CN101079052A - Basic map information dynamic collection and maintenance method - Google Patents
Basic map information dynamic collection and maintenance method Download PDFInfo
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- CN101079052A CN101079052A CN 200710062256 CN200710062256A CN101079052A CN 101079052 A CN101079052 A CN 101079052A CN 200710062256 CN200710062256 CN 200710062256 CN 200710062256 A CN200710062256 A CN 200710062256A CN 101079052 A CN101079052 A CN 101079052A
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Abstract
The invention relates to a method of collecting and maintaining the basic geography information in the electronic map and geography information system application field, which comprises the following steps: equipping with flush bonding map flat on the palmtop; equipping with host system map flat on the computer; proceeding derived operation before field operation collection; deriving the collecting original map from the data base of the computer to the palmtop; drafting various basic map with the palmtop on the spot when the collection is field operation; determining reference point with flush bonding GPS receiver when pinpoint is needed; collecting map object position information directly and saving the collected position information directly with arrow diagram form in the corresponding diagram layer of the basic map; proceeding leading-in operation and achieving dynamic maintenance and maintenance of the basic map information. The method achieves dynamic administration and immediate updating, which provides the convenience and the probability of collecting high strength and distant data.
Description
Technical field
The invention belongs to electronic chart and (GIS) Geographic Information System application category, relate to the method for a kind of basic geographical information collection and maintenance.
Background technology
Electronic chart is exactly to utilize ripe network technology, the communication technology, GIS (Geographic Information System) technology, realizes a kind of new Map Services mode.Electronic chart has not had the texture of paper, has but annotated the notion of map in the people mind again.
Compare with paper map, CD map, online electronic chart has the advantages that information is unlimited, can arbitrarily add.It is not subjected to the restriction of engineer's scale, graphic style, and abstract is lower, and objectification is better, can be according to the information of your needs of the intelligentized demonstration of your intention.
Owing to have the special messenger to be responsible for collecting various data, thereby online electronic chart can upgrade at any time: the sub-district in the road of newly opening, the planning, the highway section of temporary transient jogging in time obtain reaction on the net in the map.
Along with the maturation of GPS, WAP technology, Geographic Information System (GIS) can show the information relevant with the position to provide the important assurance of GPS application service as an important ingredient intuitively, in real time.
The electronic chart service system is fully used GIS technology and network technology, handling beauteously of spatial information and attribute information can be combined, the position and the state that show all moving targets, fixed target in mode intuitively, and directly on map, controlled object is managed, system possess friendly interface, simple operation, real-time, contain much information, reliable and stable characteristics.Vehicular intelligent navigational system, GPS positioning service system and GPS type portable data assistance product have been widely used at present abroad.
Along with the formulation and the enforcement of wireless interconnected agreement, WAP has become the focus in market.Mobile fusion with the internet will bring the unlimited market outlook of potentiality, mobile phone, pager, palm PC ... various hand-held terminal devices can both carry the INTERNET map.For example can provide the design of " optimal path " for you and be presented on the map, inquire restaurant, theater that you are just seeking, guide you to pass through the viaduct of the place ahead complexity, tell refuelling station, the auto repair point of you " nearest ", help you to measure distance between the two places from you ...
Now, along with computing machine and rapid development of network technique and universal, electronic chart can become a high-tech assistant in relevant industries field gradually by people's cognition.
Yet, a maintenance issues that problem is exactly a basic map of the maximum that Geographic Information System faces in enforcement and application process.Electronic map updating, maintenance be specialty too, and operation is too complicated, causes the user of basic unit not have the several making that can grasp electronic chart.Because rapid development of economy, urban construction is maked rapid progress, and electronic chart upgrades and do not catch up with city economic development variation far away, and the information that marks on the map is all changing every day, how in time to gather the geography information that often changes, be the key issue that the Geographic Information System application need solves.
Summary of the invention
The purpose of this invention is to provide a kind of method that can gather fast and upgrade basic map information at any time.
For this reason, the present invention adopts following technical scheme: a kind of basic map information dynamic collection and maintaining method, at palm PC embedded map platform is installed, main system map platform is installed on computers, the Embedded GPS receiver is installed on palm PC, in computing machine, is provided with the database of storage basic map spatial information and attribute information; Implement before the field data acquisition, carry out earlier and derive operation, the mode that the original map that will gather derives with framing exports on the palm PC from the database of computing machine; When implementing field data acquisition, hand-held palm PC is drawn all kinds of basic maps at the scene, when needing accurately to locate, utilize the Embedded GPS receiver to determine reference point, directly gather the positional information of map object, and the positional information that collects is directly deposited in the corresponding figure layer of basic map with the form of map vector; After field data acquisition finishes, carry out import operation, the basic map that collects is imported in the database, realize the Dynamic Maintenance and the maintenance of basic map information.
