CN102801637B - Power line mixes automatic network-building method with radio communication - Google Patents
Power line mixes automatic network-building method with radio communication Download PDFInfo
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Abstract
The invention discloses a kind of power line and mix automatic network-building method with radio communication, adopt power line networking to mix the network that forms topological structure with wireless communication network, carry out networking taking power line channel as the first channel, in the time that power line channel is obstructed, by radio communication channel by equipment network. The invention has the beneficial effects as follows, can intelligence differentiate preferred channels networking, networking speed is fast, and effectively solves the existence of " information island ".
Description
Technical field
The present invention relates to power line and field of wireless communication, relate in particular to a kind of power line and mix with radio communicationAd hoc network method.
Background technology
The networking mode of existing existing power line carries out networking, group in the mode of repeatedly networking, clustering routingNet spee is relatively slow, and its route forms network topology structure in the mode of competing between node, with " can communicate by letter "As the optimal way of networking, can only ensure that the path between this grade of node and superior node is in the brother of nodeOptimum and can not ensure whole topological path communication optimum, although the method for this type can realize normallyCommunicate by letter, and can meet the communicating requirement of narrow band communication, but the inevitable load due to part of nodes,Characteristic impedance variation, signaling bearer scarce capacity and cause the weak node communication shakiness of signal in network topologyFixed problem.
And short-distance wireless communication mode, the impact of climate, environment, electromagnetic interference is very large, deposits at environmentAt the strong object of wave-sucking performance, or exist in the situation in multiple Electromagnetic Launching source, wireless channel will be subject toDisturb.
Existing existing short-distance wireless communication mode is mainly in the transparent transmission mode of " point-to-point " as main. WhereinBetween the equipment of " point-to-point " mode mutually " transparent ", broadcast transmission data each other, exist signal itBetween conflict, radio channel resource waste mutually, the shortcoming such as communication reliability is poor, Information Security is poor. And orderFront existing wireless networking method is fairly simple, and networking is based upon structure backbone on the good basis of communication channelTree net network, forms network topology structure in the mode of competing father node, does at climate, environment, electromagnetismDisturb in the situation of impact, communication can be extremely unstable and be affected networking effect.
The mode that existing power line and the routing mode of wireless combination mainly switch taking double route is as main. FormerHave on the basis of network, if be switched to another kind of communication mode, this side in the obstructed situation of one of them passageFormula not can solve all problems of obstructed " information island " of two kinds of channels.
Summary of the invention
The present invention aims to provide a kind of communication mode group that can solve existing existing power line and wireless combinationThe power line of shortcoming and the sides of wireless mixed networking such as the quality that web frame is single, can not intelligent decision channelFormula.
In order to address the above problem, the present invention proposes a kind of technical scheme, and its content is, a kind of power line withRadio communication is mixed automatic network-building method, adopts power line networking to mix with wireless communication network, composition topologyThe network of structure, is provided with a host node and multiple child node in the network of topological structure, each child node placeBe provided with power circuit by and wireless routing, its networking comprises step,
S1, host node send networking commands, power line carry out networking and by power line channel by each child nodePower circuit by information reporting to host node, wireless telecommunications are carried out networking and by each son of wireless channelThe wireless routing information reporting of node is to host node;
S2, the power line routing table at host node place and wireless routing table are carried out associated, according to power line nodeThe preferred node of mark Automatic-searching in routing table of information and wireless communication node information also forms networking, instituteThe child node of stating on power line channel is preferred node, when the networking of preferred node does not cover associated Hou roadBy table on information time, use radio communication channel by remaining each child node networking;
S3, networking finish, and enter network operation state.
Wherein, described step S1 specifically comprises,
S11, host node is connected in power line networking, and host node is initialized;
S12, power line carry out networking record electricity line routing iinformation, and the wireless mode that reports is carried out networking noteRecord wireless routing information;
Whether S13, determining step S12 finish, if finish, enter next step, if do not finish, return and continueContinuous networking, its determination methods is that collection information has data and sends and feedback, after a upper child node is addedIf certain hour in continue feedback without information and represent that networking finishes, if still have information feedback in certain hour,Represent that networking does not finish.
