CN103312829A - Heterogeneous network communication method and device - Google Patents
Heterogeneous network communication method and device Download PDFInfo
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Abstract
The invention discloses a heterogeneous network communication method and device. A virtual node corresponding to a node in a second network is arranged in a first network in advance by gateway equipment; the corresponding relationship of a real address and a virtual address is recorded; the information of the arranged virtual node is configured onto the node in the first network; the information comprises the virtual address. The method comprises the following steps: the gateway equipment receives a message sent by the node in the first network; the target address of the message is the virtual address of the node in the second network in the first network; the gateway equipment determines the real address corresponding to the target address of the message according to the corresponding relationship of the real address and the virtual address of the node in the second network; the gateway equipment repackages the message according to the protocol of the second network by the determined real address, and forwards the message to the second network. According to the invention, the data forwarding process between heterogeneous networks is free from the processing of an application layer.
Description
Technical field
The present invention relates to networking technology area, particularly relate to a kind of heterogeneous network communication means and device.
Background technology
A kind of computer network that sensor network is comprised of many automatics that spatially distribute, these devices use transducer to monitor respectively physics or the environmental aspect (such as temperature, sound, vibration, pressure, motion or pollutant etc.) of diverse location.
Sensor network connects an among a small circle network node of area of space, and gathers relevant information, accepts the control of far-end etc.For realize and far-end server between data interaction, need to be connected with other network by gateway, realize telecommunication.And sensor network most adopt privately owned, based on the network technology of non-IP, other network that is attached thereto then more adopts IP-based network technology.Therefore, as shown in Figure 1, sensor network gateway mainly is by its inner integrated sensor network communication module and other network communication module, receive respectively the message from two heterogeneous networks, and after application layer is resolved the data that obtain in the message, data are processed accordingly, to obtain the destination address of message, again message is carried out encapsulate forwarded.
In realizing process of the present invention, the inventor finds prior art, and there are the following problems at least:
In the prior art, sensor network gateway must be with the Data Analysis in the heterogeneous network to application layer, by parsing, processing, the forwarding of application layer realization to data.Realize the forwarding of message by application layer, processing procedure is too complicated, inefficiency.And because that sensor network is used is numerous, the logic of each application, the form of data are not identical, must for every kind of sensor network gateway that application and development is different, therefore, adopt prior art to be difficult to accomplish the standardization of sensor network gateway.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of method and apparatus of heterogeneous network communication, and to realize need not the processing of application layer in the process of data retransmission, for this reason, the embodiment of the invention adopts following technical scheme:
A kind of heterogeneous network communication means, gateway device arranges the dummy node corresponding with node in the second network in advance in first network, the corresponding relation of the true address of record node in second network and the virtual address in first network, and with on the information configuration of the dummy node that the arranges node in the first network, this information comprises virtual address, and the method comprises:
Described gateway device receives the message that node sends in the first network, and the destination address of described message is the virtual address of node in the second network;
Described gateway device is determined the true address corresponding to destination address of described message according to the true address of node in the second network and the corresponding relation of virtual address;
Described gateway device is according to the agreement Reseal described message of the true address of determining according to second network, and transmits described message to second network.
A kind of gateway device comprises:
Module is set, be used at first network the dummy node corresponding with node in the second network being set, the corresponding relation of the record true address of node in second network and virtual address in first network, and with on the information configuration of the dummy node that the arranges node in the first network;
Receiver module is used for receiving the message that the first network node sends, and the destination address of described message is the virtual address of node in the second network;
Determination module is used for according to the true address of second network node and the corresponding relation of virtual address, determines the true address corresponding to destination address of described message;
Forwarding module is used for according to the agreement Reseal described message of the true address of determining according to second network, and transmits described message to second network.
The above embodiment of the present invention, gateway device receives the message that node sends in the first network, the destination address of described message is the virtual address of node in the second network, according to the true address of node in the second network and the corresponding relation of virtual address, determine the true address corresponding to destination address of described message, and according to the agreement Reseal described message of the true address of determining according to second network, then transmit described message to second network, thereby can realize between heterogeneous network, carrying out need not in the process of data retransmission the processing of application layer.
