CN105893185A - Data backup method and device - Google Patents

Abstract

The embodiment of the present invention discloses a data backup method and device; the data backup method adopts receiving an acceleration acquisition instruction, obtains the current acceleration of a terminal according to the acceleration acquisition instruction, and then determines whether the terminal is currently in a falling state according to the acceleration, and if it is determined that the terminal is currently in a falling state, the data of the terminal is backed up; the scheme judges the state of the terminal according to the acceleration of the terminal, and automatically backs up the data on the terminal when the terminal is in a falling state. Compared with the prior art, it can effectively prevent the loss of user data caused by the terminal falling.

Description

A data backup method and device

technical field

The present invention relates to the technical field of terminals, in particular to a data backup method and device.

Background technique

With the rapid development of terminal devices, terminal devices such as mobile phones and tablet computers are widely used. Users can use these terminal devices to carry out various activities such as communication and entertainment.

At present, in order to meet the needs of consumers, manufacturers are increasingly emphasizing the visual impact brought by the human-computer interaction interface, such as making the screen of the mobile phone larger and larger, the touch screen and the display screen getting tighter and tighter, and the borders getting tighter. narrower and larger screen-to-body ratios. With the improvement of these performances of the mobile terminal, the price becomes higher and higher, and at the same time, it becomes more and more fragile under the action of impact force, and the relevant protection of the mobile terminal against falling is becoming more and more important.

The mobile terminal is a terminal device that is widely used by people. It is always carried on the body. However, due to carelessness or careless use, the terminal is often in danger of falling. After the terminal falls, some hardware may be damaged. The hardware often affects the Programs and data in the terminal, and these programs and data cannot be recovered after being damaged, so the data will be lost after the terminal falls.

Contents of the invention

Embodiments of the present invention provide a data backup method and device, which can solve the technical problem of data loss after a terminal falls.

An embodiment of the present invention provides a data backup method, including:

Receive acceleration acquisition instructions;

Acquiring the current acceleration of the terminal according to the acceleration acquisition instruction;

determining whether the terminal is currently in a falling state according to the acceleration;

If it is determined that the terminal is currently in a dropped state, backing up the data of the terminal.

Further, the step of backing up the data of the terminal specifically includes:

receiving a data acquisition instruction, the data acquisition instruction indicating the target data to be backed up and the data storage area where the target data is located;

Acquiring the target data from the data storage area according to the data acquisition instruction;

Back up the target data.

Further, the step of backing up the target data specifically includes:

receiving a data backup instruction, the data backup instruction indicating a backup area;

storing the target data in the backup area according to the data backup instruction.

Further, the step of backing up the target data specifically includes:

Sending a backup request to a backup server, where the backup request carries the target data, so that the server backs up the target data according to the backup request.

Further, after it is determined that the terminal is currently in a falling state, before backing up the data of the terminal, the method further includes:

Obtain the duration of the terminal being in the falling state;

judging whether the duration is greater than a preset duration;

If yes, execute the step of backing up the data of the terminal.

Further, the step of determining whether the terminal is currently in a falling state according to the acceleration specifically includes:

judging whether the acceleration is greater than or equal to the acceleration of gravity;

If so, then determine that the current state of the terminal is a falling state;

If not, it is determined that the current state of the terminal is not a falling state.

The embodiment of the present invention also provides a data backup device, including: a receiving module, a first acquiring module, a determining module and a backup module;

The receiving module is configured to receive an acceleration acquisition instruction;

The first acquisition module is configured to acquire the current acceleration of the terminal according to the acceleration acquisition instruction;

The determining module is configured to determine whether the terminal is currently in a falling state according to the acceleration;

The backup module is configured to back up the data of the terminal when the determination module determines yes.

Further, the backup module specifically includes: a receiving submodule, an acquisition submodule and a backup submodule;

The receiving submodule is configured to receive a data acquisition instruction, the data acquisition instruction indicates the target data to be backed up and the data storage area where the target data is located;

The acquisition submodule is configured to acquire the target data from the data storage area according to the data acquisition instruction;

The backup submodule is used to back up the target data.

Further, the device further includes: a second acquiring module and a judging module;

The second obtaining module is configured to obtain the duration of the terminal being in the falling state after the determining module determines that the terminal is currently in the falling state and before the backup module backs up the data of the terminal;

The judging module is used to judge whether the duration is greater than a preset duration;

The backup module is specifically configured to back up the data of the terminal when the judging module judges yes.

