CN103037361A - Internet protocol (IP) distribution system in wireless Mesh network based on Ad-hoc and IP distribution method in the wireless Mesh network based on the Ad-hoc - Google Patents
Internet protocol (IP) distribution system in wireless Mesh network based on Ad-hoc and IP distribution method in the wireless Mesh network based on the Ad-hoc Download PDFInfo
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Abstract
The invention provides an internet protocol (IP) distribution system in a wireless Mesh network based on Ad-hoc. Each network node in the wireless Mesh network comprises a first memory unit, a second memory unit, a temporary IP setting unit, a probing message sending unit and a node IP setting unit, wherein the temporary IP setting unit is used for choosing a temporary IP address from the second memory unit and configuring the temporary IP address as an IP address of the network node; the probing message sending unit is used for choosing a node IP address from the first memory unit, creating and sending a routing request message with the node IP address as a destination address; the node IP setting unit is used for setting the node IP address as the IP address of the network node when a routing response message is not received in a preset time. The invention further provides an IP distribution method in the wireless Mesh network based on the Ad-hoc. According to the IP distribution system in the wireless Mesh network based on the Ad-hoc and the IP distribution method in the wireless Mesh network based on the Ad-hoc, the node IP address is used as the destination address to probe in the wireless Mesh network, and the IP automatic distribution in the wireless Mesh network based on the Ad-hoc can be achieved.
Description
Technical field
The present invention relates to the wireless Mesh netword field, more particularly, relate to a kind of based on IP distribution system and method in the wireless Mesh netword of Ad-hoc.
Background technology
In cable LAN, device IP generally is to realize automatic distribution by the DHCP agreement.One or more nodes in the DHCP protocol requirement specified network are managed concentratedly and distributing IP as server; Other node obtains unappropriated IP as the machine address as client by the request of sending to server.The DHCP agreement is based on udp protocol, and finishes the information interaction of IP before distributing by carry out broadcast in local area network (LAN) inside.
The Ad-hoc network is a kind of special mobile radio network, and in this network, all nodes equal need not to arrange any center control node.And the node in this network not only has the required function of common mobile terminal, and has the message repeating ability.The outstanding advantages such as networking is rapid because wireless Ad Hoc network possesses, flexible structure, transmission rate is large, reliability is strong, cost is low are applicable to digitlization, intellectuality and microminiaturized embedded system, and progressively are applied to Industry Control and military field.
In the wireless Mesh netword based on Ad-hoc, the DHCP agreement can't be worked.Basic reason is that each node in the wireless Mesh netword can't be guaranteed and can directly be communicated with, and only broadcasts in the small area network that directly is communicated with based on the broadcast of udp protocol, and can't broadcast in whole Mesh network.Therefore, can't finish the automatic assigning process of IP based on each node in the wireless Mesh netword of Ad-hoc by the DHCP agreement.
Summary of the invention
The technical problem to be solved in the present invention is, for above-mentioned problem based on can't automatically carrying out the IP distribution in the wireless Mesh netword of Ad-hoc, provides a kind of based on IP distribution system and method in the wireless Mesh netword of Ad-hoc.
The technical scheme that the present invention solves the problems of the technologies described above is, provide a kind of based on the IP distribution system in the wireless Mesh netword of Ad-hoc, each network node in the described wireless Mesh netword comprises the first memory cell, the second memory cell, the temporary IP setting unit, sound out packet sending unit and node IP setting unit, wherein: comprise a plurality of node IP address in described the first memory cell, comprise a plurality of temporary ip address in described the second memory cell, node IP address and the temporary ip address in the second memory cell in described the first memory cell are positioned at same IP available section and not overlapping; Described temporary IP setting unit is for the IP address that also this temporary ip address is configured to this network node from temporary ip address of the second memory cell selecting; Described exploration packet sending unit is used for from node IP address of the first memory cell selecting, creates the route requests message take this node IP address as destination address and send described route requests message; The node IP setting unit, described node IP address is set to the IP address of this network node when being used for not receiving the route response message in the given time.