Description of drawings
Fig. 1 is the principle schematic of sensor network gateway in the prior art;
Fig. 2 provides the schematic diagram of initial setting up flow process in the heterogeneous network communication means for the embodiment of the invention;
Fig. 3 provides one of schematic flow sheet of heterogeneous network communication means for the embodiment of the invention;
Fig. 4 provides the network architecture schematic diagram of heterogeneous network communication means for the embodiment of the invention;
Fig. 5 provide for the embodiment of the invention heterogeneous network communication means schematic flow sheet two;
Fig. 6 provide for the embodiment of the invention heterogeneous network communication means schematic flow sheet three;
Fig. 7 provide for the embodiment of the invention heterogeneous network communication means schematic flow sheet four;
The structural representation of the gateway device that Fig. 8 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing among the present invention, the technical scheme among the present invention is carried out clear, complete description, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Embodiment one
The embodiment of the invention provides the method for a kind of heterogeneous network communication, can be applied in the heterogeneous network on the Border Gateway equipment between the heterogeneous networks.
In embodiments of the present invention, heterogeneous network is before communicating, gateway device can arrange the dummy node corresponding with node in the second network in advance in first network, the corresponding relation of the true address of record node in second network and the virtual address in first network, then, on the information configuration of the dummy node that the arranges node in the first network, this information comprises virtual address.Wherein, first network and second network with different procotols consist of heterogeneous network jointly, in following specific embodiment, first network can be sensor network, and second network can be IP network, perhaps, first network is IP network, and second network is sensor network; Node herein is the basic network element that communicates in the network; True address is the address of node, and virtual address is that gateway device is the address in the first network that distributes of node is corresponding in the second network dummy node.As shown in Figure 2, concrete virtual (dummy node is set) and the process of recording address corresponding relation can may further comprise the steps.
In second network, can arrange all nodes all need with first network in node communicate, can arrange also that the node that only has part needs and first network in node communicate.For example, sensor network is communicated by letter with IP network, only has the information that sensor network is reported to carry out the node of relevant treatment in the IP network, just need to communicate with sensor network.So, gateway device only need obtain in the second network these need and first network in the relevant information of the node that communicates of node, such as address information (true address), node type information (as adding up platform, alarm platform etc.), node identification information etc.
Concrete, gateway device can be according to the information of node in the second network that gets access to, in first network, set up corresponding dummy node, the relevant information of this dummy node is set, such as virtual address, node type, node function, node identification, routing iinformation (being that the message routing of virtual address of this dummy node is to gateway device with destination address) etc., and according to the agreement of first network the dummy node of setting up is joined in the first network.
Further, can be with on the information configuration of the dummy node that the arranges node in the first network.Concrete, can be by the artificial mode that arranges with on the information configuration of the dummy node node in the first network.In addition, the information of each dummy node that can will be arranged by gateway device is notified to each node in the first network (specifically can be each node that need to communicate with second network), this information can comprise virtual address, can also comprise node type, node function, node identification etc., the routing iinformation that can also comprise in addition this dummy node, this routing iinformation can be that the message routing of virtual address of this dummy node is to gateway device with destination address.The node function information of dummy node can be, then send to this dummy node when producing certain type information, for example, dummy node in sensor network corresponding to the alarm platform in the IP network is dummy node 1, record in the information of dummy node 1 then sends to dummy node 1 when producing warning message.
As shown in Figure 3, the schematic flow sheet of the heterogeneous network communication process that provides for the embodiment of the invention comprises:
After having passed through the setting up procedure of above-mentioned dummy node, when the node in the first network need to send message to the node in the second network, its meeting sends message to corresponding dummy node, and the destination address of transmission is the virtual address that node is corresponding in the second network (this virtual address is the address under the first network agreement).This message is routed to gateway device through first network.
Gateway device receives the message that node sends in the first network, and according to the agreement of first network message is carried out decapsulation, obtains the destination address of message.
Concrete, gateway device is with the true address the determined destination address as message, according to the agreement Reseal message of second network, and the message after will encapsulating is routed to this true address through second network, is about to message routing to the realistic objective node of message transmission.
In the embodiment of the invention, gateway device receives the message that node sends in the first network, the destination address of described message is the virtual address of node in the second network, according to the true address of node in the second network and the corresponding relation of virtual address, determine the true address corresponding to destination address of described message, and according to the agreement Reseal described message of the true address of determining according to second network, then transmit described message to second network, thereby can realize between heterogeneous network, carrying out need not in the process of data retransmission the processing of application layer.