Above-mentioned computing machine can be to be made of server and the client computer more than two or two, supports many client computer simultaneously the database that is stored in the server to be safeguarded.
The palm PC that is used for field data acquisition can be two or more, the form organizing map data that described main system map platform is preferably deposited with framing, and the derivation operation that each palm PC is carried out is preferably framing derivation mode.
When needs high strength or remote collection, preferably adopt following method: adopt mode that framing derives that the original map that will the gather database from computing machine is exported on the notebook computer, with the form of framing derivation the original map that will gather is exported to each palm PC from notebook computer again; The basic map that collects by each palm PC at first imports notebook computer, utilizes notebook computer that the basic map that each palm PC collects is carried out overall treatment, after disposing, basic map is imported to the computing machine from notebook computer again.
Basic map information collection and maintaining method that the present invention proposes, owing to adopted based on embedded OS and map platform, Using geographic information system technology on PDA, can realize that field operation gathers the basic map of vector quantization real-time dynamicly, thereby realize the dynamic management of basic map information and upgrade in time.Collection of the present invention and maintaining method, also allow a plurality of PDA to carry out data acquisition simultaneously, also allow to support many client computer simultaneously the geographic information database that is stored in the server to be safeguarded, when many people assault a certain particular locality of collection, also can arrange many PDA to gather separately simultaneously in a certain zone, select notebook computer to carry out professional utility appliance, for high strength, remote data acquisition are provided convenience and possibility.Method of the present invention, map are that framing is deposited in main system, and data derive the principle that also adopts framing to derive, and have avoided system's operation slow like this, make derivation and import operation be able to quick execution.
Description of drawings
Fig. 1 action distribution plan;
Fig. 2 system works flow process figure;
Fig. 3 PDA gathers the workflow diagram of map in conjunction with GPS;
Fig. 4 data importing process flow diagram.
Embodiment
The present invention proposes a kind of basic map information dynamic collection and maintaining method, and utilize existing hardware device and software, developed a cover basic map information dynamic management system, before embodiments of the invention are described in detail, at first introduce main hardware and software equipment that method of the present invention adopts: palm PC, GPS receiver, embedded map platform software and main system map platform software etc.
(1) PDA equipment
PDA, English full name Personal Digital Assistant is translated into personal digital assistant.Have operating system, the PDA of application development ability is provided, can be referred to as palm PC.The outstanding feature of palm PC is: it had both had the intelligence of computing machine, possessed the locomotivity that computing machine does not possess simultaneously.Its main armrest is write and other pointing devices, and touch screen technology input places one's entire reliance upon.Be particularly suitable for those and forbid the place and the outdoor application of electricity consumption.As: the factory building articles from the storeroom is checked, field information acquisition etc.
The basic map information dynamic management system of embodiment of the invention exploitation, the PDA operating system of selecting for use is supported the embedded geographical information systems platform of main flow, can with the seamless link of Windows operating system, the Office format file can be supported very easily, and AVI, RM, the multimedia software such as MPG, WMV of PC form can be directly supported.
The key technical indexes: adopt the above processor of 400MHz Intel PXA255,32MB Flash ROM/64 MB sdram memory, have CompactFlash memory card slot, infrared interface, configuration multimedia earphone and charger.Screen resolution reaches 240*320,65536 looks.
(2) GPS receiver
GPS, English full name Global Positioning System is translated into GPS.Being the U.S. the earliest developed since 1970's, last 20 years, expensive 20,000,000,000 dollars, built up in 1994 comprehensively, use the satellite of 24 highly about 2.02 ten thousand kms to form satellite constellation, have the new generation satellite navigation and the positioning system of carrying out comprehensive real-time three-dimensional navigation and station-keeping ability in sea, land and sky.The follow-up gps system of also having released oneself in Europe.
To be objective, the precision of GPS receiver mainly depends on the quantity of day aerial visible satellite, and the local precision that therefore housing-group is intensive in the city is very low, is what can't gather such as the concrete shape of buildings.But can be used for determining the reference position, and be highly suitable for field acquisition.
