CN111209323A - Spatial geographic information big data processing system - Google Patents
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Abstract
The invention discloses a space geographic information big data processing system, which comprises a data management and application layer, a middle layer and an infrastructure layer, wherein the data management and application layer is used for classifying and grading data information and providing the processed data information to the outside; the middle layer is used for dynamically monitoring the data interaction call in the data management and application layer and recording the process; the infrastructure layer is used for providing software and hardware support for the data management and application layer and the middle layer. According to the invention, by collecting, managing and processing the spatial geographic information data, utilizing a cloud computing technology, a spatial analysis technology, a model analysis technology, a network technology, a database integration technology and the like, and utilizing a big data analysis method, the diversified and distinctive application of the spatial geographic information is realized, and the individual application requirements of different industries and different directions on the spatial geographic information are met.
Description
Technical Field
The invention belongs to the technical field of space geographic information, and particularly relates to a space geographic information big data processing system.
Background
The spatial geographic information is geographic information data acquired by various means, and comprises a plurality of aspects such as natural geographic data, land coverage type data, landform data, soil data, hydrological data, vegetation data, residential area data, river data, administrative boundaries, social and economic data and the like, and the spatial geographic information is characterized by large data volume.
The spatial geographic information mainly comprises three data types, wherein one data type is mapping data such as images and electronic maps; secondly, various discrete data streams, such as various track data generated by positioning terminals such as street view collection vehicles and the like; and thirdly, unstructured data such as pictures, videos and voices are related to positions.
The spatial geographic information has very important application in the industries of environmental monitoring, national survey, agriculture and forestry, municipal administration, smart cities, communication, water conservancy and land disasters, geological minerals, public safety, house property, weather and the like.
Due to different industries, different directions, different spaces and the like, the space geographic information data are various in types, different in space time and scale and different in application requirements, so that the space geographic information data are processed respectively and independently, the resource consumption is high, and the efficiency is low.
Disclosure of Invention
In view of the above problems, the present invention provides a big data processing system of space geographic information, the processing system comprises a data management and application layer, a middle layer and an infrastructure layer, wherein,
the data management and application layer is used for classifying and grading the data information and providing the processed data information to the outside;
the middle layer is used for dynamically monitoring the data interaction call in the data management and application layer and recording the process;
the infrastructure layer is used for providing software and hardware support for the data management and application layer and the middle layer.
Further, the data management and application layer comprises a spatio-temporal data layer and a management service layer, wherein,
the spatio-temporal data layer is used for processing data information and transmitting the processed data information to the management service layer;
and the management service layer is used for providing the received processed data information to the outside through an application program secondary development interface.
Further, the infrastructure layer includes a physical layer, a virtual layer, wherein,
the physical layer is used for providing hardware support for the data management and application layer and the middle layer;
the virtual layer is used for providing software support for the data management and application layer and the middle layer.
Further, the spatio-temporal data layer corresponds to a software service layer in a cloud GIS;
the software-as-a-service layer comprises a data production overall process tracking and management system, a data resource creating and management system and a data result archive filing and management system.
Furthermore, the data production overall process tracking and management system is used for realizing the tracking and management of the data production overall process;
the data production overall process tracking and management system is developed based on a B/S architecture, AJAX, CAS and JQuery.
Furthermore, the data resource creating and managing system is used for performing space-time editing processing, conversion and storage, service creation and updating maintenance on the geospatial data;
the data processing environment of the data resource creating and managing system comprises a GIS environment and a CAD environment;
the data resource creating and managing system is developed based on ArcGIS Engine and CAD secondary development control.
Furthermore, the data result archive filing and management system is used for carrying out digital archive management on electronic data generated in the geographic data production process.
Further, the management service layer corresponds to a platform, namely a service layer, and a data, namely a service layer in the cloud GIS;
the platform, namely the service layer comprises a data service function interface creating and managing system and a data application platform creating and managing system;
the data-as-a-service layer includes a data resource retrieval and service system.
Further, the data service function interface creating and managing system is used for realizing the management of the function module and the function service;
the data service function interface creating and managing system is developed based on ArcGIS Engine, Python and workflow.
