 120 sends an operation permission signal at a T1 time period. Although the measurement time of the timer 230 is reset to zero and transmitted to the operation impossible control unit 220, the fact that the measurement time of the timer 230 reaches the predetermined time T2 means that the main processing device 200 is in a position where the operation is permitted. This is because it can be determined that there is no. As described above, the time T2 is set to be longer than the period T1 of the predetermined time interval in which the position identification information is superimposed on the visible light.

  Thus, the main processing device 200 ends the operation restriction execution and release operations of the main processing device 200.

  In the first embodiment of the present invention, the information processing device 300 is not located in the area of the visible light communication lighting device A or B in FIG. 1, and the timer 230 counts the predetermined time T2 and the predetermined time expiration signal. Is output, the operation impossibility control unit 220 executes the operation restriction. However, the execution form of the operation restriction according to the present invention is not limited to this. For example, when the information processing device 300 is not located in the area of the visible light communication lighting device A or B in FIG. 1 and the timer 230 counts the predetermined time T2 and outputs a predetermined time expiration signal, the information processing device 300 is predetermined. Operation (first operation) is permitted, and operations other than the first operation are restricted. Then, when the information processing device 300 is located in the area of the visible light communication lighting device A or B, it may be controlled by the operation permission signal so as to permit the second operation or the third operation together with the first operation. .

  Next, effects of the first exemplary embodiment of the present invention will be described.

  The operation restriction device 100 according to the present embodiment described above can perform an operation restriction operation corresponding to the control of the environment specificity and security strength.

  This is because the following configuration is included. That is, firstly, for example, since the position identification information is superimposed on visible light as information for operation control, the operation restriction device 100 has a uniqueness of the visible light illuminating device and a specificity due to the structure of the place of use and the environment. to be influenced. If there is an object that is temporarily blocked from visible light between the visible light illumination device and the light receiving unit, that is, if the visible light is intermittently received, the operation permission of the main processing device 200 is permitted. Even if necessary, the operation limiting operation may be executed. However, in the embodiment of the present invention, the timer 230 starts the operation limiting operation of the main processing device 200 when the measurement time reaches a predetermined time. Thereby, even if the main processing device 200 cannot temporarily receive visible light that superimposes position identification information on visible light, an operation that should be permitted by the operation permission signal while the timer operates (before resetting). Can be operated in an unrestricted state. Further, the operation limiting device 100 can appropriately limit the operation of the main processing device 200 even in an environment where visible light is intermittently received by extending the predetermined time measured by the timer 230. By shortening the predetermined time measured by 230, the operation restriction of the main processing device 200 can be immediately executed, and the security strength can be increased. As described above, the present invention has an effect that it can cope with the control of the specificity of the environment and the security strength.

[Modification]
In addition, the visible light communication system used by the present embodiment can encrypt position identification information superimposed on visible light. FIG. 7 is a block diagram illustrating a configuration of the information processing apparatus 301 of the present modification that receives encrypted position identification information. Specifically, the position identification information encrypted by the visible light illumination device is superimposed on the visible light and transmitted. When the light receiving unit 110 receives the visible light, the encrypted position identification information of the light reception information is decoded by the decoding unit 150 of the operation restriction device 101, and the decoded position identification information is generated. The position identification information is output to the control unit 120. In this case, there is an effect that it is possible to prevent unauthorized use of the main processing device 200 using a false visible light illumination device in which position identification information is disguised.

  In another modification, the information processing apparatus 302 can encrypt the operation permission signal. FIG. 8 is a block diagram illustrating a configuration of an information processing apparatus 302 according to another modification. Specifically, in the operation restriction device 102, when the control unit 120 generates an operation permission signal, the encryption unit 160 encrypts the operation permission signal. The control unit 120 receives the encrypted operation control signal from the encryption unit 160, and transmits the encrypted operation permission signal to the main processing device 202. After the operation permission signal is received, the operation disabling control unit 220 (also referred to as an operation control unit) decodes the operation permission signal by the decoding unit 240 and generates a decoded operation permission signal. In this case, it is possible to prevent an illegal use of the main processing device 200 using the fake operation restriction device 100 camouflaged with the operation permission signal.

  Further, the operation restriction device 100 and the main processing device 200 can be connected by a physical lock claw, or the operation restriction device 100 and the main processing device 200 can be integrated. In this case, the communication cable connecting the operation restriction device 100 and the main processing device 200 is lengthened to prevent unauthorized use of the main processing device 200 by installing only the operation restriction device 100 under the visible light communication device. The effect that it can be obtained.

  FIG. 9 shows an embodiment of the basic configuration of the present invention. In the case of the present embodiment, the light receiving unit 110 receives visible light transmitted from a visible light communication device that superimposes information for operation restriction on visible light at a predetermined time T1 interval, and transmits light reception information to the control unit 123. . When the control unit 123 analyzes the light reception information received from the light reception unit 110 and extracts information for operation restriction, the control unit 123 determines the operation permission of the information processing device 303 based on the information for operation restriction. When the operation is permitted, an operation permission signal is transmitted to the operation impossibility control unit 220 (operation control unit), and the timer 230 measures the predetermined time T2 and when the predetermined time expires, the predetermined time expiration signal is transmitted to the operation disabling control unit 220. Send to. When the operation disabling control unit 220 receives an operation permission signal from the control unit 123, the timer 230 is reset, and if the operation restriction of the information processing device 303 is executed, the timer 230 is released. Further, when an expiration signal is received from the timer 230 for a predetermined time, the operation restriction of the information processing device 303 is executed. Note that T2> T1. The effect of this embodiment is the same as the effect of the first embodiment of the present invention.

