JP2015173372A - mobile terminal, control method, and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the discovery ratio of a lost mobile terminal.SOLUTION: The mobile terminal, which has a positional information acquisition function for acquiring positional information of the mobile terminal comprises: a losing determination unit which determines whether the mobile terminal has been lost or not; and a controller which turns on the positional information acquisition function when it is determined that the mobile terminal has been lost.

Description

  The present invention relates to a mobile terminal having a location information acquisition function for acquiring location information of a mobile terminal, a control method, and a control program.

  In the case of a mobile terminal, in particular, a smartphone, a large amount of power is consumed for screen display or the like, so that the operation time (operation time) by one charge is generally short. Therefore, in order to extend the operation time as much as possible, measures such as frequently turning off unused functions are taken.

  On the other hand, in recent years, mobile terminals equipped with a position information acquisition function, such as a GPS (Global Positioning System) function, have become widespread. In such a mobile terminal, if the GPS function is always turned on, the amount of electric power consumed increases. Therefore, many users set the GPS function off except when using a navigation application or the like.

  However, if the mobile terminal is lost with the GPS function turned off, searching using the GPS function is not possible. Therefore, for example, a technique for turning on the GPS function by remote operation from an external device via a network is known. However, if the mobile terminal is lost in a place where network communication is not possible, such as outside the communication range, the GPS function cannot be turned on by remote operation. That is, with the general method described above, the possibility (discovery rate) of finding a lost mobile terminal is extremely low.

  Therefore, in Patent Document 1, if the non-operation time is equal to or greater than a predetermined threshold, information that can be used to analogize the position of the mobile terminal is registered in advance by e-mail, assuming that the mobile terminal may have been left behind. A portable terminal that transmits to a destination is described.

  Further, in Patent Document 2, when ID (identification) information transmitted from a key terminal via short-range radio is not received, the location information of the mobile terminal is acquired periodically (for example, every hour). A mobile terminal that transmits to a location registration device is described.

  Patent Document 3 describes a mobile terminal that automatically creates a theft mail notifying that a theft has been made and transmits it to a service center when an authentication mismatch is detected.

JP 2009-124188 A (Page No. 8) Japanese Patent Laying-Open No. 2005-333626 (Page No. 5) JP 2003-199155 A (Page No. 6-7)

"Sequential refining method of moving route using GPS mobile phone for outdoor action support" (Journal 2011, IPSJ Journal Vol.52 No.6 1951-1967)

  In any case of Patent Documents 1-3, after the predetermined condition is satisfied (the predetermined time of the non-operation time has been reached, the ID information from the key terminal is interrupted, the authentication mismatch is detected), the mobile terminal Alternatively, position analogy information) is transmitted to a predetermined transmission destination. Therefore, the method described in Patent Documents 1-3 has a higher discovery rate of lost mobile terminals than the above general method.

  Here, in general, the search for a lost mobile terminal is not completed in a short period (several minutes), and often requires a certain period (several hours to several tens of hours). Simply put, the discovery rate depends on the length of operation time of the mobile terminal after loss.

  However, in any case of Patent Documents 1-3, there is a high possibility that the position information acquisition function is always on. When the position information acquisition function is on, a predetermined amount of processing is executed even during a period in which position information is not acquired, and power corresponding to the processing amount is consumed. That is, when the position information acquisition function is always on, the operation time of the mobile terminal is shortened as a whole. The fact that the overall operation time is shortened means that the operation time after the loss, that is, the search period is shortened. Therefore, in the case of the techniques of Patent Documents 1-3, the discovery rate of mobile terminals is not sufficiently high.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a mobile terminal, a control method, and a control program capable of improving the discovery rate of a lost mobile terminal.

  A mobile terminal of the present invention is a mobile terminal having a location information acquisition function for acquiring location information of a mobile terminal, wherein a loss determination unit that determines whether or not the mobile terminal is in a lost state, and the mobile terminal And a control unit that turns on the position information acquisition function when it is determined to be in a lost state.

  The control method of the present invention is a mobile terminal control method having a location information acquisition function for acquiring location information of a mobile terminal, and determines whether or not the mobile terminal is in a lost state, and the mobile terminal is lost If it is determined that the position information is in the state, the position information acquisition function is turned on.

  The control program of the present invention includes a process for determining whether or not the mobile terminal is in a lost state in a computer of the mobile terminal having a location information acquisition function for acquiring the location information of the mobile terminal, and the mobile terminal is in a lost state. If it is determined that the position information acquisition function is turned on, the program for executing the process of turning on the position information acquisition function is executed.

