CN104424515A - Novel BeiDou technology and GIS technology-based tour group real-time management system - Google Patents
Novel BeiDou technology and GIS technology-based tour group real-time management system Download PDFInfo
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Abstract
The invention relates to a novel BeiDou technology and GIS technology-based tour group real-time management system. A component GIS development tool is a product of computer technology development and represents the development direction of GIS development; the component GIS development tool not only has a standard development platform and simple standard interfaces easy to use, but also can realize free and flexible reorganization; the core technology of the component GIS development tool is component object [2] model (COM) technology of Microsoft; and ActiveX control technologies are mainly adopted to realize a new generation of component GIS development tool. The novel BeiDou technology and GIS technology-based tour group real-time management system is advantageous in seamless integration and flexibility; and a GIS developer does not need to grasp special GIS system development languages, and can realize GIS system development as long as the GIS developer is familiar with Windows platform-based universal integrated development environment, grasps the attributes, methods and events of controls.
Description
(1) field
The novel travel party's real-time management system based on the Big Dipper technology and GIS technology of the present invention belongs to electronic application field.
(2) brief introduction
Geographic Information System (Geographic Information System or Geo-Information system, GIS) is also called " GeoscienceInformation System " or " environment and resources information system " sometimes.It is a kind of specific very important space information system.
It is under computing machine hardware and software system is supported, the relevant geographic distributed data in epigeosphere (comprising atmospheric envelope) space all or in part gathered, stores, manage, computing, analysis, display and description technological system.
(3) define
Real-time management (Just In Time): the ultimate principle of JIT is supply-decided model.Namely supplier is according to the requirement (or claiming billboard) of demanding party, according to the requirement such as kind, specification, quality, quantity, time, place of demanding party's demand, by item dispenser to the place of specifying.Seldom send, quite a fewly to send, lately to send, also not lately to send, the article that send are wanted each and every one to ensure the quality of products, and can not have any waste product.JIT method of supplying has a lot of benefit, mainly contains following three aspects:
1. zero inventory.User needs how many, and just supply is how many.Stock can not be produced, the amount of circulating funds used.
2. maximum saving.The commodity of user's not demand, just need not order, the defective products such as commodity overstocking, out-of-date qualitative change can be avoided to waste, and also can avoid the expenses such as handling, carrying and stock.
3. zero waste product.JIT can limit waste product to greatest extent and to flow the loss caused.Waste product can only rest on supplier, can not provide and deliver to client.
Geographic Information System (GIS, Geographic Information System) of science with cartography and remote sensing and computer science in combination, be applied in different fields widely, it is the computer system for inputting, storing, inquire about, analyze and show geodata, along with the development of GIS, also have and claim GIS to be " Geographical Information Sciences " (Geographic Information Science), in recent years, title GIS is also had to be " geographic information services " (Geographic Information service).
GIS is a kind of computer based instrument, and it can carry out treatment and analysis (being in brief, become figure and analysis to the phenomenon that the earth exists with event) to spatial information.
GIS technology integrates the visualization effect of this for map uniqueness and geography-analysis function and general database manipulation (such as inquire about and statistical study etc.).
GIS and the maximum difference of other infosystems are the storage administration analyses to spatial information, thus make its in the public widely and individual enterprises and institutions explanation event, predict the outcome, there is practical value in plan strategy etc.
GIS can be divided into following five parts:
Personnel are most important ingredients in GIS.Developer must define the various tasks be performed in GIS, development process program.
Skilled operating personnel can overcome the deficiency of GIS software function usually, but contrary situation is just false.
Best software also up operation personnel cannot know nothing brought negative interaction to GIS.
Data, data available accurately can have influence on the result of inquiry and analysis.
Hardware, whether convenient and possible the performance impact of hardware, to the processing speed of software to data, use the way of output.
Software, not only comprises GIS software, also comprises various database, drawing, statistics, image processing and other program.
Process, GIS requires clearly to define, and consistent method generates the correct result verified.
GIS belongs to a class of infosystem, and difference is that it can operate and process geographical comparable data.Geographical comparable data describes position and the attribute of earth surface (comprising space under atmospheric envelope and more shallow earth's surface) Space Elements, two kinds of geodata compositions in GIS:
Spatial data, relevant with Space Elements geometrical property; Attribute data, provides the information of Space Elements.
