CN104468715B - A kind of manufacturing industry Internet of things node collaboration storage method - Google Patents
A kind of manufacturing industry Internet of things node collaboration storage method Download PDFInfo
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- CN104468715B CN104468715B CN201410610047.XA CN201410610047A CN104468715B CN 104468715 B CN104468715 B CN 104468715B CN 201410610047 A CN201410610047 A CN 201410610047A CN 104468715 B CN104468715 B CN 104468715B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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Abstract
The present invention relates to manufacturing industry Internet of Things field, and storage method is cooperateed with more particularly, to a kind of manufacturing industry Internet of things node.It includes：S1. in Discrete Manufacturing Process sensing node resource and ability, classify to node according to the computing capability, communication capacity and storage capacity of node, divide sensing region；S2. node collaboration storage and computing mechanism are established based on sensing region；S3. the node collaboration storage based on foundation and computing mechanism, information service is obtained by real-time query and information published method.The present invention provides information service using node collaboration storage and computing mechanism in the region after division, can effectively improve the timeliness of data store in manufacturing industry Internet of Things reliability and perception by the division of classification and region to node.
Description
Technical field
The present invention relates to manufacturing industry Internet of Things field, cooperate with and store more particularly, to a kind of manufacturing industry Internet of things node
Method.
Background technology
Technology of Internet of things is the key technology built " wisdom enterprise ", develop " wisdom industry ".With Internet of Things correlation branch
The continuous maturation of technology is held, manufacturing industry has become its important developing direction.Manufacturing industry Internet of Things technology is by network technology, embedding
Enter the electronic information technologies such as formula technology, RFID, sensor and actuator and manufacturing technology blends, builds modern manufacturing industry Internet of Things
Network is basic development service platform and application system, reality with middleware, magnanimity information fusion treatment and system integration technology etc.
The full-range data of manufacture for now covering the links such as product design, manufacture and service reliably perceive, real-time Transmission, general fit calculation,
It is precisely controlled and trusted service, raising product technological additional-value, the management and control ability of enhancing manufacture and service process expedites the emergence of new show
For manufacturing mode, manufacture system is pushed to develop to informationization, intelligence, lean, greenization direction.
Strong electromagnetic, metal medium, multi-obstacle avoidance, high temperature, high humidity, vibrations, movement etc. in complex industrial manufacturing environment
Factor and perceptive object is complicated, the quick dynamics dramatic performance such as flowing of production environment dynamic change, manufacturing recourses so that work
Industry wireless network is faced with data perception and transmission reliability challenge simultaneously.The a large amount of isomeries of industry spot and ability height are unbalanced
Node acquisition data cleaned, recombinated before application, fusion reasoning, it is also necessary to be stored in manufacturing industry Internet of Things
In, storage method needs to consider the requirements such as reliability, the validity of memory space and the timeliness of perception of data storage.
Invention content
The present invention is at least one defect (deficiency) overcome described in the above-mentioned prior art, provides a kind of manufacturing industry Internet of Things
Node cooperates with storage method, to improve the timeliness of the reliability and perception of the storage of manufacturing industry Internet of Things perception data.
In order to solve the above technical problems, technical scheme is as follows：
A kind of manufacturing industry Internet of things node collaboration storage method, including：
S1. in Discrete Manufacturing Process sensing node resource and ability, according to the computing capability of node, communication capacity and deposit
Energy storage power classifies to node, divides sensing region；
S2. node collaboration storage and computing mechanism are established based on sensing region；
S3. the node collaboration storage based on foundation and computing mechanism, letter is obtained by real-time query and information published method
Breath service.
In said program, classification tool is carried out to node according to the computing capability of node, communication capacity and storage capacity in S1
Body is that the node in environment with communication capacity according to computing capability, storage capacity and its is divided into simple node set
With memory node set：
In simple node set, S={ S1, S2.....Sn }, Si are simple nodes, complete basic perception and communication
Function；
In memory node set：D={ D1, D2...Di...Dn }, Di are memory nodes, and memory node has semantic place
Reason, store function, and support communication, and have mobility；
Wherein, to arbitrary si ∈ S, there are neighbor node setIt is corresponding with si, the member in V (di)
Element changes with the movement dynamically of memory node.
In said program, the division of sensing region is divided according to community structure in S1, and the community structure is base
It is mutually related what node was constituted in common application target or perceptual interest.
In said program, it is specially with computing mechanism based on the node collaboration storage that sensing region is established in S2：
Memory node is dynamically distributed according to the resource status of regional nodes in each sensing region, wherein in each region
Simple node selection region in the maximum memory node of availability as the memory node of its own.
In said program, the storage availability of memory node is：As=(S × Ks+E × Ke+C × Kc)/(Ks+Ke+Kc),
Wherein S is the ratio of node current residual storage space and maximum free memory, and E is node current remaining and maximum
The ratio of utilisable energy, C are the ratio of the available communication capacity of node and maximum available communication ability, and Ks, Ke, Kc are respectively to deposit
Storage, energy, communication capacity weight parameter, the availability of the smaller then memory nodes of As is lower.
In said program, information service is using two-stage perception information service offer mechanism in S3, specially：
Level-one perception data service for providing real-time query；
For providing the two level perception data service based on publication and subscribing mechanism.
In said program, memory node includes mobile node and static node, be stored in static node perception information or
Person's event is used for inquiry.
In said program, the perception information or event are stored in RDF document forms in static node.
In said program, the method further includes：Using the chance memory mechanism based on community structure, by simple node
Perception information copies in manufacturing environment in memory node available, with certain calculating, storage and communication capacity.
In said program, when the perception information update in simple node, corresponding copy to is stored in memory node
Perception information corresponds to update；
When network connection is normal, data forwarding to the database server in memory node carries out centrally stored.
Compared with prior art, the advantageous effect of technical solution of the present invention is：
(1) present invention is deposited in the region after division using node collaboration by the division of classification and region to node
Storage and computing mechanism provide information service, can effectively improve reliability that data in manufacturing industry Internet of Things store and perception when
Effect property.
(2) classify to node in the present invention, this is classified based on the communication capacity, computing capability and storage of each node
Ability is divided into simple node and memory node, effectively improves the validity of node storage space.
(3) in the present invention, node memory mechanism considers residual memory space, available communication capacity and energy residual energy
Amount state, simple node always select availability maximum storage node as the memory node of oneself, reduce perception information storage
The uncertainty of position improves the reliability of perception.
(4) in the prior art, the loss that insecure partly cause is perception data or information is perceived, net in manufacturing environment
The unstable and uncertain of network transmission is that data or information is caused to lose main cause.Information is coped in conventional network communications to lose
The owner of lost property will use retransmission mechanism, and retransmission mechanism is operated very well in the case where network is always maintained at connection, but manufacturing industry object
The characteristics of networking shows as intermittent connection in many cases, retransmission mechanism efficiency under the Network status of intermittent connection is low
Under.Therefore the present invention uses the chance memory mechanism based on community structure, is turned by the duplication of perception information, update and delay
Hair realizes perception information redundancy and distributed storage, and improves the validity of the timeliness and storage of perception information.
Description of the drawings
Fig. 1 is the hardware architecture diagram of manufacturing industry Internet of Things.
Fig. 2 is interior joint hierarchical chart of the present invention.
Fig. 3 is the model schematic of memory node of the present invention.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to more preferably illustrate that the present embodiment, the certain components of attached drawing have omission, zoom in or out, actual product is not represented
Size；
To those skilled in the art, it is to be appreciated that certain known features and its explanation, which may be omitted, in attached drawing
's.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indicating or implies relative importance or imply the quantity of indicated technical characteristic." first " that limits as a result, "
One or more this feature can be expressed or be implicitly included to two " feature.In the description of the present invention, unless otherwise saying
Bright, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connects, and can also be electrical connection；It can be directly connected, can also be to be indirectly connected with by intermediary, it may be said that two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
The following further describes the technical solution of the present invention with reference to the accompanying drawings and examples.
Embodiment 1
It is the hardware architecture diagram of a manufacturing industry Internet of Things as shown in Figure 1.A kind of manufacturing industry Internet of things node association of the present invention
The Organization Chart can be based on storage method specific embodiment to realize.Specifically, a kind of manufacturing industry Internet of Things of this specific embodiment
Node cooperates with storage method, including：
S101. in Discrete Manufacturing Process sensing node resource and ability, according to the computing capability of node, communication capacity and
Storage capacity classifies to node, divides sensing region；
S102. node collaboration storage and computing mechanism are established based on sensing region；
S103. the node collaboration storage based on foundation and computing mechanism, are obtained by real-time query and information published method
Information service.
Wherein, the node can be the soft and hardware entity with specific sensing capability, and node can be sensor；Place
Manage device；Include the module with computing capability, calculates herein and refer to any type of data or information processing；Or storage
Any memory module that can store perception information in device, including node；Actuator (actor), including control unit and electromechanics
Module；Software module, including program, model and knowledge；The mixture of the above resource, such as robot.
In the present invention, the ability of node is defined as 5 kinds of basic capacities：Sensing capability, storage capacity, is led at computing capability
Letter ability and executive capability, any one node have this 5 kinds of sensing capabilities or its subset, and executive capability is by physical world
The mode of energy is transmitted to change physical environment.
In specific implementation process, in S101 according to the computing capability of node, communication capacity and storage capacity to node into
Row classification is specifically, the node in environment with communication capacity according to computing capability, storage capacity and its is divided into simple
Node set and memory node set：
In simple node set, S={ S1, S2.....Sn }, Si are simple nodes, complete basic perception and communication
Function；
In memory node set：D={ D1, D2...Di...Dn }, Di are memory nodes, and memory node has semantic place
Reason, store function, and support communication, and have mobility；
Wherein, to arbitrary si ∈ S, there are neighbor node setIt is corresponding with si, the member in V (di)
Element changes with the movement dynamically of memory node.
Specifically as shown in Fig. 2, there is simple node basic perception and ability, typically no storage capacity to have one
Fixed mobility, perception information or event are stored in memory node.Memory node is by distributed storage information and provides
Real-time query service.
In specific implementation process, the division of sensing region is divided according to community structure in S101, the corporations
Structure is to be mutually related what node was constituted based on common application target or perceptual interest.Under normal conditions, corporations
Structure (Community structure) refers to being completely embedded and being connect with network other parts more loose inside its in network
Scattered minor structure.It is interrelated (with common can to represent part, supplier and inventory etc. for corporations in manufacturing industry internet of things
Interest) the group that constitutes of entity, can also be sensor and actuator in control loop (there is common application target) structure
At group etc..Based on common application target or perceptual interest, the node that is mutually related constitutes corporations.The present invention may be used
Level community structure finds that method can be found that different levels, multiple dimensioned lower community structure, is then based on community structure to feeling
Know that region is divided.
In specific implementation process, is stored based on the node collaboration that sensing region is established in S102 and computing mechanism is specific
For：
Memory node is dynamically distributed according to the resource status of regional nodes in each sensing region, wherein in each region
Simple node selection region in the maximum memory node of availability as the memory node of its own.
Wherein, the storage availability of memory node can calculate in the following way：As=(S × Ks+E × Ke+C ×
Kc)/(Ks+Ke+Kc), wherein S are the ratio of node current residual storage space and maximum free memory, and E works as node
The ratio of preceding dump energy and maximum available energy, C are the ratio of the available communication capacity of node and maximum available communication ability,
Ks, Ke, Kc be respectively storage, energy, communication capacity weight parameter, the availability of the smaller then memory nodes of As is lower.
Based on above-mentioned mechanism, the simple node in a region always selects the maximum memory node of availability as oneself
Memory node, it is primary store event occur or due to community structure variation caused by node motion after, system will be counted again
Calculate the availability of memory node in corporations.
Perceive the loss that insecure partly cause is perception data or information, network transmission is unstable in manufacturing environment
It is that data or information is caused to lose main cause with uncertainty.Information is coped in conventional network communications to lose mainly using re-transmission
Mechanism, retransmission mechanism are operated very well in the case where network is always maintained at connection, but manufacture Internet of Things in many cases
The characteristics of showing as intermittent connection, retransmission mechanism inefficiency under the Network status of intermittent connection.Therefore, root of the present invention
The characteristics of according to manufacturing industry Internet of Things, also uses the chance memory mechanism based on community structure, the perception information of simple node is answered
Make in manufacturing environment in memory node available, with certain calculating, storage and communication capacity, carry out semantic processes,
Real-time query service and delay transmission are provided, reliability is reached by the method for data redundancy.Such as by the letter as simple node
Data and its metadata that single-sensor is generated according to certain sample frequency (time that data generate, place, reliability index)
Copy to (the chance storage that mobile node provides) available in environment, the node with certain calculating storage and communication capacity
In.The mechanism using between simple node and the correspondence and memory node of memory node the number of reproduction replica it is various
Property, it reduces the uncertainty of perception information storage location, improve the reliability of perception.
In specific implementation process, when the perception information update in simple node, corresponding copy to is stored in storage section
Perception information in point corresponds to update；
When network connection is normal, data forwarding to the database server in memory node carries out centrally stored, realization
The delay forwarding capability of data.
As shown in figure 3, for the model structure of memory node, general memory node is utilized to be locally stored into row information and be deposited
Storage provides inquiry service, while being also equipped with the function that the information of storage is updated and is forwarded, and serves node collaboration storage
And computing mechanism.
In specific implementation process, information service is using two-stage perception information service offer mechanism in S103, specially：
Level-one perception data service for providing real-time query；Wherein memory node includes mobile node and static section
Point, static node have stable network connection, perception information or event finally to may be copied in static node, and perception information is quiet
The SPARQL real-time onlines inquiry of standard can be used at RDF files by semantic processes at state node.
For providing the two level perception data service based on publication and subscribing mechanism.In specific implementation process, pass through theme
Mode is classified and is filtered to perception information and event, and sensing node carries out theme mark to perception data, and theme is according to system
It makes domain body level and carries out tissue, such as " object ", " stream ", " procedure segment ", user can use " theme " to express them
To perceiving the interest of event.
In said program,
In said program, the perception information or event are stored in RDF document forms in static node.
In said program, in said program,
The same or similar label correspond to the same or similar components；
Position relationship described in attached drawing is used to only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (3)
1. a kind of manufacturing industry Internet of things node cooperates with storage method, which is characterized in that including：
S1. in Discrete Manufacturing Process sensing node resource and ability, according to the computing capability of node, communication capacity and storage energy
Power classifies to node, divides sensing region；
S2. node collaboration storage and computing mechanism are established based on sensing region；
S3. the node collaboration storage based on foundation and computing mechanism obtain information clothes by real-time query and information published method
Business；
Classified to node specifically, by having in environment according to the computing capability of node, communication capacity and storage capacity in S1
There is the node of communication capacity to be divided into simple node set and memory node set according to computing capability, storage capacity and its function：
In simple node set, S={ S1, S2 ... ..Sn }, Si is simple node, completes basic perception and communication function；
In memory node set：D={ D1, D2 ... Di...Dn }, Di are memory nodes, and memory node has semantic processes, deposits
Function is stored up, and supports communication, and has mobility；
Wherein, to arbitrary si ∈ S, there are neighbor node set V (di)；It is corresponding with si, the element in V (di)
Change with the movement dynamically of memory node；
The division of sensing region is divided according to community structure in S1, and the community structure is based on common application target
Or perceptual interest and be mutually related what node was constituted；
It is specially with computing mechanism based on the node collaboration storage that sensing region is established in S2：
In each sensing region memory node, the wherein letter in each region are dynamically distributed according to the resource status of regional nodes
The maximum memory node of availability is as the memory node of its own in single node selection region；
The storage availability of memory node is：As=(S × Ks+E × Ke+C × Kc)/(Ks+Ke+Kc), wherein S are that node is current
The ratio of residual memory space and maximum free memory, E are the ratio of node current remaining and maximum available energy,
C is the ratio of the available communication capacity of node and maximum available communication ability, and Ks, Ke, Kc are respectively storage, energy, communication energy
The availability of the weight parameter of power, the smaller then memory nodes of As is lower；
Information service provides mechanism using two-stage perception information service in S3, specially：
Level-one perception data service for providing real-time query；
For providing the two level perception data service based on publication and subscribing mechanism；
Memory node includes mobile node and static node, and perception information or event are stored in static node to be made for inquiry
With；
The perception information or event are stored in RDF document forms in static node.
2. manufacturing industry Internet of things node according to claim 1 cooperates with storage method, which is characterized in that the method is also wrapped
It includes：Using the chance memory mechanism based on community structure, by the perception information of simple node copy in manufacturing environment it is available,
In memory node with certain calculating, storage and communication capacity.
3. manufacturing industry Internet of things node according to claim 2 cooperates with storage method, which is characterized in that when in simple node
Perception information update when, the corresponding perception information being stored in memory node that copies to corresponds to update；
When network connection is normal, data forwarding to the database server in memory node carries out centrally stored.
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| CN106648899A (en) * | 2016-12-28 | 2017-05-10 | 深圳Tcl数字技术有限公司 | Cloud computing storage method and device based on surplus storage space of terminal device |
| CN111310284B (en) * | 2020-01-20 | 2022-06-07 | 西安交通大学 | Complex mechanical product assembly modeling method based on complex network |
| CN115344761A (en) * | 2022-07-29 | 2022-11-15 | 江苏华存电子科技有限公司 | Memory occupation optimization method and system for nodes of Internet of things |
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