CN111708752A - Three-dimensional standard model library management system for power transmission equipment - Google Patents
Three-dimensional standard model library management system for power transmission equipment Download PDFInfo
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Abstract
The invention relates to the technical field of electric power information, in particular to a three-dimensional standard model library management system for power transmission equipment. The system is used for realizing rapid combined retrieval of model information of power transmission equipment including towers and insulator strings and information sharing of a three-dimensional standard model library of the power transmission equipment, and has the functions of PMS classified management, loop warehousing, loop editing, city and ground association, universal tower management, insulator string management, transformer substation management and parameterized model export to DWG and data dictionary management. The invention has the following beneficial effects: the invention realizes unified data management of the standardized three-dimensional model service of the operation and inspection business and lays a frame foundation for fusion and sharing of the three-dimensional data of the multi-source power grid. The three-dimensional modeling work efficiency and the three-dimensional model utilization rate of the power grid equipment can be improved really, the interconnection, fusion and sharing of the three-dimensional model data of the power grid equipment can be realized, the deep mining of the value of the three-dimensional data is realized, and the deep and wide application of the three-dimensional data in the field of operation and inspection can be promoted effectively.
Description
Technical Field
The invention relates to the technical field of electric power information, in particular to a three-dimensional standard model library management system for power transmission equipment.
Background
At present, the three-dimensional modeling technology of power grid units is widely applied, and comprises units such as design, infrastructure, operation and maintenance, but the adopted technology of each unit is different, the standard is different, the data source is various, and based on the increasing of various three-dimensional modeling technologies, a unified standard is urgently needed to be established, and the circulation and sharing of data among service units are realized.
In order to solve the problems, the invention provides a three-dimensional standard model library management system for power transmission equipment, which is developed by utilizing a three-dimensional GIS platform EV-Global and is used for realizing power transmission tower and insulator hardware combination classification and model naming of operation and inspection of power transmission equipment ledger information, realizing quick retrieval of key parameters of the power transmission tower and insulator hardware combination, realizing longitudinal and transverse sharing of a three-dimensional standard model library of the power transmission equipment and improving the refinement degree of management work of the three-dimensional standard model library of the power transmission equipment.
Disclosure of Invention
The invention aims to provide a three-dimensional standard model library management system for power transmission equipment, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a three-dimensional standard model library management system of power transmission equipment is used for realizing rapid combined retrieval of model information of power transmission equipment including towers and insulator strings and information sharing of a three-dimensional standard model library of the power transmission equipment and comprises the functions of PMS classified management, loop warehousing, loop editing, city and ground association, general tower management, insulator string management, transformer substation management, DWG (discrete wavelet transform) and data dictionary management by exporting parameterized models.
Preferably, the three-dimensional standard model library management system for the power transmission equipment is developed by utilizing a three-dimensional GIS platform EV-Globe, and is used for realizing power transmission tower and insulator hardware combination classification and model naming of operation and inspection of the standing book information of the power transmission equipment, realizing quick retrieval of key parameters of the power transmission tower and insulator hardware combination, realizing longitudinal and transverse sharing of a three-dimensional standard model library of the power transmission equipment, and improving the refinement degree of management work of the three-dimensional standard model library of the power transmission equipment;
the three-dimensional GIS platform EV-Global is constructed by using a full platform unified development framework, an inner core is constructed in C + + language, C #, Java extension and QT, MFC and Net WinForm multiple interface technologies are supported; the EV-Global space data engine supports a traditional database engine, a file engine, a Web engine and an OGC-based network data access service; through the continuous expansion of the EV-Global space data engine, a space information storage platform popular in the industry can be fused with the EV-Global as much as possible, so that the use complexity of a final user is reduced, and the integrity and the flexibility of GIS comprehensive application are improved.
Preferably, the power transmission equipment three-dimensional standard model library management system uses techniques including,
the Web interface display technology comprises the following steps: adopting a mature interface display technology comprising Ajax, JSP and AnyChart, supporting IE7 or more versions, and adopting a plug-in technology to be compatible with IE 6;
the server development technology comprises the following steps: java technology is adopted, JDK/JRE 1.6, Servlet 2.4/Jsp2.0 and Java EE1.6 standard are adopted;
and (3) encoding specification: the Java code, the client component, the data serialization related file and the data are uniformly coded by UTF-8.
