CN101951693A - Thing Internet gateway of heterogeneous wireless network and control method thereof - Google Patents
Thing Internet gateway of heterogeneous wireless network and control method thereof Download PDFInfo
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Abstract
The invention discloses a thing Internet gateway of a heterogeneous wireless network and a control method thereof. Function, such as protocol conversion, route selection, data exchange and the like, is provided in the network interworking process of different structures or protocols of the thing Internet. The gateway is a multi-layer cascading gateway and comprises a main gateway used for communication, sensor network management and topology management, and sub-gateways responsible for converting and penetrating a short-range wireless protocol and receiving front-end sensing network data, wherein each of the sub-gateways is connected with the main gateway. The limitation to the access ability of a sensor network is overcome, so that various front-end sensing nodes access a thing Internet platform without barriers; free networking of the sensor network front end is realized by taking full advantage of the conventional communication capacity and cascading gateway technology at the same time; the problems of the failure management and performance management of the sensor network front end are effectively solved; and the safety, the reliability and the stability of the sensor network and neurones are enhanced.
Description
Technical field
The present invention relates to the data communication technique field, is a kind of under the heterogeneous wireless network environment specifically, is made of the multilayer gateway of stacked structure, realizes the things-internet gateway and the control method of the effective interconnected heterogeneous wireless network between thing and the thing.
Background technology
Things-internet gateway is the important component part of Internet of things system platform, also be realize data penetration transmission, solve multiple isomery technology, to the core component of front end sensing network control networking.
Internet of Things is meant a huge network that various sensing equipments and the Internet is combined and form, and all products are connected with network, finally realizes people and thing, the information transmission between thing and the thing.Internet of Things essence is to be perception with unlimited sensor-based network technology and RFID technology, realizes interconnecting of all products.Internet of Things has perception, reliable delivery, Intelligent treatment characteristics, is the information technology after computer, the Internet, mobile communication.
Internet of things system is divided into three levels: sensing layer, network layer, application layer, and briefly describe the system architecture of Internet of Things according to this.Sensing layer solves is the problem that the data of the human world and physical world are obtained.Can further be divided into two sublayers, at first be the data of gathering the external physical world by equipment such as transducer, digital cameras, then by RFID, bar code, industrial field bus, bluetooth, short-range transmission technique Data transmission such as infrared.This one deck of short-distance transmission that also can have only data particularly ought only transmit the situation of the unique identifier of article.Actually, these two sublayers are difficult to sometimes clearly to distinguish.The needed key technology of sensing layer comprises detection technique, short distance is wired and wireless communication technology etc.
Network layer solves be the data that obtain of sensing layer within the specific limits, the transmission problem of long distance normally.These data can be passed through Network Transmission such as mobile radio communication, Internet, intranet, all kinds of private network, small-sized local area network (LAN).Particularly after the integration of three networks, cable television network also can be born the function of Internet of Things network layer, and the quickening that helps Internet of Things advances.The needed key technology of network layer comprises long distance wired and wireless communication technology, network technology etc.
What application layer solved is the problem of information processing and man-machine interface.Network layer transmission and the data of coming enter the various information system and handle in this one deck, and are undertaken alternately by various device and people.This one deck also can be divided into two sons intuitively by form: one is application layer, carry out data processing, it has contained each field of national economy and society, application layer comprises fields such as electric power, medical treatment, bank, traffic, environmental protection, logistics, industry, agricultural, city management, life staying idle at home, can be used for government, enterprise, social organization, family simultaneously; Another is the terminal equipment layer, be used to provide man-machine interface, though Internet of Things is " net that the thing thing links to each other ", but finally be to want that people-oriented, final operation and the control that still needs the people, the notion of current head and shoulders above people of the man-machine interface here and computer interactive but, but various device that general reference links to each other with application program and people's feedback.
Between each layer, information is not unidirectional delivery, and mutual, control etc. can be arranged, and the information of being transmitted is varied, this wherein key be the information of article, be included in the application-specific system scope can the unique identification article identification code and the static state and the multidate information of article.In addition, software and integrated circuit technique all are the required technology of each layer.