Further, the data application platform creation and management system is configured to:
carrying out discretization, generalization and modular division on GIS application system component elements, and constructing a component library to ensure that the GIS application system component elements are independent and separated from each other and leave interfaces with each other;
the method comprises the following steps that a GIS application system is built by a user in an assembled visualization, zero code or approximate zero code mode;
the data application platform creation and management system is developed based on a B/S architecture, XML, Web Service, ASP.
Furthermore, the GIS application system comprises data, functions, service logic, user interfaces and user rights.
Furthermore, the data resource retrieval and service system is used for a common user to quickly search and utilize various geographic data services which are issued in a cloud based on the platform.
Further, the data resource retrieval and service system comprises a functional interface;
the function interface is used for calling OGC map service under AutoCAD;
the functional interface is developed under AutoCAD based on AutoCAD for ArcGISI API.
Further, the infrastructure layer corresponds to an infrastructure, i.e., service layer, in the cloud GIS;
the infrastructure as a service layer comprises a private cloud infrastructure building and management system.
Further, the private cloud infrastructure building and management system is used for managing, virtualizing, monitoring resources and dynamically and flexibly scheduling the infrastructure layer in charge of platform operation;
the private cloud infrastructure building and managing system comprises a basic resource managing module, a site managing module, a system monitoring module, a resource measuring module and a system managing module;
the private cloud infrastructure building and management system is developed based on a B/S framework and a related secondary development interface.
According to the invention, by collecting, managing and processing the spatial geographic information data, utilizing a cloud computing technology, a spatial analysis technology, a model analysis technology, a network technology, a database integration technology and the like, and utilizing a big data analysis method, the diversified and distinctive application of the spatial geographic information is realized, and the individual application requirements of different industries and different directions on the spatial geographic information are met.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
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 prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 shows a logical structure diagram of an embodiment of the present invention;
FIG. 2 illustrates a full lifecycle management flow diagram for data production management and applications, according to an embodiment of the 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a large data processing system of space geographic information, exemplarily, fig. 1 shows a logical structure diagram of an embodiment of the invention, as shown in fig. 1, the processing system comprises a data management and application layer, a middle layer and an infrastructure layer, wherein,
the data management and application layer is used for classifying and grading the data information and providing the processed data information to the outside;
the data management and application layer comprises a space-time data layer and a management service layer, wherein,
the space-time data layer corresponds to various kinds of space-time big data managed by the platform and is used for processing data information and transmitting the processed data information to the management service layer; further, the data information includes basic geographic data and topical data, wherein,
the basic geographic data comprises DEM (digital elevation model), DOM (digital orthophoto map), DLG (digital line map), DRG (digital grid map);
the thematic data comprises planning data, traffic data and geotechnical investigation data.
And the management service layer is corresponding to a module and an interface related to data management and access of the platform and used for providing the received processed data information to the outside through an application program secondary development interface. Further, the management service layer comprises a generation process management unit, a data engine service unit, a data service management unit, a space inquiry service unit, a function service management unit and a space analysis service unit.
Besides the space-time data service, the system also comprises a space data engine service, a space query service, a space analysis processing service and the like. All data and functional services follow the OGC (open geospatial information alliance) standard protocol so that different data services can be aggregated and stacked and different functional services can interoperate.
The middle layer is used for dynamically monitoring the data interaction call in the data management and application layer and recording the process;
the middle layer comprises a dynamic scheduling unit, a host management unit, a virtual machine management unit, a load balancing unit and a resource monitoring unit, and is responsible for managing virtualized resources of an infrastructure layer, providing automatic management service and realizing automatic deployment of the virtual resources, including host management, virtual machine management, dynamic deployment of the resources, dynamic scheduling and service operation condition monitoring.
The infrastructure layer is used for providing software and hardware support for the data management and application layer and the middle layer.
The infrastructure layer comprises a physical layer, a virtual layer, wherein,
the physical layer is used for providing hardware support for the data management and application layer and the middle layer; furthermore, the physical layer comprises hardware resources such as homogenized servers, networks, storage and the like, all the servers adopt the same brand and the same model, and the compatibility of a driver or hardware is met, so that multiple functions such as migration, load balancing, fault tolerance and the like can be realized.
