JP2013003604A - Information terminal, method for controlling information terminal, control program, and recording medium - Google Patents

Abstract

[PROBLEMS] To easily register position information and security functions in association with each other and easily confirm / change later.
A cellular phone includes a display unit that displays an image and a storage unit that stores image data with position information to which position information is added, and displays an image of the image data with position information. The security setting unit 510 that identifies the security setting information that is displayed on the unit 40 and indicates the content that restricts the function of the own device, adds the security setting information to the image data with the position information, and stores it in the storage unit 20. Is further provided.
[Selection] Figure 1

Description

  The present invention relates to an information terminal having a security function, an information terminal control method, a control program, and a recording medium.

  In recent years, with the spread of information terminals having a security function, models that acquire position information of an information terminal using a GPS device and perform security management according to the acquired position information have been developed one after another.

  For example, Patent Document 1 discloses an information processing apparatus that performs security management using position information. Specifically, the information processing apparatus acquires position information of the information processing apparatus, and data for determining which functions are restricted among the functions of the information processing apparatus according to the position information. Based on the security policy data, the information processing apparatus restricts functions that require security management according to the position information.

  Patent Document 2 discloses a storage device having a security function. Specifically, the storage device detects the position of the storage device, the location where the storage device is located is preset, the preset location is compared with the measured location, and the measurement is performed. If the location is different from the preset location, access to the storage medium of the storage device is prohibited.

  Patent Document 3 discloses a portable terminal information management system for simultaneously satisfying the contradiction between convenience and safety of information. Specifically, the portable terminal information management system transfers display information stored in the memory card to the first storage unit or the second storage unit based on the current position of the user. That is, when it is determined that the user position information and the previous user position information do not match, the display information stored in the storage unit of the memory card, the first storage unit, or the second storage unit is changed to the other two. A storage position indicating which of the two storage units is to be stored is determined based on the changed user position information.

JP 2009-070073 (April 2, 2009) JP 2009-259115 A (released on November 5, 2009) JP 2010-086165 A (published on April 15, 2010)

  However, when performing security management according to location information, when location information and security functions are registered in advance in association with each other, the following problems occur because the location information is conventionally represented by longitude and latitude. It was. That is, it is difficult for the user of the information terminal to grasp the location indicated by the position information, and it is troublesome to register the position information in association with the security function. Furthermore, when the user confirms or changes the association information between the registered position information and the security function, it is difficult to know what setting (location information) is set.

  For example, the technique described in Patent Document 1 limits functions according to position information based on security policy data. However, in order to register the security policy data, it is necessary to grasp the position information. How to grasp the position information is not specifically described in the cited document 1. Moreover, it is difficult to confirm the range where the function is restricted, and it is also troublesome to change the range.

  The technique described in Patent Document 2 prohibits access to a storage medium when the measurement position is different from the set location. However, as in Patent Document 1, the user does not know how to register the setting location and how to confirm / change the setting location, and it is not easy for the user.

  The technique described in Patent Document 3 compares the user position information with the previous user position information and determines the storage position. However, the positional information and the security function are not registered in association with each other. Therefore, the user cannot manage the security function according to a predetermined location.

  The present invention has been made in view of the above-described problems, and its purpose is to easily associate and register position information and security functions, and information that can be easily confirmed / changed later. It is to realize a control method of a terminal and an information terminal, a control program, and a recording medium.

  In order to solve the above-described problem, an information terminal according to the present invention is an information terminal that restricts the function of the own information terminal according to the current position of the own information terminal, and includes a display unit that displays an image, and position information. And a storage unit for storing image data with position information to which is added, function restriction setting information indicating the content of the function of the own information terminal while displaying the image of the image data with position information on the display unit And a function restriction setting means for adding the function restriction setting information to the image data with position information and storing the function restriction setting information in the storage unit.

  An information terminal control method according to the present invention is an information terminal control method that restricts functions of the own information terminal according to the current position of the own information terminal, wherein the information terminal displays an image. And a storage unit for storing the image data with position information to which the position information is added. The image of the image data with position information is displayed on the display unit, and the function restricts the function of the information terminal. It includes a function restriction setting step of specifying function restriction setting information to be shown, adding the function restriction setting information to the image data with position information, and storing the information in the storage unit.

  According to the above configuration, in the information terminal that restricts the function of the own information terminal according to the current position of the own information terminal, the position information is added with the function restriction setting information indicating the content that restricts the function of the own information terminal. It is added to the image data with position information and stored in the storage unit. Therefore, when the information terminal restricts the function of the own information terminal according to the current position of the own information terminal, the information terminal refers to the position information added to the image data with the position information, and the position information near the current position. The function of the own information terminal can be restricted using the function restriction setting information added to the image data with position information to which is added.

  In particular, in the information terminal, it is not the position information but the image data that is directly associated with the function restriction setting information. Therefore, when registering or changing the function restriction by associating the position information with the function restriction setting information, the user can perform the operation while viewing the image. Therefore, since the position indicated by the position information can be specifically recognized as an image, setting work is easy. Of course, in the image data with position information, it is desirable that position information such as the longitude and latitude of the position is added to the image data obtained by photographing the target at the position where the function restriction registration is desired.

  Further, since the function restriction setting information is added to the image data together with the position information, data such as a management table for managing the position information (or image data with position information) and the function restriction setting information in association with each other. Is not necessary and can save memory.

  Further, by sharing the image data, it is possible to share the function restriction setting information added to the image data. For example, when it is desired to perform the same function restriction as described above on another information terminal, it is not necessary to set again on the information terminal, and only the image data to which the function restriction setting information is added is received. Thus, the same function restriction as described above can be performed. Therefore, the user's convenience is not required and the convenience for the user can be improved.

  Furthermore, the information terminal according to the present invention includes a plurality of applications, and the function restriction setting information added to one piece of image data with position information includes contents of function restrictions for the plurality of applications. It is characterized by being.

  According to the above configuration, further, by extracting one piece of image data with position information, it is possible to restrict functions for a plurality of applications, so that registration and change of function restrictions are easy.

  Furthermore, the information terminal according to the present invention provides the second function restriction setting information indicating the content restricting the function of the own information terminal, which is different from the function restriction setting information added to the image data with position information. Are associated with each other.