Preferably, the development platform of the three-dimensional standard model library management system of the power transmission equipment adopts the following steps: the system is based on SG-UAP platform secondary development, the system integrates and utilizes the unified authority, the data center and the unified data exchange component provided by the integrated platform to realize user authority control, data sharing among systems and service fusion; the system middleware adopts Java middleware conforming to JEE1.6 standard; the system database adopts a relational database Oracle to store data.
Preferably, main parameters of the model in the three-dimensional standard model library of the power transmission equipment are from a PMS, a large number of equipment parameters in the PMS need to be analyzed, and key common parameters are extracted to accurately construct an equipment model; in order to facilitate management and searching of relevant models, the naming of the models is in line with the system requirements and the national network specifications; the data can be conveniently shared and applied among different systems;
the working implementation steps are as follows:
(1) collecting standing account data and drawing data of the power transmission equipment: the method comprises the steps that a parameterized power transmission equipment model is needed, on the basis of accurate statistics of key parameters of equipment, main sources of the equipment parameters comprise a PMS (permanent magnet synchronous generator) system, a design drawing and national grid specifications, and the equipment parameters comprise tower models, topological relations and size data;
(2) formulating a model naming standard which accords with the power grid application standard and habit: after a large amount of data information is collected, through the analysis of the data, the naming rule of the existing equipment model is searched, the difference between the naming rule and the national network standard and the typical model is researched, and the model naming standard which is in line with the practical application is formulated, wherein the model naming standard comprises the naming of a pole tower model and the naming of an insulator hardware combination; the naming needs to consider the aspects of alternating current and direct current, voltage grade, loop number, position and action of a tower and the shape and characteristics of a tower structure;
(3) the method for quickly searching the standard model of the power transmission equipment comprises the following steps: the standard model library has the function of reducing repeated work in the later period, and the required model can be quickly searched when the model is required; the model file is rapidly positioned in a single or combined mode through the naming, form and voltage grade parameters of the model, and a rapid retrieval function is provided for planning, designing, operation and maintenance;
(4) research on longitudinal synchronization and transverse sharing technologies: the vertical and horizontal synchronous sharing of the standardized model library is realized by researching how to maintain and synchronize data between the headquarters, the provincial companies and the provincial companies.
Preferably, the three-dimensional standard model library management system of the power transmission equipment comprises a PMS data export and classification arrangement function, a data source management function, a power transmission line loop management and editing function, a universal tower management function, an insulator string management function and a parameterized model export function, wherein the PMS data export and classification arrangement function, the data source management function is used for managing a power transmission line loop, the universal tower management function and the insulator string management function are used for exporting; on one hand, the management and searching of the relevant model are convenient, and on the other hand, the three-dimensional standard model library management can be effectively carried out according to the relevant standard requirements of national network.
Preferably, service functions of the three-dimensional standard model library management system of the power transmission equipment are divided into four parts, namely interface management, loop management, model library management and system management, the loop management performs data source management and data processing for a PMS and a power engine according to different data sources, and the model library comprises information retrieval management on the power transmission tower and the insulator string gold combined equipment; the system supports interface style, configuration management and user authority setting management;
the system operating environment design follows the following basic principles: the working requirements of users are met to the maximum extent; on the premise of ensuring the system function, the capital investment is reduced as much as possible; the reliability principle comprises performance reliability, use reliability and maintenance reliability; considering the advancement of the technology and the compatibility between software and hardware within a certain period; the upgradeable principle, due to the rapid development of computer technology, has short product update period and must fully consider the upgradeability of the system.
Preferably, the deployment situation of the three-dimensional standard model library management system of the power transmission equipment is as follows: the system server deployment adopts dual-machine hot backup, the OSs and the databases on all the servers are the same, according to the configuration strategy of load balance, after a client sends a request to the monitoring of a certain service, the server automatically sends the request to the RAC component of the server for processing according to the load balance strategy, the RAC component of the server may also be sent to the RAC component of another server for processing, after the request is processed, the RAC can access the shared storage equipment through cluster software, and an optical fiber switch is adopted between the server and the storage equipment for reading and exchanging data streams.
