CN107544857A - The control method and intelligent terminal of sensor in intelligent terminal - Google Patents
The control method and intelligent terminal of sensor in intelligent terminal Download PDFInfo
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Abstract
The embodiments of the invention provide a kind of control method of the sensor in intelligent terminal and intelligent terminal.This method includes：Obtain the current demand signal that sensor samples to obtain using the first sample frequency；According to the feature of current demand signal, it is determined that the current activity state of the user using intelligent terminal；Determine the second sample frequency corresponding to current activity state；In the case of the second sample frequency and the first sample frequency difference, control sensor is sampled using the second sample frequency.In the embodiment of the present invention, the current activity state of user is determined by the feature of the current demand signal obtained according to sensor, it is then determined that sample frequency corresponding to the current activity state, in the case of the sample frequency and the currently used sample frequency difference of sensor, the sensor is controlled to be sampled using sample frequency corresponding to the current activity state, the sample frequency that sensor uses can be adjusted according to the active state of user, so as to advantageously reduce the energy expenditure of sensor.
Description
Technical field
The present invention relates to the control method of the sensor in electronic applications, more particularly to intelligent terminal and intelligent terminal.
Background technology
Today's society smart machine has had very high permeability, and the intelligence using smart mobile phone and intelligent watch as representative is set
The sensor of standby middle carrying is enriched constantly, such as acceleration transducer, gravity sensor, direction biography can be carried in smart machine
Sensor etc..Smart machine can go out active state of user etc. according to the signal analysis that the sensor of its carrying detects.
The sensor that smart machine carries is required to consume certain energy, and the battery capacity that smart machine carries has
Limit, the battery life of smart machine will be influenceed by so causing to carry multiple sensors in smart machine.
Therefore, how to reduce sensor energy expenditure turn into be currently needed for solving the problems, such as.
The content of the invention
In view of this, can the invention provides a kind of control method of the sensor in intelligent terminal and intelligent terminal
Advantageously reduce the energy expenditure of the sensor in intelligent terminal.
On the one hand, there is provided a kind of control method of the sensor in intelligent terminal, this method include：
Obtain the current demand signal that sensor samples to obtain using the first sample frequency；
According to the feature of current demand signal, it is determined that the current activity state of the user using intelligent terminal；
Determine the second sample frequency corresponding to current activity state；
In the case of the second sample frequency and the first sample frequency difference, control sensor is entered using the second sample frequency
Row sampling.
Alternatively, according to the feature of current demand signal, it is determined that the current activity state of the user using intelligent terminal, including：
Obtain the first corresponding relation of the feature of signal and the active state of user；
According to first corresponding relation, current activity state corresponding to the feature of current demand signal is determined.
Optionally it is determined that the second sample frequency includes corresponding to current activity state：
A variety of sample frequencys corresponding to current activity state are determined, a variety of sample frequencys include the second sample frequency；
According to energy expenditure and/or accuracy rate corresponding to every kind of sample frequency in a variety of sample frequencys, the second sampling is determined
Frequency, wherein, energy expenditure and/or accuracy rate corresponding to the second sample frequency meet preset requirement, standard corresponding to sample frequency
True rate is the accuracy rate of the active state for the user that the feature for the signal for sampling to obtain using sample frequency according to sensor determines.
Alternatively, the energy expenditure according to corresponding to every kind of sample frequency in a variety of sample frequencys, determines the second sample frequency,
Including：
The minimum sample frequency of energy expenditure is selected from a variety of sample frequencys as the second sample frequency.
Alternatively, the accuracy rate according to corresponding to every kind of sample frequency in a variety of sample frequencys, the second sample frequency is determined, wrapped
Include：
Accuracy rate highest sample frequency is selected from a variety of sample frequencys as the second sample frequency.
Alternatively, energy expenditure and accuracy rate according to corresponding to every kind of sample frequency in a variety of sample frequencys, determine second
Sample frequency, including：
From a variety of sample frequencys select accuracy rate be more than or equal to predetermined threshold value at least one sample frequency, and to
The minimum sample frequency of energy expenditure is selected in a few sample frequency as the second sample frequency.
