CN109660408A - Multi-level distributed Internet of things data source service registration and access mechanism - Google Patents
Multi-level distributed Internet of things data source service registration and access mechanism Download PDFInfo
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- CN109660408A CN109660408A CN201910080224.0A CN201910080224A CN109660408A CN 109660408 A CN109660408 A CN 109660408A CN 201910080224 A CN201910080224 A CN 201910080224A CN 109660408 A CN109660408 A CN 109660408A
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- H—ELECTRICITY
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention relates to a multi-level Internet of things data source service registration and access mechanism developed based on industrial process measurement and control network application, wherein the whole network adopts a two-layer network topology structure combining star and Mesh, a multi-level network system management mode combining centralized and distributed modes, and a special data source service registration process based on a node backup unit avoids the phenomenon that each node is busy in data transmission and cannot be connected to the grid; when accessing a data source service, a data source uplink and downlink mode based on information frame classes is adopted, primary routes are uniformly allocated, and then a cluster can be flexibly connected to the grid only by one primary route.
Description
Technical field
The present invention is based on the wireless technology mode of intelligence transmission, a kind of multi-layer object developed by industrial process observing and controlling application
The service registration of networking data source and access mechanism belong to wireless technology in the application of industrial automation.
Background technique
With the development of information technology, industrial field device has been achieved with gradually digitlization, networking and intelligence, and by
The nerve center that these intelligent equipments constitute control system is to control net.Control network forward direction industry wireless network hair at present
Exhibition, becomes the new research hotspot in industrial control automation field, and obtained preliminary achievement, and has self-organizing, autonomy
The industry wireless network of more intelligent Mesh network routing mechanism, can not really adapt to although can adapt to the dynamic change of network
China industrializes national conditions, and the initial achievements of acquirement are only applicable to extensive plant centralized management, and most cases are wired
Connection, without really solving modernization industry demand, so guaranteeing that network is reliable to better adapt to complex industrial environment
Property, multi-layer distributed data Login just needs the wireless networking mechanism of complete set with access, high with its main feature
Reliability, high real-time and low power consumption and low cost, convenient for safeguarding and deployment etc..Traditional industry TT&C system use cost is high, no
Easy to maintain, especially wired process control is want to carry out individual mechanical or position node adjustings from scene once completing equipment
Maintenance, which is monitored, to be even more not easy.And another aspect traditional wireless sensor networks are supplied since hardware resource is limited based on battery
For the terminal node of electricity since job specification can not continue a journey for a long time, working environment is more severe, resists poor wait of external attack and lacks
Point, the new data source registration and access mechanism suitable for multi-layer distribution Internet of Things of the one kind proposed thus, can be well
It solves the above problems, and can add new key rule according to data confidentiality degree, can also prevent secret number to a greater extent
According to being stolen, exclude malicious node and explain the puzzle in network data or to send false data to nodes, in addition this mechanism is also
Improvement on the basis of existing industry wireless network effectively makes up traditional access channel fashion competition-based, so improving
Data reliability, real-time, establishing a set of real data source registration for adapting to industrial field device just seems outstanding with access mechanism
It is important.
Summary of the invention
The two-tier network topological structure that the present invention is combined using star-like and Mesh, the multi-layer that centralization is combined with distribution
Network system management mode has good improvement to partial node observing and controlling in the control of traditional industry equipment, and is based on radio frequency ring
Border recognizes and the high reliable communication technology of adaptive frequency hopping, the network layer note including special physical layer, frame relay, network layer
Volume and access mechanism, ensure that device node data reliable transmission in harsh environment, and it is existing sufficiently to adapt to wireless industrial Internet of Things
Field device control and maintenance.
The present invention is to adapt to wireless industrial application high reliability, high real-time and low-power consumption deployment convenient for safeguarding etc., will
Traditional master control formula, which is arranged net, is distributed to each control unit of equipment, from scene carry out individual mechanical or position nodes carry out maintenance and
Detection.
The data encryption for the high dynamic classification being especially added to adapt to wireless industrial application, new multi-layer are distributed
Data source access service registration access mechanism carries out data confidentiality block, can be even secondary in master control layer, primary routing layer respectively
Grade routing carries out the data encryption assuring data security of piecemeal:
1. the two-tier network topological structure combined using star-like and MESH, reply terminal room information transmitting, centralization with point
The multi-layer network system management mode that cloth combines effectively solves the malfunction that the multi-level information reporting of industry generates.
