KR101473661B1 - Method and apparatus for managing data of mobile device - Google Patents

Abstract

The data management apparatus of a mobile device of the present invention includes a time monitoring block for recording whether or not a lost command message is received from the MDM server and for monitoring whether or not a predetermined delete start time is reached after counting an elapsed time, A battery management block for checking the remaining capacity of the battery of the mobile device when the reception time is recorded and for checking whether the remaining capacity is less than or equal to a predetermined minimum capacity; A terminal management execution block for requesting the MDM server to confirm the start of data deletion when the elapsed time counted by the MDM server or the elapsed time counted is the preset deletion start time, And a data management block for deleting data stored in the mobile device.

Description

TECHNICAL FIELD [0001] The present invention relates to a data management method for a mobile device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for managing data stored in a mobile device, and more particularly, to a technique for managing data stored in a mobile device when a mobile device (a mobile terminal or a mobile terminal) is lost. And more particularly, to a data management method and apparatus for managing data stored in a mobile device.

In recent years, mobile devices (e.g., mobile phones, smart phones, smart pads, and the like) have become a necessity of life. Such mobile devices are becoming increasingly large in storage capacity as semiconductor technology advances.

Accordingly, users of the mobile device store personal information such as phone numbers of family members, acquaintances, private schedules, memos, personal information (e.g., pictures, music, videos, etc.) in a mobile device, It is called from the storage space and is used conveniently.

On the other hand, there is always a concern that the mobile device is lost due to the characteristics of usage that the individual has to carry with him or herself. Thus, when the user loses the mobile device, private information stored in the device is leaked and used maliciously Etc.).

A data deletion method using an MDM server has been used as a method for preventing leakage of private information due to the loss of a mobile device. In this method (data management method for mobile devices), a user (owner) When the MDM server reports the loss to the MDM server side, the MDM server explicitly issues (instructs) a data deletion command via a management tool (for example, an MDM agent application or the like) mounted on the mobile device, Accordingly, the data stored in the storage space is deleted.

Korean Patent Publication No. 10-2007-0000748, published on Jan. 3, 2007. Korean Patent Publication No. 10-2006-0127493, published on December 13, 2006.

However, the conventional data management method of the mobile device has a problem that the owner can not easily determine whether or not to delete the device data if the owner can not clearly confirm whether the mobile device is theft or simple loss And the owner can not judge (confirm) whether or not the data of the terminal is definitely deleted.

According to one aspect of the present invention, there is provided a method for managing a mobile terminal, comprising the steps of: recording a command reception time when a loss command message is received from an MDM server and counting an elapsed time thereof; And initiating deletion of data stored in the device.

The starting process of the present invention can be executed when the MDM server requests confirmation of the start of data deletion and receives an approval message from the MDM server according to the confirmation request.

The method of the present invention may further comprise the step of, when the deletion of the data starts, generating a message indicating the start of deletion and transmitting the generated message to the online communication means set by the user of the mobile device.

The method of the present invention may further include generating a message informing completion of deletion of the data when the deletion of the data is completed, and transmitting the generated message to a predetermined online communication means by a user of the mobile device.

The preset deletion start time of the present invention may be received in the lost command message, and the predetermined deletion start time may be set by the user of the mobile device.

According to another aspect of the present invention, there is provided a method for controlling a mobile device, comprising the steps of: recording a command reception time when a loss command message is received from an MDM server; checking whether a remaining capacity of the mobile device is less than a predetermined minimum capacity Counting an elapsed time when the remaining capacity is less than or equal to the predetermined minimum capacity, or when the elapsed time counted is equal to or less than the predetermined minimum capacity, The method comprising the steps of: requesting the MDM server to confirm deletion of data; and initiating deletion of data stored in the mobile device when an approval message for the confirmation request is received from the MDM server .

The method may further include the steps of: monitoring a current remaining capacity of the battery while counting the elapsed time; monitoring the remaining capacity of the battery when the current remaining capacity is less than the predetermined minimum capacity; The method may further include a step of starting the forced deletion of the data regardless of whether the data is forcible deletion.

