CN106855627A - A kind of method for reducing GNSS receiver power consumption, device and receiver - Google Patents
A kind of method for reducing GNSS receiver power consumption, device and receiver Download PDFInfo
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- CN106855627A CN106855627A CN201611247226.7A CN201611247226A CN106855627A CN 106855627 A CN106855627 A CN 106855627A CN 201611247226 A CN201611247226 A CN 201611247226A CN 106855627 A CN106855627 A CN 106855627A
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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
- G01S19/27—Acquisition or tracking or demodulation of signals transmitted by the system creating, predicting or correcting ephemeris or almanac data within the receiver
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- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
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- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
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Abstract
The present invention is on a kind of method for reducing GNSS receiver power consumption, device and receiver, carrier-to-noise ratio of the method according to each tracking channel institute tracking satellite signal in the translational speed and receiver of receiver, determine accounting value of the working time of radio-frequency module in tracking channel and receiver and pre-processing module in PVT resolves the work period, and, when receiver is collected into complete ephemeris and almanac parameters, then each module before controlling above-mentioned PVT to resolve module carries out satellite-signal treatment according to the accounting value corresponding working time.The present invention is according to the motion state of receiver and the intensity of reception satellite-signal, the switch gap time of each module makes it be worked with low-power consumption mode before dynamic select PVT resolving modules, simultaneously, according to ephemeris and almanac regeneration characteristics, selective receiver enters the time of low-power consumption mode, to ensure that receiver is collected into newest ephemeris and almanac, the power consumption that not only ensure that PVT resolved the module PVT precision for being calculated but also reduced receiver.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of method for reducing GNSS receiver power consumption, device and connect
Receipts machine.
Background technology
GLONASS (Global Navigation Satellite System, GNSS) is a synthesis
Concept, refers to the satellite navigation system of global all operations, including GPS, WAAS and region system
System.It is currently in operation GPS, the GLONASS (Global of Russia for having the U.S. with the global positioning system of implementing plan
Navigation Satellite System), BDS (the Beidou Navigation of the GALILEO of European Union and China
Satellite System).And strengthening system is distributed in multiple countries, such as WAAS (the Wide Area in the U.S.
Augmentation System), Europe EGNOS (European Geostationary Navigation Overlay
Service), Russian SDCM (System of Differential Correction and Monitoring).Additionally,
Also district system, such as Japanese QZSS (Quasi-Zenith Satellite System) and the IRNSS of India
(Indian Regional Navigation Satellite System).The development of various satellite navigation systems causes navigation
The number of satellite that receiver can be used to position is significantly increased, and greatly improves experience of the user under complex environment so that fixed
The accuracy of position, stability and integrity have huge raising.
Fig. 1 is the structural representation of GNSS receiver in the prior art.As shown in figure 1, the GNSS receiver includes antenna
1st, radio-frequency module 2, pre-processing module 3, trapping module 4, tracking module 5 and PVT (Position, Velocity, Time, position,
Speed, time) resolve module 6, wherein, satellite-signal that radio-frequency module 2 receives antenna 1 through amplification and be downconverted into for
Intermediate-freuqncy signal, eventually passes the digital medium-frequency signal that modulus (A/D) is converted into discrete time；Pre-processing module 3 is responsible for logarithm
The pretreatment of word intermediate-freuqncy signal, including sample rate conversion, gain control etc.；Trapping module 4 is responsible for the capture of satellite-signal；Tracking
Module 5 is responsible for the satellite-signal that tracking is arrived, and it includes many independent passages, channels track satellite-signal all the way；
PVT resolves Position, Velocity and Time information of the module 6 using the signal of change receiver of tracking channel tracking.
Wherein, the sample rate of receiver is generally more than ten million to tens megahertzs, and then the correlator need in tracking channel
Related operation is carried out so that more than ten megahertzs of frequency is continual and by the result output of related operation to tracking channel
Track loop, however, the working frequency that track loop output carries out PVT resolvings to PVT resolvings module 6 is usually several hertz to zero
Several hertz of point.Above-mentioned PVT resolves module 6 and differs larger working method with its preceding root module working frequency, causes GNSS to receive
The power consumption of machine is larger, it is impossible to the requirement for meet receiver low-power consumption, working long hours.
