CN105676242B - A kind of Satellite Navigation Set and its low-power consumption treatment method - Google Patents
A kind of Satellite Navigation Set and its low-power consumption treatment method Download PDFInfo
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- CN105676242B CN105676242B CN201610235434.9A CN201610235434A CN105676242B CN 105676242 B CN105676242 B CN 105676242B CN 201610235434 A CN201610235434 A CN 201610235434A CN 105676242 B CN105676242 B CN 105676242B
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- power consumption
- low
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- hardware
- satellite navigation
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/34—Power consumption
-
- 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
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/37—Hardware or software details of the signal processing chain
Abstract
The embodiment of the present invention provides a kind of Satellite Navigation Set and its low-power consumption treatment method, and wherein device includes: RF hardware；Base-Band Processing hardware, including baseband signal processing unit and CPU element, the CPU element further includes power consumption control unit, low-power consumption mode of the power consumption control unit for Satellite Navigation Set makes to can control, when entering low-power consumption mode, RF hardware and baseband signal processing unit are closed, and CPU element is in discontinuous operation state；When exiting low-power consumption mode, RF hardware and baseband signal processing unit are opened, and CPU element is in normal operating conditions.The embodiment of the present invention can reduce the operating power consumption of Satellite Navigation Set under the premise of guaranteeing that Satellite Navigation Set is high performance.
Description
Technical field
The present embodiments relate at technical field of satellite navigation more particularly to a kind of Satellite Navigation Set and its low-power consumption
Reason method.
Background technique
Satellite Navigation Technique is the popular domain that each spacefaring nation competitively develops, in order to keep navigation system advance and
Validity, countries in the world energetically promote and develop in terms of satellite navigation system the relevant technologies.Currently, can provide in the world
There are mainly four types of the communication systems of precise satellite positioning and navigation, respectively global positioning system (GPS, the Global in the U.S.
Positioning System), GLONASS (GLONASS) positioning system of Russia, the Galileo (GALILEO) in Europe it is fixed
The BEI-DOU position system (BDS, BeiDou Navigation Satellite System) of position system and China.
Satellite navigation application industry plays increasingly important role in national economy, and satellite navigation can be more than enough
System compatible is simultaneously deposited and is merged with mobile communication, so that system availability is improved, thus application field is boundless,
Such as all various aspects such as be related to aviation, sea route, railway, building, telecommunications, electric power.
Satellite navigation usually consists of three parts: space constellation part, ground monitoring part and customer equipment part composition.
Satellite navigation receiver is the core of User Part, be satellite navigation system and user interface and market scale maximum and
The most important link of industrialization, it may be said that the value of satellite navigation application is finally necessarily received by user using satellite navigation
Machine can be just achieved.
Although Satellite Navigation Set, such as satellite navigation receiver increasingly incorporate our life, current satellite
Influence of the navigation device due to having ignored power consumption under the premise of pursuing high performance, power problems have become obstruction satellite navigation
The widely applied matter of utmost importance of device, significantly limits the application space of Satellite Navigation Set.
Summary of the invention
The embodiment of the invention provides a kind of Satellite Navigation Set and its power consumption processing methods, can guarantee satellite navigation
Under the premise of device is high performance, the operating power consumption of Satellite Navigation Set is reduced.
The embodiment of the invention provides a kind of low-power consumption Satellite Navigation Sets, comprising: RF hardware, for being led received
The tracking signal frequency conversion of boat satellite is to intermediate frequency, by the digital sample of analog signal, exports intermediate frequency digital to Base-Band Processing hardware
Signal；Base-Band Processing hardware, including baseband signal processing unit and CPU element, wherein the baseband signal processing unit is used for
Capture, tracking and the text decoding of digital intermediate frequency signal；The CPU element is used to be responsible for the software tune of baseband signal processing unit
Degree, the position of Satellite Navigation Set, the positioning calculation of time and speed and exports positioning result by Peripheral Interface；It is described
CPU element further includes power consumption control unit, and the power consumption control unit is used for the enabled of the low-power consumption mode of Satellite Navigation Set
Control closes RF hardware and baseband signal processing unit when entering low-power consumption mode, and by CPU element be between knock off
Make state；When exiting low-power consumption mode, RF hardware and baseband signal processing unit are opened, and CPU element is in normal
Working condition.