Alternatively, this method also includes：
In the case of the second sample frequency and the first sample frequency identical, control sensor continues using the first sampling frequency
Rate is sampled.
Alternatively, the feature of current demand signal includes the temporal signatures and/or frequency domain character of current demand signal.
Alternatively, temporal signatures include at least one in peak value, average, variance and covariance, and frequency domain character includes energy
At least one of in amount and entropy.
On the other hand, there is provided a kind of intelligent terminal, the intelligent terminal include：
Acquiring unit, the current demand signal for sampling to obtain using the first sample frequency for obtaining sensor；
Determining unit, for the feature according to current demand signal, it is determined that the current activity state of the user using intelligent terminal,
And determine the second sample frequency corresponding to current activity state；
Control unit, in the case of the second sample frequency and the first sample frequency difference, control sensor to use
Second sample frequency is sampled.
Optionally it is determined that unit is specifically used for：
Obtain the first corresponding relation of the feature of signal and the active state of user；
According to first corresponding relation, current activity state corresponding to the feature of current demand signal is determined.
Optionally it is determined that unit is specifically used for：
A variety of sample frequencys corresponding to current activity state are determined, a variety of sample frequencys include the second sample frequency；
According to energy expenditure and/or accuracy rate corresponding to every kind of sample frequency in a variety of sample frequencys, the second sampling is determined
Frequency, wherein, energy expenditure and/or accuracy rate corresponding to the second sample frequency meet preset requirement, standard corresponding to sample frequency
True rate is the accuracy rate of the active state for the user that the feature for the signal for sampling to obtain using sample frequency according to sensor determines.
Optionally it is determined that unit is specifically used for selecting the minimum sample frequency conduct of energy expenditure from a variety of sample frequencys
Second sample frequency.
Optionally it is determined that unit is specifically used for selecting accuracy rate highest sample frequency to be used as the from a variety of sample frequencys
Two sample frequencys.
Optionally it is determined that unit is specifically used for selecting accuracy rate to be more than or equal to predetermined threshold value from a variety of sample frequencys
At least one sample frequency, and the minimum sample frequency of energy expenditure is selected as the second sampling from least one sample frequency
Frequency.
Alternatively, control unit is additionally operable in the case of the second sample frequency and the first sample frequency identical, and control passes
Sensor continues to be sampled using the first sample frequency.
Alternatively, the feature of current demand signal includes the temporal signatures and/or frequency domain character of current demand signal.
Alternatively, temporal signatures include at least one in peak value, average, variance and covariance, and frequency domain character includes energy
At least one of in amount and entropy.
Based on above-mentioned technical proposal, the control method and intelligence of the sensor in the intelligent terminal of the embodiment of the present invention are whole
End, the current activity state of user is determined by the feature of the current demand signal obtained according to sensor, it is then determined that the current work
Sample frequency corresponding to dynamic state, in this prior sample frequency corresponding to active state and the currently used sample frequency of sensor
In the case of difference, control the sensor to be sampled using sample frequency corresponding to the current activity state, can according to
The sample frequency that the active state adjustment sensor at family uses, so as to advantageously reduce the energy expenditure of sensor.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, it will make below to required in the embodiment of the present invention
Accompanying drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing.
Fig. 1 is the indicative flowchart of the control method of the sensor in intelligent terminal according to embodiments of the present invention.
Fig. 2 is the structural representation of intelligent terminal according to embodiments of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is the part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, all other reality that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example is applied, should all belong to the scope of protection of the invention.
It should be understood that the term " first ", " second " and " the 3rd " in the description and claims of this application and accompanying drawing
Etc. being to be used to distinguish different objects, rather than for describing particular order.