The content of the invention
To overcome problem present in correlation technique, the present invention to provide a kind of method for reducing GNSS receiver power consumption, dress
Put and receiver.
First aspect according to embodiments of the present invention, there is provided a kind of method of reduction GNSS receiver power consumption, the method bag
Include：
Each tracking channel institute tracking satellite signal in the translational speed and the receiver of the receiver is obtained respectively
Carrier-to-noise ratio；
According to the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal, determine that the tracking is logical
The working time of radio-frequency module and pre-processing module in road and the receiver, PVT resolved module work in the receiver
Make the accounting value in the cycle, wherein, the accounting value is less than or equal to 1；
Judge whether the receiver is collected into complete ephemeris parameter and almanac parameters；
If the receiver is collected into complete ephemeris parameter and almanac parameters, the tracking channel, described is controlled
Radio-frequency module and the pre-processing module carry out satellite-signal treatment according to the accounting value corresponding working time.
Alternatively, according to the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal, institute is determined
State working time of radio-frequency module in tracking channel and the receiver and pre-processing module PVT solutions in the receiver
The accounting value in the module work period is calculated, including：
Obtain the threshold speed scope residing for the translational speed；
Classification of the carrier-to-noise ratio in each carrier-to-noise ratio threshold range for obtaining each tracking channel institute tracking satellite signal is defended
Star number mesh；
Threshold speed scope and the classification number of satellite according to residing for the translational speed, determine the tracking channel
And the radio-frequency module in the receiver and the PVT resolvings module work in the receiver of the working time of pre-processing module
Accounting value in cycle.
Alternatively, methods described also includes：
Judge the ephemeris parameter whether beyond ephemeris validity；
If the fruit ephemeris parameter exceeds ephemeris validity, the tracking channel, the radio-frequency module and described are controlled
Pre-processing module collects complete ephemeris parameter according to normal working frequency again.
Alternatively, methods described also includes：
Judge the almanac parameters whether beyond the almanac term of validity；
If the fruit almanac parameters exceed the almanac term of validity, the tracking channel, the radio-frequency module and described are controlled
Pre-processing module collects complete almanac parameters according to normal working frequency again.
Alternatively, each tracking channel institute tracking satellite in the translational speed and the receiver of the receiver is obtained respectively
Before the carrier-to-noise ratio of signal, also include：
Using selecting-star algorithm, participation PVT is selected in the satellite tracked from all tracking channels of the receiver and is resolved
Satellite；
The tracking channel closed in all tracking channels outside the satellite correspondence tracking channel for participating in PVT resolvings.
Alternatively, the tracking closed outside the satellite correspondence tracking channel that PVT resolvings are participated in all tracking channels
After passage, also include：
Judge whether to reach visible star capture time；
If reaching visible star capture time, the trapping module in the receiver is controlled to carry out visible satellite capture；
According to the visible satellite that the trapping module is captured, the tracking channel in the receiver is controlled to carry out described catching
Obtain the tracking of the visible satellite that module is captured.
Alternatively, controlling the trapping module in the receiver carries out visible satellite capture, including：
Controlling the trapping module in the receiver carries out being changed into visible acquiring satellite from invisible.
Second aspect according to embodiments of the present invention, there is provided a kind of device of reduction GNSS receiver power consumption, the device bag
Include：
Signal parameter acquisition module：For respectively being tracked in the translational speed and the receiver that obtain the receiver respectively
The carrier-to-noise ratio of passage institute tracking satellite signal；
Working time determining module：Load according to the translational speed and each tracking channel institute tracking satellite signal is made an uproar
Than determining the working time of radio-frequency module in the tracking channel and the receiver and pre-processing module in the reception
PVT resolves the accounting value in the module work period in machine, wherein, the accounting value is less than or equal to 1；
Ephemeris parameter judge module：For judging whether the receiver is collected into complete ephemeris parameter and almanac ginseng
Number；
Low power consumption control module：If being collected into complete ephemeris parameter and almanac parameters for the receiver, control
The tracking channel, the radio-frequency module and the pre-processing module is made to be defended according to the accounting value corresponding working time
Star signal transacting.