The virtual layer is used for providing software support for the data management and application layer and the middle layer. Further, the virtual layer comprises a virtual service unit, a virtual storage unit, a virtual network unit and a virtualization application unit, and resources such as an operating system, a network, an application program, a server and storage are virtualized by using a virtualization technology to provide virtualized resources and technologies.
Cloud GIS (cloud GIS, which is a method of using various features of cloud computing to support elements of geospatial information, including modeling, storage, processing, and the like, thereby changing a user's conventional GIS application method and construction mode, and using geographic information resources in a more friendly manner, with high efficiency and low cost) includes an infrastructure as a service layer (IaaS), a software as a service layer (SaaS), a platform as a service layer (PaaS), and a data as a service layer (DaaS).
The space-time data layer corresponds to software in a cloud GIS, namely a service layer.
The software, namely the service layer related service, is realized by a data production overall process tracking and management system, a data resource creating and management system and a data result archive filing and management system. Wherein the content of the first and second substances,
the data production overall process tracking and management system mainly realizes the standardized, scientific, systematic and intelligent tracking and management of the data production overall process; the system is based on a B/S architecture (browser And server architecture mode), And is developed by comprehensively adopting technologies such as AJAX (Asynchronous Javascript And XML), CAS (Central Authentication Service, an independent open instruction protocol), JQuery (a fast And simple JavaScript framework) And the like. It should be noted that the system is not limited to the B/S architecture and the technologies such as AJAX, CAS, JQuery, etc. for development, and may also be developed by using other development technologies to implement the functions of the embodiments of the present invention.
The data resource creating and managing system is mainly used for performing space-time editing processing, converting and warehousing, service creating, updating and maintaining and the like on the geographic space data. Aiming at the problems of more geographic space data formats, different storage modes, complex processing conversion and data service creation and updating maintenance and the like, the system faces to mainstream GIS data in the industry and realizes the distributed, 'one-click' and intelligent creation and updating maintenance of massive geographic data services. When updating and maintaining the spatio-temporal data, the system automatically maintains the timestamp and the spatio-temporal index.
Since the geospatial data most commonly used at present mainly includes ArcGIS data and DWG data, the present system provides environments for processing these two types of data, i.e., GIS environment and CAD environment. The GIS environment mainly processes SHP, GeoDatabase and other data in ArcGIS; the CAD environment mainly realizes the conversion of DWG data format and SHP, the map creating service of DWG data and the like. The system is developed based on ArcGIS Engine and CAD secondary development control. It should be noted that the system is not limited to the development of technologies such as ArcGIS Engine and CAD secondary development control, and may also be developed by using other development technologies to implement the functions of the embodiment of the present invention.
The data result file filing and managing system is mainly used for carrying out digital file management on electronic data generated in the geographic data production process, and aims to standardize the management of the file data and realize the comprehensive utilization of the file data. The functions of the system mainly comprise collection and accumulation, inspection and acceptance filing, file arrangement, change management, file cataloging, file backup, file identification, file statistics, release and query, file utilization, file editing and research, metadata management and the like. The system is based on a B/S architecture and is developed by comprehensively adopting technologies such as AJAX, CAS, JQuery and the like.
The management service layer corresponds to a platform, namely a service layer, and a data, namely a service layer in the cloud GIS.
The platform, namely the related service of the service layer, is realized by a data service function interface establishing and managing system, a data application platform establishing and managing system, an application program secondary development API, a function module and a function service;
the data, namely service layer related service, is realized by a space-time data service and a data resource retrieval and service system.
The data service function interface creating and managing system mainly achieves management of the GIS function modules and the function services, facilitates recycling and combined building of the function modules and the function services, and lays a foundation for customization of a GIS application system. The system is developed by comprehensively adopting technologies such as ArcGIS Engine, Python, Workflow (Workflow, automation of part or whole of business process in computer application environment) and the like. The system is not limited to the development of technologies such as ArcGIS Engine, Python, and workflow, and may be developed by using other development technologies to implement the functions of the embodiments of the present invention.