Embodiment two
The embodiment of the invention provides a kind of method of heterogeneous network communication, can be applied on the heterogeneous network Border Gateway equipment.
In embodiments of the present invention, heterogeneous network is before communicating, gateway device can arrange the dummy node corresponding with node in the second network in advance in first network, the corresponding relation of the true address of record node in second network and the virtual address in first network, then, on the information configuration of the dummy node that the arranges node in the first network, this information comprises virtual address; And the dummy node corresponding with node in the first network be set in second network in advance, the corresponding relation of the true address of record node in first network and the virtual address in second network, also can be with on the information configuration of the dummy node that the arranges node in the second network, this information comprises virtual address.Can be as shown in Figure 4 by the network architecture diagram that node and dummy node form.
In the embodiment of the invention, the dummy node corresponding with node in the second network is set in first network not only, the dummy node corresponding with node in the first network also is set in second network.And the process of the dummy node corresponding with node in the first network is set in second network, with in first network, arrange with second network in the detailed process of dummy node corresponding to node identical, can with reference to the particular content among the embodiment one, not do tired stating at this.
As shown in Figure 5, the schematic flow sheet of the heterogeneous network communication process that provides for the embodiment of the invention comprises:
When the node in the first network need to send message to the node in the second network, it can be with self true address as the source address of message, with the virtual address of target dummy node as destination address, according to the agreement of first network data are encapsulated and to obtain corresponding message, and this message is routed to gateway device through first network.
Gateway device receives the message that node sends in the first network, and according to the agreement of first network message is carried out decapsulation, obtain source address and the destination address of message, wherein, source address is the true address of node in this first network, and destination address is the virtual address of node in this second network.
Concrete, gateway device is according to the agreement of second network, and according to this source address and destination address, the data in the message are re-started encapsulation after, to the second network repeating.Message is before decapsulation, and source address and destination address are respectively the virtual addresses of node in the true address of node in the first network and the second network, and this is the address under the first network agreement; And behind Reseal, new source address and destination address are respectively the true address of node in the virtual address of node in this first network and this second network, and this is the address under the second network agreement.
In the embodiment of the invention, gateway device receives the message that node sends in the first network, the destination address of described message is the virtual address of node in the second network, according to the true address of node in the second network and the corresponding relation of virtual address, determine the true address corresponding to destination address of described message, and according to the agreement Reseal described message of the true address of determining according to second network, then transmit described message to second network, thereby can realize between heterogeneous network, carrying out need not in the process of data retransmission the processing of application layer.
The above embodiment of the present invention one, two just take first network and second network as example, is set forth the heterogeneous network communication means that the embodiment of the invention provides.It is to be noted, according to above method, in the heterogeneous network that plural network consists of, can realize the wherein mutually intercommunication between the arbitrary network, and the communication between each network can be finished at same standardized gateway device, for example, the method that certain gateway device provides according to the above embodiment of the present invention, both can realize communicating by letter of first network and second network, communicating by letter of second network and the 3rd network can be realized again, communicating by letter of first network and the 4th network can also be realized.On this standardized gateway device, only need the network that needs communicate is carried out corresponding virtual process with recording virtual address and true address corresponding relation, just can carry out the communication of corresponding network.
Below in conjunction with the application scenarios that concrete sensor network is communicated by letter with IP network, the heterogeneous network communication means that the embodiment of the invention provides is further set forth.
Embodiment three
In the application of temperature sensing network, be provided with a plurality of sensing nodes in the temperature sensing network and carry out temperature survey, sensing node reports aggregation node with the temperature that measures, when aggregation node was judged the temperature exceeding standard that certain sensing node reports, then the alarm platform (address of alarm platform in IP network is address A) in the IP network was reported to the police.
Sensor network gateway (borde gateway of sensor network and IP network) can be set up the dummy node of alarm platform in the temperature sensing network, the function that this dummy node is set is that sensing node carries out the destination node that temperature exceeding standard reports, dummy node distributes virtual address (address A ') for this reason, and the true address (address A) of record alarm platform and the corresponding relation of virtual address (address A ').After dummy node is set up and is finished, sensor network gateway can be notified the relevant information of this dummy node to each aggregation node in the temperature sensing network, content of announcement can comprise: the address of this dummy node is address A ', and the destination node of reporting to the police when this dummy node is the sensing node temperature exceeding standard, and the routing iinformation of this dummy node (be that the message routing of this dummy node to sensor network gateway with target).