Further, the power consumption control unit include monitoring module, radio frequency control module, Base-Band Processing control module,
CPU control module and base band satellite information prediction module, wherein monitoring module, for monitoring Satellite Navigation Set each section
Working condition, and enter or exit low-power consumption mode according to monitoring situation starting power consumption control unit；Radio frequency control module is used for
When entering low-power consumption mode, RF hardware is closed, when exiting low-power consumption mode, opens RF hardware；Base-Band Processing control
Module, when exiting low-power consumption mode, opens base band for closing baseband signal processing unit when entering low-power consumption mode
Signal processing unit；CPU control module is in discontinuous operation state for when entering low-power consumption mode, controlling CPU element,
When exiting low-power consumption mode, control CPU element is in normal mode of operation；Base band satellite information prediction module, for predicting
Low-power consumption working time and normal working hours
Further, after the power consumption control unit enters low-power consumption mode, the signal of signal is tracked according to navigation satellite
The low-power consumption working time of information and signal prediction of strength Satellite Navigation Set；Within the low-power consumption working time, closing is penetrated
Frequency hardware and baseband signal processing unit, control CPU element are in discontinuous operation state, the prediction of base band satellite information prediction module
The tracking information of satellite-signal and position, time and the speed positioning calculation for carrying out Satellite Navigation Set, by the pre- of positioning result
Measured value is stored in the memory of Satellite Navigation Set.
Further, after the power consumption control unit exits low-power consumption mode, according to the prediction of positioning result in memory
The normal working hours of value, the signal message of navigation satellite tracking signal and signal strength prediction Satellite Navigation Set；Described
In normal working hours, RF hardware and baseband signal processing unit are opened, control CPU element is in normal operating conditions, root
Positioning result is exported according to the tracking signal of the navigation satellite received.
The embodiment of the invention also provides a kind of low-power consumption treatment methods of Satellite Navigation Set, comprising: RF hardware will
The tracking signal frequency conversion of the navigation satellite received is to intermediate frequency, and by the digital sample of analog signal, to Base-Band Processing hardware
Export digital intermediate frequency signal；Capture, tracking of the baseband signal processing unit of Base-Band Processing hardware to the digital intermediate frequency signal
With text decode, CPU element to baseband signal processing unit carry out software scheduling, and carry out Satellite Navigation Set position, when
Between and speed positioning calculation, and positioning result is exported by Peripheral Interface；Wherein the power consumption control unit in CPU element carries out
The low-power consumption mode of Satellite Navigation Set makes can control, and when entering low-power consumption mode, closes RF hardware and baseband signal
Processing unit, and CPU element is in discontinuous operation state；When exiting low-power consumption mode, RF hardware and base band letter are opened
Number processing unit, and CPU element is in normal operating conditions.
Further, the low-power consumption monitoring modular of the power consumption control unit monitors Satellite Navigation Set each section in real time
Working condition, and enter or exit low-power consumption mode according to monitoring situation starting power consumption control unit.
When further, into the low-power consumption mode, the base band satellite information prediction module of power consumption control unit according to
Navigation satellite tracks the signal message of signal and the low-power consumption working time of signal strength prediction Satellite Navigation Set；Described low
In the power consumption working time, RF hardware and baseband signal processing unit are closed, control CPU element is in discontinuous operation state, base
The tracking information of satellite-signal is predicted with satellite information prediction module and position, time and the speed for carrying out Satellite Navigation Set are fixed
Position resolves, and the predicted value of positioning result is stored in the memory of Satellite Navigation Set.
Further, after the power consumption control unit exits low-power consumption mode, according to the prediction of positioning result in memory
The normal working hours of value, the signal message of navigation satellite tracking signal and signal strength prediction Satellite Navigation Set；Described
In normal working hours, RF hardware and baseband signal processing unit are opened, control CPU element is in normal operating conditions, root
Positioning result is exported according to the tracking signal of the navigation satellite received.
