JP6217487B2 - Mobile terminal and mobile terminal program - Google Patents

Description

    The present invention relates to a mobile terminal and a mobile terminal program.

  For example, in Patent Document 1 below, when the owner of the mobile terminal loses the mobile terminal, the mobile terminal is shifted to an emergency mode in which the mobile terminal cannot be operated by a remote operation, and the owner of the mobile terminal When a portable terminal is found, a technique for releasing the emergency mode of the portable terminal by a remote operation is disclosed.

JP 2012-114699 A

  When the user picks up the mobile terminal, the user can access the data of the mobile terminal without canceling the setting of the emergency state or the like.

  The mobile terminal according to claim 1, wherein when the mobile terminal is picked up, time measurement is started, and the user authentication of the mobile terminal is performed until the measured time passes a preset time. According to the result, an access permission / non-permission determining means for determining whether or not access to all or a part of the data of the portable terminal is included.

  The portable terminal according to claim 2 is the portable terminal according to claim 1, wherein the portable terminal is picked up in an unsafe situation representing a situation in which a user other than a preset user can operate the portable terminal. It is characterized by measuring time.

  The mobile terminal according to claim 3 is the mobile terminal according to claim 1 or 2, wherein the mobile terminal according to claim 1 is an acceleration information measuring unit that measures acceleration information related to an acceleration that represents movement of the mobile terminal, and a position that represents the position of the mobile terminal. Based on the position information acquisition means for acquiring information and the acceleration information and / or the position information, it is determined whether or not it is an unsafe situation representing a situation in which a user other than a preset user can operate the portable terminal. Unsafe situation determining means, picked-up acceleration information related to acceleration when the mobile terminal is picked up are predetermined, picked-up acceleration information acquiring means for acquiring the picked-up acceleration information, the acceleration information, and the picking up Pickup determination means for determining whether or not the portable terminal has been picked up by acceleration information, and user authentication for authenticating a user of the portable terminal And prohibiting access to all or a part of the data in the portable terminal when the user authentication means does not perform the authentication within a period until the measured time passes a preset time. Access prohibiting means, and the measurement of the time is started according to the determination result of the picking-up determination means.

  The portable terminal according to claim 4 is the portable terminal according to claim 3, wherein at least a part of the data of the whole or a part of the data is encrypted, and the whole or a part of the data is It includes a decryption key for canceling encryption, and the access prohibiting means prohibits access to all or a part of the data by deleting the decryption key.

  The portable terminal according to claim 5 is the portable terminal according to claim 3 or 4, wherein the portable terminal further includes an input means for inputting authentication information for authenticating the preset user. In addition, after the acquisition determination unit determines that the portable terminal has been acquired, measurement of the time is started at a timing when the authentication information is input to the input unit.

  The portable terminal according to claim 6 is the portable terminal according to any one of claims 3 to 5, wherein the portable terminal further includes connection means for connecting to an external device different from the portable terminal, and After the determination means determines that the portable terminal has been picked up, the time measurement is started at the timing when the connection is made.

  The portable terminal according to claim 7 is the portable terminal according to any one of claims 1 to 6, wherein the portable terminal is further preset when the user walks with the portable terminal. It has walking acceleration information acquisition means which acquires walking acceleration information about the acceleration of, and performs the authentication by the walking acceleration information and the acceleration information.

  The portable terminal according to claim 8 is the portable terminal according to claim 7, wherein the portable terminal further walks with the portable terminal held by the user based on the walking acceleration information and the acceleration information. A walking condition determining unit that determines whether the user is walking, and the walking condition determining unit determines that the user is walking with the portable terminal, and the walking acceleration information and the acceleration The authentication is performed according to information.

  The portable terminal according to claim 9 is the portable terminal according to claim 8, wherein the picked-up acceleration information includes first and second picked-up acceleration information, and the picked-up determination means includes the first and the second picked-up information. It is determined whether or not the mobile terminal has been picked up based on the picked-up acceleration information and the acceleration information. The walking acceleration information includes first and second walking acceleration information, and the first or second walking acceleration information. And performing the authentication based on the acceleration information.

  The mobile terminal according to claim 10 is the mobile terminal according to claim 9, wherein one of the first or second walking acceleration information, the acceleration information, and the acceleration information are determined according to a determination result of the acquisition determination unit. The authentication is performed by the following.

  The mobile terminal according to claim 11 is the mobile terminal according to claim 10, wherein the mobile terminal further acquires region information set in advance including a plurality of pieces of position information of the mobile terminal. Time information acquisition means for acquiring time information according to the time when the position information acquisition means acquired the position information, the area information, and time information associated with each position information included in the area information Whether or not the unsafe condition is determined by the position information, the time information, and the schedule information. It is characterized by determining.

  The portable terminal according to claim 12 is the portable terminal according to claim 1, wherein when the user of the portable terminal is authenticated before the preset time elapses, the access permission determination unit , Determining permission to access all or part of the data of the portable terminal.

  The portable terminal according to claim 13 is the portable terminal according to claim 1, wherein when the user of the portable terminal is not authenticated before the preset time elapses, the access permission determination unit Determines to deny access to all or part of the data of the portable terminal.

  The portable terminal program according to claim 14 starts time measurement when a portable terminal is picked up, and the user of the portable terminal within a period until a predetermined time elapses. When the authentication is not performed, the program is a program for causing a computer to function, which prohibits access to all or part of data of the portable terminal.

  The communication system according to claim 15 includes a mobile terminal and a server, and the mobile terminal starts measuring time when the mobile terminal is picked up, and the measured time is a preset time. The result of authentication of the user of the mobile terminal performed before elapse of time is transmitted to the server, and the server can access all or part of data of the mobile terminal according to the result of the authentication And the result of the determination is transmitted to the mobile terminal, and access to all or a part of the data of the mobile terminal is permitted or denied according to the determination result acquired by the mobile terminal from the server. It is characterized by that.

  According to the first and twelfth to fifteenth aspects of the present invention, when the user picks up the portable terminal, the user can access the data of the portable terminal without canceling the setting of the emergency state or the like.

  According to the second aspect of the present invention, when a user other than a user who is set in advance picks up the mobile terminal in an unsafe situation indicating a situation in which the user can operate the mobile terminal, the emergency state or the like is canceled. Even without this, the user can access the data of the portable terminal.

  According to the invention of claim 3, in the invention of claim 1 or 2, it is possible to detect only a pickup operation similar to a predetermined pickup operation.

  According to the invention of claim 4, as compared with the invention of claim 3, only data necessary for prohibiting access to data is deleted.

  According to the invention of claim 5, in the invention of claim 3 or 4, access to data is prohibited based on the timing inputted to the input unit.

  According to the invention of claim 6, in the inventions of claims 3 to 5, access to the data is prohibited based on the timing when the portable terminal is connected to the external device.

  According to the invention of claim 7, in the invention of claims 1 to 6, user authentication is performed without performing an input operation.

  According to the invention of claim 8, in the invention of claim 7, when the mobile terminal determines walking, the user authentication is performed based on the walking state.

  According to the invention of claim 9 or 10, in the invention of claim 8, the user is based on a more specific walking state such as a state in which the mobile terminal is walking in a bag or pocket. By performing authentication, the accuracy of user authentication is improved.

  According to the invention of claim 11, in the invention of claim 10, it is determined whether or not access is prohibited when there is a portable terminal other than a preset place and / or time.

