CN108663696A - Update method, device, storage medium and the mobile terminal of temperature and frequency deviation relationship - Google Patents
Update method, device, storage medium and the mobile terminal of temperature and frequency deviation relationship Download PDFInfo
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- CN108663696A CN108663696A CN201810394435.7A CN201810394435A CN108663696A CN 108663696 A CN108663696 A CN 108663696A CN 201810394435 A CN201810394435 A CN 201810394435A CN 108663696 A CN108663696 A CN 108663696A
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
- G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/02—Details
- H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
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- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
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Abstract
The embodiment of the present application discloses update method, device, storage medium and the mobile terminal of temperature and frequency deviation relationship.This method includes：During the use of mobile terminal, the sample number strong point in preset temperature section is obtained, sample number strong point includes temperature value and frequency deviation corresponding with the temperature value；Corresponding first curved line relation in preset temperature section is formed according to sample data point；Part corresponding with preset temperature section in temperature and frequency deviation relationship in mobile terminal is updated using the first curved line relation, obtains updated temperature and frequency deviation relationship；Wherein, temperature is used to carry out compensation based on temperature to the frequency for corresponding to crystal in mobile terminal with frequency deviation relationship.The application is by using above-mentioned technical proposal, it can be during user uses mobile terminal, the temperature and frequency deviation relationship in certain temperature section are updated, and then temperature-compensating more accurately is carried out to crystal frequency, improves the accuracy of the clock signal of crystal output.
Description
Technical field
The invention relates to the update method of clock technology field more particularly to temperature and frequency deviation relationship, device, deposit
Storage media and mobile terminal.
Background technology
Currently, most mobile terminals are provided with positioning function, many location based services can be provided a user, for
Family brings facility.
The positioning method of mobile terminal includes mainly Global Navigation Satellite System (Global Navigation
Satellite System, GNSS) positioning, network positions and base station location etc..Wherein, GNSS positioning methods have positioning accurate
The advantages that degree is high and need not use mobile data network, wherein global positioning system (Global Positioning
System, GPS) using wide.GPS be it is a kind of can timing and ranging space intersection's vertex navigation system, it can be to
Global Subscriber provides continuous, real-time and high accuracy three-dimensional position, three-dimensional velocity and temporal information, meets user demand.GPS connects
It receives GPS satellite and emits signal, and demodulated, such as include the demodulation to carrier signal and for noise random code, it is final to utilize
Demodulating information carries out location Calculation.Since GPS satellite signal is high-precision standard-frequency signal, in order to fast and accurately
Capture and tracking GPS satellite, the requirement to clock used by GPS chip in mobile terminal with regard to quite high, if using deviation compared with
Big crystal oscillator (abbreviation crystal oscillator or crystal) generates clock used in GPS chip, may increase the capture time of GPS satellite
Even result in the capture failure of GPS satellite.However, high-precision crystal oscillator is restricted by factors such as volume and costs, and it is not suitable for
In mobile terminal, the crystal oscillator of general precision is generally affected by temperature larger, and it is inclined that different degrees of frequency is will produce under different temperatures
Poor (abbreviation frequency deviation) therefore in actual use, is particularly important the estimation and compensation of frequency deviation.
Invention content
The embodiment of the present application provides a kind of update method, device, storage medium and the mobile terminal of temperature and frequency deviation relationship,
Temperature and frequency deviation relationship can be accurately determined.
In a first aspect, the embodiment of the present application provides a kind of update method of temperature and frequency deviation relationship, including：
During the use of mobile terminal, the sample number strong point in preset temperature section, the sample number strong point are obtained
Including temperature value and frequency deviation corresponding with the temperature value；
Corresponding first curved line relation in the preset temperature section is formed according to the sample data point；
Using first curved line relation update temperature in the mobile terminal in frequency deviation relationship with the default temperature
The corresponding part in section is spent, updated temperature and frequency deviation relationship are obtained；Wherein, the temperature is used for frequency deviation relationship to described
The frequency that crystal is corresponded in mobile terminal carries out compensation based on temperature.
Second aspect, the embodiment of the present application provide a kind of updating device of temperature and frequency deviation relationship, including：
Data point acquisition module, for during the use of mobile terminal, obtaining the sample number in preset temperature section
Strong point, the sample number strong point include temperature value and frequency deviation corresponding with the temperature value；
Curved line relation forms module, for forming the preset temperature section corresponding first according to the sample data point
Curved line relation；
Curved line relation update module, for updating the temperature in the mobile terminal and frequency using first curved line relation
Part corresponding with the preset temperature section, obtains updated temperature and frequency deviation relationship in system of Pianguan County；Wherein, the temperature
It is used to carry out compensation based on temperature to the frequency for corresponding to crystal in the mobile terminal with frequency deviation relationship.
The third aspect, the embodiment of the present application provide a kind of computer readable storage medium, are stored thereon with computer journey
Sequence realizes the update method of the temperature and frequency deviation relationship as described in the embodiment of the present application when the program is executed by processor.
Fourth aspect, the embodiment of the present application provide a kind of mobile terminal, including memory, processor and are stored in storage
It can realize on device and when the computer program of processor operation, the processor execute the computer program as the application is real
Apply the update method of the temperature and frequency deviation relationship described in example.
The update scheme of the temperature and frequency deviation relationship that are provided in the embodiment of the present application, during the use of mobile terminal,
The sample number strong point in preset temperature section is obtained, sample number strong point includes temperature value and frequency deviation corresponding with the temperature value,
Corresponding first curved line relation in preset temperature section is formed according to sample data point, mobile terminal is updated using the first curved line relation
In temperature and frequency deviation relationship in part corresponding with preset temperature section, wherein temperature and frequency deviation relationship are used for the shifting
The frequency that crystal is corresponded in dynamic terminal carries out compensation based on temperature.By using above-mentioned technical proposal, can be used in user
During mobile terminal, sample number strong point is obtained, existing temperature and frequency deviation relationship are modified according to sample number strong point
Update so that be more bonded the actual conditions of crystal with frequency deviation relationship for the temperature to crystal frequency progress temperature-compensating, obtain
To updated more accurate temperature and frequency deviation relationship, and then temperature-compensating more accurately is carried out to crystal frequency, improved
The accuracy of the clock signal of crystal output.
