CN102546816A - Campus positioning method based on LBS platform and realization system thereof - Google Patents
Campus positioning method based on LBS platform and realization system thereof Download PDFInfo
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- CN102546816A CN102546816A CN2012100215589A CN201210021558A CN102546816A CN 102546816 A CN102546816 A CN 102546816A CN 2012100215589 A CN2012100215589 A CN 2012100215589A CN 201210021558 A CN201210021558 A CN 201210021558A CN 102546816 A CN102546816 A CN 102546816A
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Abstract
The invention discloses a campus positioning system based on an LBS (Local Based Service) platform, which integrates Wi-Fi (Wireless Fidelity), GPRS (General Packet Radio Service) technology and Internet, mobile communication, a GIS (Geographic Information System) and other networks, and achieves the functions of terminal positioning, map inquiry, navigation, tracking management, short-message notification and the like by utilizing a GPS (Global Positioning System) chip cell phone or a PDA (Personal Digital Assistant) client side. The system provides various information services related to the positions of schools for students, teachers and visitors, realizes personnel and building position management, achieves yellow-page inquiry management that flexible and various bidirectional spatial inquiry of both graphical information and attribute information in the Web GIS system can be carried out, realizes group management that actions of a user within an effective period of time are record to form space and time combined data to design a user and group essential information database for data storage, and provides normative expansion interfaces to achieve efficient communication and cooperation among interiors of teaching and research sections, all the departments and all the personnel. The system has the advantages of high cost and precision, strong cooperative handling capability and the like.
Description
Technical field
The present invention relates to a kind of perception and calculate integrated system; Relate in particular to a kind of campus LBS (Location Based Service) platform, can be teachers and students and visitor all kinds of location dependent information service method and realization systems thereof such as guide, navigation are provided based on the location, indoor and outdoor.
Background technology
Along with the development that campus informatization is built, the also corresponding appearance of the notion of " Digital Campus ", so-called " Digital Campus " is meant digitized, virtual campus, is that " the microcosmic form of expression of digital earth is at the imbody of campus area." Digital Campus " has the characteristics and the function of " digital city "; Through launching the various spaces and the attribute key element in figure, image digitization Information Level performance campus; For the user provides inquiry, retrieval and necessary spatial analysis, the statistical operation of various campuses information and exports corresponding thematic key element by the different user requirement, for development prediction, programmed decision-making and the scientific management in campus provides reliable basis.Institution of higher learning are necessary doing further exploitation and research aspect " Digital Campus " construction as the concentrated area of new and high technology, for urban digital is done some basic and experimental work.
" Digital Campus " has been widely applied to school; But the integrated terminal of the functions such as real-time demonstration of the locating information in campus, traffic information and electronic chart but lacks very much; This software is the positioning navigation terminal system of a cover about the campus; Make it be applied to the campus, have very much realistic meaning and use value.
In campus LBS (Campus-LBS) service, positional information is crucial, and the location is one of key technology.In open outdoor environment, global position system GPS provides point-device locating information.Simultaneously, the demand of indoor positioning information is also grown with each passing day, indoor positioning information accurately all need be used in museum, large-scale stadium, airport, exhibition room, office building, warehouse, underground parking etc.This software is research object with the zone of this special function of campus, builds campus LBS (the Location Based Service) platform based on the indoor and outdoor location, can be teachers and students the relevant information services in all kinds of positions such as guide, navigation are provided with the visitor.
The LBS location technology of current application mainly is divided into GPS location, based on mobile network's location and mixed positioning three major types type, the GPS locating accuracy is the highest, but to environmental requirement than higher, the open visual field and visibility must be arranged.When existing building to stop or when indoor, positioning accuracy and availability reduce greatly, the locating terminal power consumption is bigger, and is high to power reguirements.Though it is comparatively extensive that mobile network's location technology is used at present; The problem that but has the positioning accuracy difference; Wherein utilize the GSM communication network to be used to realize communicating by letter of portable terminal and information service center; Information service center is the core of positioning service system, is responsible for and the information interaction of portable terminal and the network interconnection of each branch center, and classification, record and forwarding and the business information between each branch center of accomplishing various information flow; And whole network monitored, can not satisfy the application demand of some hi-Fixs.The at present main representative technology of hybrid location determination technology is that satellite provides GPS the location; Its basic thought is to utilize with reference to the satellite-signal that receives on the GPS receiver; Issue mobile phone through wireless communication networks; The mobile phone of being furnished with the GPS computing chip calculates mobile phone location according to the satellite data that transmits, and this method combines GPS with wireless communication networks, realizes the assistant GPS location that a kind of precision is high, the location is fast.
