JP5238004B2 - Mobile information terminal loss countermeasure system - Google Patents

Description

  Embodiments of the present invention relate to a mobile information terminal loss countermeasure system capable of taking measures when a mobile information terminal is lost.

  A portable information terminal typified by a smartphone can store various data together with an advanced communication function. When confidential information such as customer information is stored, if this portable information terminal is lost or stolen, it is necessary to quickly collect it or erase the confidential data.

  In this regard, a system has been proposed in which data is deleted remotely or the location of a portable information terminal is tracked by GPS.

JP 2006-303817 A JP 2008-109306 A

  However, the location of the lost portable information terminal may not be easily grasped even if the above-described technique is applied.

In order to solve the above-described problem, an embodiment of the present invention has a management terminal that transmits a reply instruction for returning position information, a search terminal that is a portable mobile information terminal, and a GPS. A lost terminal that transmits location information to the management terminal and the search terminal when receiving a reply instruction from the terminal, and the search terminal sends an instruction to the lost terminal by voice when the location information is received If the lost terminal does not have enough remaining battery power to perform the initial action when the initial action instruction is received from the management terminal, the data in the terminal is completely erased .
The lost terminal periodically sends location information to the management terminal after starting the initial action, and if the management terminal does not receive the location information within a predetermined time, the instruction to completely erase the lost terminal data A system for preventing loss of a portable information terminal that transmits to a lost terminal is provided.

It is a figure showing the structure of the countermeasure system at the time of a portable information terminal loss. It is a figure which shows the structure of a management terminal. It is a figure which shows the structure of the lost terminal and search terminal which are portable information terminals. It is a flowchart which shows operation | movement of the countermeasure system at the time of a portable information terminal loss. It is a flowchart which shows operation | movement of the countermeasure system at the time of a portable information terminal loss. It is a figure which shows the example of an operating battery remaining amount table. It is a figure which shows the example of a setting file. It is a figure which shows the example of an action recording file. It is a figure which shows the example of a location recording file.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a portable information terminal loss countermeasure system according to the present invention will be described in detail with reference to the drawings.

  The mobile information terminal loss countermeasure system includes a management terminal that transmits an initial action countermeasure instruction that is an instruction for executing an initial action including a battery consumption suppression operation that suppresses battery consumption, a search terminal that is a movable portable information terminal, A lost terminal that has a GPS and performs an initial countermeasure when receiving an initial countermeasure instruction from the management terminal, and periodically transmits position information to the management terminal and the search terminal.

  FIG. 1 is a diagram illustrating a configuration of a loss countermeasure system for a portable information terminal according to the present embodiment. As shown in FIG. 1, the lost portable information terminal countermeasure system includes a lost terminal 105 which is a lost portable information terminal, and a management capable of sending and receiving e-mails to the lost terminal 105 via a public communication line network 102 such as the Internet. A terminal 101 and a search terminal 104 that moves and searches the lost terminal 105.

  The management terminal 101 is connected to a mobile phone communication device 103 of a mobile phone communication company via a public communication line network 102. The management terminal 101 can use a so-called personal computer or a server.

  The lost terminal 105 can send and receive e-mails with the management terminal 101 via the mobile phone communication device 103.

  Search terminal 104 is preferably a portable information terminal. The search terminal 104 may be a so-called personal computer.

  FIG. 2 is a diagram illustrating the configuration of the management terminal 101. As shown in FIG. 2, the management terminal 101 includes a CPU 201 that is an arithmetic device, a ROM and RAM 202 that are storage devices, an input / output device 203 such as a keyboard, a display, and a mouse, and a hard disk drive 204 that is a mass storage device. And a communication interface 205 for connecting to the public communication network 102.

  FIG. 3 is a diagram showing the configuration of the lost terminal 105 and the search terminal 104 which are portable information terminals. As shown in FIG. 3, the lost terminal 105 and the search terminal 104 include a CPU 301 that is an arithmetic device, a ROM and a RAM 302, an input / output device 303 such as a keyboard or touch panel, a display, a microphone, and a speaker, and a storage device 304. , A communication interface 305 for performing communication, a GPS 306 for acquiring position information, and a battery 307 for supplying power.

  4 and 5 are flowcharts showing the operation of the mobile information terminal loss countermeasure system. The operation of the portable information terminal loss countermeasure system includes an initial action countermeasure and a search operation. The initial action includes a battery exhaustion suppression action that suppresses battery consumption and an initial action that manages data remaining on the lost terminal. FIG. 4 shows the initial action, and FIG. 5 shows the search operation.