Preferably, the three-dimensional standard model library management system of the power transmission equipment is based on a service technology framework of a unified standard, ensures the management standard of three-dimensional data, realizes complete conversion and scene service release of various three-dimensional data, and meets the requirements of cross-platform online reference, light browsing and professional application; the three-dimensional earth environment visualization technology comprises the following contents:
three-dimensional earth environment visualization: the process of the earth three-dimensional environment visualization is a process of integrating multi-layer scene visualization of images, DEMs, two-dimensional GIS data, CAD model data, 3DMax three-dimensional model data and place name data; the earth three-dimensional environment visualization is also called a multilayer scene rendering engine, the multilayer scene engine is responsible for the multivariate data import, management, drawing and interaction of scenes and is the core of an earth three-dimensional visualization system, and the image, DEM and two-dimensional GIS data sources are the core of the multilayer scene engine, wherein the construction of the main data source comprises the establishment of an image pyramid and the establishment of a DEM pyramid;
the construction idea of establishing the image pyramid is to decompose an original image into a plurality of sub-images with different spatial resolutions, wherein the sub-image with a larger high resolution size is placed on the lower layer, and the image with a smaller low resolution size is placed on the upper layer, so that a pyramid shape is formed; the formation of the image can adopt low-pass filters with different bandwidths to carry out low-pass filtering on the original image, and the low-pass filter can adopt a Gaussian filter, an average smoothing filter or a wavelet function;
processing and effectively organizing the original data of the digital elevation model are the first steps for realizing high-performance visualization, and a pyramid-shaped detail level model is formed through paging and layering according to the data characteristics of the digital elevation model, so that good support is provided for improving the scene drawing speed;
the data organization mode based on the detail level model is an effective visualization method for realizing a large-scale digital elevation model, namely, the digital elevation model is organized into a multi-level resolution level, and a data block with proper resolution is selected for drawing according to the distance between a calculation viewpoint and a data area, so that the closer the data block is, the clearer the effect is; according to the design concept of the detail level model, a data organization and visualization method of a global large-scale digital elevation model is realized, and the visualization quality and performance are improved;
under the existing network environment and hardware conditions, on the basis of ensuring the simulation degree of a high-precision three-dimensional model, the drawing efficiency of a three-dimensional scene and a scene model is greatly improved, so that the construction of a large-area three-dimensional virtual scene based on mass data and the high-speed browsing of the large-area scene are realized, and a foundation is laid for realizing the digital simulation of lines, towers and the like.
Preferably, the object modeling technique comprises: the object modeling technology is to unify the structure analysis, position analysis and rendering methods of three-dimensional models with different formats by utilizing a unified three-dimensional model driving engine; therefore, the dynamic insertion of a DWG model, a DGN model, a Colada model, an X model and a KMZ model in a system in a plug-in mode is supported; the inserted model carries out a unified serialization process on the shape, the action, the position and the attribute of the model according to an object-oriented abstract modeling principle, namely a sequence identifier is established for the model; based on the sequence identification, establishing three feature libraries of a model, entity attributes and an entity position according to different semantic features of the model for management, thereby realizing interactive and real-time insertion, movement and editing of the three-dimensional model in a three-dimensional scene; by utilizing an object modeling technology and combining buffering and perspective space analysis means, facility construction planning and equipment arrangement planning based on a three-dimensional scene can be realized.
Compared with the prior art, the invention has the following beneficial effects: the invention provides a three-dimensional standard model library management system for power transmission equipment, which realizes unified data management of operation and inspection service standardized three-dimensional model service by researching a creating, issuing and sharing technology based on three-dimensional scene service of a three-dimensional model layer and lays a frame foundation for fusion and sharing of multi-source power grid three-dimensional data. The three-dimensional modeling method and the three-dimensional modeling system can improve the three-dimensional modeling working efficiency and the three-dimensional model utilization rate of the power grid equipment on the spot, can realize interconnection, fusion and sharing of three-dimensional model data of the power grid equipment, realize deep excavation of the value of the three-dimensional data, can effectively promote deep and wide application of the three-dimensional data in the field of transportation and inspection, fully exert the maximum benefit of three-dimensional model resources, powerfully promote the technical progress of transportation and inspection three-dimensional virtual visualization, have positive influence on the aspects of reducing management, economic cost and the like, and have higher economic and social benefits.