Summary of the invention
For further accelerating the exploitation and the research of " Digital Campus " construction aspect; The object of the invention is intended to propose a kind of campus localization method and realization system thereof based on the LBS platform, with the integrated terminal of the functions such as real-time demonstration of locating information, traffic information and the electronic chart of realizing the campus.
Above-mentioned first purpose of the object of the invention; Campus localization method based on the LBS platform; It realizes that characteristic may further comprise the steps: S1: with the portable terminal access server side or with the Browser/Server structure individual PC termination is gone into server end with the Client/Server structure based on wireless communication technology; In the management of server end butt joint access customer, the management of sight package, sight setting and issue, navigation Service and GIS management, said server end is the core component of campus LBS platform; S2: under outdoor open environment, the location is realized in the position of mobile phone users in the campus, present map visually through global position system GPS; S3: under indoor environment; Mobile phone users is connected and interactive information through the mobile gateway access Internet network of WLAN and GIS network and with server end; Individual PC end subscriber is connected with server end and interactive information through WLAN, ICP/IP protocol; Be implemented in the location of campus indoor location, present map visually.
Further, also comprise among the step S1: S11, Admin Administration's flow process, the manager provides user profile data maintenance, Yellow Page data maintenance, spatial geography data to safeguard and the system message Push Service based on WEB interface setting navigation system; S12, positioning flow; Server end is based on sight setting and issue, navigation Service; Reception comes from the geographical relevant information in place of each portable terminal or the individual PC end of Internet network, and these information are presented to mobile phone users or individual PC end subscriber with visual map; S13, database support process; In server end access, modification, deletion user profile data, Yellow Page data, spatial geography data or system message, and utilize aggregation of data, simulation, analysis and the evaluating ability of server end to realize simulation and the prediction that the geographical space process develops.
Further, server end described in the step S13 provides geodata service, directory service, collaboration services and subscriber information management service.
Further, under indoor environment, mobile phone users inserts the used wireless local net mode of Internet network and comprises among the step S3: Wi-Fi transmission, GPRS transmission or based on the radio frequency line ripple transmission of arrowband wireless router.
Further, the method for sight package management is among the step S1: the process according to customer requirements demonstration campus scenario factors figure layer is divided into seven layers with the campus scenario factors; Be respectively building, comprise the classroom of reading room, laboratory and office, school's road; Retail shop, dining room, square and waters; Said requirement shows that the process of campus scenario factors figure layer depends on the user to presenting the multistage scaling of map, and only current scaling more than or equal to the corresponding level convergent-divergent interval following in limited time, play up this grade campus scenario factors.
Above-mentioned second purpose of the object of the invention located the realization system based on the campus of LBS platform and comprised following three aspect parts.
Campus LBS platform: with the portable terminal access server side or with the Browser/Server structure individual PC termination is gone into server end with the Client/Server structure based on wireless communication technology; In the management of server end butt joint access customer, the management of sight package, sight setting and issue, navigation Service and GIS management, said server end is the core component of campus LBS platform.
Portable terminal under outdoor open environment is realized the location through global position system GPS to the position of mobile phone users in the campus, presents map visually.
Portable terminal under indoor environment or individual PC end; Mobile phone users is connected and interactive information through the mobile gateway access Internet network of WLAN and GIS network and with server end; Individual PC end subscriber is connected with server end and interactive information through WLAN, ICP/IP protocol; Be implemented in the location of campus indoor location, present map visually.
Said campus LBS platform further comprises three part of module; Be respectively: Admin Administration's module, the manager provides user profile data maintenance, Yellow Page data maintenance, spatial geography data to safeguard and the system message Push Service based on WEB interface setting navigation system; The locator program module; Server end is based on sight setting and issue, navigation Service; Reception comes from the geographical relevant information in place of each portable terminal or the individual PC end of Internet network, and these information are presented to mobile phone users or individual PC end subscriber with visual map; The database supporting module; In server end access, modification, deletion user profile data, Yellow Page data, spatial geography data or system message, and utilize aggregation of data, simulation, analysis and the evaluating ability of server end to realize simulation and the prediction that the geographical space process develops.
Further, comprise geographical data bank, directory database, collaboration data storehouse and subscriber information management database in the said database supporting module.