Description of the drawings
Fig. 1 is the flow diagram of a kind of temperature and the update method of frequency deviation relationship provided by the embodiments of the present application；
Fig. 2 is a kind of FT relation curves schematic diagram provided by the embodiments of the present application；
Fig. 3 is the flow diagram of another temperature and the update method of frequency deviation relationship provided by the embodiments of the present application；
Fig. 4 is another FT relation curve schematic diagram provided by the embodiments of the present application；
FT relation curve schematic diagrames when Fig. 5 is 2 data points provided by the embodiments of the present application；
FT relation curve schematic diagrames when Fig. 6 is 7 data points provided by the embodiments of the present application；
FT relation curve schematic diagrames when Fig. 7 is 16 data points provided by the embodiments of the present application；
Fig. 8 is the structure diagram of a kind of temperature and the updating device of frequency deviation relationship provided by the embodiments of the present application；
Fig. 9 is a kind of structural schematic diagram of mobile terminal provided by the embodiments of the present application；
Figure 10 is the structural schematic diagram of another mobile terminal provided by the embodiments of the present application.
Specific implementation mode
Further illustrate the technical solution of the application below with reference to the accompanying drawings and specific embodiments.It is appreciated that
It is that specific embodiment described herein is used only for explaining the application, rather than the restriction to the application.It further needs exist for illustrating
, illustrate only for ease of description, in attached drawing and the relevant part of the application rather than entire infrastructure.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing described as flow chart or method.Although each step is described as the processing of sequence, many of which by flow chart
Step can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of each step can be rearranged.When its operation
The processing can be terminated when completion, it is also possible to the additional step being not included in attached drawing.The processing can be with
Corresponding to method, function, regulation, subroutine, subprogram etc..
Fig. 1 is the flow diagram of a kind of temperature and the update method of frequency deviation relationship provided by the embodiments of the present application, the party
Method can be executed by the updating device of temperature and frequency deviation relationship, and wherein the device can generally be collected by software and or hardware realization
At in the terminal.As shown in Figure 1, this method includes：
Step 101, during the use of mobile terminal, obtain the sample number strong point in preset temperature section, the sample
Notebook data point includes temperature value and frequency deviation corresponding with the temperature value.
Illustratively, the mobile terminal in the embodiment of the present application may include mobile phone, tablet computer and media player etc.
Mobile device.
In mobile terminal, perhaps multipart work is required for that clock signal, clock source is depended on generally to be provided by crystal oscillator.With
For MTK platforms (platform based on the mobile terminal product solution that Lian Fake companies provide), it is proposed synchronic clock
(co-clk) design scheme, mainly using one, the crystal with thermistor provides certain frequency (such as 26MHz) clock source
It is given to power management chip (Power Management IC, PMIC), PMIC exports four railway digitals by buffer (Buffer)
Clock is used for other component, and wherein GPS module will be worked based on digital dock all the way therein.Crystal oscillator generally by
Temperature is affected, and different degrees of frequency deviation is will produce under different temperatures, and GPS module is very sensitive to the frequency deviation of clock, GPS
One of emphasis in the corresponding design from co-clk is exactly temperature-compensating.
In general, the frequency deviation of crystal generates corresponding variation with the variation of temperature, this variation is substantially crystal
What physical characteristic determined, frequency deviation (F) functional relation certain with the relationship general satisfaction of temperature (T).In the related technology, usually
A certain number of (F, the T) data (usually more than two, within ten groups) of test, solve above-mentioned function before mobile terminal dispatches from the factory
Unknown number in relationship can obtain temperature and frequency deviation relationship (abbreviation FT relationships), and FT relationships are stored into mobile terminal,
After manufacture, compensation based on temperature can be carried out to crystal using FT relationships, frequency is allowed to miss during the use of mobile terminal
Difference reduces, to ensure the working performance of GPS module.
However, it is found by the inventors that in order to ensure production efficiency, for determining that the data of FT curves are generally less before manufacture,
Obtained FT curves not enough precisely, and since the characteristic of some crystal itself has exception or other reasons, may be in certain
The corresponding practical frequency deviation of some temperature spots of a temperature range can deviate FT curves, and therefore, FT curves in the related technology are not
It is enough accurate, influence the working performance of GPS module.
In the embodiment of the present application, during the use of mobile terminal, the sample number strong point in preset temperature section is obtained, is used
It is automatically updated in FT curves, the accuracy of FT curves can be improved.Wherein, the specific range the application in preset temperature section
Embodiment does not limit, and the modes such as experiment or emulation can be used and determine the part for being susceptible to problem in former FT curves.For example, can
Corresponding a large amount of (F, the T) data (such as being obtained every 1 DEG C primary) of crystal that preset quantity is obtained by experiment, fit and compare
Accurate FT curves the FT curves are compared with using the curve of above-mentioned functional relation, the temperature more by there is deviation
Section is determined as preset temperature section.Further, it is also possible to be determined using the temperature of the actual environment of mobile terminal in conjunction with user
Preset temperature section, for example, occur the more temperature range of deviation appear in 25 DEG C to 45 DEG C between and 55 DEG C to 70 DEG C it
Between, then preset temperature section can be determined as by 25 DEG C to 45 DEG C, because user will not generally use movement at 55 DEG C to 70 DEG C
Terminal, it is possible to ignore, to reduce operand.
