CN103051359A - Method for binding slave nodes with master nodes and unit transformer power supply area distinguishing method - Google Patents
Method for binding slave nodes with master nodes and unit transformer power supply area distinguishing method Download PDFInfo
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Abstract
The invention provides a method for binding slave nodes with master nodes and a unit transformer power supply area distinguishing method; the unit transformer power supply area distinguishing method comprises the following steps that the slave nodes are bound to the master nodes, and the slave nodes report a meter archive to the master nodes; the master nodes actively report the meter archive to a main station; and the main station acquires the unit transformer power supply area to which the slave nodes belong through the meter archive. According to the method, when all the master nodes receive a same carrier information frame, the slave nodes can be bound to the master nodes effectively by comparing the relay times and signal intensity; in addition, the binding process of the slave nodes comprises a plurality of times of binding application, the master nodes with the most priority times are selected for binding, so that the carrying time-varying characteristic of a power line can be reliably responded to, and the unit transformer area distinguishing accuracy is greatly improved; networks are grouped according to the relay depth, so that carrier sense multiple access with collision avoidance (CSMA/CA) conflicts are effectively reduced, and the network communication efficiency is improved; and the networks quickly complete the binding of the slave nodes due to a follow-up binding strategy, so that the problem that the unit transformer area distinguishing speed is slow is effectively solved.
Description
Technical field
The present invention relates to the power line communication technology field, relate in particular to method and the trivial separating method of platform from the node binding host node.
Background technology
The communication standard of AMRS residential quarter low-pressure section mainly contains the power line carrier mode, the power line carrier mode is a kind of method of utilizing power line transmission signals, AMRS in the power line carrier mode as communication standard utilizes low-tension network as signal channel, electrical network itself is not done any change, do not take electric power system any resource in addition, system's gross investment is significantly less than the collection of domestic other type and copies product, easily maintenance of system's operation, and integrated cost is low.
Particularly, power line carrier communication refers to the transmission of settling signal on power line, interconnected between the platform district, signal can influence each other, and for example, the signal that the node N1 in platform district 1 sends can be transferred among the concentrator D2 in platform district 2, equally, the signal that the node N2 in platform district 2 sends can be transferred among the concentrator D1 in platform district 1, so just can't determine which platform district node N1 belongs to, and can't determine equally which platform district N2 belongs to.Above-mentioned district refers to the power supply area of a certain transformer, and concentrator refers to the concentrator carrier module, is host node, and node N1, N2 are collector carrier module/carrier wave meter carrier module, for from node.Be very important and in fact can distinguish accurately the platform district, for example be conducive to improve the success rate of checking meter; Assist power department provides reliable reference for the generaI investigation of scene business; For computer board district line loss exactly provide according to etc.Yet, do not have at present a kind of method can effectively determine from the platform district of node and belong to.
Summary of the invention
In view of this, the invention provides method and the trivial separating method of platform from the node binding host node, in order to solve the problem that effectively to determine from the platform district ownership of node.Technical scheme is as follows:
A kind of method from the node binding host node comprises:
(11) the binding application sends binding application information frame from node, has at least a host node to receive this binding application information frame; The binding application information that described each host node will be received the frame relay number of times of binding application information frame and the signal strength signal intensity of the binding application information frame received is put into is separately replied frame; Described each host node sends respectively the binding application information and replys frame to described binding application from node;
(12) described binding application is replied the signal strength signal intensity that each host node of frame recording is received frame relay number of times and the binding application information frame of receiving of binding application information frame from node according to each binding application information of receiving;
(13) described binding application is received the frame relay number of times of binding application information frame and the optimum host node of the definite binding application of signal strength signal intensity of the binding application information frame of receiving from node according to each host node:
If each host node receives that the frame relay number of times of binding application information frame is not identical, receive that then the host node of the frame relay number of times minimum of binding application information frame is the optimum host node of binding application; If each host node receives that the frame relay number of times of binding application information frame is identical, the host node of the signal strength signal intensity maximum of the binding application information frame of then receiving is the optimum host node of binding application;
(14) described binding application applies for that from node to described binding optimum host node sends the binding acknowledgement frame, so that the binding application is applied on the optimum host node to binding from node binding.