  According to the above configuration, there is the second function restriction setting information associated with the image data separately from the function restriction setting information. Therefore, the second function restriction setting information having contents different from the function restriction setting information can be associated with one image data, and can be selectively used with priorities. . For example, the second function restriction setting information associated with the image data may have a higher priority than the function restriction setting information added to the image data.

  Therefore, when the user wants to change the function restriction temporarily, the second function restriction setting information may be used without changing the added function restriction setting information, that is, the image data with position information. Further, when it is desired to restore the function restriction, the second function restriction setting information may be deleted or the association with the second function restriction setting information may be deleted. There is no need to change and reset the function restriction setting information, and the convenience for the user can be improved.

  Further, since it is not necessary to update the function restriction setting information added to the image data, an improvement in the overall processing speed can be expected.

  Furthermore, in the information terminal according to the present invention, the storage unit includes a folder for each of the second function restriction setting information, and the function restriction setting unit displays the image data with position information and the folder in the display unit. The function restriction setting information to which the folder is assigned is associated with the image data with position information moved to the folder by the user.

  According to the above configuration, since a folder is prepared for each of the second function restriction setting information, all the image data with position information under one folder is all the second data to which the folder is assigned. It will be associated with the function restriction setting information.

  Therefore, data such as a management table for managing the position information (or image data with position information) and the second function restriction setting information in association with each other is not necessary, and the memory can be saved.

  In addition, when the user wants to temporarily change the function restriction, the user can easily operate by simply moving the image data to the setting folder. Then, when it is desired to restore the function restriction, the image data may be moved to a place other than the setting folder. As described above, since only the movement between the setting folders is performed, the user can intuitively perform operations when registering or changing the function restriction. Furthermore, since the function restriction setting information added to the image data is not updated, an improvement in the overall processing speed can be expected.

  Furthermore, an information terminal according to the present invention includes an imaging unit that captures an image to generate image data, a position acquisition unit that acquires a current position of the own information terminal when the imaging unit captures an image, and the imaging unit that generates the information terminal. Image data generation means with position information for generating the image data with position information by adding the position information acquired by the position acquisition means to the image data.

  According to the above configuration, image data with position information can be easily generated by adding position information such as the latitude and longitude of the position to the image data obtained by photographing the target at the position where the function restriction is to be registered. can do. Therefore, it becomes easy to register or change the function restriction by associating the position information with the function restriction setting information.

  The information terminal may be realized by a computer. In this case, the information terminal control program for causing the information terminal to be realized by the computer by causing the computer to operate as the respective means, and the program recorded therein. Computer-readable recording media are also within the scope of the present invention.

  As described above, an information terminal according to the present invention includes a display unit that displays an image, and a storage unit that stores image data with position information to which position information is added, and stores the image of the image data with position information. A function for specifying function restriction setting information indicating the contents for restricting the function of the own information terminal, adding the function restriction setting information to the image data with position information, and storing the function restriction setting information in the storage unit. It is the structure further provided with a restriction setting means.

  In the information terminal control method according to the present invention, the information terminal includes a display unit that displays an image, and a storage unit that stores image data with position information to which the position information is added. While displaying the image of the image data on the display unit, the function restriction setting information indicating the contents to restrict the function of the own information terminal is specified, and the function restriction setting information is added to the image data with the position information and stored. A function restriction setting step stored in the unit.

  In the information terminal, it is not the position information but the image data that is directly associated with the function restriction setting information. Therefore, when registering or changing the function restriction by associating the position information with the function restriction setting information, the user can perform the operation while viewing the image. Therefore, since the position indicated by the position information can be specifically recognized as an image, setting work is easy. Of course, in the image data with position information, it is desirable that position information such as the longitude and latitude of the position is added to the image data obtained by photographing the target at the position where the function restriction registration is desired.

  Further, since the function restriction setting information is added to the image data together with the position information, data such as a management table for managing the position information (or image data with position information) and the function restriction setting information in association with each other. Is not necessary and can save memory.

  Further, by sharing the image data, it is possible to share the function restriction setting information added to the image data. For example, when it is desired to perform the same function restriction as described above on another information terminal, it is not necessary to set again on the information terminal, and only the image data to which the function restriction setting information is added is received. Thus, the same function restriction as described above can be performed. Therefore, there is also an effect that the user's convenience can be improved without taking time and effort of the user.

It is a block diagram which shows the principal part structure of the mobile telephone which concerns on one Embodiment of this invention. (A) (b) is a figure which shows an example of the process outline | summary of the mobile telephone shown in FIG. (A)-(d) is a figure which shows an example of the Exif information area and security function effective state management table of the image file which stores the setting information which concerns on a security function in the mobile telephone shown in FIG. 4 is a flowchart showing an example of security setting processing in the mobile phone shown in FIG. 1. (A)-(g) is a screen transition figure which shows an example of the process of the security setting in the mobile telephone shown in FIG. 3 is a flowchart showing an example of security function switching processing in the mobile phone shown in FIG. 1. (A) and (b) are diagrams showing a basic pattern in the case where there are a plurality of images including the current position in the mobile phone shown in FIG. It is a block diagram which shows the principal part structure of the mobile telephone which concerns on another embodiment of this invention. It is a flowchart which shows an example of the process of the security setting in the mobile telephone shown in FIG. (A)-(h) is a screen transition figure which shows an example of the process of the security setting in the mobile telephone shown in FIG. It is a flowchart which shows an example of the process of the security setting in the mobile telephone which concerns on another embodiment of this invention. (A)-(d) is a screen transition figure which shows an example of the process of the security setting in the mobile telephone shown in FIG. FIG. 12 is a tree structure diagram showing a relationship between a setting folder and an image file in the mobile phone shown in FIG. 11. 12 is a flowchart illustrating an example of security function switching processing in the mobile phone illustrated in FIG. 11. It is a flowchart which shows an example of the process of the security setting in the mobile telephone which concerns on another embodiment of this invention. (A)-(c) is a screen transition figure which shows an example of the process of the security setting in the mobile telephone shown in FIG.

  An information terminal according to an embodiment of the present invention will be described below with reference to the drawings. Note that the information terminal according to the present embodiment is realized as a mobile phone. For this reason, hereinafter, the information terminal according to the present embodiment is simply referred to as a mobile phone.