The system is based on a B/S framework and developed by comprehensively adopting XML, Web Serv, ASP.NET and ArcGIS Server under the condition of no expansion, the user application system built by the data application platform has the common basic functions of space-time large data integration application, the user can also perform function expansion according to the requirements of the user on the basis of the basic functions of 8 summary, ① can see and view massive space-time large data, 56 can perform customized development of the local data, such as a dynamic calculation of the time-space data, a dynamic time-space data, a dynamic calculation of the time-space data, a dynamic time-space data-space, a dynamic calculation, a dynamic time-space data-display, a dynamic time-space data-space display, a dynamic time-.
Because the data services in the platform are all published in the cloud, the data resource retrieval and service system provides a data service retrieval and browsing interface for common users in order to facilitate the common users to quickly search and utilize various geographic data services published in the cloud based on the platform. After the user finds the data service, the corresponding data service can be called in the AutoCAD, ArcGIS or other GIS application systems. In order to call OGC (Open Geospatial Consortium) map services under AutoCAD, a functional interface for calling map services under AutoCAD is also developed herein based on AutoCAD for ArcGIS API. The system is not limited to the development by technologies such as AutoCAD for ArcGIS API, and may be developed by other development technologies to implement the functions of the embodiments of the present invention.
Because the open geographic data interoperability specification formulated by the OGC provides a consistent interface definition for accessing heterogeneous geographic data and geographic processing resources in a network environment, in order to facilitate sharing and utilization of space-time big data in the network environment, the embodiment of the invention adopts a service-oriented mode to process all geographic space data into standard geographic data service conforming to the OGC specification to realize integrated sharing of multi-source heterogeneous data, and different space-time data services are deployed in a network cloud in a distributed manner.
The infrastructure layer corresponds to an infrastructure, i.e., a service layer, in the cloud GIS.
The related services of the infrastructure, namely the service layer, are realized by a private cloud infrastructure building and management system.
The private cloud infrastructure building and managing system provides effective support for building, managing and maintaining a high-performance space-time big data storage management cloud environment, solves the bottleneck problem that IT resources are insufficient in the process of space-time big data production management and application, and is mainly responsible for management, virtualization, resource monitoring, dynamic flexible scheduling and the like of a private cloud infrastructure layer of platform operation. The system is divided into five modules, namely basic resource management, site management, system monitoring, resource measurement and system management.
The system is based on a B/S framework, and realizes the establishment and management of a hardware cluster and a resource pool through a related secondary development interface; the VMware vCloud SDK for NET-based secondary development interface realizes the establishment of virtual machines and the configuration of sites on a resource pool, and monitors the use condition of the resource pool and the load condition of the sites in real time. The system is not limited to the development by the techniques such as the B/S architecture and the secondary development interface, and may be developed by other development techniques to implement the functions of the embodiment of the present invention.
The private cloud infrastructure building and managing system, the data production overall process tracking and managing system, the data resource creating and managing system, the data result archive building and managing system, the data service function interface creating and managing system, the data application platform creating and managing system and the data resource retrieving and serving system are all deployed in a cloud environment in a hosting service mode, and seamless butt joint, linkage operation and single sign-on are achieved among the systems.
Illustratively, fig. 2 shows a full lifecycle management flowchart of data production management and application according to an embodiment of the present invention, and as shown in fig. 2, the full lifecycle includes five parts, which are data production management and processing, function module management, data resources, function resources, and data application. Specifically, the method comprises the following steps:
the data production overall process tracking and management system in the data production management and processing distributes the data tasks according to the specified requirements, the distributed results are checked, the data tasks qualified in quality check form result data, and the result data are transmitted to the data resource creating and management system. The data resource creating and managing system stores the result data into a database in the data resource after performing space-time editing processing, then performs service creation, transmits the created service to a data service resource pool in the data resource, and transmits the processed result data and the created service to the data result archive creating and managing system. And the data result archive filing and managing system files the processed result data and the created service and transmits the processed result data and the created service to the electronic archive in the data resource.
And the database in the data resource transmits the result data to a data service resource pool, and the data service resource pool is respectively used for building a GIS application system and retrieving services in the data application.
And a data service function interface in the function module management is established and a management system is used for constructing the function module, managing the function service and transmitting the managed function service to a function service resource pool in the function resource.
And the functional service of the functional service resource pool in the functional resources is used for building a GIS application system in the data application.