Described step (13) also comprises before: described binding application sends the binding application from node to each host node that sends binding application information answer frame and replys acknowledgement frame, if described host node is received this frame, then execution in step (13) and step (14); If described host node is not received this frame in setting-up time, then repeat following steps by setting number of repetition:
Do not receive that the binding application information replys that the host node of acknowledgement frame will be received the frame relay number of times of the binding application information frame that described binding application sends from node and the signal strength signal intensity of the binding application information frame received puts into that the binding application information is replied frame and send the binding application information to described binding application from node replys frame.
In the described step (14), the optimum host node of this binding application is recorded in the binding application when node determines the optimum host node of binding application;
Described step (14) also comprises before:
Repeating step (11) is to (13), until the number of times that host node is binding applies for optimum host node finishes this binding greater than set point number;
Described binding application is selected the maximum host node binding of preferential number of times, then execution in step (14) from node.
Described binding application sends before the binding application information frame from node, comprise that also host node divides into groups to network according to the relaying degree of depth, binding is to initiate from the nearest group of host node by initiating from host node group farthest at last, and described binding application is from host node group farthest from node.
Described binding application between node and the host node from node for monitoring from node, described supervision is adopted follow-up strategy to follow the binding application from node and is bound from node, its binding procedure is:
Described binding application monitors from node to monitor the signal strength signal intensity that this frame also records frame relay number of times He this frame of receiving this frame after sending binding application information frame from node;
Described supervision monitors binding application information that host node sends from node and replys handover number and signal strength signal intensity the content frame that obtains this frame behind the frame;
Described supervision monitors the binding acknowledgement frame from node, judges whether to satisfy in following two conditions any one, if satisfy, then follows on the host node that the binding application binds to the binding application from node from node binding:
(1) described supervision receives that from node the frame relay number of times of binding application information frame is less than replying the handover number that obtains the content frame of frame from the binding application information;
(2) described supervision receives that from node the frame relay number of times of binding application information frame equals to reply the handover number that obtains the content frame of frame from the binding application information, and the signal strength signal intensity that monitors the binding application information frame of receiving from node is greater than replying the signal strength signal intensity of obtaining the content frame of frame from the binding application information;
If do not satisfy any one in above-mentioned two conditions, then described supervision enters monitoring or competition binding application status from node.
Described binding by host node power on, host node change MAC Address or initiate from the mode that node powers on.
The described transmission in the mode of broadcasting from node bound the application information frame.
Described binding application information is replied frame and is adopted the CSMA/CA mode to send.
A kind of trivial separating method comprises: will be from the node binding to the host node; From node its table meter archives are reported host node; Host node reports main website with described table meter archives, and described host node has unique mailing address, and the table meter archives that it reports namely belong to the platform district at this host node place; Main website receives that described table meter archives just can learn the described platform district that belongs to from node and described table meter archives.
Provided by the invention from the node binding host node method and and the trivial separating method of platform, when each host node receives same information frame, by each host node being received the frame relay number of times of same information frame and the comparison of signal strength signal intensity, can be effectively with on from the node binding to the host node, the main website of AMRS just can determine the platform district that belongs to from node by the table meter archives of host node active reporting.In addition, from the binding procedure of node, comprise binding procedure to apply repeatedly, selected the maximum host node binding of preferential number of times, therefore can tackle reliably the characteristic of power line carrier time variation, so that trivial minute accuracy rate of platform improves greatly; According to the relaying degree of depth network is divided into groups, effectively must reduce the CSMA/CA conflict, improved network service efficient; Follow binding strategy so that network is finished rapidly the binding of node, effectively solved the slow problem of the trivial component velocity of platform.