Geographic Information System (GIS) and GPS (GPS), remote sensing system (RS) are collectively referred to as 3S system.
Geographic Information System (GIS) is a kind of data management system with infosystem space specialized form.In a strict sense, this be one have concentrated, store, operation and display geographical reference information computer system.Such as, according to position in a database, data are identified.Practitioner also thinks that whole generalized information system comprises the data of operating personnel and input system usually.
Geographic Information System (GIS) technology can be applied to science investigation, resource management, administering of property, development plan, drawing and route planning.
Such as, a Geographic Information System (GIS) can make crash programme person comparatively change places when disaster and calculate the emergency reaction time, or utilizes generalized information system to find that those need the not contaminated wetland of protection.
Feature
Public geo-location basis;
There is collection, manages, analyze and export the ability of multiple geospatial information;
System drives with analytical model, has extremely strong spatial synthesis analysis and performance prediction ability, and can produce high-level geography information;
For the purpose of Geographical Study and geographical decision-making, it is the interactively appraisal and spatial decision support system of a personal-machine.
Information source
If the rainfall in your state, place and your photo in overhead, place county can be connected, just can judge which block wetland can dry up when some of 1 year.
A generalized information system just can carry out such analysis, and the information of separate sources can be applied by different forms.Basic demand for source data is the position determining variable.
Position may by the x of longitude, latitude and height above sea level, y, and z coordinate marks, or by other geocoding systems such as ZIP code, again or highway mile mark represent.
Any variable deposited of can locating can be fed back to GIS.
Some government organs and non-government organization are manufacturing the Computer Database directly can accessing GIS.
Can by data layout dissimilar in map input GIS.The form that the numerical information conversion identifiable design not being map view can utilize by generalized information system simultaneously.Such as, by analyzing the satellite digital image that generated by remote sensing, can generate one with the numerical information layer about vegetative coverage like map class.
Equally, demographic census or hydrology list data also can be converted into the map view as subject information layer in generalized information system.
Data represents
GIS data has showed real world objective objects (highway, Land_use change, height above sea level) in the form of digital data.
Real world objective objects can be divided into two abstract concepts:
Discrete objects (as house) and continuous print object domain (as rainfall amount or height above sea level).
Two kinds of methods that these two kinds of abstractions store data main in generalized information system are:
Grid (grid) and vector.
Grid (grid) data are made up of the row and column depositing unique value storage unit.
It and grid (grid) image are similar, except using suitable color, the numerical value of unit record also may be a sorted group (such as situation of land use), a continuous print value (such as rainfall amount) or a null value of record when data are not available.
The resolution of raster dataset depends on the mesh width of ground unit.
Usual storage unit represents the square region on ground, but also can be used for representing other shape.
Raster data both can be used for representing one piece of region, also can be used for expression material object.
Vector data make use of geometric figure such as point, line (series of points coordinate), or face (shape is decided by line) shows objective objects.
Such as, in house segmentation, represent produce border with polygon, come Precise Representation position to put.
Vector can be used for representing the field with consecutive variations equally.
Level line and sealene triangle graticule mesh (TIN) is utilized to represent height above sea level or other continually varying values.
The point that the record of TIN connects into an irregular grid be made up of triangle for these is assessed.
The face at triangle place represents topographical surface.
Grid or Vector Data Model is utilized also to have shortcoming to express real existing advantage.
Raster data is arranged on points all in face and all records same value, and vector format only stores data in the place needed, and this just makes the space of the storage needed for the former be greater than the latter.
The operation covered can be realized easily for raster data, and for much more difficult vector data.
Vector data can be revealed as the vector graphics on traditional map, and raster data will be will present fuzzy shape with the border of display object during Image texture.
Except the spatial data of expressing with geometric vector coordinate or grid cell position, other Non-spatial Data also can be stored.
In vector data, these additional datas are the attribute of objective objects.
Such as, the polygon of forest reserves may comprise an identifier value and the information about tree families.
In raster data, cell value can attribute information storage, but can record relevant identifier as to other forms equally.
The novel travel party's real-time management system data collection based on the Big Dipper technology and GIS technology of the present invention
Data acquisition---inputs data---and it occupies the most of the time of GIS practitioner in system.
Have multiple method to input data in GIS, it stores in a digital format wherein.
The available data be imprinted on paper or mylar map can be digitized or scan to produce numerical data.
