CN103095823A - Object description method and object information interaction system in Internet of Things system - Google Patents
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Abstract
The invention discloses an object description method and an object information interaction system in an Internet of Things system. The object description method includes a first step of creating a metadatabase used for defining object information features in the Internet of Things system, wherein the metadatabase is provided with core information metadata and extension information metadata, the core information metadata is used for describing the feature information of the type of objects, and the extension information metadata is the information relevant to the type of objects, a second step of creating a core property file, restricting the structure and content of the relevant files, and combining the metadata with different extension properties based on the core property file, and generating corresponding metadata property template files according to the types of the objects, and a third step of describing the files of the objects in an instantiation mode based on the metadata property template files and collected data. According to the object description method, description information includes process relevant metadata and business extension metadata, so the method can well track flow and production process conditions of the objects, and enables the object information in the Internet of Things to be standardized.
Description
Technical field
The present invention relates to the technology of Internet of things field, specifically, the software development and the data storage that relate in a kind of Internet of things system provide a kind of general object factory method and object information interactive system.
Background technology
Development through nearly decades, huge success has been obtained in the Internet, its WWW World Wide Web (WWW) is by HTML (HTML, Hypertext Markup Language) language carries out information exchange, and its common phenomenon is that the shown web page address of browser is take .htm(or .html) be to end up.Take the Internet technology of existing maturation as the basis, at present newly set up again another and be different from internet function and the Internet of Things more huger than the Internet, this system can be automatically, in time corresponding event is identified, follows the trail of, monitors and triggered to object.Internet of Things is a hot technology in recent years, and it is widely used in each fields such as traffic, logistics, business, management now, and the problem that faces is exactly how to realize that article identify, follow the trail of between different Internet of Things subsystems; How to make Item Information all in Internet of Things by the same information exchange of html language.
And the existence of Internet of Things perception information is uncertain, be mainly manifested in three aspects: the description of perception Item Information is uncertain, perception article Information fusion is uncertain, the use perception Item Information is uncertain, only has to have solved these three problems and could realize that information integrates to realize effective utilization of Internet of Things information.
Need at present especially a kind of good Internet of Things Information Interaction Model solve this problem, it is designed for all description standards of spendable natural forms of people and machine, is used for the identification of Internet of things system network information, exchange, storage.Solve article and identify, follow the trail of, exchange, store between different Internet of Things subsystems, basic condition invests article exactly with sign and base attribute.Sign is to give one of article unique " identity card ", and electric product coding (EPC, Electronic Product Code) system has well solved the sign of article; And the goods attribute description does not have good solution at present in Internet of Things.
Article in the reality real world are rich and varied, are difficult to objectively to describe each object with a unified language.But natural forms has common characteristic, as object names, volume, weight; General character on time, space is arranged again when enterprise, individual's transaction.For example, orange, orange, unified orange are many, and their threes belong to food, and orange, orange belong to crops, and how orange is again the commodity after orange processing; Conclude the business time, the place of one case orange of people is again identical.But some relevant informations of natural forms (as grown place, shelf-life) can not change.Each article has the attribute of its physics own, and this comprises volume and quality.And they often also will consider internal structure.They are had, and also will be concluded the business between these companies and individual by different company, individual in addition.In a word, they are present in time and space.How with the description of spontaneous combustible substances, be used for the identification of Internet of things system network information, exchange, storage, this is the problem that Internet of Things will be faced.
The uncertainty of only having real solution Internet of Things perception information, the various application of Internet of Things will obtain flourish, and the information of institute's perception is set up a huge network system, and can carry out information interaction and integration to it, and Internet of Things is just meaningful like this.