(1) And (4) economic benefits. By the method, the data model standardized management can be applied to the operation and inspection intelligent management and control system, the transfer, maintenance and utilization of the power transmission and transformation project digital design result in cross-specialty and cross-system are realized, the fusion and sharing of multi-source power grid three-dimensional data are realized, the intensive utilization of scattered data is realized, the repeated construction of each stage is avoided, and the waste is reduced.
(2) Social benefits. The method can standardize the three-dimensional data standard, open the data barriers of the three-dimensional model for planning, designing, constructing and transporting and inspecting the power grid, unify the three-dimensional data source of the power grid, provide a visual three-dimensional visual support technology for the transporting and inspecting service of the power grid and provide guarantee for the safe and stable operation of the power grid.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the system deployment architecture of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-2, the present invention provides a technical solution: a three-dimensional standard model library management system of power transmission equipment is used for realizing rapid combined retrieval of model information of power transmission equipment including towers and insulator strings and information sharing of a three-dimensional standard model library of the power transmission equipment and comprises the functions of PMS classified management, loop warehousing, loop editing, city and ground association, general tower management, insulator string management, transformer substation management, DWG (discrete wavelet transform) and data dictionary management by exporting parameterized models.
Preferably, the three-dimensional standard model library management system for the power transmission equipment is developed by utilizing a three-dimensional GIS platform EV-Globe, and is used for realizing power transmission tower and insulator hardware combination classification and model naming of operation and inspection of the standing book information of the power transmission equipment, realizing quick retrieval of key parameters of the power transmission tower and insulator hardware combination, realizing longitudinal and transverse sharing of a three-dimensional standard model library of the power transmission equipment, and improving the refinement degree of management work of the three-dimensional standard model library of the power transmission equipment;
the three-dimensional GIS platform EV-Global is constructed by using a full platform unified development framework, an inner core is constructed in C + + language, C #, Java extension and QT, MFC and Net WinForm multiple interface technologies are supported; the EV-Global space data engine supports a traditional database engine, a file engine, a Web engine and an OGC-based network data access service; through the continuous expansion of the EV-Global space data engine, a space information storage platform popular in the industry can be fused with the EV-Global as much as possible, so that the use complexity of a final user is reduced, and the integrity and the flexibility of GIS comprehensive application are improved.
Preferably, the power transmission equipment three-dimensional standard model library management system uses techniques including,
the Web interface display technology comprises the following steps: adopting a mature interface display technology comprising Ajax, JSP and AnyChart, supporting IE7 or more versions, and adopting a plug-in technology to be compatible with IE 6;
the server development technology comprises the following steps: java technology is adopted, JDK/JRE 1.6, Servlet 2.4/Jsp2.0 and Java EE1.6 standard are adopted;
and (3) encoding specification: the Java code, the client component, the data serialization related file and the data are uniformly coded by UTF-8.
Preferably, the development platform of the three-dimensional standard model library management system of the power transmission equipment adopts the following steps: the system is based on SG-UAP platform secondary development, the system integrates and utilizes the unified authority, the data center and the unified data exchange component provided by the integrated platform to realize user authority control, data sharing among systems and service fusion; the system middleware adopts Java middleware conforming to JEE1.6 standard; the system database adopts a relational database Oracle to store data.