Digitizer produces vector data as operational character tracing point, line and polygonal border from map.Swept molding method can produce the raster data that can be further processed and generate vector data.
The novel travel party's real-time management system measurement data based on the Big Dipper technology and GIS technology of the present invention can be directly inputted in GIS from the digital data acquisition system measuring apparatus.From GPS (GPS)---the position obtained another kind of survey instrument, also can be directly inputted in GIS.
Remotely-sensed data plays an important role equally in Data Collection, and is made up of the multiple sensors be attached on platform.
Sensor comprises video camera, digital scanner and laser radar, and platform is then usual to be made up of aircraft and satellite.
The novel travel party's real-time management system major part numerical data based on the Big Dipper technology and GIS technology of the present invention derives from picture interpretation and aerophoto.
Softcopy workstation is used for the feature that digitizing directly obtains from the stereoscopic pair of digital picture.
These systems allow data with two dimension or three-dimensional seizure, and their height above sea level directly obtains from the stereoscopic image Alignment measuring of photogrammetry principle.
Now, simulation aerophoto is first scanned and then is input to soft copy system, but along with high-quality digital camera more and more cheap, this step also just can be omitted.
Satellite remote sensing provides another important sources of spatial data.
Here satellite uses different sensor bags to measure the reflection coefficient of the part of electromagnetic spectrum or the radiowave launched as radar from active sensor passively.Remote sensing is collected can process the raster data identifying interested object and class such as land cover pattern further.
Except collection and input space data, attribute data also will be input in GIS.For vector data, this comprises the additional information about object in systems in which.
After in input data to GIS, usually also to edit, carry out eliminating error, or process further.
" topology is correct " just some advanced analysis must can be carried out for vector data.Such as in network of highways, line must be connected with the node at point of crossing place.The mistake of picture recoil or overshoot also must be eliminated.
For the map of scanning, the stain on the figure of seedbed may need to eliminate from the grating generated.Such as, the spot of dirt may connect together the line that two originally should not be connected.
Data manipulation
GIS can perform data reconstruction and data are converted to different forms.
Such as, GIS can by generating line having around all unit of same category, the spatial relationship of determining means simultaneously, as adjacent and comprise, converts satellite image to vector structure.
Collect in a variety of ways due to numerical data and store, two kinds of data sources may be not exclusively compatible.
Therefore GIS is necessary can by geodata from a kind of cooperating measure to another kind of structure.
The novel travel party's real-time management system system based on the Big Dipper technology and GIS technology of the present invention is changed
Property right map may show data with different engineer's scales from soil strip map.
Map datum in GIS must can be operated to it with the alignment of data obtained from other map or match.
Before numerical data is analyzed, they may be integrated into the process of GIS by them through some other, such as, and projection and coordinate transform.The earth can represent with multiple model, and for the arbitrary set point on earth surface, each model all may provide a set of different coordinate (as latitude, longitude, height above sea level).
The novel travel party's the simplest model of real-time management system based on the Big Dipper technology and GIS technology of the present invention to be the supposition earth be a desirable spheroid.
Along with more measurements of the earth build up, the model of the earth also becomes and becomes increasingly complex, more and more accurately.
In fact, some models applying in the zones of different of the earth to provide higher degree of accuracy (as North America coordinate system, 1983-NAD83-is only suitable for using in the U.S., and inapplicable in Europe).
Projection is the foundation making map, and it is the mathematical method of transitional information from a kind of model of the earth, and the curved surface of three-dimensional is converted to the medium (such as paper or computer screen) of two dimension by it.
Dissimilar map will adopt different optical projection systems, because often kind of optical projection system has the suitable purposes of himself.Such as a kind ofly accurately can reflect that the projection of continent shape can distort the relative size in continent.
Spatial analysis
Spatial analysis capacity is the major function of GIS, is also the principal character that GIS and computerized mapping software distinguish.
Research space things is removed in spatial analysis, and makes quantitative description to space things.
Spatial analysis needs complicated mathematical tool, wherein most importantly space statistics, graph theory, topology, computational geometry etc., and its main task forms space to be described and to analyze, to reach acquisitions, description and Cognitive Spaces data; Understand and explain the context process of geographic map case; The Simulation and Prediction of steric course; The object such as event on regulation and control geographical space.
Spatial Data Analysis and many subjects are related, and the specialisms such as geography, economics, regional science, air, geophysics, the hydrology provide knowledge and mechanism for it.
