CN107426695A - Gridding differential data broadcasting method, server and storage medium based on broadcast - Google Patents
Gridding differential data broadcasting method, server and storage medium based on broadcast Download PDFInfo
- Publication number
- CN107426695A CN107426695A CN201710555501.XA CN201710555501A CN107426695A CN 107426695 A CN107426695 A CN 107426695A CN 201710555501 A CN201710555501 A CN 201710555501A CN 107426695 A CN107426695 A CN 107426695A
- Authority
- CN
- China
- Prior art keywords
- differential data
- broadcast
- station
- phantom station
- gridding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
-
- 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]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of gridding differential data broadcasting method based on broadcast, server and storage medium, the present invention by target area according to pre-set radius by being divided into several grid sections, by the datum mark for determining each grid section, it is that the grid section sets phantom station according to the datum mark, packet to be sent is generated according to the differential data of the phantom station, the packet to be sent is broadcast in the form of broadcasting, reduce the parallax range in single region and improve positioning precision, so as to the positioning enhancing effect for selecting appropriate differential data to be optimal.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of gridding differential data broadcasting method based on broadcast,
Server and storage medium.
Background technology
It is widely used in every field based on the location-based service of aeronautical satellite, with Consumer's Experience, new industry
The upgrading of the demand of development and standardized administration, requirement more and more higher of the location-based service to positioning precision.
The typical way for lifting satellite navigation positioning precision is to establish ground strengthening system (ground-based
Augmentation systems, GBAS), by ground-based device provide positioning of the differential corrections signal to satellite navigation system and
Time service performance is strengthened, to reach the purpose of increase system reliability, availability, positioning precision.Ground strengthening system is main
Broadcast by CORS (Continuously Operating Reference Stations, CORS), data and be
System, user terminal composition.CORS stations are earth-fixed station, and the satellite-signal arrived according to real-time reception produces differential corrections data,
Specific user is transmitted to by data broadcasting system, user terminal corrects location information according to obtained differential corrections data.But
It is when the increase of the distance between user terminal and CORS station, the differential data that user terminal is directly broadcast using CORS stations improves
The effect of positioning precision will also be deteriorated.
Data broadcasting system in existing Beidou navigation ground strengthening system mainly has two ways：Mobile communications network and
Digital broadcast technologies.Differential data broadcasting method based on mobile radio communication is network RTK, carrier phase difference technology (Real
Time kinematic, RTK) virtual reference station technology (Virtual can be generated according to the general location that user uploads
Reference Station, VRS) so as to solve, the distance (parallax range) between user terminal and CORS stations is caused to be influenceed.
But mobile communications network is present a variety of limits such as user capacity is limited, concurrency is low, use cost is high, signal cover is limited
Condition processed, it is difficult to support large-scale application.Broadcast RTK based on broadcast mode, user capacity is unlimited, but logical due to lacking passback
Road, is only operable on single base station mode at present, and the enhancing effect of differential data increases and is deteriorated with parallax range.
The content of the invention
When broadcasting differential signal by broadcast technology it is a primary object of the present invention to improve, because lacking return path and nothing
The problem of differential data that image of Buddha network RTK provides by using multiple CORS stations like that improves positioning precision.
To achieve the above object, the present invention provides a kind of gridding differential data broadcasting method based on broadcast, the base
Comprise the following steps in the gridding differential data broadcasting method of broadcast：
Target area is divided into by several grid sections according to pre-set radius；
Determine the datum mark of each grid section；
It is that the grid section sets phantom station according to the datum mark；
Packet to be sent is generated according to the differential data of the phantom station；
The packet to be sent is broadcast in the form of broadcasting.
Preferably, before the packet to be sent according to the generation of the differential data of the phantom station, methods described is also wrapped
Include：
Spatially-correlated errors model is established using CORS；
The differential data of the phantom station is obtained according to the spatially-correlated errors model.
Preferably, it is described to establish spatially-correlated errors model using the CORS, specifically include：
Receive the real time differential data that each CORS uploads；
Spatially-correlated errors model is established according to the longitude and latitude position of the real time differential data and each phantom station；Wherein,
The real time differential data are the CORS according to the continuous longitude and latitude position for receiving navigator fix signal and institute
State CORS longitude and latitude position be compared after difference.
Preferably, the differential data that the phantom station is obtained according to the spatially-correlated errors model, is specifically included：
Obtain the longitude and latitude position of the phantom station, by the spatially-correlated errors model calculate the phantom station with
Differential data between each CORS；
Minimum value is chosen in differential data between the phantom station and each CORS as described virtual
The differential data stood.
Preferably, it is described after the differential data that the phantom station is obtained according to the spatially-correlated errors model
Method also includes：
The differential data of the phantom station is compared with the pre-set radius, when the pre-set radius is more than the void
When intending the differential data at station, the pre-set radius is adjusted, the pre-set radius is no more than the difference of the phantom station
Data.
Preferably, the datum mark for determining each grid section, is specifically included：
Judge that the grid section whether there is target broadcast station or CORS, when the grid section is present
When the target broadcast station or the CORS, using the real site present position in the grid section as base
On schedule；When the target broadcast station or the CORS is not present in the grid section, by the grid section
Center as datum mark.
Preferably, it is described that packet to be sent is generated according to the differential data of the phantom station, specifically include：
The differential data of the phantom station and the positional information of the phantom station are received, according to the difference number of the phantom station
The packet to be sent is generated according to the positional information with the phantom station.
Preferably, the positional information of the phantom station includes：
Interval Type, section ID, latitude value and the longitude of the phantom station.
In addition, to achieve the above object, the present invention also proposes a kind of gridding differential data service of broadcasting based on broadcast
Device, the gridding differential data based on broadcast, which broadcasts server, to be included：Memory, processor and it is stored in the memory
The gridding differential data based on broadcast that is upper and can running on the processor broadcasts program, the grid based on broadcast
Change differential data and broadcast the step that program is arranged for carrying out the gridding differential data broadcasting method based on broadcast as described above
Suddenly.