The method of the present invention may further comprise the steps of: monitoring a power state of the mobile device during counting of the elapsed time; and, when power is turned off, The method may further include a step of starting forced deletion of the data.

The method of the present invention may further comprise the step of, when the deletion of the data starts, generating a message indicating the start of deletion and transmitting the generated message to the online communication means set by the user of the mobile device.

The method of the present invention may further include generating a message informing completion of deletion of the data when the deletion of the data is completed, and transmitting the generated message to a predetermined online communication means by a user of the mobile device.

The method may further include switching the mobile device to a command standby state when a loss cancellation message is received from the MDM server in response to the confirmation request.

According to another aspect of the present invention, there is provided a time monitoring block for recording whether or not a lost command message is received from an MDM server, recording a command receiving time, counting an elapsed time, A battery management block for checking the remaining capacity of the battery of the mobile device when the reception time is recorded and for checking whether the remaining capacity is less than or equal to a predetermined minimum capacity; A terminal management execution block for requesting the MDM server to confirm deletion of data when the counted elapsed time reaches a predetermined deletion start time; and a terminal management execution block for, when receiving an acknowledgment message for the confirmation request from the MDM server, A day of a mobile device including a data management block for deleting data stored in the mobile device It provides a management apparatus.

The battery management block of the present invention monitors the current remaining capacity of the battery while counting the elapsed time, and when the current remaining capacity becomes less than the preset minimum capacity, , The data management block can be instructed to forcibly delete the data.

The apparatus of the present invention monitors the power state of the mobile device during the counting of the elapsed time and when it is detected that the power is turned on after the power is turned off, And a power state detection block for instructing the data management block to perform the forced deletion.

The apparatus of the present invention may further include a data monitoring block for generating a message indicating the start of deletion of the data and transmitting the message to the online communication means set by a user of the mobile device.

The data monitoring block of the present invention may generate a message informing completion of deletion of the data when the deletion of the data is completed and transmit the message to the preset online communication means.

The data management block of the present invention may switch the mobile device to a command standby state when a loss cancel message is received from the MDM server in response to the confirmation request.

In the present invention, when the user is not sure whether the status of the mobile device is theft or simple loss, the user issues a terminal loss command using the MDM server to automatically delete (destroy) the data after a predetermined period of time, It is possible to secure time for the user to easily recover the lost mobile device during a period of time, and to automatically grasp the status of the mobile device to completely delete the data and then to feedback to the owner (user) Reliability can be secured.

In addition, according to the present invention, when a mobile device receives a loss command from the MDM server and the mobile device is restarted (power is turned on again after the power is turned off), forced deletion (destruction) of data is immediately performed regardless of the elapse of a predetermined time , Malicious outflow of data due to the loss of the mobile device can be more reliably prevented.

1 is a configuration diagram of a data management system suitable for applying a data management method of a mobile device provided according to the present invention;
2 is a block diagram of a data management apparatus of a mobile device according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a main process in which a mobile device that has received a loss command message performs data management according to an embodiment of the present invention. FIG.

First, the advantages and features of the present invention, and how to accomplish them, will be clarified with reference to the embodiments to be described in detail with reference to the accompanying drawings. While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. It is to be understood that the following terms are defined in consideration of the functions of the present invention, and may be changed according to intentions or customs of a user, an operator, and the like. Therefore, the definition should be based on the technical idea described throughout this specification.

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

FIG. 1 is a block diagram of a data management system suitable for applying a data management method of a mobile device according to the present invention, and may include an MDM server 110, a network 120, a mobile device 130, and the like.

1, the MDM server 110 manages various services required by the mobile device 130, such as device management (e.g., automatic updating of mobile device firmware), usage registration and tracking management, registration / Remotely provide (manage) services such as authorization / withdrawal function, stopping the use of mobile devices in case of loss / theft (lock / unlock data), software distribution through mobile device management server, Can be provided.