The novel travel party's real-time management system based on the Big Dipper technology and GIS technology of the present invention, except GIS Software Bundling spatial analysis module, also has the spatial analysis software that some are special, as GISLIB, SIM, PPA, Fragstats etc.
Modeling
Data modeling
The novel travel party's real-time management system based on the Big Dipper technology and GIS technology of the present invention by wetland map from airport, the rainfall amount that records of the different place such as TV station and school associates is very difficult.But GIS can describe the two-dimentional three-dimensional feature of earth's surface, underground and air.
Such as, the rainfall line of reaction rainfall amount can chart rapidly by GIS.
Such figure is called rainfall line chart.Can be estimated the feature on whole earth's surface by the measurement of the point of limited quantity, such method is very ripe.A two-dimentional rainfall line chart can carry out overlay analysis with other layer of same area in GIS.
How long can will the quantity so entering the pollutant of wetland just reach the quantity of welding if all factories near wetland are simultaneously to korneforos discharge chemical substance? GIS can simulate the path of pollutant along the diffusion of Linear Network (river).The numerical value of the such as gradient, velocity constraint, pipe diameter and so on can be included this model in and make to simulate more accurate.Network modelling is generally used for traffic programme, hydrology modeling and underground pipe network modeling.
GIS
The novel travel party's real-time management system geography information based on the Big Dipper technology and GIS technology of the present invention is the record of a pile numeral, needs suitable software and goes it to show; Meanwhile, the foundation of geographic information database, also depends on the help of appropriate software, and geodata is information-based.Current market in business circles generally monopolize by two large geographical information system giant ESRI and Mapinfo, but they also can provide a set of whole full geographic information system, use for client.Government and military entity often use the software made especially, and the GRASS such as increased income or other special systems, to coordinate their special requirement.Although have the instrument of many GIS data of reading freely now, the geography information that general masses can obtain easily, must the system of the Virtual Earth relying on Google Earth or Microsoft and so on.The data that these systems provide more often too region-centric, such as: you can know and find a parking stall being positioned at the remote small town of the U.S., but can not see clearly the street that is positioned at Jiangnan District, Soul.
The Internet links programming interface
In today that Internet service is universal, many geographic information systems all provide programming interface, allow user set up respective geographic information information page by these interfaces and system thereof.These programming interfaces, have and utilize VBA's or JavasScript.Allow user be easy to just can provide the link page of satellite photo or map, even add the information such as traffic route or reason position.
Mobile GIS
By the combination with flow device, geographic information system can provide instant geography information for user.Guider on general automobile is all the compound system combining mobile satellite location equipment (GPS) and geographic information system (GIS); The map king once very popular in Hong Kong is then a set of immediately drawing system that can be arranged on PDA or mobile phone.
The novel travel party's real-time management system based on the Big Dipper technology and GIS technology of the present invention it except the content of general geographic information system, further comprises each driving of bar road and the database of relevant information.The information such as route, direction, section of this data base manipulation vector representation driving, utilizes again the concept of network topology to decide best track route.Geographical data file (GDF) is for navigational system describes the iso standard of map datum.Auto-navigation system is combined with map match, GPS location and calculates the position of vehicle.Map resource database also for trajectory planning, navigation, and may also have the Premium Features such as active safety system, auxiliary driving and position location services (Location Based Services, LBS).The database application of auto-navigation system map resource data base administration.
RTK
Movable positioning system, accurate positioning error centimetre-sized.
Developing instrument
Assembly type instrument
The novel travel party's real-time management system development of component GIS instrument based on the Big Dipper technology and GIS technology of the present invention is the product of technical development of computer, represents the developing direction of GIS exploitation.The development platform that it not only has standard and the standard interface be simple and easy to, can also realize freely, recombinate flexibly.The core technology of development of component GIS instrument is component object [2] model (COM) technology of Microsoft, and mostly development of component GIS instrument of new generation is to adopt ActiveX control technology to realize.
Advantage: with the obvious advantage in Seamless integration-and dirigibility.GIS developer need not grasp special generalized information system development language, as long as be familiar with the general IDE based on windows platform, understand the attribute of control, method and event, just can realize generalized information system and develop.
