CN108333612A - Localization method, device and smartwatch - Google Patents
Localization method, device and smartwatch Download PDFInfo
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- CN108333612A CN108333612A CN201810009349.XA CN201810009349A CN108333612A CN 108333612 A CN108333612 A CN 108333612A CN 201810009349 A CN201810009349 A CN 201810009349A CN 108333612 A CN108333612 A CN 108333612A
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- global position
- positioning
- position system
- positioning signal
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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
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
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- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Present invention is disclosed a kind of localization method, device and smartwatch, the described method comprises the following steps：Whether the positioning signal for detecting global position system is normal；When positioning signal is abnormal, position offset data are obtained by PDR units；Current location data is calculated according to nearest effective location data and set offset data.PDR positioning is switched to by satellite positioning under the weaker environment of the positioning signal of global position system to realize, so that smartwatch can be also accurately positioned in the presence of a harsh environment, solving smartwatch can not position under the weaker environment of positioning signal or the technical issues of position inaccurate, effectively increase the integrality and precision of the location path of smartwatch.The working frequency that global position system is further reduced when PDR is positioned, reduces the meaningless power consumption of system, thus greatly reduces the power consumption of smartwatch, extend stand-by time.
Description
Technical field
The present invention relates to electronic technology field, a kind of localization method, device and smartwatch are especially related to.
Background technology
With the development of wireless communication technique, intelligent wearable device gradually has been favored by people, wherein smartwatch is sent out
Exhibition is the most ripe.Smartwatch can not only indicate the time, also have the function of navigation, calibration, remind etc., or even also support and its
He interconnects smart machine, such as is interconnected with smart mobile phone, and supports the partial function of smart mobile phone, such as wechat prompting message,
Call reminding checks short message, checks mail, checking the functions such as schedule, it can be seen that, the application scenarios of smartwatch are very wide
It is wealthy.
Smartwatch carries out location navigation by global position system,
In, the positioning signal of global position system is weaker, it may appear that can not position or the case where position inaccurate so that smartwatch
The phenomenon that generating imperfect location path or offset.Meanwhile the frequent and invalid positioning of global position system, it also wastes and sets
Standby electricity shortens the stand-by time of smartwatch.
Invention content
The main object of the present invention is to provide a kind of localization method, device and smartwatch, it is intended to solve smartwatch and exist
It can not be positioned under the weaker environment of positioning signal or the technical issues of position inaccurate.
To achieve these objectives, the embodiment of the present invention proposes a kind of localization method, the described method comprises the following steps：
Whether the positioning signal for detecting global position system is normal；
When the positioning signal is abnormal, position offset data are obtained by pedestrian's dead reckoning PDR units；
Current location data is calculated according to nearest effective location data and the position offset data.
Optionally, it is also wrapped while the step that position offset data are obtained by pedestrian's dead reckoning PDR units
It includes：Reduce the working frequency of the global position system.
Optionally, the step of working frequency for reducing the global position system includes：By the satellite positioning system
The working frequency of system reduces by 50% or more.
Optionally, effective location data and the position offset data calculate current positioning number to the basis recently
According to the step of after further include：When the positioning signal restores normal, restore the working frequency of the global position system.
Optionally, effective location data and the position offset data calculate current positioning number to the basis recently
According to the step of after further include：When the positioning signal restores normal, the PDR units or the control PDR units are closed
Into low power consumpting state.
Optionally, the whether normal step of the positioning signal of the detection global position system includes：When the satellite
When position system can not obtain location data, judge that the positioning signal of the global position system is abnormal.
Optionally, the whether normal step of the positioning signal of the detection global position system includes：When the satellite
When serious offset occurs for the location data of position system, judge that the positioning signal of the global position system is abnormal.
Optionally, the whether normal step of the positioning signal of the detection global position system includes：When the satellite
When the quantity of effective satellite that position systematic search arrives is less than first threshold, judge the positioning signal of the global position system not just
Often.