  As shown in FIG. 4, when the loss of the portable information terminal is detected, in step 401, the management terminal 101 transmits an initial response mail instructing the lost terminal 105 to start the initial response. Here, the lost terminal 105 is locked so that no operation on any terminal can be performed.

  In step 402, the lost terminal 105 receives the initial response mail. When the lost terminal 105 receives the initial response mail, the lost terminal 105 performs a battery consumption suppression countermeasure operation. That is, the lost terminal 105 stops unnecessary resident applications in step 403, stops communication except when necessary in step 404, and turns off the display backlight in step 405.

  Further, the lost terminal 105 measures the remaining battery level in step 406. The lost terminal 105 determines whether or not the remaining battery level is sufficient for starting the initial operation. If it is sufficient, the process goes to Step 408. If the remaining battery level is not enough, that is, the remaining battery level is necessary for transmitting location information or performing voice alert When the threshold value of the remaining battery level is below the threshold value, the process proceeds to step 512 in FIG.

  In step 408, the lost terminal 105 transmits an initial action start mail notifying the management terminal 101 of the start of the initial action.

  In step 409, the management terminal 101 receives the initial action start mail.

  In step 410, the lost terminal 105 creates a primary asset list that is a list of data remaining in the lost terminal 105 and stores it in the storage device 304.

  In step 411, the lost terminal 105 reads an erase data list, which is a list of data to be erased, from the storage device 304. In step 412, the lost terminal 105 selectively erases data designated in advance, that is, erases data listed in the erased data list.

  In step 413, the lost terminal 105 creates a secondary asset list that is a list of data left in the lost terminal 105 after the erasing operation, and stores it in the storage device 304.

  In step 414, the lost terminal 105 changes the standby screen. In other words, the lost terminal 105 changes the standby screen to a screen that displays a request for notification of loss, such as “If you have acquired this terminal, please contact the following contact number. .

  In step 415, the lost terminal 105 changes to the tracking mode in which the search operation is executed. In step 416, the lost terminal 105 transmits a tracking start mail to the management terminal 101. At this time, the lost terminal 105 reads the primary asset list and the secondary asset list from the storage device 304, attaches them to the tracking start mail and transmits them, and proceeds to step 501 in FIG.

  In step 417, the management terminal 101 determines whether the tracking start mail is received within a predetermined time, for example, within 5 minutes. The management terminal 101 proceeds to step 503 in FIG. 5 if the tracking start mail is received within a predetermined time, and proceeds to step 504 in FIG. 5 if not received.

  As shown in FIG. 5, in step 501, the lost terminal 105 acquires the position information of the lost terminal 105 by the GPS 306 every predetermined time, for example, every 10 minutes, and stores it in the storage device 304.

  In step 502, the lost terminal 105 reads the position information from the storage device 304, attaches it to the position information mail that is a mail notifying the position information, and transmits it to the management terminal 101 and the search terminal 104.

  In step 503, the management terminal 101 determines whether the location information mail is received within a predetermined time, for example, within 20 minutes. The management terminal 101 proceeds to step 504 if the position information mail is not received within the predetermined time, and returns to step 503 if it is received.

  In step 504, the management terminal 101 deletes all data and transmits a complete deletion mail, which is an instruction to restore the initial state, to the lost terminal 105.

  In step 505, the search terminal 104 receives the location information mail from the lost terminal 105. Here, the searcher possessing the search terminal 104 moves toward the position of the lost terminal 105 using the position information as a clue.

  In step 506, the search terminal 104 acquires the position information of the search terminal 104 using the GPS 306 every predetermined time, for example, every 10 minutes.

  In step 507, the search terminal 104 compares the acquired position information of the search terminal with the position information of the lost terminal 105 described in the position information mail, and the positions of the search terminal 104 and the lost terminal 105 are a predetermined distance, for example, It is determined whether it is within 10 m. The search terminal 104 proceeds to step 508 when the distance from the lost terminal 105 is within the predetermined distance, and returns to step 505 when not within the predetermined distance.

  The location information mail may have a map display means for visually confirming the location of the lost terminal 105 on the map. For example, an address of a site displaying Internet map information can be added to the position information mail. In this case, the searcher can visually confirm the position of the lost terminal 105 on the map by opening this address.

  In step 508, the search terminal 104 transmits a notification mail, which is an instruction for causing the lost terminal 105 to generate sound, to the lost terminal 105.

  In step 509, the lost terminal 105 determines whether or not a notification mail has been received. The lost terminal 105 issues a sound in step 510 when it receives a notification mail, and proceeds to step 511 when it does not receive a notification mail.

  In step 511, it is determined whether the lost terminal 105 has received the complete deletion mail. The lost terminal 105 returns to step 502 when it does not receive the complete deletion mail, and completely deletes the data at step 512 when it is received.

