CN110244334A - A kind of satellite navigation trustworthy location method of servicing - Google Patents
A kind of satellite navigation trustworthy location method of servicing Download PDFInfo
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- CN110244334A CN110244334A CN201910556172.XA CN201910556172A CN110244334A CN 110244334 A CN110244334 A CN 110244334A CN 201910556172 A CN201910556172 A CN 201910556172A CN 110244334 A CN110244334 A CN 110244334A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000002708 enhancing effect Effects 0.000 claims abstract description 30
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims 1
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- 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
The present invention relates to field of satellite navigation, disclose a kind of satellite navigation trustworthy location method of servicing, including S1: according to satellite navigation system Interface Control File layout navigation message；S2: according to customized coded format, message identification is inserted in navigation message, or insert message identification using the time gap that navigation message is broadcast；S3: according to satellite navigation system Interface Control File, generating and emit satellite navigation reception terminal institute can received satellite navigation enhancing signal.Enhance signal with the consistent navigation of real satellite navigation signal format by generating and emitting, and using in satellite navigation signals navigation message reservation and/or space bit as message identification；After navigation terminal is by receiving navigation enhancing signal, demodulating information identifies and goes out to application software, and application software decoding obtains position and/or relevant information, realizes the service function based on trustworthy location.
Description
Technical field
The present invention relates to field of satellite navigation more particularly to a kind of satellite navigation trustworthy location method of servicing.
Background technique
Using GPS, GLONASS, Beidou, Galileo as the satellite navigation system of representative, pass through middle high rail satellite launch radio frequency
Signal can provide cheap, continual positioning service in 24 hours for user, the side's aspect being deep into people's life
Face is the basic component part of smart phone and wearable device, becomes people's trip, obtains location information and based on location-based service
Basic means, user base is extremely huge.
Since the remote GNSS signal for leading to ground receiver of the distance of satellite to ground is faint, forest, building wall in valley
Under the barrier action on body or roof, further hinders or the GNSS signal that decayed also can be further when Changes in weather is severe
Weaken GNSS signal, thus indoors or in described dark room conditions or outdoors among deep mountain valleys and GNSS signal without
Method is normal or is difficult to be navigated terminal and receives, to bring not to people's lives such as activity or field exploration, traffic indoors
Just.
Based on technologies such as pseudo satellite, pseudolite enhancing, ultra wide band, bluetooths, due to needing using dedicated navigation terminal, can not with it is existing
Terminal is compatible, increases user cost, Difficulty.Therefore, the secure and trusted and controllable cost technological means of one kind is needed to solve
Certainly problem above.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of can not cover in satellite navigation system signals or signal is weaker
Satellite navigation trustworthy location method of servicing in the region of reliable location can not be provided, following technical scheme is specifically used:
A kind of satellite navigation trustworthy location method of servicing, including S1: it is navigated according to satellite navigation system Interface Control File layout
Text；S2: according to customized coded format, message identification, or benefit are inserted in the reserved bit of navigation message and/or space bit
Message identification is inserted with the time gap that navigation message is broadcast；S3: it according to satellite navigation system Interface Control File, generates concurrent
It penetrates satellite navigation and receives the received satellite navigation enhancing signal of terminal institute energy.The message identification includes the position of signal coverage areas
At least one of information needed for the attribute information of related facility, application program complete related service in confidence breath, region.
Further, in S2 step, the message identification be to the bit stream constituted after information coding by 0,1, it is described
In navigation message insert message identification include navigation message reserved bit, and/or space bit insert message identification, and/or
For the relevant bit of non-user terminal positioning time service.
Further, in S1 step, data needed for layout navigation message are by receiving real satellite navigation signal solution
It obtains after tune, or is obtained by internet.
Further, in the S3 step, the satellite navigation enhancing signal uses satellite navigation system Time and frequency standard,
Or use independent Time and frequency standard.
Further, in the S3 step, satellite navigation enhancing signal be Beidou, GPS, Galileo, GLONASS,
At least one of defined satellite navigation signals of QZSS, IRNSS, GAGAN, EGNOS, WAAS system.
Further, in the S3 step, also according to covering area range, the satellite navigation enhancing signal transmitting function is adjusted
Rate.
Further, in the S3 step, the satellite navigation enhancing signal includes one or multi-satellite signal.