Description of drawings
The flow chart of the trivial separating method of platform of the power line communication that Fig. 1 provides for the embodiment of the invention one;
The flow chart of the method from the node binding to the host node that Fig. 2 provides for the embodiment of the invention one;
Many host nodes that Fig. 3 provides for the embodiment of the invention one receive the schematic diagram of same information frame process;
Many host nodes that Fig. 4 provides for the embodiment of the invention one receive the schematic diagram of same information frame process;
The realization that Fig. 5 provides for the embodiment of the invention one powers on from node and initiates the flow chart of binding;
The flow chart of the trivial separating method of platform of the power line communication that Fig. 6 provides for the embodiment of the invention two;
The flow chart of the method from the node binding to the host node that Fig. 7 provides for the embodiment of the invention two;
Network packet and binding procedure schematic diagram that Fig. 8 provides for the embodiment of the invention two;
The host node that Fig. 9 provides for the embodiment of the invention two powers on and initiates the flow chart of binding;
The flow chart of the trivial separating method of platform of the power line communication that Figure 10 provides for the embodiment of the invention three;
The flow chart of the method from the node binding to the host node that Figure 11 provides for the embodiment of the invention three;
The supervision that Figure 12 provides for the embodiment of the invention three is followed the binding procedure schematic diagram from node;
The flow chart that Figure 13 initiates binding for the host node change MAC Address that the embodiment of the invention three provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment one
Referring to Fig. 1, the flow chart for the trivial separating method embodiment of the platform of power line communication of the present invention comprises:
(11) will be from the node binding to the host node;
(12) from node its table meter archives are reported host node;
(13) host node will be shown meter archives active reporting to main website, and host node has unique mailing address, and the table meter archives that it reports namely belong to the platform district at this host node place;
(14) main website receives that showing the meter archives just can learn the platform district that belongs to from node and table meter archives.
Because there is the data match information from information He Tai district, address of node in main website, so the table meter archives that report according to host node of main website just can obtain the platform district attaching information from node.
Process from the node binding to the host node is seen also the flow chart of Fig. 2, binding procedure comprises:
S101: the binding application sends binding application information frame from node;
S102: the host node of receiving binding application information frame will be received the frame relay number of times of binding application information frame and the signal strength signal intensity of the binding application information frame received is put into the binding application information and replied frame, and host node sends the binding application information and replys frame to the binding application from node;
S103: the binding application is replied the signal strength signal intensity that the frame recording host node is received the frame relay number of times of binding the application information frame and the binding application information frame of receiving from node according to the binding application information of receiving;
S104: the binding application sends the binding application and replys acknowledgement frame from node to host node;
S105: the binding application information answer frame of whether receiving other host node in setting-up time is judged in the binding application from node, if so, then change step S103 over to; If not, then execution in step S106 and subsequent step;
S106: bind application and receive the frame relay number of times of binding application information frame and the optimum host node of signal strength signal intensity judgement binding of the binding application information frame of receiving from node according to each host node:
S107: binding is applied for sending the binding acknowledgement frame from node to the optimum host node of binding, so that the binding application is from node binding to binding on the optimum host node.
The optimum host node of binding is judged in binding application from node foundation as: if each host node receives that the frame relay number of times of binding application information frame is not identical, receive that then the host node of frame relay number of times minimum of binding application information frame is for binding optimum host node; If each host node receives that the frame relay number of times of binding application information frame is identical, the host node of the signal strength signal intensity maximum of the binding application information frame of then receiving is the optimum host node of binding.For example, two platform districts are arranged, signal can seal in mutually the other side, and platform district 1 has three from node, and platform district 2 has four from node, send information frame from node N11, after signal is sent by N11, through from node N12 and N13, arrive again host node 1 first, through arriving host node 2 after transformer 1 and transformer 2 decay, arrive at last from node N21, N23, N22 and N24.Host node 1 and host node 2 are all received the same information frame that N11 sends, suppose that host node 1 receives that the frame relay number of times of information frame is R1, host node 2 receives that the frame relay number of times of information frame is R2, host node 1 receives that the signal strength signal intensity of information frame is S1, host node 2 receives that the signal strength signal intensity of information frame is S2, see also Fig. 3, among Fig. 3, R1=1, R2=2, at this moment, host node 1 and host node 2 are not the information that same handover number receives, and signal strength signal intensity has not had comparativity, because R1＜R2, can judge N11 and belong to host node, namely N11 will be tied to host node 1.See also Fig. 4, among Fig. 4, R1=2, R2=2, can't judge which node N11 belongs to handover number this moment, yet, because the signal of transformer after for carrier modulation has extremely strong attenuation characteristic, S1＞S2 can judge N11 according to S1＞S2 and belong to host node 1, and namely N11 will be tied to host node 1.