  However, the present invention can be applied not only to mobile phones but also to information terminals generally provided with a security function.

[First Embodiment]
One embodiment of the present invention will be described below with reference to FIGS.

(Outline of processing)
An outline of the processing of this embodiment will be described with reference to FIG. FIG. 2 is a diagram illustrating an example of the processing outline of the present embodiment, and is a diagram illustrating an example in which security management is performed by dividing a position into a workplace and a place other than the workplace. (A) of FIG. 2 is a figure which shows the scene which preserve | saves the image file image | photographed with the camera with a positional information. (B) of FIG. 2 is a figure which shows the scene which switches a security level based on position information.

  As shown in FIG. 2A, first, the user photographs his / her workplace with a camera. After shooting, in the mobile phone 1 (information terminal; see FIG. 1), position information indicating the shooting location (that is, position information near the workplace) is added to the shot image file and stored.

  Then, configure security settings. Here, the security setting is set by further adding a security level and an effective range as security setting information (function restriction setting information) to an image file to which position information is added (image file with position information). That is.

  A specific setting method will be described later. Here, for example, the security setting information added to the image file with position information has a security level of “low” and an effective range of “20 m” (that is, 20 meters). ). In the above case, the mobile phone 1 sets the security level to “low” within a radius of 20 m centering on the position information added to the image file, and sets the security level to “high” outside the above range. Means managing security.

  Then, as shown in FIG. 2B, when the user having the cellular phone 1 is at his / her workplace (that is, a range within a radius of 20 m centering on the position information added to the image file taken). Mobile phone 1 automatically sets the security level to “low”. On the other hand, when the user is outside his / her workplace (that is, outside the above range), the mobile phone 1 automatically sets the security level to “high”.

  Next, the security level and effective range will be described with reference to FIG. FIG. 3 is a diagram illustrating an example of an Exif information area and a security function enabled state management table of an image file that stores setting information related to the security function in the present embodiment.

  In this embodiment, the security level and the effective range are stored in the user comment area (UserComment) in the Exif block (Exif IFD) of the Exif information (hereinafter, for convenience of explanation, the security level and the effective range are stored. This area is referred to as a security setting information area). In addition, position information is stored in a GPS information block (GPS Info IFD) of Exif information (hereinafter, for convenience of explanation, an area in which position information is stored is referred to as a position information area). In addition, the effective state of the security function corresponding to each security level is stored in the security function effective state management table (see (d) of FIG. 3).

  FIG. 3A is a diagram showing an example of the format of the Exif block and the GPS information block in the Exif information of the image file. FIG. 3B is a diagram illustrating an example in which the security level and the effective range are stored in the user comment. (C) of FIG. 3 is a figure which shows an example in which position information is stored in the GPS information block. FIG. 3D is an example of a security function effective state management table showing the effective state of the security function corresponding to each security level.

  First, a method for storing a security level and an effective range in a user comment (UserComment) in the format shown in FIG. 3A will be described with reference to FIG.

  As shown in FIG. 3 (b), a character code (here, ASCII code) is stored in the first 8 bytes of the user comment, and a security level is stored in the subsequent 2 bytes. The effective range is stored in the subsequent 3 bytes. Specifically, in the two bytes for the security level, a specific code (here, 0xF1) representing writing of the security level is stored in the first byte, and a value for identifying the level (here, 0xF1) For example, 0x01 is low, 0x02 is medium, and 0x03 is high).

  In the 3 bytes for the effective range, a specific code (here, 0xF2) indicating the writing of the effective range is stored in the first byte, and a specific numerical value (here, in the second and third bytes). And 0x03E8) representing 1000 m is stored.

  A method for storing position information in the GPS information block (GPS Info IFD) in the format shown in FIG. 3A will be described with reference to FIG.

  As shown in (c) of FIG. 3, for example, position information at north latitude 34 degrees 38 minutes 31 seconds and east longitude 136 degrees 50 minutes 50 seconds is stored as shown in FIG. 3 (c). The north-south latitude and east-west longitude are stored as ASCII codes representing “S”, “N”, “E”, and “W”, respectively, and specific degrees, minutes, and seconds are stored in hexadecimal numbers. Has been. For specific degrees, minutes, and seconds, specific numerical values are stored in the first 4 bytes, and numerical values indicating the number of valid bytes for the first 4 bytes are stored in the remaining 4 bytes. Also good.

  Here, as an example of the setting information relating to the security function, FIGS. 3B and 3C show that the radius “1000 m” is centered on the position at 34 degrees 38 minutes 31 seconds north latitude and 136 degrees 50 minutes 50 seconds east longitude. Indicates that the security level is set to “low” within the effective range within “”.

  Then, as shown in FIG. 3D, the security level “low” is set to OFF for the functions other than the “phone book”, for example, and for the “phone book” function, It is defined to set the security function to ON. That is, when the security level is set to “low”, only the “phone book” function is restricted so that it cannot be used, and functions other than the “phone book” (“standby screen”, “mail”, “phone” and “image” “List”) is ready for use.

  The method for adding the position information is not particularly limited as long as the image file and the position information can be managed in association with each other, and the position information may be held as integral data with the image file as in this embodiment. Alternatively, it may be held as separate data. That is, for example, the position information may be data separate from the image file, and may be managed by a table that manages the position information by associating the image file with the position information.

  In the present embodiment, the security function validity state of the security function validity state management table shown in FIG. 3D may be determined in advance or can be changed by a user operation. It may be.

  In the present embodiment, the security level is always “high” outside the effective range. The security level outside the effective range may be changeable by a user operation.

  Furthermore, the processing outline of the present embodiment is not limited to the processing outline shown in FIG.

  For example, with respect to (a) in FIG. 2, the image file used for the image file with position information is not limited to the one captured by the camera of the own device, and an image file transferred from an external device may be used. Further, the position information may not be added to the image file from the beginning, but may be added later by using software (for example, Kashmir, AbleCV, etc.) for adding the position information.

  Furthermore, regarding (b) in FIG. 2, when managing security functions, as described above, a plurality of functions are supported for each security level according to the security function effective state management table shown in (d) of FIG. The security function may be switched on / off all at once, and the security function may be turned on / off depending on whether the mobile phone is within the effective range for each function (for example, “mail”, “phone”, etc.) You may switch.