  Each component in each embodiment of the present invention described above can be realized by a computer apparatus and firmware based on program control as well as by realizing the function in hardware. The program is provided by being recorded on a computer-readable recording medium such as a magnetic disk or a semiconductor memory, and is read by the computer when the computer is started up. The read program causes the computer to function as a component in each of the embodiments described above by controlling the operation of the computer.

  Although the present invention has been described with reference to each embodiment, the present invention is not limited to the above embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  For example, each component described in each of the above embodiments does not necessarily have to be individually independent. For example, for each component, a plurality of components may be realized as one module, or one component may be realized as a plurality of modules. Each component is configured such that a component is a part of another component, or a part of a component overlaps a part of another component. Also good.

  Further, in each of the embodiments described above, a plurality of operations are described in order in the form of a flowchart, but the described order does not limit the order in which the plurality of operations are executed. For this reason, when each embodiment is implemented, the order of the plurality of operations can be changed within a range that does not hinder the contents.

10 Communication interface 11 CPU
DESCRIPTION OF SYMBOLS 12 Output device 13 Input device 14 Main storage device 15 Secondary storage device 100, 101, 102 Operation restriction device 110 Light-receiving part 120, 123 Control part 130 Location information management part 140 Communication part 150 Decryption part 160 Encryption part 200, 202 Main process Device 210 Communication unit 220 Operation impossible control unit 230 Timer 240 Decoding unit 300, 301, 302, 303 Information processing device

Claims (10)

A light receiving unit that receives the visible light transmitted from the visible light communication device that superimposes information for operation control on the visible light at predetermined time intervals, and outputs light reception information;
Control for generating an operation permission signal indicating permission of operation in the information processing device based on the information for operation control when analyzing the light reception information output from the light receiving unit and extracting information for operation control And
A timer for measuring a predetermined time and transmitting a predetermined time expiration signal when the predetermined time expires;
When the operation permission signal generated by the control unit is received, the timer is reset, and if the operation restriction of the information processing apparatus is executed at the time of the reset, the operation restriction is released and the timer expires for a predetermined time When receiving a signal, an operation control unit that executes an operation restriction of the information processing device;
An information processing apparatus including: The information for operation control includes position identification information,
Corresponding to the position identification information, a position information management unit that stores usable information that is information that predetermines an operation to be permitted and an operation to be restricted among a plurality of operations of the information processing apparatus. Prepared,
When the control unit analyzes the light reception information and extracts the position identification information, the control unit receives the availability information corresponding to the location identification information from the location information management unit, and performs the operation based on the availability information. The information processing apparatus according to claim 1, wherein the information processing apparatus generates a permission signal. A light receiving unit that receives the visible light transmitted from the visible light communication device that superimposes information for operation control on the visible light at predetermined time intervals, and outputs light reception information;
When the light receiving information output by the light receiving unit is analyzed and information for operation control of the main processing device is extracted, operation permission indicating permission of operation in the main processing device based on the information for operation control A control unit for generating a signal;
Operation restriction device including The information for operation control includes position identification information,
Corresponding to the position identification information, a position information management unit for storing usable information which is information that predetermines an operation to be permitted and an operation to be restricted among a plurality of operations of the main processing device. Prepared,
When the control unit analyzes the light reception information and extracts the position identification information, the control unit receives the usable information corresponding to the position identification information from the position information management unit, and permits the operation based on the usable information. The operation restricting device according to claim 4 which generates a signal. A decrypting unit for decrypting the encrypted position identification information;
The information processing apparatus according to claim 2, wherein the light receiving unit receives visible light including the encrypted position identification information, and the decoding unit decodes the encrypted position identification information of the light reception information. An encryption unit for encrypting the operation permission signal;
A decrypting unit for decrypting the encrypted operation permission signal;
The control unit generates the operation permission signal encrypted by the encryption unit, the operation control unit controls the decryption unit, and the encrypted operation permission signal is decrypted by the decryption unit. Or the information processing apparatus according to 5. The visible light transmitted from the visible light communication device that superimposes the information for operation restriction on the visible light at a predetermined time interval is received by the light receiving unit, and the received light information is output.
When analyzing the light reception information and extracting information for operation restriction, generate an operation permission signal indicating permission of operation in the information processing device based on the information for operation restriction,
When the timer measures the predetermined time and expires, the predetermined time expiration signal is transmitted,
The timer is reset based on the operation permission signal, if the operation restriction of the information processing device is executed, the operation restriction is released, and if the expiration signal for a predetermined time is received from the timer, the information processing An operation restriction method for restricting device operations.   The operation restricting method according to claim 7, wherein the light receiving unit receives visible light including the encrypted position identification information, and the decoding unit decodes the encrypted position identification information of the light reception information. Generate the encrypted operation permission signal,
After decrypting the encrypted operation permission signal, the timer is reset based on the operation permission signal, and if the operation restriction of the information processing apparatus is executed, the operation restriction is released, and the timer The operation restriction method according to claim 7 or 8, wherein an operation restriction of the information processing apparatus is executed when an expiration signal for a predetermined time is received from the information processing apparatus. When the visible light received from the visible light communication device that superimposes information for operation control on visible light at a predetermined time interval is received by the light receiving unit and received light reception information,
When extracting information for operation control, processing for generating an operation permission signal indicating permission of operation in the information processing device based on the information for operation restriction;
Processing to control the timer;
When the operation permission signal is received, the timer is reset, and when the operation restriction of the information processing device is executed, the timer is released. When the predetermined time expiration signal is received from the timer, the information processing device Processing to perform operation restriction;
A program that causes a computer to execute.

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