■ assists PDA, enriches the map acquisition means
■ is adapted at gathering outside the local network urban district information such as highway, rural area
■ carries out the benchmark location in the urban district, gather road information
(3) the GPS receiver is embedded PDA
Independent PDA can't provide longitude and latitude to gather positioning function, and independent GPS can't be used in combination with application program.If it is can the two is integrated, even more ideal certainly.Fortunately, industry provides ripe Related product and solution: use Embedded GPS equipment (also claiming jacket formula GPS) to embed PDA.In this state, the latitude and longitude information that collects is stored in the simulation com port of PDA,, finishes data acquisition and typing by the software program reading of data on the PDA by GPS.The embodiment of the invention adopts GM-270U type Embedded GPS receiver.
(4) embedded map platform
It is a focus of current geographical information technology development that embedded geographical information is used, can be widely used in fields such as military affairs, mapping, medical treatment, auto navigation, the appearance of personal automobile navigation and PDA (or mobile phone) positioning service (LBS) is closely connected embedded geographical information technology and daily life especially with development.At present, all comprise " embedded map platform " this matured product in the product line of each big map platform provider.As: the MapX Mobile of MapInfo, the eSuperMap of SuperMap etc.The embodiment of the invention adopts the MapX Mobile of MapInfo company.This software belongs to the MapInfo product line together, comprehensive compatible MapX, and also cost performance is higher, is the first-selection of this programme.
(5) notebook computer
Field operation is used, and is not necessaries, in particular cases adopts at some.The notebook computer of brand all can, resemble IBM, TOSHIBA, and domestic association, Tsing Hua Tong Fang etc.
(6) main system map platform
Main system map platform, be called for short main system, refer to the application program that links to each other with geographic information database, be installed on the PC in the machine room or on the server, this program except can safeguard whole basic maps of system, operation such as inquiry, be responsible for also guaranteeing that the validity of data also provides distributed map distribution function.Its major function is as follows:
A. map is manual safeguards
◆ the content of maintenance
The content of safeguarding can be whole basic map kinds.As buildings, street, greenery patches, water system etc.
◆ maintenance service
The means of safeguarding are abundant, comprising: newly-built, revise (contain and revise attribute and revise figure), deletion, translation.The copy of support target, stickup.Allow to delete simultaneously a plurality of objects.
◆ the tissue of figure layer
For figure layers such as buildingss, its data volume is very huge, does not adopt under the situation of spatial database at present, if deposit into single file, its performance is low excessively, will have a strong impact on the use of system.The map organizational form of this class figure layer is that its framing is deposited, and is about to view picture figure and cuts into some less map files according to the geographic position, and the performance of system has just risen.
But what the organizational form of this sheet line system was brought is programme controlled complicated.For example: search for a buildings, program need all travel through in the map sheet.System is the current map sheet of search automatically, finishes relevant maintenance and inquiry.
◆ concurrency
Main system has taken into full account the needs that many people safeguard simultaneously in design, and all maintenance work all is associated with background data base, has both deposited whole maintenance contents in database.At map segment, adopt the maintenance request of each maintenance terminal of middle layer programmed control, guarantee the integrality and the consistance of data.For avoiding the terminal more than two to safeguard a map object simultaneously, the spy increases lock function.When a user carries out attended operation to certain map object, other users can not safeguard, but can inquire about.
◆ distribution
In other words, system is up-to-date map the server end reservation, and client " synchronously " as required at any time arrives up-to-date map." synchronously " is different from document copying, because the network traffics of document copying are too big, and " synchronously " only that client is different partial update.
B. the map comprehensive inquiry is added up
Basic map comprehensive inquiry statistics provides following correlation function:
◆ system's support is pressed the coded query location to the data of each figure layer.Support fuzzy matching, qualified a plurality of list objects can be shown, navigate to screen center and highlighted flicker.
◆ system's support is to the detailed attributes information inquiry of each figure layer object.Double-click modes such as map object by mouse, easily the details of displayed map object.
◆ the simple statistical function that system provides data-oriented to safeguard.Can classify, quantity of subregion statistical basis data, change conditions etc.
The basic map information dynamic management system of the embodiment of the invention is the information management system that a cover carries out Dynamic Maintenance and upgrades in time basic map.This system is based on embedded OS and map platform, and Using geographic information system technology on PDA realizes that the field operation Real-time and Dynamic gathers the basic map of vector quantization.System utilizes Embedded GPS to gather the latitude and longitude coordinates of map object, and the positional information that collects directly is saved as the basic map of vector quantization.System imports to the map vector that collects in the geographic information database in batches, realizes the dynamic management of basic map information and upgrades in time.Total system by the field data acquisition system, import and export system, main system map platform, PDA terminal, Embedded GPS, embedded map platform and form.