In addition, when the user (the owner of the mobile device) reports a loss according to the present invention, the MDM server 110 generates a lost command message corresponding to the lost command message to transmit the network 120 to the mobile device 130, 130) to generate an acknowledgment message to approve the start of data deletion when a confirmation request is received at the start of data deletion, or to generate a loss cancellation message (or a status change command message And transmitting the generated information to the mobile device 130 through the network 120. [ Here, the network 120 may refer to a wired / wireless communication network including a wireless Internet.

The deletion command message transmitted from the MDM server 110 to the mobile device 130 may include predetermined deletion start time information. The deletion start time information may be arbitrarily set by the user (owner of the mobile device) have. Here, the deletion start time means a time at which the mobile device, which has received the loss command, starts data deletion after a predetermined fixed time (for example, within 24 hours) has elapsed.

Next, the mobile device 130 can execute the data management service according to the present invention (i.e., the application management control service according to the predetermined application management policy) provided from the MDM server 110 via the network 120 Which can be a user terminal such as a mobile phone, a smart phone, a smart pad, a notepad, a tablet PC or the like, which is equipped with an MDM agent application or the like, based on a lost command message received from the MDM server 110 The data management apparatus of the present invention, which is mounted on the mobile device 130 for the data management service, can provide the functions of the present invention as shown in FIG. 2, Configuration.

Here, although only one mobile device is illustrated for convenience of explanation and understanding, a mobile device managed by the MDM server 110 may include tens or thousands of devices.

FIG. 2 is a block diagram of a data management device of a mobile device according to an embodiment of the present invention. The device includes a time monitoring block 202, a battery management block 204, a terminal management execution block 206, a data management block 208, A power state detection block 210, a data monitoring block 212, and the like.

2, the time monitoring block 202 records the command reception time in an internal memory (not shown) when a lost command message is received from the MDM server 110 of FIG. 1 via the network 120, And counting the elapsed time thereafter to monitor whether or not a predetermined deletion start time is reached. If the counted elapsed time reaches a preset deletion start time, The signal is transmitted to the terminal management execution block 206.

Here, the preset deletion start time information may be arbitrarily set by a user of the corresponding mobile device, and may be included in the received loss command message. At this time, the deletion start time indicates a time at which the mobile device, which has received the loss command, starts deleting data after a predetermined fixed time (for example, within 24 hours) has elapsed.

The battery management block 204 also checks (checks) the remaining capacity of the battery (not shown) of the corresponding mobile device when the lost command message is received and its reception time is recorded in an internal memory (not shown) It is checked whether or not the remaining capacity is less than or equal to a predetermined minimum capacity range (for example, 20% or less of the total capacity of the battery), and the check result is transmitted to the time monitoring block 202 and the data management block 208 Can be provided. Here, when the battery management block 204 receives a detection signal for a predetermined minimum capacity range, the time monitoring block 202 may automatically terminate the execution of the count that has been in progress (including clearing the count value).

Further, the battery management block 204 monitors the current remaining capacity of the battery of the mobile device 130 during the counting of the elapsed time, which is started after the received loss command message is stored, It is possible to provide a function of checking whether or not the capacity is below the capacity range. When the present remaining capacity of the battery becomes less than the predetermined minimum capacity range during counting of the elapsed time, A forced delete command can be generated so as to be executed and transmitted to the data management block 208.

Next, when the deletion start time detection signal is transmitted from the time monitoring block 202, the terminal management execution block 206 generates a confirmation request message (or a deletion start authentication request message) To the remote location MDM server 110 via the Internet 120, for example.

Accordingly, in response to the confirmation request message received from the mobile device 130, the MDM server 110 transmits an approval message for approving the deletion of the data or a loss cancellation request for switching the mobile device 130 to the command waiting state Message (or a state changeover command message) to the corresponding mobile device 130.

On the other hand, the data management block 208 may receive an approval message or a cancellation message as a response to the confirmation request message from the MDM server 110. When the approval message is received, (Destroy) the stored data, and to switch the mobile device 130 to a command waiting state when a lost cancel message is received.