Optionally, the whether normal step of the positioning signal of the detection global position system includes：When the satellite
When the signal-to-noise ratio for the satellite-signal that position systematic search arrives is less than second threshold, the positioning signal of the global position system is judged not
Normally.
Optionally, the localization method is applied to smartwatch.
The embodiment of the present invention proposes that a kind of positioning device, described device include simultaneously：
Whether signal detection module, the positioning signal for detecting global position system are normal；
Calculations of offset module, for when the positioning signal is abnormal, being obtained by pedestrian's dead reckoning PDR units
Position offset data；
Location Calculation module, it is current for being calculated according to effective location data and the position offset data recently
Location data.
Optionally, described device, which further includes frequency, reduces module, and the frequency reduces module and is used for：When the positioning signal
When abnormal, the working frequency of the global position system is reduced.
Optionally, the frequency reduces module and is used for：The working frequency of the global position system is reduced by 50% or more.
Optionally, described device further includes frequency retrieval module, and the frequency retrieval module is used for：When the positioning signal
When restoring normal, restore the working frequency of the global position system.
Optionally, described device further includes PDR control modules, and the PDR control modules are used for：When the positioning signal is extensive
When multiple normal, close the PDR units or the control PDR units enter low power consumpting state.
Optionally, the signal detection module includes the first judging unit, and first judging unit is used for：It is defended when described
When star positioning system can not obtain location data, judge that the positioning signal of the global position system is abnormal.
Optionally, the signal detection module includes second judgment unit, and the second judgment unit is used for：It is defended when described
When serious offset occurs for the location data of star positioning system, judge that the positioning signal of the global position system is abnormal.
Optionally, the signal detection module includes third judging unit, and the third judging unit is used for：It is defended when described
When the quantity for effective satellite that star positioning system searches is less than first threshold, the positioning signal of the global position system is judged
It is abnormal.
Optionally, the signal detection module includes the 4th judging unit, and the 4th judging unit is used for：It is defended when described
When the signal-to-noise ratio for the satellite-signal that star positioning system searches is less than second threshold, the positioning letter of the global position system is judged
It is number abnormal.
The embodiment of the present invention also proposes a kind of smartwatch comprising memory, processor and at least one is stored in
In the memory and it is configured as the application program executed by the processor, the application program is configurable for executing
Aforementioned localization method.
A kind of localization method that the embodiment of the present invention is provided, by adding a PDR units, when determining for global position system
When position signal is abnormal, then position offset data are obtained by PDR units, and inclined according to nearest effective location data and position
It moves data and calculates current location data, to realize under the weaker environment of the positioning signal of global position system by defending
Star positioning is switched to PDR positioning (a kind of assistant positioning system) so that smartwatch can also carry out accurately fixed in the presence of a harsh environment
Position, solving smartwatch can not position under the weaker environment of positioning signal or the technical issues of position inaccurate, effectively carry
The high integrality and precision of the location path of smartwatch.The work of global position system is further reduced when PDR is positioned
Frequency reduces the meaningless power consumption of system, thus greatly reduces the power consumption of smartwatch, extend stand-by time.
Description of the drawings
Fig. 1 is the flow chart of the localization method first embodiment of the present invention；
Fig. 2 is the flow chart of the localization method second embodiment of the present invention；
Fig. 3 is the module diagram of the positioning device first embodiment of the present invention；
Fig. 4 is the module diagram of the signal detection module in Fig. 3；
Fig. 5 is the module diagram of the positioning device second embodiment of the present invention；
Fig. 6 is the module diagram of the positioning device 3rd embodiment of the present invention；
Fig. 7 is the module diagram of the positioning device fourth embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that is used in the specification of the present invention arranges
It refers to there are the feature, integer, step, operation, element and/or component, but it is not excluded that presence or addition to take leave " comprising "
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange
Diction "and/or" includes that the whole of one or more associated list items or any cell are combined with whole.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology), there is meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless by specific definitions as here, the meaning of idealization or too formal otherwise will not be used
To explain.