Further, the mobile phone users under indoor environment inserts the used WLAN of Internet network and comprises: Wi-Fi, GPRS or based on the radio frequency line ripple of arrowband wireless router.
Further, campus LBS platform includes a sight package administration module: the process according to customer requirements demonstration campus scenario factors figure layer is divided into building with the campus scenario factors; The classroom that comprises reading room, laboratory and office, school's road, retail shop; The dining room, seven layers in square and waters; Said requirement shows that the process of campus scenario factors figure layer depends on the user to presenting the multistage scaling of map, and only current scaling more than or equal to the corresponding level convergent-divergent interval following in limited time, play up this grade campus scenario factors.
After the present invention is based on the campus localization method of LBS platform and realizing that system applies is implemented; Its outstanding effect is presented as: merge Wi-Fi, GPRS etc. with the wireless LAN communication standard agreement; Realize that data are in bumpless transfer and short-distance transmission processing; Also merge WLAN and GPS access, thereby realized campus network LBS navigation system real-time, reliability and low energy consumption.Meanwhile, this programme also to the figure of map datum appear, aspects such as the geocoding of key element, problem feedback and background database manager have all proposed improvement project, for " Digital Campus " set up and further research and development created possibility flexibly.
Description of drawings
Fig. 1 is the system architecture diagram of location, campus of the present invention.
Fig. 2 is that the functional module of wherein campus LBS platform is formed structural representation.
Embodiment
Following constipation closes the embodiment accompanying drawing, and specific embodiments of the invention is done further to detail, so that technical scheme of the present invention is easier to understand, grasp.
For further accelerating the exploitation and the research of " Digital Campus " construction aspect, the integrated terminal of the functions such as real-time demonstration of locating information, traffic information and the electronic chart in realization campus.The present invention proposes a kind of campus localization method and realization system thereof based on the LBS platform.
Should not be meant a kind of The Application of Technology based on the campus navigation system of LBS, it is that integrated system is calculated in a perception.Location, campus based on LBS is made up of client (portable terminal or individual PC end) and service centre's (server end) two parts.Simply as shown in Figure 1; Pass through cordless communication network and Internet connection between them; In open outdoor environment, global position system GPS provides point-device locating information, and the indoor Wi-Fi that utilizes portable terminals such as mobile phone, GPRS etc. obtain the location through wireless communication technology; Combine with mobile GIS then, to reach the purpose of location navigation.In order to remedy the shortcoming of GPS in indoor no signal; For some basic shirtsleeve operation and request; Portable terminal can not asked service centre and independent the completion, then need submit to server for the irrealizable function of the portable terminal of those more complicated and accomplish.
In conjunction with the concrete the present invention program of accompanying drawing; At first should comprise the performing step of three aspects based on LBS campus localization method: one go into server end with the portable terminal access server side or with the Browser/Server structure with individual PC termination with the Client/Server structure based on wireless communication technology; In the management of server end butt joint access customer, the management of sight package, sight setting and issue, navigation Service and GIS management, said server end is the core component of campus LBS platform.
The two realizes the location through global position system GPS to the position of mobile phone users in the campus under outdoor open environment, present map visually.
Moreover under indoor environment; Mobile phone users is connected and interactive information through the mobile gateway access Internet network of WLAN and GIS network and with server end; Individual PC end subscriber is connected with server end and interactive information through WLAN, ICP/IP protocol; Be implemented in the location of campus indoor location, present map visually.
The further refinement of said method scheme: comprise among the step S1: S11, Admin Administration's flow process, the manager provides user profile data maintenance, Yellow Page data maintenance, spatial geography data to safeguard and the system message Push Service based on WEB interface setting navigation system; S12, positioning flow; Server end is based on sight setting and issue, navigation Service; Reception comes from the geographical relevant information in place of each portable terminal or the individual PC end of Internet network, and these information are presented to mobile phone users or individual PC end subscriber with visual map; S13, database support process; In server end access, modification, deletion user profile data, Yellow Page data, spatial geography data or system message, and utilize aggregation of data, simulation, analysis and the evaluating ability of server end to realize simulation and the prediction that the geographical space process develops.Wherein said server end provides geodata service, directory service, collaboration services and subscriber information management service.
In addition; Among the step S3 under indoor environment; Mobile phone users inserts the used wireless local net mode of Internet network and has diversity; Can comprise Wi-Fi transmission, GPRS transmission or based on the radio frequency line ripple transmission of arrowband wireless router, usually preferred more advanced in the world Wi-Fi transmission technology.