It is a figure for demonstrating the outline | summary of a structure of a portable terminal. It is a figure for demonstrating the functional structure of the control part in an Example. It is a figure for demonstrating an example of picking-up acceleration information. It is a figure which shows an example of the flow of the process which the portable terminal in an Example performs. It is a figure for demonstrating the functional structure of the control part in a 1st modification. It is a figure for demonstrating the functional structure of the control part in a 2nd modification. It is a figure which shows an example of the flow of the process which the portable terminal in a 3rd modification performs. It is a figure for demonstrating the functional structure of the control part in a 4th modification. It is a figure for demonstrating another example of picking-up acceleration information. It is a figure for demonstrating an example of related information. It is a figure for demonstrating an example of walking acceleration information. It is a figure which shows an example of the flow of the process which the portable terminal in a 4th modification performs.

[Example]
Embodiments of the present invention will be described below with reference to the drawings. In addition, about drawing, the same code | symbol is attached | subjected to the same or equivalent element, and the overlapping description is abbreviate | omitted. FIG. 1 is a diagram for explaining an outline of the configuration of the mobile terminal 100 according to the present embodiment. The mobile terminal 100 is, for example, a computer such as a mobile phone, a PDA (Personal Digital Assistant), or a tablet terminal operated by a user.

  As shown in FIG. 1, the mobile terminal 100 according to the present embodiment includes a control unit 101, a storage unit 102, a connection unit 103, an input unit 104, a display unit 105, an acceleration information measurement unit 106, and a vibration generation unit 107. Prepare.

  The control unit 101 includes a CPU (Central Processing Unit), executes various arithmetic processes based on a program stored in the storage unit 102, and controls each unit of the mobile terminal 100. Details of the control unit 101 will be described later.

  The storage unit 102 is an information recording medium that includes an information recording medium such as a ROM, a RAM, and a hard disk, and holds a program executed by the control unit 101. The storage unit 102 also operates as a work memory of the control unit 101, for example.

  The connection unit 103 includes a network interface card, for example, and connects to the wireless relay device via the network interface card. The connection unit 103 may be a port such as a USB port for performing a wired connection with an external device, for example.

  The input unit 104 is realized by an input device such as a touch panel and button keys, and receives an operation input from a user.

  The display unit 105 is realized by a display device such as a liquid crystal display, and displays a result (screen) of information processing by the control unit 101.

  The acceleration information measurement unit 106 measures acceleration information related to acceleration representing movement of the mobile terminal 100. Specifically, for example, the acceleration information measurement unit 106 includes an acceleration sensor, and detects acceleration generated by the movement of the mobile terminal 100 at all times or at regular intervals.

  In this embodiment, the acceleration information measurement unit 106 includes an x-axis direction acceleration detection unit (not shown), a y-axis direction acceleration detection unit (not shown), and a z-axis direction acceleration detection unit (not shown). The accelerations in the three directions are detected. For example, the x-axis and y-axis directions are orthogonal to each other and each represents a horizontal direction. The z-axis direction represents the vertical direction in which gravity works.

  The vibration generating unit 107 includes, for example, a weight and a motor that rotates the weight, and vibrates the mobile terminal 100. In addition, the vibration generation unit 107 vibrates for a predetermined time every preset time, for example. The vibration may be started at a timing designated by the control unit 101 and stopped after a certain time.

  The configuration of the mobile terminal 100 is an example and is not limited thereto. For example, the mobile terminal 100 in FIG. 1 includes the input unit 104, the connection unit 103, and the vibration generation unit 107, but may have a configuration that does not include each of them.

  FIG. 2 is a diagram for explaining the control unit 101 of the mobile terminal 100 according to the present embodiment.

  As shown in FIG. 2, for example, the control unit 101 functionally includes a fall acceleration information acquisition unit 201, an unsafe situation determination unit 202, a lock unit 203, a pickup acceleration information acquisition unit 204, a pickup determination unit 205, and a timer 206. A user authentication unit 207 and an access prohibition unit 208.

  The fall acceleration information acquisition unit 201 acquires preset fall acceleration information related to acceleration when the mobile terminal 100 falls. For example, the fall acceleration information represents an acceleration generated in the mobile terminal 100 when the mobile terminal 100 possessed by the user falls. The fall acceleration information is information stored in advance in the storage unit 102. Then, the fall acceleration information acquisition unit 201 acquires the fall acceleration information from the storage unit 102. Specifically, for example, the fall acceleration information acquisition unit 201 acquires the fall acceleration information “x axis: 0, y axis: 0, z axis: 9.8” represented by the gravitational acceleration.

  Based on the acceleration information and / or the position information, the unsafe situation determination unit 202 determines whether or not the unsafe situation represents a situation in which a user other than the preset user can operate the mobile terminal 100. The unsafe situation represents, for example, a situation in which a legitimate user loses the portable terminal 100 and a user other than the legitimate user may operate the portable terminal 100.

  Specifically, for example, the unsafe situation determination unit 202 compares the acceleration information with the gravitational acceleration information. Is determined to be an unsafe situation where it can be operated. In other words, the unsafe situation determination unit 202 determines that an unsafe situation occurs when the mobile terminal 100 falls from the user's pocket.

  As in the above example, the fall acceleration information acquisition unit 201 acquires the fall acceleration information “x axis: 0, y axis: 0, z axis: 9.8”, and the acceleration information measurement unit 106 sets the “x axis”. : 0, y-axis: 0, z-axis: 9.8 "is measured, the acceleration information and the fall acceleration information are the same. Therefore, the unsafe situation determination unit 202 determines that it is an unsafe situation. . Note that the unsafe situation determination unit 202 may determine by comparing only the magnitude of the numerical value in the z-axis direction.

  The unsafe situation determination unit 202 may determine whether or not the unsafe situation is based on the material of the object on which the mobile terminal 100 is placed. For example, the unsafe situation determination unit 202 determines an unsafe situation when the mobile terminal 100 is on a soft material object such as a chair or a carpet, and the mobile terminal 100 is placed on a hard material object such as a desk. It may be determined that there is no unsafe situation in some cases.

  Specifically, for example, first, the vibration generation unit 107 vibrates the mobile terminal 100, and the acceleration information measurement unit 106 measures acceleration information generated in the mobile terminal 100. Then, the unsafe situation determination unit 202 determines whether or not the situation is an unsafe situation by using the fact that the acceleration information is different between the case where the acceleration information is on a soft material object and the case where the acceleration information is on a hard material object. You may go. That is, when the mobile terminal 100 is on a chair, a carpet, or the like, a situation in which the user forgets to place the mobile terminal 100 is assumed. On the other hand, when the mobile terminal 100 is on a desk or the like, a situation where the user intentionally places it is assumed. Therefore, when the mobile terminal 100 is on a chair or a carpet, the unsafe situation determination unit 202 determines that the situation is unsafe, and when the mobile terminal 100 is on a desk or the like, the unsafe situation determination The unit 202 determines that the situation is safe. In addition, since the technique which specifies the material of the object in which the portable terminal 100 is placed uses a known technique, description is abbreviate | omitted here.

  Further, the unsafe situation determination unit 202 may determine whether or not the unsafe situation is based on whether or not the mobile terminal 100 is operated during a predetermined period. Specifically, for example, when the input unit 104 does not receive a new operation input within a predetermined period from the last timing at which an operation input from the user is received, the unsafe situation determination unit 202 It may be determined as an unsafe situation.