In the embodiment of the present invention, intelligent terminal include but is not limited to mobile phone, notebook computer, tablet personal computer, portable equipment,
Wearable device etc., wherein wearable device include but is not limited to intelligent watch, Intelligent bracelet, intelligent glasses, intelligent head hoop, intelligence
Energy dress ornament etc..
In the embodiment of the present invention, the sensor in intelligent terminal can be for the moving type for the user for monitoring intelligent terminal
The sensor of state, for example, the sensor can be acceleration transducer, gravity sensor or gyroscope etc..
Fig. 1 is the indicative flowchart of the control method of the sensor in intelligent terminal according to embodiments of the present invention.Fig. 1
Shown method can be performed by intelligent terminal.As shown in figure 1, this method includes following content.
110th, the current demand signal that sensor samples to obtain using the first sample frequency is obtained.
120th, according to the feature of current demand signal, it is determined that the current activity state of the user using intelligent terminal.
Alternatively, the feature of current demand signal includes the temporal signatures and/or frequency domain character of current demand signal.Wherein, time domain is special
Sign can include at least one in peak value, average, variance and covariance, and frequency domain character can be included in energy and entropy extremely
One item missing.
The active state of user can be, but not limited to include to stand, walks, runs, sitting quietly, take elevator, sleep, swimming,
Drive etc..
130th, the second sample frequency corresponding to current activity state is determined.
140th, in the case of the second sample frequency and the first sample frequency difference, control sensor is using the second sampling frequency
Rate is sampled.
In the prior art, sensor is sampled using default default sample frequency, the sample frequency will not with
The active state at family and change.In order to meet that sensor is adopted under different active states to the demand of sample frequency, sensor
Default sample frequency is usually the highest sample frequency of sensor.
Because the sample frequency that sensor uses is higher, the energy that it is consumed is higher, therefore sensor is adopted in the prior art
Sampled with default default sample frequency, the energy expenditure that may result in sensor is larger.
In the embodiment of the present invention, the sampling frequency of sensor use can be dynamically adjusted in time according to current activity state
Rate, it can avoid advantageously reducing the energy expenditure of sensor.
Therefore, in the embodiment of the present invention, determine that user's is current by the feature of the current demand signal obtained according to sensor
Active state, it is then determined that sample frequency corresponding to the current activity state, currently used in the sample frequency and sensor
In the case of sample frequency difference, the sensor is controlled to be sampled using sample frequency corresponding to the current activity state, energy
Enough sample frequencys that sensor use is adjusted according to the active state of user, so as to advantageously reduce the energy expenditure of sensor.
Further, since sample frequency is higher, the data volume for sampling to obtain is bigger.Therefore, the embodiment of the present invention passes through basis
The active state of user dynamically adjusts the sample frequency of sensor use, also helps the data volume for reducing collection, Jin Eryou
Beneficial to the memory space for reducing data occupancy.
Alternatively, step 120 can include：
Obtain the first corresponding relation of the feature of signal and the active state of user；
According to first corresponding relation, current activity state corresponding to the feature of current demand signal is determined.
Wherein, first corresponding relation can be prestored in intelligent terminal.For example, the first corresponding relation can be with form
Form storage.
The feature of the signal obtained by analyte sensors, it can determine the active state of user.For example, according to acceleration
The temporal signatures of the signal of sensor, it can determine that user is in away line state or running state.
Alternatively, step 130 can include：
Obtain the second corresponding relation of active state and sample frequency；
According to second corresponding relation, the second sample frequency corresponding to current activity state is determined.
Wherein it is possible to second corresponding relation is prestored in intelligent terminal.For example, the second corresponding relation can be with table
The form storage of lattice.
In certain embodiments, the first corresponding relation and the second corresponding relation can be stored in same form, such as table 1 below
Shown, wherein T represents the temporal signatures of signal, and F represents the frequecy characteristic of signal.It should be noted that this example of table 1 is to help
Help those skilled in the art to more fully understand the embodiment of the present invention, and the scope of the embodiment of the present invention have to be limited.