In addition, to achieve the above object, the present invention also proposes a kind of computer-readable recording medium, described computer-readable
The gridding differential data based on broadcast is stored with storage medium and broadcasts program, the gridding differential data based on broadcast
Broadcast the step of gridding differential data broadcasting method based on broadcast as described above is realized when program is executed by processor.
Gridding differential data broadcasting method proposed by the present invention based on broadcast, the present invention according to pre-set radius by inciting somebody to action
Target area is divided into several grid sections, is described according to the datum mark by determining the datum mark of each grid section
Grid section sets phantom station, packet to be sent is generated according to the differential data of the phantom station, by the data to be sent
Bag is broadcast in the form of broadcasting, and is reduced the parallax range in single region and is improved positioning precision, appropriate so as to select
Positioning enhancing effect of the differential data to be optimal.
Brief description of the drawings
Fig. 1 is that the gridding differential data based on broadcast for the hardware running environment that scheme of the embodiment of the present invention is related to is broadcast
Server architecture schematic diagram；
Fig. 2 is the schematic flow sheet of the gridding differential data broadcasting method first embodiment of the invention based on broadcast；
Fig. 3 is that grid section positional information form is illustrated in the gridding differential data broadcasting method of the invention based on broadcast
Figure；
Fig. 4 is the schematic flow sheet of the gridding differential data broadcasting method second embodiment of the invention based on broadcast；
Fig. 5 is the schematic flow sheet of the gridding differential data broadcasting method 3rd embodiment of the invention based on broadcast.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The solution of the embodiment of the present invention is mainly：Target area is divided into by several grid regions according to pre-set radius
Between, it is that the grid section sets phantom station according to the datum mark, according to described by determining the datum mark of each grid section
The differential data of phantom station generates packet to be sent, and the packet to be sent is broadcast in the form of broadcasting, and reduces
The parallax range in single region simultaneously improves positioning precision, so as to which the positioning for selecting appropriate differential data to be optimal increases
Potent fruit, improve when broadcasting differential signal by broadcast technology, it is logical like that without image of Buddha network RTK because lacking return path
Cross the problem of differential data provided using multiple CORS stations improves positioning precision.
Reference picture 1, Fig. 1 are the gridding difference based on broadcast for the hardware running environment that scheme of the embodiment of the present invention is related to
Data broadcast server structural representation.
It can include as shown in figure 1, being somebody's turn to do the gridding differential data based on broadcast and broadcasting server：Processor 1001, example
Such as CPU, communication bus 1002, user interface 1003, network interface 1004, memory 1005.Wherein, communication bus 1002 is used for
Realize the connection communication between these components.User interface 1003 can include display screen (Display), input block such as key
Disk (Keyboard), optional user interface 1003 can also include wireline interface, the wave point of standard.Network interface 1004 can
Wireline interface, the wave point (such as WI-FI interfaces) that can include standard of choosing.Memory 1005 can be high-speed RAM storage
Device or stable memory (non-volatile memory), such as magnetic disk storage.Memory 1005 is optional
It can also be the storage device independently of aforementioned processor 1001.
It will be understood by those skilled in the art that the gridding differential data based on broadcast shown in Fig. 1 broadcasts server
Structure does not form the restriction for broadcasting the gridding differential data based on broadcast server, can include more more or more than illustrating
Few part, either combine some parts or different parts arrangement.
As shown in figure 1, it can lead to as in a kind of memory 1005 of computer-readable storage medium including operating system, network
Letter module, Subscriber Interface Module SIM and the gridding differential data based on broadcast broadcast program.
In the gridding differential data based on broadcast shown in Fig. 1 broadcasts server, network interface 1004 is mainly used in
Gridding differential data of the connection based on broadcast broadcasts mouth, and broadcasting mouth progress data with the gridding differential data based on broadcast leads to
Letter；User interface 1003 is mainly used in connecting user terminal, enters row data communication with terminal；Place in charging server of the present invention
Reason device 1001, memory 1005 can be arranged in the gridding differential data distribution device based on broadcast, described based on broadcast
Gridding differential data distribution device the gridding based on broadcast that stores in memory 1005 is called by processor 1001
Differential data broadcasts program, and performs following operate：
Target area is divided into by several grid sections according to pre-set radius；
Determine the datum mark of each grid section；
It is that the grid section sets phantom station according to the datum mark；
Packet to be sent is generated according to the differential data of the phantom station；
The packet to be sent is broadcast in the form of broadcasting.
Further, processor 1001 can call the gridding differential data based on broadcast stored in memory 1005
Program is broadcast, also performs following operate：
Spatially-correlated errors model is established using CORS；
The differential data of the phantom station is obtained according to the spatially-correlated errors model.
Further, processor 1001 can call the gridding differential data based on broadcast stored in memory 1005
Program is broadcast, also performs following operate：
Receive the real time differential data that each CORS uploads；
Spatially-correlated errors model is established according to the longitude and latitude position of the real time differential data and each phantom station；Wherein,
The real time differential data are the CORS according to the continuous longitude and latitude position for receiving navigator fix signal and institute
State CORS longitude and latitude position be compared after difference.
Further, processor 1001 can call the gridding differential data based on broadcast stored in memory 1005
Program is broadcast, also performs following operate：
Obtain the longitude and latitude position of the phantom station, by the spatially-correlated errors model calculate the phantom station with
Differential data between each CORS；
Minimum value is chosen in differential data between the phantom station and each CORS as described virtual
The differential data stood.
Further, processor 1001 can call the gridding differential data based on broadcast stored in memory 1005
Program is broadcast, also performs following operate：
The differential data of the phantom station is compared with the pre-set radius, when the pre-set radius is more than the void
When intending the differential data at station, the pre-set radius is adjusted, the pre-set radius is no more than the difference of the phantom station
Data.