Further, the determining module specifically includes: a judging submodule and a determining submodule;

The judging submodule is used to judge whether the acceleration is greater than or equal to the acceleration of gravity;

The determining submodule is used to determine that the current state of the terminal is a falling state when the judgment submodule judges yes; and determine that the current state of the terminal is not a falling state when the judgment submodule judges no .

The embodiment of the present invention first receives an acceleration acquisition instruction, obtains the current acceleration of the terminal according to the acceleration acquisition instruction, and then determines whether the terminal is currently in a falling state according to the acceleration, and if it is determined that the terminal is currently in a falling state, back up the data of the terminal; the solution The state of the terminal is judged by the acceleration of the terminal, and the data on the terminal is automatically backed up when the terminal is in a falling state. Compared with the prior art, it can effectively prevent the loss of user data after the terminal falls.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic flow chart of a data backup method provided by Embodiment 1 of the present invention;

FIG. 2 is a schematic flowchart of a data backup method provided by Embodiment 2 of the present invention;

FIG. 3 is a schematic structural diagram of a data backup device provided in Embodiment 3 of the present invention;

4 is a schematic structural diagram of a second data backup device provided by Embodiment 3 of the present invention;

FIG. 5 is a schematic structural diagram of a third data backup device provided by Embodiment 3 of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

Embodiments of the present invention provide a data backup method and device. The details will be described respectively below.

Embodiment one,

This embodiment will be described from the perspective of a data backup device. Specifically, the data backup device can be integrated into a terminal. The terminal can be a mobile Internet device (such as a smart phone, a tablet computer), a smart wearable device (such as a smart watch) electronic equipment.

Please refer to FIG. 1. FIG. 1 is a schematic flow chart of a data backup method provided by Embodiment 1 of the present invention. The data backup method of this embodiment includes:

Step S101, receiving an acceleration acquisition instruction.

In the embodiment of the present invention, there are many ways to generate the acceleration acquisition instruction, for example, it can be automatically generated by the terminal system, or the instruction can be generated through user operation, etc., wherein the automatic generation of the instruction by the terminal system is a preferred embodiment .

Optionally, the specific process of the step "receiving an acceleration acquisition instruction" may include: generating an acceleration acquisition instruction every preset time period, which is used to obtain the acceleration of the current terminal. For example, a timer can be set, and the timer can be set The acceleration acquisition instruction is generated every 2s, wherein the time interval can be set according to actual needs, for example, the equal time interval can be set to 0.01s, 0.02s and so on. In order to save terminal power, the time interval can be set to a larger value, such as 1s, 2s, etc., which is not specifically limited in the present invention.

Step S102, acquiring the current acceleration of the terminal according to the acceleration acquiring instruction.

In the embodiment of the present invention, there may be multiple ways to obtain the current acceleration of the terminal, for example, the acceleration value may be obtained by setting an acceleration sensor in the terminal.

Wherein, the position of the acceleration sensor can be set according to the actual situation, for example, it can be placed at the center of gravity of the terminal, or at the edge of the terminal. Further, the number of acceleration sensors may also be determined according to actual conditions, that is, a plurality of acceleration sensors are evenly distributed in the terminal to obtain more accurate acceleration values.

Step S103, determine whether the terminal is currently in a falling state according to the above acceleration, if yes, execute step S104, if not, return to step S101.

Wherein, the acceleration in the embodiment of the present invention refers to the acceleration of the terminal in a weightless state, so as to distinguish the situation where the terminal follows the user's movement and is misjudged as the terminal falling (for example: the user carries the terminal on the elevator, accelerates and decelerates while running, etc.). Therefore, after the terminal obtains the current acceleration, the step of "determining whether the terminal is currently in a falling state according to the above acceleration" may specifically include:

Determine whether the current acceleration direction is downward, if so, determine whether the terminal is currently in a falling state, if not, return to step S101, and continue to receive acceleration acquisition instructions

Specifically, if the current acceleration direction is downward, the acceleration threshold can be set in advance, and it is judged whether the terminal is currently in a falling state according to the comparison between the above acceleration and the acceleration threshold, that is, the step of "judging whether the terminal is currently in a falling state" can be specified include:

Judging whether the current acceleration of the terminal is greater than or equal to the acceleration threshold;

If yes, it is determined that the terminal is in a falling state.