  According to the present invention, it is possible to improve the discovery rate of a lost mobile terminal.

It is a block diagram which shows the structural example of the mobile terminal which concerns on the 1st Embodiment of this invention. 3 is a flowchart showing an operation example of the mobile terminal shown in FIG. 1. It is a timing chart figure for explaining acquisition processing and transmission processing of position information in a mobile terminal after a GPS function is turned on. It is a block diagram which shows the structural example of the mobile terminal which concerns on the 2nd Embodiment of this invention. It is a block diagram of the control program shown by FIG.

[First Embodiment]
(Description of configuration)
FIG. 1 is a block diagram showing a configuration example of a mobile terminal 10 according to the first embodiment of the present invention.

  The mobile terminal 10 includes a GPS function 12 (position information acquisition function), a loss determination unit 14, and a control unit 16. The GPS function 12 acquires position information of the mobile terminal 10 based on a signal from a GPS satellite. The loss determination unit 14 determines whether or not the mobile terminal 10 is in a lost state. When it is determined that the mobile terminal 10 is in a lost state, the control unit 16 turns on the GPS function 12.

Note that the mobile terminal 10 and the mobile terminal 100 in the second embodiment described below are, for example, a smartphone, a mobile phone, an in-vehicle device, a digital camera, or the like. Of course, the mobile terminal 10 and the mobile terminal 100 are not limited to the above, and can be widely applied to all mobile terminals.
(Description of operation)
FIG. 2 is a flowchart showing an operation example of the mobile terminal 10.

  The loss determination unit 14 determines whether or not the first loss condition is satisfied (step S1). Here, the first loss condition is a condition that defines “theft” of the mobile terminal 10. Specifically, the first loss condition is a condition that the number of personal authentication failures (for example, the number of erroneous input of a password, the number of rejection of biometric authentication, etc.) reaches a predetermined number.

  When it is determined that the first loss condition is satisfied (Yes in Step S1), the control unit 16 turns on the GPS function 12 (Step S2).

  When it is determined that the first loss condition is not satisfied (No in step S1), the loss determination unit 14 determines whether the second loss condition is satisfied (step S3). Here, the second loss condition is a condition that prescribes “forgetting” the mobile terminal 10. Specifically, the second loss condition is a condition that an operation on the mobile terminal 10 is not performed for a predetermined period.

  When it is determined that the second loss condition is satisfied (Yes in Step S3), the control unit 16 turns on the GPS function 12 (Step S2).

When it is determined that the second condition is not satisfied (No in step S3), the process of step S1 is executed again.
(Explanation of effect)
As described above, in general, the discovery rate of the mobile terminal 10 depends on the length of operation time of the mobile terminal 10 after being lost. Further, when the location information acquisition function 12 is off, less power is consumed in the mobile terminal 10 than when the location information acquisition function 12 is on.

In the case of this embodiment, the location information acquisition function 12 is turned on for the first time when it is determined that the location information is in a lost state. The overall operation time can be increased. By increasing the overall operation time, the operation time after loss, that is, the search period is also increased. Therefore, according to the present embodiment, the discovery rate of the lost mobile terminal 10 can be improved.
(Description of modification)
In the first embodiment described above, the function of acquiring the location information of the mobile terminal 10 is not limited to the GPS function 12. For example, the location information of the mobile terminal 10 may be acquired based on the radio field strength of a wireless base station (for example, a mobile phone base station or a wireless LAN (Local Area Network) access point).

  In addition, the predetermined number of times in the first loss condition (upper limit number of personal authentication failures) can be, for example, five times, and the predetermined period in the second loss condition (period in which it is determined to be misplaced) is, for example, 24 hours It can be.

  Note that the above setting examples are merely examples, and arbitrary values can be set for the predetermined number of times and the predetermined period. Further, the predetermined number of times and the predetermined period may be fixed values, or may be variable values that are automatically or sequentially changed by a user operation.

  Hereinafter, processing after the GPS function 12 is turned on in the first embodiment will be described.

  For example, after the GPS function 12 is turned on, the control unit 16 sends a notification indicating that the position of the mobile terminal 10 can be searched to a predetermined transmission destination (for example, a service center or the home of the owner of the mobile terminal 10). May be sent to the computer. The transmission destination that has received the notification transmits a command requesting the mobile terminal 10 to transmit position information. The mobile terminal 10 transmits the position information of the mobile terminal 10 to the transmission destination every time the command is received or repeatedly at a predetermined cycle after receiving the command.