It further, in the S3 step, further include to the navigation signal according to the position in the region, speed, acceleration
Degree carries out frequency and time delay adjustment.
It further, further include step S4, satellite navigation receives terminal and demodulates and export the message identification or satellite is led
Boat receives message identification described in terminal demodulation and paraphrase, the information after exporting paraphrase.
Further, further include step S5, after application software receives the message identification paraphrase, realize service function；Or
The information after paraphrase is directly received, realizes service function.
Further, in S5 step, application software is the code segment and relevant data segment run on processor.
Compared with the prior art, the advantages of the present invention are as follows:
1, the broadcast satellite navigation enhancing signal of trustworthy location method of servicing and real satellite navigation system signal format, time frequency
Rate is consistent, and has the adjusting of signal power according to location information, so that when real satellite navigation signal is weaker or no signal,
User's reception terminal unaware is switched to this trustworthy location service that receives naturally, and existing most of navigation terminal is without carrying out
Location based service can be realized in modification, fit applications software, will not increase hardware cost to user；
2, family can be used by self-defined information identification code and obtains the other information in addition to location information, such as signal broadcast
The facility attribute information in region, can provide better location based service, to improve user experience.
Detailed description of the invention
Fig. 1 is method flow schematic diagram shown in an embodiment of the present invention；
Fig. 2 (a) is a kind of embodiment schematic diagram that message identification is inserted with Beidou GEO satellite navigation message of the present invention；
Fig. 2 (b) is a kind of navigation enhancing signal text inserted after message identification with Beidou GEO satellite navigation message of the present invention
Embodiment schematic diagram.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is this
Invention a part of the embodiment, rather than whole embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
The present invention is described in further details below with reference to Figure of description and specific embodiment.This hair shown in Fig. 1
Bright method flow schematic diagram, the present invention provide a kind of satellite navigation trustworthy location method of servicing, comprising the following steps:
S1: according to satellite navigation system Interface Control File layout navigation message；
S2: according to customized coded format, message identification, or the time broadcast using navigation message are inserted in navigation message
Message identification is inserted in gap；
S3: according to satellite navigation system Interface Control File, generating and emit satellite navigation reception terminal institute can received satellite
Navigation enhancing signal.
The message identification includes the location information of signal coverage areas, the attribute information of related facility, application in region
At least one of information needed for program completes related service.
Specifically, in S2 step, message identification inserts the position of navigation message agreement, can be any of navigation message
Position, such as reserved bit and/or space bit in navigation message, the relevant bit of non-user terminal positioning time service.In not shadow
Pilot's boat system terminal receives other bits except the relevant information of positioning time service, and information mark of the invention can be written
Know, dedicated message identification can also be sent in the time slot that navigation message is broadcast, it is fixed for satellite navigation trustworthy location
Position.
In the present invention, the navigation message of message identification is had after layout, and according to satellite navigation system Interface Controller text
Part, generating and emit satellite navigation reception terminal institute can received satellite navigation enhancing signal.Family can be used by coding to obtain
The other information outside location information, such as the facility attribute information in signal broadcast region are removed, can be provided preferably based on position
The value-added service set.Consistent with true navigation system signal format satellite navigation, which can be broadcast, by this method enhances signal, existing
There is most of navigation terminal without modifying, trustworthy location signal ready to receive.Fit applications software can be realized based on position
The service set will not increase hardware cost to user.
In the present embodiment, the invention also includes step S4, the satellite navigation reception terminal demodulation message identification is simultaneously defeated
Information out, satellite navigation, which receives terminal, can directly receive the message identification demodulated in satellite navigation enhancing signal, and spue
Output information, receiving terminal in existing most of satellite navigation substantially can be directly realized by, it is not necessary to modify the software and hardware of terminal,
To realize trustworthy location service for user.
Further, in step s 4, satellite navigation receives terminal and will demodulate after the message identification paraphrase and export letter
Breath, message identification can be explained and be annotated, i.e., paraphrase obtained user needed for trustworthy location information.
In another embodiment, in the trustworthy location method of servicing, application software receives the output information and realizes
Corresponding function carries out Personalized service especially for location information.
In another embodiment, in S1 step, raw information needed for layout navigation message is by receiving real satellite
It obtains after navigation signal demodulation, or is obtained by internet.