For example, the acceleration threshold a is preset as a reference value for comparison with the acquired downward acceleration information b, and when b≥a, it is determined that the downward acceleration information satisfies the preset acceleration threshold and the terminal is determined to be in a falling state ; When b<a, it is determined that the above-mentioned downward acceleration information does not meet the above-mentioned preset acceleration threshold, and it is determined that the terminal is not in a falling state.

In the embodiment of the present invention, it is necessary to compare the acceleration with the acceleration threshold to determine whether the terminal is in a falling state. However, considering that in practical applications, it is not necessary to When it is in a stable state for a period of time (such as being placed on a table), the current acceleration will not change. In this case, the terminal does not need to compare the current acceleration with the acceleration threshold. Therefore, in this embodiment, in Before the step of judging whether the current acceleration of the terminal is greater than or equal to the acceleration threshold, the method may further include:

Obtain the acceleration of the terminal detected last time, and use the acceleration of the terminal detected last time as the historical acceleration;

Determine whether the current state of the terminal changes according to the current acceleration and historical acceleration, and if so, determine whether the current acceleration of the terminal is greater than or equal to an acceleration threshold.

Wherein, the above-mentioned step of determining whether the current state of the terminal changes according to the current acceleration and the historical acceleration may specifically include:

Determine whether the current acceleration is the same as the above-mentioned historical acceleration;

If yes, it is determined that the current state of the terminal has changed; if not, it is determined that the current state of the terminal has not changed.

Step S104, backing up the data in the terminal.

Specifically, when it is determined that the terminal is currently in a dropped state, the specific process of the step "backing up the data in the terminal" may include: obtaining target data that needs to be backed up in the terminal, wherein the target data can be set by the user according to actual needs For example, set important contact information, call records, chat records, photos, installed application program information, etc. in the mobile phone as target data, and then back up the above target data. "Backup the data in the terminal" may specifically include:

Obtain the target data that needs to be backed up in the terminal;

Back up the above target data.

Further, before backing up the target data, the storage device for storing the target data can be determined first, wherein the storage device can be a cloud corresponding to the terminal (such as 360 cloud disk, Baidu cloud disk, etc. Network virtual storage provided by the server), removable data card (such as conventional SD card, TF card and other data storage cards, or SIM card and other user identification cards with certain data storage capabilities), terminal built-in storage (such as terminal memory) etc.

Preferably, considering that the terminal system needs to supply power to the acceleration sensor in real time and bring additional power consumption, the present invention can also integrate a switch in the system settings of the terminal, which can be controlled by the user to turn on and off the data backup function of the terminal.

It can be seen from the above that the embodiment of the present invention adopts the method of receiving an acceleration acquisition instruction, and obtains the current acceleration of the terminal according to the acceleration acquisition instruction, and then determines whether the terminal is currently in a falling state according to the acceleration, and if it is determined that the terminal is currently in a falling state, the data of the terminal Backup: This solution judges the state of the terminal through the acceleration of the terminal, and automatically backs up the data on the terminal when the terminal is in a falling state. Compared with the existing technology, it can effectively prevent the loss of user data after the terminal falls. The terminal data can be protected in time, and the terminal data backup process is simple, no user operation is required, and the degree of intelligence is high.

Embodiment two,

This embodiment will further introduce the data backup method of the present invention on the basis of Embodiment 1, please refer to Figure 2, including:

Step S201, the terminal receives an acceleration acquisition instruction.

In the embodiment of the present invention, an acceleration acquisition command is generated every preset time, which can be set by the terminal system, or can be set by the user according to actual needs. For example, in the user's smart phone, every Generate an acceleration acquisition instruction every 0.5s, which is used to call the data in the acceleration sensor.

In step S202, the terminal obtains the current acceleration according to the acceleration obtaining instruction.

For example, after receiving the acceleration acquisition request, an instruction to acquire acceleration is sent to the acceleration sensor of the terminal, and the current acceleration is acquired in the data storage area corresponding to the acceleration sensor according to the instruction.

In step S203, the terminal judges whether the above-mentioned acceleration is greater than or equal to the acceleration of gravity, if yes, execute step S204, and if not, return to step S201.

In practical applications, the gravitational acceleration g usually refers to the acceleration of an object near the ground falling in a vacuum under the gravitational force of the earth. For the convenience of calculation, its approximate standard value is usually taken as 980cm/s ² or 9.8m/s ² , but considering the gravity The acceleration will change according to objective factors such as altitude, latitude, and air density, so setting only a fixed value may cause the terminal to make wrong judgments. For example, in places with higher altitudes, the local gravity acceleration will be slightly higher than 9.8m/s ² It is too small, so you can set a range (for example, 9.7m/s ² —9.9m/s ² ), and judge whether the current acceleration value is within the range. If so, then determine that the terminal is currently in a falling state; if not, then determine The terminal is not currently in a falling state, and returns to step S201 to continue receiving acceleration acquisition instructions.