  Alternatively, after the GPS function 12 is turned on, the control unit 16 voluntarily acquires the position information from the GPS function unit 12 and transmits the acquired position information to the transmission destination even if there is no request from the transmission destination. It can also be done.

  In that case, acquisition and transmission of position information may be repeatedly performed.

  Further, when the acquisition and transmission of position information are repeatedly executed, the acquisition of position information is repeatedly executed at a predetermined first interval, and the transmission of position information is repeatedly executed at a predetermined second interval longer than the first interval. You may do it. By making the transmission interval longer than the acquisition interval, the power consumed by the mobile terminal 10 after the loss determination can be reduced, so that the discovery rate can be further improved.

  For example, the first interval can be 5 minutes and the second interval can be 1 hour. Non-Patent Document 1 reports that the mobile terminal 10 can be operated continuously for 2 to 3 days by setting the first interval to 5 minutes. Thereby, since the search period of the mobile terminal 10 can be at least 2 to 3 days, the discovery rate of the mobile terminal 10 can be further improved.

  The above-described setting examples for the first interval and the second interval are merely examples, and arbitrary values can be set for the first interval and the second interval. Each set value of the first interval and the second interval may be a fixed value, or may be a variable value that is sequentially or automatically changed by a user operation.

  FIG. 3 is a timing chart for explaining position information acquisition processing and transmission processing in the mobile terminal after the GPS function is turned on.

  In the case where the transmission interval is longer than the acquisition interval, the transmission of the position information is performed in such a way that all of the plurality of pieces of position information P1 to Pn acquired at the first interval within the second interval is “history list L”. As a batch transmission process.

When the transmission interval is longer than the acquisition interval, the transmission of the position information is performed by “average value Av” of the plurality of pieces of position information P1 to Pn acquired at the first interval within the second interval every second interval. May be processed.
[Second Embodiment]
FIG. 4 is a block diagram illustrating a configuration example of the mobile terminal 100 according to the second embodiment of the present invention. The mobile terminal 100 includes a CPU (Central Processing Unit) 102 and a memory 104. Although not shown in FIG. 4, the mobile terminal 100 has a location information acquisition function for acquiring location information of the mobile terminal 100.

  The CPU 102 executes the control program 200 stored in the memory 104. Examples of the memory 104 include non-temporary storage means such as a ROM (Read Only Memory), a hard disk, a removable medium, or a removable disk.

  FIG. 5 is a configuration diagram of the control program 200. The control program 200 includes a first program 202 and a second program 204.

  The first program 202 is a program for causing the CPU 102 to execute processing for determining whether or not the mobile terminal 100 is in a lost state.

  The second process 204 is a program for causing the CPU 102 to execute a process of turning on the position information acquisition function when it is determined that the mobile terminal 100 is in a lost state.

  According to the second embodiment described above, the discovery rate of the lost mobile terminal 100 can be improved as in the first embodiment.