It includes wireless communication that those skilled in the art of the present technique, which are appreciated that " terminal " used herein above, " terminal device " both,
The equipment of number receiver, only has the equipment of the wireless signal receiver of non-emissive ability, and includes receiving and transmitting hardware
Equipment, have on bidirectional communication link, can execute two-way communication reception and emit hardware equipment.This equipment
May include：Honeycomb or other communication equipments are shown with single line display or multi-line display or without multi-line
The honeycomb of device or other communication equipments；PCS (Personal Communications Service, PCS Personal Communications System), can
With combine voice, data processing, fax and/or communication ability；PDA (Personal Digital Assistant, it is personal
Digital assistants), may include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day
It goes through and/or GPS (Global Positioning System, global positioning system) receiver；Conventional laptop and/or palm
Type computer or other equipment, have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or its
His equipment." terminal " used herein above, " terminal device " they can be portable, can transport, be mounted on the vehicles (aviation,
Sea-freight and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth
And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on
Network termination, music/video playback terminal, such as can be PDA, MID (Mobile Internet Device, mobile Internet
Equipment) and/or mobile phone with music/video playing function, can also be the equipment such as smart television, set-top box.
The localization method of the embodiment of the present invention can be applied to the wearable devices such as smartwatch, can also be applied to mobile phone,
The mobile terminals such as tablet.It is described in detail for being applied to smartwatch below.
Referring to Fig.1, the localization method first embodiment for proposing the present invention, the described method comprises the following steps：
Whether S11, the positioning signal for detecting global position system are normal.When positioning signal is abnormal, enter step
S12。
In the embodiment of the present invention, PDR (Pedestrian Dead Reckoning, pedestrian's boat position are added for smartwatch
Calculate) unit, smartwatch start global position system after, PDR units can be initialized immediately, it is preferable that PDR units are initial
Change and complete then to enter low power consumpting state (such as dormant state, sleep state), to save electricity.Optionally, PDR units include nine
Axle sensor and corresponding processing unit, the preferred MCU of the processing unit (Microcontroller Unit, micro-control unit).
In global position system position fixing process, smartwatch is in real time or the positioning of the detection global position system of timing is believed
It is number whether normal.Global position system described here may include GPS, BDS (BeiDou Navigation Satellite
System, Beidou satellite navigation system), at least one of GLONASS (GLONASS satellite navigation system).
Optionally, smartwatch judges whether global position system can obtain location data (such as latitude and longitude coordinates), when
When global position system can not obtain location data, then judge that the positioning signal of global position system is abnormal, signal is weaker.
Optionally, smartwatch judges whether the location data of global position system is deviated, when being deviated
When, further judge whether offset is more than preset value, when offset is more than preset value, then judges determining for global position system
Serious offset occurs for position data, then judges that the positioning signal of global position system is abnormal at this time, signal is weaker.
Optionally, smartwatch obtains the quantity for effective satellite that global position system searches, and judges effective satellite
Whether quantity is less than first threshold, when the quantity of effective satellite is less than first threshold, then judges the positioning of global position system
Signal is abnormal, and signal is weaker.First threshold can be set according to actual needs, can be set as 4-6, such as work as effective satellite
Quantity be less than 5 when, then judge that positioning signal is abnormal.
Optionally, smartwatch obtains the signal-to-noise ratio for the satellite-signal that global position system searches, and judges satellite-signal
Signal-to-noise ratio whether less than second threshold then judge that the positioning signal of global position system is abnormal when less than second threshold,
Signal is weaker.The signal-to-noise ratio of satellite-signal described here, the signal-to-noise ratio of preferably strongest satellite-signal.Second threshold can be with
It sets according to actual needs, can be set as 25-35dB, such as when signal-to-noise ratio is less than 30dB, then judge that positioning signal is abnormal.