When the temperature that certain sensing node that receives when certain aggregation node (aggregation node 1) judgement reports surpasses temperature threshold, then carry out alarm flow as shown in Figure 6, comprising:
In the embodiment of the invention, gateway device receives the message that node sends in the first network, the destination address of described message is the virtual address of node in the second network, according to the true address of node in the second network and the corresponding relation of virtual address, determine the true address corresponding to destination address of described message, and according to the agreement Reseal described message of the true address of determining according to second network, then transmit described message to second network, thereby can realize between heterogeneous network, carrying out need not in the process of data retransmission the processing of application layer.
Embodiment four
In the temperature sensing network, management platform can be set in IP network, the keeper can control each node in the temperature sensing network by management platform.
Sensor network gateway can be set up the dummy node of each aggregation node in IP network, the function that dummy node is set is that information converges, and for these dummy nodes distribute virtual address, and the virtual address of record aggregation node and the corresponding relation of true address.Sensor network gateway can also be set up the dummy node of management platform in the temperature sensing network, the function that dummy node is set is information management, and for this dummy node distributes virtual address, and the corresponding relation of the virtual address of record management platform and true address.
After above-mentioned dummy node is set up and is finished, sensor network gateway can be with relevant information (the comprising virtual address) notice of the dummy node of aggregation node to IP network, and with relevant information (the comprising virtual address) notice of the dummy node of management platform to the temperature sensing network.
When the keeper need to by management platform recognize certain sensing node (sensing node a) locate temperature information the time, the temperature information that then can carry out as shown in Figure 7 obtains flow process, comprising:
As destination address, address B ' carries out Reseal according to sensor network protocol to message as source address, and sends to aggregation node 1 by the temperature sensing network with address 1 for step 705, sensor network gateway.
Step 706 after aggregation node 1 receives this message, is obtained the temperature information of sensing node a, and is reported management platform.Concrete reports the alarm procedure among process and the embodiment three similar, does not do tired stating at this.
In the embodiment of the invention, gateway device receives the message that node sends in the first network, the destination address of described message is the virtual address of node in the second network, according to the true address of node in the second network and the corresponding relation of virtual address, determine the true address corresponding to destination address of described message, and according to the agreement Reseal described message of the true address of determining according to second network, then transmit described message to second network, thereby can realize between heterogeneous network, carrying out need not in the process of data retransmission the processing of application layer.
Embodiment five
Based on identical technical conceive, the embodiment of the invention also provides a kind of gateway device, can be used as sensor network gateway, and as shown in Figure 8, this gateway device comprises:
Preferably,
The described module 810 that arranges also is used at second network the dummy node corresponding with node in the first network being set, and the corresponding relation of the true address of record node in first network and the virtual address in second network;
Described determination module 830 also is used for according to the true address of first network node and the corresponding relation of virtual address, determines the virtual address corresponding to source address of described message;
Described forwarding module 840, concrete being used for the virtual address of the described first network node source address as described message, with the true address of node in the described second network as destination address, according to the described message of agreement Reseal of second network.
Preferably, the described module 810 that arranges specifically is used for:
Obtain the information that needs the node that communicates with first network in the second network, this information comprises true address;
According to the information of obtaining, the dummy node corresponding with each node in the second network that gets access to is set in first network, and is each dummy node distribution virtual address;
The true address of each node and the corresponding relation of virtual address in the second network that record gets access to.
Preferably, described forwarding module 840, concrete true address for determining is as the destination address of described message, according to the described message of agreement Reseal of second network.
Preferably, described first network is specially sensor network, and described second network is specially IP network; Perhaps, described first network is specially IP network, and described second network is specially sensor network.
