CN106546769A - A kind of acceleration transducer calibration steps and system - Google Patents
A kind of acceleration transducer calibration steps and system Download PDFInfo
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- CN106546769A CN106546769A CN201710039704.3A CN201710039704A CN106546769A CN 106546769 A CN106546769 A CN 106546769A CN 201710039704 A CN201710039704 A CN 201710039704A CN 106546769 A CN106546769 A CN 106546769A
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- acceleration transducer
- mobile terminal
- calibration
- knots modification
- threshold value
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
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- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a kind of acceleration transducer calibration steps and system, methods described includes：Obtain the positional information of mobile terminal and calculate its position knots modification；The acquisition of calibration parameter is judged whether to according to the relation of position knots modification and predetermined threshold value；After calibration parameter is read, acceleration transducer is calibrated according to calibration parameter.Methods described obtains the calibration parameter of the acceleration transducer of diverse location, the acceleration transducer in mobile terminal is correspondingly calibrated according to the calibration parameter of the mobile terminal diverse location for obtaining, so that the acceleration that acceleration transducer is detected is more accurate, to meet user for the requirement of high-precision motion detection application.
Description
Technical field
The present invention relates to field of mobile terminals, more particularly to a kind of acceleration transducer calibration steps and system.
Background technology
Acceleration transducer is carried in mobile terminal all, acceleration transducer plays huge in mobile terminal motion detection
Big effect, if the screen rotation of mobile terminal, navigation, game etc..Acceleration transducer is according to detected acceleration
Identifying user operates the action of mobile terminal, but due to the impact of the factors such as geographical position, height above sea level, electromagnetic field, acceleration is at any time
Fine difference is there may be everywhere.So in the case of different geographical position, height above sea level, electromagnetic field, even if user is to movement
Terminal makes identical action, and mobile terminal is identified also can be variant.For being normally applied, the small difference of this acceleration
It is different to ignore, but the application had high demands by operation precision, such as automobile high-speed navigation, higher game is required to motion detection
Which is then affected to apply.
Therefore, prior art has yet to be improved and developed.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided a kind of acceleration sensing
Device calibration steps and system, acceleration transducer in mobile terminal is calibrated accordingly according to diverse location information, is solved
The technical problem that the acceleration of acceleration transducer detection has differences in diverse location in prior art.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of acceleration transducer calibration steps, wherein, methods described includes：
Step A, the positional information for obtaining mobile terminal simultaneously calculate its position knots modification；
Step B, the acquisition that calibration parameter is judged whether to according to the relation of position knots modification and predetermined threshold value；
Step C, when read calibration parameter after, acceleration transducer is calibrated according to calibration parameter.
Described acceleration transducer calibration steps, wherein, also included before step A:Set in the terminal
The predetermined threshold value of seated position knots modification.
Described acceleration transducer calibration steps, wherein, step A is specifically included：
A1, the current first position information of mobile terminal is obtained by GPS；
A2, the second place information for calling the last preservation of mobile terminal；
A3, the position knots modification that mobile terminal is calculated by first position information and second place information.
Described acceleration transducer calibration steps, wherein, step B is specifically included：
B1, the position knots modification for calculating and predetermined threshold value are compared；
B2, when position knots modification is more than predetermined threshold value, the calibration parameter for obtaining acceleration transducer is simultaneously stored in parameter module
In；
B3, when position knots modification is less than or equal to predetermined threshold value, then return to step A.
Described acceleration transducer calibration steps, wherein, the calibration parameter of the acceleration transducer is stored in distal end
Server or mobile terminal.
A kind of acceleration transducer calibration system, wherein, the system includes：
Position changes detection module, for obtaining the positional information of mobile terminal and calculating position knots modification；
Calibration parameter acquisition module, judges whether to calibration parameter for the relation according to position knots modification with predetermined threshold value
Obtain；
Calibration module, for, after calibration parameter is obtained, being calibrated to acceleration transducer according to calibration parameter value.
Described acceleration transducer calibration system, wherein, the position changes detection module to be included：
Location information acquiring unit, for obtaining the current first position information of mobile terminal by GPS；
Location lookup unit, for calling the last second place information for preserving of mobile terminal；
Computing unit, for the position knots modification of mobile terminal is calculated by first position information and second place information.
Described acceleration transducer calibration system, wherein, the calibration parameter acquisition module includes：
Comparing unit, for the position for calculating knots modification and predetermined threshold value are compared；
First processing units, for when position knots modification is more than predetermined threshold value, obtaining the calibration parameter of acceleration transducer simultaneously
It is stored in parameter module；
Second processing unit, for when position knots modification is less than or equal to predetermined threshold value, then home position changes detection module.