Of the present invention based on the IP distribution system in the wireless Mesh netword of Ad-hoc in, described IP distribution system also comprises sounds out the time-out count device, and described node IP setting unit will be soundd out the zero clearing of time-out count device before souning out packet sending unit transmission route requests message;
Described node IP setting unit makes the exploration packet sending unit again create the route requests message when receiving the route feedback message of described route requests message and sends; When not receiving route feedback message, described exploration time-out count device added 1 and when the value of this exploration time-out count device reaches set point the destination address in the described route requests message be set to the IP address of this network node.
Of the present invention based on the IP distribution system in the wireless Mesh netword of Ad-hoc in, described exploration packet sending unit when creating the route requests message, from the node IP address of the non-selected mistake of the first memory cell selecting current network node as destination address.
Of the present invention based on the IP distribution system in the wireless Mesh netword of Ad-hoc in, in described wireless Mesh netword, the same time only have a network node the temporary IP setting unit, sound out packet sending unit and the operation of node IP setting unit.
Of the present invention based on the IP distribution system in the wireless Mesh netword of Ad-hoc in, described IP available section is C class IP section, and also comprise the 3rd memory cell that stores a plurality of IP addresses for gateway in this C class IP section, not overlapping for the IP address of gateway and the node IP address in the first memory cell, temporary ip address in the second memory cell in described the 3rd memory cell.
It is a kind of based on the IP distribution method in the wireless Mesh netword of Ad-hoc that the present invention also provides, and may further comprise the steps:
(a) network node is configured to the IP address of this network node from temporary ip address of the second interval selection and with this temporary ip address, comprises a plurality of temporary ip address between described Second Region;
(b) described network node is from node IP address of the first interval selection and create route requests message take this node IP address as destination address, described the first interval comprises a plurality of node IP address, is positioned at same IP available section and not overlapping between described the first interval and Second Region;
Described node IP address was set to the IP address of this network node when (c) described network node sent described route requests message and do not receive in the given time the route response message.
Of the present invention based on the IP distribution method in the wireless Mesh netword of Ad-hoc in, described step (c) comprising:
(c1) will sound out the zero clearing of time-out count device;
(c2) described network node sends described route requests message and return step (b) when this network node receives the route feedback message of described route requests message, otherwise execution in step (c3);
(c3) described exploration time-out count device is added 1 and judge whether the value of this exploration time-out count device reaches set point, if reach then execution in step (c4) of set point, otherwise return step (c2);
(c4) the described node IP address of described network node is set to the IP address of this network node.
Of the present invention based on the IP distribution method in the wireless Mesh netword of Ad-hoc in, in the described step (b), network node is from the node IP address of the non-selected mistake of the first interval selection current network node.
Of the present invention based on the IP distribution method in the wireless Mesh netword of Ad-hoc in, in described wireless Mesh netword, the same time only has a network node to carry out described IP distribution method.
Of the present invention based on the IP distribution method in the wireless Mesh netword of Ad-hoc in, described IP available section is C class IP section, and also comprise in this C class IP section and described the first interval, Second Region between nonoverlapping the 3rd interval, comprise a plurality of IP addresses for gateway in described the 3rd interval.
Of the present invention based on IP distribution system and method in the wireless Mesh netword of Ad-hoc, by node IP address is soundd out in wireless Mesh netword as destination address, can realize automatically distributing based on IP in the wireless Mesh netword of Ad-hoc.
Description of drawings
Fig. 1 is the schematic diagram that the present invention is based on the IP distribution system embodiment in the wireless Mesh netword of Ad-hoc.
Fig. 2 is the schematic flow sheet that the present invention is based on the IP distribution method embodiment in the wireless Mesh netword of Ad-hoc.
Fig. 3 is the flow chart that node IP address is set among Fig. 2.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The present invention introduces " as required distance vector Routing Protocol " between the wireless network node based on Ad-hoc, and namely the AODV agreement is finished from the network of " point-to-point ", to the Mesh extension of network of " netted ".The present invention safeguards and renewal process by the searching of the route of signal post's dependence between each node of AODV agreement realization Mesh network internal; Simultaneously, the AODV agreement also is enforcement basis and the effect carrier of system and method for the present invention.The present invention is on the AODV protocol basis, and by introducing " conflict address detected " algorithm, i.e. DAD algorithm is finished the automatic assigning process of IP of each node of Mesh network internal.