  The lock unit 203 locks the mobile terminal 100 based on the determination result of the unsafe situation determination unit 202. Specifically, for example, the lock unit 203 instructs the display unit 105 to display a screen for entering a password when the unsafe state determination unit 202 determines that the state is an unsafe state. . Upon receiving this instruction, the display unit 105 displays a password input screen. And until the user authentication part 207 mentioned later authenticates a user, the portable terminal 100 will be in the locked state which cannot perform operation except operation required for authentication.

  The picked-up acceleration information acquisition unit 204 acquires picked-up acceleration information related to acceleration when a preset mobile terminal 100 is picked up. For example, the picked-up acceleration information represents acceleration generated in the mobile terminal 100 when the mobile terminal 100 that is not worn by the user (for example, placed on a desk or chair) is picked up by a human hand. , Information stored in advance in the storage unit 102. Specifically, for example, the picked-up acceleration information acquisition unit 204 acquires picked-up acceleration information represented by numerical values “x axis: 1, y axis: 1, z axis: 4”.

  The picked-up acceleration information acquisition unit 204 may acquire picked-up acceleration information related to acceleration when the mobile terminal 100 that is set in advance is picked up by a waveform. Specifically, for example, the picked-up acceleration information acquisition unit 204 acquires picked-up acceleration information as shown in the upper diagram of FIG.

  Here, the upper diagram in FIG. 3 represents changes in acceleration in the x-axis direction, the y-axis direction, and the z-axis direction that occur when the user performs an operation of picking up the mobile terminal 100. The picked-up acceleration information shown in the upper diagram of FIG. 3 is information stored in the storage unit 102 in advance. 3 shows the acceleration information in the x-axis direction, the y-axis direction, and the z-axis direction measured by the acceleration information measurement unit when the user performs an operation of picking up the mobile terminal 100.

  Based on the acceleration information and the picked-up acceleration information, the pick-up determining unit 205 determines whether the portable terminal 100 has been picked up. For example, the pick-up determination unit 205 determines that the mobile terminal 100 has been picked up when the acceleration information is a numerical value greater than or equal to the value represented by the pick-up acceleration information or within the numerical value range represented by the pick-up acceleration information.

  Specifically, the acceleration information measuring unit 106 measures acceleration information “x axis: 2, y axis: 2, z axis: 5”, and the picked-up acceleration information acquisition unit 204 reads “x axis: 1, y axis: The case where the picked-up acceleration information “1, z-axis: 4” is acquired will be described. In this case, the acceleration information is larger than the picked-up acceleration information. Accordingly, the pick-up determination unit 205 determines that the mobile terminal 100 has been picked up.

  Note that the values in the x-axis direction, the y-axis direction, and the z-axis direction included in the picked-up acceleration information may be different or the same. In addition, for example, the acquisition determination unit 205 may perform determination using only some of the numerical values in the x-axis direction, the y-axis direction, and the z-axis direction. For example, the acquisition determination unit 205 may use only the value in the z direction in which gravity is applied for determination, and may perform the determination without using the values in the x and y axis directions.

  Further, the pick-up determination unit 205 may determine whether or not the mobile terminal 100 has been picked up based on the shape of the waveform represented by the time change of the acceleration information in a certain period and the pick-up acceleration information represented by the waveform. . A case where the picked-up acceleration information acquiring unit 204 acquires picked-up acceleration information as shown in the upper diagram of FIG. 3 and the acceleration measuring unit acquires acceleration information as shown in the lower diagram of FIG. .

  In this case, the acquisition determination unit 205 compares the waveform shape in the upper diagram of FIG. 3 with the waveform shape in the lower diagram of FIG. 3, and if the similarity of the waveforms is greater than a predetermined threshold, the portable terminal 100 is detected. judge. In the above example, if the similarity between the waveforms in the upper diagram of FIG. 3 and the lower diagram of FIG. 3 is 10 and the predetermined threshold is 5, the pick-up determination unit 205 determines that the mobile terminal 100 has been picked up. Note that a method for calculating the similarity of the waveform shape uses a known technique, and thus description thereof is omitted here.

  Furthermore, the pick-up determination unit 205 may determine whether or not the mobile terminal 100 has been picked up using a known technique. Specifically, for example, when the portable terminal 100 has a temperature detection unit (not shown) that detects the temperature, the detection is performed when the temperature detected by the temperature detection unit changes when a person touches the portable terminal. The determination unit 205 may determine that the mobile terminal 100 has been picked up. In addition, for example, when the vibration generating unit vibrates the portable terminal 100 for each predetermined period and the acceleration information measurement unit 106 measures the vibration, the result measured for each predetermined period changes. The pick-up determination unit 205 may determine that the mobile terminal 100 has been picked up.

  The timer 206 starts measuring time according to the determination result of the unsafe condition determination unit 202. Specifically, for example, the timer 206 measures the elapsed time from the time when the pick-up determination unit 205 determines that the mobile terminal 100 has been picked up.

  The user authentication unit 207 authenticates the user of the mobile terminal 100. Specifically, for example, the user authentication unit 207 is a regular user who owns or operates the mobile terminal 100 based on a publicly known technique such as a user ID, password, and fingerprint authentication input to the input unit 104. Authenticate whether or not.

  The access prohibition unit 208 applies to all or a part of the data in the mobile terminal 100 when the user authentication unit does not perform authentication within a period until the time measured by the timer 206 passes a preset time. Prohibit access. For example, the access prohibition unit compares the time measured by the timer 206 with the time stored in advance in the storage unit 102. Then, if the time measured by the timer 206 exceeds a preset time, the access prohibition unit 208 deletes all or a part of the data stored in the storage unit 102, thereby all or part of the data. Access to the data is prohibited.

  Here, the preset time is set based on the time required to perform user authentication and the time required to unlock the mobile terminal 100 by an unauthorized method. The time required for performing user authentication is determined based on, for example, an average time represented by a measurement result obtained by measuring the time required for an authorized user to perform authentication work a plurality of times in advance. The time required to unlock the mobile terminal 100 by an unauthorized method is, for example, the average time represented by the measurement result obtained by measuring the time required for the user other than the authorized user to release the lock by cracking a plurality of times. It is decided based on the time. Specifically, for example, the preset time is set to be longer than the time required for an authorized user to input a password and shorter than the time required for an unauthorized user to crack the mobile terminal 100. Is done.

  That is, the time until the access prohibition unit 208 prohibits access to the data is sufficient for an authorized user to input a password. On the other hand, the time until the access prohibition unit 208 prohibits access to the data is insufficient for an unauthorized user to unlock the mobile terminal 100 by cracking.

  The access prohibition unit 208 may prohibit access to all or part of the data in the mobile terminal 100 by deleting the decryption key when all or part of the data is encrypted. Good. Here, the decryption key is information included in a part of data, and is data for decrypting all or part of the encrypted data.

  Specifically, for example, the data in the mobile terminal 100 includes information other than the decryption key, and includes confidential data subjected to encryption processing and data related to a password for canceling the encryption processing. Will be described. In this case, the access prohibition unit 208 prohibits access to confidential data by deleting data related to the password. That is, if there is no password, the process of encrypting the confidential information is not released, and access to information other than the decryption key included in the confidential data is prohibited.

  Further, when the data in the storage unit 102 includes data necessary for connection between the portable terminal 100 and the external device, and the external device holds the data, the access prohibition unit deletes the data in the storage unit 102. Accordingly, access to data held by the external device may be prohibited. The data in the storage unit 102 includes data encrypted necessary for connection between the mobile terminal 100 and an external device, and a decryption key for releasing the encryption, and the access prohibiting unit deletes the decryption key. Accordingly, access to data held by the external device may be prohibited.