The data management block 208 also stores data stored in the storage space of the mobile device 130 when the detection signal for a predetermined minimum capacity range is delivered from the battery management block 204 (Destroying) the contents of the file.

Again, the power state detection block 210 monitors the power state of the mobile device 130 during the counting of the elapsed time that starts after storing the received loss command message to determine whether the mobile device 130 is restarted When the mobile device 130 is detected as a restart of the mobile device 130, a mandatory delete command is generated so that data can be forcibly deleted regardless of a predetermined deletion start time, ). Here, restarting the mobile device 130 may mean switching the power state to be turned on after the power of the mobile device is turned off.

For this, the data management block 208 provides a function of forcibly deleting (destroying) the data stored in the storage space of the mobile device 130 when the forced delete command is transmitted from the power state detection block 210 can do.

When the data management block 208 receives the grant message from the MDM server 110 and deletes the data stored in the storage space, the data monitoring block 212 generates a message informing the start of data deletion corresponding to the data And transmits the generated deletion start notification message to the online communication means (e.g., SMS, e-mail, etc.) preset by the user of the corresponding mobile device 130, (Deletion completion notification message) indicating completion of the deletion when the deletion of the data stored in the online communication means is completed, and transmitting the message to the preset online communication means.

Next, a series of processes for providing the data management service to the users of the mobile device through the data management apparatus of the present invention having the above-described configuration will be described in detail.

FIG. 3 is a flowchart illustrating a main procedure of a mobile device receiving a loss command message according to an exemplary embodiment of the present invention.

Referring to FIG. 3, in the MDM server 110, when a user of a specific mobile device (for example, 130 in FIG. 1) reports a loss (on-line loss report), a corresponding loss command message, And transmits the lost command message to the corresponding mobile device 130 through the network 120. As a result, in the time monitoring block 202 of the corresponding mobile device 130, And receives a lost command message (step 302).

In response, the time monitoring block 202 records the reception time of the lost command message received from the MDM server 110 in the internal memory (step 304), notifies the battery management block 204 of the reception time of the lost command message, The management block 204 checks the remaining capacity of the battery (step 306).

Thereafter, in step 308, it is checked whether or not the inspected remaining capacity n is equal to or less than a predetermined minimum capacity range (for example, 20% or less of the total capacity of the battery) (m) The process proceeds to step 326. As a result, the data management block 208 deletes (destroys) the data stored in the storage space regardless of the elapse of a predetermined period of time ) Is forcibly executed.

That is, when the remaining capacity of the battery of the mobile device 130 is less than a predetermined minimum capacity range at the time when the loss command message is received from the MDM server 110 to the mobile device 130, It may be set to immediately execute the deletion of the data instead of deleting the data after the elapse of time, in order to prevent the deletion of the data from being failed due to a battery shortage (power-off) of the mobile device.

In step 310, the time monitoring block 202 counts the elapsed time when the remaining capacity of the battery is greater than or equal to the predetermined minimum capacity range (step 310). If the counted elapsed time s reaches the predetermined deletion start time p (Step 316). At this time, the power state detection block 210 monitors the power state of the mobile device 130 during the counting of the elapsed time started after storing the received loss command message (step < RTI ID = 0.0 & Step 312) and it is checked through this monitoring whether the mobile device 130 is restarted, that is, turned back on after the power is turned off (step 314).

If it is determined in step 314 that the mobile device 130 is restarted, the power state detection block 210 notifies the data management block 208 of the detection result, (Destruction) of the data stored in the storage space is forcibly executed irrespective of the elapse of a predetermined period of time.

That is, when the restart of the mobile device 130 is detected while the MDM server 110 is counting the elapsed time of the mobile device 130 from the lost command message, It can be set to immediately execute the deletion of the data instead of deleting the data after elapse of a certain period of time. This is because it is considered that someone who has acquired the mobile device turns off / on the power of the device as an action for malicious data leakage And immediately forcibly deletes the data.