Wherein, described step S2 specifically comprises,
S21, association are also mated power line routing table and wireless routing table, confirm facility information in LAN;
S22, optimized network structure, by power line node information and wireless communication node information in routing tableThe preferred node of the different Automatic-searchings of mark, described power line node is preferred node;
S23, network node information after step S22 is optimized with described associated after the information of routing table carry out rightRatio, looks into the equipment of seeing if there is and is not added in network, does not add equipment if do not exist, and directly enters stepS25;
If S24 exists un-added equipment, by wireless channel then this equipment is added in networking,Enter step S25;
S25, wait for that other nodes report networking voluntarily, further add the equipment in LAN, its method is,Preset a time threshold, if the stipulated time after a upper child node is added is continued table of feedback without informationShow that networking finishes, preset a time total value, total value represents that networking finishes after arriving at the appointed time.
Wherein, the method for described step S22 is to adopt relatively power line channel signal to noise ratio, comprises that child node is realIn time, intercepts power line channel, obtains noise useless in channel and the signal of being sent by host node and doesRelatively, record current signal to noise ratio numerical value and be converted into rate value, transfer of data will be with this speed and other electricityThe sub node equipment communication of the line of force.
Wherein, the method for described step S23 is when the traffic rate value described in S22 is lower than setting in programFirst threshold is adjusted the signal transmission power of equipment of itself automatically, when adjust transmission power level higher than program inThe Second Threshold of setting and rate value during lower than the first threshold of program setting, record on this power line channelChild node be obstructed node.
Wherein, when described network operation, the equipment that the new equipment adding and network disconnect can report and add voluntarilyEnter networking.
Wherein, the equipment that the equipment of described new interpolation and network disconnect can report the step that adds networking voluntarilyFor,
A1, described host node send routing table maintenance information to each child node router, inquiry child node routeTable equipment on-line information;
Whether a2, described host node router receive the ACK bag of each child node router, if ACKStep a1 is returned in response time delay, if can not normally receive ACK bag, the non-online equipment of mark, entersEnter next step;
A3, according to the non-online equipment of mark, the alternate routing in inquiry host node routing table;
Substitute route if a4 exists, enter step a6, if there is not alternative route, active reporting groupNet joins message, and enters step a5;
If a5 does not receive reply message, return to continuation transmission networking and join message, if receive replyConfirmation message, enters step a6;
Host node routing table in a6, renewal LAN, gets back to network operation state.
Wherein, described wireless while reporting mode to carry out networking, each node is sent out other node address that receiveSend the test packet of setting in program, process of transmitting adopts the mode of conflict avoiding, and each child node is according to connecingThe described packet of receiving compares and calculates packet loss, and result is carried out to classification, and host node is according to receivingResult compare and set network hops, the highest jumping figure level is 8 grades.
Be different from the power line of prior art and the routing mode of wireless combination, power line and wireless combination logicalThe shortcomings such as letter mode networking structure is single, can not intelligent decision channel quality, traffic rate are lower, withTime prior art not can solve the problem of " information island ", the invention has the beneficial effects as follows, adoptBy power line and wireless mode of mixing automatic network-building, can differentiate automatically optimum channel and make one's options,Make networking speed fast, power line and wireless automatic network-building respectively, then by associated routing table coupling, with electricityThe line of force is first communication channel, in the time that power line channel can not be connected to all devices and carries out networking, by wirelessNetworking is carried out in networking, forms one taking electric line network as main, and wireless network is the mixing of auxiliary comprehensive coveringAutomatic network-building network, has solved " information island " problem like this.
Brief description of the drawings
Fig. 1 is power line of the present invention and the wireless FB(flow block) that mixes automatic network-building method;
Fig. 2 is that new interpolation equipment of network operation stage of the present invention and communication disruption equipment add in networking automaticallyFB(flow block);
Fig. 3 is the schematic diagram of a kind of concrete use embodiment of the present invention.
Detailed description of the invention
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, below in conjunction withEmbodiment also coordinates accompanying drawing to be explained in detail.