In the present embodiment, in S2 step, the message identification is to the bit constituted after navigation message coding by 0,1
Stream.For example, the message identification can be correlation in the more specific location information of signal coverage areas, such as coordinate value and/or region
The attribute information of facility, such as the position KFC are that have XX-KFC in some market, market, may only provide the XX-KFC,
Can also be with location information in conjunction with the attribute information of the region related facility, such as push provides the XX-KFC business hours, dish
The location value added services such as single；, also either one of both, attribute information are treated as being interpreted as including but are not limited to above-mentioned representative letter
Breath can determine that the encoded information is identified according to the personalized customization in the regions such as market.In the present embodiment, satellite navigation
Information required for obtaining after the bit stream decoding that terminal or application software are constituted to 0,1, message identification can be signal covering
The attribute information of related facility in the location information in region and/or region, but it is not limited only to above- mentioned information.
In the present embodiment: in the S3 step, the satellite navigation enhancing signal uses satellite navigation system temporal frequency
Benchmark, or use independent Time and frequency standard.It is when the satellite navigation enhancing signal broadcast uses to navigate with real satellite
It unites consistent Time and frequency standard, user may be implemented from navigation signal good area to the seamless of non-navigational signal coverage areas
Navigation.When using independent Time and frequency standard, then it can according to need, choose whether same according to external satellite navigation system
Step, to guarantee that the location-based service without the time difference of user can be provided at any time.
In the present embodiment, in the S3 step, satellite navigation enhancing signal be Beidou, GPS, Galileo,
At least one of defined satellite navigation signals of GLONASS, QZSS, IRNSS, GAGAN, EGNOS, WAAS system.Such as it is raw
At satellite navigation enhance signal before, can arbitrarily select Beidou, GPS, Galileo, GLONASS, QZSS, IRNSS, GAGAN,
Any one or more combination computer sim- ulation data of EGNOS, WAAS, thus the M main baseband signals in signal regeneration system
Unit generates M*N any GNSS signals, i.e. any one GNSS signal can choose multiple channel parallels and independently export, with full
The needs of the multiple system signal transmittings of foot, it is whole to be able to satisfy the vehicle mounted guidance equipped with any system of GPS, BD, GLONASS, GALILEO
End can be carried out continuous navigation under any indoor environment, and position blind area and dead zone is not present.
Further, in the present embodiment, in the S3 step, the satellite navigation enhancing signal includes one or more and defends
Star signal, the present invention in message identification can be used in combination with one or multi-satellite signal.
In the present embodiment, in the S3 step, also according to covering area range, the satellite navigation enhancing signal hair is adjusted
Power is penetrated, to meet the needs of covering area range.Certainly, the present embodiment also passes through the function for adjusting satellite navigation enhancing signal
Rate in indoor environment biggish for area, increases satellite with the power for the signal broadcast that increases or decay before signal broadcast
Navigation enhancing signal power, provides effective satellite navigation and positioning guarantee, satellite navigation will not be caused to receive eventually because of weak output signal
The problem of end can not receive；When carrying out single customization service for multiple subregions under the same indoor environment, each region
Different satellite navigation enhancing signals is broadcast, different enhancing signals includes different identification information, then needs to broadcast in signal
Satellite navigation is reduced before hair enhances signal power, so that the signal of each subregion is not interfere with each other.
It in the present embodiment, in the S3 step, further include enhancing the satellite navigation position of the signal according to the region
Set, speed, acceleration carries out frequency and time delay adjustment, to guarantee and the consistency of real satellite navigation signal, it is further provided
Give user believable location-based service.
In the present embodiment, the locally stored database of data dictionary required for decoding or cloud, can pass through interconnection
Net is obtained in real time.
In the present embodiment, in S5 step, application software is the code segment and relevant number run on processor
According to section, location value added service to user may be implemented by carrying out relevant modification to trustworthy location information.