A kind of third aspect according to embodiments of the present invention, there is provided GNSS receiver, including：
Processor；
Memory for storing processor-executable instruction；
Wherein, the processor is configured as：
Each tracking channel institute tracking satellite signal in the translational speed and the receiver of the receiver is obtained respectively
Carrier-to-noise ratio；
According to the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal, determine that the tracking is logical
The working time of radio-frequency module and pre-processing module in road and the receiver, PVT resolved module work in the receiver
Make the accounting value in the cycle, wherein, the accounting value is less than or equal to 1；
Judge whether the receiver is collected into complete ephemeris parameter and almanac parameters；
If the receiver is collected into complete ephemeris parameter and almanac parameters, the tracking channel, described is controlled
Radio-frequency module and the pre-processing module carry out satellite-signal treatment according to the accounting value corresponding working time.
From above technical scheme, a kind of method for reducing GNSS receiver power consumption provided in an embodiment of the present invention, dress
Put and receiver, according to the carrier-to-noise ratio of each tracking channel institute tracking satellite signal in the translational speed and receiver of receiver, really
The working time of radio-frequency module and pre-processing module in the fixed tracking channel and the receiver is in the receiver
PVT resolves the accounting value that module was carried out in the work period of PVT resolvings, also, is collected into complete ephemeris parameter in receiver
During with almanac parameters, then the tracking channel in receiver, radio-frequency module and pre-processing module is controlled to be worth according to the accounting corresponding
Working time carries out satellite-signal treatment.The embodiment of the present invention, motion state according to receiver and receives satellite-signal
Intensity, the switch gap time of each module in dynamic select receiver before PVT resolvings module makes it with low-power consumption mode work
Make, meanwhile, the characteristics of renewal according to satellite ephemeris and almanac information, selective receiver enters the time of low-power consumption mode, to protect
Card receiver is collected into newest ephemeris and almanac information, so, both ensure that PVT resolved the PVT precision that module is calculated,
Reduce the power consumption of whole receiver as much as possible again.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows and meets implementation of the invention
Example, and be used to explain principle of the invention together with specification.
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of GNSS receiver in the prior art；
Fig. 2 is the schematic flow sheet of the method for the reduction GNSS receiver power consumption that the embodiment of the present invention one is provided；
Fig. 3 is the schematic flow sheet of the method for the reduction GNSS receiver power consumption that the embodiment of the present invention two is provided；
Fig. 4 is a kind of structural representation of device for reducing GNSS receiver power consumption provided in an embodiment of the present invention.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in implementation method do not represent and the consistent all implementation methods of the present invention.Conversely, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Need to search for and track all visible satellites for receiving signal incessantly based on current GNSS receiver, and
Select a part of satellite to participate in PVT resolvings by selecting-star algorithm to calculate the work of the Position, Velocity and Time information of receiver
Mode causes the larger problem of receiver power consumption, translational speed and reception satellite-signal of the embodiment of the present invention according to receiver
Intensity, dynamic adjustment receiver is opened and the shut-in time, and its general principle is：The number of satellite of high carrier-to-noise ratio is counted, if high
Carrier-to-noise ratio number of satellite is more, then can use the shorter operation of receiver time to reduce power consumption, meanwhile, receiver translational speed
When relatively low, change in location is smaller between adjacent positioning twice, can use the shorter operation of receiver time to reduce power consumption, leads to
Aforesaid way is crossed, balance is obtained between the power consumption and positioning precision of receiver.