  Next, processing performed by the mobile terminal 100 will be described using a flowchart. FIG. 4 is a processing flow performed by the mobile terminal 100 in the present embodiment. The following flow is an example, and the present embodiment is not limited to this.

  First, the fall acceleration information acquisition unit 201 acquires fall acceleration information (S401). Next, the acceleration information measuring unit 106 measures acceleration information (S402). Next, the unsafe situation determination unit 202 determines whether or not it is an unsafe situation based on the acceleration information and the fall acceleration information (S403). When the unsafe situation determination unit 202 determines that the situation is unsafe, the process proceeds to S404, and when it is determined that the situation is not unsafe, the process proceeds to S401.

  When the unsafe situation determination unit 202 determines that the situation is unsafe, the lock unit 203 locks the mobile terminal 100 (S404). Next, the picked-up acceleration information acquisition unit 204 acquires picked-up acceleration information (S405).

  Next, the acceleration information measuring unit 106 measures acceleration information (S406). Next, the pick-up determination unit 205 determines whether the mobile terminal 100 has been picked up based on the acceleration information and the pick-up acceleration information (S407). If the pick-up determination unit 205 determines that it has been picked up, the process proceeds to S408. If it is determined that the pick-up has not been picked up, the process proceeds to S405.

  When the pick-up determination unit 205 determines that the mobile terminal 100 has been picked up, the timer 206 starts measuring time (S408). Next, if the time measured by the timer 206 exceeds the preset time, the process proceeds to S410, and if it is within the preset time, the process proceeds to S411 (S409).

  In S409, when the time measured by the timer 206 exceeds a preset time, the access prohibition unit 208 prohibits access to all or a part of the data in the mobile terminal 100 (S410). By S410, the portable terminal 100 ends the above series of processing.

  In S409, when the time measured by the timer 206 is within a preset time, the user authentication unit 207 authenticates the user of the mobile terminal 100 (S411). If the user authentication unit 207 authenticates a regular user, the process proceeds to S412. If the user authentication unit 207 does not authenticate a regular user, the process proceeds to S409.

  If the user authentication unit 207 authenticates the user of the mobile terminal 100 in S411, the lock unit 203 unlocks the mobile terminal 100 (S412). After S412, the mobile terminal ends a series of processes. In this case, unlike the case where access is prohibited in S412, the portable terminal completes a series of processes and then performs a series of processes from the start again in the same manner as described above.

  In addition, a present Example is not limited to said Example, A various deformation | transformation is possible. For example, in the present embodiment, S401 and S402 are out of order, and may be performed interchangeably. Similarly, in this embodiment, S405 and S406 are out of order, and may be exchanged. Further, in the present embodiment, it is not necessary to determine whether or not an unsafe situation exists. Specifically, for example, the mobile terminal may start the process from step S404 without executing steps S401 to S403.

[First Modification]
Then, the 1st modification of this invention is demonstrated. In this modification, the control unit 101 further includes a position information acquisition unit 501 and a region information acquisition unit 502 functionally, and the unsafe situation determination unit 202 makes a determination based on the position information and the region information. This is different from the embodiment. Description of items that are the same as in the embodiment will be omitted.

  As shown in FIG. 5, the control unit 101 of this modification functionally includes a position information acquisition unit 501, a region information acquisition unit 502, a fall acceleration information acquisition unit 201, an unsafe situation determination unit 202, a lock unit 203, A pickup acceleration information acquisition unit 204, a pickup determination unit 205, a timer 206, a user authentication unit 207, and an access prohibition unit 208 are included. In addition, since each part other than the position information acquisition part 501 and the area | region information acquisition part 502 in this modification is the same as each part in an Example, description is abbreviate | omitted.

  The position information acquisition unit 501 acquires information related to the position of the mobile terminal 100. Specifically, for example, the position information acquisition unit 501 uses a system that generates position information such as PHS and GPS, and represents the current position of the mobile terminal 100 “latitude: 60.20, longitude: 121.30. Is acquired.

  The area information acquisition unit 502 acquires preset area information including a plurality of pieces of position information of the mobile terminal 100. The area information is information representing an area set by a legitimate user as a place where the mobile terminal 100 is used, and is information set in advance in the storage unit 102 or the like.

  Specifically, for example, the region information acquisition unit 502 includes region information represented by latitude and longitude of “latitude: 60.25, longitude: 121.35” and “latitude: 60.26, longitude: 121.36”. To get. Note that the area information acquisition unit 502 may acquire area information representing a certain range of position information. For example, the region information acquisition unit 502 may acquire the region information “latitude: 60.25 to 60.26, longitude: 121.35 to 121.36”.

  Based on the position information, the unsafe situation determination unit 202 determines whether or not the unsafe situation represents a situation in which a user other than a preset user can operate the mobile terminal 100. For example, the unsafe situation determination unit 202 determines whether the position information acquired by the position information acquisition unit 501 is in an unsafe situation based on whether the position information acquired by the area information acquisition unit 502 is included. To do.

  Specifically, for example, as described above, the position information is “latitude: 60.20, longitude: 121.30”, and the area information is “latitude: 60.25, longitude: 121.35” and “latitude”. : 60.26, longitude: 121.36 ", the position information is not included in the area information. Therefore, the unsafe situation determination unit 202 determines that the mobile terminal 100 is in an unsafe situation.

  Subsequently, a flow of processing performed by the mobile terminal 100 in the present modification will be described. First, the position information acquisition unit 501 acquires position information. Next, the area information acquisition unit 502 acquires area information. And the unsafe condition determination part 202 determines whether it is an unsafe condition based on position information and area | region information. Since the subsequent processing is the same as that after S404 in the embodiment, description thereof is omitted.

  In addition, in this modification, although the case where the unsafe situation determination part 202 determined whether it was an unsafe situation based on position information and area | region information was demonstrated, as in an Example, an unsafe situation determination part When 202 determines whether it is an unsafe situation based on acceleration information and fall acceleration information, or the unsafe situation determination part 202 is unsafe based on the material of the object in which the portable terminal 100 is placed. You may combine with the case where it is determined whether it is a situation.

[Second Modification]
Then, the 2nd modification of this invention is demonstrated. In this modification, the control unit 101 is functionally further provided with a time information acquisition unit 601 and a schedule information acquisition unit 602, and the unsafe situation determination unit 202 includes position information, time information, and schedule information. The point which performs determination based on differs from an example and the 1st modification. The description overlapping with the embodiment and the first modification is omitted.

  As shown in FIG. 6, the control unit 101 of this modification functionally includes a position information acquisition unit 501, a time information acquisition unit 601, a region information acquisition unit 502, a schedule information acquisition unit 602, and a fall acceleration information acquisition unit 201. , Unsafe situation determination unit 202, lock unit 203, pick-up acceleration information acquisition unit 204, pick-up determination unit 205, timer 206, user authentication unit 207, and access prohibition unit 208. In addition, since each part other than the time information acquisition part 601 in this modification, the schedule information acquisition part 602, and the unsafe condition determination part 202 is respectively the same as each part in an Example or a 1st modification, it demonstrates. Omitted.

  The time information acquisition unit 601 acquires time information corresponding to the time when the position information is acquired. Specifically, for example, when the position information acquisition unit 501 acquires the position information, the time information acquisition unit 601 determines that “the date of acquisition of the position information is January 16, 2014, 10:00 am Time information representing the time “is acquired.