Also comprise before the described step S105: judge whether host node receives the binding application answer acknowledgement frame that the binding application sends from node in setting-up time, if receive, then execution in step S105 and subsequent step; If do not receive, then repeat following steps by setting number of repetition: host node will receive that the signal strength signal intensity of the frame relay number of times of the binding application information frame that the binding application sends from node, the binding application information frame received puts into the binding application information and reply frame, and send to bind application from node and to bind application information answer frame.In the present embodiment, setting number of repetition is 3 times.
In the present embodiment, the binding application sends binding application information frame from node in the mode of broadcasting, and host node adopts the CAMA/CA mode to send the binding application information and replys frame.
In the present embodiment, binding is to initiate by the mode that powers on from node, when powering on from node, might not receive the beginning bind command that host node sends, so need to initiatively initiate bind request from node.If main and subordinate node powers on simultaneously, initiate the binding dismission order that bind request need to be later than host node from node; If a plurality ofly power on simultaneously from node, from needing to do conflict avoiding between the node.
The process of initiating to bind application by the mode that powers on from node is as shown in Figure 5:
(101) power on from node;
(102) time-delay T
1+ Δ t
1
(103) check whether network is idle, if not, execution in step (104) then; If so, execution in step (105) then;
(104) random delay Δ t
1, execution in step (103) and subsequent step;
(105) begin to carry out binding procedure.
The present embodiment does not limit mode that binding initiates for to power on from node, bind also can by host node power on or host node more the mode of change of address initiate.
Because power line network is public same transmission medium, each node can not send information at synchronization, therefore in the present embodiment, adopts CSMA/CA to reduce network conflict.
In the trivial separating method of the platform of power line communication provided by the invention, when each host node receives same information frame, the comparison of the frame relay number of times by host node being received same information frame and the signal strength signal intensity of this frame, can be effectively with on from the node binding to the host node, main website just can determine platform district ownership from node by the table meter archives of host node active reporting.
Embodiment two
The flow chart of the trivial separating method of platform of the power line communication that the embodiment of the invention two provides as shown in Figure 6, the trivial separating method of platform may further comprise the steps:
(21) will be from the node binding to the host node;
(22) from node its table meter archives are reported host node;
(23) to main website, described host node has unique mailing address to host node with described table meter archives active reporting, and the table meter archives that it reports namely belong to the platform district at this host node place;
(24) main website receives that described table meter archives just can learn the described platform district that belongs to from node and described table meter archives.
Because there is the data match information from information He Tai district, address of node in main website, so the table meter archives that report according to host node of main website just can obtain the platform district attaching information from node.
In the above-mentioned steps process from the node binding to the host node is seen also the flow chart of Fig. 7, binding procedure comprises:
S201: the binding application sends binding application information frame from node;
S202: the host node of receiving binding application information frame will be received the frame relay number of times of binding application information frame and the signal strength signal intensity of the binding application information frame received is put into the binding application information and replied frame, and host node sends the binding application information and replys frame to the binding application from node;
S203: the binding application is replied the signal strength signal intensity that the frame recording host node is received the frame relay number of times of binding the application information frame and the binding application information frame of receiving from node according to the binding application information of receiving;
S204: the binding application sends the binding application and replys acknowledgement frame from node to host node;
S205: the binding application information answer frame of whether receiving other host node in setting-up time is judged in the binding application from node, if so, then change step S203 over to; If not, then execution in step S206 and subsequent step;
S206: bind application and receive the signal strength signal intensity judgement binding optimum host node of application of the frame relay number of times of binding application information frame and the binding application information frame of receiving and record the optimum host node of this binding application according to each host node from node;
S207: judge whether a host node for the number of times of the optimum host node of binding application greater than set point number, if so, then execution in step S208 and subsequent step; If not, then change step S201 over to;
S208: the binding application selects the maximum binding of preferential number of times to apply for that optimum host node is that the final optimum host node of binding is bound from node;
S209: optimum host node sends the binding acknowledgement frame from node to this final binding in the binding application, so that the binding application is bound on the optimum host node to this from node binding.
The optimum host node of binding application is judged in binding application from node foundation as: if each host node receives that the handover number of binding application information frame is not identical, receive that then the host node of the frame relay number of times minimum of binding application information frame is applied for optimum host node for binding; If each host node receives that the frame relay number of times of binding application information frame is identical, the host node of the signal strength signal intensity maximum of the binding application information frame of then receiving is the optimum host node of binding application.