  FIG. 6 is a diagram showing an example of the operating battery remaining amount table used in step 407 of FIG. As shown in FIG. 6, the operation battery remaining amount table stores the operation performed by the lost terminal 105 and the remaining amount of battery necessary for this operation.

  For example, the remaining amount of battery required for the operation of “stop unnecessary resident application” is “20%”.

  The operating battery remaining amount table is stored in the storage device 304. In step 407, the lost terminal 105 has a sufficient amount of remaining battery power to perform some operations, but is insufficient to perform other operations. The operation to be performed can be selectively omitted.

  For example, when the remaining battery level is 25%, the lost terminal 105 does not perform asset inventory creation, data erasure, standby screen change, location information acquisition, and voice alerts that require 30% battery level. It is possible to stop only a resident application, stop communication, or completely erase data.

  FIG. 7 is a diagram illustrating an example of a setting file stored in the storage device 304 by the lost terminal 105. As shown in FIG. 7, the setting file includes, for example, “mail setting”, “battery remaining amount and countermeasure time limit setting”, “battery consumption suppression countermeasure setting”, “lost countermeasure countermeasure setting”, and “GPS tracking setting”. Stores "setting".

  “Mail setting” includes “Reception setting” including information for identifying the sender of the received mail, “Mail reply setting” including the mail address of the reply destination, “Mail reception data record” which is a mail reception record, “Mail reply data record” which is a reply record of mail.

  “Setting of remaining battery level and countermeasure time limit” includes a standby time for each remaining battery level and a possible countermeasure time.

  “Setting of battery consumption suppression measure” includes the name of the process to be stopped and the time zone for stopping communication.

  “Setting for countermeasure against loss” includes “grouping of countermeasures” in which work items are grouped.

  “GPS tracking setting” stores a “recording condition” that is a threshold of a moving distance for acquiring position information and a “positioning file path” that is a position of a file that stores the position information.

  FIG. 8 is a diagram illustrating an example of an operation record file attached to the location information mail by the lost terminal 105. As shown in FIG. 8, the operation record file stores “mail record” and “execution record”.

  The “mail record” includes a “received mail data record” that is a record of received mail, a reply mail record, and a “reply mail data record” that is information of an attached file. The “execution record” includes the execution date and time, and the type of operation executed.

  The lost terminal 105 activates the corresponding application in accordance with the “reception command” indicated in the subject of the mail, and sends back the activation date and time of activation.

  FIG. 9 is a diagram showing an example of a location record file attached to the location information mail by the lost terminal 105. As shown in FIG. 9, the location record file “RT.kml” stores the location records over time.

  Each location record includes the number of times of recording, terminal ID, date and time, remaining battery capacity, remaining time, latitude, longitude, moving distance, and countermeasure execution number. Here, the remaining time represents a time that can be taken when a loss occurs.

  As described above, the mobile information terminal loss countermeasure system according to the present embodiment includes the management terminal 101 that transmits an initial action countermeasure instruction that includes a battery consumption suppression operation, and a complete deletion instruction that completely erases data, and the management terminal 101. When the initial response countermeasure instruction is received, the initial countermeasure is performed, and when the complete deletion instruction is received, the lost terminal 105 that completely erases the data and the lost terminal 105 that is issued within a predetermined distance of the lost terminal 105 are issued. And a search terminal 104 that issues a report instruction.

  Therefore, the portable information terminal loss countermeasure system has an effect that the location of the lost terminal 105 can be easily grasped.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

101: Management terminal 102: Public communication network
104: search terminal,
104: Lost terminal.

Claims (2)

A management terminal that sends a reply instruction to send back location information;
A search terminal which is a portable personal digital assistant,
A lost terminal that has a GPS and transmits the location information to the management terminal and the search terminal when the reply instruction is received from the management terminal;
The search terminal
When receiving the location information, instruct the lost terminal to be issued by voice,
The lost terminal
Wherein when receiving the management terminal or et initial countermeasure instruction is an execution instruction of the first dynamic measures, wherein if there is not enough battery remaining amount for performing initial measures, data completely erased in the terminal,
The lost terminal
Periodically sending the location information to the management terminal after starting the initial action,
The management terminal
If the location information is not received within a predetermined time, an instruction to completely delete the data of the lost terminal is transmitted to the lost terminal . The search terminal
Further equipped with GPS,
The portable information terminal loss countermeasure system according to claim 1, wherein when the distance between the search terminal and the lost terminal becomes equal to or less than a threshold value, the lost terminal is instructed to be notified by voice.

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