Table 1
| Active state | Sample frequency | Time and frequency zone |
| Stand | 16Hz | T |
| It is careful | 16Hz | T |
| Loosen seat | 5Hz | T+F |
| Sit quietly work | 16Hz | T |
| Normal walking | 16Hz | T |
| Staircase is up | 50Hz | T |
| Staircase is descending | 100Hz | T+F |
| Ascending for elevator | 5Hz | T |
| Elevator is descending | 5Hz | T |
As shown in table 1, some different active states may correspond to identical sample frequency, therefore, when the activity of user
When state changes, sample frequency may accordingly change corresponding to the active state of user, it is also possible to constant.
In second corresponding relation, active state can correspond with sample frequency, i.e., a kind of active state is corresponding a kind of
Sample frequency, as shown in table 1.
It should be understood that in the second corresponding relation, a kind of active state can also correspond to a variety of sample frequencys.In this case,
Also need to determine a kind of sample frequency as the second sample frequency from a variety of sample frequencys corresponding to current activity state.Example
Such as, a kind of sample frequency can be randomly choosed from a variety of sample frequencys as the second sample frequency, can also be a variety of from this
Selection meets the sample frequency of preparatory condition as the second sample frequency in sample frequency.
Specifically, it is determined that the second sample frequency includes corresponding to current activity state：
A variety of sample frequencys corresponding to current activity state are determined, a variety of sample frequencys include the second sample frequency；
According to energy expenditure and/or accuracy rate corresponding to every kind of sample frequency in a variety of sample frequencys, the second sampling is determined
Frequency, wherein, energy expenditure and/or accuracy rate corresponding to the second sample frequency meet preset requirement, standard corresponding to sample frequency
True rate is the accurate of the active state for the user that the feature for the signal for sampling to obtain using the sample frequency according to sensor determines
Rate.
Wherein it is possible to determine that current activity state is corresponding more with the second corresponding relation of sample frequency according to active state
Kind sample frequency.
In certain embodiments, the active state, sample frequency, energy that user can be prestored in intelligent terminal disappear
3rd corresponding relation of consumption and accuracy rate.For example, the 3rd corresponding relation can store in table form.By inquiring about the 3rd
Corresponding relation, you can determine that every kind of sample frequency corresponding to current activity state, and energy corresponding to every kind of sample frequency disappear
Consumption and/or accuracy rate.
Alternatively, the energy expenditure according to corresponding to every kind of sample frequency in a variety of sample frequencys, determines the second sample frequency,
Including：
The minimum sample frequency of energy expenditure is selected from a variety of sample frequencys as the second sample frequency.
The embodiment of the present invention is advantageous to further reduce the energy expenditure of sensor.
Alternatively, the accuracy rate according to corresponding to every kind of sample frequency in a variety of sample frequencys, the second sample frequency is determined, wrapped
Include：
Accuracy rate highest sample frequency is selected from a variety of sample frequencys as the second sample frequency.
The embodiment of the present invention can be used for requiring higher application scenarios to accuracy rate.
Alternatively, energy expenditure and accuracy rate according to corresponding to every kind of sample frequency in a variety of sample frequencys, determine second
Sample frequency, including：
From a variety of sample frequencys select accuracy rate be more than or equal to predetermined threshold value at least one sample frequency, and from this
The minimum sample frequency of energy expenditure is selected at least one sample frequency as the second sample frequency.
The embodiment of the present invention can make it that the energy expenditure of sensor is minimum on the premise of accuracy rate is ensured.
Alternatively, energy expenditure and accuracy rate according to corresponding to every kind of sample frequency in a variety of sample frequencys, determine second
Sample frequency, including：
Energy expenditure is selected from a variety of sample frequencys less than or equal at least one sample frequency of predetermined threshold value, and from
Accuracy rate highest sample frequency is selected at least one sample frequency as the second sample frequency.
The embodiment of the present invention can cause the standard of the sample frequency of the use of sensor on the premise of energy expenditure is ensured
True property highest.