Fig. 2 is the schematic flow sheet of the method for the reduction GNSS receiver power consumption that the embodiment of the present invention one is provided.Such as Fig. 2 institutes
Show, the method specifically includes following steps：
S110：Each tracking channel institute tracking satellite letter in the translational speed and the receiver of the receiver is obtained respectively
Number carrier-to-noise ratio.
After receiver start is started working, the trapping module in receiver will search for all of satellite and track-while-scan
The satellite for arriving, is then sent to tracking result PVT and resolves module, and resolving module by PVT calculates the position of receiver, speed
And temporal information.
Meanwhile, the tracking channel in trapping module in receiver can calculate the carrier-to-noise ratio of institute's tracking satellite signal, wherein,
Carrier-to-noise ratio has reacted the intensity of satellite-signal, and the intensity of satellite-signal is bigger, then user ranging errors are smaller.
S120：According to the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal, it is determined that described
The working time of radio-frequency module and pre-processing module in tracking channel and the receiver, PVT was resolved in the receiver
Accounting value in the module work period, wherein, the accounting value is less than or equal to 1.
Specifically, due to receiver translational speed it is relatively low when, it is adjacent position twice between change in location it is smaller, therefore can be with
Using the shorter operation of receiver time, (embodiment of the present invention is for convenience by the tracking channel in receiver, radio frequency mould
The working time of block and pre-processing module is referred to as the operation of receiver time) reducing power consumption；Meanwhile, count defending for high carrier-to-noise ratio
Star number mesh, if high carrier-to-noise ratio number of satellite is more, accurate positioning, accordingly, when just can use shorter operation of receiver
Between reducing power consumption.
The embodiment of the present invention is using the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal to receiver
The mode of section is divided, switch gap time of the operation of receiver time in PVT resolves the work period is determined.
First, the threshold speed scope residing for receiver translational speed is obtained；Secondly, each tracking channel of acquisition is tracked and defended
The carrier-to-noise ratio of star signal is in the classification number of satellite of each carrier-to-noise ratio threshold range；Finally, according to residing for the translational speed
Threshold speed scope and the classification number of satellite, determine tracking channel in the receiver, radio-frequency module and pre-treatment mould
The working time of block in the receiver PVT resolve the module work period in accounting value.
If for example, PVT resolve output location information working frequency for 1Hz, i.e. work period be 1s, meanwhile, PVT solution
The number of satellite that calculating needs is 8.The translational speed that receiver will be taken is set to 0~1m/s and more than two threshold speed models of 1m/s
Enclose；The carrier-to-noise ratio of satellite-signal is divided into 0~24,24~36 and more than 36 3 carrier-to-noise ratio threshold ranges.
If the carrier-to-noise ratio of each tracking channel institute tracking satellite signal is more than 36 (i.e. in the carrier-to-noise ratio threshold value model more than 36
Enclose) number of satellite be more than 6 when, if the translational speed of the receiver is any value in 0~1m/s threshold speed scopes,
It is 20% to set accounting value of the working time of the receiver in PVT resolves the module work period, i.e., resolve work week in PVT
The working time of interim tracking channel, radio-frequency module and pre-processing module is 200ms (1s*20%), remaining time in closing
State, and work is circulated by the switch gap time, if in addition, the translational speed of the receiver is more than 1m/s threshold speed models
Any value in enclosing, the then working time for setting the receiver is set to 500ms；If each tracking channel institute tracking satellite signal
When carrier-to-noise ratio is more than 6 more than the number of satellite of 24 (two carrier-to-noise ratio threshold ranges i.e. in 24~36 and more than 36), if
The translational speed of the receiver is any value in 0~1m/s threshold speed scopes, then the working time for setting the receiver sets
It is 400ms, if the translational speed of the receiver is more than any value in 1m/s threshold speed scopes, sets the receiver
Working time is set to 600ms.Certainly, however it is not limited to above-mentioned dividing mode.
S130：Judge whether the receiver is collected into complete ephemeris parameter and almanac parameters.