According to the main functional modules of the embodiment of the invention basic map information dynamic collection of the present invention and maintaining method are done below and be described in further detail.
The basic map information dynamic management system is by relatively independent, and numerous module combinations of close fit form, and can concentrate to be divided into field data collection and indoor data management two large divisions.For more clearly explaining various means and use-pattern thereof, provide the location map of each related work module, i.e. Fig. 1.Fig. 2 explains top action with the angle of workflow diagram.The main system map platform of total system comprises that mainly basic map safeguards that master routine, basic map Dynamic Maintenance import and export program, resource management system platform.
In conjunction with collection of the present invention and maintaining method each functional module is described down.
1, basic map data field data acquisition
This module operates on the PDA.After on the PDA embedded map platform being installed, all kinds of basic maps of the on-the-spot drafting of hand-held PDA; When needs are accurately located, install and the unlatching Embedded GPS, can determine reference point and directly gather all kinds of basic maps.The information that collects directly deposits corresponding figure layer in the form of map vector.The TAB format map of the compatible MapInfo of map datum.
For the collecting work of data, mainly contain following two kinds of means: 1) use PDA, in conjunction with the manual vector data of gathering of application program; 2) manual or gather vector data automatically in conjunction with Embedded GPS, be fit to use the data of PDA+ Embedded GPS equipment collection to comprise: the buildings in urban district, street, greenery patches, water system, enclosure wall, railway, mark etc.Mark refers to the main place in urban district.
Or the software flow of automatically gathering vector data manual in conjunction with Embedded GPS as shown in Figure 3.
The embodiment of the invention powerful maintenance function of providing convenience: the batch deletion of the copy of newly-built map object, modification map object attribute and figure, map object and stickup, map object template, map object.The function that software provides is as follows:
Base map operation: vector amplifies, vector dwindles, screen roam, last view, a figure layer control, span instrument etc.
Maintenance mode: maintenance point, line, zone provide newly-built, revise functions such as (contain and revise attribute and revise figure), deletion, translation.
Inquiry mode: provide by coding fuzzy query positioning function.Provide behind the location and click inquiry detailed attributes informational function.
Mesh tool: the grid background is provided, makes things convenient for the user to determine benchmark, measuring and calculating length is the featured function of this software.
2, the basic map data importing is derived
This module operates on PC or the notebook computer.Before field data acquisition, the original map that the export function of executive system will be gathered in machine room earlier exports on PDA or the notebook computer from PC.After field data acquisition is finished, the map that collects among the PDA by importing PC behind the data check or import notebook computer, or is imported main system with the map in the notebook computer after by data check.
The software flow pattern of the importing module of PC as shown in Figure 4.Importing work is in batches, in importing process, can set importing filtercondition (comprise whole importings, increment import promptly handle newly-built, revise and map object, the self-defined importing of deletion), the map file of compatible format is imported in the main system, and the data that import can be carried out work for inspection overlapping, that bear the same name, reach type (point, line, zone) with the data before importing.The support of this software flow is manual to be revised.
Because basic map data volume very big (tens even up to a hundred million), so the map in the PC is that framing is deposited, otherwise will cause system response blunt.In this case, data derive the principle that also adopts framing to derive, and can only derive several width of cloth (be subjected to the PDA memory limitations herein, be not more than 30,000,000) to PDA at every turn, several can be exported to notebook computer, export to PDA outdoor from notebook computer.
Derive module and before derivation, do the data contrast at PC and PDA two ends, judge whether to have the condition of derivation, contrast by after the PC end data is exported on the PDA; Import module and before importing, do the contrast at two ends, judge whether to have the condition of importing, can be after contrast is passed through with selected data importing to local, and can carry out the work for inspection of overlapping, duplication of name and type.
3, the overall treatment of map object
This module operates on the PC.Basic map data with importing are maintained in the geographic information database server effectively; And, realize the renewal of basic map with object deletion discarded in the geographic information database server.
System stores the spatial information of basic map in the large-scale relevant database into by specific format, supports many machines to safeguard map simultaneously.The host computer equipment of this moment is the server-client pattern, store large-scale relevant database in the memory device of server, server reads these formative data and reverts to client computer, can realize the distribution of map easily, guarantee any client computer of geographic information database, can easily the up-to-date map on the server be updated to this locality synchronously.