In step S204, the terminal acquires the duration of the falling state.

In the embodiment of the present invention, considering that if the terminal falls from a lower place, or when the user picks up the terminal and shakes it up and down (such as using WeChat's "shake"), the terminal will not be substantially damaged, so There is no need to back up the user data, so in order to improve the accuracy of judging that the terminal is in the dropped state, further judgment can be made according to the duration of the terminal in the dropped state.

Among them, there are many ways to obtain the duration of the terminal being in the falling state. For example, a timer can be set. When it is determined that the current acceleration of the terminal is greater than or equal to the acceleration of gravity, the timer is started until the current acceleration of the terminal is less than the acceleration of gravity. , wherein, the real-time acquisition of the duration of the timer is the duration of the current falling state of the terminal.

In step S205, the terminal judges whether the above duration is greater than the preset duration, if yes, execute step S206, if not, return to step S201.

For example, this embodiment can set a time threshold t. Correspondingly, when it is determined that the current acceleration of the terminal is greater than or equal to the acceleration of gravity, it is further judged whether the duration t1 of the terminal in the falling state satisfies the time threshold t. When t1≥t When t1<t, it is determined that the duration of the terminal being in the falling state does not meet the preset duration, and then returns to step S201 to continue receiving acceleration acquisition instruction.

Step S206, the terminal receives a data acquisition instruction.

In the embodiment of the present invention, the data acquisition instruction indicates the target data to be backed up and the data storage area where the target data is located, wherein the target data can be data information set by the user according to actual needs, for example, the Important contact information, call records, chat records, photos, installed application program information, etc. are set as target data, and the data storage area is the device that stores the target data, such as the rom of the mobile phone (Read-Only Memory, only read memory).

Step S207, the terminal acquires the target data from the data storage area according to the above data acquisition instruction.

Optionally, a data backup template can be pre-set in the terminal, through which the user can select the data that needs to be automatically backed up. When the data backup device determines that the mobile terminal currently satisfies the preset data backup conditions, the data backup device will The data backup template automatically obtains the target data to be backed up on the mobile terminal from the data storage area.

Step S208, the terminal backs up the above target data.

Specifically, the process of the step "backing up the target data" may specifically include: receiving a data backup instruction, wherein the data backup instruction indicates a backup area for storing the target data, such as a built-in memory of the terminal (such as a terminal memory), Removable data cards (such as conventional SD cards, TF cards and other data storage cards, or subscriber identification cards with certain data storage capabilities such as SIM cards and 3G cards), etc., that is, the step "backup the target data" can be specified include:

Receive a data backup instruction, and the data backup instruction indicates the backup area;

The target data is stored in the backup area according to the data backup instruction.

In practical applications, considering that the terminal may cause hardware damage due to falling, such as terminal memory, removable data card, etc. may cause damage, resulting in backup data that cannot be restored and causing inconvenience to users. Therefore, this embodiment also On the basis of the above backup method, the target data that needs to be backed up can be backed up on the server, that is, the step "backing up the target data" can specifically include:

A backup request is sent to the backup server, where the backup request carries target data, so that the server backs up the target data according to the backup request.

In the embodiment of the present invention, a folder can be established on the server in advance, such as obtaining the identification information of the terminal, establishing a folder on the server according to the identification information, and storing the target data in the folder when backup is required. The terminal and the server in the embodiment may be connected in a wired or wireless manner, which is not limited here.

Considering that in an emergency or sudden situation, due to the short time, the amount of data to be backed up that can be uploaded to the server during this process is limited. Therefore, the data to be backed up can be prioritized. The priority It can be set by the user according to the actual situation, such as setting the contact information in the mobile phone as the first priority, photos as the second priority, and the application installation list as the third priority, etc., and then according to the priority when backing up The result of the level sorting is backed up, that is, the step "the server backs up the target data according to the backup request" may include:

Prioritize the above target data to obtain the sorting results;

The target data is backed up according to the sorting result and the backup request.