  The schedule information acquisition unit 602 acquires preset schedule information including area information including a plurality of pieces of position information of the mobile terminal 100 and time information associated with each position information included in the area information. That is, the schedule information is information regarding a schedule indicating when and where a legitimate user has the portable terminal 100 and is set in the storage unit 102 or the like in advance by the legitimate user. For example, the schedule information includes area information indicating a plurality of positions where a legitimate user has the mobile terminal 100 and time information indicating a time when the user is at the position.

  Specifically, the schedule information acquisition unit 602 reads “January 16, 2014, 9:00 am to 2:00 pm, latitude: 60.20, longitude: 121.30, latitude: 60.30, longitude : 121.40 "," January 16, 2014 from 2:00 pm to 5:00 pm, latitude: 60.30, longitude: 121.40, latitude: 60.40, longitude: 121.50 ", etc. The schedule information in which the time information and the area information are associated with each other is acquired. Note that the area information included in the schedule information may be information representing a certain range of position information, as in the first modification.

  The unsafe situation determination unit 202 determines whether or not the situation is unsafe based on the position information, time information, and schedule information. Specifically, the case where the position information acquisition unit 501 acquires the position information “latitude: 60.10, longitude: 121.30” in the case of the above example will be described.

  First, the unsafe situation determination unit 202 compares the time information with the schedule information, and extracts area information corresponding to the time information acquired by the time information acquisition unit 601 from the schedule information. Here, the schedule information corresponding to the time information “January 16, 2014, 10:00 am” is “from January 16, 2014, 9:00 am to 2:00 pm, latitude: 60. 20, longitude: 121.30, latitude: 60.30, longitude: 121.40 ". Therefore, the unsafe situation determination unit 202 extracts area information “latitude: 60.20, longitude: 121.30, latitude: 60.30, longitude: 121.40”.

  Furthermore, the unsafe situation determination unit 202 performs the same determination as that of the first modification based on the extracted region information and the position information acquired by the position information acquisition unit 501. In the case of the above example, the position information “latitude: 60.10, longitude: 121.30” is “latitude: 60.20, longitude: 121.30, latitude: 60.30, longitude: 121.40”. Therefore, the unsafe situation determination unit 202 determines that the situation is unsafe.

  Subsequently, a flow of processing performed by the mobile terminal 100 in the present modification will be described. First, the position information acquisition unit 501 acquires position information. Next, the time information acquisition unit 601 acquires time information. Next, the schedule information acquisition unit 602 acquires schedule information. And the unsafe condition determination part 202 determines whether it is an unsafe condition based on position information, time information, and schedule information. Since the subsequent processing is the same as that after S404 in the embodiment, description thereof is omitted.

  In addition, in this modified example, although the case where the unsafe situation determination part 202 determined whether it was an unsafe situation based on a positional information, time information, and schedule information was demonstrated, the unsafe situation determination part 202 is You may determine whether it is an unsafe situation based only on time information and the preset time. For example, the unsafe situation determination unit 202 may determine that an unsafe situation occurs when the time information acquired by the time information acquisition unit 601 has passed the time represented by the time information preset in the storage unit or the like. Good.

  Further, in this modification, as in the embodiment, when the unsafe situation determination unit 202 determines whether or not the unsafe situation is based on the acceleration information and the fall acceleration information, the unsafe situation determination unit 202 You may combine with the case where it is determined whether it is an unsafe situation based on the material of the object in which the portable terminal 100 is placed.

[Third Modification]
Then, the 3rd modification of this invention is demonstrated. Description of items that overlap with the above description is omitted. The modification and the embodiment are different in the timing at which the timer 206 starts measuring time and the timing at which the access prohibition unit 208 prohibits access to the data in the mobile terminal 100 using the measurement time.

  In this modification, the timer 206 starts measuring time (hereinafter referred to as a first time) based on the determination result of the unsafe situation determination unit 202, and further, inputs or connections to the input unit 104 Based on the connection made by the unit 103, a new time measurement is started (hereinafter referred to as a second time).

  For example, the timer 206 measures the elapsed first time from the time when the pick-up determination unit 205 determines that the mobile terminal 100 has been picked up. Furthermore, the timer 206 measures the elapsed second time from the time when the touch operation is performed on the input unit 104 such as a touch panel. Specifically, for example, when an unauthorized user attempts to unlock the mobile terminal 100 illegally by a method such as cracking, the second time is set at the timing when the unauthorized user starts touching the touch panel. Measurement is started.

  Note that the timer 206 may measure the elapsed second time from the time when the external device is connected to the connection unit 103 instead of the time when the input to the input unit 104 is made. Further, the number of timers 206 may be one or two or more. For example, when there is one timer 206, the one timer 206 measures the first and second times. For example, when there are two or more timers, one of the two or more timers 206 measures the first time, and a timer 206 different from the one timer 206 calculates the second time. You may measure.

  When the user authentication unit does not perform authentication within a period until the first time passes a preset time (hereinafter referred to as the first set time), the access prohibition unit 208 Access to all or part of data is prohibited. Furthermore, the access prohibition unit 208 determines that the mobile terminal 100 does not authenticate the user authentication unit within a period until the second time passes a preset time (hereinafter referred to as a second set time). Access to all or part of the data is prohibited.

  Here, the first set time is set based on, for example, an average time that elapses after a legitimate user picks up the mobile terminal 100 and performs an input operation on the input unit 104 or the like. . The average time is set based on the average time of measurement results, for example, by measuring a plurality of times in advance from when a legitimate user picks up the mobile terminal until an operation to the input unit 104 is performed. . Similarly to the embodiment, the second set time is set based on the time required to perform user authentication and the time required to unlock the mobile terminal 100 by an unauthorized method.

  Subsequently, a difference between the preset time in the embodiment and the first and second set times in the present modification will be described.

  For example, a case where a legitimate user picks up the portable terminal 100 in an unsafe situation, holds it for a certain period without performing input to the input unit 104, and then performs input to the input unit 104 will be described. . In this case, in the embodiment, the preset time is set to be a time that is a sum of a certain period in which the user has the portable terminal 100 and a time required for inputting the password. On the other hand, in the present modification, the first set time is set to be a time for the user to carry the portable terminal 100, and the second set time is set to be a time required for inputting the password. Is done.

  By setting as described above, the timing of starting the measurement of the second time in the second modification example is more suitable for the non-regular user to crack, etc. than the timing of starting the time measurement in the embodiment. Approaching the timing to start. Therefore, by setting the second setting time in the second modification shorter than the setting time in the embodiment, an unauthorized user in the second modification can lock the mobile terminal 100 by a technique such as cracking. The time to cancel becomes shorter than the time in the embodiment. Therefore, this modified example has higher safety than the example.

  Further, as described above, the first set time is set after measuring in advance the time from when the portable terminal 100 is picked up until the input to the input unit 104 or the like is made. For this reason, the first set time in the second modification is longer than the set time of the embodiment until the legitimate user picks up the portable terminal 100 and performs an input operation or the like to the input unit 104. To get closer to the average time. Therefore, when an unauthorized user has possessed the mobile terminal 100 for a time longer than the first set time after having picked up the mobile terminal 100, access to the data in the mobile terminal 100 is prohibited. The example is more secure than the example.

  Next, processing performed by the mobile terminal 100 in the present modification will be described using a flowchart. FIG. 7 is a processing flow performed by the mobile terminal 100 according to this modification. The following flow is an example, and the present modification is not limited to this.

  The steps S701 to S707 are the same as the steps S401 to S407 in the embodiment, and thus description thereof is omitted.