Alternatively, method shown in Fig. 1 can also include：In the second sample frequency and the first sample frequency identical situation
Under, control sensor continues to be sampled using the first sample frequency.For example, in the second sample frequency and the first sample frequency phase
With in the case of, intelligent terminal can send to sensor and instruct, and indication sensor continues to be adopted using the first sample frequency
Sample.
In certain embodiments, intelligent terminal can not also send to sensor and instruct, and sensor is not receiving intelligence
In the case of the instruction that terminal is sent, it can continue to be sampled using current sample frequency.
It should be understood that in the embodiment of the present invention, intelligent terminal can perform method shown in Fig. 1 in real time, can so supervise at any time
The active state of user, and the change sample frequency that adjustment sensor uses in time of the active state according to user are surveyed, until
Meet to terminate during default termination condition.For example, Fig. 1 methods describeds can be stopped using in sensor or intelligent terminal shutdown
When terminate.
It should also be understood that intelligent terminal regularly (as periodically) can also perform method shown in Fig. 1, meter can be so saved
Calculate resource.
Therefore, the embodiment of the present invention can adjust the sample frequency of sensor use in time according to the active state of user,
So as to advantageously reduce the energy expenditure of sensor.
Fig. 2 is the structural representation of intelligent terminal according to embodiments of the present invention.Intelligent terminal shown in Fig. 2 can include obtaining
Take unit 210, determining unit 220 and control unit 230.
Acquiring unit 210 is used to obtain the current demand signal that sensor samples to obtain using the first sample frequency.
Determining unit 220 is used for the feature according to current demand signal, it is determined that the current active shape of the user using intelligent terminal
State, and determine the second sample frequency corresponding to current activity state.
Wherein, the feature of current demand signal can include the temporal signatures and/or frequency domain character of current demand signal.
Temporal signatures can include at least one in peak value, average, variance and covariance, and frequency domain character can include energy
At least one of in amount and entropy.
It should be understood that determining unit 220 can be also used for determining whether the second sample frequency and the first sample frequency are identical.
Control unit 230 is used in the case of the second sample frequency and the first sample frequency difference, and control sensor is adopted
Sampled with the second sample frequency.
In the embodiment of the present invention, the current active shape of user is determined by the feature of the current demand signal obtained according to sensor
State, it is then determined that sample frequency corresponding to the current activity state, in the currently used sampling frequency of the sample frequency and sensor
In the case of rate difference, the sensor is controlled to be sampled using sample frequency corresponding to the current activity state, being capable of basis
The sample frequency that the active state adjustment sensor of user uses, so as to advantageously reduce the energy expenditure of sensor.
Optionally it is determined that unit 220 can be specifically used for：
Obtain the first corresponding relation of the feature of signal and the active state of user；
According to the first corresponding relation, current activity state corresponding to the feature of current demand signal is determined.
Optionally it is determined that unit 220 can be specifically used for：
A variety of sample frequencys corresponding to current activity state are determined, a variety of sample frequencys include the second sample frequency；
According to energy expenditure and/or accuracy rate corresponding to every kind of sample frequency in a variety of sample frequencys, the second sampling is determined
Frequency, wherein, energy expenditure and/or accuracy rate corresponding to the second sample frequency meet preset requirement, standard corresponding to sample frequency
True rate is the accurate of the active state for the user that the feature for the signal for sampling to obtain using the sample frequency according to sensor determines
Rate.
Optionally it is determined that unit 220 can be specifically used for selecting the minimum sampling of energy expenditure from a variety of sample frequencys
Frequency is as the second sample frequency.
Optionally it is determined that unit 220 can also be specifically used for selecting the sampling of accuracy rate highest from a variety of sample frequencys
Frequency is as the second sample frequency.
Optionally it is determined that unit 220 can be specifically used for selecting accuracy rate to be more than or equal in advance from a variety of sample frequencys
If at least one sample frequency of threshold value, and the minimum sample frequency conduct of energy expenditure is selected from least one sample frequency
Second sample frequency.
