CN106912076B - Differential data broadcasting system and method are applied in a kind of multiple terminals more - Google Patents
Differential data broadcasting system and method are applied in a kind of multiple terminals more Download PDFInfo
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- CN106912076B CN106912076B CN201710190355.5A CN201710190355A CN106912076B CN 106912076 B CN106912076 B CN 106912076B CN 201710190355 A CN201710190355 A CN 201710190355A CN 106912076 B CN106912076 B CN 106912076B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
- H04W28/065—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
Abstract
The present invention provides a kind of multiple terminals and differential data broadcasting system, including difference is applied to broadcast platform, at least one base station and at least 1 terminal device more；The terminal device includes at least 1 application；Difference broadcasts the differential data that platform convergence base station uploads；Difference broadcasts platform and carries out intelligent converge operation to differential data required for terminal device, and the differential data after intelligence convergence is broadcast to terminal device, after terminal device receives the differential data for broadcasting, it is scheduled and distributes again according to the actual conditions more applied.The data that the present invention broadcasts needs are uniformly processed, and difference broadcasts platform and carries out intelligent evaluation to differential data, and client is scheduled shunting again, can achieve the effect that save network bandwidth and flow.
Description
Technical field
The present invention relates to technical field of satellite navigation, in particular to a kind of multiple terminals apply more differential data broadcasting system and
Method.
Background technique
The basic principle of differential position is: the base station (also known as base station or reference station) of known accurate coordinate calculates
Oneself the distance correction of satellite is arrived out, and uniformly uploads to data center, the formed ground enhancing of base station and data center
System (difference broadcasts platform).Difference broadcasts platform and in real time sends this data on the terminal device for needing to position.Terminal is set
The differential data that platform issues is broadcast for difference while carrying out moonscope, is also received, and its positioning result is carried out
Correction, to improve positioning accuracy.Difference is generally divided into carrier phase differential data and pseudo range difference data, is respectively used to terminal
Equipment carries out carrier phase difference (RTK, Real Time Kinematic) positioning and pseudo range difference (RTD, Real Time
Differential it) positions, wherein carrier phase differential positioning, precision is high, but the high requirements on the equipment, and cost is also high, availability
It is low, it is used primarily in survey field；Pseudo range difference positioning, low for equipment requirements, at low cost, availability is high, moderate accuracy, Ke Yiyong
In civil navigation field.
The international ocean shipping cause radio technology committee (RTCM, Radio Technical Commission for
Maritime Services) format of differential data is defined, and recommend that need the terminal device that positions and difference to broadcast flat
Service agreement NTRIP (Networked Transport of RTCM via Internet Protocol) between platform.At present
Using carrier phase position terminal and pseudo range difference positioning terminal, all follow NTRIP agreement and RTCM data format.Terminal
Equipment is generally all broadcast platform with difference by wireless network and is connect.
For need to receive the differential data that satellite navigation ground based augmentation system (differential data broadcasts platform) is broadcast so as to
For the terminal device for carrying out precise positioning, according to whether a terminal device has multiple applications that can be divided into two types:
1, only one application of terminal device, such as the professional surveying and mapping equipment of survey field, unmanned plane, bicycle；
2, a terminal device has multiple applications, such as mobile phone, automobile.
Existing satellite difference data broadcast based on NTRIP agreement (by internet carry out RTCM network transmission agreement,
Networked Transport of RTCM via Intemet Protocol), user authentication is based on NTRIP protocol definition
Difference account (including user name and difference password).It needs the terminal device of precise positioning and difference to broadcast platform generally all to pass through
Mobile network is attached, and the bandwidth of mobile network is typically limited, and the network flow of terminal is also to need to generate
Expense.For having the terminal of multiple applications, such as mobile phone, traditional method needs to create multiple difference accounts, if it is mobile phone
On each application create a difference account, such difference broadcasts platform and needs to broadcast for each application on the terminal device
Send out differential data.It is possible that the differential data that each application needs is same format, such terminal device network flow consumption
It is larger.
Summary of the invention
Platform is broadcast the technical problem to be solved by the present invention is to difference, and intelligence is carried out to the differential data of premises equipment requests
Identify, and carry out broadcasting for province's flow according to the actual situation, after terminal device receives the differential data for broadcasting, according to more
The actual conditions of application are scheduled and distribute again.
The technical solution adopted by the present invention is that:
Differential data broadcasting system is applied in a kind of multiple terminals more, including difference broadcasts platform, at least one base station and at least
1 terminal device；Difference broadcasts the differential data that platform convergence base station uploads；Difference broadcasts platform to required for terminal device
Differential data carry out intelligent converge operation, and the differential data after intelligence convergence is broadcast to terminal device.