Described acceleration transducer calibration system, wherein, the system includes：Position memory unit, moves for preserving
The second place information of dynamic terminal.
Described acceleration transducer calibration system, wherein, the system also includes：Time block, for working as timer
Corresponding module is triggered after reaching Preset Time.
A kind of acceleration transducer calibration steps provided by the present invention and system, methods described obtain adding for diverse location
The calibration parameter of velocity sensor, according to obtain mobile terminal diverse location calibration parameter to the acceleration in mobile terminal
Sensor is correspondingly calibrated so that the acceleration that acceleration transducer is detected is more accurate, to meet user for height
The requirement of the motion detection application of precision.
Description of the drawings
Fig. 1 is a kind of flow chart of acceleration transducer calibration steps of the present invention.
Fig. 2 is a kind of structured flowchart of acceleration transducer calibration system of the present invention.
Specific embodiment
To make the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that specific embodiment described herein is only to explain the present invention, and without
It is of the invention in limiting.
In mobile terminal, some required precisions of application to acceleration are higher, and when mobile terminal is in different positions
There is deviation in the acceleration in mobile terminal, therefore, it is necessary to when being in diverse location to the acceleration transducer of mobile terminal
Calibrated accordingly so that the acceleration that the acceleration transducer in the mobile terminal of diverse location is measured does not have deviation.
As shown in figure 1, a kind of flow chart of the acceleration transducer calibration steps for the present invention, methods described includes：
S1, the positional information for obtaining mobile terminal simultaneously calculate its position knots modification；
S2, the acquisition that calibration parameter is judged whether to according to the relation of position knots modification and predetermined threshold value；
S3, when obtain calibration parameter after, acceleration transducer is calibrated according to calibration parameter.
Whether the acceleration transducer of mobile terminal is calibrated, and needs to arrange the standard of a judgement, therefore, in step
Also include before S1：The predetermined threshold value of set location knots modification in the terminal.Predetermined threshold value can be according to user to movement
In terminal, the acceleration precise requirements of acceleration transducer measurement are configured, and the size of predetermined threshold value and accuracy are into anti-
Than：The predetermined threshold value of less position knots modification, when precise requirements are higher, can be set；When precise requirements are relatively low,
The predetermined threshold value of larger position knots modification can be set.
The present invention be directed to acceleration transducer is calibrated in the mobile terminal of diverse location, only when position knots modification
Just need to be calibrated when larger, therefore, the position knots modification that need to be calculated between diverse location is judged, step S1
Specifically include：
Step 11, the current first position information of mobile terminal is obtained by GPS；
The acquisition of positional information is obtained by GPS, and GPS obtains the longitude of mobile terminal present position, latitude.To mobile terminal
Current first position information is not to obtain with the carrying out carved at any time, and the acquisition of positional information is with certain frequency.First
First Preset Time was set in timer, it is preferred that for 100 seconds.When the first Preset Time, triggering operation once, is obtained
Current first position information.The frequency for obtaining positional information is set, it is to avoid continually carry out the acquisition of inoperative position information.
The acquisition of a positional information was carried out every 1 second such as, according to the speed per hour of the vehicles of existing aircraft, train etc., the position of 1 second
The distance that knots modification only has tens meters to hundreds of meter is put, the acceleration of the too near mobile terminal of distance will not produce change substantially, then
The positional information of acquisition is inoperative position information.
Step 12, the second place information for calling the last preservation of mobile terminal；
While acquisition mobile terminal current first position information, to the last second place information for preserving of mobile terminal
It is called.Second place information is stored in position memory unit, and the position memory unit was preserved relative to current time
The first Preset Time before mobile terminal positional information.It is, when the first Preset Time is 120 seconds, it is assumed that present
Time is 15：00：00, then first position information is 15：00：The positional information of the mobile terminal of 00 record, and second confidence
Cease for 14：58：The positional information of the mobile terminal of 00 record.
Step 13, out position knots modification is calculated by first position information and second place information.
The first position information of acquisition and longitude, latitude that second place information is location point, any two points on the earth
Longitude, latitude can calculate at the distance between 2 points, according to the distance between 2 points of calculation of longitude ＆ latitude be prior art herein
Excessive explanation is not done.The distance between calculate 2 points of first position information and second place information, be first position,
The position knots modification of 2 points of the second place.
When it is determined that mobile terminal position knots modification after, determined whether according to the relation of position knots modification and predetermined threshold value
Acceleration transducer in mobile terminal is calibrated, step S2 is specifically included：
Step 21, the position knots modification for calculating and predetermined threshold value are compared；
For example, the predetermined threshold value of setting is 10km, by predetermined threshold value 10km and the longitude through 2 points of the first Preset Time,
The position knots modification that latitude is calculated is compared.