If the counted elapsed time s does not reach the preset deletion start time p as a result of the check at the step 316, the process returns to the step 306 described above and the subsequent steps To 314), that is, whether the current remaining capacity of the battery is less than or equal to a predetermined minimum capacity while counting the elapsed time is monitored, or whether the mobile device 130 is restarted, When it is determined that the current remaining capacity is less than or equal to the preset minimum capacity, or when it is determined that the mobile device 130 is to be restarted, the process proceeds to step 326 to execute a procedure for forcible deletion of data.

On the other hand, if it is determined in step 316 that the counted elapsed time (s) has reached the predetermined deletion start time (p), the terminal management execution block 206 confirms (Or a deletion initiated authentication request message) to the MDM server 110 via the network 120 (step 318).

Thereafter, the data management block 208 checks whether an approval message is received from the MDM server 110 in response to the confirmation request message or whether a loss cancel message is received (steps 320 and 322).

As a result of the check in step 322, when the loss canceling message is received from the MDM server 110, the data management block 208 sets the mobile device 130 in a command waiting state without deleting the data stored in the storage space (Step 324). Here, the fact that the MDM server 110 transmits a lost cancellation message to the mobile device 130 may mean that the lost report for the corresponding mobile device is canceled (e.g., canceled by the owner of the corresponding mobile device). At this time, the function of switching the mobile device 130 to the command standby state may be set to be executed in the terminal management execution block 206. [

As a result of the check in step 320, when an approval message is received from the MDM server 110, the data management block 208 starts deleting (destroying) the data stored in the storage space (step 326) The data monitoring block 212 determines whether the data stored in the mobile device 130 is stored in the data monitoring block 212 so that the owner of the mobile device 130 can recognize the current situation And transmits (sends) the generated deletion start notification message to the online communication means (e.g., SMS, e-mail, etc.) preset by the user of the corresponding mobile device 130 (step 328 ).

Thereafter, the data monitoring block 212 monitors whether data deletion is terminated (step 330). If it is determined that deletion of the monitoring result data here is completed, (E.g., SMS, e-mail, etc.) to generate a deletion completion notification message corresponding to the owner of the mobile phone 130 so that the owner of the mobile phone 130 can recognize the current situation (Step 332).

In the meantime, each block of the accompanying block diagrams and combinations of steps of the flowchart may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus so that the instructions, which may be executed by a processor of a computer or other programmable data processing apparatus, And means for performing the functions described in each step are created. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner, It is also possible for the instructions stored in the block diagram to produce a manufacturing item containing instruction means for performing the functions described in each block or flowchart of the block diagram. Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible that the instructions that perform the processing equipment provide the steps for executing the functions described in each block of the block diagram and at each step of the flowchart.

Also, each block or each step may represent a module, segment, or portion of code that includes at least one or more executable instructions for executing the specified logical function (s). It should also be noted that in some alternative embodiments, the functions mentioned in the blocks or steps may occur out of order. For example, two blocks or steps shown in succession may in fact be performed substantially concurrently, or the blocks or steps may sometimes be performed in reverse order according to the corresponding function.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. It is easy to see that this is possible. In other words, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention.

Therefore, the scope of protection of the present invention should be construed in accordance with the following claims, and all technical ideas within the scope of equivalents should be interpreted as being included in the scope of the present invention.

202: time monitoring block 204: battery management block
206: terminal management execution block 208: data management block
210: power state detection block 212: data monitoring block

Claims (22)