Further, processor 1001 can call the gridding differential data based on broadcast stored in memory 1005
Program is broadcast, also performs following operate：
Judge that the grid section whether there is target broadcast station or CORS, when the grid section is present
When the target broadcast station or the CORS, using the real site present position in the grid section as base
On schedule；When the target broadcast station or the CORS is not present in the grid section, by the grid section
Center as datum mark.
Further, processor 1001 can call the gridding differential data based on broadcast stored in memory 1005
Program is broadcast, also performs following operate：
The differential data of the phantom station and the positional information of the phantom station are received, according to the difference number of the phantom station
The packet to be sent is generated according to the positional information with the phantom station.
The present embodiment is by such scheme, by the way that target area is divided into several grid sections according to pre-set radius,
It is that the grid section sets phantom station according to the datum mark, according to the void by determining the datum mark of each grid section
The differential data for intending station generates packet to be sent, and the packet to be sent is broadcast in the form of broadcasting, reduced
The parallax range in single region simultaneously improves positioning precision, so as to which the positioning for selecting appropriate differential data to be optimal strengthens
Effect.
Based on above-mentioned hardware configuration, the gridding differential data broadcasting method embodiment of the invention based on broadcast is proposed.
Reference picture 2, Fig. 2 are that the flow of the gridding differential data broadcasting method first embodiment of the invention based on broadcast is shown
It is intended to.
In the first embodiment, the gridding differential data broadcasting method based on broadcast comprises the following steps：
Step S10, target area is divided into by several grid sections according to pre-set radius；
It should be noted that the pre-set radius is the radius of the grid section, naturally it is also possible to is that other can be true
Determine the parameter of grid section size, the present embodiment is not any limitation as to this；The target area is the signal energy at target broadcast station
The region of the scope enough covered, there can be multiple CORS (Continuously in this region
Operating Reference Stations, CORS), where whole region scope looks for pre-set radius to be divided, is divided into
Multiple grid sections.
It is understood that the pre-set radius can be those skilled in the art's optionally predetermined value,
Can also be by many experiments or calculate a discreet value extrapolating, can also be the value that determines by other means or
One data area, the present embodiment are not any limitation as to this；
In the specific implementation, the shape of grid section uses regular hexagon, because regular hexagon is compared to triangle or just
It is square, region of the same area can be covered with minimal amount of grid section, and will not be produced as circular interval overlapping
Region, the trouble for avoiding signal from switching；The distribution of certain grid section and shape can be advised flexibly according to the actual requirements
Draw, each grid section can be divided into different shape sections according to geographical environment, and the present embodiment is not any limitation as to this；
Step S20, the datum mark of each grid section is determined；
Further, the datum mark for determining each grid section, is specifically included：
Judge that the grid section whether there is target broadcast station or CORS, when the grid section is present
When the target broadcast station or the CORS, using the real site present position in the grid section as base
On schedule；When the target broadcast station or the CORS is not present in the grid section, by the grid section
Center as datum mark.
It is understood that by judge the grid section with the presence or absence of target broadcast station or CORS come
The datum mark of each grid section is determined, the anchor point of each grid section can be determined more accurately, can be advantageous to subsequently more
Add accurate calculating difference information, so as to improve the positioning precision of the user terminal in each grid section, lift Consumer's Experience.
It should be noted that the datum mark is the point that the longitude and latitude position in grid section determines, when the grid regions
Between when the target broadcast station or the CORS be present, by the real site present position in the grid section
As datum mark；When the target broadcast station or the CORS is not present in the grid section, by the net
The center in lattice section is as datum mark.
In the specific implementation, the distance between the datum mark of user terminal and the grid section being presently in, which is less than, arrives each company
The distance between reforwarding row reference station, and it is less than Dilution of Precision's distance, when user uses the difference corresponding to the grid section
When data are to correct positioning result, precision will be above the differential data directly provided using CORS.
Step S30, it is that the grid section sets phantom station according to the datum mark；
It is understood that setting phantom station according to the datum mark determined in each grid section, the data of phantom station can
To be preserved in database, or it can also be preserved in other similar devices with store function, with side
Just subsequent operation, the present embodiment are not any limitation as to this.
In the specific implementation, the information of phantom station to be stored in data processing with treating that continuous operation refers in control centre
Handled after the base station Data Collection stood, naturally it is also possible to be stored in other similar devices or data with store function
In storehouse, the present embodiment is not any limitation as to this.
Step S40, packet to be sent is generated according to the differential data of the phantom station；
It is understood that the differential data is the pseudorange that the information provided according to the CORS determines
Correction or position correction amount；The packet to be sent includes the differential data of the phantom station.
Further, it is described that packet to be sent is generated according to the differential data of the phantom station, specifically include：
The differential data of the phantom station and the positional information of the phantom station are received, according to the difference number of the phantom station
The packet to be sent is generated according to the positional information with the phantom station.
It is understood that institute is generated by the positional information of the differential data according to the phantom station and the phantom station
Packet to be sent is stated, user terminal can be advantageous to when receiving the packet broadcast, difference can be quickly recognized
The source of data, so as to quickly calculate the differential data for parsing current location, and Present navigation positioning is corrected, so as to
The accuracy of navigator fix is further improved, lifts Consumer's Experience.
In the specific implementation, the differential data for calculating each phantom station needs what is provided using multiple CORSs
Information needed, generally require the information needed i.e. real time differential data of at least three CORS offer, the present embodiment pair
This is not any limitation as.The real time differential data are the CORS according to the continuous warp for receiving navigator fix signal
Position Latitude be compared with the longitude and latitude position of the CORS after difference.