Carrier wave, three signals layers of pseudo-code and numeric data code (also known as navigation message) are contained in the satellite-signal that receiver is received
It is secondary, wherein, receiver is contained in numeric data code and calculates the necessary information that satellite position and signal transmission time are provided, such as
Satellite ephemeris parameter, satellite health, system time, Ionospheric Parameters etc..Navigation is introduced by taking gps navigation message as an example below
The format and content of text, the navigation message form of GLONASS, Galileo and dipper system is similar.
Gps navigation message code check is 50bps, and every satellite is outwards broadcasted in units of frame.It is 1500bit per frame length,
Comprising 5 subframes, each subframe lengths is 300bit.1st subframe includes the information such as satellite clock correction parameter and health status.
Ephemeris parameter of 2nd and the 3rd subframe comprising satellite itself.Almanac parameters, ionosphere of 4th and the 5th subframe comprising all satellites
The information such as time delay correction parameter, the relation between gps time and UTC time and satellite health.4th and the 5th subframe is adopted
With the method for Fragmentation, a cycle is page 25, it is necessary to 750s could all play 25 pages.Information above
In, the 1st to 3 frame is repeated once per 30s, and its ephemeris parameter updates once every about 2h；4th and 5 subframes per 30s overturn one page,
12.5min intactly broadcasts once, then repeats, and its content only just updates after satellite injects new navigation data.
Need to defend according to being resolved to be calculated after complete ephemeris or almanac information because receiver carries out PVT computings
The position of star, and if receiver is entered into after low-power consumption mode, because its working frequency is relatively low, it is impossible to receive complete
Ephemeris parameter and almanac parameters, therefore, receiver has to wait for the complete ephemeris of acquisition and almanac parameters after positioning can just be entered
Enter low-power consumption mode.
S140：If the receiver is collected into complete ephemeris parameter and almanac parameters, control the tracking channel,
The radio-frequency module and the pre-processing module carry out satellite-signal treatment according to the accounting value corresponding working time.
Further, after receiver enters low-power consumption mode, when the ephemeris of certain satellite for being tracked reaches effective
Between after, then control the tracking channel, the radio-frequency module and the pre-processing module to be collected again according to normal working frequency
Complete ephemeris parameter, after new ephemeris parameter has been received, then according to step S140 enters low-power consumption mode again.Equally
, after the almanac of certain satellite for being tracked reaches effective time, then control the tracking channel, the radio-frequency module and institute
State pre-processing module and collect complete almanac parameters again according to normal working frequency, after new almanac parameters have been received, then
Again low-power consumption mode is entered according to step S140.
The method for reducing GNSS receiver power consumption provided in an embodiment of the present invention, translational speed and reception according to receiver
The carrier-to-noise ratio of each tracking channel institute tracking satellite signal, determines the radio frequency mould in the tracking channel and the receiver in machine
The working time of block and pre-processing module, PVT resolved accounting value in the work period in the receiver, also, in receiver
Complete ephemeris parameter and almanac parameters are collected into, then control tracking channel, radio-frequency module and pre-processing module in receiver
Satellite-signal treatment is carried out according to the accounting value corresponding working time.The embodiment of the present invention, according to the motion state of receiver
And the intensity of reception satellite-signal, PVT resolves the switch gap time of each module before module in dynamic select receiver
It is set to be worked with low-power consumption mode, meanwhile, the characteristics of renewal according to satellite ephemeris and almanac information, selective receiver enters low work(
The time of consumption pattern, to ensure that receiver is collected into newest ephemeris and almanac information, so, both ensure that PVT resolved module
The PVT precision for being calculated, and the power consumption of whole receiver is reduced as much as possible.
In recent years, the satellite in orbit disposed with the Big Dipper and Galileo system is more and more, many constellation systems it is visible
Star number mesh can reach more than 20 even more than 30, while tracking so substantial amounts of correlation operator of many satellites needs, and PVT
Resolving simultaneously need not so substantial amounts of satellite.Due to many constellation systems, each constellation is independent design, and synchronization is in phase
Multi-satellite is there may be with orientation, the satellite of these redundancies can not only bring more effective informations, also result in reception
The power consumption of machine is larger.