Step 22, when position knots modification be more than predetermined threshold value when, obtain acceleration transducer calibration parameter；
When the position knots modification for calculating is more than predetermined threshold value, the calibration that position changes signal acquisition acceleration transducer is sent
Parameter；And the positional information is stored in position memory unit, the positional information of preservation is the second place of mobile terminal
Information.
The calibration parameter of acceleration transducer can be obtained by two ways, and the mode for obtaining calibration parameter takes
Certainly in the storage mode of acceleration transducer calibration parameter, the corresponding calibration parameter of each geographical location information, position are preserved
Information is one-to-one with calibration parameter.
The calibration parameter of acceleration transducer has two kinds of storage methods：The calibration parameter of the firstth, acceleration transducer is advance
Preserve in the terminal；The calibration parameter of the secondth, acceleration transducer is pre-stored in far-end server.Work as calibration parameter
When being stored in mobile terminal, then can be found by the current first position information of mobile terminal in the terminal corresponding
Calibration parameter；When calibration parameter is stored in far-end server, then can be attached with far-end server by wireless module,
Corresponding calibration parameter is found in far-end server by the current first position information of mobile terminal.Wireless module can be with
It is WIFI, GSM, LTE, WCDMA etc., as long as can complete to carry out signal communication with far-end server.When the calibration of storage
When parameter is more, far-end server is selected to be preserved；When the calibration parameter of storage is less, mobile terminal is selected to be protected
Deposit.
Step 23, when position knots modification is less than or equal to predetermined threshold value, then return to step A.
When position knots modification is less than or equal to predetermined threshold value, it is the difference very little of acceleration in acceleration transducer, can
To ignore.Now, come back for the detection of next cycle.
After the calibration parameter of acceleration transducer is read, needs are carried out to acceleration transducer according to the calibration parameter
The step of calibration, calibration, S3 was specifically included：
The mobile terminal of the acquisition current corresponding calibration parameter of first position information is stored in parameters unit；Calibration module
Calibration parameter is read from parameters unit, and according to the parametric calibration acceleration transducer.
It is to carry out triggering operation every the second Preset Time by second timer that calibration parameter is read from parameters unit.
Preferably, the second Preset Time is 150 seconds.First timer, second timer are individually controlled.It is pre- when being spaced second
If calibration parameter is read during the time, and acceleration transducer is calibrated according to calibration parameter.
Based on a kind of above-mentioned acceleration transducer calibration steps, present invention also offers a kind of acceleration transducer calibration system
System, as shown in Fig. 2 a kind of structured flowchart of the acceleration transducer calibration system for the present invention, the system includes：
Position changes detection module 100, for obtaining the positional information of mobile terminal and calculating position knots modification；Concrete as above institute
State.
Calibration parameter acquisition module 200, judges whether to school for the relation according to position knots modification with predetermined threshold value
The acquisition of quasi- parameter；As detailed above.
Calibration module 300, for, after calibration parameter is obtained, carrying out school to acceleration transducer according to calibration parameter value
Standard, as detailed above.
The system also includes：Presetting module 400, for the predetermined threshold value of set location knots modification.
The position changes detection module 100 and specifically includes：
Location information acquiring unit, for obtaining the current first position information of mobile terminal by GPS；As detailed above.
Location lookup unit, for calling the last second place information for preserving of mobile terminal；As detailed above.
Computing unit, the position for mobile terminal is calculated by first position information and second place information are changed
Amount；As detailed above.
The position changes detection module 100 also to be included：Position memory unit, for preserving the second place of mobile terminal
Information；As detailed above.
The calibration parameter acquisition module 200 includes：
Comparing unit, for the position for calculating knots modification and predetermined threshold value are compared；As detailed above.
First processing units, for when position knots modification is more than predetermined threshold value, obtaining the calibration ginseng of acceleration transducer
Count and be stored in parameter module；As detailed above.
Second processing unit, for when position knots modification is less than or equal to predetermined threshold value, then home position changes detection mould
Block；As detailed above.
The system also includes：Time block 500, for trigger after Preset Time corresponding module when timer reaching.Institute
Stating time block includes：First timer and second timer；After the first timer reaches the first Preset Time, trigger bit
Put whether change detection module test position information changes；After the second timer reaches the second Preset Time, triggering calibration
Module is calibrated to acceleration transducer.
A kind of acceleration transducer calibration steps provided by the present invention and system, methods described obtain adding for diverse location
The calibration parameter of velocity sensor, according to obtain mobile terminal diverse location calibration parameter to the acceleration in mobile terminal
Sensor is correspondingly calibrated so that the acceleration that acceleration transducer is detected is more accurate, to meet user for height
The requirement of the motion detection application of precision.