Further, if repeatedly send binding application information frame from node, then select the maximum host node of preferential number of times to bind, the host node that namely preferential number of times is maximum is the optimum host node of binding.
Also comprise before the described step S205: judge whether host node receives the binding application answer acknowledgement frame that the binding application sends from node, if receive, then execution in step S205 and subsequent step; If do not receive, then repeat following steps by setting number of repetition: do not receive that the binding application information replys that the host node of acknowledgement frame will be received the frame relay number of times of the binding application information frame that the binding application sends from node, the signal strength signal intensity of the binding application information frame received is put into the binding application information and replied frame, and send the binding application information to described binding application from node and reply frame.In the present embodiment, setting number of repetition is 3 times.
In the present embodiment, the binding application sends binding application information frame from node in the mode of broadcasting, and host node adopts the CAMA/CA mode to send the binding application information and replys frame.
Because power line network is public same transmission medium, each node can not send information at synchronization, therefore usually adopt CSMA/CA to reduce network conflict, but because the speed ratio of power line carrier communication is lower, CAMS/CA efficient when nodes is larger is very low simultaneously, therefore adopts in the present embodiment extra network packet to cooperate CSMA/CA to reduce network conflict.The present embodiment divides into groups to network according to the relaying degree of depth, see also Fig. 8, Fig. 8 is network packet and from node binding process schematic diagram, suppose that host node x is 6 grades of junction networks, host node x will be divided into 6 grades to network, then binding is N5, N4, N3, N2 by initiating from host node x group N6 farthest successively, is at last to initiate from the nearest group N1 of host node x.Like this CSMA/CA number of collisions is reduced by 6 times effectively, thereby improved binding speed.
In the present embodiment, binding is to initiate by the mode that host node powers on, and after host node powers on, need at first remove network bound information, and then send again bind command.If a plurality of host nodes power on simultaneously, need to do conflict avoiding between the host node.
By host node power on initiate binding process as shown in Figure 9:
(201) power on from node;
(202) time-delay T
2+ Δ t
2
(203) check whether network is idle, if so, execution in step (204) then; If not, execution in step (207) then;
(204) mode with repeatedly broadcasting sends network dismission order;
(205) with repeatedly broadcasting mode send begin the binding;
(206) system enters normal condition;
(207) random delay Δ t
2, execution in step (203) and subsequent step.
The initiation mode that the present embodiment does not limit binding is that host node powers on, and binding also can by the initiation that powers on from node, also can more be initiated the change of address by host node.If the network bound that host node powers on or host node change MAC Address is initiated, network at first carries out network packet, and binding is to initiate from the nearest group of host node by initiating first from host node group farthest at last.
In the trivial separating method of the platform of power line communication provided by the invention, when each host node receives same information frame, the comparison of the frame relay number of times by each host node being received same information frame and the signal strength signal intensity of received breath frame, can be effectively with on from the node binding to the host node, main website just can determine platform district ownership from node by the table meter archives of host node active reporting.In addition, from the binding procedure of node, comprise binding procedure to apply repeatedly, selected the maximum host node binding of preferential number of times, therefore can tackle reliably the characteristic of power line carrier time variation, so that trivial minute accuracy rate of platform improves greatly; According to the relaying degree of depth network is divided into groups, effectively must reduce the CSMA/CA conflict, improved network service efficient.
Embodiment three
The flow chart of the trivial separating method of platform of the power line communication that the embodiment of the invention three provides as shown in figure 10, the trivial separating method of platform may further comprise the steps:
(31) will be from the node binding to the host node;
(32) from node its table meter archives are reported host node;
(33) host node reports main website with described table meter archives, and described host node has unique mailing address, and the table meter archives that it reports namely belong to the platform district at this host node place;
(34) main website receives that described table meter archives just can learn the described platform district that belongs to from node and described table meter archives.
Because there is the data match information from information He Tai district, address of node in main website, so the table meter archives that report according to host node of main website just can obtain the platform district attaching information from node.