Based on above mentioned problem, the embodiment of the present invention additionally provides another method for reducing GNSS receiver power consumption, and Fig. 3 is
The schematic flow sheet of the method for the reduction GNSS receiver power consumption that the embodiment of the present invention two is provided.As shown in figure 3, the method includes
Following steps：
S210：Using selecting-star algorithm, participation PVT is selected in the satellite tracked from all tracking channels of the receiver
The satellite of resolving.
Wherein, the star process of specifically selecting of above-mentioned selecting-star algorithm may include steps of：
1) unsound satellite in the satellite that all tracking channels are tracked is rejected.
2) satellite of the elevation angle less than threshold value is rejected.
Receiver is resolved to after complete ephemeris or almanac information the position that can calculate satellite, according to receiver and defends
Championship puts the elevation angle and azimuth that can calculate satellite.
3) the serious satellite of multi-path influence is rejected.
4) satellite within the elevation angle and azimuth difference predetermined angle is merged, top-quality one an of stick signal is defended
Star.
5) in remaining visible satellite, it is divided into three groups of the low elevation angle, the middle elevation angle and the elevation angle high using elevation angle size, in three groups
Star is selected respectively.Two satellites of elevation angle highest and signal quality highest are selected first in elevation angle group high.Then at the low elevation angle
Difference maximum most four satellites in azimuth are selected in group.If choosing number of satellite not enough, selected in middle elevation angle group away from
Supplied from the maximum satellite of low elevation angle group Satellite azimuth difference, finally give and participate in the satellite that PVT is resolved.
Above-mentioned selecting-star algorithm is certainly not limited to, in specific implementation, other algorithms, present example can also be selected
Will not be repeated here.
S220：The tracking participated in outside the satellite correspondence tracking channel that PVT is resolved is closed in all tracking channels to lead to
Road.
The tracking channel that PVT is resolved is not involved in by closing, such GNSS receiver is only tracked and participates in PVT resolvings part
Satellite-signal, reduces tracking channel and opens quantity, and then can reduce the power consumption of GNSS receiver.
S230：Each tracking channel institute tracking satellite letter in the translational speed and the receiver of the receiver is obtained respectively
Number carrier-to-noise ratio.
S240：According to the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal, it is determined that described
The working time of radio-frequency module and pre-processing module in tracking channel and the receiver, PVT was resolved in the receiver
Accounting value in the module work period.
S250：Judge whether the receiver is collected into complete ephemeris parameter and almanac parameters.
S260：If the receiver is collected into complete ephemeris parameter and almanac parameters, control the tracking channel,
The radio-frequency module and the pre-processing module carry out satellite-signal treatment according to the accounting value corresponding working time.
S270：Judge whether to reach visible star capture time.
S280：If reaching visible star capture time, the trapping module in the receiver is controlled to carry out visible satellite
Capture.
If reaching visible star capture time, control the receiver to exit low power mode of operation, re-start visible
The capture of star.Further, in order to improve the power consumption of receiver, trapping module only searches for never visible visible satellite.
S290：According to the visible satellite that the trapping module is captured, the tracking channel in the receiver is controlled to carry out
The tracking of the visible satellite that the trapping module is captured.
According to the visible star for tracking again, step S210 is returned again to, star is selected again using selecting-star algorithm.
By the above method, can make to be arrived in recapture by the satellite that building is blocked in environment such as city " valleys "
After can participate in PVT resolving, to improve the reliability and precision of receiver.
Based on the above method, present invention also offers a kind of device for reducing GNSS receiver power consumption.Fig. 4 is real for the present invention
A kind of structural representation of the device of reduction GNSS receiver power consumption of example offer is provided.As shown in figure 4, the device includes：
Signal parameter acquisition module 41：For in the translational speed and the receiver that obtain the receiver respectively respectively with
The carrier-to-noise ratio of track passage institute tracking satellite signal.