Preferably, main parameters of the model in the three-dimensional standard model library of the power transmission equipment are from a PMS, a large number of equipment parameters in the PMS need to be analyzed, and key common parameters are extracted to accurately construct an equipment model; in order to facilitate management and searching of relevant models, the naming of the models is in line with the system requirements and the national network specifications; the data can be conveniently shared and applied among different systems;
the working implementation steps are as follows:
(1) collecting standing account data and drawing data of the power transmission equipment: the method comprises the steps that a parameterized power transmission equipment model is needed, on the basis of accurate statistics of key parameters of equipment, main sources of the equipment parameters comprise a PMS (permanent magnet synchronous generator) system, a design drawing and national grid specifications, and the equipment parameters comprise tower models, topological relations and size data;
(2) formulating a model naming standard which accords with the power grid application standard and habit: after a large amount of data information is collected, through the analysis of the data, the naming rule of the existing equipment model is searched, the difference between the naming rule and the national network standard and the typical model is researched, and the model naming standard which is in line with the practical application is formulated, wherein the model naming standard comprises the naming of a pole tower model and the naming of an insulator hardware combination; the naming needs to consider the aspects of alternating current and direct current, voltage grade, loop number, position and action of a tower and the shape and characteristics of a tower structure;
(3) the method for quickly searching the standard model of the power transmission equipment comprises the following steps: the standard model library has the function of reducing repeated work in the later period, and the required model can be quickly searched when the model is required; the model file is rapidly positioned in a single or combined mode through the naming, form and voltage grade parameters of the model, and a rapid retrieval function is provided for planning, designing, operation and maintenance;
(4) research on longitudinal synchronization and transverse sharing technologies: the vertical and horizontal synchronous sharing of the standardized model library is realized by researching how to maintain and synchronize data between the headquarters, the provincial companies and the provincial companies.
Preferably, the three-dimensional standard model library management system of the power transmission equipment comprises a PMS data export and classification arrangement function, a data source management function, a power transmission line loop management and editing function, a universal tower management function, an insulator string management function and a parameterized model export function, wherein the PMS data export and classification arrangement function, the data source management function is used for managing a power transmission line loop, the universal tower management function and the insulator string management function are used for exporting; on one hand, the management and searching of the relevant model are convenient, and on the other hand, the three-dimensional standard model library management can be effectively carried out according to the relevant standard requirements of national network.
Preferably, service functions of the three-dimensional standard model library management system of the power transmission equipment are divided into four parts, namely interface management, loop management, model library management and system management, the loop management performs data source management and data processing for a PMS and a power engine according to different data sources, and the model library comprises information retrieval management on the power transmission tower and the insulator string gold combined equipment; the system supports interface style, configuration management and user authority setting management;
the system operating environment design follows the following basic principles: the working requirements of users are met to the maximum extent; on the premise of ensuring the system function, the capital investment is reduced as much as possible; the reliability principle comprises performance reliability, use reliability and maintenance reliability; considering the advancement of the technology and the compatibility between software and hardware within a certain period; the upgradeable principle, due to the rapid development of computer technology, has short product update period and must fully consider the upgradeability of the system.
Preferably, the deployment situation of the three-dimensional standard model library management system of the power transmission equipment is as follows: the system server deployment adopts dual-machine hot backup, the OSs and the databases on all the servers are the same, according to the configuration strategy of load balance, after a client sends a request to the monitoring of a certain service, the server automatically sends the request to the RAC component of the server for processing according to the load balance strategy, the RAC component of the server may also be sent to the RAC component of another server for processing, after the request is processed, the RAC can access the shared storage equipment through cluster software, and an optical fiber switch is adopted between the server and the storage equipment for reading and exchanging data streams.