In the embodiment of the invention, gateway device receives the message that node sends in the first network, the destination address of described message is the virtual address of node in the second network, according to the true address of node in the second network and the corresponding relation of virtual address, determine the true address corresponding to destination address of described message, and according to the agreement Reseal described message of the true address of determining according to second network, then transmit described message to second network, thereby can realize between heterogeneous network, carrying out need not in the process of data retransmission the processing of application layer.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode in a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (10)
1. heterogeneous network communication means, it is characterized in that, gateway device arranges the dummy node corresponding with node in the second network in advance in first network, the corresponding relation of the true address of record node in second network and the virtual address in first network, and with on the information configuration of the dummy node that the arranges node in the first network, this information comprises virtual address, and the method comprises:
Described gateway device receives the message that node sends in the first network, and the destination address of described message is the virtual address of node in the second network;
Described gateway device is determined the true address corresponding to destination address of described message according to the true address of node in the second network and the corresponding relation of virtual address;
Described gateway device is according to the agreement Reseal described message of the true address of determining according to second network, and transmits described message to second network.
2. the method for claim 1, it is characterized in that, also comprise: gateway device arranges the dummy node corresponding with node in the first network in advance in second network, and the corresponding relation of the true address of record node in first network and the virtual address in second network;
Described gateway device receives after the message that node sends in the first network, and also comprise: described gateway device is determined the virtual address corresponding to source address of described message according to the true address of node in the first network and the corresponding relation of virtual address;
Described gateway device is according to the agreement Reseal described message of the true address of determining according to second network, be specially: described gateway device is with the virtual address of node in the described first network source address as described message, with the true address of node in the described second network as destination address, according to the described message of agreement Reseal of second network.
3. the method for claim 1, it is characterized in that, described gateway device arranges the dummy node corresponding with node in the second network in advance in first network, the corresponding relation of the true address of record node in second network and the virtual address in first network is specially:
Described gateway device obtains the information that needs the node that communicates with first network in the second network, and this information comprises true address;
Described gateway device arranges the dummy node corresponding with each node in the second network that gets access to according to the information of obtaining in first network, and is each dummy node distribution virtual address;
The true address of each node and the corresponding relation of virtual address in the second network that described gateway device record gets access to.
4. the method for claim 1 is characterized in that, described gateway device is specially according to the described message of agreement Reseal of the true address of determining according to second network:
Described gateway device is with the true address the determined destination address as described message, according to the described message of agreement Reseal of second network.
5. the method for claim 1 is characterized in that, described first network is specially sensor network, and described second network is specially IP network; Perhaps, described first network is specially IP network, and described second network is specially sensor network.
6. a gateway device is characterized in that, comprising:
Module is set, be used at first network the dummy node corresponding with node in the second network being set, the corresponding relation of the record true address of node in second network and virtual address in first network, and with on the information configuration of the dummy node that the arranges node in the first network;
Receiver module is used for receiving the message that the first network node sends, and the destination address of described message is the virtual address of node in the second network;
Determination module is used for according to the true address of second network node and the corresponding relation of virtual address, determines the true address corresponding to destination address of described message;
Forwarding module is used for according to the agreement Reseal described message of the true address of determining according to second network, and transmits described message to second network.
7. gateway device as claimed in claim 6 is characterized in that,
The described module that arranges also is used at second network the dummy node corresponding with node in the first network being set, and the corresponding relation of the true address of record node in first network and the virtual address in second network;
Described determination module also is used for according to the true address of first network node and the corresponding relation of virtual address, determines the virtual address corresponding to source address of described message;
Described forwarding module, concrete being used for the virtual address of the described first network node source address as described message, with the true address of node in the described second network as destination address, according to the described message of agreement Reseal of second network.
8. gateway device as claimed in claim 6 is characterized in that, the described module that arranges specifically is used for:
Obtain the information that needs the node that communicates with first network in the second network, this information comprises true address;
According to the information of obtaining, the dummy node corresponding with each node in the second network that gets access to is set in first network, and is each dummy node distribution virtual address;
The true address of each node and the corresponding relation of virtual address in the second network that record gets access to.
9. gateway device as claimed in claim 6 is characterized in that, described forwarding module, and concrete true address for determining is as the destination address of described message, according to the described message of agreement Reseal of second network.
10. gateway device as claimed in claim 6 is characterized in that, described first network is specially sensor network, and described second network is specially IP network; Perhaps, described first network is specially IP network, and described second network is specially sensor network.
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Application publication date: 20130918 |