It should be noted that the positional information of the phantom station includes：The Interval Type of the phantom station, section ID, latitude
Angle value and longitude；
It should be appreciated that type of the Interval Type of the phantom station for expression grid section, for example, 00 represents benchmark
Point is CORS CORS；11 represent that datum mark is broadcasting station；01 represents that datum mark is grid section phantom station, so
It can be advantageous to the source that quick determination receiving terminal identifies the differential data received after carrying out Interval Type division；Certain net
The Type division mode in lattice section is also not limited to aforesaid way, can also carry out Type division by other means, this
Embodiment is not any limitation as to this；Section ID is the unique mark of each grid section in the coverage of broadcasting station, can be mark
Know code, can also be code or different icons, can also be that other play mark or the information of checking, the present embodiment pair
This is not any limitation as；
It should be appreciated that the longitude include longitude slightly value and longitude expanding value, wherein the longitude slightly value be with
(180°/215) it is the longitude that unit represents, positive number represents east longitude, negative number representation west longitude；The longitude expanding value is further
The positioning precision of longitude is improved, is represented with unsigned number, value is multiplied by (180 °/219) after be slightly worth with the longitude and be added to obtain
More accurate longitude；The latitude value include latitude slightly value and dimension extension value, wherein the latitude slightly value be with (90 °/
215) it is the latitude value that unit represents, positive number represents north latitude, negative number representation south latitude；The dimension extension value passes through further to improve
The positioning precision of degree, is represented with unsigned number, and value is multiplied by (90 °/219) after be slightly worth with the latitude be added to obtain it is more accurate
True latitude value.
In the specific implementation, dimension extension value and longitude expanding value be in order to it is higher applied to positioning accuracy request when utilize
Whether the parameter arrived, user can voluntarily select setting when the common location requirement of progress is less fine to required precision
Need dimension extension value and longitude expanding value；Grid regions meta in gridding differential data broadcasting method of the invention based on broadcast
Confidence ceases form schematic diagram as shown in figure 3, wherein Interval Type accounts for 2 bits, and section ID accounts for 8 bits, and the thick value of latitude accounts for 16 bits,
The thick value of longitude accounts for 16 bits, and dimension extension value accounts for 4 bits, and longitude expanding value accounts for 4 bits；Certain grid section positional information
Form may be not necessarily limited to the form shown in Fig. 3, can also be the form of other forms, and the present embodiment is not any limitation as to this.
Step S50, the packet to be sent is broadcast in the form of broadcasting.
Can be in broadcast carrier phase it is understood that the packet to be sent is carried out broadcasting in the form of broadcasting
The difference enhancing effect of proximity network RTK patterns is realized under differential technique (Real time kinematic, RTK) pattern.
The present embodiment by target area according to pre-set radius by being divided into several grid sections, by determining each grid
The datum mark in section, it is that the grid section sets phantom station according to the datum mark, according to the differential data of the phantom station
Packet to be sent is generated, the packet to be sent is broadcast in the form of broadcasting, reduces the baseline in single region
Distance simultaneously improves positioning precision, so as to the positioning enhancing effect for selecting appropriate differential data to be optimal.
Further, as shown in figure 4, proposing that the gridding differential data of the invention based on broadcast is broadcast based on first embodiment
Forwarding method second embodiment, in the present embodiment, before the step S40, in addition to step：
Step S31, spatially-correlated errors model is established using CORS；
Further, it is described to establish spatially-correlated errors model using CORS, specifically include：
Receive the real time differential data that each CORS uploads；
Spatially-correlated errors model is established according to the longitude and latitude position of the real time differential data and each phantom station；Wherein,
The real time differential data are the CORS according to the continuous longitude and latitude position for receiving navigator fix signal and institute
State CORS longitude and latitude position be compared after difference.
It is understood that the real time differential data uploaded by receiving each CORS, according to described real-time
Spatially-correlated errors model is established in the longitude and latitude position of differential data and each phantom station, can be looked into quickly through spatial error model
The differential data of phantom station in each grid section is looked for or calculates, so as to which when user terminal is in a certain grid section, energy is fast
Speed calculates corresponding differential data, and Present navigation positioning is corrected, and then improves positioning precision, lifts Consumer's Experience.
It should be noted that the real time differential data for the CORS for passing through one's respective area can calculate each phantom station
Differential data；With all grid sections in the overlay area of target broadcast station be mutually related CORS be referred to as belong to
CORS in one's respective area；
In the specific implementation, data processing and control centre can be sent to after real time differential data acquisition.The number
According to processing and control centre after the data from each CORS are received, these data are comprehensively utilized, according to institute
State real time differential data and spatially-correlated errors model is established in the longitude and latitude position of each phantom station；Can certainly will it is described in real time
Differential data is stored in other similar devices or database with store function, and the present embodiment is not any limitation as to this.
S32, the differential data according to the spatially-correlated errors model acquisition phantom station.
It is understood that space correlation is established in the longitude and latitude position after obtaining the real time differential data with each phantom station
Error model, it is certainly not limited to establish a kind of this mode of model or establish real time differential data to pass through with each phantom station
The mapping relations list of latitude, the differential data for calculating obtain phantom station in other manners is can also be, the present embodiment is to this
It is not any limitation as.
Further, after the differential data that the phantom station is obtained according to the spatially-correlated errors model, institute
Stating method also includes：
The differential data of the phantom station is compared with the pre-set radius, when the pre-set radius is more than the void
When intending the differential data at station, the pre-set radius is adjusted, the pre-set radius is no more than the difference of the phantom station
Data.
It should be noted that by the way that the differential data of the phantom station is compared with the pre-set radius, when described
When pre-set radius is more than the differential data of the phantom station, the pre-set radius is adjusted, can in time, neatly be adjusted
The differential data of phantom station in whole each grid section, the span of the differential data of proper phantom station is selected,
The navigator fix of the user terminal in grid section is compared so as to select the differential data of most appropriate phantom station
Accurately correction, so as to improve positioning precision, the positioning enhancing effect that is optimal, lift Consumer's Experience.