A solution of the prior art is that a kind of universal monitor model that utilizes is to the method for information system monitoring, comprise step: (1) is set as general management object with the various monitored object unifications in information system and is described, and each management object comprises: the attribute that can monitor, the method for getattr; (2) use the general-purpose accessing agreement to realize the method for getattr; (3) define management object and access thereof by configuration mode, according to certain grammar request, by the mode of writing configuration file, management object is described, after completing configuration file and writing, generate the java program corresponding with this kind equipment by program; Instance objects of the every establishment of this java program, namely corresponding with an example apparatus of this kind equipment in reality, by the control to this java object, can realize the monitoring to physical device.
the another kind of Internet of Things information source that provides in prior art is unified to be described and access method, the method is to complete the registration of information source by the server on the Internet, the unified description and access, be specially the deployer of receiver networking awareness apparatus and/or data the user registration request and authorize, receive the deployer to the registration of awareness apparatus, automatically generate its corresponding single piece of information source serve port and description thereof, receive deployer or user's rule of combination definition, automatically generate combined information source serve port and description thereof, to single piece of information source and combined information source unified distribution sign, and serve port and description thereof are stored, receive user's retrieval request, search serve port and description thereof, the user obtains data by serve port.The present invention can unify to describe and registration to information source, for industry, and can simplify the design of application and awareness apparatus.
In sum, in the solution that existing correlation technique provides, be the universal monitor model for the information system monitoring of Internet-based, the specific characteristic for Internet of Things does not define general monitored object.
Summary of the invention
The invention provides the object factory method and system in a kind of Internet of things system, can make the Item Information standardization in Internet of Things.
The describing method of object in a kind of Internet of things system provided by the invention comprises:
Create the metadatabase that is used for defining Internet of things system object information feature, this metadatabase is divided into two classes: core information metadata and extend information metadata, described core information metadata is for being used for describing the characteristic information of such article self, the information of described extend information metadata for being associated with this class object;
Create the core attribute file, retrain and different extended attribute metadata is made up based on structure and the content of this core attribute file to relevant documentation, according to the corresponding metadata attributes template file of type generation of object;
Come instantiation to describe the document of this object based on the data of metadata attributes template file and collection.
The present invention also provides a kind of object information mutual system of realizing in the Internet of things system sensing network, comprising: client, the webserver, simple object access protocol engine, network server end program, data storage cell, wherein:
Described client is used for initiating Item Information inquiry, the renewal of article real-time route and the request of article path query to the webserver, and accepts the webserver and return to accordingly result;
The described webserver be used for to receive client-requested, resolves, the errorless rear SOAP of the issuing engine of demonstration validation, and result is turned back to client;
Described SOAP engine is used for the request service from the webserver is navigated to specific service processing program, and result is returned to the webserver;
Described server program, be used for to be filled into the metadata attributes template file by the object information of awareness apparatus collection, the object information that gathers like this will be got up with the XML stored in file format, instantiation generates an XML document of describing this object, and accept the parameter that described client sends, complete some logical process and data access operation, and result is returned to the SOAP engine;
Described data storage cell, arrange and preserve metadatabase and object information description document, this metadatabase comprises core information metadata and extend information metadata, described core information metadata is for being used for describing the characteristic information of this object self, the information of described extend information metadata for being associated with this object.
The present invention also provides a kind of method of inquiring about object information in Internet of Things, comprises the steps:
Read the label of the query object of wanting, gather corresponding coded message;
Find the core information file of corresponding former object according to described coded message;
Resolve described core information file, and preserve the result of resolving;
The result of described parsing is issued the simple object access protocol engine, and the SOAP engine passes to result after treatment client and shows, result comprises that object information describes document.
In sum, the technical scheme that object information in a kind of Internet of things system provided by the invention is described and identified, adopted the metadata modeling mode, set up the metadata of definition Internet of Things article (monitoring target) attribute of a cover standard, the title of core attribute, data type, codomain, data precision etc. are all made unique definition, be conducive to the exchange of Internet of Things article (monitoring target); Because this cover Internet of Things article (monitoring target) metadata schema has very strong extended capability, allow the metadata of different types to carry out association and expansion, be highly suitable for the abundant Internet of Things information resources of data type.
Also comprised in technical scheme provided by the invention positional information metadata and extended attribute metadata in process associated metadata and business extended metadata, make its well flowing and the production process situation of tracking items, can make the Item Information standardization in Internet of Things.