In the embodiment of the present application, the source at sample number strong point can be the current frequency offset for the crystal that can accurately determine and work as
The mode of preceding residing temperature.For example, GPS satellite signal is high-precision standard-frequency signal, when mobile terminal location success,
Current frequency offset can be determined using the GPS satellite signal got.Specifically, obtaining the sample data in preset temperature section
Point, it may include：Detect that the mobile terminal in preset temperature section, is positioned to by satellite positioning module
Work(；It obtains current temperature value and current frequency offset is determined according to the clock information of position location satellite, obtain current sample number strong point.Its
In, the acquisition for temperature value may be used the temperature sensor built in mobile terminal and measure.In the embodiment of the present application,
Weighing mobile terminal, whether the mode in preset temperature section is not limited to accurately be measured by temperature sensor, also
Other modes can be based on, such as obtains Weather information mode and determines rough temperature value, judge whether it is in preset temperature
In section, if being in, after positioning successfully, accurate temperature value is obtained using temperature sensor, the benefit being arranged in this way exists
In reducing the operating time of temperature sensor, save power consumption.
In the embodiment of the present application, opportunity, frequency or the quantity for obtaining sample number strong point are not limited, it can be according to actual conditions
It is configured.
Step 102 forms corresponding first curved line relation in the preset temperature section according to the sample data point.
In the embodiment of the present application, preset temperature section pair is formed using the sample number strong point during mobile terminal use
The first curved line relation answered so that the relation curve is more bonded the current actual performance of crystal.In the embodiment of the present application, to shape
It is not limited at the opportunity of the first curved line relation.For example, when can get new sample number strong point every time, just formed one time the
One curved line relation；For example, also can when sample number strong point that this period gets is accumulated to predetermined quantity (such as 3,10 or
More), the first curved line relation is formed according to the sample data of predetermined quantity point.In addition, when forming the first curved line relation, may be used also
The test data point etc. obtained before the sample number strong point, historical sample data point and the manufacture that are obtained in conjunction with this period, formation the
One curved line relation, the embodiment of the present application also do not limit.
Step 103, using first curved line relation update in temperature and frequency deviation relationship in the mobile terminal with institute
The corresponding part in preset temperature section is stated, updated temperature and frequency deviation relationship are obtained.
Wherein, the temperature is used to carry out the frequency for corresponding to crystal in the mobile terminal with frequency deviation relationship (FT relationships)
Compensation based on temperature.
In the embodiment of the present application, since the first curved line relation is got during mobile terminal use, compared to
Temperature originally is more bonded the current performance state of crystal with for frequency deviation relationship, will be in original FT curves and default warm
It is above-mentioned first curved line relation to spend the corresponding partial replacement in section, and obtained updated FT curves are more accurate, so as to
It is enough that more accurately the working frequency of crystal is compensated according to Current Temperatures.
The update method of the temperature and frequency deviation relationship that are provided in the embodiment of the present application, during the use of mobile terminal,
The sample number strong point in preset temperature section is obtained, sample number strong point includes temperature value and frequency deviation corresponding with the temperature value,
Corresponding first curved line relation in preset temperature section is formed according to sample data point, mobile terminal is updated using the first curved line relation
In temperature and frequency deviation relationship in part corresponding with preset temperature section, wherein temperature and frequency deviation relationship are used for the shifting
The frequency that crystal is corresponded in dynamic terminal carries out compensation based on temperature.By using above-mentioned technical proposal, can be used in user
During mobile terminal, sample number strong point is obtained, existing temperature and frequency deviation relationship are modified according to sample number strong point
Update so that be more bonded the actual conditions of crystal with frequency deviation relationship for the temperature to crystal frequency progress temperature-compensating, obtain
To updated more accurate temperature and frequency deviation relationship, and then temperature-compensating more accurately is carried out to crystal frequency, improved
The accuracy of the clock signal of crystal output.
In some embodiments, described that corresponding first song in the preset temperature section is formed according to the sample data point
Line relationship, including：The institute in the number of endpoint strong point in the sample number strong point and the preset temperature section is connected in a predefined manner
There are consecutive points, to form corresponding first curved line relation in the preset temperature section.Illustratively, the endpoint in preset temperature section
Data point can be obtained before manufacture by testing, and in order to ensure the continuity of curved line relation, need to use process in mobile terminal
Certain temperature frequency correspondence is formed between the sample number strong point and number of endpoint strong point of middle acquisition.Assuming that only getting at this time
One sample number strong point (first sample point), then left side end-point data point (left side end-point data point can be connected in a predefined manner
Corresponding temperature is less than the corresponding temperature of right side end-point data point) and first sample point, then first sample is connected in a predefined manner
Point and right side end-point data point；Assuming that only get at this time two sample number strong points (first sample point and the second sample point, first
The corresponding temperature of sample point is less than the corresponding temperature of the second sample point), then left side end-point data point can be connected in a predefined manner
With first sample point, first sample point and the second sample point are connected in a predefined manner, then connect the second sample point in a predefined manner
With right side end-point data point；And so on.Illustratively, the predetermined way can be straight line connection type, i.e., adjacent two
A point meets linear relationship, the advantages of this arrangement are as follows algorithm is simple, renewal speed is fast；Further, it is also possible to be to meet other
The connection type of functional relation, the embodiment of the present application do not limit, such as are attached using spline curve fitting mode, in this way
So that curve is more smooth, it is more bonded the actual characteristic of crystal.