It can be seen from the above that the embodiment of the present invention adopts the method of receiving an acceleration acquisition instruction, obtains the current acceleration of the terminal according to the acceleration acquisition instruction, and then determines whether the terminal is currently in a falling state according to the acceleration. If it is determined that the terminal is currently in a falling state and the duration of the falling state is If it is longer than the preset duration, the data acquisition instruction will be received and the target data will be obtained from the data storage area according to the instruction, and then the target data will be backed up; this scheme judges the state of the terminal through the acceleration of the terminal, and when the terminal is in a falling state Automatically back up the data on the terminal. Compared with the existing technology, it can effectively prevent the loss of user data caused by the terminal falling, and the backup is carried out in the terminal and the server at the same time, so that the terminal data can be protected in time and further improve the The security of user data, on the other hand, the implementation process of the terminal data backup is simple, no user operation is required, and the degree of intelligence is high, which brings better user experience to users.

Embodiment three,

In order to better implement the above method, an embodiment of the present invention also provides a data backup device, which can be integrated into a terminal, and the terminal can be a mobile Internet device (such as a smart phone, a tablet computer), a smart wearable device ( Such as smart watches) and other electronic devices. As shown in Figure 3, the data backup device may include: a receiving module 301, a first acquiring module 302, a determining module 303 and a backup module 304;

The receiving module 301 is configured to receive an acceleration acquisition instruction.

There may be multiple ways to generate the acceleration acquisition instruction, for example, the instruction may be automatically generated by the terminal system, or the instruction may be generated through user operation.

The first obtaining module 302 is configured to obtain the current acceleration of the terminal according to the acceleration obtaining instruction.

Among them, there are many ways to acquire the current acceleration of the terminal. For example, after receiving the acceleration acquisition request, the first acquisition module 302 sends an instruction to acquire the acceleration to the acceleration sensor of the terminal. Get the current acceleration in the area.

The determining module 303 is configured to determine whether the terminal is currently in a falling state according to the acceleration.

Specifically, an acceleration threshold (such as gravitational acceleration) may be preset. The determination module 303 judges whether the terminal is currently in a falling state according to a comparison between the current acceleration and the acceleration threshold. If the current acceleration is greater than or equal to the acceleration threshold, it is determined that the terminal is currently in a falling state. Falling state; if the current acceleration is less than the acceleration threshold, it is determined that the terminal is not currently in a falling state.

The backup module 304 is configured to back up data of the terminal when the determination module 303 determines yes.

For example, in the user's mobile phone, the backup module 304 sets important contact information, call records, chat records, photos, installed application program information, etc. in the mobile phone as target data, and then backs up the above target data.

Preferably, as shown in FIG. 4, the backup module 304 in the data backup device provided by the embodiment of the present invention may specifically include: a receiving submodule 3041, an obtaining submodule 3042, and a backup submodule 3043;

The receiving sub-module 3041 is configured to receive a data acquisition instruction, the above data acquisition instruction indicates the target data to be backed up and the data storage area where the target data is located;

The acquisition sub-module 3042 is configured to acquire target data from the data storage area according to the data acquisition instruction;

The backup submodule 3043 is used for backing up target data.

The above determination module 303 may specifically include: a judgment submodule 3031 and a determination submodule 3032;

The judging sub-module 3031 is used to judge whether the acceleration is greater than or equal to the acceleration of gravity;

The determining sub-module 3032 is used to determine that the current state of the terminal is a dropped state when the judgment of the judgment sub-module 3031 is yes; and determine that the current state of the terminal is not a fall state when the judgment of the judgment sub-module 3031 is no.

Preferably, as shown in FIG. 5, the data backup device provided by the embodiment of the present invention may further include: a second acquiring module 305 and a judging module 306;

The second acquiring module 305 is configured to acquire the duration of the terminal being in the falling state after the determining module 303 determines that the terminal is currently in the falling state and before the backup module 304 backs up the data of the terminal;

The judging module 306 is used to judge whether the above-mentioned duration is greater than a preset duration;

The backup module 304 is specifically configured to back up the data of the terminal when the judging module 306 judges yes.

It can be seen from the above that the embodiment of the present invention adopts the receiving module 301 to receive the acceleration acquisition instruction, the first acquisition module 302 acquires the current acceleration of the terminal according to the acceleration acquisition instruction, and then the determination module 303 determines whether the terminal is currently in a falling state according to the acceleration, if determined The terminal is currently in a falling state, and the backup module 304 backs up the data of the terminal; this solution judges the state of the terminal through the acceleration of the terminal, and automatically backs up the data on the terminal when the terminal is in a falling state. Compared with the prior art As far as the terminal is concerned, it can effectively prevent the loss of user data after the terminal falls, so that the terminal data can be protected in time, and the terminal data backup process is simple, no user operation is required, the degree of intelligence is high, and there is a better user experience.

