CN106101209A - A kind of difference Platform Server network architecture method to set up based on grid - Google Patents

A kind of difference Platform Server network architecture method to set up based on grid Download PDF

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Publication number
CN106101209A
CN106101209A CN201610403174.1A CN201610403174A CN106101209A CN 106101209 A CN106101209 A CN 106101209A CN 201610403174 A CN201610403174 A CN 201610403174A CN 106101209 A CN106101209 A CN 106101209A
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China
Prior art keywords
grid
numbering
latitude
longitude
grid points
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CN201610403174.1A
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CN106101209B (en
Inventor
王胜利
叶平
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SHANDONG TIANXING BEIDOU INFORMATION TECHNOLOGY Co Ltd
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SHANDONG TIANXING BEIDOU INFORMATION TECHNOLOGY Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • 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
    • G01S19/40—Correcting position, velocity or attitude
    • G01S19/41—Differential correction, e.g. DGPS [differential GPS]
    • 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)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The invention discloses a kind of difference Platform Server network architecture method to set up based on grid, solve large user in following hi-Fix and measure high concurrent problem.Using strategy based on virtual grid, according to distance or area, reference station region is divided into some grid, the present invention carries out the setting of differential server according to grid.According to mesh region segmentation service device, receive the grid virtual data of data processing centre for each region configuration one or number station server, the virtual data of reception is handed down to terminal and carries out Differential positioning.Only need to be further added by an identical server when certain station server reaches load, by that analogy, provide the solution of high efficient and reliable for the high concurrent hi-Fix service of following large user.