In some embodiments, described that corresponding first song in the preset temperature section is formed according to the sample data point
Line relationship, including：Whenever getting new sample number strong point, with the predetermined way connect the new sample number strong point and
The data point adjacent with the new sample number strong point in current first curved line relation is closed with updating current first curve
System.The advantages of this arrangement are as follows carrying out curved line relation only for the sample number strong point newly obtained and data point adjacent thereto
Update reduce operand without regenerating entire first curved line relation, renewal speed can be improved.It is understood that
In current first curved line relation there are two the data points adjacent with the new sample number strong point, an each side (left side
Consecutive points and right side consecutive points), the new sample number strong point and current first curved line relation are being connected with the predetermined way
In adjacent with the new sample number strong point data point while or before, can remove left side consecutive points and right side consecutive points it
Between line relationship, after new sample number strong point is added, connection left side consecutive points and new sample number strong point in a predefined manner,
And new sample number strong point and right side consecutive points are connected in a predefined manner.
In some embodiments, the preset temperature section is divided into the temperature subinterval of preset quantity；Whenever acquisition
When to new sample number strong point, judge to whether there is historical sample number in the temperature subinterval belonging to the new sample number strong point
Strong point, and if it exists, the historical sample data point is then replaced using the new sample number strong point；It is connected with the predetermined way
The data point adjacent with the new sample number strong point in the new sample number strong point and current first curved line relation, with update
Current first curved line relation.The advantages of this arrangement are as follows algorithm can be simplified, got when some temperature subinterval
When sample number strong point is more, need the number for repeating line more, but the influence to FT curves may be very small, therefore, can lead to
The range for crossing rationally setting temperature subinterval reduces operand by the way of data replacement.Illustratively, each temperature sub-district
Between length be 0.5 DEG C, it is assumed that preset temperature section be 25 DEG C to 45 DEG C, then 40 subintervals, each sub-district can be divided into
Between only retain a newest sample number strong point.
In some embodiments, described that corresponding first song in the preset temperature section is formed according to the sample data point
Line relationship, including：Judge whether the sample number strong point obtained has reached preset quantity threshold value, if reaching, according to the sample
Notebook data point forms corresponding first curved line relation in the preset temperature section.The advantages of this arrangement are as follows when user uses
When sample number strong point amount in the process is fewer, if forming the first curved line relation, which might have more key
The missing of data point, causing the curved line relation possible, there is no the initial temperature being arranged when mobile terminal manufacture and frequency deviation relationship are accurate
Really, therefore, the first curved line relation can not formed temporarily, to be not updated to initial temperature and frequency deviation relationship temporarily, from
Ensure the accuracy of FT curves on the whole.
In some embodiments, after obtaining updated temperature and frequency deviation relationship, further include：It is asked receiving positioning
After asking, compensation based on temperature is carried out to the frequency for corresponding to crystal in mobile terminal with frequency deviation relationship using updated temperature,
And positioning relevant operation is carried out based on the frequency after compensation.Specifically, current temperature value is obtained, using updated temperature and frequency
System of Pianguan County determines corresponding with current temperature value frequency deviation, based on it is identified to corresponded in mobile terminal the frequency of crystal into
Row compensation, and positioning relevant operation is carried out based on the frequency after compensation.
In some embodiments, the initial temperature in the mobile terminal includes being based on preset function mould with frequency deviation relationship
The second curved line relation that type obtains.In general, obtaining the using test data and preset function model before mobile terminal manufacture
Two curved line relations, and store in the terminal, for mobile terminal dispatch from the factory after using process at based on the second curved line relation into
Line frequency offset compensation.
Illustratively, the corresponding relation formula of preset function model is as follows：
F=C3(T-t0)3+C2(T-t0)2+C1(T-t0)+C0
Wherein, t0=25 DEG C (fixed values), C3And C2For constant.Fig. 2 is that a kind of FT relationships provided by the embodiments of the present application are bent
Line schematic diagram, C1For the slope in crystal property curve linear area, C0The frequency deviation for being crystal at 25 degree, will obtain this curve, and one
As for, as long as two unknown number C can be solved by testing out (F, T) data more than two1And C0, to calculate FT's
Relationship.For co-clk conceptual designs, Linear Quasi is generally passed through by the numerical value of production line test several groups (F, T) in the related technology
It closes, finds out one group of most suitable C1And C0Value, then determine FT relationships.
Inventor has found, when producing line does co-clk calibration tests, has got some bad mainboards, by analyzing not
The temperature characterisitic of the crystal of good mainboard causes its in certain temperature spots right there are some crystal since the characteristic of itself has exception
The figure of FT is answered to have exception.Fig. 4 is another FT relation curve schematic diagram provided by the embodiments of the present application, as shown, the figure
It is from -40 to 86 DEG C of crystal, per the curve that a F T data obtain once is tested, from the point of view of test result, which exists
27 to 30 DEG C of regions, FT relation curves are jagged, are irregular, that is, be unsatisfactory for the specific FT curves of crystal (i.e. not
Meet above-mentioned preset function model), so if temperature when calibration is just fallen in abnormal temperature section, it may result in co-
Clk calibrations are gone wrong.Specifically, crystal producer generally requires C1Range be -0.2 to -0.4, but above-mentioned abnormal master
Plate, C1The value of calibration out is likely to be positive number, therefore production line test will appear failure.In addition, also a kind of situation is exactly such as
For the FT curves of the crystal of fruit mainboard there are problem, such as 26 to 28 DEG C of sections are jagged, but when producing line is calibrated mainboard temperature
Degree is 30 to 32 DEG C, this block mainboard, which can be calibrated, to be passed through, and producing line can not intercept.Mobile terminal using this mainboard exists
When carrying out GPS positioning, just at 26 to 28 degrees Celsius, that may result in GPS positioning and larger deviation occurs mainboard temperature, and
It is unstable.
Fig. 3 is the flow diagram of another temperature and the update method of frequency deviation relationship provided by the embodiments of the present application, should
Method includes the following steps：
Step 301 detects that mobile terminal is positioned successfully by satellite positioning module.
Illustratively, satellite positioning module is GPS module.