The method of sight package management is among the step S1: the process according to customer requirements demonstration campus scenario factors figure layer, the campus scenario factors is divided into seven layers, and be respectively building; The classroom that comprises reading room, laboratory and office, school's road, retail shop; The dining room, square and waters; Said requirement shows that the process of campus scenario factors figure layer depends on the user to presenting the multistage scaling of map, and only current scaling more than or equal to the corresponding level convergent-divergent interval following in limited time, play up this grade campus scenario factors.
This Campus-LBS system supports two kinds of terminal modes, i.e. portable terminal and individual PC end.The main Client/Server structure that adopts between cell phone end and the LBS platform.Portable terminal connects wireless Wi-Fi (GPRS) and GIS network, and the service of Internet network and server end that inserts through mobile gateway is carried out alternately.Portable terminal adopts TCP/IP length to be connected with the Campus-LBS platform basically.Because the complexity of radio communication, both sides keep connecting through sending the mode of heartbeat packet.If the LBS platform can't be received the heartbeat packet that client is sent within a certain period of time, the LBS platform then is regarded as the user automatically and logs off.Simultaneously, the map-based browser of the Campus-LBS that portable terminal also can pass through visit Campus-LBS website, releasing position is shared multi-medium data etc.In addition, adopt the Browser/Server structure between individual PC end and the Campus-LBS platform.The PC end subscriber can land platform with the IE browser to carry out alternately.
Realize that from localization method of the present invention the function master-plan of system also mainly comprises three aspects again; Be respectively: campus LBS platform: with the portable terminal access server side or with the Browser/Server structure individual PC termination is gone into server end with the Client/Server structure based on wireless communication technology; In the management of server end butt joint access customer, the management of sight package, sight setting and issue, navigation Service and GIS management, said server end is the core component of campus LBS platform.
Portable terminal under outdoor open environment is realized the location through global position system GPS to the position of mobile phone users in the campus, presents map visually.
Portable terminal under indoor environment or individual PC end; The sharp mobile gateway through WLAN and GIS network of mobile phone users inserts the Internet network and is connected and interactive information with server end; Individual PC end subscriber is connected with server end and interactive information through WLAN, ICP/IP protocol; Be implemented in the location of campus indoor location, present map visually.
In addition, the mobile phone users under indoor environment inserts the used WLAN of Internet network and comprises: Wi-Fi, GPRS or based on the radio frequency line ripple of arrowband wireless router.
And this campus LBS platform includes a sight package administration module: the process that shows campus scenario factors figure layer according to customer requirements.Map elements is divided into different figure layers according to variety classes; When playing up, show the process of wanting the sketch map layer according to customer requirements; Map elements is divided into seven layers, is respectively: building, classroom (comprising reading room, laboratory and office), school's road, market, dining room, square, waters or other.The map classification display refers to map elements is divided into different stage according to importance, and to the map scaling, the process of sketch map layer demonstration is wanted in decision according to the user.Native system is divided into six grades with map elements by scaling, and wherein base map and fundamental are one-level figure layer, not Be Controlled.0.2～0.3,0.3～0.5,0.5～1, l～2,2～5 all the other 5 convergent-divergent intervals are respectively:.Only prescribe a time limit more than or equal to the following of corresponding level convergent-divergent interval, promptly play up this grade campus scenario factors, otherwise do not played up at current scaling.
Shown in Figure 2, the campus Campus-LBS platform system is divided into three parts, the administrator management subsystem (Administartor? Management? Subsystem, AMS), positioning subsystem (LBS-GIS? Subsystem, LGS), database support subsystem (Database? Support? Subsystem, DSS), the main function to provide users with spatial information query on campus, including the people, the buildings, offices and departments and other location information query.
AMS module wherein; It is to allow the manager set the respective services that navigation system provides user profile data maintenance, Yellow Page data maintenance, spatial geography data maintenance and system message to push based on the WEB interface that function mainly is provided, and provides each item geographical relevant information for navigation system simultaneously.Administrator first anchor point for the campus planning designation that provides location information to set desired that the school building or facility, including attractions coordinate setting contents, scope, such as text and multimedia messages, set upon completion of a map Data packet mode posted on the website, providing users to download to your phone or Pocket? PC?, and then with its positioning subsystem (LGS) to read the data provided by this system for positioning the packet.