Further, the difference broadcast platform include base station data receiver processing module, terminal device poller module,
Differential data library, intelligent convergence module and difference broadcasting module；Base station data receiver processing module receives and processing base station
The differential data of upload, and differential data is stored in differential data library by treated；Differential data library and terminal device poll mould
Block is connected with intelligent convergence module；All terminal devices of terminal device poller module poll are parsed and are broadcast required for terminal device
Differential data；Intelligent convergence module carries out intelligent converge operation to the differential data broadcast required for terminal device；Difference is broadcast
Hair module broadcasts the differential data after intelligence convergence to terminal device.
Further, the terminal device includes differential received module, intelligent diverter module and at least one application；Difference
Receiving module receives difference and broadcasts the differential data that platform is broadcast；The difference number that intelligent diverter module receives differential received module
Each application is distributed to according to the intelligent shunting of progress, and by the differential data after intelligence shunting.
Further, the terminal device includes mobile phone and automobile.
Further, the terminal device and difference broadcast platform and pass through wireless network connection.
A kind of multiple terminals apply differential data broadcasting method more, comprising the following steps:
Step 1, difference broadcasts platform and receives the differential data that base station uploads, and carries out convergence and calculation processing；
Step 2, difference broadcasts all terminal devices of platform poll, finds out more application terminal equipment, and parse needs and broadcast
The differential data of hair；
Step 3, difference broadcasts platform and carries out intelligent converge operation to differential data required for more application terminal equipment；
Step 4, difference broadcasts platform and broadcasts the differential data after intelligence convergence to terminal device；
Step 5, terminal device carries out intelligent shunting to the differential data received, and the differential data after intelligence shunting is divided
Issue each application；
Step 6, each application on terminal device carries out positioning calculation according to the differential data received.
Further, when carrying out intelligent converge operation in the step 3, the frequency of broadcasting that difference broadcasts platform sets for terminal
The maximum of standby all application requests broadcasts frequency, and the differential data format broadcast is the difference that all application requests of terminal device are broadcast
The union of divided data format.
Further, when carrying out intelligence shunting in the step 5, the frequency of broadcasting that difference broadcasts platform is that terminal device is every
A to broadcast frequency using actual request, the differential data format broadcast is that terminal device (13) each application actual request is broadcast
Differential data format.
The data that the present invention broadcasts needs are uniformly processed, and difference broadcasts platform and carries out intelligent evaluation to differential data,
Terminal device is scheduled shunting again, can reach the beneficial effect for saving network bandwidth and flow.
Detailed description of the invention
Fig. 1 is system structure of the invention figure.
Fig. 2 is that difference broadcasts plateform system architecture diagram.
Fig. 3 is terminal device system architecture diagram.
Fig. 4 is flow chart of the present invention.
Specific embodiment
Hereinafter, the present invention is further elaborated in conjunction with the accompanying drawings and embodiments.
Differential data broadcasting system is applied as shown in Figure 1, including that difference broadcasts platform 12, at least 1 in multiple terminals of the present invention more
A base station 11 and at least 1 terminal device 13；Base station 11 has known accurate coordinate, receives satellite-signal, and calculating is come from
Oneself arrives the distance correction of satellite, and differential data is uniformly uploaded to difference and broadcasts platform 12；Difference broadcasts the convergence of platform 12
The differential data that all base stations 11 upload；Difference broadcasts platform 12 and carries out intelligence to differential data required for terminal device 13
Converge operation, and according to the first slightly position of terminal device 13, the differential data after intelligence convergence is broadcast to terminal device 13；
Terminal device 13 needs to receive differential data to carry out precise positioning.
Fig. 2 is that difference broadcasts 12 system architecture diagram of platform, including base station data receiver processing module 121, terminal device
Poller module 122, differential data library 123, intelligent convergence module 124 and difference broadcasting module 125；The processing of base station data receiver
The differential data that module 121 receives and processing base station 11 uploads, and differential data is stored in differential data library by treated
123；Differential data library 123 is connect with terminal device poller module 122 and intelligent convergence module 124；Terminal device poller module
All terminal devices 13 of 122 polls parse the differential data broadcast required for terminal device 13；124 pairs of ends of intelligent convergence module
The differential data broadcast required for end equipment 13 carries out intelligent converge operation；Difference broadcasting module 125 will be after intelligence convergence
Differential data is broadcast to terminal device 13.