In addition, native system also provides the manual function of safeguarding map, and the data maintenance personnel can contrast that data such as drawing is manual carries out the maintenance of basic map data.And it is compatible that manual maintenance and batch import.
System keeps the map before the backup updating, can inquire about backup map.
4, rights management
This module operates on the PC.System has the licensing scheme to the management of basic map hierarchical classification.Classification is mainly: three grades of power user, keeper, operator, higher level have the right assignment power of subordinate; The map layer that layering is mainly deposited for buildings and this two classes framing of enclosure wall can specifically be assigned to the authority of safeguarding of a certain width of cloth map on authority.Whether other figure layer (comprising railway, water system, greenery patches, street, device flag, mark and grid) then may command allows to safeguard.
5, log management
This module operates on the PC.Safeguard and the batch import operation for manual, in operating process, write down maintenance log.Daily record can be inquired about easily.
6, data query
This module all is suitable on PDA and PC.Provide the function of each figure layer object by the coded query location.Function to the detailed attributes information inquiry of each figure layer object is provided.
7, field data site disposal
This module only has effect under specific situation.Consider that many people assault the situation of gathering a certain particular locality (as certain newly-built sub-district).At this moment, can arrange many PDA to gather separately simultaneously, select notebook computer to carry out professional utility appliance in a certain zone.At machine room some width of cloth maps are exported to notebook computer (single PDA possible capacity deficiency), export to each PDA from notebook computer again.In field operation, utilize notebook computer the map datum that each PDA gathers can be carried out overall treatment.After all finishing, get back to machine room, map is imported to the system from notebook computer.This mode is a high strength, remote data acquisition is provided convenience and possibility.
Claims (4)
1. basic map information dynamic collection and maintaining method, it is characterized in that, at palm PC embedded map platform is installed, main system map platform is installed on computers, the Embedded GPS receiver is installed on palm PC, in computing machine, is provided with the database of storage basic map spatial information and attribute information; Implement before the field data acquisition, carry out earlier and derive operation, the mode that the original map that will gather derives with framing exports on the palm PC from the database of computing machine; When implementing field data acquisition, hand-held palm PC is drawn all kinds of basic maps at the scene, when needing accurately to locate, utilize the Embedded GPS receiver to determine reference point, directly gather the positional information of map object, and the positional information that collects is directly deposited in the corresponding figure layer of basic map with the form of map vector; After field data acquisition finishes, carry out import operation, the basic map that collects is imported in the database, realize the Dynamic Maintenance and the maintenance of basic map information.
2. basic map information dynamic collection according to claim 1 and maintaining method, it is characterized in that, described computing machine is made of server and the client computer more than two or two, supports many client computer simultaneously the database that is stored in the server to be safeguarded.
3. basic map information dynamic collection according to claim 1 and maintaining method, it is characterized in that, the palm PC that is used for field data acquisition is two or more, the form organizing map data that described main system map platform is deposited with framing, the derivation that each palm PC is carried out is operating as framing derivation mode.
4. basic map information dynamic collection according to claim 3 and maintaining method, it is characterized in that, adopt mode that framing derives that the original map that will the gather database from computing machine is exported on the notebook computer, with the form of framing derivation the original map that will gather is exported to each palm PC from notebook computer again; The basic map that collects by each palm PC at first imports notebook computer, utilizes notebook computer that the basic map that each palm PC collects is carried out overall treatment, after disposing, basic map is imported to the computing machine from notebook computer again.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101509783B (en) * | 2009-03-24 | 2011-10-26 | 北京四维图新科技股份有限公司 | Data checking method and device applying to navigation electronic map production |