Things-internet gateway is the nucleus equipment during Internet of Things is used, and things-internet gateway is equipped with sensing network interface and wide area IP network interface simultaneously, is responsible for carrying out data forwarding between sensing network and various wide area IP network.Gateway also can provide the management function to the front end sensing network usually, and aware network management API is distributed to distant place management platform.
But, there is following not enough point in the aforesaid prior art:
Field network is of a great variety, standard differs, various field networks have nothing in common with each other, there are not unified standard in the hardware capabilities of gateway and software API, cause the complexity of lower floor's network, make the exploitation of Internet of Things and use all to have big difficulty and need to drop into more cost.Existing Internet of Things is owing to be subjected to the strictness restriction of transmission means, the agreement of front end awareness apparatus, can't realize effectively interconnected between thing and the thing.Owing to be subjected to the restriction of sensing network access capability, can't realize MANET in the regional extent to sensing network, can't not insert the Internet of Things platform so do not possess the front end sensing node of communication protocol abilities such as SMS, USSD, TCP, UDP.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of under the heterogeneous wireless network environment, is made of the multilayer gateway of stacked structure, realizes the things-internet gateway and the control method of the effective interconnected heterogeneous wireless network between thing and the thing.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
The things-internet gateway of heterogeneous wireless network of the present invention, in the network interworking process of the different structure of Internet of Things or agreement, provide functions such as protocol conversion, Route Selection, exchanges data, above-mentioned gateway is multi-level stacked gateway, comprise: be used to communicate by letter, the primary gateway of aware network management and Topology Management, and the subnet of the conversion of responsible short-range wireless protocol and transparent transmission and front end sensing network Data Receiving closes; Each subnet closes and is connected with primary gateway respectively.
The present invention also can be by the following technical solutions:
Above-mentioned subnet closes and is the stacked structure of multilayer.
The control method of the things-internet gateway based on heterogeneous wireless network of the present invention comprises step:
A, primary gateway are carried out the parsing of data to the Internet of Things data;
B, order is sent to corresponding perception front end by pre-set agreement;
C, front end sensing network information is returned, analyzes by predetermined protocol;
D, data are sent to other Internet of Things platforms and other terminal equipments by wireless network.
Primary gateway is to the parsing or the transparent transmission of Internet of Things platform data, and the conversion of putting the transparent transmission of line data and communication mode into by subnet layer by layer is sent to data the sensing node of front end; The front end sensing node is according to data or command execution corresponding instruction, and the conversion by subnet is put the transparent transmission and the communication mode of line data into is transferred to primary gateway, and primary gateway is carried out the parsing and the management of packet, is sent to the Internet of Things platform by network.
The communication function of primary gateway is realized may further comprise the steps:
A, user terminal are browsed platform by the rear end and need be obtained the information of front end sensing network and sensing node is carried out control operation;
B, service centre carry out the compiling of data, manage, are transferred to primary gateway by 3G or internet platform;
C, primary gateway are carried out the parsing of data, agreement or command conversion, and the next stage subnet that forwards the data to affiliated area closes;
The forwarding layer by layer that d, the stacked subnet of process close arrives the front end sensing node;
E, front end sensing node receive order, carry out the passback of execute-in-place and data;
The subnet that f, front end perception data upload to the higher level closes;
G, subnet close and successively upload to primary gateway;
H, primary gateway are carried out parsing, the processing of data, and data are sent to the rear end platform;
I, user terminal get access to the information of front end sensing node by browser.