Fig. 3 is 13 system architecture diagram of terminal device, including differential received module 131, intelligent diverter module 132 and at least 1
It is a to apply 133；Differential received module 131 receives difference and broadcasts the differential data that platform 12 is broadcast；132 pairs of differences of intelligent diverter module
The differential data for dividing receiving module 131 to receive carries out intelligent shunting, and the differential data after intelligence shunting is distributed to each answer
With 133.
Preferably, the terminal device 13 includes mobile phone and automobile.
Preferably, the terminal device 13 and difference, which broadcast platform 12, passes through wireless network connection.
Apply differential data broadcasting method flow chart as shown in Figure 4 in multiple terminals of the present invention more, comprising the following steps:
Step 1, difference broadcasts platform 12 and receives the differential data that base station 11 uploads, and carries out convergence and calculation processing.
Step 2, difference broadcasts all terminal devices 13 of 12 poll of platform, and finds out in the presence of the terminal device more applied
13, and parse the differential data for needing to broadcast.
Step 3, difference broadcasts platform 12 and carries out intelligent convergence to differential data required for the terminal device 13 more applied
Operation.
When carrying out intelligent converge operation in the step 3, what difference broadcast platform 12 broadcasts frequency as 13 institute of terminal device
Have and broadcast frequency using the maximum of 133 requests, the differential data format broadcast is that all 133 requests of application of terminal device 13 are broadcast
Differential data format union:
For example, it is to broadcast for 5 seconds one that the 1st application request, which broadcasts frequency, in terminal device, the 2nd application request in terminal device
Broadcasting frequency is to broadcast for 10 seconds one, then practical broadcast the differential data of the terminal device was broadcast for 5 seconds one；
The 1st application request broadcasts GPS differential data in terminal device, and the 2nd application request of terminal device broadcasts Beidou
Differential data, then the practical differential data to the terminal device is GPS+ Beidou.
Step 4, difference broadcasts platform 12 and broadcasts the differential data after intelligence convergence to terminal device 13.
Step 5, terminal device 13 carries out intelligent shunting to the differential data received, and is distributed to and needs each of differential data
It is a to apply 133.
When carrying out intelligence shunting in the step 5, the frequency of broadcasting that difference broadcasts platform 12 is that terminal device 13 is each answered
Frequency is broadcast with 133 actual requests, the differential data format broadcast is that 133 actual requests of each application of terminal device 13 are broadcast
Differential data format:
For example, the frequency of broadcasting that terminal device has received after intelligence convergence is 5 seconds one data broadcast.1st application is asked
Asking and broadcasting frequency is to broadcast for 5 seconds one, then the practical differential data to the 1st application in the terminal device is broadcast broadcast for 5 seconds one；Terminal
It is to broadcast for 10 seconds one that the 2nd application request, which broadcasts frequency, in equipment, then the practical differential data to the 2nd application in the terminal device
It broadcasts and was broadcast for 10 seconds one；
Terminal device has received the differential data of the GPS+ Beidou after intelligence convergence.It is poor that 1st application request broadcasts GPS
Divided data, then practical is GPS to the differential data that the 1st application is broadcast in terminal device；2nd application request in terminal device
Beidou differential data is broadcast, then practical is Beidou to the differential data that the 2nd application is broadcast in terminal device.
Step 6, each application 133 on terminal device 13 carries out positioning calculation according to the differential data received.
The present invention does not specially require computer programming language, it is preferred to use JAVA language.
Although the invention has been described by way of example and in terms of the preferred embodiments, but it is not for limiting the present invention, any this field
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical solution makes possible variation and modification, therefore, anything that does not depart from the technical scheme of the invention, and according to the present invention
Technical spirit any simple modifications, equivalents, and modifications to the above embodiments, belong to technical solution of the present invention
Protection scope.
Claims (6)
1. differential data broadcasting method is applied in a kind of multiple terminals more, which comprises the following steps:
Step 1, difference broadcasts platform (12) and receives the differential data that base station (11) upload, and carries out convergence and calculation processing；
Step 2, difference broadcasts all terminal devices of platform (12) poll (13), finds out more application terminal equipment (13), and solve
Analysis needs the differential data broadcast；
Step 3, difference broadcasts platform (12) and carries out intelligence convergence behaviour to differential data required for more application terminal equipment (13)
Make；
Step 4, the differential data that difference broadcasts after platform (12) converges intelligence, which is broadcast, gives terminal device (13)；
Step 5, terminal device (13) carries out intelligent shunting to the differential data received, and the differential data after intelligence shunting is divided
Issue each application (133)；
Step 6, each application (133) on terminal device (13) carries out positioning calculation according to the differential data received；
When carrying out intelligent converge operation in the step 3, what difference broadcast platform (12) broadcasts frequency as terminal device (13) institute
The maximum for having application (133) to request broadcasts frequency, and the differential data format broadcast is that terminal device (13) all applications (133) are asked
Seek the union for the differential data format broadcast；
When carrying out intelligence shunting in the step 5, the frequency of broadcasting that difference broadcasts platform (12) is that terminal device (13) are each answered
Frequency is broadcast with (133) actual request, the differential data format broadcast is that terminal device (13) each application (133) is actually asked
Seek the differential data format broadcast.