As shown in Figure 1, be the schematic diagram that the present invention is based on the IP distribution system embodiment in the wireless Mesh netword of Ad-hoc.Each network node 10 in the wireless Mesh netword in the present embodiment comprises the first memory cell 15, the second memory cell 14, temporary IP setting unit 11, sounds out packet sending unit 12 and node IP setting unit 13, wherein above-mentioned the first memory cell 15, the second memory cell 14 can be positioned at the Same Physical storage device (for example being positioned at the diverse location of same tables of data) of network node 10 inside, and temporary IP setting unit 11, exploration packet sending unit 12 and node IP setting unit 13 can be integrated into network node 10 and realize by software.Certainly, in actual applications, above-mentioned the first memory cell 15, the second memory cell 14, temporary IP setting unit 11, exploration packet sending unit 12 and node IP setting unit 13 also can realize by the device that is independent of network node 10 and in conjunction with software.
The first memory cell 15 and the second memory cell 14 all are used for the available Class C IP address of the storage networking node place network segment, for example 192.168.1.X(wherein the span of X be [0,255], remove subnet address 0 and broadcast address 255, the scope of the X that network node 10 reality are available is [1,254]).In the present embodiment, the first memory cell 15 is used for memory node IP address, and namely actual allocated is to the IP address of network node 10 uses, and each network node uses a unique node IP address; The second memory cell 14 is used for the storage temporary ip address, namely only carries out the IP address that the address assignment stage uses at network node 10, and unactually distributes to any network node and use.Node IP address and the temporary ip address in the second memory cell 14 in above-mentioned the first memory cell 15 are not overlapping, for example the scope of the node IP address in the first memory cell 15 (being the scope of X) can be [10,200], the scope of the temporary ip address in the second memory cell 14 (being the scope of X) can be [201,240].
Temporary IP setting unit 11 is used for selecting a temporary ip address also this temporary ip address to be configured to the IP address of this network node 10 from the second memory cell 14.When temporary ip address was selected, temporary IP setting unit 11 can adopt random fashion to choose.
Sound out packet sending unit 12 and be used for selecting a node IP address from the first memory cell 15, then create the route requests message (AODV protocol massages) take the node IP address of this selection as destination address and send this route requests message.When node IP address is selected, sound out packet sending unit 12 and can adopt random fashion to choose.
When the node of these network node 10 peripheries receives above-mentioned route requests message, when whether the IP address of judging oneself is identical with destination address in the route requests message, return route feedback message to network node 10, otherwise continue to transmit above-mentioned route requests message.
When node IP setting unit 13 is used for not receiving the route response message in the given time the destination address (souning out the node IP address that packet sending unit 12 is selected from the first memory cell 15) of above-mentioned route requests message is set to the IP address of this network node.
Above-mentioned can comprise also that based on the IP distribution system in the wireless Mesh netword of Ad-hoc is soundd out a time-out count device, node IP setting unit 13 will be soundd out the zero clearing of time-out count device before packet sending unit 12 sends the route requests messages souning out, and make when receiving route feedback message corresponding to route requests message and sound out packet sending unit 12 again create route requests message (this newly-built route requests message is take another node IP address of selecting as destination address) and transmission from the first memory cell 15; When not receiving route feedback message, will sound out the time-out count device add 1 and when the value of this exploration time-out count device reaches set point the destination address in the route requests message be set to the IP address of this network node.
Especially, above-mentioned exploration packet sending unit 12 selects the node IP address (node IP address of namely not souning out) of the non-selected mistake of current network node as the destination address the route requests message from the first memory cell 15 when creating the route requests message.
Especially, above-mentioned based on the IP distribution system in the wireless Mesh netword of Ad-hoc in, in wireless Mesh netword, the same time only have a network node the temporary IP setting unit, sound out packet sending unit and the operation of node IP setting unit.That is to say that each network node divides timing automatically at execution IP, other network nodes in the network must be the normal operation nodes that has obtained the IP address.