Preferably, the three-dimensional standard model library management system of the power transmission equipment is based on a service technology framework of a unified standard, ensures the management standard of three-dimensional data, realizes complete conversion and scene service release of various three-dimensional data, and meets the requirements of cross-platform online reference, light browsing and professional application; the three-dimensional earth environment visualization technology comprises the following contents:
three-dimensional earth environment visualization: the process of the earth three-dimensional environment visualization is a process of integrating multi-layer scene visualization of images, DEMs, two-dimensional GIS data, CAD model data, 3DMax three-dimensional model data and place name data; the earth three-dimensional environment visualization is also called a multilayer scene rendering engine, the multilayer scene engine is responsible for the multivariate data import, management, drawing and interaction of scenes and is the core of an earth three-dimensional visualization system, and the image, DEM and two-dimensional GIS data sources are the core of the multilayer scene engine, wherein the construction of the main data source comprises the establishment of an image pyramid and the establishment of a DEM pyramid;
the construction idea of establishing the image pyramid is to decompose an original image into a plurality of sub-images with different spatial resolutions, wherein the sub-image with a larger high resolution size is placed on the lower layer, and the image with a smaller low resolution size is placed on the upper layer, so that a pyramid shape is formed; the formation of the image can adopt low-pass filters with different bandwidths to carry out low-pass filtering on the original image, and the low-pass filter can adopt a Gaussian filter, an average smoothing filter or a wavelet function;
processing and effectively organizing the original data of the digital elevation model are the first steps for realizing high-performance visualization, and a pyramid-shaped detail level model is formed through paging and layering according to the data characteristics of the digital elevation model, so that good support is provided for improving the scene drawing speed;
the data organization mode based on the detail level model is an effective visualization method for realizing a large-scale digital elevation model, namely, the digital elevation model is organized into a multi-level resolution level, and a data block with proper resolution is selected for drawing according to the distance between a calculation viewpoint and a data area, so that the closer the data block is, the clearer the effect is; according to the design concept of the detail level model, a data organization and visualization method of a global large-scale digital elevation model is realized, and the visualization quality and performance are improved;
under the existing network environment and hardware conditions, on the basis of ensuring the simulation degree of a high-precision three-dimensional model, the drawing efficiency of a three-dimensional scene and a scene model is greatly improved, so that the construction of a large-area three-dimensional virtual scene based on mass data and the high-speed browsing of the large-area scene are realized, and a foundation is laid for realizing the digital simulation of lines, towers and the like.
Preferably, the object modeling technique comprises: the object modeling technology is to unify the structure analysis, position analysis and rendering methods of three-dimensional models with different formats by utilizing a unified three-dimensional model driving engine; therefore, the dynamic insertion of a DWG model, a DGN model, a Colada model, an X model and a KMZ model in a system in a plug-in mode is supported; the inserted model carries out a unified serialization process on the shape, the action, the position and the attribute of the model according to an object-oriented abstract modeling principle, namely a sequence identifier is established for the model; based on the sequence identification, establishing three feature libraries of a model, entity attributes and an entity position according to different semantic features of the model for management, thereby realizing interactive and real-time insertion, movement and editing of the three-dimensional model in a three-dimensional scene; by utilizing an object modeling technology and combining buffering and perspective space analysis means, facility construction planning and equipment arrangement planning based on a three-dimensional scene can be realized.
It is noted that, herein, 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.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A three-dimensional standard model library management system of power transmission equipment is characterized in that: the system is used for realizing rapid combined retrieval of model information of power transmission equipment including towers and insulator strings and information sharing of a three-dimensional standard model library of the power transmission equipment, and has the functions of PMS classified management, loop warehousing, loop editing, city and ground association, universal tower management, insulator string management, transformer substation management and parameterized model export to DWG and data dictionary management.
2. The three-dimensional standard model library management system for power transmission equipment according to claim 1, wherein: the three-dimensional standard model library management system for the power transmission equipment is developed by utilizing a three-dimensional GIS platform EV-Global, is used for realizing power transmission tower and insulator hardware combination classification and model naming of operation and inspection of the ledger information of the power transmission equipment, realizing quick retrieval of key parameters of the power transmission tower and insulator hardware combination, realizing longitudinal and transverse sharing of a three-dimensional standard model library of the power transmission equipment and improving the refinement degree of management work of the three-dimensional standard model library of the power transmission equipment;
the three-dimensional GIS platform EV-Global is constructed by using a full platform unified development framework, an inner core is constructed in C + + language, C #, Java extension and QT, MFC and Net WinForm multiple interface technologies are supported; the EV-Global space data engine supports a traditional database engine, a file engine, a Web engine and an OGC-based network data access service; through the continuous expansion of the EV-Global space data engine, a space information storage platform popular in the industry can be fused with the EV-Global as much as possible, so that the use complexity of a final user is reduced, and the integrity and the flexibility of GIS comprehensive application are improved.