It is understood that the pre-set radius of grid section meets that planning demand is defined by positioning precision, it is usually no more than
The distance that differential data keeps relative stability；Each grid section can determine its radius size according to actual propagation condition, dry
Radius size can suitably be expanded by disturbing few area, and then should suitably reduce radius size in the area of serious interference.
In the present embodiment, by using the real time differential data for receiving each CORS upload；According to the reality
When differential data and each phantom station longitude and latitude position establish spatially-correlated errors model；Being capable of each phantom station of quick obtaining and reality
When differential data relation, it is convenient follow-up to calculate phantom station differential data, improve the efficiency for determining phantom station differential data.
Further, as shown in figure 5, proposing that the gridding differential data of the invention based on broadcast is broadcast based on second embodiment
Forwarding method 3rd embodiment, in the present embodiment, the step S32 specifically include step：
Step S33, the longitude and latitude position of the phantom station is obtained, is calculated by the spatially-correlated errors model described
Differential data between phantom station and each CORS；
It is understood that the longitude and latitude position by inputting current virtual station, can be quickly through the space correlation
Error model calculates the differential data between the phantom station and each CORS, using these differential datas as one
Individual set is stored in data processing and control centre, naturally it is also possible to by the real time differential data storage in other similar tools
Have in the device or database of store function, the present embodiment is not any limitation as to this.
Step S34, minimum value conduct is chosen in the differential data between the phantom station and each CORS
The differential data of the phantom station.
It should be appreciated that choose minimum value in differential data between the phantom station and each CORS
Differential data as the phantom station is a kind of mode for screening differential data, naturally it is also possible to is by other screening modes
Or rule selects the differential data of the phantom station, the present embodiment is not any limitation as to this.
In the specific implementation, data processing is receiving the real time differential from each CORS with control centre
After data, comprehensively utilize the real time differential data and continuously run for one group according to the selection of the longitude and latitude positional information of the phantom station
The information of reference station establishes the spatially-correlated errors model, so as to estimate each phantom station and the CORS
Between spatially-correlated errors be the differential data of each phantom station, then therefrom select difference of the minimum value as the phantom station
Divided data.
It should be noted that traditional broadcast RTK due to user terminal be in broadcast coverage areas it is a wide range of in, no matter position
Where put can only all receive changeless differential data, therefore when user terminal is in remote broadcasting station, navigator fix
Precision reduce unavoidably, and the differential data of gridding is received by the method for the present embodiment, then can greatly improve positioning accurate
Degree, reaches the effect similar with network RTK；User terminal can receive gridding differential data as follows to carry
High position precision：First, the general location of itself that user terminal is obtained by common navigation localization method, user terminal according to
The satellite-signal directly received establishes positioning calculation equation and obtains preliminary positioning result.Due to by satellite ephemeris error, defending
Star clock correction, ionospheric error and tropospheric error etc. influence, and its positioning precision is typically than relatively low.Then, user terminal receives number
Word broadcast singal, and the packet to be sent after encryption is demodulated, the positional information of each grid section is obtained after demodulation, user is whole
The distance by calculating the general location and each grid section is held, searches for minimum value, and finds its corresponding grid numbering
Afterwards, the differential data of the differential data of phantom station corresponding to the grid section, i.e. current virtual station is parsed, last basis is sought only
The differential data of phantom station is modified to the preliminary positioning result, to obtain the navigator fix result of higher precision.
The present embodiment is calculated described by obtaining the longitude and latitude position of phantom station by the spatially-correlated errors model
Differential data between phantom station and each CORS；Difference between the phantom station and each CORS
Differential data of the minimum value as the phantom station is chosen in divided data；Can utilization space error model quickly determine phantom station
Differential data, improve the speed for determining phantom station differential data, and improve the accuracy of differential data, can be with suitable
When the positioning enhancing effect that is optimal of differential data.
In addition, the embodiment of the present invention also proposes a kind of computer-readable recording medium, the computer-readable recording medium
On be stored with the gridding differential data based on broadcast and broadcast program, the gridding differential data based on broadcast broadcasts program
Following operation is realized when being executed by processor：
Target area is divided into by several grid sections according to pre-set radius；
Determine the datum mark of each grid section；
It is that the grid section sets phantom station according to the datum mark；
Packet to be sent is generated according to the differential data of the phantom station；
The packet to be sent is broadcast in the form of broadcasting.
Further, the gridding differential data based on broadcast broadcast also realized when program is executed by processor it is as follows
Operation：
Spatially-correlated errors model is established using CORS；
The differential data of the phantom station is obtained according to the spatially-correlated errors model.
Further, the gridding differential data based on broadcast broadcast also realized when program is executed by processor it is as follows
Operation：
Receive the real time differential data that each CORS uploads；
Spatially-correlated errors model is established according to the longitude and latitude position of the real time differential data and each phantom station；Wherein,
The real time differential data are the CORS according to the continuous longitude and latitude position for receiving navigator fix signal and institute
State CORS longitude and latitude position be compared after difference.
Further, the gridding differential data based on broadcast broadcast also realized when program is executed by processor it is as follows
Operation：
The longitude and latitude position of phantom station is obtained, the phantom station and each company are calculated by the spatially-correlated errors model
Differential data between reforwarding row reference station；
Minimum value is chosen in differential data between the phantom station and each CORS as described virtual
The differential data stood.
Further, the gridding differential data based on broadcast broadcast also realized when program is executed by processor it is as follows
Operation：
The differential data of the phantom station is compared with the pre-set radius, when the pre-set radius is more than the void
When intending the differential data at station, the pre-set radius is adjusted, the pre-set radius is no more than the difference of the phantom station
Data.
Further, the gridding differential data based on broadcast broadcast also realized when program is executed by processor it is as follows
Operation：
Judge that the grid section whether there is target broadcast station or CORS, when the grid section is present
When the target broadcast station or the CORS, using the real site present position in the grid section as base
On schedule；When the target broadcast station or the CORS is not present in the grid section, by the grid section
Center as datum mark.