During specific implementation, each of the above modules may be implemented as an independent entity, or may be combined arbitrarily as the same or several entities. For the specific implementation of each of the above modules, please refer to the previous method embodiments, which will not be repeated here.

It should be noted that those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as It is stored in the memory of the terminal and executed by at least one processor in the terminal, and the execution process may include the flow of the embodiment of the information publishing method. Wherein, the storage medium may include: a read only memory (ROM, Read Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and the like.

A data backup method and device provided by the embodiment of the present invention has been introduced in detail above. Its functional modules can be integrated into one processing chip, or each module can exist separately physically, or two or more than two modules can be integrated. in a module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. In this paper, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; meanwhile, for those skilled in the art, according to the present invention Thoughts, specific implementation methods and scope of application all have changes. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. a data back up method, it is characterised in that comprise the following steps:

Receive acceleration and obtain instruction；

Obtain instruction according to described acceleration and obtain the acceleration that terminal is current；

Determine the most described terminal is according to described acceleration and fall state；

If it is determined that described terminal is currently at and falls state, then the data of described terminal are backed up.

2. data back up method as claimed in claim 1, it is characterised in that the described number to described terminal Specifically include according to the step carrying out backing up:

Reception data acquisition instructs, and the instruction instruction of described data acquisition needs the target data and described of backup The data storage areas at target data place；

From described data storage areas, described target data is obtained according to the instruction of described data acquisition；

Described target data is backed up.

3. data back up method as claimed in claim 2, it is characterised in that described to described target data The step carrying out backing up specifically includes:

Backup reception data instructs, described data backup command instruction backup region；

According to described data backup command, described target data is stored to described backup region.

4. data back up method as claimed in claim 2, it is characterised in that described to described target data The step carrying out backing up specifically includes:

Sending backup request to backup server, described backup request carries described target data, so that institute State server according to described backup request, described target data to be backed up.

5. data back up method as claimed in claim 1, it is characterised in that determining that described terminal is current Being in after falling state, before backing up the data of described terminal, described method also includes:

Obtain described terminal and be in the duration falling state；

Judge that whether described duration is more than preset duration；

The most then perform the step that the data of described terminal are backed up.

6. data back up method as claimed in claim 1, it is characterised in that described according to described acceleration Determine the most described terminal is in fall the step of state and specifically include:

Judge that whether described acceleration is more than or equal to acceleration of gravity；

If, it is determined that described terminal current state is for falling state；

If not, it is determined that described terminal current state is not for falling state.

7. a data backup device, it is characterised in that including: receiver module, the first acquisition module, Determine module and backup module；

Described receiver module, is used for receiving acceleration and obtains instruction；

Described first acquisition module, obtains, for obtaining instruction according to described acceleration, the acceleration that terminal is current Degree；

Described determine module, fall shape for determining the most described terminal is according to described acceleration State；

Described backup module, for when described determine that module is determined as time, the data of described terminal are carried out Backup.

8. data backup device as claimed in claim 7, it is characterised in that described backup module specifically wraps Include: receive submodule, obtain submodule and backup submodule；

Described reception submodule, is used for receiving data acquisition instruction, and the instruction instruction of described data acquisition needs standby The target data of part and the data storage areas at described target data place；

Described acquisition submodule, for obtaining from described data storage areas according to the instruction of described data acquisition Described target data；

Described backup submodule, for backing up described target data.

9. data backup device as claimed in claim 7, it is characterised in that described device also includes: the Two acquisition modules and judge module；

Described, described second acquisition module, for determining that module determines that described terminal is currently at and falls state Afterwards, before the data of described terminal are backed up by described backup module, obtain described terminal and be in and fall The duration of state；

Described judge module, is used for judging that whether described duration is more than preset duration；

Described backup module, specifically for when described judge module is judged as YES, the data to described terminal Back up.

10. data backup device as claimed in claim 7, it is characterised in that described determine that module is concrete Including: judge submodule and determine submodule；

Described judgement submodule, is used for judging that whether described acceleration is more than or equal to acceleration of gravity；

Described determine submodule, for when described judgement submodule is judged as YES, determine that described terminal is current State is for falling state；When described judgement submodule is judged as NO, determine that described terminal current state is not Fall state.