(Main components of mobile phone)
The configuration of the mobile phone 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a main configuration of the mobile phone 1.

  As shown in FIG. 1, the mobile phone 1 includes a GPS 10, a storage unit 20, an input unit 30, a display unit 40, and a control unit 50. The mobile phone 1 may include members such as a speaker, a microphone, and a battery in addition to these members, but these members are not shown because they are not related to the features of the invention.

  The GPS 10 receives radio waves transmitted from an artificial satellite and measures the longitude and latitude and altitude of the current position. Note that the present location is not limited to GPS, and any device that can identify the current location may be used. For example, the current location may be received from the base station through communication with the base station.

  The storage unit 20 executes a control program and an OS program executed by the control unit 50, and when the control unit 50 executes various functions of the mobile phone 1 (for example, security setting and security function switching described later). Various data to be read are stored. In the present embodiment, the storage unit 20 stores data such as an image file, a security function enabled state management table ((d) in FIG. 3), and current setting information. The storage unit 20 is realized by, for example, an EPROM, an EEPROM, a flash memory, or the like, which is a nonvolatile memory capable of rewriting contents. Note that the storage unit that stores information that does not require rewriting of contents may be realized by a ROM that is a read-only semiconductor memory, not shown, different from the storage unit 20.

  The input unit 30 acquires a user operation instruction and generates an instruction signal.

  The display unit 40 displays an image in accordance with an instruction from the control unit 50. The display unit 40 only needs to display an image in accordance with an instruction from the control unit 50. For example, an LCD (liquid crystal display), an organic EL display, a plasma display, or the like can be applied.

  The control unit 50 performs various calculations by executing a program read from the storage unit 20 to a temporary storage unit (not shown), and comprehensively controls each unit included in the mobile phone 1. .

  For convenience of explanation, in the control unit 50, a block B1 surrounded by a broken line is a functional block for switching the security function, and a block B2 surrounded by a broken line is a functional block for performing security setting. .

  In the present embodiment, the control unit 50 includes the position information acquisition unit 501 (position acquisition unit), the image file extraction unit 502, the image file selection unit 503, the setting information specifying unit 504, and the current setting information as the block B1. An acquisition unit 505 and a security function control unit 506 are provided. Further, the block B2 includes a display control unit 507, an operation acquisition unit 508, an image file analysis unit 509, and a security setting unit 510 (function restriction setting unit). Each unit (501 to 510) of the control unit 50 can be realized by the CPU reading and executing a program stored in a storage device realized by a ROM or the like to a temporary storage unit realized by a RAM or the like. .

  Below, first, each part with which block B1 is provided is demonstrated.

  The position information acquisition unit 501 reads out longitude and latitude position information acquired from the GPS 10.

  The image file extraction unit 502 includes a position information acquisition unit within an effective range (see FIG. 3A) added to the image file from the image files with position information stored in the storage unit 20. 501 extracts the information including the position information read out.

  When there are a plurality of image files extracted by the image file extraction unit 502, the image file selection unit 503 selects one image file according to an image file selection method based on the priority order described later.

  The setting information specifying unit 504 specifies a security level based on the security setting information added to one extracted (or selected) image file, and based on the specified security level, (d) in FIG. The security function validity state management table for each function is specified with reference to the security function validity state management table shown in FIG.

  The current setting information acquisition unit 505 acquires current setting information indicating the current security level from the storage unit 20.

  The security function control unit 506 compares the security level specified by the setting information specifying unit 504 with the current setting information acquired by the current setting information acquiring unit 505, and if they are different, the setting information specifying unit 504 Based on the specified security level, the security function enabled state of each function is changed.

  Next, each part with which block B2 is provided is demonstrated.

  The display control unit 507 generates an image to be displayed on the display unit 40 and outputs the generated image to the display unit 40.

  The operation acquisition unit 508 acquires the instruction signal generated by the input unit 30.

  The image file analysis unit 509 analyzes whether or not position information is added to the image file, and extracts the position information when it is added. Further, it is analyzed whether or not information such as a security level and an effective range is added to the image file, and if it is added, the information is extracted.

  The security setting unit 510 adds the security setting information (security level and effective range) input by the user acquired by the operation acquisition unit 508 to the image file selected by the user, as shown in FIG. To save.

(Security setting process flow)
The flow of security setting processing in the mobile phone 1 will be described with reference to FIGS. FIG. 4 is a flowchart showing an example of security setting processing in the mobile phone 1. FIG. 5 is a screen transition diagram illustrating an example of security setting processing in the mobile phone 1.

  As shown in FIG. 4, first, the display control unit 507 controls to create a list of image files in the mobile phone 1 and display the list on the display unit 40 (S101). FIG. 5A is a diagram illustrating an example of an image file list screen displayed on the display unit 40. Here, an image file to which position information is not added may also be included.

  Next, when an image file is selected by a long press or the like, the operation acquisition unit 508 detects an input of “image data selection” (S102). Then, the image file analysis unit 509 is notified of information for identifying the selected image file (“file name” in this embodiment).

  Next, the image file analysis unit 509 reads the image file from the storage unit 20 based on the “file name” notified by the operation acquisition unit 508, and determines whether or not position information is added to the image file. Analyze (S103). When the image file analysis unit 509 determines that position information has been added (Yes in S103), the display control unit 507 displays “security” on the display unit 40 together with buttons such as “edit” and “wallpaper registration”. The image file operation menu on which the “button” is displayed is displayed (S105). FIG. 5B is a diagram showing an example of an image file operation menu with a “security” button.

  On the other hand, when the image file analysis unit 509 determines that the position information is not added (No in S103), the display control unit 507 displays a normal image file operation menu on the display unit 40 (S104).

  The normal image file operation menu is a menu that is displayed after long-pressing one image file from the image file list screen in a normal case (position information is not added to the image file). Specifically, in the normal image file operation menu, buttons such as “Edit” and “Register wallpaper” are displayed, but the “Security” button is not displayed, or even if it is displayed, it becomes gray, etc. Cannot be selected. Note that the processing after the normal image file operation menu and the normal image file operation menu are displayed are not related to the feature points of the present invention, and thus the illustration and subsequent processing of the menu are omitted.