  Next, when the pick-up determination unit 205 determines that the mobile terminal 100 has been picked up, the timer 206 starts measuring the first time (S708). Next, if the first time exceeds the first set time, the process proceeds to S710, and if it is within the first set time, the process proceeds to S711 (S709).

  In S709, when the first time exceeds the first set time, the access prohibition unit 208 prohibits access to all or a part of the data in the mobile terminal 100 (S710). Thereafter, the mobile terminal 100 ends the process.

  On the other hand, in S709, when a touch operation is performed on the input unit 104 such as a touch panel within the first set time or when the connection unit 103 is connected to an external device, the process proceeds to S712. On the other hand, if the touch operation is not performed or if not connected, the process proceeds to S709 (S711).

  Next, in S711, when a touch operation is performed on the input unit 104 such as a touch panel or when the connection unit 103 is connected to an external device, the timer 206 starts measuring the second time (S712). .

  In S713, when the second time exceeds the second set time, the access prohibition unit 208 prohibits access to all or a part of the data in the mobile terminal 100 (S714). By S714, the portable terminal 100 ends the process.

  In S713, when the second time is within the second set time, the user authentication unit 207 authenticates the user of the mobile terminal 100 (S715). If the user authentication unit 207 authenticates a regular user, the process proceeds to S716. If the user authentication unit 207 does not authenticate a regular user, the process proceeds to S713.

  If the user authentication unit 207 authenticates the user of the mobile terminal 100 in S715, the lock unit 203 unlocks the mobile terminal 100 (S716). After S716, the mobile terminal ends the series of processes. In this case, unlike the case where access is prohibited in S710 and S716, the portable terminal completes a series of processes and then performs a series of processes from the start again as described above.

  The present modification is not limited to the above, and various modifications can be made. For example, as in the embodiment, in this modification, S701 and S702, and S705 and S706 are out of order, and it is not determined whether or not an unsafe situation exists, and the process may be started from step S704. . Moreover, in the above, although the case where this modification was implemented in combination with an Example was demonstrated, this modification may further be implemented in combination with one or both of Modification 1 and Modification 2.

[Fourth Modification]
Then, the 4th modification of this invention is demonstrated. The present modification and the above-described embodiment are functionally different in that the control unit 101 further includes an acquisition method information acquisition unit 801, a walking acceleration information acquisition unit 803, and a related information acquisition unit 802. Further, in the present modification and the above-described embodiment, the pick-up acceleration information acquisition unit 204 acquires one or a plurality of pick-up acceleration information, and the user authentication unit 207 authenticates the user based on walking acceleration information described later. The point to do is different. A description of items that are the same as those in the above-described embodiment is omitted.

  As shown in FIG. 8, the control unit 101 of this modification functionally includes a position information acquisition unit 501, a time information acquisition unit 601, a region information acquisition unit 502, a schedule information acquisition unit 602, and a fall acceleration information acquisition unit 201. , Unsafe situation determination unit 202, lock unit 203, pick-up acceleration information acquisition unit 204, pick-up determination unit 205, pick-up method information acquisition unit 801, timer 206, related information acquisition unit 802, walking acceleration information acquisition unit 803, user authentication unit 207 and an access prohibition unit 208.

  The picked-up acceleration information acquisition unit 204 acquires a plurality of picked-up acceleration information represented by waveforms. The plurality of picked-up acceleration information represents acceleration generated in the mobile terminal 100 when the mobile terminal 100 is picked up by different picking methods, and is information stored in the storage unit 102 in advance. Then, the pickup acceleration information acquisition unit 204 acquires the plurality of pickup acceleration information. Examples of the method of picking up the mobile terminal 100 include a method in which the user picks up the mobile terminal 100 and puts it in a pocket, a method of putting it in a bag, and the like.

  Specifically, for example, the picked-up acceleration information acquisition unit 204 acquires picked-up acceleration information as shown in the upper diagrams of FIGS. 3 and 9. Here, the upper diagram of FIG. 9 represents changes in acceleration in the x-axis direction, the y-axis direction, and the z-axis direction, which occur when the user performs a series of operations of picking up the portable terminal 100 and putting it in the pocket. The picked-up acceleration information shown in the upper diagram of FIG. 9 is stored in the storage unit 102 in advance. 9 shows acceleration information in the x-axis direction, the y-axis direction, and the z-axis direction measured by the acceleration information measuring unit when the user performs a series of operations for picking up the portable terminal 100 and putting it in the pocket. . In the present modification, the upper diagram in FIG. 3 and the lower diagram in FIG. 3 represent acceleration information and picked-up acceleration information when the user performs a series of operations for picking up the portable terminal 100 and putting it in the bag, respectively. Although details will be described later, the picking-up acceleration information acquisition unit 204 may acquire only one piece of picking-up acceleration information represented by a waveform, as in the embodiment.

  The pick-up determination unit 205 determines whether the mobile terminal 100 has been picked up based on the acceleration information and the plurality of pick-up acceleration information. For example, the pick-up determination unit 205 sequentially compares the acceleration information and a plurality of pick-up acceleration information, and when there is pick-up acceleration information having a similarity higher than a predetermined threshold, based on the pick-up acceleration information, the mobile terminal It is determined that 100 has been picked up. Further, the pick-up determination unit 205 compares the acceleration information with a plurality of picked-up acceleration information, and the highest or lowest similarity among the similarities between the acceleration information and the picked-up acceleration information is higher than a preset threshold value. In this case, it may be determined that the portable terminal 100 has been picked up.

  For example, the picked-up acceleration information acquisition unit 204 acquires picked-up acceleration information as shown in the upper diagram of FIG. 3 and the upper diagram of FIG. 9, and the acceleration measuring unit acquires acceleration information as shown in the lower diagram of FIG. To do.

  In this case, first, the determination determining unit 205 compares the waveform shape of the acceleration information shown in the lower diagram of FIG. 3 with the waveform shape of the acquired acceleration information shown in the upper diagram of FIG. Here, for example, it is assumed that the similarity between the waveforms in the upper diagram of FIG. Next, the pick-up determination unit 205 compares the waveform shape of the acceleration information shown in the lower diagram of FIG. 3 with the shape of the waveform of the pick-up acceleration information shown in the upper diagram of FIG. Thus, for example, it is assumed that the similarity between the waveforms in the upper diagram of FIG. If the preset threshold value is 5, since the similarity determination unit 205 has a waveform similarity of 10 in the upper diagram of FIG. 3 and the lower diagram of FIG. Based on the above, it is determined that the portable terminal 100 has been picked up.

  The pickup method information acquisition unit 801 acquires the pickup method information based on the determination result of the pickup determination unit 205. The picking-up method information is information indicating which picking acceleration information the picking-up determination unit 205 has performed the picking-up determination from among the plurality of picking-up acceleration information.

  Specifically, for example, it is assumed that the identifier “A1” is given to the picked-up acceleration information shown in the upper diagram of FIG. 3 and the identifier “A2” is given to the picked-up acceleration information shown in the upper diagram of FIG. In this case, as described above, if the pickup determination unit 205 determines that the pickup has been picked up based on the pickup acceleration information shown in the upper diagram of FIG. 3, the pickup acceleration information shown in the upper drawing of FIG. Since the identifier is given, the pickup method information acquisition unit 801 acquires the pickup method information “A1”.