Description

A kind of difference Platform Server network architecture method to set up based on grid
Technical field
The present invention relates to field of satellite location, particularly relate to satellite fix application in large user's height concurrency positions.
Background technology
Pseudo range difference localization method based on virtual grid, uses pseudo range difference positioning strategy based on grid, by reference Region of standing is divided into some grids according to distance or area, and uses the dummy observation of interpolation method interpolation grid points.So The rough coordinates that rear data processing centre uploads according to user, the mesh point that chosen distance user terminal is nearest, by this mesh point Dummy observation is sent to user, carries out pseudo range difference location.Due to the framework problem of server in tradition GNSS location, cause There is serious restriction in the terminal quantity that server can access, typically only has access hundred terminals, and the terminal of server accesses number Amount cannot be satisfied with the requirement of the high concurrent hi-Fix of following large user.
Summary of the invention
Goal of the invention: for above-mentioned prior art, proposes a kind of difference Platform Server network architecture based on grid and sets Put method, solve the problem that in following hi-Fix, large user's caused high server access terminal limits.
Technical scheme: a kind of difference Platform Server network architecture method to set up based on grid, comprises the steps:
Step 1), first, by whole regional according to longitude step-length l0, latitude step-length b0Carry out dividing grid；Then, According to geographic area by grid partition subregion, configure one or several difference Platform Servers for every sub regions；At data The dummy observation of each grid points in grid described in reason center calculation, and it is issued to the difference Platform Server of correspondence；
Step 2), described difference Platform Server is according to its unique number in grid of arbitrary grid points calculation of longitude & latitude N1:
First, it is calculated grid points longitude numbering N in grid according to formula (1), (2)lWith latitude numbering Nb:
Nl=(L-[L]) * 4+ [L] * 10 (1)
Nb=(B-[B]) * 4+ [B] * 10 (2)
Wherein, L is the longitude of grid points, and B is the latitude of grid points, and [] is for rounding symbol；
Then, according to described longitude numbering NlWith latitude numbering NbIt is calculated grid points numbering N in grid1:
N1=NlNb (3)
Step 3), the dummy observation of each grid points is stored according to the numbering of grid points；
Step 4), difference Platform Server gateway is set, according to its unique in described grid of access terminal position calculation Numbering N2:
First, it is calculated access terminal longitude numbering N ' in grid according to formula (4), (5)lWith latitude numbering N 'b:
N′l=(L '-[L ']) * 4+ [L '] * 10 (4)
N′b=(B '-[B ']) * 4+ [B '] * 10 (5)
Wherein, the longitude that L ' is access terminal, the latitude that B ' is access terminal, [] is for rounding symbol；
Then, according to described longitude numbering N 'lWith latitude numbering N 'bIt is calculated grid points numbering N in grid2:
N2=N 'lN′b(6)；
When the full load of described difference Platform Server is run, new terminal will access newly-increased difference platform service Device；
Step 5), will be with described numbering N2Identical numbering N1The dummy observation of corresponding grid points sends to accessing end End, carries out Differential positioning.
Further, described step 1) in, when dividing grid, if initial latitude B0=4, maximum latitude BM=54, if initial Longitude L0=73, maximum longitude LM=175, longitude step-length b0Take 0.25, latitude step-length l0Take 0.25.
Further, described step 2) comprise the steps:
First, it is calculated grid points longitude numbering N in grid according to formula (1), (2)lWith latitude numbering Nb:
Nl=(L-[L]) * 4+ [L] * 10 (1)
Nb=(B-[B]) * 4+ [B] * 10 (2)
Wherein, L is the longitude of grid points, and B is the latitude of grid points, and [] is for rounding symbol；
Then, according to described longitude numbering NlWith latitude numbering NbIt is calculated grid points numbering N in grid1:
N1=NlNb (3)。
Further, described step 4) comprise the steps:
First, it is calculated access terminal longitude numbering N ' in grid according to formula (4), (5)lWith latitude numbering N 'b:
N′l=(L '-[L ']) * 4+ [L '] * 10 (4)
N′b=(B '-[B ']) * 4+ [B '] * 10 (5)
Wherein, the longitude that L ' is access terminal, the latitude that B ' is access terminal, [] is for rounding symbol；
Then, according to described longitude numbering N 'lWith latitude numbering N 'bIt is calculated grid points numbering N in grid2:
N2=N 'lN′b (6)。
Beneficial effect: a kind of based on grid the difference Platform Server network architecture method to set up of the present invention, user Access and do not limit in quantity, only need to increase an identical server when a station server reaches load and can solve to ask Topic, by that analogy, the access capability of platform can reach million or even ten million user, fully meets high concurrent the wanting of following large user Ask.
Accompanying drawing explanation
Fig. 1 is the structural representation that the difference Platform Server network architecture based on grid is arranged.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is done and further explain.
A kind of difference Platform Server network architecture method to set up based on grid, comprises the steps:
Step 1), by whole regional according to longitude step-length l0, latitude step-length b0Carry out dividing grid, regional Longitude range is: 73 ° 33 ' 175 ° 05 ', and latitude scope is 3 ° 51 ' 53 ° 33 ', if dividing the initial latitude B of grid0=4, Maximum latitude BM=54, then China's leap on latitude is Bd=50；If dividing the initial longitude L of grid0=73, maximum warp Degree LM=175, then China's leap on longitude is Ld=52；In the present embodiment, longitude step-length b0Take 0.25, latitude step-length l0 Take 0.25.Then, according to geographic area by grid partition subregion；In the present embodiment, by province to grid partition subregion, with As a example by Shandong Province, this grid corresponding to area of province is a sub regions, sets up the grid differential service platform of Shandong Province, should One or several difference Platform Servers of configuration in grid differential service platform, store the grid of the grid points that this subregion covers The dummy observation of point, and carry out access and the management of terminal and issue virtual observation Value Data to terminal.
Step 2), difference Platform Server is according to its unique number N in grid of arbitrary grid points calculation of longitude & latitude1, tool Body is:
First, it is calculated grid points longitude numbering N in grid according to formula (1), (2)lWith latitude numbering Nb:
Nl=(L-[L]) * 4+ [L] * 10 (1)
Nb=(B-[B]) * 4+ [B] * 10 (2)
Wherein, L is the longitude of grid points, and B is the latitude of grid points, and [] is for rounding symbol.
Then, according to longitude numbering NlWith latitude numbering NbIt is calculated grid points numbering N in grid1:
N1=NlNb (3)。
Step 3), the dummy observation of each grid points is stored according to the numbering of grid points.
Step 4), difference Platform Server gateway is set, according to its unique in described grid of access terminal position calculation Numbering N2, particularly as follows:
First, it is calculated access terminal longitude numbering N ' in grid according to formula (4), (5)lWith latitude numbering N 'b:
N′l=(L '-[L ']) * 4+ [L '] * 10 (4)
N′b=(B '-[B ']) * 4+ [B '] * 10 (5)
Wherein, the longitude that L ' is access terminal, the latitude that B ' is access terminal, [] is for rounding symbol.
Then, according to longitude numbering N 'lWith latitude numbering N 'bIt is calculated grid points numbering N in grid2:
N2=N 'lN′b (6)。
When the number of access terminals of server reaches load, now we only need to be reconfigured at an identical difference platform Server, just can solve the problem that a station server reaches load.By that analogy, the program can meet following large user's amount High concurrent demand.
Step 5), will be with numbering N2Identical numbering N1The dummy observation of corresponding grid points sends to access terminal, enters Row Differential positioning.
Wherein, step 1) in, for arbitrary grid points, utilize the observation number of at least three reference station around this grid points According to, carry out interpolation by two dimension difference and obtain the dummy observation of this grid points.Wherein, the observation data of reference station include satellite L1、L2Carrier phase observation data, C1、P2Pseudo-range Observations, S1、S2Signal to noise ratio observation；Cross two dimension difference to carry out interpolation and obtain virtual The dummy observation of observation station comprises the steps:
A), it is assumed that the latitude coordinates of three reference stations is respectively P1(B1,L1),P2(B2,L2),P3(B3,L3), three references The observation data stood are respectivelyI represents that reference station is numbered, i=1,2,3；Three references of matching The plane equation of triangular unit formed of standing is:
Obs=f (B, L)=a0+a1B+a2L (7)
Wherein, coefficient a0、a1、a2Determined by the observation data of three reference stations, as shown in equation (8):
Obs 1 = a 0 + a 1 B 1 + a 2 L 1 Obs 1 = a 0 + a 1 B 2 + a 2 L 2 Obs 3 = a 0 + a 1 B 3 + a 2 L 3 - - - ( 8 )
Wherein, Obs1、Obs2、Obs3It is the observation data of three reference stations, solves equation (8) and obtain coefficient a0、a1、a2For:
a 1 = ( L 1 - L 3 ) ( Obs 1 - Obs 2 ) - ( L 1 - L 2 ) ( Obs 1 - Obs 3 ) ( B 1 - B 2 ) ( L 1 - L 3 ) - ( B 1 - B 3 ) ( L 1 - L 2 ) a 2 = ( B 1 - B 3 ) ( Obs 1 - Obs 2 ) - ( B 1 - B 2 ) ( Obs 1 - Obs 3 ) ( B 1 - B 3 ) ( L 1 - L 2 ) - ( B 1 - B 2 ) ( L 1 - L 3 ) a 0 = Obs 1 - a 1 B 1 - a 2 L 1 - - - ( 9 )
B), by observation data Obs of three reference stations1、Obs2、Obs3Respectively by reference station observation C1、P2、L1、L2、S1、 S2Substitute into, try to achieve every kind of coefficient a corresponding to observation0、a1、a2；Then longitude and latitude B, L of each grid points are substituted into every kind of observation (7) formula determined by the coefficient that value is corresponding, obtains the dummy observation C of grid points1、P2、L1、L2、S1、S2。
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (2)