Description of drawings
Fig. 1 is the object factory method flow diagram in a kind of Internet of things system provided by the invention;
A kind of Internet of things system object information interactive system schematic diagram of Fig. 2 for providing in specific embodiments of the present invention;
Fig. 3 is the method flow diagram of object information in inquiry Internet of Things provided by the invention;
The image data model of object in the Internet of Things that provides in the embodiment of the present invention is provided Fig. 4;
Fig. 5 realizes object information interactive mode schematic diagram in Internet of things system for utilize XML and the general-purpose accessing agreement that provides in the specific embodiment of the invention.
Embodiment
In view of deficiency of the prior art, the invention provides a kind of object factory method in Internet of things system, utilize the characteristic of metadata and XML that the description monitoring target is set, and can identify, exchange, store in the Internet of things system network.
The effect of metadata is: in trillion various objects (as, article) when being identified in Internet of Things, how to find according to demand the object that needs (as, article) or the ID by thing to understand what object (as, article) is on earth when number.Change in short say be exactly search on the Internet of Things network object (as, article) or when service, only need by input No. ID or crucial metadata, as: manufacturer (or service provider), title, model, valid expiration date, function, state, fail safe etc., just can retrieve in Internet of Things this object (as, article) or service, and can inquire its essential information and current state, and by the data of association mandate, related link be operated.When setting up metadata, be the label of XML with many element definitions of metadata, carry out the nested type definition of XML label according to the rank difference of element, and utilize the stylesheet language of XML to realize conversion and demonstration between metadata making the interoperability of metadata become simple.Simultaneously, if metadata is all represent and store with the XML language, utilize the architectonic communication of XML and data transmission mechanism, can be easy to realize the inquiry on the metadata network, the operation such as mutual.
Various objects in Internet of Things finally all can be presented as the description of the metadata of object, the monitoring target of Internet of Things just can be identified in network, exchanges and store like this, therefore must study Internet of Things and how utilize metadata and XML characteristic to describe the universal method of monitoring target.The metadata of Internet of Things object will be stipulated the contents such as the sign, title, explanation, value of metadata, be used for describing the general character part of Internet of Things object; Stipulate simultaneously expansion principle and the method for metadata, be used for generating the extended metadata towards application-specific, finally realize the unified description of various information content.
Core of the present invention will be caught these objects (as, article) and the most basic physical attribute of environment exactly, their is described showing, and can information identification, exchange, storage in the Internet of things system network.
With reference to Fig. 1, the invention provides a kind of object factory method in Internet of things system, comprising:
S101, create the metadatabase of object information feature in the definition Internet of things system, this metadatabase is divided into two classes: core information metadata and extend information metadata, the core information metadata is for being used for describing the characteristic information of this class object self, the information of extend information metadata for being associated with this class object;
S102 creates the core attribute file, retrains and different extended attribute metadata is made up based on structure and the content of this core attribute file to relevant documentation, according to the corresponding metadata attributes template file of type generation of object;
S103 will be filled into by the object information of awareness apparatus collection on the metadata attributes template file in Internet of things system, get up with the XML stored in file format, and instantiation generates an XML document of describing this object.
Wherein, the characteristic information of object self one of comprises in following information at least:
Positional information, perception information and composition information.
Wherein, the information that is associated of object one of comprises in following information at least:
The extend information that the change information of object, process of circulation relevant information, business are used.
Wherein, the document of described this object of description is the expandable mark language XML file.
Wherein, set core information metadata comprises metadata connotation, title, data type, codomain, note.
Described type according to object generates corresponding metadata attributes template file, and it is subjected to the constraint of core attribute file, has described the data capture logic relation between each part in the Internet of things system, specifically comprises four dvielements:
Sensor (transducer), tag (label), Observation (collector) and Data (data).
The step of the document of this object is described in described generation, comprising:
At first, transducer sends acquisition instructions to collector, and collector gathers tag information and object core information;
Secondly, to be filled on the metadata attributes template file by collector tag information and object core information and self-defining object extension information in Internet of things system, object information will be got up with the XML stored in file format like this, and instantiation generates an XML document of describing this object
Wherein, the content in described core attribute file comprises at least:
The data of transducer, label, collector and collection.
Wherein, be expandable mark language mode XML Schema file at core attribute file described in specific embodiments of the present invention, be used for describing the structure of XML document.