  The related information acquisition unit 802 acquires related information in which the picked-up acceleration information is associated with walking acceleration information described later. The walking acceleration information is information relating to acceleration generated when the user walks while holding the mobile terminal 100 after the mobile terminal 100 is picked up, and is information stored in the storage unit 102 or the like in advance. The related information is information in which the picking method information is associated with the walking acceleration information after being picked up by the picking method represented by the picking method information. The related information is information set in advance, for example, information stored in the storage unit 102 or the like.

  Specifically, for example, the related information acquisition unit 802 acquires related information as illustrated in FIG. The first column in FIG. 10 represents a place where the mobile terminal exists after the mobile terminal 100 is picked up. The second and third columns in FIG. 10 represent picking-up method information and walking acceleration information. The second to fourth lines in FIG. 10 represent information related to bags, pockets, and pouches, respectively.

  In the second column of FIG. 10, identifiers “A1”, “A2”, and “A3” are included in the picked-up acceleration information when the mobile terminal 100 is picked up by the bag, the pocket, and the pouch, respectively. Indicates that it has been granted. Further, the third column in FIG. 10 shows “B1”, “B2”, and “B3” in the walking acceleration information when the mobile terminal 100 walks in the bag, pocket, and pouch, respectively. This means that the identifier is given.

  The related information illustrated in FIG. 10 indicates that the acquisition method information “A1” to “A3” and the walking acceleration information “B1” to “B3” are associated with each other.

  The walking acceleration information acquisition unit 803 acquires walking acceleration information based on the determination result of the acquisition determination unit 205. The walking acceleration information is as described above.

  Specifically, for example, the upper diagram, the middle diagram, and the lower diagram in FIG. 11 represent walking acceleration information when a legitimate user walks with the portable terminal 100 in a bag, a pocket, and a pouch, respectively. In addition, as described above, the following explanation will be given on the assumption that identifiers “B1” to “B3” are assigned to the walking acceleration information represented by the upper, middle, and lower diagrams in FIG.

  And the walking acceleration information acquisition part 803 acquires the walking acceleration information linked | related with the acquisition method information which the acquisition information acquisition part acquired, for example. That is, the walking acceleration information acquired by the walking acceleration information acquisition unit 803 is picked up by the picking method represented by the picking method information, and then occurs in the portable terminal 100 when the user walks while holding the portable terminal 100. Represents information about acceleration. Specifically, for example, when the related information acquisition unit 802 acquires the related information illustrated in FIG. 10 and the picking method information acquiring unit 801 acquires the picking method information “A1”, the walking acceleration information acquiring unit 803 The walking acceleration information to which the identifier “B1” is assigned is acquired.

  In the above description, the walking acceleration information acquisition unit 803 acquires the walking acceleration information based on the determination result of the acquisition determination unit 205, but is not limited thereto. For example, the walking acceleration information acquisition unit 803 may acquire all or part of preset walking acceleration information from a storage unit or the like. Specifically, for example, the walking acceleration information acquisition unit 803 may acquire all the three walking acceleration information shown in FIG.

  The user authentication unit 207 authenticates the user of the mobile terminal 100 based on the walking acceleration information acquired by the walking acceleration information acquisition unit 803. For example, the user authentication unit 207 compares the walking acceleration information with the acceleration information measured by the acceleration information measurement unit 106, and authenticates the user if the waveform similarity is greater than a predetermined threshold.

  That is, since the acceleration that occurs when a legitimate user walks and the acceleration that occurs when a non-regular user walks are different, the user authentication unit 207 determines that the acceleration information is similar to preset walking acceleration information. Authenticate users. Specifically, in the above example, the user authentication unit 207 performs user authentication based on the similarity between the walking acceleration information illustrated in the upper diagram of FIG. 11 and the acceleration information measured by the acceleration information measurement unit 106.

  Note that the user authentication unit 207 performs user authentication using all or a part of the walking acceleration information acquired from the storage unit by the walking acceleration information acquisition unit 803 without being based on the determination result of the acquisition determination unit 205. Also good. Specifically, a case where the walking acceleration information acquisition unit 803 acquires all three walking acceleration information shown in FIG. 11 as in the above example will be described.

  In this case, for example, the user authentication unit 207 compares the three walking acceleration information and the acceleration information measured by the acceleration information measuring unit 106 in order, and finds the walking acceleration information larger than a predetermined threshold value. Authentication may be performed. In addition, for example, the user authentication unit 207 may compare the acceleration information with all three walking acceleration information, and may authenticate the user when at least one walking acceleration information larger than a predetermined threshold exists. .

  Next, processing performed by the mobile terminal 100 will be described using a flowchart. FIG. 12 is a processing flow performed by the mobile terminal 100 in the present modification. The following flow is an example, and the present embodiment is not limited to this.

  Since steps S1201 to S1207 are the same as the steps S401 to S407 in the embodiment, the description is omitted.

  When the pick-up determination unit 205 determines that the mobile terminal 100 has been picked up, the timer 206 starts measuring time (S1208). Next, the picking method information acquisition unit 801 acquires picking method information (S1209). Next, the related information acquisition unit 802 acquires related information (S1210). Next, if the time measured by the timer 206 exceeds a preset time, the process proceeds to S1212, and if it is within the preset time, the process proceeds to S1213 (S1211).

  If the time measured by the timer 206 exceeds the preset time in S1211, the access prohibition unit 208 prohibits access to all or a part of the data in the mobile terminal 100 (S1212). Thereafter, the mobile terminal 100 finishes the process.

  In S1211, when the time measured by the timer 206 is within the preset time, the walking acceleration information acquisition unit 803 acquires walking acceleration information based on the determination result of the acquisition determination unit 205 (S1213). Next, the acceleration information measuring unit 106 measures acceleration information (S1214).

  Next, the user authentication unit 207 authenticates the user of the mobile terminal 100 according to the determination result of the detection determination unit 205 (S1216). If user authentication is performed, the process proceeds to S1216, and if not authenticated, the process proceeds to S1211.

  In S1215, when the user authentication unit 207 authenticates the user of the mobile terminal 100, the lock unit 203 unlocks the mobile terminal 100 (S1216). After S1216, the mobile terminal ends a series of processes. In this case, unlike the case where access is prohibited in S1212, the mobile terminal completes a series of processes and then performs a series of processes from the start again in the same manner as described above.

  In addition, a present Example is not limited above, A various deformation | transformation is possible. For example, as in the embodiment, in this modification, S1201 and S1202 and S1205 and S1206 are out of order, and the process may be started from the step of S1204 without determining whether or not it is an unsafe situation. . Further, the step of S1208 may be after the step of S1209 or S1210.

  Further, for example, the number of pieces of pick-up acceleration information acquired by the pick-up acceleration information acquisition unit 204 may be one. Specifically, for example, the pickup acceleration information acquisition unit 204 may acquire only one piece of pickup acceleration information (not shown) different from the pickup acceleration information shown in each drawing of FIG. In this case, the amount of information related to the picking method information stored in the storage unit is reduced.

  In this case, the pick-up determination unit 205 determines whether the mobile terminal 100 has been picked up based on the acceleration information and the similarity of only one piece of picked-up acceleration information acquired. In this case, the threshold used when the determination determination unit 205 makes the determination may be set so as to be smaller than that in the modified example. That is, it is less frequently determined that the pick-up determination unit 205 has been picked up than when the pick-up determination unit 205 makes a determination based on one piece of pick-up acceleration information, compared to a case in which the pick-up determination unit 205 makes a determination based on one piece of pick-up acceleration information. Therefore, in order to correct the difference in the frequency, the threshold value may be set smaller than that in the modified example.