2. differential data broadcasting system is applied in a kind of multiple terminals for claim 1 the method more, which is characterized in that including
Difference broadcasts platform (12), at least one base station (11) and at least 1 terminal device (13)；Difference broadcasts platform (12) convergence
The differential data that base station (11) uploads；Difference broadcasts platform (12) and carries out intelligence to differential data required for terminal device (13)
Energy converge operation, and the differential data after intelligence convergence is broadcast and gives terminal device (13).
3. broadcasting system as claimed in claim 2, which is characterized in that it includes base station data that the difference, which broadcasts platform (12),
Receiving processing module (121), terminal device poller module (122), differential data library (123), intelligent convergence module (124) and poor
Divide broadcasting module (125)；The difference number that base station data receiver processing module (121) receives and processing base station (11) uploads
According to, and differential data is stored in differential data library (123) by treated；Differential data library (123) and terminal device poller module
(122) it is connected with intelligent convergence module (124)；All terminal devices of terminal device poller module (122) poll (13), parsing is eventually
The differential data broadcast required for end equipment (13)；Intelligent convergence module (124) is to the difference broadcast required for terminal device (13)
Divided data carries out intelligent converge operation；Differential data after intelligence convergence is broadcast and is set to terminal by difference broadcasting module (125)
Standby (13).
4. broadcasting system as claimed in claim 2, which is characterized in that the terminal device (13) includes differential received module
(131), intelligent diverter module (132) and at least one apply (133)；Differential received module (131) receives difference and broadcasts platform
(12) differential data broadcast；Intelligent diverter module (132) carries out intelligence to the differential data that differential received module (131) receives
It shunts, and the differential data after intelligence shunting is distributed to each application (133).
5. broadcasting system as claimed in claim 2, which is characterized in that the terminal device (13) includes mobile phone and automobile.
6. broadcasting system as claimed in claim 2, which is characterized in that the terminal device (13) and difference broadcast platform (12)
Pass through wireless network connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710190355.5A CN106912076B (en) | 2017-03-27 | 2017-03-27 | Differential data broadcasting system and method are applied in a kind of multiple terminals more |
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| CN201710190355.5A CN106912076B (en) | 2017-03-27 | 2017-03-27 | Differential data broadcasting system and method are applied in a kind of multiple terminals more |
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| CN106912076B true CN106912076B (en) | 2019-05-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426205A (en) * | 2017-07-17 | 2017-12-01 | 北方信息控制研究院集团有限公司 | The efficient broadcasting method of differential data product accessed towards high concurrent user |
| CN107765275B (en) * | 2017-09-04 | 2019-12-27 | 深圳市时空导航科技有限公司 | Wide-area differential positioning method, device, terminal and computer readable storage medium |
| CN108490464B (en) * | 2018-03-21 | 2021-12-14 | 千寻位置网络有限公司 | Network RTK broadcasting method suitable for consumption terminal |
| CN113132920B (en) * | 2020-01-15 | 2022-08-09 | 中移(上海)信息通信科技有限公司 | Data distribution method, device and system |
| CN111679305A (en) * | 2020-06-16 | 2020-09-18 | 四川省天域航通科技有限公司 | Large-scale freight transportation unmanned aerial vehicle positioning system |
| CN114706100B (en) * | 2022-06-07 | 2022-09-30 | 长沙金维信息技术有限公司 | Differential data broadcasting method based on Beidou RDSS |
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Address after: 200438 9 / F, 10 / F, 11 / F, 12 / F, 38 Lane 1688, Guoquan North Road, Yangpu District, Shanghai Patentee after: QIANXUN SPATIAL INTELLIGENCE Inc. Address before: Room j165, 1st floor, building 64, 1436 Jungong Road, Yangpu District, Shanghai, 200433 Patentee before: QIANXUN SPATIAL INTELLIGENCE Inc. |
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