S12, position offset data are obtained by PDR units.
In the embodiment of the present invention, when detecting that the positioning signal of global position system is abnormal, smartwatch then wakes up
(when in a dormant state) or start (when not yet starting) PDR units, position offset data are obtained by PDR units.PDR units
By nine axle sensors, moving direction and distance are added up, the specific path of space variation is obtained, to calculate
Position offset data, PDR technologies are the location technologies of comparative maturity in the prior art, and details are not described herein.
S13, current location data is calculated according to effective location data and position offset data recently.
What the positioning signal of effective location data, that is, global position system finally obtained before becoming abnormal recently determines
Position data.Smartwatch does accumulating operation (vector sum operation) to nearest effective location data with position offset data, will transport
Result is calculated as current location data.
To solve, smartwatch can not position under the weak environment of positioning signal or the technology of position inaccurate is asked
Topic effectively prevents the phenomenon that smartwatch generates imperfect location path or offset in the presence of a harsh environment.
With reference to Fig. 2, proposes the localization method second embodiment of the present invention, the described method comprises the following steps：
Whether S21, the positioning signal for detecting global position system are normal.When positioning signal is abnormal, enter step
S22。
S22, position offset data are obtained by PDR units, and reduces the working frequency of global position system.
S23, current location data is calculated according to effective location data and position offset data recently.
S24, when satellite system positioning signal restore it is normal when, restore the working frequency of global position system.
In the present embodiment, when positioning signal is abnormal, while obtaining position offset data by PDR units, also
The working frequency of global position system is reduced, the working frequency of global position system is preferably reduced by 50% or more, is to reduce
It unites meaningless power consumption, thus greatly reduces the power consumption of smartwatch, extend stand-by time.
In step S24, after being switched to PDR positioning, still real-time or timing the detection global position system of smartwatch
Positioning signal whether restore normal, when positioning signal restore it is normal when, then in time restore global position system working frequency,
To revert to satellite positioning pattern, positioned using global position system.
When whether the positioning signal for detecting global position system restores normal, defended with being detected in step S11 and step S21
Whether normal the positioning signal of star positioning system method be similar, such as：When effective satellite that global position system searches
When quantity is greater than or equal to first threshold, then judge that the positioning signal of global position system restores normal；Work as global position system
When the signal-to-noise ratio of the satellite-signal searched is greater than or equal to second threshold, then judge that the positioning signal of global position system is restored
Normally；When the location data of global position system does not shift or offset is less than or equal to preset value, then judge
The positioning signal of global position system restores normal.
In addition it is also possible to the location data of global position system is compared with the location data after being positioned by PDR,
When the error of the two is less than setting value, then judge that the positioning signal of global position system restores normal.
Further, when the positioning signal of satellite system restores normal, PDR units can also be closed or control PDR is mono-
Member enters low power consumpting state (such as dormant state or sleep state), to be further reduced the meaningless power consumption of system, reduces intelligence
The power consumption of wrist-watch extends the stand-by time of smartwatch.
The localization method of the embodiment of the present invention, by adding a PDR units, when global position system positioning signal not just
Chang Shi then obtains position offset data by PDR units, and is calculated according to nearest effective location data and position offset data
Go out current location data, is switched by satellite positioning under the weaker environment of the positioning signal of global position system to realize
For PDR position so that smartwatch can be also accurately positioned in the presence of a harsh environment, solve smartwatch positioning signal compared with
It can not be positioned under weak environment or the technical issues of position inaccurate, effectively increase the integrality of the location path of smartwatch
And precision.The working frequency that global position system is further reduced when PDR is positioned, reduces the meaningless power consumption of system, from
And the power consumption of smartwatch is greatly reduced, extend stand-by time.
