CN103020136A - Geographic information in-time interaction system and method - Google Patents
Geographic information in-time interaction system and method Download PDFInfo
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Abstract
The invention relates to a geographic information in-time interaction system and a method. The system comprises a user management module, a geographic information interaction module, a multimedia interaction module and an information subscription module, wherein the user management module is used for authentification of users of the system, on line and off line management of the users, and user authorization management; the geographic information interaction module is used for interaction of geographic information of terminals, receiving the geographic information sent by the terminals, and transmitting the geographic information to other terminals in a real-time manner; the multimedia interaction module is used for transmitting the multimedia data including location information in a real-time manner to achieve the information interaction of the terminals; and the information subscription module is used for receiving information sent by the other terminals and showing the information to the electronic maps of the terminals after the information is analyzed. The system and the method achieves the interaction of users to a geographic information system, meanwhile, achieves the real-time transmission of image and video resources acquired by the terminals and including location information, overcomes the defect that the traditional geographic information system does not acquire the real-time geographic information data, and achieves the stability and the accessibility of interaction.
Description
Technical field
The present invention relates to a kind of technical field of information processing, specifically, relate to a kind of system and method for geography information real-time interactive.
Background technology
Traditional geographic information application system, geographic information data generally adopts the mode of database storage, the user wants to obtain geographic information resources, need to carry out the query and search operation according to system's operation instructions " initiatively ", the mode that is obtaining information is " drawing (pull) " pattern, the pull pattern not only takies a large amount of running time of user, and because geographic information data is to produce in advance warehouse-in and regular update, (for example major accident is on-the-spot can not to satisfy user's information resources strong to requirement of real-time, emergency command resource etc.) quick obtaining demand; Moreover for the traditional geographic information application of majority, data stream is confined between system and the unique user more, current geography information common platform is built the Adoption Network service technology and has been realized the geographic information data resource sharing, but web services technologies is difficult to comprehensive, stable, expeditiously interaction between a plurality of users of realization system.In the face of major natural disasters and emergency event the time, traditional Geographic Information System can provide good geographic information services and decision support, but can not satisfy the demand of multidisciplinary real-time interlock, collaborative work.
Summary of the invention
The object of the present invention is to provide a kind of geography information real-time interactive system, solved the technical matters that prior art can not realize the geography information real-time interactive.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of geography information real-time interactive system, described system comprises:
User management module, the user who is used for system authenticates, the online outline management of user and user authority management;
The geography information interactive module is used for carrying out the interaction of terminal room geography information, the geography information that receiving terminal sends, and with this geography information real time propelling movement to other-end;
The multimedia interaction module for the multi-medium data real-time Transmission that will comprise positional information, realizes the information interaction of terminal room;
The information subscribing module, be used for to receive message that other-end sends and message resolved after be presented in the electronic chart of terminal.
Preferably, described geography information interactive module comprises map operation module, information inquiry module and map plotting module.
Preferably, described multimedia interaction module comprises real-time video delivery module and realtime graphic delivery module.
Design based on above-mentioned geography information real-time interactive system the invention allows for a kind of geography information real-time interactive method, and described method is as follows:
Terminal is encapsulated as the object message of serializing to the operation information of geography information real-time interactive system; The message object of message server receiving sequence, and the message object of transmitting in real time serializing is persisted in the database to other-end or with the message object of serializing;
The message object of the serializing in the terminal receive data storehouse or accept the serializing message object that message server is transmitted, and the Context resolution that automatically message object of serializing is comprised and being presented on the map.
Compared with prior art, advantage of the present invention and good effect are: the advantage of inheriting tradition Geographic Information System of the present invention aspect location-based service and data display, by means of mature and stable message-oriented middleware, the user can receive information resources from various media (distributed clients, mobile device, server etc.) " pushing away (push) " in the mode " passive " of online or off-line, and with these information displays to electronic chart.Can the based on data Principle of Communication carry out interaction and real-time Data Transmission between the user, system also can be used as independently module integration in existing application system and is widely used in the fields such as emergency command, Safe Production Supervision.The present invention has realized the interaction of user to Geographic Information System, realized simultaneously based on transmission now of the image terminal collection, that comprise positional information and video resource, remedied traditional Geographic Information System in the deficiency of obtaining aspect the real-time geographic information data.The present invention supports multiple transportation protocol, also supports high performance cluster and message persistence at a high speed, stability, the ease for use of really having accomplished interaction can be provided.
For example take the Police Command Center scene as example, the decision maker, each staff of relevant departments, emergent field personnel is as the distributed terminal user of real-time interactive Geographic Information System, the decision maker sends various instructions, for example map navigates to emergent on-the-spot, peripheral school superposes, hospital and emergency resources information, display systems analysis result etc., the staff carries out system's operation or uses at the scene mobile device photographic images and video after receiving instruction, and the result is pushed to decision maker's terminal, the authority that the decision maker gathers according to each side, commanding and decision-making work is carried out in real-time information.