Expandable mark language mode XML Schema file is used for describing the structure of XML document, and its expansion is called .xsd (XML Schema Definition namely is called for short again XSD).An XML Schema can define: whether the quantity of the attribute that occurs in the element that occurs in document, document, daughter element, daughter element, the order of daughter element, element are acquiescence and the fixed value of data type, element or the attribute of sky, element and attribute.
With reference to Fig. 2, the present invention also provides a kind of object information interactive system in the Internet of things system sensing network that realizes, this system comprises: client, the webserver, Simple Object Access Protocol (SOAP, Simple Object Access Protocol) engine, network server end program, data storage cell, wherein:
Described client is used for initiating object (as, article) information inquiry, object (as, article) real-time route upgrades and object (as, article) path query request to the webserver, and accepts the webserver and return to accordingly result;
The described webserver be used for to receive client-requested, resolves, the errorless rear SOAP of the issuing engine of demonstration validation, and result is turned back to client;
Described SOAP engine is used for the request service from the webserver is navigated to specific service processing program, and result is returned to the webserver;
Described server program, be used for to be filled into the metadata attributes template file by the object information of awareness apparatus collection, the object information that gathers like this will be got up with the XML stored in file format, instantiation generates an XML document of describing this object, and accept the parameter that described client sends, complete some logical process and data access operation, and result is returned to the SOAP engine;
Described data storage cell, arrange and preserve metadatabase and object information description document, this metadatabase comprises core information metadata and extend information metadata, described core information metadata is for being used for describing the characteristic information of this object self, the information of described extend information metadata for being associated with this object.
Wherein, the characteristic information of described object self one of comprises in following information at least:
Positional information, perception information and composition information.
The information that described object is associated one of comprises in following information at least:
The extend information that the production process relevant information of object, process of circulation relevant information, business are used.
The object information description document is the expandable mark language XML file.
With reference to Fig. 3, a kind of method of inquiring about object information in Internet of Things provided by the invention comprises the steps:
S301 reads the label of the query object of wanting, and gathers corresponding coded message;
S302 finds the core information file of corresponding former object according to described coded message;
S303 resolves described core information file, and preserves the result of resolving;
S304 issues the simple object access protocol engine with the result of described parsing, and the SOAP engine passes to result after treatment client and shows, result comprises that object information describes document.
Wherein, described core information file is the expandable mark language XML file.
Described coded message is electric product coding (EPC, Electronic Product Code).
For the purpose, technical scheme and the advantage that make patent of the present invention is more clear, below with reference to specific embodiment, and in conjunction with attached figure, embodiment of the present invention is described in detail further.
The information that the invention provides object in a kind of Internet of things system is described and recognition methods, and a kind of dynamic environment can be provided, make the static state relevant to monitoring target, data dynamic and that processing is crossed can identify in Internet of things system, exchange, store.
The method provide the object in the Internet of things system (as, article) data model of information gathering, be used for describing the data capture logic relation between each part in Internet of things system, its sub sensor Sensor, label Tag, acquisition logic Observation and data Data four parts, its data model as shown in Figure 4.
The method provides the metadatabase of object (as, article) attribute in a definition Internet of things system, and it utilizes the characteristic of metadata, provides a kind of general standardization vocabulary to represent the relevant information of Internet of Things sensing network institute energy recognition object.The metadatabase of object in this Internet of things system (as, article) attribute has two class metadata: a class is the core information metadata, and another kind of is extend information metadata (as shown in Figure 1).The core information metadata is used for Direct function description object (as, article), generally can be generated by the awareness apparatus collection, and it comprises positional information, perception information and composition information etc.; The extend information metadata is used for providing the object information that (as, article) is associated, and is generally self-defined by system, and it comprises that object (as, article) is processed into the relevant information of product, process relevant information and other business extend information of product trading circulation.
The method provides under the constraint of core attribute XML Schema filespec, and different metadata is made up, the object different according to the dissimilar generation of object (as, article) (as, article) the attribute templates file.