In addition, above-mentioned based on also comprising the 3rd memory cell in the IP distribution system in the wireless Mesh netword of Ad-hoc, the 3rd memory cell is used for storing same Class C IP address equally.Store a plurality of IP addresses for gateway (namely as the node of gateway when souning out, from the 3rd memory cell, select the IP address to sound out) in the 3rd memory cell.Not not overlapping for the IP address of gateway and the node IP address in the first memory cell 15, temporary ip address in the second memory cell 14 in above-mentioned the 3rd memory cell.
As shown in Figure 2, be the schematic flow sheet that the present invention is based on the IP distribution method embodiment in the wireless Mesh netword of Ad-hoc.The method may further comprise the steps:
Step S21: network node also is configured to this temporary ip address the IP address of this network node from temporary ip address of the second interval selection, comprise a plurality of temporary ip address between above-mentioned Second Region, namely only carry out the IP address that the address assignment stage uses at network node, and unactually distribute to any network node and use.
Step S22: described network node is the route requests message take this node IP address as destination address from node IP address of the first interval selection and establishment, this first interval comprises a plurality of node IP address, be the IP address that actual allocated is used to network node, each network node uses a unique node IP address.Especially, be positioned at same IP available section and not overlapping between the first interval and Second Region.
Step S23: the IP address that when network node sends the route requests message and do not receive in the given time the route response message destination address in the route requests message node IP address of the first interval selection (among the step S22 from) is set to this network node.
Especially, can be positioned at same IP address table between above-mentioned the first interval and Second Region.And among the step S22, network node is each when creating the route requests message, from the node IP address of the non-selected mistake of the first interval selection current network node destination address as the route requests message.And in same wireless Mesh netword, the same time only has a network node to carry out the above-mentioned IP distribution method.
As shown in Figure 3, be the schematic flow sheet that the embodiment of node IP address (step S23) is set among Fig. 2, it specifically comprises:
Step S231: will sound out the zero clearing of time-out count device.
Step S232: network node sends the route requests message, thereby initiates the path finding process.
Step S233: when this network node receives route corresponding to route requests message feedback message, return step S22, reselect a node IP address by network node and create the route requests message; Otherwise execution in step S234.
Step S234: will sound out the time-out count device and add 1.
Step S235: whether the value of judging this exploration time-out count device reaches set point, if reach then execution in step S236 of set point, otherwise returns step S232.
Step S236: the destination address in the network node route requests message (being the node IP address of selecting among the step S22) is set to the IP address of this network node.
In the said method is C class IP section with the IP section, and also comprise in this C class IP section and the first interval, Second Region between nonoverlapping the 3rd interval, comprise a plurality of IP addresses for gateway (be gateway node when carrying out said method, in creating the route requests message from the destination address of IP address of the 3rd interval selection as the route requests message) in the 3rd interval.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. one kind based on the IP distribution system in the wireless Mesh netword of Ad-hoc, it is characterized in that: each network node in the described wireless Mesh netword comprises the first memory cell, the second memory cell, temporary IP setting unit, sounds out packet sending unit and node IP setting unit, wherein: comprise a plurality of node IP address in described the first memory cell, comprise a plurality of temporary ip address in described the second memory cell, node IP address and the temporary ip address in the second memory cell in described the first memory cell are positioned at same IP available section and not overlapping; Described temporary IP setting unit is for the IP address that also this temporary ip address is configured to this network node from temporary ip address of the second memory cell selecting; Described exploration packet sending unit is used for from node IP address of the first memory cell selecting, creates the route requests message take this node IP address as destination address and send described route requests message; The node IP setting unit, described node IP address is set to the IP address of this network node when being used for not receiving the route response message in the given time.
2. according to claim 1 based on the IP distribution system in the wireless Mesh netword of Ad-hoc, it is characterized in that: described IP distribution system also comprises sounds out the time-out count device, and described node IP setting unit will be soundd out the zero clearing of time-out count device before souning out packet sending unit transmission route requests message;
Described node IP setting unit makes the exploration packet sending unit again create the route requests message when receiving the route feedback message of described route requests message and sends; When not receiving route feedback message, described exploration time-out count device added 1 and when the value of this exploration time-out count device reaches set point the destination address in the described route requests message be set to the IP address of this network node.