After reading by reference to the accompanying drawings the detailed description of embodiment of the present invention, other characteristics of the present invention and advantage will become clearer.
Description of drawings
Fig. 1 is the system chart of the specific embodiment of the invention.
Fig. 2 is the workflow diagram of the specific embodiment of the invention.
Fig. 3 is the functional structure chart of specific embodiment of the invention geography information interaction module.
Fig. 4 is the functional structure chart of specific embodiment of the invention mobile device multi-medium data acquisition module.
Fig. 5 is the functional structure chart of specific embodiment of the invention message subscribing module.
Fig. 6 is the software architecture figure of specific embodiment of the invention real-time interactive Geographic Information System.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
As shown in Figure 1, a kind of geography information real-time interactive system, the main application of this system is based on the geography information interaction between the network data communication realization system user, and the real-time high-efficiency of realizing the multi-medium datas such as image, video, sound by convenience and the express network of mobile device transmits.System comprises user management module, geography information interactive module, multimedia interaction module and information subscribing module.
User management module mainly manages the terminal user, comprises user authentication module, carries out that the user authenticates, the online outline management module of user and user authority management module.The geography information interactive module comprises map operation module, information inquiry module and map plotting module, is used for carrying out the interaction of terminal room geography information, the geography information that receiving terminal sends, and with this geography information real time propelling movement to other-end.The multimedia interaction module is used for comprising the multi-medium data real-time Transmission of positional information, realizes the information interaction of terminal room, comprises real-time video delivery module and realtime graphic delivery module; The information subscribing module be responsible for receiving message that other-end sends and message resolved after be presented on the map of terminal.
The below introduces the implementation procedure based on geography information interaction function, the collection of mobile device multi-medium data and the transfer function of JMS realization and three parts of user's online message subscription function.
1). as shown in Figure 3, geography information interaction functional interface design: the user is encapsulated as Java serializing object to the basic operation of system, based on JMS Specification Design Spring Bean, the message object of Spring Bean receiving sequence is as parameter and be converted to the ObjectMessage of JMS, transfers at last ActiveMQ and processes.
2). as shown in Figure 4, mobile device multi-medium data acquisition interface design: design and develop the Servlet that supplies the mobile device internet interview based on J2EE, the image of Servlet reception mobile device collection and video resource are as parameter and be converted to StreamMessage (data flow message), transfer to ActiveMQ by Spring Bean at last and process.
3). as shown in Figure 5, the design of user message subscribing interface: user oriented interface mainly utilizes the Flex technology to realize, the front is mentioned the producer/consumer (Producer/Consumer) assembly that utilizes Flex to carry and is realized message production and subscription, for the message that sends, need to transfer to by BlazeDS the Spring Bean processing on backstage, for the message of subscribing to, then utilize the powerful Data Analysis function of Flex, the text that comprises in the JMS message, image, audio-frequency information Flex can both resolve and be illustrated on the electronic chart easily.
System has adopted multi-level framework mode on software architecture, being divided into from the bottom to the top layer is three levels, is successively: data Layer, service layer, service application layer.System is by multi-level framework mode, for systemic-function exploitation provides relatively independent from data to service, from serving to the system architecture of using, thereby obtain good system performance, and be with good expansibility and better stability and robustness.General frame figure is as shown in Figure 6:
1). data Layer: data Layer mainly relies on the ActiveMQ message server to support, and the based on data Principle of Communication receives the JMS message that service layer transmits, and is forwarded to the client user who subscribes to this message.If need to support user's off-line JMS message sink, then need to configure ActiveMQ JMS message is persisted to (relational database of support main flow) in the relational database, and be set to " lastingly " pattern in service layer's JMS message.
2). service layer: service layer is divided into the communication interface of three steps foundation and data Layer and offers the service interface of service application layer:
At first, set up the data communication of Spring Bean and data Layer ActiveMQ, be responsible for receiving and sending JMS message;
Secondly, the message channel (message destination) of configuration BlazeDS is responsible for the data communication at Spring Bean and Flex front end;
The 3rd, exploitation Servlet application access interface offers service application layer and uses, for example the mobile device image transmission module.
3). service application layer: based on geography information API exploitation geography information basic function, set up the function that the Flex front end applications sends and receives messages based on the producer/consumer among the Flex API (Producer/Consumer) assembly.
Simultaneously, the invention allows for a kind of geography information real-time interactive method, described method is as follows:
Terminal is encapsulated as the object message of serializing to the operation information of geography information real-time interactive system; The message object of message server receiving sequence, and the message object of transmitting in real time serializing is persisted in the database to other-end or with the message object of serializing;
The message object of the serializing in the terminal receive data storehouse or accept the serializing message object that message server is transmitted, and the Context resolution that automatically message object of serializing is comprised and being presented on the map.