In the above-mentioned steps process from the node binding to the host node is seen also the flow chart of Figure 11, binding procedure comprises:
S301: the binding application sends binding application information frame from node;
S302: the host node of receiving binding application information frame will be received the frame relay number of times of binding application information frame and the signal strength signal intensity of the binding application information frame received is put into the binding application information and replied frame, and host node sends the binding application information and replys frame to the binding application from node;
S303: the binding application is replied the signal strength signal intensity that the frame recording host node is received the frame relay number of times of binding the application information frame and the binding application information frame of receiving from node according to the binding application information of receiving;
S304: the binding application sends the binding application and replys acknowledgement frame from node to host node;
S305: the binding application information answer frame of whether receiving other host node in setting-up time is judged in the binding application from node, if so, then change step S303 over to; If not, then execution in step S306 and subsequent step;
S306: bind application and receive the signal strength signal intensity judgement binding optimum host node of application of the frame relay number of times of binding application information frame and the binding application information frame of receiving and record the optimum host node of this binding application according to each host node from node;
S307: judge whether a host node for the number of times of the optimum host node of binding application greater than set point number, if so, then execution in step S308 and subsequent step; If not, then change step S301 over to;
S308: the binding application selects the maximum binding of preferential number of times to apply for that optimum host node is that the final optimum host node of binding is bound from node;
S309: optimum host node sends the binding acknowledgement frame from node to this final binding in the binding application, so that the binding application is bound on the optimum host node to this from node binding.
In the present embodiment, binding application between node and the host node from node for monitoring from node, monitor to adopt from node and follow binding strategy and finish binding, its implementation procedure is as follows:
A301: monitor to be in monitored state from node, the binding application sends binding application information frame from node, monitors from node to monitor binding application information frame, and frame relay number of times and the signal strength signal intensity of this frame received in record;
A302: host node is applied for replying frame from node transmission binding application information to binding, monitors to monitor this frame from node, obtains handover number and signal strength signal intensity in the content frame of binding application information answer frame;
A303: when supervision monitored binding acknowledgement frame from node to host node that bind application transmission from from node, supervision judged whether to follow to bind from node and applies for binding from node, and its decision condition is:
Decision condition 1: monitor from node and receive that the frame relay number of times of binding application information frame is less than replying the handover number that obtains the content frame of frame from this host node binding application information;
Decision condition 2: monitor from node and receive that the frame relay number of times of binding application information frame equals to reply the handover number that obtains the content frame of frame from this host node binding application information, and the signal strength signal intensity that monitors the binding application information frame of receiving from node is greater than replying the signal strength signal intensity of obtaining the content frame of frame from this host node binding application information;
If satisfy any one in the above-mentioned decision condition, then monitor from node and follow on the host node that binding application binds to the binding application from node from node binding, if do not satisfy any one in the above-mentioned decision condition, then monitor from node and continue to enter monitored state or competition binding application status.
The handover number that above-mentioned supervision is obtained from node is the handover number that host node is received binding application information frame, monitors that the signal strength signal intensity of obtaining from node is the signal strength signal intensity of the binding application information frame received of host node.
Also comprise before the described step S305: judge whether host node receives the binding application answer acknowledgement frame that the binding application sends from node, if receive, then execution in step S305 and subsequent step; If do not receive, then repeat following steps by setting number of repetition: do not receive that the binding application information replys that the host node of acknowledgement frame will be received the frame relay number of times of the binding application information frame that the binding application sends from node, the signal strength signal intensity of the binding application information frame received is put into the binding application information and replied frame, and send the binding application information to described binding application from node and reply frame.In the present embodiment, setting number of repetition is 3 times.
In the present embodiment, the binding application sends binding application information frame from node in the mode of broadcasting, and host node adopts the CAMA/CA mode to send the binding application information and replys frame.
In the present embodiment, adopt extra network packet to cooperate CSMA/CA to reduce network conflict, before node transmission binding application information frame, network at first carries out network packet according to the relaying degree of depth, binding is from initiating from host node group farthest, namely from host node farthest from node for the binding application from node.Draw near from the binding procedure of node, binding application all can monitor its binding information between node and the host node all from node, if determine to meet oneself binding condition, will follow and bind application node and be tied on its host node.The below illustrates and monitors the process of following binding from node, sees also Figure 12, and Figure 12 be the binding procedure schematic diagram from node, and the binding application is by initiating from node N6, and namely N6 applies for from node for binding.Table 1 is received the situation of binding application information frame for each node.
Table 1
| Node number | The information frame handover number | Information signal frame intensity |
| Host node 1 | 6 | 1000 |
| N1 | 5 | 1200 |
| N2 | 4 | 800 |
| |
3 | 1500 |
| |
2 | 1700 |
| N5 | 1 | 600 |
| N31 | 5 | 500 |
| N41 | 6 | 1500 |
| N51 | 7 | 1600 |
| |
7 | 200 |
| N21 | 7 | 150 |
Host node 1 receives that the frame relay number of times of binding application information frame is R1=6, the signal strength signal intensity of receiving binding application information frame is S1=1000, host node 2 receives that the frame relay number of times of binding application information frame is R2=7, the signal strength signal intensity of receiving binding application information frame is S2=700, because R1＜R2, according to the basis for estimation of binding optimum host node as can be known, N6 is tied to host node 1.
The binding application is from binding from node employing follow-up strategy between the host node 1 of node N6 and its binding.The frame relay number of times of receiving binding application information frame from node N1 is R
1=5, according to the decision condition of following binding as can be known, R
1＜R1, follow from node N6 from node N1 and to be tied to host node 1, with from node N1, receive the frame relay number of times of binding the application information frame all less than R1 from node N2, N3, N4, N5, N31, therefore follow from node N6 from node N2, N3, N4, N5, N31 and be tied to host node 1.For for node N41, receive that the frame relay number of times of binding application information frame is R
41=6, the signal strength signal intensity of the binding application information frame of receiving is S
41=1500, according to the decision condition of following binding, because R
41=R1 and S
41＞S1 follows from node N6 binding host node 1 from node N41.The frame relay number of times of receiving binding application information frame from node N51 is R
51=7, because R
51＞R1 according to the decision condition of following binding, can not bind from node N51.For for node N21, R
21=7, S
21=150, because R
21＞R1 according to the decision condition of following binding, can not bind from node N21.
Table 2
In the present embodiment, binding is to initiate by the mode of host node change MAC Address.Power line carrier communication is to rely on the access of MAC Address realizing route, so after the change of host node MAC Address, need to remove network bound information, and then carry out network reconfiguration.
The process of initiating binding by host node change MAC Address is as shown in figure 13:
(301) host node address is set;
(302) judge whether the address is changed, if so, then execution in step (303) and subsequent step; If not, execution in step (306) then;
(303) check whether network is idle, if so, then execution in step (304) and subsequent step; If not, execution in step (307) then;
(304) mode with repeatedly broadcasting sends network dismission order;
(305) with repeatedly broadcasting mode send begin the binding;
(306) system enters normal condition;
(307) random delay Δ t
3, execution in step (303) and subsequent step.
The initiation mode that the present embodiment does not limit binding is host node change MAC Address, and binding also can be by the initiation that powers on from node, also can be by the host node initiation that powers on.If the network bound that host node powers on or host node change MAC Address is initiated, network at first carries out network packet, and binding is to initiate from the nearest group of host node by initiating first from host node group farthest at last.
In the trivial separating method of the platform of power line communication provided by the invention, when each host node receives same information frame, the comparison of the signal strength signal intensity of the frame relay number of times by each host node being received same information frame and the information frame of receiving, can be effectively with on from the node binding to the host node, the table meter archives that main website reports by host node just can be determined the platform district ownership from node.In addition, from the binding procedure of node, comprise binding procedure to apply repeatedly, selected the maximum host node binding of preferential number of times, therefore can tackle reliably the characteristic of power line carrier time variation, so that trivial minute accuracy rate of platform improves greatly; According to the relaying degree of depth network is divided into groups, effectively must reduce the CSMA/CA conflict, improved network service efficient; Follow binding strategy so that network is finished rapidly the binding of node, effectively solved the slow problem of the trivial component velocity of platform.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. the method from the node binding host node is characterized in that, comprising:
(11) the binding application sends binding application information frame from node, has at least a host node to receive this binding application information frame; The binding application information that described each host node will be received the frame relay number of times of binding application information frame and the signal strength signal intensity of the binding application information frame received is put into is separately replied frame; Described each host node sends respectively the binding application information and replys frame to described binding application from node;
(12) described binding application is replied the signal strength signal intensity that each host node of frame recording is received frame relay number of times and the binding application information frame of receiving of binding application information frame from node according to each binding application information of receiving;
(13) the optimum host node of the definite binding of signal strength signal intensity of the frame relay number of times of binding application information frame and the binding application information frame of receiving is received in described binding application according to each host node from node:
If each host node receives that the frame relay number of times of binding application information frame is not identical, receive that then the host node of the frame relay number of times minimum of binding application information frame is the optimum host node of binding; If each host node receives that the frame relay number of times of binding application information frame is identical, the host node of the signal strength signal intensity maximum of the binding application information frame of then receiving is the optimum host node of binding;
(14) optimum host node sends the binding acknowledgement frame from node to described binding in described binding application, so that the binding application is from node binding to binding on the optimum host node.
2. method according to claim 1, it is characterized in that, described step (13) also comprises before: described binding application sends the binding application from node to each host node that sends binding application information answer frame and replys acknowledgement frame, if described host node is received this frame, then execution in step (13) and step (14); If described host node is not received this frame in setting-up time, then repeat following steps by setting number of repetition:
Do not receive that the binding application information replys that the host node of acknowledgement frame will be received the handover number of the binding application information frame that described binding application sends from node and the signal strength signal intensity of the binding application information frame received puts into that the binding application information is replied frame and send the binding application information to described binding application from node replys frame.
3. method according to claim 2 is characterized in that, in the described step (14), the optimum host node of this binding application is recorded in the binding application when node determines the optimum host node of binding application;
Described step (14) also comprises before:
Repeating step (11) is to (13), until host node is to bind the number of times of optimum host node greater than set point number, finishes this binding;
Described binding application is selected the maximum host node binding of preferential number of times, then execution in step (14) from node.
4. method according to claim 3, it is characterized in that, described binding application sends before the binding application information frame from node, comprise that also host node divides into groups to network according to the relaying degree of depth, binding is by initiating from host node group farthest, be to initiate from the nearest group of host node at last, described binding application is from host node group farthest from node.
5. method according to claim 4 is characterized in that,
Described binding application between node and the host node from node for monitoring from node, described supervision is adopted follow-up strategy to follow the binding application from node and is bound from node, its binding procedure is:
Described binding application monitors from node to monitor the signal strength signal intensity that this frame also records frame relay number of times He this frame of receiving this frame after sending binding application information frame from node;
Described supervision monitors binding application information that host node sends from node and replys handover number and the signal strength signal intensity of obtaining behind the frame this content frame;
Described supervision monitors the binding acknowledgement frame from node, judges whether to satisfy in following two conditions any one, if satisfy, then follows on the host node that the binding application binds to the binding application from node from node binding:
(1) described supervision receives that from node the frame relay number of times of binding application information frame is less than replying the handover number that obtains the content frame of frame from this host node binding application information;
(2) described supervision receives that from node the frame relay number of times of binding application information frame equals to reply the handover number that obtains the content frame of frame from this host node binding application information, and the signal strength signal intensity that monitors the binding application information frame of receiving from node is greater than replying the signal strength signal intensity of obtaining the content frame of frame from this host node binding application information;
If do not satisfy any one in above-mentioned two conditions, then described supervision enters monitoring or competition binding application status from node.
6. method according to claim 1 is characterized in that, described binding by host node power on, host node change MAC Address or initiate from the mode that node powers on.
7. method according to claim 1 is characterized in that, the described transmission in the mode of broadcasting from node bound the application information frame.
8. method according to claim 1 is characterized in that, described binding application information is replied frame and adopted the CSMA/CA mode to send.
9. the trivial separating method of platform is characterized in that, comprising:
Utilizing will be from the node binding to the host node such as the described method from the node binding host node of any one in the claim 1 to 8;
From node its table meter archives are reported host node;
Host node will be shown the meter archives and report main website, and described host node has unique mailing address, and the table meter archives that it reports namely belong to the platform district at this host node place;
Main website receives that described table meter archives just can learn the described platform district that belongs to from node and described table meter archives.
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