3. according to claim 1 based on the IP distribution system in the wireless Mesh netword of Ad-hoc, it is characterized in that: described exploration packet sending unit when creating the route requests message, from the node IP address of the non-selected mistake of the first memory cell selecting current network node as destination address.
4. according to claim 1 based on the IP distribution system in the wireless Mesh netword of Ad-hoc, it is characterized in that: in described wireless Mesh netword, only there be temporary IP setting unit, exploration packet sending unit and the operation of node IP setting unit of a network node the same time.
5. according to claim 1 based on the IP distribution system in the wireless Mesh netword of Ad-hoc, it is characterized in that: described IP available section is C class IP section, and also comprise the 3rd memory cell that stores a plurality of IP addresses for gateway in this C class IP section, not overlapping for the IP address of gateway and the node IP address in the first memory cell, temporary ip address in the second memory cell in described the 3rd memory cell.
6. one kind based on the IP distribution method in the wireless Mesh netword of Ad-hoc, it is characterized in that: may further comprise the steps:
(a) network node is configured to the IP address of this network node from temporary ip address of the second interval selection and with this temporary ip address, comprises a plurality of temporary ip address between described Second Region;
(b) described network node is from node IP address of the first interval selection and create route requests message take this node IP address as destination address, described the first interval comprises a plurality of node IP address, is positioned at same IP available section and not overlapping between described the first interval and Second Region;
Described node IP address was set to the IP address of this network node when (c) described network node sent described route requests message and do not receive in the given time the route response message.
7. according to claim 6 based on the IP distribution method in the wireless Mesh netword of Ad-hoc, it is characterized in that: described step (c) comprising:
(c1) will sound out the zero clearing of time-out count device;
(c2) described network node sends described route requests message and return step (b) when this network node receives the route feedback message of described route requests message, otherwise execution in step (c3);
(c3) described exploration time-out count device is added 1 and judge whether the value of this exploration time-out count device reaches set point, if reach then execution in step (c4) of set point, otherwise return step (c2);
(c4) the described node IP address of described network node is set to the IP address of this network node.
8. according to claim 7 based on the IP distribution method in the wireless Mesh netword of Ad-hoc, it is characterized in that: in the described step (b), network node is from the node IP address of the non-selected mistake of the first interval selection current network node.
9. according to claim 6 based on the IP distribution method in the wireless Mesh netword of Ad-hoc, it is characterized in that: in described wireless Mesh netword, the same time only has a network node to carry out described IP distribution method.
10. according to claim 6 based on the IP distribution method in the wireless Mesh netword of Ad-hoc, it is characterized in that: described IP available section is C class IP section, and also comprise in this C class IP section and described the first interval, Second Region between nonoverlapping the 3rd interval, comprise a plurality of IP addresses for gateway in described the 3rd interval.
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| CN104486167A (en) * | 2014-12-31 | 2015-04-01 | 无锡儒安科技有限公司 | Concurrence network performance and network trending direction testing method based on MESH network |
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| CN108616607B (en) * | 2016-12-13 | 2021-08-06 | 中国电信股份有限公司 | Distributed host configuration method and system based on reservation mechanism |
| CN114258043A (en) * | 2020-09-25 | 2022-03-29 | 瑞昱半导体股份有限公司 | Network distribution system and method thereof |
| CN112887756A (en) * | 2021-01-11 | 2021-06-01 | 上海七牛信息技术有限公司 | Multi-input multi-output communication system and method for multimedia micro-service |
| CN112887756B (en) * | 2021-01-11 | 2023-02-07 | 上海七牛信息技术有限公司 | Multi-input multi-output communication system and method for multimedia micro-service |
| CN114585014A (en) * | 2022-03-28 | 2022-06-03 | 南京汉隆科技有限公司 | Wifi function availability testing device and method |
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Application publication date: 20130410 |