Claims (9)
- The novel travel party's real-time management system GIS data based on the Big Dipper technology and GIS technology of the present invention has showed real world objective objects (highway, Land_use change, height above sea level) in the form of digital data;Real world objective objects can be divided into two abstract concepts:Discrete objects (as house) and continuous print object domain (as rainfall amount or height above sea level);Two kinds of methods that these two kinds of abstractions store data main in generalized information system are:Grid (grid) and vector;Grid (grid) data are made up of the row and column depositing unique value storage unit;It and grid (grid) image are similar, except using suitable color, the numerical value of unit record also may be a sorted group (such as situation of land use), a continuous print value (such as rainfall amount) or a null value of record when data are not available;The resolution of raster dataset depends on the mesh width of ground unit;Usual storage unit represents the square region on ground, but also can be used for representing other shape.
- Raster data both can be used for representing one piece of region, also can be used for expression material object;Vector data make use of geometric figure such as point, line (series of points coordinate), or face (shape is decided by line) shows objective objects;Such as, in house segmentation, represent produce border with polygon, come Precise Representation position to put;Vector can be used for representing the field with consecutive variations equally;Level line and sealene triangle graticule mesh (TIN) is utilized to represent height above sea level or other continually varying values;The point that the record of TIN connects into an irregular grid be made up of triangle for these is assessed.
- The face at triangle place represents topographical surface;Grid or Vector Data Model is utilized also to have shortcoming to express real existing advantage;Raster data is arranged on points all in face and all records same value, and vector format only stores data in the place needed, and this just makes the space of the storage needed for the former be greater than the latter;The operation covered can be realized easily for raster data, and for much more difficult vector data;Vector data can be revealed as the vector graphics on traditional map, and raster data will be will present fuzzy shape with the border of display object during Image texture;In raster data, cell value can attribute information storage, but can record relevant identifier as to other forms equally;The novel travel party's real-time management system measurement data based on the Big Dipper technology and GIS technology of the present invention can be directly inputted in GIS from the digital data acquisition system measuring apparatus; From GPS (GPS)---the position obtained another kind of survey instrument, also can be directly inputted in GIS;Remotely-sensed data plays an important role equally in Data Collection, and is made up of the multiple sensors be attached on platform.
- Sensor comprises video camera, digital scanner and laser radar, and platform is then usual to be made up of aircraft and satellite;The novel travel party's real-time management system major part numerical data based on the Big Dipper technology and GIS technology of the present invention derives from picture interpretation and aerophoto;Softcopy workstation is used for the feature that digitizing directly obtains from the stereoscopic pair of digital picture;These systems allow data with two dimension or three-dimensional seizure, and their height above sea level directly obtains from the stereoscopic image Alignment measuring of photogrammetry principle;Now, simulation aerophoto is first scanned and then is input to soft copy system, but along with high-quality digital camera more and more cheap, this step also just can be omitted;Satellite remote sensing provides another important sources of spatial data;Here satellite uses different sensor bags to measure the reflection coefficient of the part of electromagnetic spectrum or the radiowave launched as radar from active sensor passively; Remote sensing is collected can process the raster data identifying interested object and class such as land cover pattern further.
- Except collection and input space data, attribute data also will be input in GIS; For vector data, this comprises the additional information about object in systems in which;After in input data to GIS, usually also to edit, carry out eliminating error, or process further;GIS can perform data reconstruction and data are converted to different forms;Such as, GIS can by generating line having around all unit of same category, the spatial relationship of determining means simultaneously, as adjacent and comprise, converts satellite image to vector structure;Collect in a variety of ways due to numerical data and store, two kinds of data sources may be not exclusively compatible;Therefore GIS is necessary can by geodata from a kind of cooperating measure to another kind of structure;The novel travel party's real-time management system system based on the Big Dipper technology and GIS technology of the present invention is changedProperty right map may show data with different engineer's scales from soil strip map;Map datum in GIS must can be operated to it with the alignment of data obtained from other map or match.
- The novel travel party's the simplest model of real-time management system based on the Big Dipper technology and GIS technology of the present invention to be the supposition earth be a desirable spheroid;Projection is the foundation making map, and it is the mathematical method of transitional information from a kind of model of the earth, and the curved surface of three-dimensional is converted to the medium (such as paper or computer screen) of two dimension by it;Spatial analysis capacity is the major function of GIS, is also the principal character that GIS and computerized mapping software distinguish;Research space things is removed in spatial analysis, and makes quantitative description to space things.