Working time determining module 42：For according to the translational speed and each tracking channel institute tracking satellite signal
Carrier-to-noise ratio, determine the working time of radio-frequency module in the tracking channel and the receiver and pre-processing module in institute
The accounting value that PVT in receiver was resolved in the module work period is stated, wherein, the accounting value is less than or equal to 1.
Ephemeris parameter judge module 43：For judging whether the receiver is collected into complete ephemeris parameter and almanac ginseng
Number.
Low power consumption control module 44：If being collected into complete ephemeris parameter and almanac parameters for the receiver,
Control the tracking channel, the radio-frequency module and the pre-processing module is carried out according to the accounting value corresponding working time
Satellite-signal treatment.
The method and device of the reduction GNSS receiver power consumption provided based on above-described embodiment, the embodiment of the present invention is also provided
A kind of GNSS receiver, the receiver includes processor and the memory for storing processor-executable instruction, and institute
The method that processor is able to carry out reducing GNSS receiver power consumption is stated, methods described includes：
Each tracking channel institute tracking satellite signal in the translational speed and the receiver of the receiver is obtained respectively
Carrier-to-noise ratio；
According to the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal, determine that the tracking is logical
The working time of radio-frequency module and pre-processing module in road and the receiver, PVT resolved module work in the receiver
Make the accounting value in the cycle, wherein, the accounting value is less than or equal to 1；
Judge whether the receiver is collected into complete ephemeris parameter and almanac parameters；
If the receiver is collected into complete ephemeris parameter and almanac parameters, the tracking channel, described is controlled
Radio-frequency module and the pre-processing module carry out satellite-signal treatment according to the accounting value corresponding working time.
Further, the processor in the embodiment of the present invention can also include that PVT resolves module, and perform PVT computings
Journey.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.Especially for device or
For system embodiment, because it is substantially similar to embodiment of the method, so describing fairly simple, related part is referring to method
The part explanation of embodiment.Apparatus and system embodiment described above is only schematical, wherein as separation
The unit of part description can be or may not be it is physically separate, the part shown as unit can be or
Can not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Some or all of module therein is selected the need for border to realize the purpose of this embodiment scheme.Those of ordinary skill in the art
Without creative efforts, you can to understand and implement.
The above is only specific embodiment of the invention, it is noted that come for those skilled in the art
Say, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (9)
1. it is a kind of reduce GNSS receiver power consumption method, it is characterised in that including：
The load for obtaining each tracking channel institute tracking satellite signal in the translational speed and the receiver of the receiver respectively is made an uproar
Than；
According to the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal, determine the tracking channel with
And PVT resolves module work week in the receiver radio-frequency module in the receiver and the working time of pre-processing module
Interim accounting value, wherein, the accounting value is less than or equal to 1；
Judge whether the receiver is collected into complete ephemeris parameter and almanac parameters；
If the receiver is collected into complete ephemeris parameter and almanac parameters, the tracking channel, the radio frequency are controlled
Module and the pre-processing module carry out satellite-signal treatment according to the accounting value corresponding working time.
2. method according to claim 1, it is characterised in that according to the translational speed and each tracking channel institute with
The carrier-to-noise ratio of track satellite-signal, determines the work of the radio-frequency module and pre-processing module in the tracking channel and the receiver
Make the time in the receiver PVT resolve the module work period in accounting value, including：
Obtain the threshold speed scope residing for the translational speed；
The carrier-to-noise ratio for obtaining each tracking channel institute tracking satellite signal is in the classification satellite number of each carrier-to-noise ratio threshold range
Mesh；
Threshold speed scope and the classification number of satellite according to residing for the translational speed, determine the tracking channel and
The working time of radio-frequency module and pre-processing module in the receiver, PVT resolved the module work period in the receiver
In accounting value.
3. method according to claim 1, it is characterised in that methods described also includes：
Judge the ephemeris parameter whether beyond ephemeris validity；
If the fruit ephemeris parameter exceeds ephemeris validity, the tracking channel, the radio-frequency module and the preceding place are controlled
Reason module collects complete ephemeris parameter according to normal working frequency again.