Illustratively, preset temperature section can be 25 to 45 DEG C.Endpoint can have been tested in advance before mobile terminal manufacture
The corresponding frequency deviation of temperature (25 DEG C and 45 DEG C), as number of endpoint strong point.It is counted in addition, can also be based on the two number of endpoint strong points
Calculate C1And C0Value, be then based on above-mentioned preset function model and determine original FT relation curves.It, can for preset temperature section
Retaining corresponding part in original FT relation curves, i.e., initial temperature is consistent with original FT relation curves with frequency deviation relationship, this
Sample setting is advantageous in that, in sample data point negligible amounts, can also ensure that temperature and frequency deviation relationship are substantially accurate；Also may be used
The part removal in preset temperature section will be corresponded in original FT relation curves, two are connected using predetermined manner (such as straight line connection)
Number of endpoint strong point obtains initial temperature and frequency deviation relationship, the advantages of this arrangement are as follows, first sample number can obtained
Behind strong point, that is, predetermined manner is used to generate updated temperature and frequency deviation relationship.In addition, can also be recorded before manufacture a small amount of pre-
It, can be according to test data point in the case of calibration efficiency before not influencing manufacture excessively if the test data point of temperature range
The first curved line relation initial in the application is obtained using predetermined manner, make up sample number strong point causes early period because of lazy weight
The not accurate enough problem of curved line relation.
Step 302 obtains current temperature value, judges whether current temperature value is in preset temperature section, if so, executing
Step 303；Otherwise, terminate flow.
Step 303 determines current frequency offset according to the clock information of position location satellite, obtains current sample number strong point.
In the embodiment of the present application, after obtaining current sample number strong point, the sample number strong point obtained and manufacture can determine whether
Whether the data point of corresponding current temperature value is included in the test data point of preceding record, and if it exists, then uses current sample data
Point replaces already present data point, then carries out in next step；If being not present, it is normally carried out in next step.
Step 304, connect in a predefined manner in current sample number strong point and current first curved line relation with the current sample
Two adjacent data points of notebook data point, to update current first curved line relation.
Illustratively, predetermined way is linear fashion.
Step 305, using first curved line relation update in temperature and frequency deviation relationship in the mobile terminal with institute
The corresponding part in preset temperature section is stated, updated temperature and frequency deviation relationship are obtained.
Step 306, after receiving Location Request, using updated temperature with frequency deviation relationship to corresponding in mobile terminal
The frequency of crystal carries out compensation based on temperature, and carries out positioning relevant operation based on the frequency after compensation.
Illustratively, it after carrying out positioning relevant operation, is positioned successfully if detecting, can return to and execute step step 302.
Time interval due to initiating Location Request twice may be longer, and the temperature of mobile terminal local environment may change, because
This needs to rejudge temperature whether in preset temperature range after detecting and positioning successfully.
The update method of temperature provided by the embodiments of the present application and frequency deviation relationship all can after obtaining sample number strong point every time
Temperature and frequency deviation relationship are updated, and curve is carried out only for the sample number strong point newly obtained and data point adjacent thereto
The update of relationship reduces operand, renewal speed can be improved without regenerating entire first curved line relation.In update temperature
After degree and frequency deviation relationship, when being connected to Location Request, frequency deviation compensation is carried out using new temperature and frequency deviation relationship, ensures positioning mould
The positioning performance of block.In addition, this method needs user to be configured or operate, mobile terminal can collect related data automatically and go forward side by side
The corresponding optimization of row so that the positioning function of mobile terminal is more and more accurate and quick.
Technical solution provided by the embodiments of the present application is further illustrated with regard to specific experimentation and data below.
Compared to preset function model in the related technology, the embodiment of the present application is in preset temperature section (with 25 to 45 DEG C
For) in increased a kind of mathematical model of FT newly, and remaining temperature range still can use preset function model to form FT relationships.25
It is divided into N segments (1≤N≤40), the N=1 when sample number strong point has not been obtained, with the continuous increasing at sample number strong point to 45 DEG C
Add, the value of N constantly becomes larger, and establishes multi-stage model, i.e., a piecewise function is corresponded to per segment, for convenience of explanation, herein
By taking piecewise function meets linear relationship as an example.After the mobile terminal location success of user, using the clock information of GPS satellite,
(F, T) data are recorded, (F, T) data during 25 to 45 DEG C of early period have M (1≤M≤N) a temperature spot, that is, obtain first sample
When notebook data point, M=1, with being continuously increased for sample number strong point, the value of M constantly becomes larger, and section is divided into M+1 by M temperature spot
A minizone.Just starting since (F, T) data point of record is few, function model is relatively coarse, but with using GPS's
Time increases, and the data of FT curves can be more and more complete, and last FT curves just tend to reach perfection, so as to improve GPS positioning precision and
Speed, this process are can to regard a process for constantly learning continuous self-perfection as.
For example, the crystal FT curves of a mainboard are abnormal at 31 to 33 DEG C, by using the embodiment of the present application
Scheme, the process of self-teaching is as follows：
Just start, when only recording 2 (F, T) data, data such as following table
(F, T) data when table 1M=2
Wherein, 25 DEG C and 45 DEG C of corresponding frequency deviations are obtained by being tested before dispatching from the factory, 2 (F, T) data refer to (- 10,35) and (-
10.6,37).FT relation curve schematic diagrames when Fig. 5 is 2 data points provided by the embodiments of the present application, wherein 25 DEG C to 45 DEG C
Except the corresponding curved portion of temperature range be not shown.As shown in figure 5, the FT relation curves in the section are substantially close to straight line.
After (F, T) data record 7, data such as following table
(F, T) data when table 2M=7
FT relation curve schematic diagrames when Fig. 6 is 7 data points provided by the embodiments of the present application, as shown in fig. 6, the section
FT relation curves there is irregular peak value.