Satellite Navigation Set and its low-power consumption treatment method provided in an embodiment of the present invention are navigated by the control of intelligence and are filled
The low-power mechanism set reaches the demand for reducing overall power consumption, under the premise of guaranteeing that Satellite Navigation Set is high performance, greatly
The operating power consumption of navigation device is reduced, is laid a good foundation for the extensive use and popularization of Satellite Navigation Set.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of invention technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the structural schematic diagram of low-power consumption Satellite Navigation Set in the embodiment of the present invention；
Fig. 2 is the flow diagram of the low-power consumption treatment method of Satellite of embodiment of the present invention navigation device.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the present invention
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Fig. 1 is the structural schematic diagram of low-power consumption Satellite Navigation Set in the embodiment of the present invention, as shown in Figure 1, the satellite is led
The device that navigates includes RF hardware 11, Base-Band Processing hardware 12 and Peripheral Interface 13.
Wherein,
RF hardware 11, for the tracking signal frequency conversion of the received navigation satellite of antenna to intermediate frequency, then to be passed through simulation
The digital sample of signal exports digital intermediate frequency signal to Base-Band Processing hardware 12；
Base-Band Processing hardware 12, including baseband signal processing unit 13 and CPU element 14；
Capture, tracking and text decoding of the baseband signal processing unit 13 for digital intermediate frequency signal；
CPU element 14 is used to be responsible for the software scheduling of baseband signal processing unit, the position of Satellite Navigation Set, the time and
The positioning calculation of speed and the correspondence with foreign country for controlling Peripheral Interface；
In addition, CPU element 14 further includes power consumption control unit 15, the power consumption control unit 15 is for Satellite Navigation Set
Low-power consumption mode makes can control.
Peripheral Interface 16 exports positioning result for being communicated with upper layer application device.
It is worth noting that the processing power consumption of RF hardware 11 and Base-Band Processing hardware 12 accounts for navigation device total power consumption
90% or more, therefore, it is compared to the prior art, the present invention increases power consumption control unit 15 in CPU element 122, the function
The switch working sequence that control unit 15 passes through intelligent control RF hardware 11 and Base-Band Processing hardware 12 is consumed, can effectively be dropped
The disposed of in its entirety power consumption of low navigation device.
It needs to be described in detail, power consumption control unit includes monitoring module, radio frequency control module, Base-Band Processing control mould
Block, base band satellite information prediction module and CPU control module.
Wherein,
Monitoring module, for monitoring the working condition of each section software and hardware, therefore, it is determined that whether entering or exiting low-power consumption
Mode.
Radio frequency control module, for cut-offfing by radio frequency interface protocol integrated test system RF hardware, after radio frequency is closed, radio frequency
Hardware circuit is in sleep state, and power consumption only concentrates on small leakage current.
Base-Band Processing control module cut-offs Base-Band Processing hardware for orderly, reduces it and handles power consumption.
Base band satellite information prediction module, for predicting Base-Band Processing hardware by closing to the satellite-signal of start-up time
The position and speed of tracking information and navigation device calculates, ensure that RF hardware and baseband processing unit closing, open state
The continuity of signal processing after switching.
CPU control module enters low-power consumption tupe for being responsible for enabled CPU, when RF hardware and Base-Band Processing list
After member closes sleep, the software processing load reduction of CPU element reduces CPU's so that CPU be made to be in discontinuous operation state
Operating power consumption.
Fig. 2 is the flow diagram of the power consumption processing method of Satellite of embodiment of the present invention navigation device, as shown in Fig. 2,
This method is applied on foregoing Satellite Navigation Set, comprising:
Step 21, RF hardware and passes through analog signal by the tracking signal frequency conversion of the navigation satellite received to intermediate frequency
Digital sample, to Base-Band Processing hardware export digital intermediate frequency signal；
Step 22, the baseband signal processing unit of Base-Band Processing hardware to the capture of the digital intermediate frequency signal, tracking and
Text decoding, CPU element carries out software scheduling to baseband signal processing unit, and carries out the position of Satellite Navigation Set, time
With the positioning calculation of speed, and positioning result is exported by Peripheral Interface；
Step 23, power consumption control unit in CPU element, which carries out the low-power consumption mode of Satellite Navigation Set, makes can control,
When entering low-power consumption mode, RF hardware and baseband signal processing unit are closed, and CPU element is in discontinuous operation shape
State；When exiting low-power consumption mode, RF hardware and baseband signal processing unit are opened, and CPU element is in and is worked normally
State.