A data application platform in data application establishes and manages a system to build a GIS application system to form the application system, and the application system can download result data from electronic files in data resources. The user can call the corresponding data service from the data service resource pool of the data resource in the AutoCAD, ArcGIS or other GIS application systems by carrying out service retrieval in the data resource retrieval and service system.
The embodiment of the invention adopts a hierarchical structure organization of classification and grading for multi-source heterogeneous space-time big data. Firstly, according to the data scale, data are organized into large classes, each large class corresponds to one or more element layers, and each element layer comprises a plurality of geospatial entities. Each geospatial entity is composed of two parts, a geometric object and an attribute or semantic describing the geometric object, and the geospatial entity is the smallest unit of data integration organization. Each element layer is relatively independent in data organization and structure, and operations such as data updating, querying, analyzing and displaying take the element layer as a basic unit.
The embodiment of the invention takes the actual application of the geographic information big data as the key research direction, and the application of the geographic information in four directions of public security, environmental protection, forestry and GIS intelligent park is mainly researched, so that the application scene is expanded, and the personalized data service is provided.
1. Research, development and construction of space geographic big data cloud platform of protected area
1) Completing software research and development of a big data system, and constructing a system cloud computing architecture and service;
2) the method for realizing the service function of the big data platform comprises the following steps: the method comprises the following steps of natural protection area and wetland information management, ecological monitoring management, natural protection area and wetland ecological monitoring, natural protection area and wetland resource management, data storage, authority management, map management, file sharing, warning and early warning and the like.
2. Research, development and construction of GIS (geographic information System) space geographic big data cloud platform
1) The online customization, online use and integrated management of the service scene application are realized by the centralized management of various software, hardware and data resources and by utilizing virtualization and pooling technologies.
2) A cloud GIS service cluster system which is highly scalable and can provide services according to requirements is established, and high performance and high availability of GIS data release and services are realized through resource pooling and clustering management of a plurality of IGServer servers.
3. Research, development and construction of space geographic big data cloud platform for public security and police
1) Unstructured information extraction is carried out, a practical combat application platform of video data is built, and for the practical combat application requirements of public security work, video rapid editing processing, image information structure optimization, cloud computing and video real-time geographic information big data processing technologies are adopted, so that the processing and analysis of industry geographic information video data are improved.
The embodiment of the invention realizes the diversified and distinctive application of the spatial geographic information by collecting, managing and processing the spatial geographic information data, utilizing the cloud computing technology, the spatial analysis technology, the model analysis technology, the network technology, the database integration technology and the like and utilizing the big data analysis method, thereby meeting the individual application requirements of different industries and different directions on the spatial geographic information.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (15)
1. A big data processing system of space geographic information is characterized in that the processing system comprises a data management and application layer, a middle layer and an infrastructure layer, wherein,
the data management and application layer is used for classifying and grading the data information and providing the processed data information to the outside;
the middle layer is used for dynamically monitoring the data interaction call in the data management and application layer and recording the process;
the infrastructure layer is used for providing software and hardware support for the data management and application layer and the middle layer.
2. The big spatial geographic information data processing system according to claim 1,
the data management and application layer comprises a space-time data layer and a management service layer, wherein,
the spatio-temporal data layer is used for processing data information and transmitting the processed data information to the management service layer;
and the management service layer is used for providing the received processed data information to the outside through an application program secondary development interface.
3. The big spatial geographic information data processing system according to claim 1,
the infrastructure layer comprises a physical layer, a virtual layer, wherein,
the physical layer is used for providing hardware support for the data management and application layer and the middle layer;
the virtual layer is used for providing software support for the data management and application layer and the middle layer.
4. The big spatial geographic information data processing system according to claim 2,
the space-time data layer corresponds to software in a cloud GIS, namely a service layer;
the software-as-a-service layer comprises a data production overall process tracking and management system, a data resource creating and management system and a data result archive filing and management system.
5. The big spatial geographic information data processing system according to claim 4,
the data production overall process tracking and managing system is used for realizing the tracking and managing of the data production overall process;
the data production overall process tracking and management system is developed based on a B/S architecture, AJAX, CAS and JQuery.