After (F, T) data record 16, data such as following table
(F, T) data when table 3M=16
FT relation curve schematic diagrames when Fig. 7 is 16 data points provided by the embodiments of the present application, as shown in fig. 7, the area
Between FT relation curves be more nearly the practical FT relationships of crystal.Therefore, continuous self to learn by constantly recording data
It practises, FT curves can become closer to the FT curves of crystal itself substantially, and the frequency deviation of such GPS positioning will be smaller, from
And improve the precision and stability of positioning.In addition, the scheme of the embodiment of the present application, moreover it is possible to allow some originally problematic crystal into
Row is corrected, it is carried out second-order correction in the problematic F T curves of certain temperature ranges, so as to improve positioning accuracy.To sum up institute
It states, the program can significantly improve the relevant user experiences of GPS.
Fig. 8 is the structure diagram of a kind of temperature and the updating device of frequency deviation relationship provided by the embodiments of the present application, the device
It can be typically integrated in mobile terminal by software and or hardware realization, the update method of execution temperature and frequency deviation relationship can be passed through
To carry out the update of FT relationships.As shown in figure 8, the device includes：
Data point acquisition module 801, for during the use of mobile terminal, obtaining the sample in preset temperature section
Data point, the sample number strong point include temperature value and frequency deviation corresponding with the temperature value；
Curved line relation forms module 802, corresponding for forming the preset temperature section according to the sample data point
First curved line relation；
Curved line relation update module 803, for updating the temperature in the mobile terminal using first curved line relation
And part corresponding with the preset temperature section, obtains updated temperature and frequency deviation relationship in frequency deviation relationship；Wherein, described
Temperature is used to carry out compensation based on temperature to the frequency for corresponding to crystal in the mobile terminal with frequency deviation relationship.
The updating device of the temperature and frequency deviation relationship that are provided in the embodiment of the present application, during the use of mobile terminal,
The sample number strong point in preset temperature section is obtained, sample number strong point includes temperature value and frequency deviation corresponding with the temperature value,
Corresponding first curved line relation in preset temperature section is formed according to sample data point, mobile terminal is updated using the first curved line relation
In temperature and frequency deviation relationship in part corresponding with preset temperature section, wherein temperature and frequency deviation relationship are used for the shifting
The frequency that crystal is corresponded in dynamic terminal carries out compensation based on temperature.By using above-mentioned technical proposal, can be used in user
During mobile terminal, sample number strong point is obtained, existing temperature and frequency deviation relationship are modified according to sample number strong point
Update so that be more bonded the actual conditions of crystal with frequency deviation relationship for the temperature to crystal frequency progress temperature-compensating, obtain
To updated more accurate temperature and frequency deviation relationship, and then temperature-compensating more accurately is carried out to crystal frequency, improved
The accuracy of the clock signal of crystal output.
Optionally, the sample number strong point obtained in preset temperature section, including：
Detect that the mobile terminal in preset temperature section, is positioned to by satellite positioning module
Work(；
It obtains current temperature value and current frequency offset is determined according to the clock information of position location satellite, obtain current sample data
Point.
It is optionally, described that corresponding first curved line relation in the preset temperature section is formed according to the sample data point,
Including：
All phases in the number of endpoint strong point in the sample number strong point and the preset temperature section are connected in a predefined manner
Adjoint point, to form corresponding first curved line relation in the preset temperature section.
Optionally, the predetermined way includes straight line connection type or spline curve fitting mode.
Optionally, the curved line relation forms module and is additionally operable to：Whenever getting new sample number strong point, with described pre-
Determine mode and connects number adjacent with the new sample number strong point in the new sample number strong point and current first curved line relation
Strong point, to update current first curved line relation.
Optionally, the preset temperature section is divided into the temperature subinterval of preset quantity；
The curved line relation forms module and is additionally operable to：Whenever getting new sample number strong point, the new sample is judged
It whether there is historical sample data point in temperature subinterval belonging to notebook data point, and if it exists, then use the new sample number
Replace the historical sample data point in strong point；
With the predetermined way connect in the new sample number strong point and current first curved line relation with the new sample
The adjacent data point of notebook data point, to update current first curved line relation.
It is optionally, described that corresponding first curved line relation in the preset temperature section is formed according to the sample data point,
Including：
Judge whether the sample number strong point obtained has reached preset quantity threshold value, if reaching, according to the sample number
Strong point forms corresponding first curved line relation in the preset temperature section.
Optionally, the initial temperature in the mobile terminal and frequency deviation relationship include being obtained based on preset function model
Second curved line relation.
The embodiment of the present application also provides a kind of storage medium including computer executable instructions, and the computer is executable
Update method of the instruction when being executed by computer processor for executing temperature and frequency deviation relationship, this method include：
During the use of mobile terminal, the sample number strong point in preset temperature section, the sample number strong point are obtained
Including temperature value and frequency deviation corresponding with the temperature value；
Corresponding first curved line relation in the preset temperature section is formed according to the sample data point；
Using first curved line relation update temperature in the mobile terminal in frequency deviation relationship with the default temperature
The corresponding part in section is spent, updated temperature and frequency deviation relationship are obtained；Wherein, the temperature is used for frequency deviation relationship to described
The frequency that crystal is corresponded in mobile terminal carries out compensation based on temperature.
Storage medium --- any various types of memory devices or storage device.Term " storage medium " is intended to wrap
It includes：Install medium, such as CD-ROM, floppy disk or magnetic tape equipment；Computer system memory or random access memory, such as
DRAM, DDRRAM, SRAM, EDORAM, blue Bath (Rambus) RAM etc.；Nonvolatile memory, such as flash memory, magnetic medium (example
Such as hard disk or optical storage)；The memory component etc. of register or other similar types.Storage medium can further include other types
Memory or combinations thereof.In addition, storage medium can be located at program in the first computer system being wherein performed, or
It can be located in different second computer systems, second computer system is connected to the first meter by network (such as internet)
Calculation machine system.Second computer system can provide program instruction to the first computer for executing.Term " storage medium " can
To include two or more that may reside in different location (such as in different computer systems by network connection)
Storage medium.Storage medium can store the program instruction that can be executed by one or more processors and (such as be implemented as counting
Calculation machine program).