In the present embodiment, by taking Beidou GEO satellite navigation message inserts message identification as an example, as shown in Figure 2.Fig. 2 (a) is
The definition of 1 page of practical Beidou GEO navigation message subframe, 1 format, total 300bit only defines high 150bit, and low 150bit is
Space bit；Fig. 2 (b) inserts the navigation enhancing signal text after message identification, and high 150bit and true navigation message are completely the same,
151st ~ 172 bit is custom information mark, and P is 8 bit error-correcting codes.User terminal receives navigation enhancing signal and demodulates
After message identification, relevant information can be obtained according to user dictionary, the believable position of satellite navigation be obtained, to obtain others
Location-based service；The modification filling information mark in the relevant bit of non-user terminal positioning time service in existing navigation message
Know.Satellite navigation receives terminal and receives the satellite navigation enhancing signal demodulation navigation message acquisition message identification, so as to
The service in all directions of trustworthy location is realized in terms of the application software of user terminal:
1, the broadcast satellite navigation enhancing signal of trustworthy location method of servicing and real satellite navigation system signal format, time frequency
Rate is consistent, and has the adjusting of signal power according to location information, so that when real satellite navigation signal is weaker or no signal,
User's reception terminal unaware is switched to this trustworthy location service that receives naturally, and existing most of navigation terminal is without carrying out
Location based service can be realized in modification, fit applications software, will not increase hardware cost to user；
2, family can be used by self-defined information identification code and obtains the other information in addition to location information, such as signal broadcast
The facility attribute information in region, can provide better location based service, to improve user experience.
Although the present invention is disclosed as above with preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (11)
1. a kind of satellite navigation trustworthy location method of servicing, it is characterised in that: the following steps are included:
S1: according to satellite navigation system Interface Control File layout navigation message；
S2: according to customized coded format, message identification is inserted in navigation message, or empty using the time that navigation message is broadcast
Gap inserts message identification；
S3: according to satellite navigation system Interface Control File, generating and emit satellite navigation reception terminal institute can received satellite
Navigation enhancing signal；
The message identification includes the location information of signal coverage areas, the attribute information of related facility, application program in region
At least one of information needed for completing related service.
2. trustworthy location method of servicing according to claim 1, it is characterised in that: in S2 step, the message identification
It is to the bit stream constituted after information coding by 0,1, described in navigation message filling message identification includes the guarantor in navigation message
Position, and/or space bit is stayed to insert message identification, and/or for the relevant bit of non-user terminal positioning time service.
3. trustworthy location method of servicing according to claim 2, it is characterised in that: in S1 step, layout navigation message
Required data obtain after being demodulated by reception real satellite navigation signal, or pass through internet and obtain.
4. trustworthy location method of servicing according to claim 3, it is characterised in that: in the S3 step, the satellite navigation
Enhance signal and use satellite navigation system Time and frequency standard, or uses independent Time and frequency standard.
5. trustworthy location method of servicing according to claim 4, it is characterised in that: in the S3 step, the satellite navigation
Enhance signal and satellite is defined by Beidou, GPS, Galileo, GLONASS, QZSS, IRNSS, GAGAN, EGNOS, WAAS system
At least one of navigation signal.
6. trustworthy location method of servicing according to claim 5, it is characterised in that: in the S3 step, also according to the area of coverage
Domain range adjusts the satellite navigation enhancing signal transmission power.
7. trustworthy location method of servicing according to claim 6, it is characterised in that: in the S3 step, the satellite navigation
Enhancing signal includes one or multi-satellite signal.
8. trustworthy location method of servicing according to claim 7, it is characterised in that: further include to described in the S3 step
Navigation signal carries out frequency and time delay adjustment according to the position in the region, speed, acceleration.
9. according to claim 1 to trustworthy location method of servicing described in 8 any one, it is characterised in that: it further include step S4,
Satellite navigation receives terminal and demodulates and export information mark described in the message identification or satellite navigation reception terminal demodulation and paraphrase
Know, the information after exporting paraphrase.
10. trustworthy location method of servicing according to claim 9, it is characterised in that: further include step S5, application software connects
After receiving the message identification paraphrase, service function is realized；Or the information after paraphrase is directly received, realize service function.
11. trustworthy location method of servicing according to claim 10, it is characterised in that: in S5 step, application software is
Run on the code segment and relevant data segment on processor.
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| CN112147649A (en) * | 2020-11-26 | 2020-12-29 | 辽宁天衡智通防务科技有限公司长沙分公司 | Elastic filtering method and device for satellite navigation signals |
| CN115575991A (en) * | 2022-11-11 | 2023-01-06 | 北京航天长城卫星导航科技有限公司 | Satellite navigation credible position service method |
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