Advantage and good effect that the present invention has are:
The things-internet gateway of heterogeneous wireless network of the present invention is stacked gateway structure, the mutual combination in subnet pass by primary gateway and multilayer has realized the information mutual communication in the heterogeneous network, primary gateway is to the parsing or the transparent transmission of Internet of Things platform data, and the conversion of putting the transparent transmission of line data and communication mode into by subnet layer by layer is sent to data the sensing node of front end; The front end sensing node is according to data or command execution corresponding instruction, and the conversion by subnet is put the transparent transmission and the communication mode of line data into is transferred to primary gateway, and primary gateway is carried out the parsing and the management of packet, is sent to the Internet of Things platform by network.The present invention has overcome the restriction of prior art to the sensing network access capability, makes various supports not possess the clog-free Internet of Things platform that is linked into of front end sensing node of communication protocol abilities such as SMS, USSD, TCP, UDP; And make full use of existing communication capacity, utilize stacked gateway technique to realize the MANET of sensing network front end simultaneously, effectively solve fault management, the performance management of perception front end, strengthened sensing network and neuronic fail safe, reliability and stability.
Description of drawings
Fig. 1 is the group-network construction figure of the things-internet gateway of heterogeneous wireless network of the present invention;
Fig. 2 is the transfer of data schematic diagram of the things-internet gateway of heterogeneous wireless network of the present invention;
Fig. 3 is the flow chart of the control method of the things-internet gateway based on heterogeneous wireless network of the present invention;
Fig. 4 is the embodiment schematic diagram that the things-internet gateway of heterogeneous wireless network of the present invention adopts three-decker;
Fig. 5 is based on the embodiment schematic diagram of things-internet gateway in the laboratory room managing system of heterogeneous wireless network.
Embodiment
It is following that the present invention will be described in detail with reference to drawings and Examples.
Fig. 1 is the group-network construction figure of the things-internet gateway of heterogeneous wireless network of the present invention; Fig. 2 is the transfer of data schematic diagram of the things-internet gateway of heterogeneous wireless network of the present invention; Fig. 3 is the flow chart of the control method of the things-internet gateway based on heterogeneous wireless network of the present invention; Fig. 4 is the embodiment schematic diagram that the things-internet gateway of heterogeneous wireless network of the present invention adopts three-decker.
As shown in Figures 1 to 4, the things-internet gateway of heterogeneous wireless network of the present invention is multi-level stacked gateway, comprise: be used to communicate by letter, the primary gateway of aware network management and Topology Management, and the subnet of the conversion of responsible short-range wireless protocol and transparent transmission and front end sensing network Data Receiving closes; Each subnet closes and is connected with primary gateway respectively.Realize the transmission of front end sensing network and rear end Internet of Things platform data by the gateway of multi-level heterogeneous structure and the conversion of various wireless communication mode, and sensing network is carried out the transparent transmission of networking voluntarily, control and data by predetermined agreement.
Primary gateway realizes communication, aware network management and Topology Management, and wherein communication function comprises the interface about IP, the transparent transmission of data, and the collection of information is uploaded, the assigning of control command; The aware network management function comprises and organizes subnets at different levels to close the self-organizing network of forming front end neuron and nerve endings, the management of the node state that subnet closes, the selfreparing of system; Topology management function comprises the topological sorting that primary gateway and each subnet close.
Subnet close to be responsible for the conversion and the transparent transmission of short-range wireless protocol, is responsible for the Data Receiving of front end sensing network simultaneously, includes but not limited to the conversion of WIFI, ZIGBEE, bluetooth, infrared, serial ports, U mouth.Subnet closes and is the stacked structure of multilayer.
The communication function of primary gateway is realized may further comprise the steps:
A, user terminal are browsed platform by the rear end and need be obtained the information of front end sensing network and sensing node is carried out control operation;
B, service centre carry out the compiling of data, manage, are transferred to primary gateway by 3G or internet platform;
C, primary gateway are carried out the parsing of data, agreement or command conversion, and the next stage subnet that forwards the data to affiliated area closes;
The forwarding layer by layer that d, the stacked subnet of process close arrives the front end sensing node;
E, front end sensing node receive order, carry out the passback of execute-in-place and data;
The subnet that f, front end perception data upload to the higher level closes;
G, subnet close and successively upload to primary gateway;
H, primary gateway receive the reporting information that each subnet closes, and form LAN automatically, realize the interconnection between the different sub-network pass;
I,, certain subnet all sends oneself state information to primary gateway when closing for a long time, and do not report yet and oneself enter off-mode, then primary gateway is differentiated this subnet pass for malfunction, descend simultaneously photos and sending messages can to detect other gateways that this subnet closes the front end sensing node for other, close the transfer of data that replacement fault gateway carries out sensing network by other subnets.
The control method of the things-internet gateway based on heterogeneous wireless network of the present invention comprises:
A, primary gateway are carried out the parsing of data to the Internet of Things data;
B, order is sent to corresponding perception front end by pre-set agreement;
C, front end sensing network information is returned, analyzes by predetermined protocol;
D, data are sent to other Internet of Things platforms and other terminal equipments by wireless network.
Primary gateway is to the parsing or the transparent transmission of Internet of Things platform data, and the conversion of putting the transparent transmission of line data and communication mode into by subnet layer by layer is sent to data the sensing node of front end; The front end sensing node is according to data or command execution corresponding instruction, and the conversion by subnet is put the transparent transmission and the communication mode of line data into is transferred to primary gateway, and primary gateway is carried out the parsing and the management of packet, is sent to the Internet of Things platform by network.
Fig. 5 is based on the embodiment schematic diagram of things-internet gateway in the laboratory room managing system of heterogeneous wireless network.
As shown in the figure, the laboratory room managing system is become by following 3 groups of subsystems: the asset management system, personnel location system and security protection safeguard system.Wherein asset management of front end sensing network and personnel positioning adopt passive RFID and active RFID to carry out the perception of front end respectively, and security protection safeguard system front end sensing network comprises wireless door magnetic, Radio infrared, wireless smoke sense.Security protection equipment wireless door magnetic, infrared, smoke alarm employing 315M radio communication, the perceptual signal that native system receives 315M adopts 315M to change the subnet pass of ZigBee.Be respectively 915M and 2.4G wireless radio-frequency between RFID equipment card reader and the label, the interface that card reader is reserved is a serial ports, and the subnet of this node closes the subnet that adopts serial ports to change Wi-Fi and closes.Camera is reserved the Wi-Fi wireless communication technique, directly links to each other with primary gateway, carries out radio communication.Each subnet closes the signal that receives the front end perception, carries out the reception of data and the conversion of communication mode, and to primary gateway, primary gateway is carried out the parsing of data according to the data of front end transmission with transfer of data.
Each subnet closes so long as open state, send the networking signal to primary gateway respectively every 1S, signal format is as follows: 1. header (OXAA), 2.ID: the numbering (1---255) of self gateway 3. sends the procotol that 4. use address (1---255), 5. the state of self (0 well, 1 fault), 6. (0 reports transmission means, 1 issues) 7. 8. checking data, 9. telegram end (OX55) of open state (00 has just started shooting, 01 normal 02 shutdown at once).
Primary gateway receives the reporting information that each subnet closes, and forms LAN automatically, realizes the interconnection between the different sub-network pass.
When closing for a long time, certain subnet all do not send oneself state information to primary gateway, and do not report yet and oneself enter off-mode, then primary gateway is differentiated this subnet pass for malfunction, descend simultaneously photos and sending messages can to detect other gateways that this subnet closes the front end sensing node for other, close the transfer of data that replacement fault gateway carries out sensing network by other subnets.
Wireless smoke sense with safety-protection system is example explanation communication and sensing node management process:
When the wireless smoke sense detects front end the smoke condition situation is arranged, close 1 by the ZigBee communications to subnet, subnet closes 1 and carries out the conversion of agreement and the transmission of data.