Refer to Fig. 1, Fig. 2 and Fig. 3, a kind of power line of present embodiment mixes automatic group with radio communicationNetwork method, adopts power line networking to mix with wireless communication network, the network of composition topological structure, topology knotIn the network of structure, be provided with a host node and multiple child node, each child node place be provided with power circuit by and nothingCircuit by, its networking comprises step,
S1, host node send networking commands, power line carry out networking and by power line channel by each child nodePower circuit by information reporting to host node, wireless telecommunications are carried out networking and by each son of wireless channelThe wireless routing information reporting of node is to host node; That is to say, each child node can have power circuitBy and wireless routing, on power line and the wireless routing iinformation that can collect by channel separately respectivelyThe host node of reporting for work, the host node here refers to the main equipment in the network of topological structure, each child node refers to opens upFlutter the branch equipment in the network of structure.
S2, the power line routing table at host node place and wireless routing table are carried out associated, according to power line nodeThe preferred node of mark Automatic-searching in routing table of information and wireless communication node information also forms networking, thisSample will all be recorded in associated route by all child node information that can connect networking in topological structure networkOn table, the child node on described power line channel is preferred node, when the networking of preferred node does not cover passWhen information in routing table after connection, use radio communication channel by remaining each child node networking; In this realityExecuting the process of associated routing table in example is, (1) sets up the associated routing table at host node place; (2) deposit electric power inThe network mark of line routing table, wireless routing table, address information; (3) find existence electricity in wireless routing tableThe node of line of force routing table; (4) write connective marker, set up power line routing table identical with wireless routing tableThe association of node; (5) finish association. So just can be by the routing table after association by the difference of mark,The preferred node of Automatic-searching, in the present invention, the channel of described power line is preferred channel, is first with electric powerLine channel network, when the equipment in power line networking do not comprise when equipment in relevant routing table, makeWith radio communication channel by the equipment group of remaining each child node in networking.
S3, networking finish, and enter network operation state.
Be different from the power line of prior art and the routing mode of wireless combination, power line and wireless combination logicalThe shortcomings such as letter mode networking structure is single, can not intelligent decision channel quality, traffic rate are lower, withTime prior art not can solve the problem of " information island ", the invention has the beneficial effects as follows, adoptBy power line and wireless mode of mixing automatic network-building, can differentiate automatically optimum channel and make one's options,Make networking speed fast, power line and wireless automatic network-building respectively, then by associated routing table coupling, with electricityThe line of force is first communication channel, in the time that power line channel can not be connected to all devices and carries out networking, by wirelessNetworking is carried out in networking, forms one taking electric line network as main, and wireless network is the mixing of auxiliary comprehensive coveringAutomatic network-building network, has solved " information island " problem like this.
In the present embodiment, described step S1 comprises,
S11, host node is connected in power line networking, and host node is initialized;
S12, power line carry out networking record electricity line routing iinformation, and the wireless mode that reports is carried out networking noteRecord wireless routing information;
Whether S13, determining step S12 finish, if finish, enter next step, if do not finish, return and continueContinuous networking, its determination methods is that collection information has data and sends and feedback, after a upper child node is addedIf certain hour in continue feedback without information and represent that networking finishes, if still have information feedback in certain hour,Represent that networking does not finish.
In the present embodiment, described step S2 specifically comprises,
S21, association are also mated power line routing table and wireless routing table, confirm facility information in LAN;
S22, optimized network structure, by power line node information and wireless communication node information in routing tableThe preferred node of the different Automatic-searchings of mark, described power line node is preferred node;
S23, network node information after step S22 is optimized with described associated after the information of routing table carry out rightRatio, looks into the equipment of seeing if there is and is not added in network, does not add equipment if do not exist, and directly enters stepS25;
If S24 exists un-added equipment, by wireless channel then this equipment is added in networking,Enter step S25;
S25, wait for that other nodes report networking voluntarily, further add the equipment in LAN, its method is,Preset a time threshold, if the stipulated time after a upper child node is added is continued table of feedback without informationShow that networking finishes, preset a time total value, after arriving at the appointed time, represent that networking finishes.
In the present embodiment, the method for described step S22 is to adopt relatively power line channel signal to noise ratio, comprisesChild node is intercepted power line channel in real time, obtains noise useless in channel and is sent by host nodeSignal make comparisons, record current signal to noise ratio numerical value and be converted into rate value, transfer of data will be with this speedCommunicate by letter with the sub node equipment of other power lines; The method of described step S23 is when the communication speed described in S22Rate value is adjusted the signal transmission power of equipment of itself automatically lower than the first threshold of setting in program, work as adjustmentTransmission power level is higher than the Second Threshold of setting in program and rate value during lower than the first threshold of program setting,The child node recording on this power line channel is obstructed node. In the process of above-mentioned adjustment speed, if currentNode SNR value, lower than the 3rd threshold value of setting in program, is recorded as " communicating by letter bad ", and sends to seek and look intoJoin, make SNR value with other nodes and mate, if there is new node coupling to establish the link with new node, otherwise protectHold original link.
In the present embodiment, when described network operation, the equipment that the new equipment adding and network disconnect can be certainlyRow reports and adds networking, also just says, after power line and radio communication mixed networking finish, if add in networkEnter new equipment, or the network of closing in original network opens, can add in network.
In the present embodiment, the equipment that the equipment of described new interpolation and network disconnect can report voluntarily and add groupNet step be,
A1, described host node send routing table maintenance information to each child node router, inquiry host node routeTable equipment on-line information;
Whether a2, described host node router receive the ACK bag of each child node router, if ACKStep a1 is returned in response time delay, if can not normally receive ACK bag, the non-online equipment of mark, entersEnter next step;
A3, according to the non-online equipment of mark, the alternate routing in inquiry host node routing table;
Substitute route if a4 exists, enter step a6, if there is not alternative route, active reporting groupNet joins message, and enters step a5;
If a5 does not receive reply message, return to continuation transmission networking and join message, if receive replyConfirmation message, enters step a6;
Host node routing table in a6, renewal LAN, gets back to network operation state.
In the present embodiment, described wireless while reporting mode to carry out networking, each node is to other joints that receiveDot address sends the test packet of setting in program, and process of transmitting adopts the mode of conflict avoiding, each son jointPoint compares and calculates packet loss according to the described packet receiving, and result is carried out to classification, host nodeCompare and set network hops according to the result of receiving, the highest jumping figure level is 8 grades, passes through like thisIntellectual analysis bit error rate situation, analyzes preferred channels, can realize and automatically skipping a grade and frequency conversion, dodges external interference,Increase networking success rate.
The present invention, in concrete use, as shown in Figure 3, is the networking of a topological structure, power line andRadio communication networking simultaneously and association, obtain all facility informations, and then optimized network structure is preferentialWith power line channel constructing communication network (as A, B, C, D, G group), host node is passed through in the data interaction between groupSupervisory communications. After optimized network structure, equipment component is isolation etc. mutually because signal attenuation is large, between power lineReason cannot be passed through power line networking, and as A5, E1, F group, these connectionless equipment become " letterBreath isolated island " be present in this device network, the networking equipment of the present invention's design possesses power line and nothing simultaneouslyThe function of line networking, therefore, these equipment as " information island " in power line channel can pass through nothingLine connection enters in this device network: A5 is connected to A4 by wireless interpolation, and E1 connects by wireless interpolationTo host node, then pass through power line networking as all the other equipment of relay connection and E group, F group is at power lineSeparate on channel, be all connected on host node by wireless networking, so just formed one withPower line channel is main, and wireless channel is auxiliary mixed networking network.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every profitThe equivalent structure of doing by description of the present invention and accompanying drawing content or the conversion of equivalent flow process, or directly or indirectly transportBe used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. power line mixes an automatic network-building method with radio communication, it is characterized in that: adopt power line groupNet mixes the network that forms topological structure with wireless communication network, be provided with a host node and many in topological networkIndividual child node, each child node place be provided with power circuit by and wireless routing, its networking comprises step,
S1, host node send networking commands, power line carry out networking and by power line channel by each child nodePower circuit by information reporting to host node, radio communication is carried out networking and by radio communication channelThe wireless routing information reporting of each child node is to host node;
S2, the power line routing table at host node place and wireless routing table are carried out associated, according to power line nodeThe preferred node of mark Automatic-searching in routing table of information and wireless communication node information also forms networking, instituteThe child node of stating on power line channel is preferred node, when the networking of preferred node does not cover associated Hou roadBy table on information time, use radio communication channel by remaining each child node networking;
Described step S2 specifically comprises,
S21, association are also mated power line routing table and wireless routing table, confirm facility information in LAN;
S22, optimized network structure, by power line node information and wireless communication node information in routing tableThe preferred node of the different Automatic-searchings of mark, described power line node is preferred node;
S23, network node information after step S22 is optimized with described associated after the information of routing table carry out rightRatio, looks into the equipment of seeing if there is and is not added in network, does not add equipment if do not exist, and directly enters stepS25；
If there is un-added equipment in S24, by radio communication channel, this equipment is added in networking,Then enter step S25;
S25, wait for that other nodes report networking voluntarily, further add the equipment in LAN, its method is,Preset a time threshold, if the stipulated time after a upper child node is added is continued table of feedback without informationShow that networking finishes, preset a time total value, total value represents that networking finishes after arriving at the appointed time;
S3, networking finish, and enter network operation state.