1. a difference Platform Server network architecture method to set up based on grid, it is characterised in that comprise the steps:
Step 1), first, by whole regional according to longitude step-length l0, latitude step-length b0Carry out dividing grid；Then, according to Geographic area, by grid partition subregion, configures one or several difference Platform Servers for every sub regions；Data processing Scheming calculates the dummy observation of each grid points in described grid, and is issued to the difference Platform Server of correspondence；
Step 2), described difference Platform Server is according to its unique number N in grid of arbitrary grid points calculation of longitude & latitude1:
First, it is calculated grid points longitude numbering N in grid according to formula (1), (2)lWith latitude numbering Nb:
Nl=(L-[L]) * 4+ [L] * 10 (1)
Nb=(B-[B]) * 4+ [B] * 10 (2)
Wherein, L is the longitude of grid points, and B is the latitude of grid points, and [] is for rounding symbol；
Then, according to described longitude numbering NlWith latitude numbering NbIt is calculated grid points numbering N in grid1:
N1=NlNb (3)
Step 3), the dummy observation of each grid points is stored according to the numbering of grid points；
Step 4), difference Platform Server gateway is set, according to access terminal position calculation, it is compiled the unique of described grid Number N2:
First, it is calculated access terminal longitude numbering N ' in grid according to formula (4), (5)lWith latitude numbering N 'b:
N′l=(L '-[L ']) * 4+ [L '] * 10 (4)
N′b=(B '-[B ']) * 4+ [B '] * 10 (5)
Wherein, the longitude that L ' is access terminal, the latitude that B ' is access terminal, [] is for rounding symbol；
Then, according to described longitude numbering N 'lWith latitude numbering N 'bIt is calculated grid points numbering N in grid2:
N2=N 'lN′b(6)；
When the full load of described difference Platform Server is run, new terminal will access newly-increased difference Platform Server；
Step 5), will be with described numbering N2Identical numbering N1The dummy observation of corresponding grid points sends to access terminal, enters Row Differential positioning.
A kind of difference Platform Server network architecture method to set up based on grid the most according to claim 1, its feature It is: described step 1) in, when dividing grid, if initial latitude B0=4, maximum latitude BM=54, if initial longitude L0=73, Maximum longitude LM=175, longitude step-length b0Take 0.25, latitude step-length l0Take 0.25.
CN201610403174.1A 2016-06-08 2016-06-08 A kind of difference Platform Server network architecture setting method based on grid Active CN106101209B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106878947A (en) * 2017-02-21 2017-06-20 北京邮电大学 A kind of indoor orientation method and device
CN106953929A (en) * 2017-05-04 2017-07-14 郑州云海信息技术有限公司 A kind of method of SmartRack servers high concurrent optimization
CN108376477A (en) * 2017-05-02 2018-08-07 山东大学 Bus or train route cooperates with public transport precision data fusion center system and working method
CN113075705A (en) * 2020-04-23 2021-07-06 中移(上海)信息通信科技有限公司 Positioning software development kit, positioning method and chip