3. The three-dimensional standard model library management system for power transmission equipment according to claim 1, wherein: techniques used by the power transmission equipment three-dimensional standard model library management system include,
the Web interface display technology comprises the following steps: adopting a mature interface display technology comprising Ajax, JSP and AnyChart, supporting IE7 or more versions, and adopting a plug-in technology to be compatible with IE 6;
the server development technology comprises the following steps: java technology is adopted, JDK/JRE 1.6, Servlet 2.4/Jsp2.0 and Java EE1.6 standard are adopted;
and (3) encoding specification: the Java code, the client component, the data serialization related file and the data are uniformly coded by UTF-8.
4. The three-dimensional standard model library management system for power transmission equipment according to claim 1, wherein: the development platform of the three-dimensional standard model library management system of the power transmission equipment adopts the following steps: the system is based on SG-UAP platform secondary development, the system integrates and utilizes the unified authority, the data center and the unified data exchange component provided by the integrated platform to realize user authority control, data sharing among systems and service fusion; the system middleware adopts Java middleware conforming to JEE1.6 standard; the system database adopts a relational database Oracle to store data.
5. The three-dimensional standard model library management system for power transmission equipment according to claim 1, wherein: the main parameters of the model in the three-dimensional standard model library of the power transmission equipment are from a PMS (permanent magnet synchronous motor), a large number of equipment parameters in the PMS need to be analyzed, and key common parameters are extracted to accurately construct an equipment model; in order to facilitate management and searching of relevant models, the naming of the models is in line with the system requirements and the national network specifications; the data can be conveniently shared and applied among different systems;
the working implementation steps are as follows:
(1) collecting standing account data and drawing data of the power transmission equipment: the method comprises the steps that a parameterized power transmission equipment model is needed, on the basis of accurate statistics of key parameters of equipment, main sources of the equipment parameters comprise a PMS (permanent magnet synchronous generator) system, a design drawing and national grid specifications, and the equipment parameters comprise tower models, topological relations and size data;
(2) formulating a model naming standard which accords with the power grid application standard and habit: after a large amount of data information is collected, through the analysis of the data, the naming rule of the existing equipment model is searched, the difference between the naming rule and the national network standard and the typical model is researched, and the model naming standard which is in line with the practical application is formulated, wherein the model naming standard comprises the naming of a pole tower model and the naming of an insulator hardware combination; the naming needs to consider the aspects of alternating current and direct current, voltage grade, loop number, position and action of a tower and the shape and characteristics of a tower structure;
(3) the method for quickly searching the standard model of the power transmission equipment comprises the following steps: the standard model library has the function of reducing repeated work in the later period, and the required model can be quickly searched when the model is required; the model file is rapidly positioned in a single or combined mode through the naming, form and voltage grade parameters of the model, and a rapid retrieval function is provided for planning, designing, operation and maintenance;
(4) research on longitudinal synchronization and transverse sharing technologies: the vertical and horizontal synchronous sharing of the standardized model library is realized by researching how to maintain and synchronize data between the headquarters, the provincial companies and the provincial companies.
6. The three-dimensional standard model library management system for power transmission equipment according to claim 1, wherein: the three-dimensional standard model library management system of the power transmission equipment comprises PMS data export and classification arrangement, data source management, loop management and editing of the power transmission line, universal pole tower management, insulator string management and parameterized model export into DWG files; on one hand, the management and searching of the relevant model are convenient, and on the other hand, the three-dimensional standard model library management can be effectively carried out according to the relevant standard requirements of national network.
7. The three-dimensional standard model library management system for power transmission equipment according to claim 1, wherein: the service functions of the three-dimensional standard model library management system of the power transmission equipment are divided into four parts, namely interface management, loop management, model library management and system management, wherein the loop management is used for carrying out data source management and data processing on a PMS (Power management System) and a power engine according to different data sources, and the model library comprises information retrieval management on the power transmission tower and the insulator string gold combined equipment; the system supports interface style, configuration management and user authority setting management;
the system operating environment design follows the following basic principles: the working requirements of users are met to the maximum extent; on the premise of ensuring the system function, the capital investment is reduced as much as possible; the reliability principle comprises performance reliability, use reliability and maintenance reliability; considering the advancement of the technology and the compatibility between software and hardware within a certain period; the upgradeable principle, due to the rapid development of computer technology, has short product update period and must fully consider the upgradeability of the system.