Further, the gridding differential data based on broadcast broadcast also realized when program is executed by processor it is as follows
Operation：
The differential data of the phantom station and the positional information of the phantom station are received, according to the difference number of the phantom station
The packet to be sent is generated according to the positional information with the phantom station.
The present embodiment is single so as to reduce by the way that target area is divided into several grid sections according to pre-set radius
The parallax range in region improves positioning precision；By the datum mark for determining each grid section；It is described according to the datum mark
Grid section sets phantom station；Packet to be sent is generated according to the differential data of the phantom station, so as to select appropriate difference
Positioning enhancing effect of the divided data to be optimal.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or system including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or system institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or system.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone,
Computer, server, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of gridding differential data broadcasting method based on broadcast, it is characterised in that methods described includes：
Target area is divided into by several grid sections according to pre-set radius；
Determine the datum mark of each grid section；
It is that the grid section sets phantom station according to the datum mark；
Packet to be sent is generated according to the differential data of the phantom station；
The packet to be sent is broadcast in the form of broadcasting.
2. the method as described in claim 1, it is characterised in that described to be sent according to the generation of the differential data of the phantom station
Before packet, methods described also includes：
Spatially-correlated errors model is established using CORS；
The differential data of the phantom station is obtained according to the spatially-correlated errors model.
3. method as claimed in claim 2, it is characterised in that described to establish space correlation using the CORS
Error model, specifically include：
Receive the real time differential data that each CORS uploads；
Spatially-correlated errors model is established according to the longitude and latitude position of the real time differential data and each phantom station；Wherein, it is described
Real time differential data are the CORS according to the continuous longitude and latitude position for receiving navigator fix signal and the company
The longitude and latitude position of reforwarding row reference station be compared after difference.
4. method as claimed in claim 3, it is characterised in that described that the void is obtained according to the spatially-correlated errors model
Intend the differential data at station, specifically include：
The longitude and latitude position of the phantom station is obtained, the phantom station and each company are calculated by the spatially-correlated errors model
Differential data between reforwarding row reference station；
Minimum value is chosen in differential data between the phantom station and each CORS as the phantom station
Differential data.
5. method as claimed in claim 2, it is characterised in that described that the void is obtained according to the spatially-correlated errors model
After the differential data for intending station, methods described also includes：
The differential data of the phantom station is compared with the pre-set radius, when the pre-set radius is more than the phantom station
Differential data when, the pre-set radius is adjusted, make the pre-set radius be no more than the phantom station differential data.
6. the method as described in claim 1, it is characterised in that the datum mark for determining each grid section, specifically include：
Judge that the grid section whether there is target broadcast station or CORS, when described in grid section presence
When target broadcast station or the CORS, using the real site present position in the grid section as benchmark
Point；When the target broadcast station or the CORS is not present in the grid section, by the grid section
Center is as datum mark.
7. the method as described in claim 1, it is characterised in that described to be sent according to the generation of the differential data of the phantom station
Packet, specifically include：
Receive the differential data of the phantom station and the positional information of the phantom station, according to the differential data of the phantom station and
The positional information of the phantom station generates the packet to be sent.
8. method as claimed in claim 7, it is characterised in that the positional information of the phantom station includes：
Interval Type, section ID, latitude value and the longitude of the phantom station.
9. a kind of gridding differential data based on broadcast broadcasts server, it is characterised in that the gridding based on broadcast
Differential data, which broadcasts server, to be included：Memory, processor and it is stored on the memory and can transports on the processor
The capable gridding differential data based on broadcast broadcasts program, and the gridding differential data based on broadcast broadcasts program configuration
The step of to realize the gridding differential data broadcasting method based on broadcast as any one of claim 1 to 8.
10. a kind of computer-readable recording medium, it is characterised in that be stored with the computer-readable recording medium based on wide
The gridding differential data broadcast broadcasts program, when the gridding differential data based on broadcast is broadcast program and is executed by processor
The step of realizing the gridding differential data broadcasting method based on broadcast as any one of claim 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555501.XA CN107426695B (en) | 2017-07-07 | 2017-07-07 | Broadcast-based gridding differential data broadcasting method, server and storage medium |