4. method according to claim 1, it is characterised in that methods described also includes：
Judge the almanac parameters whether beyond the almanac term of validity；
If the fruit almanac parameters exceed the almanac term of validity, the tracking channel, the radio-frequency module and the preceding place are controlled
Reason module collects complete almanac parameters according to normal working frequency again.
5. method according to claim 1, it is characterised in that obtain the translational speed of the receiver respectively and described connect
In receipts machine before the carrier-to-noise ratio of each tracking channel institute tracking satellite signal, also include：
Using selecting-star algorithm, selected in the satellite tracked from all tracking channels of the receiver and participate in defending for PVT resolvings
Star；
The tracking channel closed in all tracking channels outside the satellite correspondence tracking channel for participating in PVT resolvings.
6. method according to claim 5, it is characterised in that close in all tracking channels and participate in what PVT was resolved
After tracking channel outside satellite correspondence tracking channel, also include：
Judge whether to reach visible star capture time；
If reaching visible star capture time, the trapping module in the receiver is controlled to carry out visible satellite capture；
According to the visible satellite that the trapping module is captured, the tracking channel in the receiver is controlled to carry out the capture mould
The tracking of the visible satellite that block is captured.
7. method according to claim 6, it is characterised in that the trapping module in the control receiver carries out visible defending
Star is captured, including：
Controlling the trapping module in the receiver carries out being changed into visible acquiring satellite from invisible.
8. it is a kind of reduce GNSS receiver power consumption device, it is characterised in that including：
Signal parameter acquisition module：For each tracking channel in the translational speed and the receiver that obtain the receiver respectively
The carrier-to-noise ratio of institute's tracking satellite signal；
Working time determining module：According to the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal,
Determine the working time of radio-frequency module in the tracking channel and the receiver and pre-processing module in the receiver
Middle PVT resolves the accounting value in the module work period, wherein, the accounting value is less than or equal to 1；
Ephemeris parameter judge module：For judging whether the receiver is collected into complete ephemeris parameter and almanac parameters；
Low power consumption control module：If being collected into complete ephemeris parameter and almanac parameters for the receiver, institute is controlled
State tracking channel, the radio-frequency module and the pre-processing module carries out satellite letter according to the accounting value corresponding working time
Number treatment.
9. a kind of GNSS receiver, it is characterised in that including：
Processor；
Memory for storing processor-executable instruction；
Wherein, the processor is configured as：
The load for obtaining each tracking channel institute tracking satellite signal in the translational speed and the receiver of the receiver respectively is made an uproar
Than；
According to the translational speed and the carrier-to-noise ratio of each tracking channel institute tracking satellite signal, determine the tracking channel with
And PVT resolves module work week in the receiver radio-frequency module in the receiver and the working time of pre-processing module
Interim accounting value, wherein, the accounting value is less than or equal to 1；
Judge whether the receiver is collected into complete ephemeris parameter and almanac parameters；
If the receiver is collected into complete ephemeris parameter and almanac parameters, the tracking channel, the radio frequency are controlled
Module and the pre-processing module carry out satellite-signal treatment according to the accounting value corresponding working time.
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| CN112929953A (en) * | 2021-02-23 | 2021-06-08 | 湖南斯北图科技有限公司 | Efficient Internet of things terminal task scheduling method |
| CN112929953B (en) * | 2021-02-23 | 2022-06-14 | 湖南斯北图科技有限公司 | Efficient Internet of things terminal task scheduling method |
| CN113328776A (en) * | 2021-04-21 | 2021-08-31 | 北京爱科迪通信技术股份有限公司 | System and method for tracking target satellite with low power consumption |
| CN113328776B (en) * | 2021-04-21 | 2022-12-02 | 北京爱科迪通信技术股份有限公司 | System and method for tracking target satellite with low power consumption |
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Application publication date: 20170616 |