CN103596178B - Single-station CORS system and differential data transmission and authentication method thereof - Google Patents
Single-station CORS system and differential data transmission and authentication method thereof Download PDFInfo
- Publication number
- CN103596178B CN103596178B CN201310627724.4A CN201310627724A CN103596178B CN 103596178 B CN103596178 B CN 103596178B CN 201310627724 A CN201310627724 A CN 201310627724A CN 103596178 B CN103596178 B CN 103596178B
- Authority
- CN
- China
- Prior art keywords
- station
- rover station
- user
- gateway
- rover
- 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.)
- Active
Links
Abstract
The invention provides a single-station CORS system and a differential data transmission and authentication method thereof. The method is based on a Mesh network architecture, and comprises the steps that 101), the Mesh network architecture is constructed on the basis of user moving stations located in a certain area, namely, all the user moving stations located in the certain area are divided into two kinds: the first kind of the user moving stations are used as gateway nodes of the Mesh network, and the first kind of the user moving stations are named as gateway moving stations; the second kind of the user moving stations are used as access points of the Mesh network, and are named as ordinary moving stations; 102), the gateway moving stations are in communication with a data processing center of the single-station CORS system, and gateway moving station authentication is accomplished, or the real-time differential data sent by the data processing center are received; 103), the ordinary moving stations are in communication with the gateway moving stations, authentication is conducted through the gateway moving stations, and the real-time differential data are obtained; the step 102) and the step 103) do not have a time occurrence sequence.
Description
Technical field
The present invention relates to the NTRIP communication protocol utilizing improvement under Mesh network framework in single station CORS system
The technology of differential data is transmitted, a kind of single station CORS system of concrete offer and differential data transmission thereof between rover station
And authentication method.
Background technology
Single station CORS system is by base station, data processing centre, user's rover station, four portions of data communication part
It is grouped into.
Base station: base station is made up of fixed reference station equally distributed in a certain scope.It is responsible for gathering GPS/ north
Bucket moonscope initial data is also delivered to data processing centre, provides system health monitoring service simultaneously.
Data processing centre: be the control centre of CORS system, is used for receiving base station data, carries out at data
Reason, forms Differential positioning user data, the data file of composition certain format, is distributed to the rover station of user.Number
It is the core cell of CORS system according to processing center, is also that high accuracy Real-time and Dynamic positions the crucial institute being achieved
?.The real-time observed data that data processing centre is continuously gathered for 24 hours according to base station resolves,
And provide code phase/carrier phase real-time to rover station with international form by the GPRS/3G network of operator
Differential correcting information.
User's rover station: include user profile receive system, RTK alignment system, afterwards with Rapid precision locating system
System and autonomic navigation system and monitoring location system etc..User's rover station receives the reality that data processing centre sends
Time differential data, calculate accurate coordinates.
The data communication of data communication part: CORS includes that fixed reference station is to the communication of data processing centre and data
Processing center is to the communication of user's rover station.Base station is to control centre (that is, data processing centre or base station)
Communication network is responsible for the data of base station are transferred to data processing centre in real time；Data processing centre and user's stream
The communication network at dynamic station is responsible for giving user rover station by real time differential data.In general, flow with user in base station
The GPRS that communication is operator stood or 3G network, and the real time differential data that all user's rover stations obtain should
This is consistent.
The main communication protocol of CORS system is NTRIP (Networked Transport of RTCM via Internet
Protocol) agreement, NTRIP agreement is to be initiated by German federal drawing and geodetic office, recognizes through RTCM committee
Card, the open a kind of professional application layer protocol used.It supports multiple data stream, as initial data, differential data,
Ionosphere correcting information, meteorological data etc..NTRIP achieves the transmission on the internet of GPS differential data transmission,
Based on HTTP1.1, use ICP/IP protocol, transmit for GLONASS data, utilize the Internet
Transmission and shared Differential positioning correction data, to support be accurately positioned and navigate.NTRIP is an application layer protocol,
User is connected through the internet to central server, connected mode can pass through mobile IP network GSM, GPRS,
EDGE, UMTS etc..
NTRIP agreement is made up of four parts: data source NTRIP Source, the client (NTRIP on rover station
Clients), reference station end (NTRIP Servers) and data processing centre's end (NTRIP Caster).Wherein data process
Center plays the role of a server, and rover station is distributed by data processing centre with the communication of reference station end and manages
Reason.Data transmission and the Internet between reference station, data processing centre, rover station are completely compatible.
1) NTRIP Source: reference GPS receiver data process the RTCM-104 of DGPS and RTK produced
Differential data stream.Can be the forms such as RTCM, CMR.
2) NTRIP Server: by NTRIP Source, data stream is transferred to NTRIP Caster, plays data relay
Effect.Generally have and run the computer of GPS reference station software or a GPS being attached directly to the Internet.Ginseng
Examine the end IP address that also uses control centre to distribute, station and be connected to control centre.
3) NTRIP Caster: be the core component of NTRIP, according to rule generals such as the IP address of data source, coordinates
The data that NTRIP Server transmits are distributed, and form the ID list of data source, and are the data of NTRIP Client
Request provides user's verification management interface；The different data streams of turnover reference station end and client is processed by it,
It is physically a server group, carries the function served as bridge of communication between reference station and user.It is based on the Internet
(HTTP) service, controls the turnover of different pieces of information central server in the controlling.Data stream is received also from reference station end
Process, the code of reference station, password, account etc. belonging to data stream are set simultaneously.Request message is received from client,
See that client is the most registered and passes through certification, RTK data stream can be received and dispatched.Additionally data processing centre also has
With the networked capabilities of the system of closing on (or Reference network), including: support NTRIP, it is achieved system data networking and service
Networking, supports service registry and service roaming function, can increase reference station quantity, meet and expand requirement etc..
4) NTRIP Client data consumer, receives NTRIP Caster by IP wireless network and sends over data.
The mode that this data center broadcasts data to user's rover station has following several shortcoming: (1) flows along with user
The increase of dynamic station quantity, this traditional client-server mode (C/S model) adds mode of unicast to push number
According to service system due to server performance and the restriction of the network bandwidth, often result in system bottleneck, reduce Service Quality
Amount.(2), when when operation, region needs relatively multi-user's rover station, each user's rover station is with data center respectively
Being authenticated and broadcast data, relatively time consuming and manpower (3) is when user's rover station is more, and user can be according to receiving number
According to flow produce higher expense.
Summary of the invention
It is an object of the invention to, there is many lacking for overcoming existing data center to broadcast data to user's rover station
Fall into, thus the differential data transmission of a kind of single station CORS system and authentication method and system are provided.
For achieving the above object, the present invention provides a kind of single station CORS system, comprises: base station, and data process
Center, data communication part and some user's rover stations, it is characterised in that all of user's rover station forms Mesh
The network architecture, i.e. will be located in all user's rover stations in certain region and is divided into following two classes:
First kind user's rover station is as the gateway node of Mesh network, and first kind user's flow process station is referred to as gateway
Rover station；
Equations of The Second Kind user's rover station is as the access point of Mesh network, and Equations of The Second Kind user's flow process station is referred to as common stream
Dynamic station；
And above-mentioned gateway rover station communicates with the data processing centre of single station CORS system, complete gateway rover station and recognize
The real time differential data that card or reception data processing centre send；And conventional flow station communicates with gateway rover station, logical
Cross gateway rover station be authenticated and obtain real time differential data.
Above-mentioned data processing centre comprises further: calculation server, content server and log server；Wherein,
Described calculation server through being calculated real time differential data, and sends after receiving the data that reference station transmits
To content server；The real time differential data of reception are carried out recording and preserving backup by described content server；Described
Log server is responsible for recording the event in the minds of Data processing and log daily record.
The present invention also provides for user's rover station authentication method of a kind of single CORS system of standing, and the method is based on above-mentioned
System, described method comprises:
Step 101) gateway rover station communicates with the data processing centre of single station CORS system, completes gateway rover station
Certification；
Step 102) conventional flow station communicated with gateway rover station, is authenticated by gateway rover station；When common stream
When gateway rover station communication authentication can not be passed through in dynamic station, Data processing heart assist gateway rover station is needed commonly to flow
Dynamic station certification.
Above-mentioned steps 102) comprise further:
Step 102-1) if the authentication information of conventional flow station transmission is consistent, then with the information that gateway rover station stores
This gateway rover station passes through Mesh network and sends real time differential data to conventional flow station；
Step 102-2) if the authentication information of conventional flow station transmission is inconsistent with the information that gateway rover station stores,
Then authentication information is forwarded to data processing centre by gateway rover station, is then handled as follows:
If authentication information is not over the certification of data processing centre, then data processing centre is sent out to gateway rover station
Sending the message not over certification, then the message not over certification is relayed to ordinary node by gateway rover station
Rover station；If the certification that authentication information is by data processing centre, then data processing centre is sent out to gateway rover station
Sending the message by certification, then gateway rover station is sent to by the conventional flow station of certification by Mesh network again
Real time differential data.
In addition present invention also offers a kind of differential data transmission method of single CORS system of standing, the method is based on upper
The system stated, described method comprises:
When conventional flow station needs differential data, first conventional flow station sends request to gateway rover station, if
When gateway rover station has the differential data needed for this conventional flow station, gateway rover station sends difference to conventional flow station
Data；If during differential data needed for gateway rover station not this general Websites, by gateway rover station to data
Manage center requests differential data, and data request obtained by gateway rover station are distributed to conventional flow node.
Optionally, the Mesh that first can add according to Mesh network protocol search when user's rover station start
Network, if the Mesh network having this user's rover station to add, applies for adding；Without this user's rover station
The Mesh network that can add or this user's rover station add the application of Mesh network and are rejected, then this user stream
Dynamic station directly communicates with data center, and this user's rover station is set to the new of Mesh network by data processing centre
Gateway node, will be divided into first kind user's rover station by this user's rover station.
Optionally, when certain first kind user's rover station shuts down or leaves Mesh network, this user's rover station notifies
Data processing centre and each user's rover station connected with the existence of this user's rover station；When certain Equations of The Second Kind user is flowed
When Mesh network is left in shutdown of standing, this user's rover station notifies what it was connected gateway rover station.
Optionally, above-mentioned gateway rover station is communicated with data processing centre by GPRS network or 3G network.
Compared with prior art, the invention has the beneficial effects as follows: have employed Mesh network framework not have
Quickly arrange net in the case of the place of backbone network or network condition are severe.Due to user's rover stations all in the same area
Required differential data is identical, and the user rover station group in this region only needs a node to communicate with base station, receives
Differential data.The authentication function key being responsible for user of this node section simultaneously.Therefore the pressure of server is alleviated,
The communication cost reducing payment operator is relatively low.Utilize Mesh network networking to make this system have expansible simultaneously
Property, decentralization, availability, reliability, high performance-price ratio, the feature of load balancing.
Accompanying drawing explanation
Fig. 1 is that the present invention provides single base station CORS system architecture diagram with Mesh network framework；
Fig. 2 is the flow chart by utilizing Mesh network transmission real time differential data that the embodiment of the present invention provides；
Fig. 3 is the flow chart by utilizing NTRIP agreement transmission real time differential data that the embodiment of the present invention provides.
Detailed description of the invention
With embodiment, the method for the invention is described in detail below in conjunction with the accompanying drawings.
The purpose of the present invention is exactly to utilize up-to-date Mesh network technology, utilizes under a kind of Mesh network framework of invention
The technology transmitting differential data between user's rover station of the NTRIP agreement improved.
Wireless Mesh netword (WMN, Wireless Mesh Network, be also called wireless mesh network) is to have merged shifting
Dynamic Ad hoc network and have a kind of high power capacity being characterized with multi-hop relay of infrastructure network structure, two-forty,
The distributed wireless multihop network of flexible networking.Wireless Mesh netword in network topology with mobile Ad hoe network
Similar, but the most of node of network is in static or weak mobile status, and change in topology is less.Wireless Mesh netword master
Carry the business that Internet is closed that commutes, the Business Stream between any pair node of a small amount of carrying.Wireless Mesh
Network broadband access, improve the aspect such as the network coverage, low cost structure have uniqueness advantage it is considered to be under
The wireless version of generation the Internet.Between these features and advantage are very suitable for as CORS system user rover station
The network architecture of communication.
Mesh network and the comparison of conventional wireless network
The Mesh network being implemented on 802.11 links is referred to as WLAN Mesh, mainly by gateway node
(MPP), access point (MAP) and Mesh router (MP) composition.Inherit wlan network low cost,
While the features such as deployment is wide, WLAN Mesh have also obtained the covering extension wide, easy of Mesh network, vigorousness
Etc. advantage.
Owing to have employed Mesh network framework in this technical scheme, data center and user's rover station
Communication process changes the most therewith, it is therefore desirable to optimize NTRIP agreement under this network architecture.
According to the feature of Mesh network, user's rover station is divided into gateway rover station and two kinds of conventional flow station, gateway
The main of rover station is communicated with data processing centre by GPRS/3G network, completes certification and receives real time differential number
According to function.Ordinary node rover station communicates with gateway rover station, sends authentication information, if authentication information and net
Close the consistent of rover station, then gateway rover station sends real time differential data by Mesh network；If inconsistent, will
It is forwarded to data processing centre, and without by the certification of data processing centre, data processing centre is to gateway
Rover station sends the message not over certification, and this message is transmitted to ordinary node rover station by gateway rover station, if
By certification, data processing centre sends the message by certification to gateway rover station, and gateway rover station passes through Mesh
Network sends real time differential data.Details Of Agreement is as follows:
1. gateway rover station communicates with data processing centre
(1) if gateway rover station does not send password and such as sends:
GET/BUCU1HTTP/1.0
User-Agent:NTRIP GNSSInternetRadio/1.2.0
Data processing centre will send a message to it with http protocol, and form is:
HTTP/1.0401Unauthorized
Then will send second message to gateway rover station, form is as follows:
Server:NTRIPCaster/1.0
WWW-Authenticate:Basic realm="/BUCU1"
Content-Type:text/html
Connection: close
<html><head><title>401 Unauthorized</title></head><body bgcolor=black
text=white
link=blue alink=red>
<h1><center>The server does not recognize your privileges to the requested entity
y/stream</center></h1>
</body></html>
(2) gateway rover station successfully have sent the message containing password
GET /BUCU1 HTTP/1.0
User-Agent:NTRIP GNSSInternetRadio/1.2.0
Authorization:Basic aHVnb2JlbjpodWdvYmVuMTIz
Wherein the content after Authorization is that user name password (by user name: password combination) carries out Base64
Result after coding.As liuke obtains bGl1a2U6bGl1a2U=after Base64 encodes.
(3) solicited message received is authenticated by server end.If username and password is not over certification, then
To returning error flag information (ERRORBad Password).
(4) if by certification, first server end returns SOURCETABLE 200 OK to client, then sends out
Send data.
2. ordinary node rover station and gateway rover station center to center communications
(1) if ordinary node rover station does not send password and such as sends:
GET/BUCU1HTTP/1.0
User-Agent:NTRIPGNSSInternetRadio/1.2.0
Gateway rover station will send a message with http protocol, and form is
HTTP/1.0 401Unauthorized
Then second message will be sent to ordinary node rover station
Server:NTRIPCaster/1.0
WWW-Authenticate:Basicrealm="/BUCU1"
Content-Type:text/html
Connection:close
<html><head><title>401 Unauthorized</title></head><body bgcolor=black
text=white
link=blue alink=red>
<h1><center>The server does not recognize your privileges to the requested entity
y/stream</center></h1>
</body></html>
(2) ordinary node rover station successfully have sent the message containing password
GET/BUCU1HTTP/1.0
User-Agent:NTRIP GNSSInternetRadio/1.2.0
Authorization:Basic aHVnb2JlbjpodWdvYmVuMTIz
Wherein the content after Authorization is that user name password (by user name: password combination) carries out Base64
Result after coding.As liuke obtains bGl1a2U6bGl1a2U=after Base64 encodes.
(3) if this username and password is consistent with gateway rover station, then SOURCETABLE 300 OK is returned,
Then gateway rover station sends data by Mesh network.
(4) if this username and password and gateway rover station are inconsistent, gateway rover station forwards the data to clothes
Business device, the solicited message received is authenticated by server end.If username and password is not over certification, then to
Gateway rover station returns error flag information (ERRORBad Password), and this information is transmitted to by gateway rover station
Conventional flow station；If by certification, first server end returns SOURCETABLE 400OK to client, so
Rear gateway server sends data by Mesh network.
The technical solution adopted for the present invention to solve the technical problems is: CORS base station server is the interior of differential data
Hold server and certificate server.The NTRIP that server was improved by the GPRS/3G network utilisation of operator
Agreement particular flow station in a certain region sends real time differential data, and this rover station is the net in Mesh network
Close.Other rover stations in this region, by this rover station of MSA safety approach district composition Mesh network, receive in real time
Differential data.Wherein the rover station serving as gateway in this Mesh network is responsible for directly communicating with data processing centre,
Sending and receive authentication information and real time differential data, the rover station of ordinary node is led to gateway by Mesh network
Letter, receives certification and real time differential data from gateway.
Embodiment
System after improvement is used for realizing forming Mesh network between user's rover station and plays real time differential data, mainly
Solve to send the bandwidth of base station deficiency problem that magnanimity information causes.
(1) the CORS system based on Mesh network technology of the present invention comprises as shown in Figure 1: base station, number
According to processing center, data communication part and user's rover station.Reference station in base station receives the original of the GPS/ Big Dipper
Data also send the data of reception to data processing centre.Data processing centre comprises further: calculation server,
Content server and log server.Described calculation server receive reference station transmit data after through calculating
Obtain real time differential data, and be sent to content server.The real time differential data that described content server will receive
Carrying out recording and preserving backup, described log server is responsible for recording the event in the minds of Data processing and log daily record.
Certain user's rover station in one region is set to the gateway of Mesh network, and these flow as the user of gateway
Stand for communicating with data processing centre, i.e. receive, by GPRS or 3G network, the reality that data processing centre sends
Time differential data.The gateway of other rover stations and setting of being positioned at this region communicates, and is received real by gateway
Time differential data.
(2) user's rover station of being illustrated in figure 2 in CORS system based on Mesh network technology add and from
Open the flow chart of Mesh network:
The first step, the data that data processing centre gathers according to reference station calculate real time differential data.
The reference station of single station CORS system records the GPS/ Big Dipper data of original observation and sends it to data process
Center, data processing centre calculates real time differential data according to original observed data and other data.
The rover station communication of the mesh gateway of second step, user's rover station and setting.
As the effect of user's rover station of mesh gateway be (1) by the GPRS/3G network of operator directly with
Data processing centre communicates, and receives real time differential data；(2) safeguard that current Mesh network route.
3rd step, transmits data between user's rover station.
First the Mesh net that can add according to the relevant protocol search of Mesh network when user's rover station start
Network, if there being Mesh network, applies for adding.Application without Mesh network or addition network is rejected
Then this user's rover station directly communicates with data center, and this rover station will become the gateway of new Mesh network.
4th step, user's rover station leaves the Mesh network having been added to
What this user's rover station was connected net is notified when the shutdown of user's rover station or when leaving Mesh network
Close rover station；Or
When user's rover station shuts down or leaves Mesh network, notice and this user's rover station have connected
User's rover station.
(3) flow process of real time differential data is broadcast between the NTRIP agreement rover station improved according to Fig. 3.Below
Describe and the rover station being set to gateway is called for short gateway rover station, the user's rover station being not provided as gateway is called for short
For ordinary node rover station.
The first step: the main of gateway rover station is communicated with data processing centre by GPRS/3G network, and then completes
Certification and the function receiving real time differential data.
Second cloth: ordinary node rover station communicates with gateway rover station, sends authentication information.
3rd step: if authentication information is consistent with gateway rover station, then gateway rover station is sent by Mesh network
Real time differential data.
4th step: if inconsistent, transfer it to data processing centre, without passing through data processing centre
Certification, data processing centre sends not over the message of certification to gateway, and this message is transmitted to commonly by gateway
Node rover station, if by certification, data processing centre sends the message by certification to gateway, and gateway passes through
Mesh network sends real time differential data to conventional flow station.
It should be noted last that, above example is only in order to illustrate technical scheme and unrestricted.Although
With reference to embodiment, the present invention is described in detail, it will be understood by those within the art that, to the present invention
Technical scheme modify or equivalent, without departure from the spirit and scope of technical solution of the present invention, it is equal
Should contain in the middle of scope of the presently claimed invention.
Claims (11)
1. user's rover station authentication method of single CORS system of standing, the method is based on one list station CORS system
System, comprises: base station, data processing centre, and data communication part and some user's rover stations, its feature exists
In, all of user's rover station forms Mesh network framework, i.e. will be located in all user's rover stations in certain region
It is divided into following two classes:
First kind user's rover station is as the gateway node of Mesh network, and first kind user's flow process station is referred to as gateway
Rover station；
Equations of The Second Kind user's rover station is as the access point of Mesh network, and Equations of The Second Kind user's flow process station is referred to as common stream
Dynamic station；
And above-mentioned gateway rover station communicates with the data processing centre of single station CORS system, complete gateway rover station and recognize
The real time differential data that card or reception data processing centre send；And conventional flow station communicates with gateway rover station, logical
Cross gateway rover station be authenticated and obtain real time differential data；
Described method comprises:
Step 101) gateway rover station communicates with the data processing centre of single station CORS system, completes gateway rover station
Certification；
Step 102) conventional flow station communicated with gateway rover station, is authenticated by gateway rover station；When common stream
When gateway rover station communication authentication can not be passed through in dynamic station, Data processing heart assist gateway rover station is needed commonly to flow
Dynamic station certification.
User's rover station authentication method of single CORS system of standing the most according to claim 1, it is characterised in that
Described data processing centre comprises further: calculation server, content server and log server；
Wherein, described calculation server receive reference station transmit data after through being calculated real time differential number
According to, and it is sent to content server；
The real time differential data of reception are carried out recording and preserving backup by described content server；
Described log server is responsible for recording the event in the minds of Data processing and log daily record.
User's rover station authentication method of single CORS system of standing the most according to claim 1, it is characterised in that
Described step 102) comprise further:
Step 102-1) if the authentication information of conventional flow station transmission is consistent, then with the information that gateway rover station stores
This gateway rover station passes through Mesh network and sends real time differential data to conventional flow station；
Step 102-2) if the authentication information of conventional flow station transmission is inconsistent with the information that gateway rover station stores,
Then authentication information is forwarded to data processing centre by gateway rover station, is then handled as follows:
If authentication information is not over the certification of data processing centre, then data processing centre is sent out to gateway rover station
Sending the message not over certification, then the message not over certification is relayed to ordinary node by gateway rover station
Rover station；If the certification that authentication information is by data processing centre, then data processing centre is sent out to gateway rover station
Sending the message by certification, then gateway rover station is sent to by the conventional flow station of certification by Mesh network again
Real time differential data.
User's rover station authentication method of single CORS system of standing the most according to claim 1, it is characterised in that
First the Mesh network that can add according to Mesh network protocol search when user's rover station start,
If the Mesh network having this user's rover station to add, apply for adding；Can add without this user's rover station
The Mesh network entered or this user's rover station add the application of Mesh network and are rejected, then this user's rover station with
Data center directly communicates, and this user's rover station is set to the new gateway joint of Mesh network by data processing centre
Point, will be divided into first kind user's rover station by this user's rover station.
User's rover station authentication method of single CORS system of standing the most according to claim 1, it is characterised in that
When certain first kind user's rover station shuts down or leaves Mesh network, this user's rover station notice data process
Center and each user's rover station connected with the existence of this user's rover station；
When Mesh network is left in the shutdown of certain Equations of The Second Kind user's rover station, this user's rover station notifies what it was connected
Gateway rover station.
User's rover station authentication method of single CORS system of standing the most according to claim 1, it is characterised in that
Described gateway rover station is communicated with data processing centre by GPRS network or 3G network.
7. a differential data transmission method for single CORS system of standing, the method based on one list station CORS system,
Comprise: base station, data processing centre, data communication part and some user's rover stations, it is characterised in that
All of user's rover station forms Mesh network framework, i.e. will be located in all user's rover stations in certain region and divides
For following two classes:
First kind user's rover station is as the gateway node of Mesh network, and first kind user's flow process station is referred to as gateway
Rover station；
Equations of The Second Kind user's rover station is as the access point of Mesh network, and Equations of The Second Kind user's flow process station is referred to as common stream
Dynamic station；
And above-mentioned gateway rover station communicates with the data processing centre of single station CORS system, complete gateway rover station and recognize
The real time differential data that card or reception data processing centre send；And conventional flow station communicates with gateway rover station, logical
Cross gateway rover station be authenticated and obtain real time differential data；
Described method comprises:
When conventional flow station needs differential data, first conventional flow station sends request to gateway rover station, if
When gateway rover station has the differential data needed for this conventional flow station, gateway rover station sends difference to conventional flow station
Data；If during differential data needed for gateway rover station not this general Websites, by gateway rover station to data
Manage center requests differential data, and data request obtained by gateway rover station are distributed to conventional flow node.
The differential data transmission method of single CORS system of standing the most according to claim 7, it is characterised in that
Described data processing centre comprises further: calculation server, content server and log server；
Wherein, described calculation server receive reference station transmit data after through being calculated real time differential number
According to, and it is sent to content server；
The real time differential data of reception are carried out recording and preserving backup by described content server；
Described log server is responsible for recording the event in the minds of Data processing and log daily record.
The differential data transmission method of single CORS system of standing the most according to claim 7, it is characterised in that
First the Mesh network that can add according to Mesh network protocol search when user's rover station start,
If the Mesh network having this user's rover station to add, apply for adding；Can add without this user's rover station
The Mesh network entered or this user's rover station add the application of Mesh network and are rejected, then this user's rover station with
Data center directly communicates, and this user's rover station is set to the new gateway joint of Mesh network by data processing centre
Point, will be divided into first kind user's rover station by this user's rover station.
The differential data transmission method of single CORS system of standing the most according to claim 7, it is characterised in that
When certain first kind user's rover station shuts down or leaves Mesh network, this user's rover station notice data process
Center and each user's rover station connected with the existence of this user's rover station；
When Mesh network is left in the shutdown of certain Equations of The Second Kind user's rover station, this user's rover station notifies what it was connected
Gateway rover station.
11. differential data transmission methods according to claim 7, it is characterised in that described gateway rover station
Communicated with data processing centre by GPRS network or 3G network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627724.4A CN103596178B (en) | 2013-11-28 | 2013-11-28 | Single-station CORS system and differential data transmission and authentication method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627724.4A CN103596178B (en) | 2013-11-28 | 2013-11-28 | Single-station CORS system and differential data transmission and authentication method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103596178A CN103596178A (en) | 2014-02-19 |
| CN103596178B true CN103596178B (en) | 2017-01-11 |
Family
ID=50086120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310627724.4A Active CN103596178B (en) | 2013-11-28 | 2013-11-28 | Single-station CORS system and differential data transmission and authentication method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103596178B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833994B (en) * | 2015-04-15 | 2017-06-16 | 华东师范大学 | A kind of RTK BEI-DOU position systems and its method based on MANET mode |
| CN106301675B (en) * | 2015-05-27 | 2019-08-06 | 武汉光谷北斗控股集团有限公司 | A kind of CORS data encoding Transmission system being applicable in long haul communication |
| CN107959666B (en) * | 2016-10-18 | 2020-11-03 | 千寻位置网络有限公司 | Method and device for subscribing and publishing data in large-scale CORS station broadcasting system |
| CN106772511B (en) * | 2017-01-19 | 2019-06-14 | 湖南北云科技有限公司 | A kind of distribution cloud RTK localization method and system |
| CN106997054A (en) * | 2017-03-31 | 2017-08-01 | 北京臻迪科技股份有限公司 | A kind of dispensing device, reception device, data transmission method and Transmission system |
| CN107872516A (en) * | 2017-10-23 | 2018-04-03 | 千寻位置网络有限公司 | Centimeter Level real-time positioning system and implementation method based on mixed cloud |
| CN107920387A (en) * | 2017-11-27 | 2018-04-17 | 上海华测导航技术股份有限公司 | A kind of method that receiver difference is realized using WIFI LANs |
| CN108061910B (en) * | 2017-12-06 | 2021-02-19 | 广州极飞科技有限公司 | Networking method and device based on phase difference and differential positioning system |
| CN108833540B (en) * | 2018-06-15 | 2021-06-18 | 成都纵横融合科技有限公司 | Unmanned aerial vehicle aerial photography universe image-control-free CORS ad hoc network method |
| CN109743679B (en) * | 2019-01-25 | 2021-05-11 | 潍坊同达电子科技有限公司 | Differential positioning system for satellite navigation and implementation method thereof |
| CN111131511A (en) * | 2019-12-31 | 2020-05-08 | 湖南省测绘科技研究所 | CORS cross-platform cooperative service method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003318978A (en) * | 2002-04-26 | 2003-11-07 | Toshiba Corp | Network system, server, terminal electronic apparatus, and data transfer method |
| CN101614801A (en) * | 2009-06-19 | 2009-12-30 | 广州中海达卫星导航技术股份有限公司 | A kind of double-frequency GPS receiver and CORS system |
| CN201438216U (en) * | 2009-06-19 | 2010-04-14 | 广州中海达卫星导航技术股份有限公司 | GNSS receiver |
-
2013
- 2013-11-28 CN CN201310627724.4A patent/CN103596178B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003318978A (en) * | 2002-04-26 | 2003-11-07 | Toshiba Corp | Network system, server, terminal electronic apparatus, and data transfer method |
| CN101614801A (en) * | 2009-06-19 | 2009-12-30 | 广州中海达卫星导航技术股份有限公司 | A kind of double-frequency GPS receiver and CORS system |
| CN201438216U (en) * | 2009-06-19 | 2010-04-14 | 广州中海达卫星导航技术股份有限公司 | GNSS receiver |
Non-Patent Citations (1)
| Title |
|---|
| 单站CORS双星系统的构建及其在水文观懂中的应用研究;孙振勇等;《重庆市水利学会2009年年会优秀论文汇编》;20091203;正文第2页第5行至第4页第8行 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103596178A (en) | 2014-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103596178B (en) | Single-station CORS system and differential data transmission and authentication method thereof | |
| WO2022021997A1 (en) | Network convergence method and networking method for network convergence, and device and storage medium | |
| CN107079050B (en) | Service layer session migration and sharing | |
| US9705736B2 (en) | Method and system for a personal network | |
| KR102182167B1 (en) | Method for modifying m2m service setting and apparatus therefor | |
| DE112020002310T5 (en) | V2X SERVICES TO PROVIDE TRIP-SPECIFIC QOS PREDICTIONS | |
| DE112020004736T5 (en) | EDGE COMPUTING TECHNOLOGIES FOR TRANSPORT LAYER CONGESTION CONTROL AND POINT-OF-PRESENCE OPTIMIZATIONS BASED ON ADVANCED ADVANCED QoS OF SERVICE NOTIFICATIONS | |
| CN115175130A (en) | Method and apparatus for multiple access edge computing service for mobile user equipment | |
| CN106230973B (en) | A kind of file sharing method based on social networks | |
| CN106170969B (en) | Context management | |
| CN109314887A (en) | It is connected to the mobile core network of virtualization | |
| CN107736078A (en) | Location-based delivery of context | |
| CN105453597B (en) | Charging of relay devices | |
| US10791020B2 (en) | Distributed 802.11S mesh network using transformer module hardware for the capture and transmission of data | |
| WO2021223507A1 (en) | Communication method and apparatus, and chip | |
| CN105338053A (en) | Intelligent IOV (Internet of Vehicles) system based on cloud platform | |
| Penttinen | 5G Second phase explained: The 3GPP Release 16 enhancements | |
| US11422864B2 (en) | Advanced resource link binding management | |
| Debbabi et al. | 5G network slicing: Fundamental concepts, architectures, algorithmics, projects practices, and open issues | |
| EP3482547B1 (en) | Flow aggregation and routing for multi-connectivity client devices | |
| US20230336957A1 (en) | Systems and methods for emergency broadcast using delegated discovery | |
| CN115622935A (en) | Network-based path processing method, system and storage medium | |
| Sonntag et al. | Economic feasibility of multipath protocols in mobile Internet of Things applications | |
| CN115226103A (en) | Communication method and device | |
| CN106102056A (en) | High in the clouds WiFi communication system and message identifying thereof and roaming messages recognition methods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |