CN104144215A - Method for building Internet-of-Things ubiquitous device resource model - Google Patents
Method for building Internet-of-Things ubiquitous device resource model Download PDFInfo
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- CN104144215A CN104144215A CN201410360027.1A CN201410360027A CN104144215A CN 104144215 A CN104144215 A CN 104144215A CN 201410360027 A CN201410360027 A CN 201410360027A CN 104144215 A CN104144215 A CN 104144215A
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Abstract
The invention discloses a method for building an Internet-of-Things ubiquitous device resource model. The system structure of the Internet of Things is divided into five layers which sequentially include the sensing layer, the network layer, the resource layer, the platform layer and the application layer from bottom to top. According to the method, the Android is combined with indoor environment monitoring, and the application range is expanded; due to the introduction of the resource layer, different function units of heterogeneous devices of the Internet of Things can be packaged to be resources with good definition interfaces and good definition standards and integrated in a loose coupling mode, so that the aims of reusing the resources and improving interoperation between heterogeneous assemblies can be effectively achieved. Various industrial terminals and various personal terminals can be integrated through unified construction of the platform layer, terminal-to-terminal service supporting is provided through unified and standard access management, and therefore scale development is achieved.
Description
Technical field
The invention belongs to technology of Internet of things field, relate to the construction method of the ubiquitous device resource model of a kind of Internet of Things.
Background technology
The design philosophy of existing network system is a kind of main services pattern of a class network support, is not suitable with multiple network and supports polytype service, cannot meet people for the demand of service.In conventional architectures, application developer is developed stationary applications must understand corresponding device type and data format thereof before Application and Development after, and the variation along with demand, must be again according to adding of newtype equipment of a large amount of modification application codes, therefore the flexibility of its exploitation is poor, autgmentability is limited, and code reuse is lower.
Summary of the invention
The object of the invention is to overcome the defect that above-mentioned technology exists, the construction method of the ubiquitous device resource model of a kind of Internet of Things is provided, by the introducing of resource layer, the different function units of Internet of Things isomery equipment can be encapsulated as to the resource with good defining interface and standard, and combine in the mode of loose coupling, can effectively solve resource reuse like this, strengthen the Interoperability between isomery assembly.And the construction of unified podium level can be integrated miscellaneous sector terminal, personal terminal, by the access-in management of unification, standard, provide service support end to end, thereby realize large-scale development.Its concrete technical scheme is:
A construction method for the ubiquitous device resource model of Internet of Things, comprises the following steps:
Step 1: after layer device power held in sense, first find bag to gateway transmitting apparatus, after receiving the ACK message that gateway is replied, send the packet of describing self-ability to gateway order.
Step 2: obtain describing after the packet of capacity of equipment resolution data bag.Obtain capacity of equipment, different abilities that equipment is had are abstract is different resources, sets up resource model.
Step 3: describe URI (Uniform Resource Identifier) information that obtains access means abstract resource bag from capacity of equipment.
Step 4: describe bag and obtain action description information corresponding to the said equipment abstract resource from capacity of equipment.
Step 5: describe bag and obtain the corresponding attribute information of the said equipment abstract resource from capacity of equipment.
Step 6: the equipment isomerism of shielding bottom, the resource model description document of generation XML form, the unified form with resource offers platform.
Preferably, describe in the resource model of resource, need obtain according to determinant attribute the resource example information of resource.Resource example information is used for distinguishing the resource of the same name of different attribute.
Preferably, for the different resource example of same resource, avoid being repeated in this description of other identical information, each resource is had to the descriptor of resource example.
Preferably, if certain attribute of resource is supported Event Function, when there being upper layer application to carry out event definition to this attribute of resource, need obtain according to event definition information the event instance descriptor of resource.
Compared with prior art, beneficial effect of the present invention is:
Compare with three layers of traditional Internet of Things architectural framework, by the introducing of resource layer, the different function units of Internet of Things isomery equipment can be encapsulated as to the resource with good defining interface and standard, and combine in the mode of loose coupling, can effectively solve resource reuse like this, strengthen the Interoperability between isomery assembly.And the construction of unified podium level can be integrated miscellaneous sector terminal, personal terminal, by the access-in management of unification, standard, provide service support end to end, thereby realize large-scale development.In resource model, resource example carries out instantiation to resources-type, one resources-type may comprise one or more resource examples, therefore by the customized label <instanceList> identifying resource example list of XML, in two pairs of labels that wherein redundant information of Multi-instance (comprising the common description of action and attribute) is introduced in the above, describe, and between each example of being divided by <instance> label, for attribute or the attribute family distinguished mutually, by one or more groups <StateVariable>, described, this describing mode has guaranteed the complete of resource model to present.
Accompanying drawing explanation
Fig. 1 is the structure chart of the Internet of Things architectural framework model of resourceoriented;
Fig. 2 is the flow chart of the construction method of the ubiquitous device resource model of Internet of Things.
Fig. 3 is that the resource model of XML form is described schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in more detail.
The system component that forms this architectural framework, take platform as boundary, and structurally framework is divided into two parts.
Fig. 1 is the part of Internet of Things resource fork support system, has comprised equipment, device cluster and gateway.Be application data system above, comprised and supported the web server group of application and the Resource Server group of locating resource, its software architecture is used for obtaining the content of platform resource, and Resource Supply mode.Centre is the functions such as business platform, the authentication of integrated management Internet resources, identification, control, management.
1, equipment, device cluster
The Data Source of Internet of Things is magnanimity, and geographical position disperses, and mode is varied, and based on this demand, device node must distribute, cluster.Internet of things equipment is to have certain ability, and the equipment that comprises certain resource comprises sensor node, RFID or smart machine.Device cluster is in certain geographical position, is combined into certain device populations by ability can be provided.Equipment and device cluster are to provide the original material of data mining, are also the valid data sources of system.
2, gateway
Because needs are tackled miscellaneous hardware device, their data transfer mode is had nothing in common with each other, and will be very complicated in the management of equipment and device cluster.Gateway device is the basis of supporting whole system operation, and the nucleus module of resource layer is realized thereon.First it is an embedded device that possesses certain computing capability, born the identification of system senses layer, simultaneously, all demands of network layer access, need identification and the unified not data format of homology, data access mode, data transfer mode, carry out resource format, the descriptor of resource is provided, resource transfer interface, carry out some special strategy, and possesses certain Data Representation ability etc., therefore for the very complicated gateway system of partition functionality, by function modoularization, by resource layer and network layer, be responsible for separately Communications Processor Module and data processing module, reduce the coupling of function.Chapters and sections after the design of its inside function and implementation reference.
3, business platform
Platform, as the interface of lower floor's equipment and upper layer application, provides general function, and such as data access, service provides etc.And for the demand first of platform be by resource extensive be concrete operation flow and data message.The second, need to consider fail safe and the private ownership deal with data of resource, its subordinate's of institute of store and management resource.It is the function basic module of business, and good operation platform can provide more specialized data, services for customer group.
4, Resource Server
Resource Server, provides the system of many request resource location exactly to whole architecture, its main application-oriented group provides service.When a plurality of application request same asset, after Resource Server analytical information, only to gateway, send first resource solicited message, to reduce Internet traffic, avoid causing unnecessary waste.
It is considered herein that, internet of things service numerous and complicated, each business defines a set of operational process if, obviously be loaded down with trivial details, unscientific, therefore, the fundamental type of Internet of Things network terminal ability can be carried out abstractly, and adopt suitable rule, constraints that these fundamental types are combined and reused, to generate neatly Internet of Things applied business miscellaneous.
From macroscopic perspective, regard the Internet of Things network terminal as resource, and adopt the thought of introducing resource layer hierarchical structure to carry out functional hierarchy division to Internet of Things architectural framework, holder networking service platform is to the identification of Internet of Things resource, management and control.Do like this technological means that the developer who is also beneficial to Internet of Things overall architecture is absorbed in certain level, by the interactive interfacing between level, thereby reduce complexity and the coupling of Internet of Things exploitation.
The plug and play mechanism of equipment refers in network that the function of oneself and the service providing can be provided for various programs and equipment, and a kind of mechanism of resource requirement can be found and access later in authentication to applied business automatically.
The designing requirement of resource layer function is:
1, guarantee that user can arrive required resource by some given attribute information searching of service;
2, allow user the access mode based on service to carry out request resource;
3, supporting platform Gains resources information under the condition that whole resource is known nothing;
4, realizing a kind of mechanism resource that it provides when new node enters Internet of Things network can be found;
5, realize a kind of mechanism and when node failure, can judge that service can not be used;
6, guarantee the uniqueness of resource;
7, the buffer memory of gateway support to resource discovering information, creates and defines new resources fast, to improve the speed of plug and play.
Resource model has been unified Internet of Things Internet resources, and resource description is contained resource external relations, internal structure and three levels of feature own.How, when to describe, which specific information who collected, and why also has the form of these information.
As the extend markup language (XML) on data information exchange and network calculations basis, it has become descriptive language general on network.By thering is the XML of platform-neutral, carry out expressing information, can cross over platform, equipment transfering data
[36].Meanwhile, XML tool has the following advantages:
1, simple exchanges data.In XML, can use configuration mode save data and the mark of text formatting.Can use fixing xml editor or other software programming XML document, there is no enforceable requirement, when needs check mistake, can put into W3C website and directly check and revise document simultaneously.Meanwhile, when the data volume of needs description is larger, use XML more efficient.
2, can customed label.In XML, can use the markup language oneself defining, this reflects the function that XML is powerful, moreover, can also merge mutually with the XML tag that other people create, and expands, adds use, thereby reach multiplexing object.
3, self-description data.XML can write with pure ASCII, also can write with several forms that other define, and therefore, on its basic pattern regulation, the autgmentability of data format is very flexible.ASCII text is when losing some words or considerable byte, and remaining data still can read.Therefore, XML language has self descriptiveness.