With reference to Fig. 3, the positioning device first embodiment of the present invention is proposed, described device includes signal detection module 10, partially
Computing module 20 and location Calculation module 30 are moved, wherein：Signal detection module 10, the positioning for detecting global position system are believed
It is number whether normal；Calculations of offset module 20, for when the positioning signal of global position system is abnormal, being obtained by PDR units
Offset data is set in fetch bit；Location Calculation module 30, for being calculated according to effective location data and position offset data recently
Current location data.
In global position system position fixing process, signal detection module 10 is in real time or the detection global position system of timing
Whether positioning signal is normal.
As shown in figure 4, signal detection module 10 includes the first judging unit 11, it is used to whether judge global position system
Location data (such as latitude and longitude coordinates) can be obtained, when global position system can not obtain location data, then judges satellite
The positioning signal of position system is abnormal, and signal is weaker.
Further, signal detection module 10 further includes second judgment unit 12, is used to judge global position system
Whether location data is deviated, and when offset has occurred, is further judged whether offset is more than preset value, is worked as offset
When more than preset value, then judges that serious offset occurs for the location data of global position system, then judge global position system at this time
Positioning signal it is abnormal, signal is weaker.
Further, signal detection module 10 further includes third judging unit 13, is used to obtain global position system and searches
The quantity for effective satellite that rope arrives, judges whether the quantity of effective satellite is less than first threshold, when the quantity of effective satellite is less than
When first threshold, then judge that the positioning signal of global position system is abnormal, signal is weaker.First threshold can be according to practical need
It sets, can be set as 4-6, such as when the quantity of effective satellite is less than 5, then judge that positioning signal is abnormal.
Further, signal detection module 10 further includes the 4th judging unit 14, is used to obtain global position system and searches
The signal-to-noise ratio for the satellite-signal that rope arrives, judges whether the signal-to-noise ratio of satellite-signal is less than second threshold, when less than second threshold,
Then judge that the positioning signal of global position system is abnormal, signal is weaker.The signal-to-noise ratio of satellite-signal described here, preferably
The signal-to-noise ratio of strongest satellite-signal.Second threshold can be set according to actual needs, can be set as 25-35dB, such as when letter
When making an uproar than being less than 30dB, then judge that positioning signal is abnormal.
In other embodiments, signal detection module 10 can also only include the first judging unit 11, second judgment unit
12, any one in third judging unit 13 and the 4th judging unit 14, any two or three arbitrary.
In the embodiment of the present invention, when detecting that the positioning signal of global position system is abnormal, calculations of offset module 20
(when not yet starting) PDR units are then waken up (when in a dormant state) or started, position offset data are obtained by PDR units.
PDR technologies are the location technologies of comparative maturity in the prior art, and details are not described herein.
What the positioning signal of effective location data, that is, global position system finally obtained before becoming abnormal recently determines
Position data.Location Calculation module 30 does accumulating operation to nearest effective location data with position offset data, and (vector sum is transported
Calculate), using operation result as current location data.
To solve, smartwatch can not position under the weak environment of positioning signal or the technology of position inaccurate is asked
Topic effectively prevents the phenomenon that smartwatch generates imperfect location path or offset in the presence of a harsh environment.
Further, as shown in figure 5, in the positioning device second embodiment of the present invention, which further includes frequency drop
Low module 40 is used to reduce the working frequency of global position system when the positioning signal of global position system is abnormal, excellent
The working frequency of global position system is reduced by 50% or more by choosing, to reduce the meaningless power consumption of system, is thus greatly reduced
The power consumption of smartwatch, extends stand-by time.
Further, as shown in fig. 6, in the positioning device 3rd embodiment of the present invention, which further includes frequency
Recovery module 50 is used in time restore when the positioning signal of satellite system restores normal the work frequency of global position system
Rate is positioned to revert to satellite positioning pattern using global position system.
In the present embodiment, after smartwatch is switched to PDR positioning, still real-time or timing the inspection of signal detection module 10
Whether the positioning signal for surveying global position system restores normal, and when positioning signal restores normal, frequency retrieval module 50 is then extensive
The working frequency of multiple global position system, to be positioned using global position system.