Certainly, a kind of storage medium including computer executable instructions that the embodiment of the present application is provided, computer
The update of the temperature that executable instruction is not limited to the described above and frequency deviation relationship operates, and the application any embodiment can also be performed
The temperature provided and the relevant operation in the update method of frequency deviation relationship.
The embodiment of the present application provides a kind of mobile terminal, and temperature provided by the embodiments of the present application can be integrated in the mobile terminal
The updating device of degree and frequency deviation relationship.Fig. 9 is a kind of structural schematic diagram of mobile terminal provided by the embodiments of the present application.It is mobile whole
End 900 may include：Memory 901, processor 902 and is stored in the calculating that can be run on memory 901 and in processor 902
Machine program, the processor 902 realize that the temperature as described in the embodiment of the present application is closed with frequency deviation when executing the computer program
The update method of system.
Mobile terminal provided by the embodiments of the present application can obtain sample number during user uses mobile terminal
Strong point is modified update so that for being carried out to crystal frequency according to sample number strong point to existing temperature and frequency deviation relationship
The temperature of temperature-compensating is more bonded the actual conditions of crystal with frequency deviation relationship, obtains updated more accurate temperature and frequency
System of Pianguan County, and then temperature-compensating more accurately is carried out to crystal frequency, improve the accuracy of the clock signal of crystal output.
Figure 10 is the structural schematic diagram of another mobile terminal provided by the embodiments of the present application, which can wrap
It includes：Shell (not shown), memory 1001, central processing unit (central processing unit, CPU) 1002 are (again
Claim processor, hereinafter referred to as CPU), circuit board (not shown) and power circuit (not shown).The circuit board placement
In the space interior that the shell surrounds；The CPU1002 and the memory 1001 are arranged on the circuit board；The electricity
Source circuit, for being each circuit or the device power supply of the mobile terminal；The memory 1001, for storing executable journey
Sequence code；The CPU1002 by read the executable program code stored in the memory 1001 run with it is described can
The corresponding computer program of program code is executed, to realize following steps：
During the use of mobile terminal, the sample number strong point in preset temperature section, the sample number strong point are obtained
Including temperature value and frequency deviation corresponding with the temperature value；
Corresponding first curved line relation in the preset temperature section is formed according to the sample data point；
Using first curved line relation update temperature in the mobile terminal in frequency deviation relationship with the default temperature
The corresponding part in section is spent, updated temperature and frequency deviation relationship are obtained；Wherein, the temperature is used for frequency deviation relationship to described
The frequency that crystal is corresponded in mobile terminal carries out compensation based on temperature.
The mobile terminal further includes：Peripheral Interface 1003, RF (Radio Frequency, radio frequency) circuit 1005, audio
Circuit 1006, loud speaker 1011, power management chip 1008, input/output (I/O) subsystem 1009, other input/controls are set
Standby 1010, touch screen 1012, other input/control devicess 1010 and outside port 1004, these components pass through one or more
A communication bus or signal wire 1007 communicate.
It should be understood that diagram mobile terminal 1000 is only an example of mobile terminal, and mobile terminal
1000 can have than shown in the drawings more or less component, can combine two or more components, or
There can be different components to configure.Various parts shown in the drawings can including one or more signal processings and/or
It is realized in the combination of hardware, software or hardware and software including application-specific integrated circuit.
Just the mobile terminal provided in this embodiment for updating temperature and frequency deviation relationship is described in detail below, should
Mobile terminal is by taking mobile phone as an example.
Memory 1001, the memory 1001 can be by the access such as CPU1002, Peripheral Interface 1003, the memories
1001 may include high-speed random access memory, can also be deposited including nonvolatile memory, such as one or more disks
Memory device, flush memory device or other volatile solid-state parts.
The peripheral hardware that outputs and inputs of equipment can be connected to CPU1002 by Peripheral Interface 1003, the Peripheral Interface 1003
With memory 1001.
I/O subsystems 1009, the I/O subsystems 1009 can be by the input/output peripherals in equipment, such as touch screen
1012 and other input/control devicess 1010, it is connected to Peripheral Interface 1003.I/O subsystems 1009 may include display control
Device 10091 and one or more input controllers 10092 for controlling other input/control devicess 1010.Wherein, one or
Multiple input controller 10092 from other input/control devicess 1010 receives electric signal or to other input/control devices
1010 send electric signal, other input/control devicess 1010 may include physical button (pressing button, rocker buttons etc.), dial
Dialer, control stick, clicks idler wheel at slide switch.It is worth noting that input controller 10092 can be with any one following company
It connects：The indicating equipment of keyboard, infrared port, USB interface and such as mouse.
Touch screen 1012, the touch screen 1012 are that input interface between customer mobile terminal and user and output connect
Mouthful, visual output is shown to user, visual output may include figure, text, icon, video etc..
Display controller 10091 in I/O subsystems 1009 from touch screen 1012 receives electric signal or to touch screen
1012 send electric signal.Touch screen 1012 detects the contact on touch screen, and display controller 10091 converts the contact detected
It for the interaction with the user interface object being shown on touch screen 1012, that is, realizes human-computer interaction, is shown on touch screen 1012
User interface object can be the icon of running game, be networked to the icon etc. of corresponding network.It is worth noting that equipment is also
May include light mouse, light mouse is the touch sensitivity for not showing the touch sensitive surface visually exported, or formed by touch screen
The extension on surface.