| PCT/CN2018/072277 WO2019007022A1 (en) | 2017-07-07 | 2018-01-11 | Broadcast-based gridding differential data broadcasting method, server, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555501.XA CN107426695B (en) | 2017-07-07 | 2017-07-07 | Broadcast-based gridding differential data broadcasting method, server and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107426695A true CN107426695A (en) | 2017-12-01 |
| CN107426695B CN107426695B (en) | 2020-03-20 |
Family
ID=60427500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710555501.XA Active CN107426695B (en) | 2017-07-07 | 2017-07-07 | Broadcast-based gridding differential data broadcasting method, server and storage medium |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107426695B (en) |
| WO (1) | WO2019007022A1 (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490459A (en) * | 2018-02-12 | 2018-09-04 | 千寻位置网络有限公司 | Precision is applied to the method and system of GNSS location service with risk balance |
| CN108710676A (en) * | 2018-05-17 | 2018-10-26 | 武汉导航与位置服务工业技术研究院有限责任公司 | High precision position towards large-scale distributed user broadcasts service unit and method |
| CN108802765A (en) * | 2018-07-03 | 2018-11-13 | 千寻位置网络有限公司 | Control method and system, the localization method and terminal of gridding information transmission |
| CN108897025A (en) * | 2018-05-15 | 2018-11-27 | 艾欧创想智能科技（武汉）有限公司 | High-precision locating method, device, terminal device and computer readable storage medium |
| WO2019007022A1 (en) * | 2017-07-07 | 2019-01-10 | 深圳思凯微电子有限公司 | Broadcast-based gridding differential data broadcasting method, server, and storage medium |
| CN109525936A (en) * | 2018-01-15 | 2019-03-26 | 四川中电昆辰科技有限公司 | Multifrequency point position data return system |
| CN109899932A (en) * | 2017-12-11 | 2019-06-18 | 香港城市大学深圳研究院 | The control method and device of air-conditioning |
| CN110488332A (en) * | 2018-05-14 | 2019-11-22 | 广州市中海达测绘仪器有限公司 | Method and device based on technology of network RTK |
| CN110545519A (en) * | 2019-10-15 | 2019-12-06 | 和芯星通科技(北京)有限公司 | network RTK service method, network RTK server, communication base station, and storage medium |
| CN111045051A (en) * | 2019-07-10 | 2020-04-21 | 广东星舆科技有限公司 | VRS information generation method, positioning service providing method and positioning service device |
| CN111277945A (en) * | 2018-11-20 | 2020-06-12 | 北京华信泰科技股份有限公司 | RTK positioning method and device |
| CN111273324A (en) * | 2018-12-05 | 2020-06-12 | 深圳华大北斗科技有限公司 | Satellite positioning enhancement method, device, computer equipment and storage medium |
| CN111427074A (en) * | 2020-06-10 | 2020-07-17 | 天津七一二通信广播股份有限公司 | GBAS-based high-reliability time system service equipment |
| CN111641926A (en) * | 2020-05-19 | 2020-09-08 | 深圳思凯微电子有限公司 | Method for meshing broadcast signal coverage areas, server and storage medium |
| CN111781618A (en) * | 2020-07-08 | 2020-10-16 | 深圳思凯微电子有限公司 | Satellite navigation differential data receiving method, device, equipment and storage medium |
| CN111817807A (en) * | 2020-07-21 | 2020-10-23 | 深圳思凯微电子有限公司 | Broadcast-based differential data broadcasting method, device, equipment and storage medium |
| CN112764072A (en) * | 2019-11-01 | 2021-05-07 | 千寻位置网络有限公司 | Differential data broadcasting method and device, service terminal and storage medium |
| CN112765759A (en) * | 2019-11-01 | 2021-05-07 | 千寻位置网络有限公司 | Reference station velocity field processing method and device |
| CN114236583A (en) * | 2021-12-23 | 2022-03-25 | 国汽大有时空科技(安庆)有限公司 | Space geographic range coding method and global-range GNSS differential enhanced positioning method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011203100A (en) * | 2010-03-25 | 2011-10-13 | Electronic Navigation Research Institute | Correction method of positioning error in satellite navigation system,and device thereof |
| CN106569239A (en) * | 2015-10-09 | 2017-04-19 | 唐颖哲 | Broadcast-type network RTK positioning technology |
| CN106707317A (en) * | 2016-12-01 | 2017-05-24 | 上海埃威航空电子有限公司 | Regional position differential positioning method and system |
| CN106855632A (en) * | 2016-12-30 | 2017-06-16 | 广州市中海达测绘仪器有限公司 | A kind of broadcast type VRS localization methods and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426695B (en) * | 2017-07-07 | 2020-03-20 | 深圳思凯微电子有限公司 | Broadcast-based gridding differential data broadcasting method, server and storage medium |
-
2017
- 2017-07-07 CN CN201710555501.XA patent/CN107426695B/en active Active
-
2018
- 2018-01-11 WO PCT/CN2018/072277 patent/WO2019007022A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011203100A (en) * | 2010-03-25 | 2011-10-13 | Electronic Navigation Research Institute | Correction method of positioning error in satellite navigation system,and device thereof |
| CN106569239A (en) * | 2015-10-09 | 2017-04-19 | 唐颖哲 | Broadcast-type network RTK positioning technology |
| CN106707317A (en) * | 2016-12-01 | 2017-05-24 | 上海埃威航空电子有限公司 | Regional position differential positioning method and system |
| CN106855632A (en) * | 2016-12-30 | 2017-06-16 | 广州市中海达测绘仪器有限公司 | A kind of broadcast type VRS localization methods and system |
Non-Patent Citations (1)
| Title |
|---|
| 张海瑞等: "CORS系统的技术特点及应用现状与展望", 《硅谷》 * |
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019007022A1 (en) * | 2017-07-07 | 2019-01-10 | 深圳思凯微电子有限公司 | Broadcast-based gridding differential data broadcasting method, server, and storage medium |
| CN109899932B (en) * | 2017-12-11 | 2021-03-02 | 香港城市大学深圳研究院 | Control method and device of air conditioner |
| CN109899932A (en) * | 2017-12-11 | 2019-06-18 | 香港城市大学深圳研究院 | The control method and device of air-conditioning |
| CN109525936B (en) * | 2018-01-15 | 2024-03-19 | 四川中电昆辰科技有限公司 | Multi-frequency point position data return system |
| CN109525936A (en) * | 2018-01-15 | 2019-03-26 | 四川中电昆辰科技有限公司 | Multifrequency point position data return system |
| CN108490459A (en) * | 2018-02-12 | 2018-09-04 | 千寻位置网络有限公司 | Precision is applied to the method and system of GNSS location service with risk balance |
| CN110488332B (en) * | 2018-05-14 | 2021-09-10 | 广州市中海达测绘仪器有限公司 | Positioning information processing method and device based on network RTK technology |
| CN110488332A (en) * | 2018-05-14 | 2019-11-22 | 广州市中海达测绘仪器有限公司 | Method and device based on technology of network RTK |