The LGS module; The user is a platform with Pocket PC or smart mobile phone, uses jointly with GPS or GPRS location receivers, behind GPS receiver receiving satellite positioning signals; After positioning subsystem is handled, the relevant information of its place geography is presented on user's the Pocket PC or mobile phone; Comprise that the positional information of obtaining is converted into visual map to be shown, the personalized map that mainly is divided into the user shows, the location of individual location and directory service object.
The DSS module; The access of keeper's subsystem, modification, deletion data are provided, store all cartographic informations and for information about; Relevant geographical distribution data are gathered, store, managed and describe; The utilization data in server is comprehensive, digital simulation and data analysis evaluating ability, can obtain the important information that conventional method or general information system are difficult to obtain, and realizes the simulation and the prediction of the evolution of geographical space process.Can be divided into geographical data bank, directory database, collaboration data storehouse and subscriber information management database in this database supporting module synoptically.
Because mobile terminal performance restriction; Most of storage of Campus-LBS whole system and business operation all are to accomplish at server end; The data owner of server end will have living space data, attribute data and SVG map datum; The spatial data content mainly is geo-spatial data (point, line, surface), mainly is and the closely-related spatial data of location-based service.
Below introduced all technical characteristic of the campus localization method that the present invention is based on the LBS platform and the system of realization thereof in detail.Based on this, analysis can get technical scheme of the present invention and have outstanding advantage on the implementation, and is specific as follows.
1, in order to remedy the shortcoming of GPS in indoor no signal; The present invention is merged Wi-Fi, GPRS etc. with the wireless LAN communication standard agreement; Realize that data are in bumpless transfer and short-distance transmission processing; Also merge WLAN and GPS access, thereby realized campus network LBS navigation system real-time, reliability and low energy consumption.
2, realized various graph data layerings and classification display,, just played up, otherwise do not played up for this grade figure layer when scaling is prescribed a time limit down more than or equal to this convergent-divergent interval.
3, geocoding science, the layers that dormitory, classroom, laboratory building etc. are different are presented at together, directly on figure, encode, and what a numbering is system compile in advance, and the user revises before use.The new dormitory of drawing of system keeps track, classroom etc. require its title of input and numbering after having painted figure, so that when generating Customs Assigned Number, extract.
4, problem feedback and background database manager are convenient, collect each user opinions or suggestions in use.Can realize the operation such as output, renewal, deletion of data through the simple ultra work on backstage.
In application implementation, the technique effect of terminal provided by the present invention Integrated Solution be far above above-mentioned those.And the characteristics that have variation, flexibility on its execution mode.The related personnel of this area is to be understood that; Embodiment as stated is only as illustrating one of necessary means of this invention, under the prerequisite that does not break away from flesh and blood of the present invention; To all equivalent deformations or the modification that the present invention made, all should be included among the scope of this case claim protection.
Claims (10)
1. based on the campus localization method of LBS platform, it is characterized in that may further comprise the steps:
S1: with the portable terminal access server side or with the Browser/Server structure individual PC termination is gone into server end with the Client/Server structure based on wireless communication technology; In the management of server end butt joint access customer, the management of sight package, sight setting and issue, navigation Service and GIS management, said server end is the core component of campus LBS platform;
S2: under outdoor open environment, the location is realized in the position of mobile phone users in the campus, present map visually through global position system GPS;
S3: under indoor environment; Mobile phone users inserts the Internet network and is connected interactive information with server end through the mobile gateway of WLAN and GIS network; Individual PC end subscriber is connected interactive information through WLAN, ICP/IP protocol with server end; Be implemented in the location of campus indoor location, present map visually.
2. the campus localization method based on the LBS platform according to claim 1 is characterized in that: comprise among the step S1:
S11, Admin Administration's flow process, the manager provides user profile data maintenance, Yellow Page data maintenance, spatial geography data to safeguard and the system message Push Service based on WEB interface setting navigation system;
S12, positioning flow; Server end is based on sight setting and issue, navigation Service; Reception comes from the geographical relevant information in place of each portable terminal or the individual PC end of Internet network, and these information are presented to mobile phone users or individual PC end subscriber with visual map;
S13, database support process; In server end access, modification, deletion user profile data, Yellow Page data, spatial geography data or system message, and utilize aggregation of data, simulation, analysis and the evaluating ability of server end to realize simulation and the prediction that the geographical space process develops.