As shown in Figure 2, the specific implementation of the present embodiment is as follows:
JMS (Java Message Service, the Java messenger service) be towards MOM (Message Oriented Middleware in the Java platform, message-oriented middleware) application programming interfaces are mainly used in utilizing between distributed system the message passing mechanism of high efficient and reliable to carry out data exchange.The JMS application structure is supported two kinds of message models: queuing model and publisher/subscriber's model (publish/subscribe), and queuing model is point-to-point messenger service, namely only has a user to obtain the message of appointment; Publisher/subscriber's model supports sends message, the message that a plurality of users of client can subscribe to this theme to a specific theme.What adopt in the design process of geography information interactive approach is publisher/subscriber's model, soon the user is established as a subscription (Subscription) to the operation of Geographic Information System, all users that subscribe to this message will be in receiving end automatic reception message, each user can be used as publisher and the subscriber of message, thereby has realized the interaction between the user.
The developing principle of system is: take Flex as the foreground, build interactive geographical Information System Frame in conjunction with J2EE and BlazeDS; Embed the Spring technology, use the Sender bean of Spring to send JMS message, use the Receive bean receipt message of Spring; Be responsible for the sending and receiving message request of process user at " Producer/Consumer (producer/consumer) " assembly that the application program front end utilizes Flex to carry, and send a message on subscriber's client by the messaging pattern of BlazeDS; ActiveMQ is deployed on the server separately as the middleware of processing JMS message, and can be according to multi-user concurrent demand configuration High-Performance Computing Cluster.
According to JMS technical manual and development interface design geography information interactive approach, mainly comprise following step:
1. build message server, realize the message terminal of geography information interaction as the user.
Message server based on data Principle of Communication receives JMS message network terminal user transmission, the process encapsulation process, and these message are sent to the client user who subscribes to this message.If need to support user's off-line JMS message sink, then need the configuration messages server that JMS message is persisted in the relational database.The design's method adopts ActiveMQ as message server.ActiveMQ is that Apache produces, the messaging bus most popular, that ability is powerful, it supports multiple transportation protocol, also supports high performance cluster and message persistence at a high speed can be provided, and can provide stable, efficient data transport service for the geography information interaction.
2. realize the encapsulation of JMS message based on JMS standard and J2EE technology, as the tie of message server and client user's operation information.
The design's method is according to the JMS standard, adopt Spring Bean technology with the operation information of user to Geographic Information System, operations such as map convergent-divergent, data query, map plotting, image/video resource transmission is encapsulated as the message object (ObjectMessage) of serializing, and is sent to message server.
3. adopt Flex technology and BlazeDS assembly to realize the data communication of Flex client and backstage Spring Bean.Groundwork is that the message channel (message destination) of configuration BlazeDS is responsible for the data communication at Spring Bean and Flex front end.
4. the message encapsulation and transmission of concrete business function customized development and Flex client.
Develop various geography information basic functions based on geography information API and mobile device development interface, such as map view, information inquiry, map plotting, mobile device image and video acquisition etc., based on the development interface of Flex technology the user is encapsulated as serializing object (Object) to the operation of Geographic Information System, and utilizes the producer/consumer (Producer/Consumer) assembly of Flex to set up that the Flex front end applications sends and the function of subscribe message.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. geography information real-time interactive system, it is characterized in that: described system comprises:
User management module, the user who is used for system authenticates, the online outline management of user and user authority management;
The geography information interactive module is used for carrying out the interaction of terminal room geography information, the geography information that receiving terminal sends, and with this geography information real time propelling movement to other-end;
The multimedia interaction module for the multi-medium data real-time Transmission that will comprise positional information, realizes the information interaction of terminal room;
The information subscribing module, be used for to receive message that other-end sends and message resolved after be presented in the electronic chart of terminal.
2. geography information real-time interactive according to claim 1 system, it is characterized in that: described geography information interactive module comprises map operation module, information inquiry module and map plotting module.
3. geography information real-time interactive according to claim 1 system, it is characterized in that: described multimedia interaction module comprises real-time video delivery module and realtime graphic delivery module.
4. geography information real-time interactive method, it is characterized in that: described method is as follows:
Terminal is encapsulated as the object message of serializing to the operation information of geography information real-time interactive system; The message object of message server receiving sequence, and the message object of transmitting in real time serializing is persisted in the database to other-end or with the message object of serializing;
The message object of the serializing in the terminal receive data storehouse or accept the serializing message object that message server is transmitted, and the Context resolution that automatically message object of serializing is comprised and being presented on the map.
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| CN111371890A (en) * | 2020-03-03 | 2020-07-03 | 李超 | Geographic information push service system based on 5G |
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Application publication date: 20130403 |