- Spatial analysis needs complicated mathematical tool, wherein most importantly space statistics, graph theory, topology, computational geometry etc., and its main task forms space to be described and to analyze, to reach acquisitions, description and Cognitive Spaces data; Understand and explain the context process of geographic map case; The Simulation and Prediction of steric course; The object such as event on regulation and control geographical space;Spatial Data Analysis and many subjects are related, and the specialisms such as geography, economics, regional science, air, geophysics, the hydrology provide knowledge and mechanism for it;The novel travel party's real-time management system based on the Big Dipper technology and GIS technology of the present invention, except GIS Software Bundling spatial analysis module, also has the spatial analysis software that some are special, as GISLIB, SIM, PPA, Fragstats etc.;The novel travel party's real-time management system based on the Big Dipper technology and GIS technology of the present invention by wetland map from airport, the rainfall amount that records of the different place such as TV station and school associates is very difficult; But GIS can describe the two-dimentional three-dimensional feature of earth's surface, underground and air.
- In today that Internet service is universal, many geographic information systems all provide programming interface, allow user set up respective geographic information information page by these interfaces and system thereof; These programming interfaces, have and utilize VBA's or JavasScript; Allow user be easy to just can provide the link page of satellite photo or map, even add the information such as traffic route or reason position;Mobile GISBy the combination with flow device, geographic information system can provide instant geography information for user; Guider on general automobile is all the compound system combining mobile satellite location equipment (GPS) and geographic information system (GIS); The map king once very popular in Hong Kong is then a set of immediately drawing system that can be arranged on PDA or mobile phone;The novel travel party's real-time management system based on the Big Dipper technology and GIS technology of the present invention it except the content of general geographic information system, further comprises each driving of bar road and the database of relevant information; The information such as route, direction, section of this data base manipulation vector representation driving, utilizes again the concept of network topology to decide best track route; Geographical data file (GDF) is for navigational system describes the iso standard of map datum; Auto-navigation system is combined with map match, GPS location and calculates the position of vehicle; Map resource database also for trajectory planning, navigation, and may also have the Premium Features such as active safety system, auxiliary driving and position location services (Location Based Services, LBS); The database application of auto-navigation system map resource data base administration;RTKMovable positioning system, accurate positioning error centimetre-sized.
- Developing instrumentAssembly type instrumentThe novel travel party's real-time management system development of component GIS instrument based on the Big Dipper technology and GIS technology of the present invention is the product of technical development of computer, represents the developing direction of GIS exploitation; The development platform that it not only has standard and the standard interface be simple and easy to, can also realize freely, recombinate flexibly; The core technology of development of component GIS instrument is component object [2] model (COM) technology of Microsoft, and mostly development of component GIS instrument of new generation is to adopt ActiveX control technology to realize;Advantage: with the obvious advantage in Seamless integration-and dirigibility; GIS developer need not grasp special generalized information system development language, as long as be familiar with the general IDE based on windows platform, understand the attribute of control, method and event, just can realize generalized information system and develop.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104850596A (en) * | 2015-04-28 | 2015-08-19 | 国家电网公司 | Distribution network data processing method based on mobile GIS (Geographic Information System) and RTK (Real Time Kinematic) positioning |
| CN106170018A (en) * | 2016-08-16 | 2016-11-30 | 邹霞 | Regional service system based on LBS service |
| CN109284345A (en) * | 2018-09-18 | 2019-01-29 | 成都中星世通电子科技有限公司 | A kind of electromagnetic spectrum methods of exhibiting, storage medium, terminal and system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104850596A (en) * | 2015-04-28 | 2015-08-19 | 国家电网公司 | Distribution network data processing method based on mobile GIS (Geographic Information System) and RTK (Real Time Kinematic) positioning |
| CN104850596B (en) * | 2015-04-28 | 2018-01-02 | 国家电网公司 | A kind of distribution data processing method based on mobile GIS and RTK positioning |
| CN106170018A (en) * | 2016-08-16 | 2016-11-30 | 邹霞 | Regional service system based on LBS service |
| CN109284345A (en) * | 2018-09-18 | 2019-01-29 | 成都中星世通电子科技有限公司 | A kind of electromagnetic spectrum methods of exhibiting, storage medium, terminal and system |
| CN109284345B (en) * | 2018-09-18 | 2021-07-06 | 成都中星世通电子科技有限公司 | Electromagnetic spectrum display method, storage medium, terminal and system |
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