3. the campus localization method based on the LBS platform according to claim 2 is characterized in that: among the step S13, said server end provides geodata service, directory service, collaboration services and subscriber information management service.
4. the campus localization method based on the LBS platform according to claim 1; It is characterized in that: among the step S3; Under indoor environment, mobile phone users inserts the used wireless local net mode of Internet network and comprises: Wi-Fi transmission, GPRS transmission or based on the radio frequency line ripple transmission of arrowband wireless router.
5. the campus localization method based on the LBS platform according to claim 1 is characterized in that: among the step S1, the method for sight package management is: the process that shows campus scenario factors figure layer according to customer requirements; The campus scenario factors is divided into seven layers, is respectively building, comprise the classroom of reading room, laboratory and office; School's road; Retail shop, dining room, square and waters; Said requirement shows that the process of campus scenario factors figure layer depends on the user to presenting the multistage scaling of map, and only current scaling more than or equal to the corresponding level convergent-divergent interval following in limited time, play up this grade campus scenario factors.
6. based on location, the campus realization system of LBS platform, it is characterized in that comprising:
Campus LBS platform: with the portable terminal access server side or with the Browser/Server structure individual PC termination is gone into server end with the Client/Server structure based on wireless communication technology; In the management of server end butt joint access customer, the management of sight package, sight setting and issue, navigation Service and GIS management, said server end is the core component of campus LBS platform;
Portable terminal under outdoor open environment is realized the location through global position system GPS to the position of mobile phone users in the campus, presents map visually;
Portable terminal under indoor environment or individual PC end; Mobile phone users is connected and interactive information through the mobile gateway access Internet network of WLAN and GIS network and with server end; Individual PC end subscriber is connected with server end and interactive information through WLAN, ICP/IP protocol; Be implemented in the location of campus indoor location, present map visually.
7. location, the campus realization system based on the LBS platform according to claim 6 is characterized in that said campus LBS platform comprises three part of module, is respectively:
Admin Administration's module, the manager provides user profile data maintenance, Yellow Page data maintenance, spatial geography data to safeguard and the system message Push Service based on WEB interface setting navigation system;
The locator program module; Server end is based on sight setting and issue, navigation Service; Reception comes from the geographical relevant information in place of each portable terminal or the individual PC end of Internet network, and these information are presented to mobile phone users or individual PC end subscriber with visual map;
The database supporting module; In server end access, modification, deletion user profile data, Yellow Page data, spatial geography data or system message, and utilize aggregation of data, simulation, analysis and the evaluating ability of server end to realize simulation and the prediction that the geographical space process develops.
8. location, the campus realization system based on the LBS platform according to claim 7 is characterized in that: comprise geographical data bank, directory database, collaboration data storehouse and subscriber information management database in the said database supporting module.
9. location, the campus realization system based on the LBS platform according to claim 1, it is characterized in that: the mobile phone users under indoor environment inserts the used WLAN of Internet network and comprises: Wi-Fi, GPRS or based on the radio frequency line ripple of arrowband wireless router.
10. location, the campus realization system based on the LBS platform according to claim 1; It is characterized in that: campus LBS platform includes a sight package administration module: the process according to customer requirements demonstration campus scenario factors figure layer, the campus scenario factors is divided into building, and comprise the classroom of reading room, laboratory and office; School's road; Retail shop, dining room, seven layers in square and waters; Said requirement shows that the process of campus scenario factors figure layer depends on the user to presenting the multistage scaling of map, and only current scaling more than or equal to the corresponding level convergent-divergent interval following in limited time, play up this grade campus scenario factors.
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| IT201700101187A1 (en) * | 2017-09-12 | 2019-03-12 | Maurizio Perla | Automatic device for cutting queues to eliminate waiting times during school interviews. |
| CN108335246A (en) * | 2018-02-09 | 2018-07-27 | 天津城建大学 | Campus information method of servicing and system based on augmented reality and location-based service |
| CN108920570A (en) * | 2018-06-22 | 2018-11-30 | 湖北科技学院 | A kind of campus information method of servicing and system |
| CN110704552A (en) * | 2018-06-22 | 2020-01-17 | 镇江雅迅软件有限责任公司 | Indoor space information management system |
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| CN111506645B (en) * | 2020-03-26 | 2024-02-09 | 河南师慧信息技术有限公司 | Three-dimensional visual management platform based on GIS |
| CN115426401A (en) * | 2022-08-31 | 2022-12-02 | 国家开放大学 | Information pushing method and device based on teaching space |
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