2. power line according to claim 1 mixes automatic network-building method with radio communication, and its feature existsSpecifically comprise in, described step S1,
S11, host node is connected in power line networking, and host node is initialized;
S12, power line carry out networking record electricity line routing iinformation, and the wireless mode that reports is carried out networking noteRecord wireless routing information;
Whether S13, determining step S12 finish, if finish, enter next step, if do not finish, return and continueContinuous networking, its determination methods is that collection information has data and sends and feedback, after a upper child node is addedRepresent that networking finishes if continue feedback without information in certain hour, if still have information feedback in certain hour,Represent that networking does not finish.
3. power line according to claim 1 mixes automatic network-building method with radio communication, and its feature existsIn, the method for described step S22 is to adopt relatively power line channel signal to noise ratio, comprises that child node is in real time to electricityLine of force channel is intercepted, and obtains noise useless in channel and the signal of being sent by host node and by the twoMake comparisons, record current signal to noise ratio numerical value and be converted into rate value, transfer of data will be with this speed and otherThe sub node equipment communication of power line.
4. power line according to claim 3 mixes automatic network-building method with radio communication, and its feature existsIn, the method for described step S23 be when the rate value described in S22 lower than the first threshold of setting in programAutomatically adjust the signal transmission power of equipment of itself, when adjust that transmission power level sets in higher than program secondThreshold value and rate value are during lower than the first threshold of program setting, and the child node recording on this power line channel isObstructed node.
5. mix automatic network-building method according to the power line described in claim 1-4 any one with radio communication,It is characterized in that, when described network operation, the equipment that the new equipment adding and network disconnect can report voluntarilyAdd networking.
6. power line according to claim 5 mixes automatic network-building method with radio communication, and its feature existsIn, the equipment that the equipment of described new interpolation and network disconnect can report voluntarily and add the step of networking to be,
A1, described host node send routing table maintenance information to each child node router, inquiry host node routeTable equipment on-line information;
A2, judge whether described host node routing table equipment receives the ACK bag of each child node router,If step a1 is returned in ACK time delay, if can not normally receive ACK bag, mark is non-onlineEquipment, enters next step;
A3, according to the non-online equipment of mark, the alternate routing in inquiry host node routing table;
Substitute route if a4 exists, enter step a6, if there is not alternative route, active reporting groupNet joins message, and enters step a5;
If a5 does not receive reply message, return to continuation transmission networking and join message, if receive replyConfirmation message, enters step a6;
Host node routing table in a6, renewal LAN, gets back to network operation state.
7. power line according to claim 2 mixes automatic network-building method with radio communication, and its feature existsIn, described wireless while reporting mode to carry out networking, each node sends programs to other node address that receiveThe test packet of interior setting, process of transmitting adopts the mode of conflict avoiding, and each child node basis receivesDescribed packet compares and calculates packet loss, and result is carried out to classification, and host node is according to the result of receivingCompare and set network hops, the highest jumping figure level is 8 grades.
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| CN103873112A (en) * | 2014-03-04 | 2014-06-18 | 北京世壮物联科技有限公司 | Intelligent power line carrier synchronous control method |
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| CN107018582A (en) * | 2017-04-18 | 2017-08-04 | 深圳市慧联通信技术有限公司 | A kind of meter network-building method and its system |
| CN107613484A (en) * | 2017-09-28 | 2018-01-19 | 灵拓智联（厦门）网络科技有限公司 | Wireless self-organizing network nodes and the method using its rapid deployment wireless self-networking |
| CN108900269B (en) * | 2018-06-08 | 2021-02-02 | 华北电力大学（保定） | Error rate performance analysis method of wireless and power line dual-medium cooperative communication system |
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