8. The three-dimensional standard model library management system for power transmission equipment according to claim 1, wherein: the deployment situation of the three-dimensional standard model library management system of the power transmission equipment is as follows: the system server deployment adopts dual-machine hot backup, the OSs and the databases on all the servers are the same, according to the configuration strategy of load balance, after a client sends a request to the monitoring of a certain service, the server automatically sends the request to the RAC component of the server for processing according to the load balance strategy, the RAC component of the server may also be sent to the RAC component of another server for processing, after the request is processed, the RAC can access the shared storage equipment through cluster software, and an optical fiber switch is adopted between the server and the storage equipment for reading and exchanging data streams.
9. The three-dimensional standard model library management system for power transmission equipment according to claim 1, wherein: the three-dimensional standard model library management system of the power transmission equipment is based on a service technology framework of a unified standard, ensures the management standard of three-dimensional data, realizes complete conversion and scene service release of various three-dimensional data, and meets the requirements of cross-platform online lookup, lightweight browsing and professional application; the three-dimensional earth environment visualization technology comprises the following contents:
three-dimensional earth environment visualization: the process of the earth three-dimensional environment visualization is a process of integrating multi-layer scene visualization of images, DEMs, two-dimensional GIS data, CAD model data, 3DMax three-dimensional model data and place name data; the earth three-dimensional environment visualization is also called a multilayer scene rendering engine, the multilayer scene engine is responsible for the multivariate data import, management, drawing and interaction of scenes and is the core of an earth three-dimensional visualization system, and the image, DEM and two-dimensional GIS data sources are the core of the multilayer scene engine, wherein the construction of the main data source comprises the establishment of an image pyramid and the establishment of a DEM pyramid;
the construction idea of establishing the image pyramid is to decompose an original image into a plurality of sub-images with different spatial resolutions, wherein the sub-image with a larger high resolution size is placed on the lower layer, and the image with a smaller low resolution size is placed on the upper layer, so that a pyramid shape is formed; the formation of the image can adopt low-pass filters with different bandwidths to carry out low-pass filtering on the original image, and the low-pass filter can adopt a Gaussian filter, an average smoothing filter or a wavelet function;
processing and effectively organizing the original data of the digital elevation model are the first steps for realizing high-performance visualization, and a pyramid-shaped detail level model is formed through paging and layering according to the data characteristics of the digital elevation model, so that good support is provided for improving the scene drawing speed;
the data organization mode based on the detail level model is an effective visualization method for realizing a large-scale digital elevation model, namely, the digital elevation model is organized into a multi-level resolution level, and a data block with proper resolution is selected for drawing according to the distance between a calculation viewpoint and a data area, so that the closer the data block is, the clearer the effect is; according to the design concept of the detail level model, a data organization and visualization method of a global large-scale digital elevation model is realized, and the visualization quality and performance are improved;
under the existing network environment and hardware conditions, on the basis of ensuring the simulation degree of a high-precision three-dimensional model, the drawing efficiency of a three-dimensional scene and a scene model is greatly improved, so that the construction of a large-area three-dimensional virtual scene based on mass data and the high-speed browsing of the large-area scene are realized, and a foundation is laid for realizing the digital simulation of lines, towers and the like.
10. The three-dimensional standard model library management system for power transmission equipment according to claim 9, wherein: the object modeling technique includes: the object modeling technology is to unify the structure analysis, position analysis and rendering methods of three-dimensional models with different formats by utilizing a unified three-dimensional model driving engine; therefore, the dynamic insertion of a DWG model, a DGN model, a Colada model, an X model and a KMZ model in a system in a plug-in mode is supported; the inserted model carries out a unified serialization process on the shape, the action, the position and the attribute of the model according to an object-oriented abstract modeling principle, namely a sequence identifier is established for the model; based on the sequence identification, establishing three feature libraries of a model, entity attributes and an entity position according to different semantic features of the model for management, thereby realizing interactive and real-time insertion, movement and editing of the three-dimensional model in a three-dimensional scene; by utilizing an object modeling technology and combining buffering and perspective space analysis means, facility construction planning and equipment arrangement planning based on a three-dimensional scene can be realized.
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