Moreover, a part or all of the above-described embodiment can be described as in the following supplementary notes.
(Appendix 1)
A mobile terminal having a location information acquisition function for acquiring location information of a mobile terminal,
A loss determination unit that determines whether or not the mobile terminal is in a lost state;
And a control unit that turns on the location information acquisition function when it is determined that the mobile terminal is in a lost state.
(Appendix 2)
The mobile terminal according to appendix 1, wherein after the position information acquisition function is turned on, the control unit transmits to the predetermined transmission destination that the position of the mobile terminal can be searched.
(Appendix 3)
The mobile terminal according to appendix 1 or 2, wherein after the position information acquisition function is turned on, the control unit transmits the position information acquired from the position information acquisition function to a predetermined transmission destination.
(Appendix 4)
The mobile terminal according to supplementary note 3, wherein the acquisition and transmission of the location information are repeatedly executed.
(Appendix 5)
The acquisition of the position information is repeatedly executed at a predetermined first interval, and the transmission of the position information is repeatedly executed at a predetermined second interval longer than the first interval. Mobile terminal.
(Appendix 6)
The transmission of the position information is a process in which, for each second interval, all of the plurality of pieces of position information acquired at the first interval within the second interval are transmitted as a history list. The mobile terminal according to Appendix 5.
(Appendix 7)
The transmission of the position information is a process of transmitting an average value of a plurality of the position information acquired at the first interval within the second interval every second interval. The described mobile terminal.
(Appendix 8)
The mobile terminal according to any one of supplementary notes 5-7, wherein the first interval is 5 minutes.
(Appendix 9)
The mobile terminal according to any one of supplementary notes 5-8, wherein the second interval is one hour.
(Appendix 10)
The mobile terminal according to any one of supplementary notes 5-9, wherein a user can arbitrarily set at least one of the first interval and the second interval.
(Appendix 11)
The loss determination unit includes a first loss condition for determining whether or not the cause of loss is theft of the mobile terminal, and a first for determining whether or not the cause of loss is misplacement of the mobile terminal. 2. The mobile terminal according to claim 1, wherein the mobile terminal is determined to be in the lost state when at least one of the two lost conditions is satisfied.
(Appendix 12)
The mobile terminal according to appendix 11, wherein the first condition is a condition that the number of failed personal authentications reaches a predetermined number.
(Appendix 13)
The mobile terminal according to appendix 12, wherein the predetermined number of times is five.
(Appendix 14)
13. The mobile terminal according to appendix 12, wherein the predetermined number of times can be arbitrarily set by a user.
(Appendix 15)
15. The mobile terminal according to any one of appendices 12-14, wherein the personal authentication is password authentication or biometric authentication.
(Appendix 16)
The mobile terminal according to any one of appendices 11-15, wherein the second condition is a condition in which an operation on the mobile terminal is not performed for a predetermined period.
(Appendix 17)
The mobile terminal according to supplementary note 16, wherein the predetermined period is 24 hours.
(Appendix 18)
The mobile terminal according to supplementary note 16, wherein the predetermined period can be arbitrarily set by a user.
(Appendix 19)
19. The mobile terminal according to any one of appendices 1-18, wherein the position information acquisition function acquires the position information based on a signal from a GPS satellite.
(Appendix 20)
19. The mobile terminal according to any one of appendices 1-18, wherein the position information acquisition function acquires the position information based on radio field strength of a radio base station.
(Appendix 21)
A method for controlling a mobile terminal having a location information acquisition function for acquiring location information of the mobile terminal,
Determine whether the mobile terminal is in a lost state,
If it is determined that the mobile terminal is in a lost state, the location information acquisition function is turned on.
(Appendix 22)
In a mobile terminal computer having a location information acquisition function for acquiring location information of the mobile terminal,
Processing to determine whether the mobile terminal is in a lost state;
A control program for executing a process of turning on the position information acquisition function when it is determined that the mobile terminal is in a lost state.

DESCRIPTION OF SYMBOLS 10 Mobile terminal 12 GPS function 14 Loss determination part 16 Control part 100 Mobile terminal 102 Memory 104 CPU
200 Control program 202 First program 204 Second program P1 to Pn Position information L History list Av Average value

Claims (10)

A mobile terminal having a location information acquisition function for acquiring location information of a mobile terminal,
A loss determination unit that determines whether or not the mobile terminal is in a lost state;
And a control unit that turns on the location information acquisition function when it is determined that the mobile terminal is in a lost state.   The mobile terminal according to claim 1, wherein after the position information acquisition function is turned on, the control unit transmits the position information acquired from the position information acquisition function to a predetermined transmission destination.   The acquisition of the position information is repeatedly executed at a predetermined first interval, and the transmission of the position information is repeatedly executed at a predetermined second interval longer than the first interval. Mobile terminal.   The mobile terminal according to claim 3, wherein the first interval is 5 minutes.   The mobile terminal according to claim 3 or 4, wherein a user can arbitrarily set at least one of the first interval and the second interval.   The loss determination unit includes a first loss condition for determining whether or not the cause of loss is theft of the mobile terminal, and a first for determining whether or not the cause of loss is misplacement of the mobile terminal. The mobile terminal according to claim 1, wherein the mobile terminal is determined to be in the lost state when at least one of the two lost conditions is satisfied.   The mobile terminal according to claim 6, wherein the first condition is a condition that the number of failed personal authentications reaches a predetermined number.   The mobile terminal according to claim 6 or 7, wherein the second condition is a condition in which an operation on the mobile terminal is not performed for a predetermined period. A method for controlling a mobile terminal having a location information acquisition function for acquiring location information of the mobile terminal,
Determine whether the mobile terminal is in a lost state,
If it is determined that the mobile terminal is in a lost state, the location information acquisition function is turned on. In a mobile terminal computer having a location information acquisition function for acquiring location information of the mobile terminal,
Processing to determine whether the mobile terminal is in a lost state;
A control program for executing a process of turning on the position information acquisition function when it is determined that the mobile terminal is in a lost state.

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