Optionally it is determined that unit 220 can also be specifically used for selecting energy expenditure to be less than or wait from a variety of sample frequencys
In at least one sample frequency of predetermined threshold value, and accuracy rate highest sample frequency is selected from least one sample frequency
As the second sample frequency.
Alternatively, control unit 230 can be also used in the case of the second sample frequency and the first sample frequency identical,
Control sensor continues to be sampled using the first sample frequency.
It should be understood that the method that intelligent terminal 200 according to embodiments of the present invention may correspond in the inventive method embodiment
Executive agent, and above and other operation and/or function of the unit in intelligent terminal 200 is respectively in order to realize figure
The corresponding flow of method shown in 1, for sake of simplicity, will not be repeated here.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, it can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware
With the interchangeability of software, the composition and step of each example are generally described according to function in the above description.This
A little functions are performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specially
Industry technical staff can realize described function using distinct methods to each specific application, but this realization is not
It is considered as beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is
The specific work process of system, device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Division, only a kind of division of logic function, can there is other dividing mode, such as multiple units or component when actually realizing
Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.In addition, shown or beg for
The mutual coupling of opinion or direct-coupling or communication connection can be the INDIRECT COUPLINGs by some interfaces, device or unit
Or communication connection or electricity, the connection of mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize scheme of the embodiment of the present invention according to the actual needs
Purpose.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
It is that unit is individually physically present or two or more units are integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to be contributed in other words to prior art, or all or part of the technical scheme can be in the form of software product
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the present invention
Portion or part steps.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced
Change, these modifications or substitutions should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection domain be defined.
Claims (18)
1. a kind of control method of the sensor in intelligent terminal, including：
Obtain the current demand signal that the sensor samples to obtain using the first sample frequency；
According to the feature of the current demand signal, it is determined that the current activity state of the user using the intelligent terminal；
Determine the second sample frequency corresponding to the current activity state；
In the case of second sample frequency and the first sample frequency difference, the sensor is controlled using described the
Two sample frequencys are sampled.
2. the method according to claim 11, wherein, the feature according to the current demand signal, it is determined that using the intelligence
The current activity state of the user of energy terminal, including：
Obtain the first corresponding relation of the feature of signal and the active state of user；
According to first corresponding relation, the current activity state corresponding to the feature of the current demand signal is determined.
3. method according to claim 1 or 2, wherein, it is described to determine the second sampling corresponding to the current activity state
Frequency includes：
A variety of sample frequencys corresponding to the current activity state are determined, a variety of sample frequencys include the described second sampling frequency
Rate；
According to energy expenditure and/or accuracy rate corresponding to every kind of sample frequency in a variety of sample frequencys, described second is determined
Sample frequency, wherein, energy expenditure and/or accuracy rate meet preset requirement, the sampling corresponding to second sample frequency
Accuracy rate corresponding to frequency is the use that the feature for the signal for sampling to obtain using the sample frequency according to the sensor determines
The accuracy rate of the active state at family.
4. the method according to claim 11, wherein, it is described corresponding according to every kind of sample frequency in a variety of sample frequencys
Energy expenditure, determine second sample frequency, including：
The minimum sample frequency of energy expenditure is selected from a variety of sample frequencys as second sample frequency.
5. the method according to claim 11, wherein, it is described corresponding according to every kind of sample frequency in a variety of sample frequencys
Accuracy rate, determine second sample frequency, including：
Accuracy rate highest sample frequency is selected from a variety of sample frequencys as second sample frequency.
6. the method according to claim 11, wherein, it is described corresponding according to every kind of sample frequency in a variety of sample frequencys
Energy expenditure and accuracy rate, determine second sample frequency, including：
Accuracy rate is selected to be more than or equal at least one sample frequency of predetermined threshold value from a variety of sample frequencys, and from institute
State and the minimum sample frequency of energy expenditure is selected at least one sample frequency as second sample frequency.