4, structurized data.The user of XML not only can specific data content, can also be the structure of the flexible design of the data of appointment, simultaneously also can be by synthetic other the element of different element set.This point is very important for the magnitude data of extension process complexity.
Therefore, select the detailed content of XML language description resources in network, make its by resource management platform identification, resolve, and consult for user.
The resource model designing in the present invention, is used and take XML as basic Network Description Language, describes the ubiquitous resource of Internet of Things network, and it describes label and form is defined as follows:
In resource description, each field meaning and value are as follows.
Resources-type S1, S2, S3 that three equipment carries are example, and Fig. 3 shows the abstract fields example of the network resource information of XML language description.
As can be seen, label shows the Resources list of the network equipment that current gateway is managed, marked network resource queue to <resourceList>.In the network of managing due to a gateway, have a plurality of transducers or RFID equipment, so gateway device need to manage a plurality of resource informations, it is S1 that the list in this example comprises three resources, S2, S3.
Take resources-type S2 as example, a plurality of equipment can be supported the ability of this resource, now, the information that is repeated in this description that there will be same resource in the information receiving at gateway, but see to be only a kind of ability from the whole network angle, therefore need to be by after abstract integration, these duplicate messages are informed to platform with a kind of form of resource, label is described separately this resource to <resource>, only needs to record the corresponding relation of descriptor and a plurality of equipment during gateway processes.In the description essential information of each resource, its access interface is used URL tag identifier and the form of naming rule is:
/ IP/resource/ resource name/Instance Name/action name/property key-it is right to be worth, specifically as shown in Figure 3.
The action of every kind of resource and attribute description list by the subtab of <resource> to <actionList> and <resourceStateTable> mark, identical with the identification means of resource tag, in order to process the mapping relations of one-to-many, use <action> and <Variable> label to describe separately each action and the attribute information of described resource.
In resource model, resource example carries out instantiation to resources-type, one resources-type may comprise one or more resource examples, therefore by the customized label <instanceList> identifying resource example list of XML, in two pairs of labels that wherein redundant information of Multi-instance (comprising the common description of action and attribute) is introduced in the above, describe, and between each example of being divided by <instance> label, for attribute or the attribute family distinguished mutually, by one or more groups <StateVariable>, described, this describing mode has guaranteed the complete of resource model to present.
The above; it is only preferably embodiment of the present invention; protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen within the scope of protection of the present invention.
Claims (1)
1. a construction method for the ubiquitous device resource model of Internet of Things, is characterized in that,
Step 1: after layer device power held in sense, first find bag to gateway transmitting apparatus, after receiving the ACK message that gateway is replied, send the packet of describing self-ability to gateway order;
Step 2: obtain describing after the packet of capacity of equipment resolution data bag; Obtain capacity of equipment, different abilities that equipment is had are abstract is different resources, sets up resource model;
Step 3: describe URI (Uniform Resource Identifier) information that obtains access means abstract resource bag from capacity of equipment;
Step 4: describe bag and obtain action description information corresponding to the said equipment abstract resource from capacity of equipment;
Step 5: describe bag and obtain the corresponding attribute information of the said equipment abstract resource from capacity of equipment;
Step 6: the equipment isomerism of shielding bottom, the resource model description document of generation XML form, the unified form with resource offers platform.
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| CN108628876A (en) * | 2017-03-17 | 2018-10-09 | 中国科学院信息工程研究所 | A kind of automation method for extracting fingerprint feature based on clustering |
| CN110309505A (en) * | 2019-05-27 | 2019-10-08 | 重庆高开清芯科技产业发展有限公司 | A kind of data format self-analytic data method of word-based insertion semantic analysis |
| CN110505266A (en) * | 2018-05-16 | 2019-11-26 | 西门子股份公司 | Internet of things structure with 3D adaptation matrix |
| CN112286726A (en) * | 2020-10-30 | 2021-01-29 | 无锡新思联信息技术有限公司 | CPS-based design method for data and capability model of Internet of things equipment |
| CN112671837A (en) * | 2020-12-09 | 2021-04-16 | 同济大学 | Resource identification method based on Internet of things |
| CN113162991A (en) * | 2021-04-01 | 2021-07-23 | 飞昂创新科技南通有限公司 | Multilayer network structure applied to Von Neumann expansion structure in Internet of things |
| CN113157267A (en) * | 2021-04-24 | 2021-07-23 | 中国海洋大学 | Open type resource management model and construction method thereof |
| CN114500316A (en) * | 2022-01-30 | 2022-05-13 | 绿城科技产业服务集团有限公司 | Method and system for inspecting equipment of Internet of things |
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| CN110505266B (en) * | 2018-05-16 | 2022-12-06 | 西门子股份公司 | System and method for an internet of things architecture with a 3D adaptation matrix |
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| CN113157267A (en) * | 2021-04-24 | 2021-07-23 | 中国海洋大学 | Open type resource management model and construction method thereof |
| CN114500316A (en) * | 2022-01-30 | 2022-05-13 | 绿城科技产业服务集团有限公司 | Method and system for inspecting equipment of Internet of things |
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