Signal detection module 10 is when whether the positioning signal for detecting global position system restores normal, with detection satellite
Whether normal the positioning signal method of position system be similar, such as：When the quantity for effective satellite that global position system searches
When more than or equal to first threshold, signal detection module 10 then judges that the positioning signal of global position system restores normal；When defending
When the signal-to-noise ratio for the satellite-signal that star positioning system searches is greater than or equal to second threshold, signal detection module 10 then judges to defend
The positioning signal of star positioning system restores normal；When the location data of global position system does not shift or offset is small
When preset value, signal detection module 10 then judges that the positioning signal of global position system restores normal.
In addition, signal detection module 10 can also by the location data of global position system with positioned by PDR after determine
Position data are compared, and when the error of the two is less than setting value, then judge that the positioning signal of global position system restores normal.
Further, as shown in fig. 7, in the positioning device fourth embodiment of the present invention, which further includes PDR controls
Molding block 60, be used for when global position system positioning signal restore it is normal when, close PDR units or control PDR units into
Enter low power consumpting state (such as dormant state or sleep state), to be further reduced the meaningless power consumption of system, reduces smartwatch
Power consumption, extend the stand-by time of smartwatch.
The positioning device of the embodiment of the present invention, by adding a PDR units, when global position system positioning signal not just
Chang Shi then obtains position offset data by PDR units, and is calculated according to nearest effective location data and position offset data
Go out current location data, is switched by satellite positioning under the weaker environment of the positioning signal of global position system to realize
For PDR position so that smartwatch can be also accurately positioned in the presence of a harsh environment, solve smartwatch positioning signal compared with
It can not be positioned under weak environment or the technical issues of position inaccurate, effectively increase the integrality of the location path of smartwatch
And precision.The working frequency that global position system is further reduced when PDR is positioned, reduces the meaningless power consumption of system, from
And the power consumption of smartwatch is greatly reduced, extend stand-by time.
The present invention proposes a kind of smartwatch simultaneously comprising memory, processor and at least one is stored in storage
In device and it is configured as the application program executed by processor, the application program is configurable for executing localization method.Institute
Localization method is stated to include the following steps：Whether the positioning signal for detecting global position system is normal；When positioning signal is abnormal,
Position offset data are obtained by pedestrian's dead reckoning PDR units；According to nearest effective location data and position offset number
According to calculating current location data.Localization method described in the present embodiment is involved by above-described embodiment in the present invention
Localization method, details are not described herein.
The smartwatch of the embodiment of the present invention, by adding a PDR units, when global position system positioning signal not just
Chang Shi then obtains position offset data by PDR units, and is calculated according to nearest effective location data and position offset data
Go out current location data, is switched by satellite positioning under the weaker environment of the positioning signal of global position system to realize
For PDR position so that smartwatch can be also accurately positioned in the presence of a harsh environment, solve smartwatch positioning signal compared with
It can not be positioned under weak environment or the technical issues of position inaccurate, effectively increase the integrality of the location path of smartwatch
And precision.The working frequency that global position system is further reduced when PDR is positioned, reduces the meaningless power consumption of system, from
And the power consumption of smartwatch is greatly reduced, extend stand-by time.
It will be understood by those skilled in the art that the present invention includes being related to for executing one in operation described herein
Or multinomial equipment.These equipment can specially be designed and be manufactured for required purpose, or can also include general-purpose computations
Known device in machine.There is these equipment the computer program being stored in it, these computer programs selectively to activate
Or reconstruct.Such computer program, which can be stored in equipment (for example, computer) readable medium or be stored in, to be suitable for
Storage e-command is simultaneously coupled in any kind of medium of bus respectively, and the computer-readable medium includes but not limited to
Any kind of disk (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM (Read-Only Memory, it is read-only to deposit
Reservoir), RAM (Random Access Memory, random access memory), EPROM (Erasable Programmable Read-
Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically Erasable Programmable
Read-Only Memory, Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or light card.It is, readable
Medium includes by any medium of equipment (for example, computer) storage or transmission information in the form of it can read.