Implementation step in specific embodiments of the invention is as follows:
At first, the object in the definition Internet of things system (as, article) the core information metadata.Such as the object location metadata of (as, article), comprise longitude, latitude and elevation etc.; The object that the perception information of object (as, article) can directly collect by awareness apparatus (as, article) information comprises the object quality of (as, article), temperature of environment of living in etc.The part of main definition has: the definition of metadata connotation, English name, data type, codomain, short name, note etc.
Secondly, the object in the definition Internet of things system (as, article) the extend information metadata.If Internet of things system is applied to the agricultural product quality traceability system, just define the associated metadata of monitored target (agricultural product) production, processing, the transaction process of circulation.Such as: agricultural product places of production information word data comprise place of production title, Code of the production places, cultivated area etc.
The 3rd, definition core attribute XML Schema file, the definition of core attribute XML Schema file according to the object in Internet of things system (as, article) data model of information gathering, its composition mainly comprises: transducer Sensor, label Tag, acquisition logic Observation and data Data four parts, its data model as shown in Figure 4.
The 4th, the metadata that defines is above carried out the different object of combination producing (as, article) attribute templates file.Mode according to core metadata+extended metadata, its core metadata all select with extended metadata according to object (as, article) type is different and choose corresponding metadata, generation is subjected to object (as, article) the attribute templates file of core attribute XML Schema filespec constraint.Such as the set of metadata with the place of production defined above title, Code of the production places, cultivated area is defined as agricultural product places of production information altogether.
The 5th, come the instantiation entity object according to the data of metadata attributes template file and collection, formation object (as, article) information is described XML document.
It is as follows that object (as, article) information is described XML document:
The content that object (as, article) information is described in XML document is briefly described:
(1) object (as, article) information is described XML document and should be followed the constraint of core attribute XML Schema filespec.Describe in XML document in object (as, article) information, the UMOXMLcore element is between a beginning label (note, the label here is not that the RFID label refers to the XML element tags) and end-tag.Such as:＜UMOXMLcore:observation〉and＜/UMOXMLcore:observation〉etc.
(2)＜UMOXMLcore:Tag〉＜UMOuid:ID〉urn:epc:1:2.24.401＜/UMOuid:ID〉refer to that the EPC in the RFID label encodes, its version number is 1, domain name supervising. object classification. sequence number is 2.24.401, the decimal number that the binary data of being encoded by corresponding EPC converts to.URN is unified resource title (Uniform Resource Name), refers to that resource name is EPC.
(3) relation that has levels in document is noted the level of corresponding information under indicating.
In document, all labels all contain prefix "＜" and suffix "〉".Object (as, article) information is described XML document and is independent of host-host protocol and data memory format.
With reference to Fig. 5, a kind of XML of utilization that specific embodiments of the invention provide and general-purpose accessing agreement realize object in Internet of things system (as, article) information interaction mode, it realized object in Internet of Things (as, article) server-side processes program corresponding to information inquiry comprises step:
(1) the PAD intelligent terminal is initiated object (as, article) information inquiry, refers to namely that awareness apparatus reads to want the query object label of (as, article), and the EPC coding that collects is determined whether sky, if for sky finish, otherwise next step;
(2) find the XML file of corresponding former object (as, article) core information according to EPC;
(3) analyzing XML file;
(4) result that will resolve is kept in vector;
(5) issue the SOAP engine, the SOAP engine passes to client with it and shows after waiting some to process through coding again, and result such as object (as, article) information is described XML document.
In sum, the technical scheme that object information in a kind of Internet of things system provided by the invention is described and identified, adopted the metadata modeling mode, set up the metadata of definition Internet of Things article (monitoring target) attribute of a cover standard, the title of core attribute, data type, codomain, data precision etc. are all made unique definition, be conducive to the exchange of Internet of Things article (monitoring target); Because this cover Internet of Things article (monitoring target) metadata schema has very strong extended capability, allow the metadata of different types to carry out association and expansion, be highly suitable for the abundant Internet of Things information resources of data type.
Also comprised in method provided by the invention positional information metadata and extended attribute metadata in process associated metadata and business extended metadata, make its well flowing and the production process situation of tracking items, can make the Item Information standardization in Internet of Things.