  Next, when the “security” button is selected in the image file operation menu with the “security” button, the operation acquisition unit 508 detects “select security” (S106). Then, this is notified to the image file analysis unit 509.

  When the image file analysis unit 509 receives the notification from the operation acquisition unit 508, the image file analysis unit 509 displays the security setting information (security level and effective range) added to the selected image file (S107). For example, if security setting information is not added to the image file, the security level is “none” and the effective range is “none” as default values (S107). FIG. 5C is a diagram showing an example when the security level and effective range are displayed as default values (level: none, range: none) when security setting information is not added to the image file. is there.

  Next, the operation acquisition unit 508 acquires the “security level” (for example, high, medium, low, etc.) input by the user from the input unit 30 (S108). FIG. 5D illustrates an example of a “security level” setting screen.

  Subsequently, the operation acquisition unit 508 acquires an “effective range” (security range) (for example, a radius of 20 m, 100 m, 1000 m, etc.) input by the user from the input unit 30 (S109). FIG. 5E is a diagram illustrating an example of a selection screen for “effective range” (security range).

  Subsequently, the operation acquisition unit 508 receives the instruction signal generated by the input unit 30 (S110). When the operation acquisition unit 508 receives a “cancel” signal from the input unit 30 (No in S110), the operation acquisition unit 508 returns to the “current security setting” screen (current security status display screen of the image) (S107; ( c)).

  On the other hand, when the operation acquisition unit 508 receives an “OK” signal from the input unit 30 (Yes in S110; see FIG. 5F), the “security level”, “effective range”, and The selected image file name is transmitted to the security setting unit 510.

  Then, based on the information received from the operation acquisition unit 508, the security setting unit 510 sets “security level” and “effective range” as security setting information in the selected image file as shown in FIG. As shown in FIG. 4, the image is stored in the security setting information area of the image file (S111). FIG. 5G is a diagram illustrating an example of a screen displayed when the information received from the operation acquisition unit 508 is stored as illustrated in FIG.

(Flow of security function switching process)
A flow of security function switching processing in the mobile phone 1 will be described with reference to FIG. FIG. 6 is a flowchart showing an example of the security function switching process in the mobile phone 1.

  As shown in FIG. 6, first, the position information acquisition unit 501 acquires the current position from the GPS 10 (S201).

  Subsequently, the image file extraction unit 502 adds the position information acquisition unit to the effective range (see FIG. 3A) added to the image file from the image files stored in the storage unit 20. The image file including the current position acquired in 501 is searched and extracted (S202).

  Next, the image file extraction unit 502 determines whether there is the extracted image file (S203).

  When the image file extraction unit 502 determines that there is the extracted image file (Yes in S203), the image file extraction unit 502 subsequently determines whether there are a plurality of the image files to be determined (S205).

  When the image file extraction unit 502 determines that there are a plurality of extracted image files (Yes in S205), the image file selection unit 503 selects the image file with the highest priority.

  Here, a method of selecting an image file according to priority in the present embodiment will be described with reference to FIG. FIG. 7 is a diagram showing a basic pattern when there are a plurality of image files including the current position. A circle area in FIG. 7 indicates an effective range added to the image file, and a hatched area indicates a portion where the effective ranges overlap. In FIG. 7A, the effective range a2 added to one of the two extracted image files is entirely overlapped with the effective range a1 added to the other image file (effective The range a2 is a diagram illustrating an example in which the range a2 is completely included in the effective range a1). FIG. 7B is a diagram illustrating an example in which the effective range b1 and the effective range b2 added to the two extracted image files partially overlap.

  As an image file selection method according to the priority order in the present embodiment, first, as shown in FIG. 7A, when the effective range a2 overlaps the effective range a1, the innermost effective range. The security setting information added to the image file having the effective range (a2 here) is validated. Further, when there are a plurality of effective ranges on the innermost side and the effective ranges (here, effective range b1 and effective range b2) partially overlap as shown in FIG. Security setting information added to an image file having the highest effective range (here, effective range b1) among a plurality of effective ranges is made effective.

  Note that the method of selecting an image file based on the priority order is not particularly limited as long as one image file can be selected and the security setting information can be specified. For example, the one having the highest security level or the lowest one is always used. May be selected.

  The image file selection unit 503 first selects the image file having the innermost effective range in the pattern shown in FIG. 7A based on the image file selection method based on the priority (S206). . Subsequently, the image file selection unit 503 selects an image file having an effective range with the highest security level in the pattern shown in FIG. 7B (S207). As a result, one image file is selected.

  Specifically, for example, in the pattern shown in FIG. 7A, an image file having an innermost effective range is selected. As a result, one image file or a plurality of image files that overlap a part of the effective range is selected. When one image file is selected, the process of S207 may be omitted. However, when a plurality of image files are selected, in the pattern shown in FIG. Select an image file with the effective range with the highest security level. As a result, one image file is selected.

  Then, the setting information specifying unit 504 specifies the security level to be set according to the security level added to the selected one image file (S208).

  On the other hand, when the image file extraction unit 502 determines that the extracted image file is not plural (one) (No in S205), the setting information specifying unit 504 adds the extracted image file to one extracted image file. The security level to be set is specified according to the set security level (S208).

  If the image file extraction unit 502 determines that there is no extracted image file (No in S203), the setting information specifying unit 504 determines that there is no image file including the current position, that is, there is no image file including the current position. The security level to be set is specified with reference to the security level in the current position that is not included in any of the effective ranges added to the image file (S204). In this embodiment, since the security level outside the effective range is always “high”, the security level to be set is specified as “high”.

  After the setting information specifying unit 504 specifies the security level to be set, the setting information specifying unit 504 notifies the security function control unit 506 of the specified security level.

  Next, the current setting information acquisition unit 505 acquires current setting information (current security level) from the storage unit 20 and notifies the security function control unit 506 of the current setting information.

  Then, the security function control unit 506 compares the security level to be set notified by the setting information specifying unit 504 with the current setting information notified by the current setting information acquiring unit 505 (S209).