2. from first/secondary routing cipher mode, field device carries out data frame and reports, from first/secondary routing according to data
Secret grade, (storing key database in route stand-by in advance), manager are added with according to field data importance, transmission
The data frame of key hierarchy, and receive to have the data ACK frame of key, control layer carries out key database decryption, effectively
Guarantee data security transmission.
3. flexible cipher mode, from the data encryption mode of master control, master control sending device action command, artificial selection adds
Close mode and grade；Information encryption can also be successively carried out, is ensured information security.
4. special facility registration process and data source access mechanism, avoid each node when conventional equipment normal communication
Be busy with normal data communication and caused by channel congestion, guarantee industrial equipment node quickly, reliable registration, also avoid equipment simultaneously
Due to restarting bring maloperation.
5. differentiating the concentrating type data source access mechanism of frame based on node, special data frame structure mode guarantees scene
Relevant device status information is obtained when maintenance recently.
6. the Radio Link that special node standby layer carries out calculates, algorithm determines information path and the hand that transmission is taken
Section, avoids using traditional mode propagation protocol control message that floods, to improve the survivability and reliability of network.
7. the link evaluation system that the Channel Detection based on wireless MESH technology is established, the tool needed in conjunction with transmission control
Body communication equipment makes a system such as node transmitting power, transmission rate, coding mode to network channel variation intelligence in real time
Column control, realizes the optimal utilization of channel resource.
8. being based on industrial network actual environment, networking is carried out using distinctive narrow-band technologies, hence it is evident that improve to field device
Monitoring period, and all kinds of occasions are applicable in sufficiently with its strong anti-interference ability, it is not interfere with each other with other broadband devices.
Detailed description of the invention
Fig. 1 is novel available deploys to ensure effective monitoring and control of illegal activities on site or the multi-layer distributed network model of cluster of industry equipment management.
Fig. 2 is multistage node data source service registration flow chart.
Fig. 3 is the data frame format figure step by step that network data source access mechanism uses.
Fig. 4 is the possibility node-node transmission path profile calculated by route stand-by.
Specific embodiment
Present invention combination industrial network feature, optimizes traditional industry network foundation, is infused using unique data source
Volume scheme, when avoiding conventional equipment normal communication each node be busy with normal data communication and caused by channel congestion, guarantee work
Industry device node quickly, is reliably registered, and is also avoided equipment due to restarting bring maloperation simultaneously, is greatly enhanced number
According to reliability.
When device data Login, terminal device node carries out self-test first, forms nodal community frame, which includes equipment
ID, for carrying out the equipment message word of login network access, and the key hierarchy code (being contained in device backup unit) to be enabled,
The attribute frame is only used as global generally acknowledged message forwarding.
1. making up the short slab that edge device node can not touch, i.e., same node layer by Mesh networking between same layer equipment
Guarantee that each nodal community frame reliably reaches primary routing.
2. primary routing is counted, and forms Link Routing Table, all nodal informations are reported into gateway.
3. additional wireless modules (module that gateway after receiving a nodal community registered frame, is carried by gateway
Only carry out new node registration and the confirmation of node exception) networking through the directly progress destination node of path 4 confirms, and it is close to distribute enabling
Key grade.
4. after destination node receives the message authentication frame with key hierarchy, replying gateway passage path 5 and carrying out message
Confirmation is replied, and gateway carries out the operations such as upper-layer client end master control nodal information generation after receiving reply again.
The register method when avoiding conventional equipment normal communication each node be busy with normal data communication and caused by channel
Congestion guarantees that industrial equipment node quickly, is reliably registered, also avoids equipment due to restarting bring maloperation simultaneously
Using the concentrating type data source access mechanism for differentiating frame based on node when the network system carries out data source access, and
And the adhoc mode between same layer using Mesh effectively improves traditional single node access bring channel wastage, improving message can
By property.
1. master control sends the data with device id and secret grade N and controls message；Device id is also served as in mechanical floor
The differentiation frame of destination node information state is characterized, device node receives secret grade and just carries out effective device action and return
Device action state.
2. gateway layer carries out data level encryption and other compatible Internet of Things compatible protocols.
3. it will be connected directly to primary routing device nodal information while primary routing control bottom data frame and report,
Whether detection other equipment ID is primary routing direct-connected device at this time, if so, carrying out link calculation, selection by node standby layer
Best link carries out message upload；If not direct-connected device, then carry out Mesh networking in layer, search judges whether there is the section
Point does not carry out lower layer's routing then and turns message.