Although the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (16)
1. the object factory method in an Internet of things system, is characterized in that, comprising:
Create the metadatabase that is used for defining Internet of things system object information feature, this metadatabase is divided into two classes: core information metadata and extend information metadata, described core information metadata is for being used for describing the characteristic information of such article self, the information of described extend information metadata for being associated with this class object;
Create the core attribute file, retrain and different extended attribute metadata is made up based on structure and the content of this core attribute file to relevant documentation, according to the corresponding metadata attributes template file of type generation of object;
Come instantiation to describe the document of this object based on the data of metadata attributes template file and collection.
2. object factory method as claimed in claim 1, is characterized in that, the characteristic information of described object self one of comprises in following information at least:
Positional information, perception information and composition information.
3. object factory method as claimed in claim 1, is characterized in that, the information that described object is associated one of comprises in following information at least:
The extend information that the change information of object, process of circulation relevant information, business are used.
4. object factory method as claimed in claim 1, is characterized in that,
The document of described this object of description is the expandable mark language XML file.
5. object factory method as claimed in claim 1, is characterized in that,
Set metadata comprises metadata connotation, title, data type, codomain, note.
6. object factory method as claimed in claim 1, is characterized in that,
Described type according to object generates corresponding metadata attributes template file, and this template file is subjected to the constraint of core attribute file, and the mathematical logic relation between each part of describing Internet of things system specifically comprises four dvielements:
Transducer (Sensor), label (tag), collector (Observation) and data (Data).
7. object factory method as claimed in claim 1, is characterized in that, the step of the document of this object is described in described generation, comprising:
At first, transducer sends acquisition instructions to collector, and collector gathers label information and object core information;
Secondly, will be filled on the metadata attributes template file by collector label information and object core information and self-defining object extension information in Internet of things system, and get up with the XML stored in file format, instantiation generates an XML document of describing this object.
8. object factory method as claimed in claim 1, is characterized in that, the content in described core attribute file comprises at least:
The data of transducer, label, collector and collection.
9. object factory method as described in claim 1 or 8, is characterized in that, described core attribute file is expandable mark language mode XML Schema file, is used for describing the structure of XML document.
10. realize in the Internet of things system sensing network it is characterized in that object information mutual system for one kind, this system comprises: client, the webserver, simple object access protocol engine, network server end program, data storage cell, wherein:
Described client is used for initiating Item Information inquiry, the renewal of article real-time route and the request of article path query to the webserver, and accepts the webserver and return to accordingly result;
The described webserver be used for to receive client-requested, resolves, the errorless rear SOAP of the issuing engine of demonstration validation, and result is turned back to client;
Described SOAP engine is used for the request service from the webserver is navigated to specific service processing program, and result is returned to the webserver;
Described server program, be used for to be filled into the metadata attributes template file by the object information of awareness apparatus collection, the object information that gathers like this will be got up with the XML stored in file format, instantiation generates an XML document of describing this object, and accept the parameter that described client sends, complete some logical process and data access operation, and result is returned to the SOAP engine;
Described data storage cell, arrange and preserve metadatabase and object information description document, this metadatabase comprises core information metadata and extend information metadata, described core information metadata is for being used for describing the characteristic information of this object self, the information of described extend information metadata for being associated with this object.
11. system as claimed in claim 10 is characterized in that, the characteristic information of described object self one of comprises in following information at least:
Positional information, perception information and composition information.
12. system as claimed in claim 10 is characterized in that, the information that described object is associated one of comprises in following information at least:
The extend information that the production process relevant information of object, process of circulation relevant information, business are used.
13. system as claimed in claim 10 is characterized in that, described object information description document is the expandable mark language XML file.
14. a method of inquiring about object information in Internet of Things is characterized in that, comprises the steps:
Read the label of the query object of wanting, gather corresponding coded message;
Find the core information file of corresponding former object according to described coded message;
Resolve described core information file, and preserve the result of resolving;
The result of described parsing is issued the simple object access protocol engine, and the SOAP engine passes to result after treatment client and shows, result comprises that object information describes document.
15. method as claimed in claim 14 is characterized in that, described core information file is the expandable mark language XML file.
16. method as claimed in claim 14 is characterized in that,
Described coded message is electric product coding.
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