  If the result of the comparison is “different” (Yes in S209), the security function control unit 506 changes the security state to the security level to be set (S210). Then, the newly set security level is stored in the storage unit 20 as current setting information. Thereafter, the control unit 50 determines whether or not to end the security function switching process (S211).

  On the other hand, if the comparison result is “same” (No in S209), the control unit 50 determines whether or not to end the security function switching process (S211).

  When the control unit 50 determines to end the security function switching process (Yes in S211), the control unit 50 ends the security function switching process (S212). On the other hand, when the control unit 50 determines not to end the security function switching process (No in S211), the position information acquisition unit 501 repeatedly acquires the current position from the GPS (S201).

[Second Embodiment]
In the first embodiment, the example in which the security setting is performed from the image file list screen in the mobile phone 1 has been described. Hereinafter, as the second embodiment, the mobile phone 2 (information terminal) takes an image with the camera. At the same time, an example of performing security setting will be described in detail with reference to FIGS.

  In addition, about the same component as 1st Embodiment, the same member number is attached | subjected and the description is abbreviate | omitted. Here, differences from the first embodiment will be mainly described, and components that are not particularly described have the same configurations and functions as those of the first embodiment.

(Main components of mobile phone)
A configuration of the mobile phone 2 according to the present embodiment will be described with reference to FIG. FIG. 8 is a block diagram showing a main configuration of the mobile phone 2.

  As shown in FIG. 8, the mobile phone 2 further includes a camera 60, a camera control unit 511 (imaging unit) as a block B2 of the control unit 50, and an image finishing unit 512 (image data generation unit). Other than that, the configuration is the same as that of the mobile phone 1 shown in FIG.

  The camera 60 is for taking pictures, moving pictures, and the like.

  The camera control unit 511 activates the camera 60 or causes it to take a picture.

  The image finishing unit 512 finishes an image file captured by the camera 60 with or without position information and stores it in the storage unit 20. Here, it is assumed that the position information is acquired by the GPS 10 at the time of shooting with the camera 60, immediately before shooting or immediately after shooting, under the control of the position information acquisition unit 501. The image finishing unit 512 adds security setting information to the finished image file.

(Security setting process flow)
A flow of security setting processing in the mobile phone 2 will be described with reference to FIGS. 9 and 10. FIG. 9 is a flowchart illustrating an example of security setting processing in the mobile phone 2. FIG. 10 is a screen transition diagram illustrating an example of security setting processing in the mobile phone 2.

  As shown in FIG. 9, first, the camera control unit 511 activates the camera photographing process and displays a screen capable of photographing (S301). (A) of FIG. 10 is a figure which shows an example of the screen after starting a camera imaging | photography process.

  Then, the camera control unit 511 determines whether or not to end the camera shooting process due to the pressing of the clear key or the like, or due to timeout (S302). If the camera control unit 511 determines to end the camera shooting process (Yes in S302), it ends the camera shooting process (S303).

  On the other hand, when the camera control unit 511 determines not to end the camera shooting process (No in S302), the operation acquisition unit 508 receives the user's shooting instruction signal (when it detects that the user has pressed the shutter). The camera control unit 511 is notified. Upon receiving the notification from the operation acquisition unit 508, the camera control unit 511 causes the camera 60 to perform camera shooting (S304).

  Subsequently, the image finishing unit 512 determines whether to save the image file captured by the camera as an image file with position information (S305). FIG. 10B is a diagram illustrating an example of a screen after an image is captured by the camera.

  When it is determined that the image finishing unit 512 does not store the image with position information (No in S305), the captured image file is stored in the storage unit 20 as a normal image file (image file without position information) (S306). ). Thereafter, the display control unit 507 causes the display unit 40 to display a screen (see (h) in FIG. 10) that can be taken after the camera is activated (S301).

  On the other hand, if it is determined that the image finishing unit 512 is to save as an image file with position information (Yes in S305), the image finishing unit 512 acquires the current position from the position information acquisition unit 501, adds the current position to the captured image file, and stores it in the storage unit. 20 (S307).

  Next, the display control unit 507 displays default security setting information on the display unit 40 (S308). The default security setting information is information in which the security level is “none” and the effective range is “none”. In other words, the security level and effective range are not set. FIG. 10C shows a screen on which default security setting information is displayed.

  Next, the operation acquisition unit 508 detects and determines whether or not the user has selected the “setting” button (see FIG. 10C) (S309).

  When the operation acquisition unit 508 detects that the user has selected the “cancel” button (see FIG. 10C) (that is, the “set” button has not been selected) (No in S309), display control is performed. The unit 507 causes the display unit 40 to display a screen (see (h) of FIG. 10) that can be taken after the camera is activated (S301).

  On the other hand, when the operation acquisition unit 508 detects that the user has selected the “Setting” button (Yes in S309), the “security level” (for example, high, medium, Low) is acquired (S310). FIG. 10D is a diagram illustrating an example of a “security level” setting screen.

  Subsequently, the operation acquisition unit 508 acquires the “effective range” (security range) (for example, a radius of 20 m, 100 m, 1000 m, etc.) input by the user from the input unit 30 (S311). FIG. 10E is a diagram showing an example of a selection screen for “effective range” (security range).

  Subsequently, the operation acquisition unit 508 determines a user input signal from the input unit 30 (S312). When the operation acquisition unit 508 receives a “cancel” signal from the input unit 30 (No in S312), the operation acquisition unit 508 returns to the default security setting information display screen (S308; see FIG. 10C).

  On the other hand, when the operation acquisition unit 508 receives the “OK” signal from the input unit 30 (Yes in S312; see FIG. 10F), the “security level”, “effective range”, and The selected image file name is transmitted to the security setting unit 510.

  Then, the security setting unit 510 adds the security setting information to the selected image file based on the information received from the operation acquisition unit 508 and saves it (S313). FIG. 10G is a diagram illustrating an example of a screen displayed when information received from the operation acquisition unit 508 is added to the selected image file and saved.

  Thereafter, the display control unit 507 causes the display unit 40 to display a screen (see (h) in FIG. 10) that can be taken after the camera is activated (S301).

[Third Embodiment]
In the first and second embodiments, the example in which the security level and the effective range are selected by the user and the security setting is performed in the mobile phones 1 and 2 has been described. In the telephone 3 (information terminal), an example is shown in which a setting folder comprising a combination of a security level and an effective range is prepared in advance, and security setting is performed by dropping an image file into the setting folder. This will be described in detail based on the above.