Specifically,
The working condition of low-power consumption monitoring modular real time monitoring Satellite Navigation Set each section of power consumption control unit, and root
Enter or exit low-power consumption mode according to monitoring situation starting power consumption control unit.
When into the low-power consumption mode, the base band satellite information prediction module of power consumption control unit according to navigation satellite with
The low-power consumption working time of signal message and signal strength the prediction Satellite Navigation Set of track signal；In low-power consumption work
In, RF hardware and baseband signal processing unit are closed, control CPU element is in discontinuous operation state, base band satellite information
The tracking information of prediction module prediction satellite-signal and position, time and the speed positioning calculation for carrying out Satellite Navigation Set, will
The predicted value of positioning result is stored in the memory of Satellite Navigation Set, to ensure that RF hardware and baseband processing unit close
Close, open state switching after signal processing continuity.
After the power consumption control unit exits low-power consumption mode, defended according to the predicted value of positioning result, navigation in memory
Star tracks the signal message of signal and the normal working hours of signal strength prediction Satellite Navigation Set；In the normal work
In, RF hardware and baseband signal processing unit are opened, control CPU element is in normal operating conditions, according to what is received
The tracking signal of navigation satellite exports positioning result.
Sequence navigation satellite device normally handles satellite navigation signals according to this, to realize Satellite Navigation Set low
High performance work under power consumption mode.
Satellite Navigation Set and its low-power consumption treatment method provided in an embodiment of the present invention are navigated by the control of intelligence and are filled
The low-power mechanism set reaches the demand for reducing overall power consumption, under the premise of guaranteeing that Satellite Navigation Set is high performance, greatly
The operating power consumption of navigation device is reduced, is laid a good foundation for the extensive use and popularization of Satellite Navigation Set.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. a kind of low-power consumption Satellite Navigation Set characterized by comprising
RF hardware, for by the tracking signal frequency conversion of received navigation satellite to intermediate frequency, by the digital sample of analog signal,
Digital intermediate frequency signal is exported to Base-Band Processing hardware；
Base-Band Processing hardware, including baseband signal processing unit and CPU element, wherein the baseband signal processing unit is used for
Capture, tracking and the text decoding of digital intermediate frequency signal；The CPU element is used to be responsible for the software tune of baseband signal processing unit
Degree, the position of Satellite Navigation Set, the positioning calculation of time and speed and exports positioning result by Peripheral Interface；
The CPU element further includes power consumption control unit, and the power consumption control unit is used for the low-power consumption mould of Satellite Navigation Set
Formula makes can control, and when entering low-power consumption mode, closes RF hardware and baseband signal processing unit, and will be at CPU element
In discontinuous operation state；When exiting low-power consumption mode, RF hardware and baseband signal processing unit are opened, and by CPU element
In normal operating conditions；
It is strong according to the signal message of navigation satellite tracking signal and signal after the power consumption control unit enters low-power consumption mode
The low-power consumption working time of degree prediction Satellite Navigation Set；
Within the low-power consumption working time, RF hardware and baseband signal processing unit are closed, control CPU element is in interval
Working condition, base band satellite information prediction module prediction satellite-signal tracking information and carry out Satellite Navigation Set position,
Time and speed positioning calculation, the predicted value of positioning result is stored in the memory of Satellite Navigation Set.