Those skilled in the art of the present technique be appreciated that can with computer program instructions come realize these structure charts and/or
The combination of each frame and these structure charts and/or the frame in block diagram and/or flow graph in block diagram and/or flow graph.This technology is led
Field technique personnel be appreciated that these computer program instructions can be supplied to all-purpose computer, special purpose computer or other
The processor of programmable data processing method is realized, to pass through the processing of computer or other programmable data processing methods
Device come execute structure chart and/or block diagram and/or flow graph disclosed by the invention frame or multiple frames in specify scheme.
Those skilled in the art of the present technique are appreciated that in the various operations crossed by discussion in the present invention, method, flow
Steps, measures, and schemes can be replaced, changed, combined or be deleted.Further, each with having been crossed by discussion in the present invention
Other steps, measures, and schemes in kind operation, method, flow may also be alternated, changed, rearranged, decomposed, combined or deleted.
Further, in the prior art to have and step, measure, the scheme in various operations, method, flow disclosed in the present invention
It may also be alternated, changed, rearranged, decomposed, combined or deleted.
Above by reference to the preferred embodiment of the present invention has been illustrated, not thereby limit to the interest field of the present invention.This
Field technology personnel do not depart from the scope of the present invention and essence, can there are many variant scheme realize the present invention, for example as one
The feature of a embodiment can be used for another embodiment and obtain another embodiment.All institutes within the technical concept with the present invention
The all any modification, equivalent and improvement of work, should all be within the interest field of the present invention.
Claims (10)
1. a kind of localization method, which is characterized in that include the following steps：
Whether the positioning signal for detecting global position system is normal；
When the positioning signal is abnormal, position offset data are obtained by pedestrian's dead reckoning PDR units；
Current location data is calculated according to nearest effective location data and the position offset data.
2. localization method according to claim 1, which is characterized in that described to be obtained by pedestrian's dead reckoning PDR units
Fetch bit further includes while setting the step of offset data：
Reduce the working frequency of the global position system.
3. localization method according to claim 2, which is characterized in that the work frequency for reducing the global position system
The step of rate includes：
The working frequency of the global position system is reduced by 50% or more.
4. localization method according to claim 2, which is characterized in that the basis effective location data and described recently
Position offset data calculated after the step of current location data：
When the positioning signal restores normal, restore the working frequency of the global position system.
5. localization method according to claim 1, which is characterized in that the basis effective location data and described recently
Position offset data calculated after the step of current location data：
When the positioning signal restores normal, closes the PDR units or the control PDR units enter low power consumpting state.
6. a kind of positioning device, which is characterized in that including：
Whether signal detection module, the positioning signal for detecting global position system are normal；
Calculations of offset module, for when the positioning signal is abnormal, position to be obtained by pedestrian's dead reckoning PDR units
Offset data；
Location Calculation module, for calculating current positioning according to effective location data and the position offset data recently
Data.
7. positioning device according to claim 6, which is characterized in that described device, which further includes frequency, reduces module, described
Frequency reduces module and is used for：
When the positioning signal is abnormal, the working frequency of the global position system is reduced.
8. positioning device according to claim 7, which is characterized in that the frequency reduces module and is used for：By the satellite
The working frequency of positioning system reduces by 50% or more.
9. positioning device according to claim 7, which is characterized in that described device further includes frequency retrieval module, described
Frequency retrieval module is used for：When the positioning signal restores normal, restore the working frequency of the global position system.
10. a kind of smartwatch, including memory, processor and at least one it be stored in the memory and be configured as
The application program executed by the processor, which is characterized in that the application program be configurable for perform claim require 1 to
5 any one of them localization methods.
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