  In addition, about the same component as 1st Embodiment, the same member number is attached | subjected and the description is abbreviate | omitted. Here, differences from the first embodiment will be mainly described, and components that are not particularly described have the same configurations and functions as those of the first embodiment.

(Main components of mobile phone)
Since the configuration of the mobile phone 3 is the same as the configuration of the mobile phone 1 shown in FIG. 1, the description thereof is omitted.

(Security setting process flow)
A security setting process flow in the mobile phone 3 will be described with reference to FIGS. 11 and 12. FIG. 11 is a flowchart illustrating an example of security setting processing in the mobile phone 3. FIG. 12 is a screen transition diagram illustrating an example of security setting processing in the mobile phone 3.

  As shown in FIG. 11, first, the display control unit 507 creates a list of setting folders and a list of image files in the mobile phone 3 and controls them to be displayed on the display unit 40 as a security setting screen. (S401). (A) of FIG. 12 is a figure which shows an example of the security setting screen currently displayed on the display part 40. As shown in FIG.

  The setting folder will be described with reference to FIG. FIG. 13 is a tree structure diagram showing the relationship between the setting folder and the image file. In the present embodiment, the setting folder exists under the image folder together with the image file. Of the image files, the security setting is performed by moving the image file with position information to the setting folder.

  Here, when the security setting information (security level and effective range) has already been added to the image file existing under each setting folder, the image file is located more than the added security setting information. The security setting information assigned to the folder is preferentially adopted when performing the security setting. That is, for an image file under the setting folder, regardless of whether security setting information is added to the image file, the security setting information is determined by the folder in which the image file is located, and the security setting is set. Do. For example, for an image file under a setting folder of “high / 20 m”, the security level is always set to “high” within an effective range within a radius “20 m” centering on position information added to the image file. Set to.

  Further, the image file without position information may be controlled not to be dropped on the operation screen, or may be controlled not to be displayed on the security setting screen. Alternatively, the image file with position information and the normal image file without position information may be displayed so as to be distinguished.

  Next, the operation acquisition unit 508 determines whether or not to end the security setting by detecting that the clear key or the like is pressed (S402). When the operation acquisition unit 508 determines to end the security setting (Yes in S402), the control unit 50 ends the display of the security setting screen.

  On the other hand, when the operation acquisition unit 508 determines not to end the security setting (No in S402), the operation acquisition unit 508 determines whether or not the image file with position information has been dropped into the setting folder (S403).

  When the operation acquisition unit 508 determines that the image file with position information has not been dropped into the setting folder (No in S403), the display control unit 507 controls the display unit 40 to continue displaying the security setting screen. (S401).

  On the other hand, when the operation acquisition unit 508 determines that the image file with position information has been dropped into the setting folder (see (b) in FIG. 10) (Yes in S403), the security setting unit 510 converts the image file into the above-described image file. By moving to the setting folder (see (c) of FIG. 10), security setting is performed (S404).

  Thereafter, the display control unit 507 controls the display unit 40 to continue displaying the security setting screen (see FIG. 10D) (S401).

(Flow of security function switching process)
The flow of security function switching processing in the mobile phone 3 will be described with reference to FIG. FIG. 14 is a flowchart illustrating an example of security function switching processing in the mobile phone 3.

  As shown in FIG. 14, first, the position information acquisition unit 501 acquires the current position from the GPS 10 (S601).

  Subsequently, the image extraction unit 502 searches for and extracts an image file including the current position acquired by the position information acquisition unit 501 in the effective range of the setting folder from images under each setting folder. (S602).

  Next, the image file extraction unit 502 determines whether there is the extracted image file (S603).

  When the image file extraction unit 502 determines that there is no extracted image (No in S603), the setting information specifying unit 504 refers to the security level outside the effective range and specifies the security level to be set ( S604). In the present embodiment, the security level outside the effective range is always specified as “high”.

  On the other hand, when it is determined that there is the extracted image file (Yes in S603), the image file extraction unit 502 determines whether there are a plurality of the image files to be determined (S605).

  When the image file extraction unit 502 determines that there are a plurality (not one) of the extracted image files (Yes in S605), the image file selection unit 503 is described in FIG. 7 in the first embodiment. One image file with the highest priority is selected based on the image file selection method based on the priority. Specifically, first, in the pattern shown in FIG. 7A, an image file having the innermost effective range is selected (S606). Subsequently, the image file selection unit 503 selects an image file having an effective range with the highest security level in the pattern shown in FIG. 7B (S607). As a result, one image file is selected.

  Then, the setting information specifying unit 504 specifies the security level to be set based on the folder name of the setting folder including the selected one image file (S608).

  On the other hand, when the image extraction unit 502 determines that the extracted image file is not plural (one) (No in S605), the setting information specifying unit 504 sets the setting folder including the extracted one image. The security level to be set is specified based on the folder name (S608).

  After the setting information specifying unit 504 specifies the security level to be set, the setting information specifying unit 504 notifies the security function control unit 506 of the specified security level.

  Next, the current setting information acquisition unit 505 acquires current setting information (current security level) from the storage unit 20 and notifies the security function control unit 506 of the current setting information.

  Then, the security function control unit 506 compares the security level to be set notified by the setting information specifying unit 504 with the current setting information notified by the current setting information acquiring unit 505 (S609).

  If the comparison result is “different” (Yes in S609), the security function control unit 506 changes the security state to the security level to be set (S610). Then, the newly set security level is stored in the storage unit 20 as current setting information. Then, the control unit 50 determines whether or not to end the security function switching process (S611).

  On the other hand, when the result of the comparison is “same” (No in S609), the security function control unit 506 determines whether or not to end the security function switching process (S611).

  When the control unit 50 determines to end the security function switching process (Yes in S611), the control unit 50 ends the security function switching process (S612). On the other hand, when the control unit 50 determines not to end the security function switching process (No in S611), the position information acquisition unit 501 repeatedly acquires the current position from the GPS 10 (S601).