2. low-power consumption Satellite Navigation Set according to claim 1, which is characterized in that the power consumption control unit includes prison
Control module, radio frequency control module, Base-Band Processing control module, CPU control module and base band satellite information prediction module, wherein
Monitoring module starts power consumption control for monitoring the working condition of Satellite Navigation Set each section, and according to monitoring situation
Unit enters or exits low-power consumption mode；
Radio frequency control module, when exiting low-power consumption mode, is opened for closing RF hardware when entering low-power consumption mode
RF hardware；
Base-Band Processing control module, for baseband signal processing unit being closed, when exiting low-power consumption when entering low-power consumption mode
When mode, baseband signal processing unit is opened；
CPU control module, for when entering low-power consumption mode, control CPU element to be in discontinuous operation state, when exiting low function
When consumption mode, control CPU element is in normal mode of operation；
Base band satellite information prediction module, for predicting low-power consumption working time and normal working hours.
3. low-power consumption Satellite Navigation Set according to claim 1, which is characterized in that when the power consumption control unit exits
After low-power consumption mode, the signal message and signal strength of signal are tracked according to the predicted value of positioning result, navigation satellite in memory
Predict the normal working hours of Satellite Navigation Set；
Within the normal working hours, RF hardware and baseband signal processing unit are opened, control CPU element is in normal work
Make state, positioning result is exported according to the tracking signal of the navigation satellite received.
4. a kind of low-power consumption treatment method of Satellite Navigation Set characterized by comprising
RF hardware by the tracking signal frequency conversion of the navigation satellite received to intermediate frequency, and by the digital sample of analog signal,
Digital intermediate frequency signal is exported to Base-Band Processing hardware；
The baseband signal processing unit of Base-Band Processing hardware decodes the capture, tracking and text of the digital intermediate frequency signal, CPU
Unit carries out software scheduling to baseband signal processing unit, and carries out the position of Satellite Navigation Set, the positioning of time and speed
It resolves, and positioning result is exported by Peripheral Interface；
Wherein power consumption control unit in CPU element, which carries out the low-power consumption mode of Satellite Navigation Set, makes can control, and works as entrance
When low-power consumption mode, RF hardware and baseband signal processing unit are closed, and CPU element is in discontinuous operation state；When moving back
Out when low-power consumption mode, RF hardware and baseband signal processing unit are opened, and CPU element is in normal operating conditions；
When into the low-power consumption mode, the base band satellite information prediction module of power consumption control unit is tracked according to navigation satellite to be believed
Number signal message and signal strength prediction Satellite Navigation Set the low-power consumption working time；
Within the low-power consumption working time, RF hardware and baseband signal processing unit are closed, control CPU element is in interval
Working condition, base band satellite information prediction module prediction satellite-signal tracking information and carry out Satellite Navigation Set position,
Time and speed positioning calculation, the predicted value of positioning result is stored in the memory of Satellite Navigation Set.
5. the low-power consumption treatment method of Satellite Navigation Set according to claim 4, which is characterized in that the power consumption control
The working condition of low-power consumption monitoring modular real time monitoring Satellite Navigation Set each section of unit, and function is started according to monitoring situation
Consumption control unit enters or exits low-power consumption mode.
6. the low-power consumption treatment method of Satellite Navigation Set according to claim 4, which is characterized in that when the power consumption control
After unit processed exits low-power consumption mode, the signal message of signal is tracked according to the predicted value of positioning result, navigation satellite in memory
With the normal working hours of signal strength prediction Satellite Navigation Set；
Within the normal working hours, RF hardware and baseband signal processing unit are opened, control CPU element is in normal work
Make state, positioning result is exported according to the tracking signal of the navigation satellite received.
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| CN109496275A (en) * | 2017-12-18 | 2019-03-19 | 深圳市大疆创新科技有限公司 | The control method and moveable platform of moveable platform |
| CN108802774A (en) * | 2018-05-30 | 2018-11-13 | 北京航空航天大学 | A kind of GPS navigation baseband system grade chip |
| CN110398757A (en) * | 2019-07-31 | 2019-11-01 | 杭州中科微电子有限公司 | A kind of low-power consumption satellite positioning method and the internet of things equipment using this method |
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| CN2800292Y (en) * | 2003-12-22 | 2006-07-26 | 李剑 | Terminal client for BeiDou navigation positioning system |
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