  The present invention is not limited to the above-described embodiments or modifications, and various modifications can be made. The configuration and flow of the mobile terminal 100 are examples, and the present invention is not limited to this. You may replace with the structure substantially the same as the structure shown in said Example or modification, the structure which show | plays the same effect, or the structure which achieves the same objective.

  For example, the first to fourth modifications may be arbitrarily changed in combination with the embodiment. Specifically, the unsafe situation determination unit 202 includes acceleration information and fall acceleration information, information on the material of the object on which the mobile terminal 100 is placed, position information and area information, and position information, time information, and schedule information. It may be determined whether or not it is an unsafe situation based on any of these, or may be determined by combining these arbitrarily.

  Further, the timer 206 may start measuring time based on the time when it is determined that the mobile terminal 100 has been picked up, or may start measuring time based on input to the input unit 104 or the like. Good. Further, the user authentication unit 207 may perform user authentication based on the user ID, password, fingerprint authentication, or the like input to the input unit 104, or based on the walking acceleration information acquired by the walking acceleration information acquisition unit 803. User authentication may be performed. And you may implement combining the said function in each part of the unsafe condition determination part 202, the timer 206, and the user authentication part 207 arbitrarily.

  Furthermore, in the above-described embodiment, the mobile terminal 100 has all of the control unit 101, the storage unit 102, the connection unit 103, the input unit 104, the display unit 105, the acceleration information measurement unit 106, and the vibration generation unit 107. Although described, a part of each unit may be included in another mobile terminal 100, a device, or the like. Similarly, a part of each function included in the control unit 101 may be included in another mobile terminal 100, a device, or the like. As described above, when each part or part of each function extends over a plurality of mobile terminals 100 and devices, each mobile terminal and device may have a function of transmitting and receiving information to and from each other. Specifically, for example, first, the result of authentication by the mobile terminal 100 is transmitted to a device such as a server. A device such as a server determines whether or not access to data in the mobile terminal or the server is possible based on the authentication result, and transmits an instruction on whether or not access is possible to the mobile terminal 100, as in the above embodiments. The mobile terminal 100 may be configured to control whether access is permitted.

  DESCRIPTION OF SYMBOLS 100 Portable terminal, 101 Control part, 102 Storage part, 103 Connection part, 104 Input part, 105 Display part, 106 Acceleration information measurement part, 107 Vibration generation part, 201 Fall acceleration information acquisition part, 202 Unsafe condition determination part, 203 Lock unit, 204 Pickup acceleration information acquisition unit, 205 Pickup determination unit, 206 Timer, 207 User authentication unit, 208 Access prohibition unit, 501 Location information acquisition unit, 502 Area information acquisition unit, 601 Time information acquisition unit, 602 Schedule information acquisition Unit, 801 picking-up method information acquisition unit, 802 related information acquisition unit, 803 walking acceleration information acquisition unit.

Claims (15)

When the mobile terminal is picked up, time measurement is started, and according to the result of user authentication of the mobile terminal performed until the measured time passes a preset time, the mobile terminal Access permission determination means for determining whether or not access to all or part of data is possible;
A portable terminal characterized by comprising: When the mobile terminal is picked up in an unsafe situation representing a situation in which a user other than a preset user can operate the mobile terminal, the time is measured.
The mobile terminal according to claim 1. Acceleration information measuring means for measuring acceleration information related to acceleration representing movement of the mobile terminal;
Position information acquisition means for acquiring position information representing the position of the mobile terminal;
An unsafe situation determination means for determining whether or not the acceleration information and / or the position information indicates an unsafe situation representing a situation in which a user other than a preset user can operate the portable terminal;
Pickup acceleration information relating to acceleration when the mobile terminal is picked up is predetermined, picking acceleration information acquisition means for acquiring the picked up acceleration information,
Pickup determination means for determining whether or not the mobile terminal has been picked up by the acceleration information and picked up acceleration information;
User authentication means for authenticating a user of the mobile terminal;
Access prohibition for prohibiting access to all or a part of data in the portable terminal when the user authentication means does not perform the authentication within a period until the measured time elapses in advance. And further comprising means
In response to the determination result of the pickup determination means, the measurement of the time is started.
The mobile terminal according to claim 1, wherein the mobile terminal is a mobile terminal. At least a part of the whole or part of the data is encrypted,
The all or part of the data includes a decryption key for decrypting the encryption,
The access prohibiting means prohibits access to all or a part of the data by deleting the decryption key;
The mobile terminal according to claim 3. The portable terminal further includes an input unit for inputting authentication information for authenticating the preset user,
After the determination determining unit determines that the portable terminal has been acquired, the time measurement is started at the timing when the authentication information is input to the input unit.
The mobile terminal according to claim 3, wherein the mobile terminal is a mobile terminal. The mobile terminal further has a connection means for connecting to an external device different from the mobile terminal,
After determining that the mobile terminal has been picked up by the pick-up determination means, the measurement of the time is started according to the timing at which the connection is made.
The mobile terminal according to claim 3, wherein the mobile terminal is a mobile terminal. The portable terminal further includes walking acceleration information acquisition means for acquiring walking acceleration information relating to acceleration when the user walks while holding the portable terminal.
The authentication is performed based on the walking acceleration information and the acceleration information.
The portable terminal according to claim 3 , wherein the portable terminal is a portable terminal. The portable terminal further includes walking state determination means for determining whether the user is walking with the portable terminal based on the walking acceleration information and the acceleration information,
When the walking state determination means determines that the user is walking with the portable terminal, the authentication is performed based on the walking acceleration information and the acceleration information.
The mobile terminal according to claim 7. The picked-up acceleration information includes first and second picked-up acceleration information,
The pick-up determination means determines whether the portable terminal has been picked up based on the first and second pick-up acceleration information and the acceleration information,
The walking acceleration information includes first and second walking acceleration information,
The authentication is performed based on the first or second walking acceleration information and the acceleration information.
The mobile terminal according to claim 8. Depending on the determination result of the acquisition determination means, the authentication is performed by one of the first or second walking acceleration information and the acceleration information.
The mobile terminal according to claim 9. The mobile terminal further includes area information acquisition means for acquiring preset area information including a plurality of position information of the mobile terminal;
Time information acquisition means for acquiring time information according to the time at which the position information acquisition means acquires the position information;
Schedule information acquisition means for acquiring schedule information including the area information and time information associated with each position information included in the area information;
Have
The unsafe situation determining means determines whether or not the unsafe situation is based on the position information, the time information, and the schedule information.
The mobile terminal according to claim 10.   When the user of the mobile terminal is authenticated before the preset time elapses, the access permission determination means determines permission to access all or a part of the data of the mobile terminal. The mobile terminal according to claim 1.   If the user of the mobile terminal is not authenticated by the time set in advance, the access permission determination unit determines to deny access to all or a part of the data of the mobile terminal. The mobile terminal according to claim 1, wherein: When the portable terminal is picked up, time measurement is started, and the user of the portable terminal is not authenticated within the period until the measured time passes a preset time. Prohibit access to all or part of the device's data,
A program that allows a computer to function. A mobile terminal and a server,
The portable terminal starts measuring time when the portable terminal is picked up, and displays the result of the user authentication of the portable terminal that is performed until the measured time passes a preset time. To the server,
The server determines whether or not to access all or part of the data of the mobile terminal according to the authentication result, and transmits the determination result to the mobile terminal,
Depending on the result of the determination that the mobile terminal acquires from the server, access to all or part of the data of the mobile terminal is permitted or denied,
A communication system characterized by the above.

Images