Subnet closes 1 message transmission is obtained the data that the wireless smoke sense is sent to the primary gateway primary gateway, data are judged, inform alarm equipment alarm at once, exist side by side to inscribe and reach order notice camera and take pictures in real time, after camera is taken pictures, primary gateway encapsulates by the 3G network platform data and is sent to respectively on backstage service centre and chief leading cadre's the mobile phone with TCP/IP and SMS agreement, relevant director is according to multimedia message photo and the information obtained, issue an order by long-range, transparent transmission by the network platform, arrive primary gateway, primary gateway control front end sprinkler is put out a fire and is puted out a fire to save life and property; Simultaneously the director can obtain field data in the very first time, the scene situation of carrying out is handled with the shortest time.
The things-internet gateway of heterogeneous wireless network of the present invention is stacked gateway structure, the mutual combination in subnet pass by primary gateway and multilayer has realized the information mutual communication in the heterogeneous network, primary gateway is to the parsing or the transparent transmission of Internet of Things platform data, and the conversion of putting the transparent transmission of line data and communication mode into by subnet layer by layer is sent to data the sensing node of front end; The front end sensing node is according to data or command execution corresponding instruction, and the conversion by subnet is put the transparent transmission and the communication mode of line data into is transferred to primary gateway, and primary gateway is carried out the parsing and the management of packet, is sent to the Internet of Things platform by network.The present invention has overcome the restriction of prior art to the sensing network access capability, makes various supports not possess the clog-free Internet of Things platform that is linked into of front end sensing node of communication protocol abilities such as SMS, USSD, TCP, UDP; And make full use of existing communication capacity, utilize stacked gateway technique to realize the MANET of sensing network front end simultaneously, effectively solve fault management, the performance management of perception front end, strengthened sensing network and neuronic fail safe, reliability and stability.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (5)
1. the things-internet gateway of a heterogeneous wireless network, in the network interworking process of the different structure of Internet of Things or agreement, provide functions such as protocol conversion, Route Selection, exchanges data, it is characterized in that: above-mentioned gateway is multi-level stacked gateway, comprise: be used to communicate by letter, the primary gateway of aware network management and Topology Management, and the subnet of the conversion of responsible short-range wireless protocol and transparent transmission and front end sensing network Data Receiving closes; Each subnet closes and is connected with primary gateway respectively.
2. the things-internet gateway of heterogeneous wireless network according to claim 1 is characterized in that: above-mentioned subnet closes and is the stacked structure of multilayer.
3. control method based on the things-internet gateway of heterogeneous wireless network is characterized in that may further comprise the steps:
A, primary gateway are carried out the parsing of data to the Internet of Things data;
B, order is sent to corresponding perception front end by pre-set agreement;
C, front end sensing network information is returned, analyzes by predetermined protocol;
D, data are sent to other Internet of Things platforms and other terminal equipments by wireless network.
4. the control method of the things-internet gateway based on heterogeneous wireless network according to claim 3, it is characterized in that: primary gateway is to the parsing or the transparent transmission of Internet of Things platform data, and the conversion of putting the transparent transmission of line data and communication mode into by subnet layer by layer is sent to data the sensing node of front end; The front end sensing node is according to data or command execution corresponding instruction, and the conversion by subnet is put the transparent transmission and the communication mode of line data into is transferred to primary gateway, and primary gateway is carried out the parsing and the management of packet, is sent to the Internet of Things platform by network.
5. the control method of the things-internet gateway based on heterogeneous wireless network according to claim 3 is characterized in that: the communication function of primary gateway is realized may further comprise the steps:
A, user terminal are browsed platform by the rear end and need be obtained the information of front end sensing network and sensing node is carried out control operation;
B, service centre carry out the compiling of data, manage, are transferred to primary gateway by 3G or internet platform;
C, primary gateway are carried out the parsing of data, agreement or command conversion, and the next stage subnet that forwards the data to affiliated area closes;
The forwarding layer by layer that d, the stacked subnet of process close arrives the front end sensing node;
E, front end sensing node receive order, carry out the passback of execute-in-place and data;
The subnet that f, front end perception data upload to the higher level closes;
G, subnet close and successively upload to primary gateway;
H, primary gateway are carried out parsing, the processing of data, and data are sent to the rear end platform;
I, user terminal get access to the information of front end sensing node by browser.
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