7. method according to any one of claim 1 to 6, wherein, in addition to：
In the case of second sample frequency and the first sample frequency identical, the sensor is controlled to continue to use institute
The first sample frequency is stated to be sampled.
8. method according to any one of claim 1 to 7, wherein, the feature of the current demand signal is including described current
The temporal signatures and/or frequency domain character of signal.
9. according to the method for claim 8, wherein, the temporal signatures are included in peak value, average, variance and covariance
At least one of, the frequency domain character includes at least one in energy and entropy.
10. a kind of intelligent terminal, including：
Acquiring unit, the current demand signal for sampling to obtain using the first sample frequency for obtaining the sensor；
Determining unit, for the feature according to the current demand signal, it is determined that the current active of the user using the intelligent terminal
State, and determine the second sample frequency corresponding to the current activity state；
Control unit, in the case of second sample frequency and the first sample frequency difference, controlling the biography
Sensor is sampled using second sample frequency.
11. intelligent terminal according to claim 10, wherein, the determining unit is specifically used for：
Obtain the first corresponding relation of the feature of signal and the active state of user；
According to first corresponding relation, the current activity state corresponding to the feature of the current demand signal is determined.
12. the intelligent terminal according to claim 10 or 11, wherein, the determining unit is specifically used for：
A variety of sample frequencys corresponding to the current activity state are determined, a variety of sample frequencys include the described second sampling frequency
Rate；
According to energy expenditure and/or accuracy rate corresponding to every kind of sample frequency in a variety of sample frequencys, described second is determined
Sample frequency, wherein, energy expenditure and/or accuracy rate meet preset requirement, the sampling corresponding to second sample frequency
Accuracy rate corresponding to frequency is the use that the feature for the signal for sampling to obtain using the sample frequency according to the sensor determines
The accuracy rate of the active state at family.
13. intelligent terminal according to claim 12, wherein, the determining unit is specifically used for from a variety of sampling frequencies
The minimum sample frequency of energy expenditure is selected in rate as second sample frequency.
14. intelligent terminal according to claim 12, wherein, the determining unit is specifically used for from a variety of sampling frequencies
Accuracy rate highest sample frequency is selected in rate as second sample frequency.
15. intelligent terminal according to claim 12, wherein, the determining unit is specifically used for from a variety of sampling frequencies
Accuracy rate is selected to be more than or equal at least one sample frequency of predetermined threshold value in rate, and from least one sample frequency
The minimum sample frequency of energy expenditure is selected as second sample frequency.
16. the intelligent terminal according to any one of claim 10 to 15, wherein, described control unit is additionally operable to described
Second sample frequency is with the case of the first sample frequency identical, controlling the sensor to continue using the described first sampling
Frequency is sampled.
17. the intelligent terminal according to any one of claim 10 to 16, wherein, the feature of the current demand signal includes institute
State the temporal signatures and/or frequency domain character of current demand signal.
18. intelligent terminal according to claim 17, wherein, the temporal signatures include peak value, average, variance and association side
At least one of in difference, the frequency domain character includes at least one in energy and entropy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610474860.8A CN107544857B (en) | 2016-06-24 | 2016-06-24 | Control method of sensor in intelligent terminal and intelligent terminal |
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|---|---|---|---|
| CN201610474860.8A CN107544857B (en) | 2016-06-24 | 2016-06-24 | Control method of sensor in intelligent terminal and intelligent terminal |
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| Publication Number | Publication Date |
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| CN107544857A true CN107544857A (en) | 2018-01-05 |
| CN107544857B CN107544857B (en) | 2021-07-16 |
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| CN109379479A (en) * | 2018-11-27 | 2019-02-22 | 平安科技（深圳）有限公司 | A kind of mobile terminal built-in sensors performance test methods and device |
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| CN103519820A (en) * | 2013-09-29 | 2014-01-22 | 上海致趣网络科技有限公司 | Wearable device motion detection method |
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