Counting an elapsed time after recording a command reception time when a lost command message including a preset deletion start time is received from the MDM server,
And starting the deletion of the data stored in the mobile device when the elapsed time counted is the predetermined deletion start time
The method comprising the steps of:
The method according to claim 1,
The starting process may include:
Requesting confirmation to start the deletion of data to the MDM server and executing when an approval message is received from the MDM server in response to the confirmation request
A method for managing data in a mobile device.
The method according to claim 1,
The method comprises:
When the deletion of the data is started, a message informing the start of deletion is generated and transmitted to the online communication means set by the user of the mobile device
Further comprising the steps of:
The method according to claim 1,
The method comprises:
When the deletion of the data is completed, a message informing completion of the deletion is generated and transmitted to the online communication means set by the user of the mobile device
Further comprising the steps of:
delete The method according to claim 1,
The predetermined deletion start time is a time
Is set by a user of the mobile device
A method for managing data in a mobile device.
Recording a command reception time when a lost command message including a predetermined deletion start time is received from the MDM server;
Checking whether a remaining capacity of the battery of the mobile device is less than a preset minimum capacity;
Counting an elapsed time when the capacity is not less than the preset minimum capacity;
Requesting the MDM server to confirm deletion of data when the remaining capacity is less than or equal to the preset minimum capacity or the elapsed time counted is the predetermined deletion start time;
A step of starting deletion of data stored in the mobile device when an acknowledgment message for the confirmation request is received from the MDM server
The method comprising the steps of:
8. The method of claim 7,
The method comprises:
Monitoring a current remaining capacity of the battery while counting the elapsed time;
Starting the forced deletion of the data regardless of the predetermined deletion start time when the current remaining capacity becomes the predetermined minimum capacity or less
Further comprising the steps of:
8. The method of claim 7,
The method comprises:
Monitoring a power state of the mobile device while counting the elapsed time;
When the power of the mobile device is turned off and then turned on, a process of starting forced deletion of the data regardless of the predetermined deletion start time
Further comprising the steps of:
8. The method of claim 7,
The method comprises:
When the deletion of the data is started, a message informing the start of deletion is generated and transmitted to the online communication means set by the user of the mobile device
Further comprising the steps of:
8. The method of claim 7,
The method comprises:
When the deletion of the data is completed, a message informing completion of the deletion is generated and transmitted to the online communication means set by the user of the mobile device
Further comprising the steps of:
delete 8. The method of claim 7,
The predetermined deletion start time is a time
Is set by a user of the mobile device
A method for managing data in a mobile device.
8. The method of claim 7,
The method comprises:
A step of switching the mobile device to a command waiting state when a loss canceling message is received from the MDM server in response to the confirmation request
Further comprising the steps of:
A time monitoring block that records an instruction reception time when a loss command message including a preset deletion start time is received from the MDM server and then counts an elapsed time and monitors whether or not a predetermined deletion start time is reached;
A battery management block for inspecting a remaining capacity of the battery of the mobile device when the reception time is recorded and for checking whether the remaining capacity is less than or equal to a predetermined minimum capacity;
A terminal management execution block for requesting the MDM server to confirm deletion of data when the remaining capacity is less than or equal to the predetermined minimum capacity or the elapsed time counted is the predetermined deletion start time;
A data management block for deleting data stored in the mobile device when an acknowledgment message for the confirmation request is received from the MDM server,
The data management apparatus comprising:
16. The method of claim 15,
The battery management block includes:
Monitoring the current remaining capacity of the battery during counting of the elapsed time, and when the current remaining capacity becomes less than or equal to the predetermined minimum capacity, Mandatory deletion of
A data management device of a mobile device.
16. The method of claim 15,
The apparatus comprises:
The data management unit monitors the power state of the mobile device while counting the elapsed time, and when it is detected that the power is turned on after the power is turned off, regardless of the predetermined deletion start time, The power state detection block
The data management apparatus comprising:
16. The method of claim 15,
The apparatus comprises:
A data monitoring block for generating a message informing the start of deletion of the data and transmitting the generated message to the online communication means set by the user of the mobile device
The data management apparatus comprising:
19. The method of claim 18,
The data monitoring block includes:
When the deletion of the data is completed, a message indicating the completion of the deletion is generated and transmitted to the predetermined online communication means
A data management device of a mobile device.
delete 16. The method of claim 15,
The predetermined deletion start time is a time
Is set by a user of the mobile device
A data management device of a mobile device.
16. The method of claim 15,
The data management block includes:
In response to the confirmation request, to switch the mobile device to a command waiting state when a loss canceling message is received from the MDM server
A data management device of a mobile device.

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