| CN102446177A (en) * | 2010-10-11 | 2012-05-09 | 高德软件有限公司 | Data acquisition method and equipment, data processing method and system, and base map processing method |
| CN102663558A (en) * | 2012-04-17 | 2012-09-12 | 民政部国家减灾中心 | Field multivariate data integrated acquisition method facing multi-type tasks |
| CN104143288A (en) * | 2013-05-06 | 2014-11-12 | 北京四维图新科技股份有限公司 | Method and device for marking electronic map road display text |
| CN104236547A (en) * | 2014-10-07 | 2014-12-24 | 谭希妤 | Inertial navigation system based internal building electronic map method and system |
| CN104679822A (en) * | 2014-12-30 | 2015-06-03 | 北京市测绘设计研究院 | Geographic national condition field investigation and plotting method |
| CN104851042A (en) * | 2015-05-13 | 2015-08-19 | 中国科学院地理科学与资源研究所 | Collection and check system for land use tax information |
| CN105912542A (en) * | 2015-12-11 | 2016-08-31 | 中国烟草总公司广东省公司 | Tobacco leaf planting field geographic information data fusion system |
| CN105928522A (en) * | 2016-04-25 | 2016-09-07 | 上海聚美物联网科技有限公司 | Rapid acquisition system and method for indoor positioning |
| CN106373191A (en) * | 2016-08-31 | 2017-02-01 | 铁道第三勘察设计院集团有限公司 | Railway field investigation system based on 3DGIS and investigation method |
| CN108282739A (en) * | 2017-01-06 | 2018-07-13 | 北京四维图新科技股份有限公司 | Geographic information data acquisition method, apparatus and system |
| CN108416070A (en) * | 2018-05-10 | 2018-08-17 | 四川省冶地工程勘察设计有限公司 | A kind of method that geography information quickly introduces GIS-Geographic Information System |
| CN109325082A (en) * | 2018-08-02 | 2019-02-12 | 武汉中海庭数据技术有限公司 | Method based on the interception of Multiple Source Sensor log file |
| CN110866080A (en) * | 2019-11-13 | 2020-03-06 | 江苏纬信工程咨询有限公司 | Rural highway basic information acquisition system and method |
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| CN101509783B (en) * | 2009-03-24 | 2011-10-26 | 北京四维图新科技股份有限公司 | Data checking method and device applying to navigation electronic map production |
| CN102446177B (en) * | 2010-10-11 | 2015-12-16 | 高德软件有限公司 | Collecting method, equipment, disposal route, system and base map processing method |
| CN102446177A (en) * | 2010-10-11 | 2012-05-09 | 高德软件有限公司 | Data acquisition method and equipment, data processing method and system, and base map processing method |
| CN102663558A (en) * | 2012-04-17 | 2012-09-12 | 民政部国家减灾中心 | Field multivariate data integrated acquisition method facing multi-type tasks |
| CN104143288A (en) * | 2013-05-06 | 2014-11-12 | 北京四维图新科技股份有限公司 | Method and device for marking electronic map road display text |
| CN104143288B (en) * | 2013-05-06 | 2016-08-17 | 北京四维图新科技股份有限公司 | The method and device that electronic map road display word is labeled |
| CN104236547A (en) * | 2014-10-07 | 2014-12-24 | 谭希妤 | Inertial navigation system based internal building electronic map method and system |
| CN104679822A (en) * | 2014-12-30 | 2015-06-03 | 北京市测绘设计研究院 | Geographic national condition field investigation and plotting method |
| CN104679822B (en) * | 2014-12-30 | 2018-03-27 | 北京市测绘设计研究院 | A kind of geographical national conditions fieldwork measurement method |
| CN104851042A (en) * | 2015-05-13 | 2015-08-19 | 中国科学院地理科学与资源研究所 | Collection and check system for land use tax information |
| CN105912542A (en) * | 2015-12-11 | 2016-08-31 | 中国烟草总公司广东省公司 | Tobacco leaf planting field geographic information data fusion system |
| CN105928522A (en) * | 2016-04-25 | 2016-09-07 | 上海聚美物联网科技有限公司 | Rapid acquisition system and method for indoor positioning |
| CN106373191A (en) * | 2016-08-31 | 2017-02-01 | 铁道第三勘察设计院集团有限公司 | Railway field investigation system based on 3DGIS and investigation method |
| CN108282739A (en) * | 2017-01-06 | 2018-07-13 | 北京四维图新科技股份有限公司 | Geographic information data acquisition method, apparatus and system |
| CN108416070A (en) * | 2018-05-10 | 2018-08-17 | 四川省冶地工程勘察设计有限公司 | A kind of method that geography information quickly introduces GIS-Geographic Information System |
| CN109325082A (en) * | 2018-08-02 | 2019-02-12 | 武汉中海庭数据技术有限公司 | Method based on the interception of Multiple Source Sensor log file |
| CN109325082B (en) * | 2018-08-02 | 2021-04-09 | 武汉中海庭数据技术有限公司 | Log file intercepting method based on multi-source sensor |
| CN110866080A (en) * | 2019-11-13 | 2020-03-06 | 江苏纬信工程咨询有限公司 | Rural highway basic information acquisition system and method |
| CN110866080B (en) * | 2019-11-13 | 2022-08-23 | 江苏纬信工程咨询有限公司 | Rural highway basic information acquisition system and method |
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