RF circuits 1005 are mainly used for establishing the communication of mobile phone and wireless network (i.e. network side), realize mobile phone with it is wireless
The data receiver of network and transmission.Such as transmitting-receiving short message, Email etc..Specifically, RF circuits 1005 receive and send RF
Signal, RF signals are also referred to as electromagnetic signal, and RF circuits 1005 convert electrical signals to electromagnetic signal or are converted to electromagnetic signal
Electric signal, and communicated with communication network and other equipment by the electromagnetic signal.RF circuits 1005 may include using
In the known circuit for executing these functions comprising but be not limited to antenna system, RF transceivers, one or more amplifiers, adjust
Humorous device, one or more oscillators, digital signal processor, CODEC (COder-DECoder, coder) chipset, user
Mark module (Subscriber Identity Module, SIM) etc..
Voicefrequency circuit 1006 is mainly used for receiving audio data from Peripheral Interface 1003, which is converted to electricity
Signal, and the electric signal is sent to loud speaker 1011.
Loud speaker 1011, the voice signal for receiving mobile phone from wireless network by RF circuits 1005, is reduced to sound
Sound simultaneously plays the sound to user.
Power management chip 1008, the hardware for being connected by CPU1002, I/O subsystem and Peripheral Interface are supplied
Electricity and power management.
The updating device, storage medium and mobile terminal of the temperature provided in above-described embodiment and frequency deviation relationship are executable originally
The update method of temperature and frequency deviation relationship that application any embodiment is provided, have execute the corresponding function module of this method with
Advantageous effect.The not technical detail of detailed description in the above-described embodiments, reference can be made to the temperature that the application any embodiment is provided
The update method of degree and frequency deviation relationship.
Note that above are only preferred embodiment and the institute's application technology principle of the application.It will be appreciated by those skilled in the art that
The application is not limited to specific embodiment described here, can carry out for a person skilled in the art it is various it is apparent variation,
The protection domain readjusted and substituted without departing from the application.Therefore, although being carried out to the application by above example
It is described in further detail, but the application is not limited only to above example, in the case where not departing from the application design, also
May include other more equivalent embodiments, and scope of the present application is determined by scope of the appended claims.
Claims (11)
1. the update method of a kind of temperature and frequency deviation relationship, which is characterized in that including：
During the use of mobile terminal, the sample number strong point in preset temperature section is obtained, the sample number strong point includes
Temperature value and frequency deviation corresponding with the temperature value；
Corresponding first curved line relation in the preset temperature section is formed according to the sample data point；
Using first curved line relation update temperature in the mobile terminal in frequency deviation relationship with the preset temperature area
Between corresponding part, obtain updated temperature and frequency deviation relationship；Wherein, the temperature is used for frequency deviation relationship to the movement
The frequency that crystal is corresponded in terminal carries out compensation based on temperature.
2. according to the method described in claim 1, it is characterized in that, the sample number strong point obtained in preset temperature section,
Including：
Detect that the mobile terminal in preset temperature section, is positioned successfully by satellite positioning module；
It obtains current temperature value and current frequency offset is determined according to the clock information of position location satellite, obtain current sample number strong point.
3. according to the method described in claim 1, it is characterized in that, described form the default temperature according to the sample data point
Corresponding first curved line relation in section is spent, including：
All consecutive points in the number of endpoint strong point in the sample number strong point and the preset temperature section are connected in a predefined manner,
To form corresponding first curved line relation in the preset temperature section.
4. according to the method described in claim 3, it is characterized in that, the predetermined way includes that straight line connection type or batten are bent
Line fit approach.
5. according to the method described in claim 3, it is characterized in that, described form the default temperature according to the sample data point
Corresponding first curved line relation in section is spent, including：Whenever getting new sample number strong point, institute is connected with the predetermined way
Data point adjacent with the new sample number strong point in new sample number strong point and current first curved line relation is stated, to update
State current first curved line relation.
6. according to the method described in claim 5, it is characterized in that, the preset temperature section is divided into the temperature of preset quantity
Spend subinterval；
It is described with the predetermined way connect in the new sample number strong point and current first curved line relation with the new sample
The adjacent data point of notebook data point, to update current first curved line relation, including：
Judge to whether there is historical sample data point in the temperature subinterval belonging to the new sample number strong point, and if it exists, then
The historical sample data point is replaced using the new sample number strong point；
With the predetermined way connect in the new sample number strong point and current first curved line relation with the new sample number
The adjacent data point in strong point, to update current first curved line relation.
7. according to the method described in claim 1, it is characterized in that, described form the default temperature according to the sample data point
Corresponding first curved line relation in section is spent, including：
Judge whether the sample number strong point obtained has reached preset quantity threshold value, if reaching, according to the sample number strong point
Form corresponding first curved line relation in the preset temperature section.
8. according to the method described in claim 1, it is characterized in that, the initial temperature in the mobile terminal and frequency deviation relationship
It include the second curved line relation obtained based on preset function model.
9. the updating device of a kind of temperature and frequency deviation relationship, which is characterized in that including：
Data point acquisition module, for during the use of mobile terminal, obtaining the sample number strong point in preset temperature section,
The sample number strong point includes temperature value and frequency deviation corresponding with the temperature value；
Curved line relation forms module, for forming corresponding first curve in the preset temperature section according to the sample data point
Relationship；
Curved line relation update module is closed for being updated the temperature in the mobile terminal using first curved line relation with frequency deviation
Part corresponding with the preset temperature section, obtains updated temperature and frequency deviation relationship in system；Wherein, the temperature and frequency
System of Pianguan County is used to carry out compensation based on temperature to the frequency for corresponding to crystal in the mobile terminal.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The update method such as temperature according to any one of claims 1-8 and frequency deviation relationship is realized when execution.
11. a kind of mobile terminal, which is characterized in that including memory, processor and storage are on a memory and can be in processor
The computer program of operation, the processor realize the temperature as described in claim 1-8 is any when executing the computer program
The update method of degree and frequency deviation relationship.
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