Certainly, one of ordinary skill in the art will appreciate that all or part of flow process in realizing above-described embodiment method,
Can be by computer program to instruct related hardware（Such as processor, controller etc.）To complete, described program can be stored
In the storage medium of an embodied on computer readable, the program is may include upon execution such as the flow process of above-mentioned each method embodiment.Its
Described in storage medium can be for memory, magnetic disc, CD etc..
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, and for those of ordinary skills, can
To be improved according to the above description or be converted, all these modifications and variations should all belong to the guarantor of claims of the present invention
Shield scope.
Claims (10)
1. a kind of acceleration transducer calibration steps, it is characterised in that methods described includes：
Step A, the positional information for obtaining mobile terminal simultaneously calculate its position knots modification；
Step B, the acquisition that calibration parameter is judged whether to according to the relation of position knots modification and predetermined threshold value；
Step C, when read calibration parameter after, acceleration transducer is calibrated according to calibration parameter.
2. acceleration transducer calibration steps according to claim 1, it is characterised in that also wrapped before step A
Include:The predetermined threshold value of set location knots modification in the terminal.
3. acceleration transducer calibration steps according to claim 1, it is characterised in that step A is specifically included：
A1, the current first position information of mobile terminal is obtained by GPS；
A2, the second place information for calling the last preservation of mobile terminal；
A3, the position knots modification that mobile terminal is calculated by first position information and second place information.
4. acceleration transducer calibration steps according to claim 1, it is characterised in that step B is specifically included：
B1, the position knots modification for calculating and predetermined threshold value are compared；
B2, when position knots modification is more than predetermined threshold value, the calibration parameter for obtaining acceleration transducer is simultaneously stored in parameter module
In；
B3, when position knots modification is less than or equal to predetermined threshold value, then return to step A.
5. acceleration transducer calibration steps according to claim 1, it is characterised in that the school of the acceleration transducer
Quasi- parameter is stored in far-end server or mobile terminal.
6. a kind of acceleration transducer calibration system, it is characterised in that the system includes：
Position changes detection module, for obtaining the positional information of mobile terminal and calculating position knots modification；
Calibration parameter acquisition module, judges whether to calibration parameter for the relation according to position knots modification with predetermined threshold value
Obtain；
Calibration module, for, after calibration parameter is obtained, being calibrated to acceleration transducer according to calibration parameter value.
7. acceleration transducer calibration system according to claim 6, it is characterised in that the position changes detection module
Including：
Location information acquiring unit, for obtaining the current first position information of mobile terminal by GPS；
Location lookup unit, for calling the last second place information for preserving of mobile terminal；
Computing unit, for the position knots modification of mobile terminal is calculated by first position information and second place information.
8. acceleration transducer calibration system according to claim 6, it is characterised in that the calibration parameter acquisition module
Including：
Comparing unit, for the position for calculating knots modification and predetermined threshold value are compared；
First processing units, for when position knots modification is more than predetermined threshold value, obtaining the calibration parameter of acceleration transducer simultaneously
It is stored in parameter module；
Second processing unit, for when position knots modification is less than or equal to predetermined threshold value, then home position changes detection module.
9. acceleration transducer calibration system according to claim 6, it is characterised in that the system includes：Remember position
Recall unit, for preserving the second place information of mobile terminal.
10. acceleration transducer calibration system according to claim 6, it is characterised in that the system also includes：Regularly
Module, for trigger after Preset Time corresponding module when timer reaching.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710039704.3A CN106546769A (en) | 2017-01-19 | 2017-01-19 | A kind of acceleration transducer calibration steps and system |
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| CN201710039704.3A CN106546769A (en) | 2017-01-19 | 2017-01-19 | A kind of acceleration transducer calibration steps and system |
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Cited By (5)
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| CN109246304A (en) * | 2018-09-18 | 2019-01-18 | Oppo（重庆）智能科技有限公司 | mobile terminal, calibration method and related product |
| CN112137623A (en) * | 2019-06-26 | 2020-12-29 | 达尔生技股份有限公司 | Measuring device and measuring method |
| CN114034320A (en) * | 2021-11-23 | 2022-02-11 | 歌尔科技有限公司 | Sound box calibration control method, device, equipment and readable storage medium |
| CN114599581A (en) * | 2019-12-13 | 2022-06-07 | 深圳市大疆创新科技有限公司 | Specifying device, flight object, specifying method, and program |
| CN116424396A (en) * | 2023-05-31 | 2023-07-14 | 兰州交通大学 | Train speed monitoring system |
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| CN109246304A (en) * | 2018-09-18 | 2019-01-18 | Oppo（重庆）智能科技有限公司 | mobile terminal, calibration method and related product |
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| CN116424396B (en) * | 2023-05-31 | 2024-03-08 | 兰州交通大学 | Train speed monitoring system |
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