6. The big spatial geographic information data processing system according to claim 4,
the data resource creating and managing system is used for performing space-time editing processing, converting and warehousing, service creating and updating maintenance on the geospatial data;
the data processing environment of the data resource creating and managing system comprises a GIS environment and a CAD environment;
the data resource creating and managing system is developed based on ArcGIS Engine and CAD secondary development control.
7. The big spatial geographic information data processing system according to claim 4,
the data result file filing and managing system is used for carrying out digital file management on electronic data generated in the geographic data production process.
8. The big spatial geographic information data processing system according to claim 2,
the management service layer corresponds to a platform, namely a service layer, and a data, namely a service layer in the cloud GIS;
the platform, namely the service layer comprises a data service function interface creating and managing system and a data application platform creating and managing system;
the data-as-a-service layer includes a data resource retrieval and service system.
9. The big spatial geographic information data processing system according to claim 8,
the data service function interface creating and managing system is used for realizing the management of the function module and the function service;
the data service function interface creating and managing system is developed based on ArcGIS Engine, Python and workflow.
10. The big spatial geographic information data processing system according to claim 8,
the data application platform creation and management system is used for:
carrying out discretization, generalization and modular division on GIS application system component elements, and constructing a component library to ensure that the GIS application system component elements are independent and separated from each other and leave interfaces with each other;
the method comprises the following steps that a GIS application system is built by a user in an assembled visualization, zero code or approximate zero code mode;
the data application platform creation and management system is developed based on a B/S architecture, XML, Web Service, ASP.
11. The big spatial geographic information data processing system according to claim 10,
the GIS application system comprises data, functions, service logic, a user interface and user permissions.
12. The big spatial geographic information data processing system according to claim 8,
the data resource retrieval and service system is used for a common user to quickly search and utilize various geographic data services which are issued in a cloud based on the platform.
13. The big spatial geographic information data processing system according to claim 12,
the data resource retrieval and service system comprises a functional interface;
the function interface is used for calling OGC map service under AutoCAD;
the functional interface is developed under AutoCAD based on the API for ArArcGIS.
14. The big spatial geographic information data processing system according to claim 1,
the infrastructure layer corresponds to an infrastructure, namely a service layer, in the cloud GIS;
the infrastructure as a service layer comprises a private cloud infrastructure building and management system.
15. The big spatial geographic information data processing system according to claim 14,
the private cloud infrastructure building and managing system is used for managing, virtualizing, monitoring resources and dynamically and flexibly scheduling the infrastructure layer in charge of platform operation;
the private cloud infrastructure building and managing system comprises a basic resource managing module, a site managing module, a system monitoring module, a resource measuring module and a system managing module;
the private cloud infrastructure building and management system is developed based on a B/S framework and a related secondary development interface.
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| CN112860225A (en) * | 2021-01-15 | 2021-05-28 | 哈尔滨鸿德亦泰数码科技有限责任公司 | Intelligent irrigation area e platform with excellent expandability and secondary development structure construction method thereof |
| CN113486132A (en) * | 2021-07-12 | 2021-10-08 | 重庆链图信息技术有限公司 | Complete life cycle management system of geographic unit |
| CN113901158A (en) * | 2021-09-26 | 2022-01-07 | 北京和德宇航技术有限公司 | Satellite remote sensing data ordering service system |
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| CN110334960A (en) * | 2019-07-10 | 2019-10-15 | 万桥信息技术有限公司 | A kind of industrial enterprise's geographical information sharing portal platform |
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| CN112860225A (en) * | 2021-01-15 | 2021-05-28 | 哈尔滨鸿德亦泰数码科技有限责任公司 | Intelligent irrigation area e platform with excellent expandability and secondary development structure construction method thereof |
| CN113486132A (en) * | 2021-07-12 | 2021-10-08 | 重庆链图信息技术有限公司 | Complete life cycle management system of geographic unit |
| CN113486132B (en) * | 2021-07-12 | 2023-06-02 | 重庆链图信息技术有限公司 | Geographic unit full life cycle management system |
| CN113901158A (en) * | 2021-09-26 | 2022-01-07 | 北京和德宇航技术有限公司 | Satellite remote sensing data ordering service system |
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