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CN103353600A (en) * 2013-08-05 2013-10-16 东莞市泰斗微电子科技有限公司 Information processing method for satellite navigation system, information processing module and terminal
CN105334524A (en) * 2015-10-21 2016-02-17 山东天星北斗信息科技有限公司 Pseudo range differential positioning method based on virtual grid
US9307360B1 (en) * 2015-01-09 2016-04-05 NinthDecimal, Inc. Systems and methods to identify a predefined geographical region in which a mobile device is located

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CN102607513A (en) * 2012-02-14 2012-07-25 东南大学 Method for carrying out quasigeoid refining on superlarge region on basis of seamless partitioning technology
CN102547570A (en) * 2012-02-20 2012-07-04 北京邮电大学 Pseudorange difference location method and device
CN103353600A (en) * 2013-08-05 2013-10-16 东莞市泰斗微电子科技有限公司 Information processing method for satellite navigation system, information processing module and terminal
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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN106878947A (en) * 2017-02-21 2017-06-20 北京邮电大学 A kind of indoor orientation method and device
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CN108376477A (en) * 2017-05-02 2018-08-07 山东大学 Bus or train route cooperates with public transport precision data fusion center system and working method
CN106953929A (en) * 2017-05-04 2017-07-14 郑州云海信息技术有限公司 A kind of method of SmartRack servers high concurrent optimization
CN113075705A (en) * 2020-04-23 2021-07-06 中移(上海)信息通信科技有限公司 Positioning software development kit, positioning method and chip

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