4. time grade routing belongs to the equipment bottom, general node booting completes registration and completes Mesh network from group, and
There can be node standby in gateway node, in cap rock routing first according to frame ID number, carry out equipment scanning, it is dynamic to issue corresponding device
Make information, then carries out path using the route backup table formed in register node and report；Only in access new equipment or reduction
Device node, route stand-by just can carry out rerouting planning by backing up to calculate.
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is according to multi-layer distribution Internet of Things real-world environment, new industry wireless network network model, between same layer
Wireless Mesh netword, multistage between using conventional wireless single node access, truly realize the self-configuring of wireless network end node
Managerial ability simplifies network operation, eliminates influence of traditional single node failure to whole network；It implements to include multistage number of nodes
It is accessed according to source service registration and network data source.
Fig. 2 describes the management and information collection that master control is responsible for all gateways, and all information orders are by master control primary web
It closes and issues；Primary gateway equipment constitutes the network system second layer, enjoys the authority at the highest level in addition to user right, third layer starts
It is networked by special routing connection equipment, Mesh networking can be carried out between same layer equipment；Progress equipment is routed by secondary later to enter
The work such as net coordination.
This method avoid node each when conventional equipment normal communication be busy with normal data communication and caused by channel congestion,
Guarantee that industrial equipment node quickly, is reliably registered, also avoids equipment due to restarting bring maloperation simultaneously.
Fig. 3 is that the network carries out data packet format step by step when data source access, using the concentrating type for differentiating frame based on node
Data source access mechanism, and the adhoc mode between same layer using Mesh effectively improves traditional single node access bring letter
Road waste, improves message reliability.
Fig. 4 describes same layer equipment room nodes's data reporting and route stand-by is needed to carry out live calculating, is sent and is grown according to data
Degree and periphery node channel state carry out routing track algorithm and calculate, and select Optimization route path, or carry out multi-hop by node
Forwarding, or carried out netting interior data forwarding by Mesh networking.
Mesh Routing Protocol controls the influence of local change in topology by gradient, and gradient is using all available paths as base
Plinth, free routing failure have no effect on whole robustness, so network overhead has also obtained effective control, avoid using traditional
The mode that floods propagation protocol control message, to improve the survivability and reliability of network.One weight of traditional networking technology
Wanting defect is the relationship isolated between network organization and physical layer, this necessarily leads to the low of network transmission efficiency.Wirelessly
The link evaluating system and combine transmission control that specific communication is needed to set that Mesh network technology is established based on Channel Detection
It is standby, a series of controls such as node transmitting power, transmission rate, coding mode are intelligently made according to the variation of real-time network channel
System, realizes the optimal utilization of channel resource, so that the optimal selection for routing provides more accurate foundation.
Claims (8)
1. the service registration of multilevel distributed internet of things data source is with access mechanism it is characterized in that the data source registration machine of multi-layer
System and reliable data source service access realize, merges the two-tier network topological structure that star-like and Mesh is combined, centralization with point
The multi-layer network system management mode that cloth combines, and using the data ciphering method of piecemeal, it is based on wireless MESH technology
The link evaluation system established of Channel Detection fully ensured that device end data reliable transmission in harsh environment.
2. multi-layer distribution internet of things data source service registration as described in claim 1 and access mechanism are it is characterized in that more
The data source registration mechanism of level, all information orders are issued by master control primary gateway；Primary gateway equipment constitutes the network system
The second layer, enjoys the authority at the highest level in addition to user right, and third layer starts to connect equipment networking, same layer equipment by special routing
Between can carry out Mesh networking；It is routed later by secondary and carries out the work such as equipment networking coordination:
A) endpoint to register equipment self-inspection forms nodal community frame, forwards as the generally acknowledged message of the overall situation.Pass through between same layer equipment
Mesh networking, makes up the short slab that edge device node can not touch, and different layers form information link table in primary routing, defer to system
One global information frame is reported.
B) it after destination node receives the message authentication frame with key hierarchy, replys gateway and carries out message authentication reply, gateway
The operations such as upper-layer client end master control nodal information generation are carried out again after receiving reply.
3. multi-layer distribution internet of things data source service registration as described in claim 1 and access mechanism are it is characterized in that can
The data source service access leaned on realizes that same layer equipment room nodes's data reporting needs route stand-by to carry out live calculating, according to number
Data send length and periphery node channel state carries out routing track algorithm and calculates, and select Optimization route path, or by saving
Point carries out multi-hop transmission, or is carried out netting interior data forwarding by Mesh networking.
4. multi-layer distribution internet of things data source service registration as described in claim 1 is with access mechanism it is characterized in that melting
The two-tier network topological structure that star-like and Mesh is combined is closed, using different groups when having taken into account a small amount of equipment and cluster device use
Web form reduces network overhead, and the node data source protection method and money matched by ranking score from the point of view of entire network
Source distribution keeps communication data more safe and reliable.
5. multi-layer distribution internet of things data source service registration as described in claim 1 and access mechanism are it is characterized in that collection
The multi-layer network system management mode that Chinese style is combined with distribution, cluster device control unify sending action order by master control,
When individual or equipment component are safeguarded, equipment component disengaging is carried out by Field Force as needed, highest priority is transferred at this time
To field control terminal.
6. multi-layer distribution internet of things data source service registration as described in claim 1 and access mechanism are in its feature in height
The data encryption principle of dynamic classification can carry out the data of piecemeal in master control layer, the even secondary routing of primary routing layer respectively
Encrypt assuring data security:
A) from the data encryption mode of master control, master control sending device action command is artificial to select data encryption grade and mode
B) from first/secondary routing cipher mode, manager sends the data for being added with key hierarchy according to field data importance
Frame, and receive to have the data ACK frame of key, control layer carries out key database decryption, and data safety biography is effectively ensured
It is defeated.
7. multi-layer distribution internet of things data source service registration as described in claim 1 and access mechanism are based on Wireless MESH
The link evaluation system that the Channel Detection of technology is established, in conjunction with the specific communication equipment that transmission control needs, in real time to net
Network channel variation intelligence makes a series of controls such as node transmitting power, transmission rate, coding mode, realizes channel resource
Optimal utilization.
8. the link that multi-layer distribution internet of things data source service registration as described in claim 1 and access mechanism are established
Evaluation system, using the concentrating type data source access mechanism for differentiating frame based on node, and between same layer using Mesh from group
Net mode effectively improves traditional single node access bring channel wastage, improves message reliability.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111698241A (en) * | 2020-06-09 | 2020-09-22 | 亚特智物联技术(广东)有限公司 | Internet of things cloud platform system, verification method and data management method |
| CN112989369A (en) * | 2021-02-09 | 2021-06-18 | 山东大学 | Data encryption learning method suitable for dynamic distributed Internet of things system |
| CN113407193A (en) * | 2021-07-01 | 2021-09-17 | 中国工商银行股份有限公司 | System deployment method, device and equipment |
| CN114125937A (en) * | 2022-01-25 | 2022-03-01 | 深圳市水务工程检测有限公司 | Water delivery tunnel disease detection data real-time transmission system based on wireless MESH ad hoc network |
| WO2022194030A1 (en) * | 2021-03-19 | 2022-09-22 | 北京智芯微电子科技有限公司 | Double-layer mac sensor network control method, apparatus and system |
-
2019
- 2019-01-28 CN CN201910080224.0A patent/CN109660408A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111698241A (en) * | 2020-06-09 | 2020-09-22 | 亚特智物联技术(广东)有限公司 | Internet of things cloud platform system, verification method and data management method |
| CN112989369A (en) * | 2021-02-09 | 2021-06-18 | 山东大学 | Data encryption learning method suitable for dynamic distributed Internet of things system |
| CN112989369B (en) * | 2021-02-09 | 2022-03-25 | 山东大学 | Data encryption learning method suitable for dynamic distributed Internet of things system |
| WO2022194030A1 (en) * | 2021-03-19 | 2022-09-22 | 北京智芯微电子科技有限公司 | Double-layer mac sensor network control method, apparatus and system |
| CN113407193A (en) * | 2021-07-01 | 2021-09-17 | 中国工商银行股份有限公司 | System deployment method, device and equipment |
| CN113407193B (en) * | 2021-07-01 | 2024-08-02 | 中国工商银行股份有限公司 | System deployment method, device and equipment |
| CN114125937A (en) * | 2022-01-25 | 2022-03-01 | 深圳市水务工程检测有限公司 | Water delivery tunnel disease detection data real-time transmission system based on wireless MESH ad hoc network |
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