  In the above description, the image file is actually moved to the setting folder as the file is moved on the screen. However, the security assigned to the setting folder on the screen is not actually moved. For the setting, the security setting information (security level, effective range) added to the image file may be rewritten. In this case, it is not necessary to actually move the image file, and the processing speed can be improved.

[Fourth Embodiment]
In the third embodiment, the example in which the security setting is performed by dropping the image file under the setting folder in the mobile phone 3 has been described. Hereinafter, the mobile phone 4 (information terminal) is described as the fourth embodiment. ), An example of performing security setting by preparing an icon composed of a combination of a security level and an effective range in advance and dropping the icon on an image file will be described in detail with reference to FIGS. To do.

  Note that the present invention is not limited to dropping an icon on an image file. For example, security settings may be performed by dropping an image file on an icon.

  Moreover, the same component number is attached | subjected about the same component as 1st Embodiment, and the description is abbreviate | omitted. Here, differences from the first embodiment will be mainly described, and components that are not particularly described have the same configurations and functions as those of the first embodiment.

(Security setting process flow)
A flow of security setting processing in the mobile phone 4 will be described with reference to FIGS. 15 and 16. FIG. 15 is a flowchart illustrating an example of security setting processing in the mobile phone 4. FIG. 16 is a screen transition diagram illustrating an example of security setting processing in the mobile phone 4.

  As shown in FIG. 15, first, the display control unit 507 creates a list of icons and a list of images on the mobile phone 4 and controls them to be displayed on the display unit 40 as a security setting screen ( S701). FIG. 16A is a diagram illustrating an example of a security setting screen displayed on the display unit 40. For example, for an icon displayed as “high / 100”, the security level is set to “high” within an effective range within a radius of “100 m” centering on the position information added to the image file to which the icon is dropped. Icon to set. As described above, the display screen displays a list of icons to which each security setting is assigned together with the image file.

  Note that an image file without position information may be displayed in gray so that an icon cannot be dropped on the image file, or may be controlled not to be displayed on the security setting screen. Alternatively, the image file with position information and the normal image file without position information may be displayed so as to be distinguished.

  Next, the operation acquisition unit 508 determines whether or not to end the security setting due to the pressing of the clear key or the like (S702). When the operation acquisition unit 508 determines to end the security setting (Yes in S702), the control unit 50 ends the display of the security setting screen.

  On the other hand, if the operation acquisition unit 508 determines not to end the security setting (No in S702), the operation acquisition unit 508 determines whether the icon has been dropped on the image file with position information (S703).

  When the operation acquisition unit 508 determines that the icon has not been dropped on the image file with position information (No in S703), the display control unit 507 controls the display unit 40 to continue displaying the security setting screen ( S701).

  On the other hand, when the operation acquisition unit 508 determines that the icon has been dropped onto the image file with position information (see FIG. 16B) (Yes in S703), the security setting unit 510 indicates that the dropped icon indicates Based on the security setting information, the security setting information is added to the dropped image file and stored (S704).

  Next, the display control unit 507 displays the stored security setting information on the security setting screen in a pop-up screen (see FIG. 16C) (S705).

  Thereafter, the display control unit 507 controls the display unit 40 to continue displaying the security setting screen (see FIG. 16A) (S701).

[Supplement]
The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  Finally, each block of the mobile phones 1 to 4, particularly the control unit 50, may be configured by hardware logic, or may be realized by software using a CPU as follows.

  That is, the mobile phones 1 to 4 include a CPU that executes instructions of a control program for realizing each function, a ROM that stores the program, a RAM that expands the program, a memory that stores the program and various data (Recording medium). An object of the present invention is a recording medium in which program codes (execution format program, intermediate code program, source program) of a control program for mobile phones 1 to 4 which are software for realizing the functions described above are recorded so as to be readable by a computer. Can also be achieved by reading the program code recorded on the recording medium and executing it by the computer (or CPU or MPU).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. Card system such as IC card, IC card (including memory card) / optical card, or semiconductor memory system such as mask ROM / EPROM / EEPROM / flash ROM.

  Further, the mobile phones 1 to 4 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Also, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention can be used for an information terminal. In particular, it can be suitably used for an information terminal having a security function and switching the security level according to the position.

1, 2, 3, 4 Mobile phone (information terminal)
20 storage unit 40 display unit 501 position information acquisition unit (position acquisition means)
510 Security setting section (function restriction setting means)
511 Camera control unit (imaging means)
512 Image finishing unit (image data generating means)

Claims (8)

An information terminal that restricts the function of the information terminal according to the current position of the information terminal,
A display for displaying an image;
A storage unit for storing image data with position information to which position information is added,
While displaying the image of the image data with position information on the display unit, the function restriction setting information indicating the content that restricts the function of the own information terminal is specified, and the function restriction setting information is added to the image data with position information An information terminal further comprising function restriction setting means for storing in the storage unit. With multiple applications,
2. The information terminal according to claim 1, wherein the function restriction setting information added to one piece of image data with position information includes contents of function restriction for the plurality of applications.   The image data with position information is associated with second function restriction setting information indicating contents for restricting functions of the own information terminal, which is different from the function restriction setting information added. The information terminal according to claim 1 or 2. The storage unit includes a folder for each of the second function restriction setting information,
The function restriction setting means displays the image data with position information and the folder on the display unit, and assigns the folder to the image data with position information moved to the folder by the user. The information terminal according to claim 3, wherein the second function restriction setting information is associated. Imaging means for imaging and generating image data;
Position acquisition means for acquiring the current position of the self-information terminal when the imaging means captures an image;
An image data with position information generating means for generating the image data with position information by adding the position information acquired by the position acquiring means to the image data generated by the imaging means. Item 5. The information terminal according to any one of Items 1 to 4.   A control program for causing a computer to function as the information terminal according to any one of claims 1 to 5, wherein the control program causes the computer to function as each of the means.   A computer-readable recording medium on which the control program according to claim 6 is recorded. An information terminal control method for restricting the function of the own information terminal according to the current position of the own information terminal,
The information terminal includes a display unit that displays an image, and a storage unit that stores image data with position information to which position information is added.
While displaying the image of the image data with position information on the display unit, the function restriction setting information indicating the content that restricts the function of the own information terminal is specified, and the function restriction setting information is added to the image data with position information And a function restriction setting step of storing in the storage unit.

Images