| CN108897025B (en) * | 2018-05-15 | 2021-11-26 | 艾欧创想智能科技（武汉）有限公司 | High-precision positioning method and device, terminal equipment and computer readable storage medium |
| CN108897025A (en) * | 2018-05-15 | 2018-11-27 | 艾欧创想智能科技（武汉）有限公司 | High-precision locating method, device, terminal device and computer readable storage medium |
| CN108710676A (en) * | 2018-05-17 | 2018-10-26 | 武汉导航与位置服务工业技术研究院有限责任公司 | High precision position towards large-scale distributed user broadcasts service unit and method |
| CN108802765B (en) * | 2018-07-03 | 2022-05-10 | 千寻位置网络有限公司 | Control method and system for grid information transmission, positioning method and terminal |
| CN108802765A (en) * | 2018-07-03 | 2018-11-13 | 千寻位置网络有限公司 | Control method and system, the localization method and terminal of gridding information transmission |
| CN111277945A (en) * | 2018-11-20 | 2020-06-12 | 北京华信泰科技股份有限公司 | RTK positioning method and device |
| CN111273324A (en) * | 2018-12-05 | 2020-06-12 | 深圳华大北斗科技有限公司 | Satellite positioning enhancement method, device, computer equipment and storage medium |
| CN111045051A (en) * | 2019-07-10 | 2020-04-21 | 广东星舆科技有限公司 | VRS information generation method, positioning service providing method and positioning service device |
| CN110545519A (en) * | 2019-10-15 | 2019-12-06 | 和芯星通科技(北京)有限公司 | network RTK service method, network RTK server, communication base station, and storage medium |
| CN112765759A (en) * | 2019-11-01 | 2021-05-07 | 千寻位置网络有限公司 | Reference station velocity field processing method and device |
| CN112764072A (en) * | 2019-11-01 | 2021-05-07 | 千寻位置网络有限公司 | Differential data broadcasting method and device, service terminal and storage medium |
| CN112765759B (en) * | 2019-11-01 | 2023-03-24 | 千寻位置网络有限公司 | Reference station velocity field processing method and device |
| CN111641926A (en) * | 2020-05-19 | 2020-09-08 | 深圳思凯微电子有限公司 | Method for meshing broadcast signal coverage areas, server and storage medium |
| CN111641926B (en) * | 2020-05-19 | 2021-11-16 | 深圳思凯微电子有限公司 | Method for meshing broadcast signal coverage areas, server and storage medium |
| CN111427074A (en) * | 2020-06-10 | 2020-07-17 | 天津七一二通信广播股份有限公司 | GBAS-based high-reliability time system service equipment |
| CN111781618A (en) * | 2020-07-08 | 2020-10-16 | 深圳思凯微电子有限公司 | Satellite navigation differential data receiving method, device, equipment and storage medium |
| CN111781618B (en) * | 2020-07-08 | 2022-10-18 | 深圳思凯微电子有限公司 | Satellite navigation differential data receiving method, device, equipment and storage medium |
| WO2022007564A1 (en) * | 2020-07-08 | 2022-01-13 | 深圳思凯微电子有限公司 | Method, apparatus and device for receiving satellite navigation differential data, and storage medium |
| WO2022017016A1 (en) * | 2020-07-21 | 2022-01-27 | 深圳思凯微电子有限公司 | Differential data broadcasting method, apparatus and device based on broadcasting, and storage medium |
| CN111817807A (en) * | 2020-07-21 | 2020-10-23 | 深圳思凯微电子有限公司 | Broadcast-based differential data broadcasting method, device, equipment and storage medium |
| CN114236583A (en) * | 2021-12-23 | 2022-03-25 | 国汽大有时空科技(安庆)有限公司 | Space geographic range coding method and global-range GNSS differential enhanced positioning method |
| CN114236583B (en) * | 2021-12-23 | 2022-10-11 | 国汽大有时空科技(安庆)有限公司 | Space geographic range coding method and global-range GNSS differential enhanced positioning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107426695B (en) | 2020-03-20 |
| WO2019007022A1 (en) | 2019-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107426695A (en) | Gridding differential data broadcasting method, server and storage medium based on broadcast | |
| US20220232447A1 (en) | Ephemeris information-based serving cell reselection method and apparatus, and storage medium | |
| CN106569239B (en) | A kind of broadcast type network RTK location technology | |
| US20190219403A1 (en) | Indoor positioning technique and information pushing system, method and device based thereon, and terminal | |
| CN104977596A (en) | High-accuracy position correction positioning system based on cloud computing | |
| CN107820204A (en) | Protect the high-precision locating method and system of customer location privacy | |
| CN106502264A (en) | The operating system of plant protection unmanned plane | |
| CN109246621A (en) | Differential data broadcasting method and device, method of reseptance and device, storage medium | |
| CN105353391A (en) | Location augmentation system of multi-network integration supporting multi-type location terminals and location augmentation method of multi-network integration supporting multi-type location terminals | |
| US9402188B2 (en) | Geo-location error correction for small cell placement | |
| CN110418285A (en) | A kind of method for building up and device of radio map | |
| CN107783164A (en) | The indoor and outdoor localization method and system of a kind of terminal device | |
| CN106257307A (en) | There is the GNSS receiver of the airborne ability realizing Optimal Error correction mode | |
| EP1510099A1 (en) | Method for locating mobile terminals, system and components therefor | |
| CN103822638B (en) | The treating method and apparatus of customer position information | |
| CN107797127A (en) | High accuracy positioning high in the clouds calculation method and system | |
| WO2022017016A1 (en) | Differential data broadcasting method, apparatus and device based on broadcasting, and storage medium | |
| CN106559815A (en) | A kind of base station optimization method and device based on location data | |
| CN111935733A (en) | Method, device and equipment for checking base station position information and computer storage medium | |
| CN104837114B (en) | Method and apparatus for the location information exception for determining user | |
| KR102545275B1 (en) | Apparatus and method for generating revising information of sattellite location coordinates using optimal information of virtual reference station | |
| CN108519612A (en) | Network RTK switching methods | |
| WO2013095506A1 (en) | Mechanism for employing and facilitating geodetic triangulation for determining global positioning of computing devices | |
| KR20090039166A (en) | Method, server and system for building virtual pcell database | |
| CN111405464A (en) | Base station position detection method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |