CN115685289A - Method and system for network differential data service of distributed reference station and electronic equipment - Google Patents
Method and system for network differential data service of distributed reference station and electronic equipment Download PDFInfo
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Abstract
The invention relates to a method, a system and electronic equipment for network differential data service of a distributed reference station, and belongs to the technical field of data mapping. The distributed reference station network differential data service method comprises the following steps: dividing a plurality of virtual grids according to the distribution range of a plurality of reference station networks, wherein the plurality of reference station networks and the plurality of virtual grids are in one-to-one correspondence; receiving an access request of a user, wherein the access request comprises position information of the user; determining a target virtual grid closest to a user from the plurality of virtual grids according to the position information of the user and the position information of the plurality of virtual grids; and requesting target differential data from a differential data source in a target reference station network corresponding to the target virtual grid, and sending the target differential data to a user. By the method, cross-regional service can be provided for users, and the problems that the existing RTK service software is limited in high-speed transmission of users, cannot perform cross-regional service, cannot perform cross-system visualization and the like when facing distributed deployment of a large-scale CORS network are solved.
Description
Technical Field
The invention relates to the technical field of data mapping, in particular to a method, a system and electronic equipment for network differential data service of a distributed reference station.
Background
Currently, with the development trend of network integration of Reference stations and user number sea quantification, a CORS (continuous Operating Reference System) built by comprehensively utilizing GNSS (Global Navigation Satellite System), data communication and computer network technologies has become an important component of national space infrastructure.
However, when the existing RTK (Real Time Kinematic) service software based on the VRS (Virtual Reference Station) technology, for example, the network RTK in the chinese patent application with publication number CN114280652A, faces distributed deployment of large-scale CORS networks, there are problems that the user concurrency is limited and the cross-region service cannot be performed.
Disclosure of Invention
In view of this, the present invention provides a method, a system and an electronic device for differentially serving data in a distributed reference station network.
Specifically, the invention is realized by the following technical scheme:
according to a first aspect of the present invention, there is provided a method for a distributed reference station network differential data service, the method comprising: dividing a plurality of virtual grids according to the distribution range of a plurality of reference station networks, wherein the plurality of reference station networks and the plurality of virtual grids are in one-to-one correspondence; receiving an access request of a user, wherein the access request comprises position information of the user; determining a target virtual grid closest to the user from the plurality of virtual grids according to the position information of the user and the position information of the plurality of virtual grids; and requesting target differential data from a differential data source in a target reference station network corresponding to the target virtual grid, and sending the target differential data to a user.
In some embodiments, the distributed reference station network differential data service method further comprises: configuring basic information of a differential data source in a target reference station network; requesting target differential data from a differential data source in a target reference station network corresponding to the target virtual grid, including: acquiring configuration information of a differential data source in a target reference station network; and requesting corresponding target differential data from the differential data source according to the configuration information.
In some embodiments, the differential data source includes a physical station differential data source, a first differential data source, and a second differential data source, and configuring basic information of the differential data source in the target reference station network includes: configuring basic information, space coordinate information, communication protocol information and data type information of an entity base station in an entity station differential data source; configuring network connection information, a network coverage range and a virtual grid interval of a virtual base station of a first differential data source, wherein the first differential data source is a real-time dynamic carrier phase difference data source; and configuring network connection information, a network coverage range and a virtual grid distance of a virtual base station of a second differential data source, wherein the second differential data source is a real-time dynamic code phase differential data source.
According to a second aspect of the present invention, there is provided a distributed reference station network differential data service system, the system comprising means for performing the distributed reference station network differential data service method of the first aspect or any possible implementation manner of the first aspect.
Specifically, the distributed reference station network differential data service system comprises: the method comprises the steps that a differential data resource pool comprises a plurality of virtual grids, the virtual grids are divided according to the distribution range of a plurality of reference station networks, and the reference station networks correspond to the virtual grids one by one; the target transfer system is used for receiving an access request of a user, wherein the access request comprises the position information of the user; determining a target virtual grid closest to a user from the plurality of virtual grids according to the position information of the user and the position information of the plurality of virtual grids; and requesting target differential data from a differential data source in a target reference station network corresponding to the target virtual grid, and sending the target differential data to a user.
In some embodiments, the target transit system includes: the network management system comprises a differential data source configuration module, a data source configuration module and a data source configuration module, wherein the differential data source configuration module is used for configuring basic information of a differential data source in a target reference station network; a database for storing configuration information for differential data sources in a network of target reference stations; the network service system comprises a communication module, wherein the communication module is used for communicating with a user and a target reference station network, so that under the condition of receiving an access request of the user, corresponding target differential data are requested from a differential data source according to configuration information of the differential data source in a database, and the target differential data are sent to the user.
In some embodiments, the differential data source configuration module comprises: the system comprises an entity station differential data source configuration unit, a base station data source configuration unit and a data source configuration unit, wherein the entity station differential data source configuration unit is used for configuring basic information, space coordinate information, communication protocol information and data type information of an entity base station; the first virtual station differential data source configuration unit is used for configuring network connection information, a network coverage range and virtual grid intervals of a virtual base station of a first differential data source in a target reference station network, wherein the first differential data source is a real-time dynamic carrier phase difference data source; and the second virtual station differential data source configuration unit is used for configuring network connection information, a network coverage range and a virtual grid distance of a virtual base station of a second differential data source in the target reference station network, and the second differential data source is a real-time dynamic code phase differential data source.
In some embodiments, the network service system further comprises: and the data processing module is used for receiving the data streams sent by the differential data source and the user and providing an interpretation, storage and query interface for the data streams.
According to a third aspect of the present invention, there is provided a storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the distributed reference station network differentiated data service method of the first aspect or any possible implementation of the first aspect.
According to a fourth aspect of the present invention, there is provided an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the distributed reference station network differential data service method in the first aspect or any possible implementation manner of the first aspect when executing the program.
According to a fifth aspect of the present invention, there is provided a computer program product comprising a computer program which, when executed by a processor, performs the steps of the distributed reference station network differential data service method of the first aspect or any possible implementation form of the first aspect.
The technical scheme provided by the invention at least has the following beneficial effects:
and establishing a gridding differential data resource pool according to the network range of the plurality of CORS networks deployed in a distributed manner. Meanwhile, a service transfer system is built, the service transfer system is communicated with the user, so that under the condition that the user accesses, a corresponding CORS network is selected from the gridded differential data resource pool, the target differential data is requested from a differential data source, and then the target differential data is forwarded to the user. Therefore, a difference resource pool is formed by dividing the virtual grid in a transfer service mode, and a data processing module and a business service module of the RTK service software are separated, so that on one hand, the cross-region service function of the RTK service software is realized, and the high concurrency capability of the RTK service software is improved; on the other hand, high-precision differential data can be provided for a user, and the problems that the user is high in transmission limitation, cross-regional service cannot be achieved, cross-system visualization cannot be achieved and the like when the existing RTK service software faces large-scale CORS network distributed deployment are solved.
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The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the related art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a system architecture of a distributed reference station network differential data service method and system according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a method for serving differential data in a network of distributed reference stations according to an embodiment of the present invention;
fig. 3 is a second schematic flowchart of a distributed reference station network differential data service method according to an embodiment of the present invention;
fig. 4 is a third schematic flowchart of a differential data service method of a distributed reference station network according to an embodiment of the present invention;
fig. 5 is one of the structural block diagrams of the distributed reference station network differential data service system according to the embodiment of the present invention;
fig. 6 is a second block diagram of a structure of a distributed reference station network differential data service system according to an embodiment of the present invention;
fig. 7 is one of the working schematic diagrams of the distributed reference station network differential data service system according to the embodiment of the present invention;
fig. 8 is a second schematic diagram of the operation of the distributed reference station network differential data service system according to the embodiment of the present invention;
fig. 9 is a third schematic diagram of the operation of the distributed reference station network differential data service system according to the embodiment of the present invention;
fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Fig. 1 schematically shows a system architecture of a distributed reference station network differential data service method and system applicable to the embodiment of the present invention.
Referring to fig. 1, a system architecture 100 of a distributed reference station network differential data service method and system according to an embodiment of the present invention includes: terminal devices 101, 102, 103, a network 104 and a server 105. The network 104 serves as a medium for providing communication links between the terminal devices 101, 102, 103 and the server 105. Network 104 may include various connection types, such as wired, wireless communication links, or fiber optic cables, among others.
A user may use terminal devices 101, 102, 103 to interact with a server 105 over a network 104 to receive or send messages or the like. The terminal devices 101, 102, 103 may have a positioning system, an image capturing system, a picture/video playing type application, etc. installed thereon. Other messaging client applications may also be installed, such as shopping-like applications, web browser applications, search-like applications, instant messaging tools, mailbox clients, social platform software, and so forth (by way of example only).
The terminal devices 101, 102, 103 may be various electronic devices that display screens and support positioning, picture/video playing, and may further include a positioning system, an image capturing system, for example, electronic devices including but not limited to smart phones, tablet computers, notebook computers, desktop computers, unmanned vehicles, and the like.
The server 105 may be a server that provides various services, such as a background management server (for example only) that provides service support for data processing of images or videos taken by users using the terminal devices 101, 102, 103. The backend management server may analyze and process the received data such as the image/video processing request, and feed back a processing result (for example, a web page, information, or data obtained or generated according to a user request) to the terminal device.
Or a background server (for example only) for analyzing and processing the position information of the terminal devices 101, 102, 103 to provide service support. The background server may analyze longitude and latitude information, coordinate system information, and the like of the terminal devices 101, 102, 103, and feed back an analysis result (e.g., an actual geographic position, an altitude, and the like of the terminal devices 101, 102, 103) to the terminal devices.
It should be noted that the method for providing the distributed reference station network differential data service according to the embodiment of the present invention may be generally executed by the server 105 or a terminal device with certain computing capability. Accordingly, the system for the distributed reference station network differential data service provided by the embodiment of the present invention may be generally disposed in the server 105 or the terminal device with a certain computing capability. The method for the distributed reference station network differential data service provided by the embodiment of the present invention may also be executed by a server or a server cluster which is different from the server 105 and can communicate with the terminal devices 101, 102, 103 and/or the server 105. Correspondingly, the system for the distributed reference station network differential data service provided by the embodiment of the present invention may also be disposed in a server or a server cluster that is different from the server 105 and is capable of communicating with the terminal devices 101, 102, 103 and/or the server 105.
It should be understood that the number of terminal devices, networks, and servers in fig. 1 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for an implementation.
Referring to fig. 2, an embodiment of the present invention provides a method for a distributed reference station network differential data service, where the method may be applied to an electronic device, such as a PC, a server, a terminal, and the method may include the following steps:
s101, dividing a plurality of virtual grids according to the distribution range of a plurality of reference station networks;
s102, receiving an access request of a user;
s103, determining a target virtual grid closest to the user from the virtual grids according to the position information of the user and the position information of the virtual grids;
s104, requesting target differential data from a differential data source in a target reference station network corresponding to the target virtual grid;
and S105, sending the target differential data to a user.
In the distributed reference station network differential data service method provided by the embodiment of the invention, for a plurality of reference station networks which are distributed and deployed, namely CORS networks, a plurality of virtual grids are divided according to the actual distribution range of each CORS network. In this way, a differential data resource pool is established and obtained, and the information of each virtual grid point can include longitude and latitude coordinate information and connection information of a differential data request. On the basis, under the condition that the distributed reference station network differential data service system receives an access request of a user, the service system determines the distance information between the user requesting access and each virtual grid point according to the position information of the user and the longitude and latitude coordinate information of each virtual grid point, wherein the position information of the user is contained in the user access request, and selects a target virtual grid closest to the user from a plurality of virtual grids.
Further, after determining the target virtual grid, the service system further determines a target reference station network, i.e., a target CORS network, corresponding to the target virtual grid, requests corresponding target differential data from a differential data source in the target CORS network, and forwards the target differential data sent by the differential data source to a user requesting the data. Therefore, a differential resource pool is formed by dividing the virtual grid, a data processing module of the RTK service software is separated from a service module, high-precision differential data and cross-regional service can be provided for a user, and the problems that the user is highly limited, the cross-regional service cannot be realized, the cross-system visualization cannot be realized and the like when the existing RTK service software is deployed in a large-scale CORS network distributed mode are solved.
It can be understood that the reason why the network RTK service software cannot realize cross-regional seamless positioning service of the CORS network is that the data resolving module of the RTK service software is highly coupled with the service module. When a large-scale CORS network is deployed in a distributed mode, information such as an account number, a password, an IP address, a Port and the like configured by a user can only be used in RTK service software on each distributed server, and unified differential data service and user account number management cannot be formed. On the basis, when a user carries out cross-regional CORS network service through terminal equipment, service connection information needs to be manually switched, and the working efficiency of the user in the whole network positioning service is seriously influenced.
Further, it will be appreciated that the VRS technique requires a virtual reference station to be provided at the approximate location of each rover. For the RTK service software based on the VRS technology, under the condition of user quantity modeling, a data processing server of the RTK service software needs to perform a large amount of atmospheric error interpolation modeling operation and virtual observation value generation processing, so that the RTK service software is limited in capability in the aspects of high user concurrency and the like.
Therefore, in the distributed reference station network differential data service method provided by the invention, a gridded differential data resource pool is established according to the network range of a plurality of distributed CORS networks. And meanwhile, establishing a service transfer system, communicating with a user through the service transfer system, so that under the condition that the user accesses, selecting a corresponding CORS network from the gridded differential data resource pool, requesting target differential data from a differential data source in the CORS network, and further forwarding the target differential data to the user. And under the condition that no user accesses, each virtual grid point in the gridded differential data resource pool keeps a silent state. Therefore, the data resolving module of the RTK service software is separated from the business service module by adopting a transfer service mode, on one hand, the cross-region service function of the RTK service software is realized, and the high concurrency capability of the RTK service software is improved; on the other hand, high-precision differential data can be provided for a user, and the accuracy of the positioning service is ensured.
As shown in fig. 3, a distributed reference station network differential data service system is taken as an example to describe a flow of a distributed reference station network differential data service method provided in the embodiment of the present invention. Referring to fig. 3, a method for serving differential data of a distributed reference station network according to an embodiment of the present invention may include the following steps:
s201, configuring basic information of a differential data source in a target reference station network;
s202, dividing a plurality of virtual grids according to the distribution range of a plurality of reference station networks;
s203, receiving an access request of a user;
s204, determining a target virtual grid closest to the user from the virtual grids according to the position information of the user and the position information of the virtual grids;
s205, acquiring configuration information of a differential data source in a target reference station network;
s206, requesting corresponding target differential data from the differential data source according to the configuration information;
and S207, transmitting the target differential data to a user.
In the embodiment of the present invention, the service system further configures basic information of differential data sources of each CORS network in distributed deployment, including the target reference station network. On this basis, in the process that the service system requests corresponding target differential data from the differential data source in the target reference station network, the service system can specifically acquire configuration information for configuring the differential data source in the target reference station network, and then request the corresponding target differential data from the differential data source in the target reference station network according to the configuration information and forward the target differential data to the user. Therefore, the service system configures the basic information of the differential data source of each CORS network, requests the target differential data required by the user from the differential data source in the target reference station network according to the configuration information, ensures the accuracy of the target differential data provided for the user, and further ensures the accuracy of the positioning service provided for the user.
In an actual application process, the differential data source of the CORS network may specifically include an entity station differential data source, a first differential data source, and a second differential data source. The first Differential data source is specifically an RTK Differential data source, the RTK Differential data source is a Differential data source of a virtual base station in RTK service software of each distributed CORS network, the second Differential data source is specifically an RTD (Real Time Differential, real Time dynamic code Differential) Differential data source, and the RTD Differential data source is a Differential data source of a virtual base station in RTD Differential data service software of each distributed CORS network.
Further, in the actual application process, the service system communicates with the user and the target reference station network, so that in the process of acquiring the target differential data from the target reference station network and forwarding the target differential data to the user according to the access request of the user, the method can be realized by a network communication server supporting simultaneous access of multiple differential data sources and multiple terminal users.
Specifically, the core of the network communication server is a processing center supporting the Ntrip protocol, i.e., ntrip Caster. The Ntrip case is equivalent to an independent server which only supports Ntrip type messages in a network communication server, and supports simultaneous access of a plurality of base stations, an RTK server and a user terminal. In addition, in the actual application process, in order to ensure the security and confidentiality of the differential data, the service system can specifically adopt an Ntrip Client type communication mode, and all the requests of the differential data can be executed after being verified.
On the basis, in the process that the network communication server performs data communication with the user and the target reference station network through an Ntrip Client type communication mode, specifically, the network communication server receives an access request of the user and requests corresponding target differential data from an entity station differential data source, an RTK differential data source and an RTD differential data source in the target reference station network according to the access request of the user. Further, after the network communication server receives the target differential data sent by the entity station differential data source, the RTK differential data source and the RTD differential data source, the target differential data is sent to the user through an Ntrip Client type communication mode.
Referring to fig. 4, a method for serving differential data of a distributed reference station network according to an embodiment of the present invention may include the following steps:
s301, configuring basic information, space coordinate information, communication protocol information and data type information of an entity base station in an entity station differential data source;
s302, configuring network connection information, a network coverage range and a virtual grid distance of a virtual base station of a first differential data source;
s303, configuring network connection information, a network coverage range and a virtual grid distance of a virtual base station of a second differential data source;
s304, dividing a plurality of virtual grids according to the distribution range of a plurality of reference station networks;
s305, receiving an access request of a user;
s306, determining a target virtual grid closest to the user from the virtual grids according to the position information of the user and the position information of the virtual grids;
s307, acquiring configuration information of a differential data source in the target reference station network;
s308, according to the configuration information, requesting corresponding target differential data from a differential data source;
and S309, sending the target differential data to a user.
In the embodiment of the present invention, the differential data source of the CORS network may specifically include a physical station differential data source, a first differential data source, and a second differential data source. The first differential data source is a real-time dynamic carrier phase difference data source, that is, an RTK differential data source, and the second differential data source is a real-time dynamic code phase differential data source, that is, an RTD differential data source.
On this basis, in the process that the service system configures the basic information of the differential data source in the target reference station network, the basic information, the spatial coordinate information, the communication protocol information, and the data type information of the entity base station in the entity station differential data source may be specifically configured, the network connection information, the network coverage range, and the virtual grid spacing of the virtual base station of the first differential data source may be configured, and the network connection information, the network coverage range, and the virtual grid spacing of the virtual base station of the second differential data source may be configured. Therefore, basic information of the entity station differential data source, the RTK differential data source and the RTD differential data source of the target reference station network is configured, and accurate target differential data can be provided for a user when the target differential data required by the user is requested from the differential data source in the target reference station network according to the configuration information of each differential data source, so that the accuracy of providing positioning service for the user is ensured.
In an actual application process, the basic information of the physical base station may specifically include information such as a code of the physical base station, a name of the physical base station, a receiver type of the physical base station, and an antenna type of the physical base station. The spatial coordinate information may specifically include coordinate information of an ECEF (Earth-center Earth-Fixed) coordinate system, coordinate information of a geodetic coordinate system, and the like. The communication protocol information may specifically include data transmission protocol information, account name information, password information, IP address information, port information, and the like.
Further, the network connection information of the virtual base station of the first differential data source may specifically include IP address information, port information, account name information, password information, and the like of the virtual base station of the first differential data source. The network connection information of the virtual base station of the second differential data source may specifically include IP address information, port information, account name information, password information, and the like of the virtual base station of the second differential data source.
Based on the same inventive concept, as shown in fig. 5, an embodiment of the present invention further provides a distributed reference station network differential data service system 400, including:
a differential data resource pool 402, where the differential data resource pool 402 includes a plurality of virtual grids 404, the virtual grids 404 are divided according to distribution ranges of a plurality of reference station networks, and the reference station networks and the virtual grids 404 are in one-to-one correspondence;
the target transit system 406 is configured to receive an access request of a user, where the access request includes location information of the user; determining a target virtual grid closest to the user from the plurality of virtual grids 404 according to the position information of the user and the position information of the plurality of virtual grids 404; and requesting target differential data from a differential data source in a target reference station network corresponding to the target virtual grid, and sending the target differential data to a user.
Specifically, as shown in fig. 7, the distributed reference station network differential data service system 400 according to the embodiment of the present invention establishes a meshed differential data resource pool 402 according to the network range of a plurality of distributed CORS networks. Meanwhile, a target relay system 406 is set up, and the target relay system is communicated with the user through the target relay system 406, so that under the condition that the user accesses, a corresponding CORS network is selected from the gridded differential data resource pool 402, target differential data is requested from a differential data source in the CORS network, and then the target differential data is forwarded to the user. Therefore, the data resolving module of the RTK service software is separated from the business service module by adopting a transfer service mode, on one hand, the cross-region service function of the RTK service software is realized, and the high concurrency capability of the RTK service software is improved; on the other hand, high-precision differential data can be provided for a user, and the accuracy of the positioning service is ensured.
In some embodiments, as shown in fig. 6, the target relay system 406 includes:
the network management system 408 comprises a differential data source configuration module 410, wherein the differential data source configuration module 410 is used for configuring basic information of a differential data source in a target reference station network;
a database 412 for storing configuration information for differential data sources in a network of target reference stations;
the network service system 414 includes a communication module 416, where the communication module 416 is configured to communicate with the user and the target reference station network, so as to request the differential data source for corresponding target differential data according to the configuration information of the differential data source in the database 412 and send the target differential data to the user when receiving the access request from the user.
Wherein the network management system 408 and the network service system 414 are seamlessly bridged via the database 412, as shown in figure 8. The network management system 408 is a foreground visual management system, and a manager can manage information such as service interface information, differential data source interface information, grid configuration information, and user information through the network management system 408. The network service system 414 is an external service system, the network service system 414 has no operation interface, the network service system 414 runs in the background, and the network service system 414 obtains the management information in the network management system 408 through the database 412 and performs data communication with the user and the data processing system of each distributed and deployed CORS network based on the management information.
Further, as shown in fig. 9, the communication module 416 communicates data with the user and the target reference station network through an Ntrip Client type communication manner. Specifically, the communication module 416 receives an access request from a user, and requests corresponding target differential data from the physical station differential data source, the RTK differential data source, and the RTD differential data source in the target reference station network according to the access request from the user. Further, after the communication module 416 receives the target differential data sent by the physical station differential data source, the RTK differential data source, and the RTD differential data source, the target differential data is sent to the user through an Ntrip Client type communication manner.
In some embodiments, as shown in fig. 6, the differential data source configuration module 410 includes:
an entity station differential data source configuration unit 418, configured to configure basic information, spatial coordinate information, communication protocol information, and data type information of an entity base station;
a first virtual station differential data source configuration unit 420, configured to configure network connection information, a network coverage area, and a virtual grid distance of a virtual base station of a first differential data source in a target reference station network, where the first differential data source is a real-time dynamic carrier phase difference data source;
the second virtual station differential data source configuration unit 422 is configured to configure network connection information, a network coverage range, and a virtual grid distance of a virtual base station of a second differential data source in the target reference station network, where the second differential data source is a real-time dynamic code phase differential data source.
In some embodiments, as shown in fig. 6, the network service system 414 further includes:
and the data processing module 424 is configured to receive data streams sent by the differential data sources and the user, and provide an interpretation, storage, and query interface for the data streams.
Specifically, as shown in fig. 6, the data processing module 424 further includes an interpretation unit 426, a storage unit 428 and an inquiry unit 430, and during the operation of the distributed reference station network differential data service system 400, the data processing module 424 receives data streams sent by the differential data sources and the users, and provides interpretation, storage and inquiry interfaces for the received data streams according to requirements, so as to provide interpretation, storage and inquiry services for the data streams.
The implementation process of the functions and actions of each unit in the system is specifically described in the implementation process of the corresponding steps in the method, and is not described herein again.
For the system embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment for relevant points. The above-described system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the present invention. One of ordinary skill in the art can understand and implement without inventive effort.
Based on the same inventive concept, embodiments of the present invention further provide a storage medium, on which a computer program is stored, where the program, when executed by a processor, implements the steps of the distributed reference station network differential data service method in any possible implementation manner described above.
Alternatively, the storage medium may be a non-transitory computer readable storage medium, which may be, for example, a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Based on the same inventive concept, an embodiment of the present invention further provides a computer program product, which includes a computer program, and when the program is executed by a processor, the steps of the distributed reference station network differential data service method in any possible implementation manner described above are implemented.
Based on the same inventive concept, referring to fig. 10, an embodiment of the present invention further provides an electronic device, which includes a memory 71 (e.g., a non-volatile memory), a processor 72, and a computer program stored in the memory 71 and executable on the processor 72, where the processor 72 executes the program to implement the steps of the distributed reference station network differential data service method in any possible implementation manner, which may be equivalent to the distributed reference station network differential data service system described above, and of course, the processor may also be used to process other data or operations. The electronic device may be a PC, a server, a terminal, etc.
As shown in fig. 10, the electronic device may further generally include: a memory 73, a network interface 74, and an internal bus 75. In addition to these components, other hardware may be included, which is not described in detail.
It should be noted that the distributed reference station network differential data service system may be implemented by software, which is a logical system formed by the processor 72 of the electronic device in which the system is located reading computer program instructions stored in the non-volatile memory into the memory 73 for execution.
Embodiments of the subject matter and the functional operations described in this specification can be implemented in: digital electronic circuitry, tangibly embodied computer software or firmware, computer hardware comprising the structures disclosed in this specification and their structural equivalents, or a combination of one or more of them. Embodiments of the subject matter described in this specification can be implemented as one or more computer programs, i.e., one or more modules of computer program instructions, encoded on a tangible, non-transitory program carrier for execution by, or to control the operation of, a data processing system. Alternatively or additionally, the program instructions may be encoded on an artificially generated propagated signal, e.g., a machine-generated electrical, optical, or electromagnetic signal, that is generated to encode information for transmission to a suitable receiver system for execution by a data processing system. The computer storage medium may be a machine-readable storage device, a machine-readable storage substrate, a random or serial access memory device, or a combination of one or more of them.
The processes and logic flows described in this specification can be performed by one or more programmable computers executing one or more computer programs to perform corresponding functions by operating on input data and generating output. The processes and logic flows can also be performed by, and a system can also be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit).
Computers suitable for the execution of a computer program include, for example, general and/or special purpose microprocessors, or any other type of central processing unit. Generally, a central processing unit will receive instructions and data from a read-only memory and/or a random access memory. The basic components of a computer include a central processing unit for implementing or executing instructions and one or more memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto-optical disks, or optical disks. However, a computer does not necessarily have such a device. Moreover, a computer may be embedded in another device, e.g., a mobile telephone, a Personal Digital Assistant (PDA), a mobile audio or video player, a game console, a Global Positioning System (GPS) receiver, or a portable storage device such as a Universal Serial Bus (USB) flash drive, to name a few.
Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices (e.g., EPROM, EEPROM, and flash memory devices), magnetic disks (e.g., internal hard disk or removable disks), magneto-optical disks, and CD-ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
While this specification contains many specific implementation details, these should not be construed as limitations on the scope of any invention or of what may be claimed, but rather as descriptions of features specific to particular embodiments of particular inventions. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. In another aspect, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.
Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking and parallel processing may be advantageous. Moreover, the separation of various system modules and components in the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.
Thus, particular embodiments of the subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. Further, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some implementations, multitasking and parallel processing may be advantageous.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method for a distributed reference station network to differentiate data services, the method comprising:
dividing a plurality of virtual grids according to the distribution range of a plurality of reference station networks, wherein the plurality of reference station networks and the plurality of virtual grids are in one-to-one correspondence;
receiving an access request of a user, wherein the access request comprises position information of the user;
determining a target virtual grid closest to the user from the plurality of virtual grids according to the position information of the user and the position information of the plurality of virtual grids;
and requesting target differential data from a differential data source in a target reference station network corresponding to the target virtual grid, and sending the target differential data to the user.
2. The distributed reference station network differential data service method of claim 1, further comprising:
configuring basic information of a differential data source in the target reference station network;
the requesting target differential data from a differential data source in a target reference station network corresponding to the target virtual grid includes:
acquiring configuration information of a differential data source in the target reference station network;
and requesting the corresponding target differential data from the differential data source according to the configuration information.
3. The distributed reference station network differential data service method as claimed in claim 2, wherein the differential data source includes a physical station differential data source, a first differential data source and a second differential data source, and the configuring basic information of the differential data source in the target reference station network includes:
configuring basic information, space coordinate information, communication protocol information and data type information of an entity base station in the entity station differential data source;
configuring network connection information, a network coverage range and a virtual grid distance of a virtual base station of the first differential data source, wherein the first differential data source is a real-time dynamic carrier phase differential data source;
and configuring network connection information, a network coverage range and a virtual grid distance of a virtual base station of the second differential data source, wherein the second differential data source is a real-time dynamic code phase differential data source.
4. A distributed reference station network differential data service system, the system comprising:
a differential data resource pool, wherein the differential data resource pool comprises a plurality of virtual grids, the virtual grids are divided according to distribution ranges of a plurality of reference station networks, and the reference station networks and the virtual grids are in one-to-one correspondence;
the target transfer system is used for receiving an access request of a user, wherein the access request comprises the position information of the user; determining a target virtual grid closest to the user from the plurality of virtual grids according to the position information of the user and the position information of the plurality of virtual grids; and requesting target differential data from a differential data source in a target reference station network corresponding to the target virtual grid, and sending the target differential data to the user.
5. The distributed reference station network differential data service system of claim 4, wherein the target transit system comprises:
the network management system comprises a differential data source configuration module, a data source configuration module and a data source configuration module, wherein the differential data source configuration module is used for configuring basic information of a differential data source in the target reference station network;
a database for storing configuration information for differential data sources in the network of target reference stations;
the network service system comprises a communication module, wherein the communication module is used for communicating with the user and the target reference station network, so as to request corresponding target differential data from the differential data source according to the configuration information of the differential data source in the database under the condition of receiving an access request of the user, and send the target differential data to the user.
6. The distributed reference station network differential data service system of claim 5, wherein the differential data source configuration module comprises:
the system comprises an entity station differential data source configuration unit, a data source processing unit and a data source processing unit, wherein the entity station differential data source configuration unit is used for configuring basic information, space coordinate information, communication protocol information and data type information of an entity base station;
a first virtual station differential data source configuration unit, configured to configure network connection information, a network coverage area, and a virtual grid interval of a virtual base station of a first differential data source in the target reference station network, where the first differential data source is a real-time dynamic carrier phase differential data source;
and the second virtual station differential data source configuration unit is used for configuring network connection information, a network coverage range and a virtual grid distance of a virtual base station of a second differential data source in the target reference station network, wherein the second differential data source is a real-time dynamic code phase differential data source.
7. The distributed reference station network differential data service system according to claim 5 or 6, wherein the network service system further comprises:
and the data processing module is used for receiving the data streams sent by the differential data source and the user and providing an interpretation, storage and query interface for the data streams.
8. A storage medium having a computer program stored thereon, which program, when being executed by a processor, is adapted to carry out the steps of the method of any one of claims 1-3.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of any of claims 1-3 are implemented when the program is executed by the processor.
10. A computer program product comprising a computer program, characterized in that the program realizes the steps of the method of any one of claims 1-3 when executed by a processor.
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