CN117318765A - Broadband power line carrier communication network and maintenance method thereof - Google Patents
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/04—Network management architectures or arrangements
- H04L41/044—Network management architectures or arrangements comprising hierarchical management structures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/04—Network management architectures or arrangements
- H04L41/046—Network management architectures or arrangements comprising network management agents or mobile agents therefor
Abstract
The embodiment of the invention discloses a broadband power line carrier communication network and a maintenance method thereof, wherein when a first communication success rate meets agent change conditions, a new agent node is determined from all neighbor nodes of a current node according to a second communication success rate, a node level, a node role and a third communication success rate, wherein the first communication success rate is the communication success rate between the current node and the agent node of the current node, the second communication success rate is the communication success rate between the current node and the neighbor node of the current node, and the third communication success rate is the communication success rate between the neighbor node of the current node and the agent node of the neighbor node. Therefore, the communication success rate between the determined new proxy node and the nodes of the proxy node is ensured, so that the information transmission efficiency of the determined new proxy node is ensured, and the proxy changing efficiency in the maintenance process of the network is further improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a broadband power line carrier communication network and a maintenance method thereof.
Background
The broadband power line carrier communication network uses a power line as a communication medium to realize convergence, transmission and interaction of power consumption information of a power consumer. In the dynamic route maintenance process, nodes in the network need to judge channel conditions of peripheral neighbor nodes in real time so as to select better proxy nodes. The current common mode is to select a new proxy node through three dimensions of communication success rate with neighbor nodes, proxy hierarchy and proxy role.
However, the efficiency of information transmission by the proxy node determined in this way is difficult to ensure, so that the proxy change efficiency in the network maintenance process is affected.
Disclosure of Invention
In view of the above, the embodiments of the present invention provide a broadband power line carrier communication network and a maintenance method thereof, which solve the problem that the determined efficiency of transmitting information by proxy nodes is difficult to be ensured, and improve the proxy changing efficiency in the maintenance process of the network.
In a first aspect, a method for maintaining a broadband power line carrier communication network is provided, the method comprising:
acquiring a first communication success rate and a second communication success rate, wherein the first communication success rate is the communication success rate between a current node and a proxy node of the current node, and the second communication success rate is the communication success rate between the current node and a neighbor node of the current node;
determining a new proxy node from the neighbor nodes according to the second communication success rate, the node hierarchy, the node role and the third communication success rate in response to the first communication success rate meeting a proxy change condition;
the third communication success rate is the communication success rate between the neighbor node of the current node and the proxy node of the neighbor node.
In some embodiments, the neighbor node type is a central coordinator, a proxy node, or a child node, and the current node type is a proxy node or a child node.
In some embodiments, the method further comprises:
generating and sending a proxy change request message, wherein the proxy change request message comprises the identification of the new proxy node;
and receiving a proxy change confirmation message to complete the proxy change of the current node.
In some embodiments, the first communication success rate meets a proxy change condition as follows: the first communication success rate is not greater than a first predetermined threshold.
In some embodiments, the first communication success rate meets a proxy change condition as follows:
the first communication success rate is greater than a first predetermined threshold and the second communication success rate is greater than the first communication success rate.
In some embodiments, the determining a new proxy node from each of the neighbor nodes according to the second communication success rate, node hierarchy, node role, and third communication success rate includes:
taking the neighbor node corresponding to the second communication success rate larger than a second preset threshold value as an alternative proxy node;
and determining a new proxy node according to the node level, the node role and the third communication success rate of the alternative proxy node.
In some embodiments, the third communication success rate of the new proxy node is greater than a third predetermined threshold.
In a second aspect, a broadband power line carrier communication network is provided, the broadband power line carrier communication network comprising a sub-node, a proxy node and a central coordinator;
the child node is configured to acquire a first communication success rate and a second communication success rate, respond to the first communication success rate meeting a proxy change condition, determine a new proxy node from the neighbor nodes according to the second communication success rate, the node level, the node role and the third communication success rate, and generate and send a proxy change request message; the first communication success rate is the communication success rate between the current node and the proxy node of the current node, the second communication success rate is the communication success rate between the current node and the neighbor node of the current node, and the third communication success rate is the communication success rate between the neighbor node of the current node and the proxy node of the neighbor node;
the central coordinator is configured to receive the proxy change request message, generate and send a proxy designation request message to a new proxy node according to the proxy change request message;
the new proxy node receives the proxy designation request message, generates and sends a proxy designation confirmation message to the central coordinator;
the central coordinator is further configured to receive a proxy designation acknowledgement message and send a proxy change acknowledgement message to the corresponding child node.
In some embodiments, the proxy node is configured to forward the proxy change request message, the proxy designation acknowledge message, and the proxy change acknowledge message to implement transmission of the corresponding messages.
In a third aspect, there is provided a maintenance apparatus for a broadband power line carrier communication network, the apparatus comprising:
the device comprises an acquisition module, a communication module and a communication module, wherein the acquisition module is configured to acquire a first communication success rate and a second communication success rate, the first communication success rate is a communication success rate between a current node and a proxy node of the current node, and the second communication success rate is a communication success rate between the current node and a neighbor node of the current node;
a determining module configured to determine a new proxy node from the neighboring nodes according to the second communication success rate, the node hierarchy, the node role, and the third communication success rate in response to the first communication success rate meeting a proxy change condition;
the third communication success rate is the communication success rate between the neighbor node of the current node and the proxy node of the neighbor node.
In a fourth aspect, a computer-readable storage medium is provided, in which a computer program is stored, which computer program, when being executed by a processor, carries out the method according to the first aspect.
When the first communication success rate meets the agent change condition, determining a new agent node from all neighbor nodes of the current node according to a second communication success rate, a node level, a node role and a third communication success rate, wherein the first communication success rate is the communication success rate between the current node and the agent node of the current node, the second communication success rate is the communication success rate between the current node and the neighbor node of the current node, and the third communication success rate is the communication success rate between the neighbor node of the current node and the agent node of the neighbor node. Therefore, the communication success rate between the determined new proxy node and the nodes of the proxy node is ensured, so that the information transmission efficiency of the determined new proxy node is ensured, and the proxy changing efficiency in the maintenance process of the network is further improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a flowchart of a maintenance method of a broadband power line carrier communication network according to an embodiment of the present invention;
FIG. 2 is a flow chart of an embodiment of the invention for determining a new proxy node;
fig. 3 is a schematic diagram of an exemplary broadband power line carrier communication network in accordance with an embodiment of the present invention;
fig. 4 is a schematic diagram of an interaction flow of a broadband power line carrier communication network according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a maintenance device of a broadband power line carrier communication network according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an electronic device according to an embodiment of the invention.
Detailed Description
The present application is described below based on examples, but the present application is not limited to only these examples. In the following detailed description of the present application, certain specific details are set forth in detail. The present application will be fully understood by those skilled in the art without a description of these details. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the nature of the present application.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, the words "comprise," "comprising," and the like throughout the application are to be construed as including but not being exclusive or exhaustive; that is, it is the meaning of "including but not limited to".
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Fig. 1 is a flowchart of a maintenance method of a broadband power line carrier communication network according to an embodiment of the present invention. As shown in fig. 1, the maintenance method of the broadband power line carrier communication network according to the embodiment of the present invention includes the following steps:
step S110, a first communication success rate and a second communication success rate are obtained, wherein the first communication success rate is a communication success rate between a current node and a proxy node of the current node, and the second communication success rate is a communication success rate between the current node and a neighbor node of the current node.
Wherein the neighbor node type is a central coordinator (Central Coordinator, CCO), a proxy node (Proxy Coordinator, PCO), or a child node (Station, STA), and the current node type is a proxy node or a child node.
Each child node STA and the proxy node PCO may send discovery list messages to its neighboring nodes in real time or periodically at a preset frequency through broadcasting. Each neighbor node can add its communication status information to the discovery list message and send it out by broadcasting. Each child node STA and the proxy node PCO can continuously receive a discovery list message sent by a corresponding neighbor node within a preset time, and can obtain communication state information of the corresponding neighbor node by analyzing the received discovery list message, where the communication state information includes a proxy level, a proxy role, a communication success rate with a current node, and a communication success rate between the corresponding neighbor node and a proxy node of the neighbor node.
The current node can acquire the communication success rate between the current node and the proxy node of the current node, namely the first communication success rate, by analyzing the received discovery list message. Meanwhile, the current node can also acquire the communication success rate of the current node and each neighbor node corresponding to the current node, namely the second communication success rate, by analyzing the received discovery list message.
Therefore, the current node can judge whether the proxy node of the current node needs to be changed based on the acquired first communication success rate and second communication success rate, and further correspondingly change the proxy node with the lower communication success rate of the current node, so that the information transmission efficiency between the current node and the central coordinator CCO is improved.
And step S120, determining a new proxy node from the neighbor nodes according to the second communication success rate, the node level, the node role and the third communication success rate in response to the first communication success rate meeting the proxy change condition, wherein the third communication success rate is the communication success rate between the neighbor node of the current node and the proxy node of the neighbor node.
The third communication success rate may be obtained by the current node analyzing the received discovery list message. The current node can determine the communication success rate between the corresponding neighbor node and the proxy node of the corresponding neighbor node by analyzing the discovery list message sent by each neighbor node.
In some implementations, when the first communication success rate is not greater than a first predetermined threshold, then a proxy change condition is determined to be met. The first preset threshold value can be preset according to the actual condition of the network so as to ensure the success rate of communication between the child node and the proxy node. For example, when the network size is large, the communication pressure of the central coordinator CCO is large, and the overall communication success rate of the network is relatively low, at this time, the set value of the first predetermined threshold may be relatively lowered. When the network scale is smaller, the communication pressure of the central coordinator CCO is smaller, and the overall communication success rate of the network is relatively higher, at this time, the set value of the first predetermined threshold can be relatively increased.
When the first communication success rate is not greater than the first predetermined threshold, it is indicated that the information transmission efficiency between the current node and the proxy node of the current node is low, and it is difficult for the proxy node of the current node to stably transmit the corresponding information between the current node that proxies the proxy node and the central coordinator CCO. The current node needs to determine a better proxy node by changing the node to improve the information transmission efficiency between the current node and the central coordinator CCO.
In other implementations, when the first communication success rate is greater than a first predetermined threshold and the second communication success rate is greater than the first communication success rate, then a proxy change condition is determined to be met.
If the communication success rate between the current node and the proxy node of the current node is greater than the first preset threshold, but a neighbor node with higher communication success rate with the current node exists, the proxy node is judged to be in accordance with the proxy change condition, and the proxy node needs to be changed, so that the changed proxy node can better proxy the current node, the information transmission efficiency with the central coordinator CCO is improved, and the overall communication efficiency of the network is improved.
After judging that the agent change condition is met, determining a new agent node from all neighbor nodes by the current node according to the second communication success rate, the node level, the node role and the third communication success rate, thereby completing agent change.
Specifically, the step of determining a new proxy node from the neighboring nodes according to the second communication success rate, the node hierarchy, the node role and the third communication success rate is shown in fig. 2, and includes:
and step S121, using the neighbor node corresponding to the second communication success rate larger than a second preset threshold value as an alternative proxy node.
The second predetermined threshold may be preset according to an actual condition of the network. For example, the second predetermined threshold may be determined based on the network size. When the network scale is large, the communication pressure of the central coordinator CCO is large, and the overall communication success rate of the network is relatively low, at this time, the set value of the second predetermined threshold can be relatively reduced. When the network scale is smaller, the communication pressure of the central coordinator CCO is smaller, and the overall communication success rate of the network is relatively higher, at this time, the set value of the second predetermined threshold can be relatively increased. According to the actual condition of the network, the neighbor node with relatively high communication success rate with the current node is selected as the alternative proxy node, and the information transmission efficiency between the current node and the central coordinator is further ensured.
Step S122, determining a new proxy node according to the node level, the node role and the third communication success rate of the alternative proxy node.
In some embodiments, a new proxy node may be determined according to a determination order of a node hierarchy, a node role, and a third communication success rate based on the alternative proxy node.
For example, when there are a plurality of candidate agent nodes, further selection is performed by the node hierarchy, and a node with a lower hierarchy is preferentially selected. If the number of the nodes screened at the moment is multiple, selecting the nodes with PCO as the priority through node role selection. If there are more nodes with PCO, comparing the third communication success rate, and selecting the node with the third communication success rate larger than the third preset threshold. If a unique proxy node is not screened at the moment, comparing the communication success rate, and selecting the node with the highest communication success rate as the proxy node.
It should be understood that, in the process of determining a new proxy node from each neighboring node according to the second communication success rate, the node hierarchy, the node role and the third communication success rate in sequence, when the screened node is already a unique node, the node is directly determined as the new proxy node, and the subsequent condition determination is not necessary.
The third predetermined threshold may be preset according to an actual condition of the network. For example, the third predetermined threshold may be determined based on the network size. When the network scale is large, the communication pressure of the central coordinator CCO is large, and the overall communication success rate of the network is relatively low, at this time, the set value of the third predetermined threshold value can be relatively reduced. When the network scale is smaller, the communication pressure of the central coordinator CCO is smaller, and the overall communication success rate of the network is relatively higher, at this time, the set value of the third predetermined threshold value can be relatively increased. Therefore, the communication success rate between the screened proxy node and the nodes of the proxy node can be ensured, so that the information transmission efficiency between the neighbor node and the central coordinator CCO is ensured, the transmission efficiency of the proxy change related message is further ensured, the invalid proxy change message blocking channel caused by transmission failure is avoided, and the overall proxy change efficiency of the network is improved.
In other embodiments, when determining the new proxy node, the order of the node level, and the third communication success rate is not fixed, and may be adjusted according to actual requirements, for example, the new proxy node may also be determined according to the order of judging the order of the node level, and the third communication success rate.
For example, fig. 3 is a schematic diagram of an exemplary broadband power line carrier communication network according to an embodiment of the present invention. As shown in fig. 3, the broadband power line carrier communication network of the embodiment of the present invention includes a central coordinator CCO, proxy nodes PCO1, PCO2, PCO3, and PCO4, and child nodes STA1, STA2, STA3, STA4, STA5, and STA6.
Among the neighbor nodes of STA5 are STA1, STA2, STA4, STA6, PCO2, PCO3 and PCO4. Except for the STA1 and the PCO3, the communication success rates of the rest neighbor nodes and the STA5 are all larger than a second preset threshold, the communication success rate of the PCO2 and the PCO1 is larger than a third communication success rate, and the communication success rate of the PCO4 and the PCO1 is smaller than the third communication success rate.
The maintenance flow of the broadband power line carrier communication network of the present embodiment will be described below by taking the current node as STA5 as an example.
Specifically, the node STA5 sends the discovery list message to its neighboring nodes in real time through broadcasting, and each neighboring node (for example, the node PCO 2) may add its communication status information to the discovery list message and send the message through broadcasting. After receiving the discovery list message sent by PCO2, STA5 may obtain the communication success rate (i.e., the first communication success rate) between STA5 and PCO3 by parsing the received discovery list message. Meanwhile, the STA5 may further obtain the proxy level of the PCO2, the proxy role, the communication success rate between the PCO2 and the STA5 (i.e., the second communication success rate), and the communication success rate between the PCO2 and the PCO1 (i.e., the third communication success rate) by parsing the received discovery list message. Thus, the STA5 can acquire the communication success rate with the current proxy node, the communication success rate with each neighboring node, and the communication success rate between each neighboring node and the neighboring node corresponding to the proxy by analyzing the received discovery list message.
When the communication success rate of the node STA5 and the proxy node PCO3 thereof is not greater than a first predetermined threshold, or when the communication success rate of the node STA5 and the proxy node PCO3 thereof is greater than the first predetermined threshold and the second communication success rate is higher than the first communication success rate, it is determined that the proxy node of the node STA5 needs to be changed. When selecting a new proxy node, firstly, selecting corresponding neighbor nodes STA2, STA4, STA6, PCO2 and PCO4 from neighbor nodes of the node STA5 when the second communication success rate is greater than a second preset threshold value as alternative proxy nodes. And then the node with the lowest hierarchy is screened out of the candidate nodes. Since the nodes STA2, PCO2 and PCO4 are in layer 2 and STA4 and STA6 are in layer 3, the selection range of the new proxy node is narrowed to the nodes STA2, PCO2 and PCO4 in layer 2, and then the node with the node role of PCO is preferentially selected, and further the selection range of the new proxy node is narrowed to the nodes PCO2 and PCO4, and since the node at this time is still not uniquely determined, the new proxy node needs to be determined according to the third communication success rate, and since the communication success rate of PCO2 and PCO1 is greater than the third communication success rate and the communication success rate of PCO4 and PCO1 is smaller than the third communication success rate, PCO2 can be determined as the new proxy node of STA 5.
Therefore, the new proxy node is determined from all neighbor nodes of the current node according to the second communication success rate, the node hierarchy, the node roles and the third communication success rate, so that the determined new proxy node has higher communication success rate with the current node and higher communication success rate with the proxy node, thereby ensuring that the determined new proxy node can effectively complete corresponding proxy change, and further improving the overall change efficiency of the network.
In some embodiments, after determining a new proxy node, the current node generates a proxy change request message and sends the proxy change request message to the central coordinator CCO, where the proxy change request message includes an identification of the new proxy node. The central coordinator CCO determines corresponding new proxy node information according to the identification, and sends a proxy change confirmation message to the current node after confirming that the proxy change is accepted to the new proxy node, and the current node receives the proxy change confirmation message sent by the central coordinator CCO, so that the proxy change of the current node is completed.
When the first communication success rate meets the agent change condition, determining a new agent node from all neighbor nodes of the current node according to a second communication success rate, a node level, a node role and a third communication success rate, wherein the first communication success rate is the communication success rate between the current node and the agent node of the current node, the second communication success rate is the communication success rate between the current node and the neighbor node of the current node, and the third communication success rate is the communication success rate between the neighbor node of the current node and the agent node of the neighbor node. Therefore, the communication success rate between the determined new proxy node and the nodes of the proxy node is ensured, so that the information transmission efficiency of the determined new proxy node is ensured, and the proxy changing efficiency in the maintenance process of the network is further improved.
Fig. 4 is a schematic diagram of an interaction flow of a broadband power line carrier communication network according to an embodiment of the present invention. The present embodiment is exemplarily described with the type of the current node as a child node. The current node is the node requesting the change agent. As shown in fig. 4, the broadband power line carrier communication network interaction flow in the embodiment of the present invention includes the following steps: in step S401, the child node obtains a first communication success rate and a second communication success rate.
The first communication success rate is the communication success rate between the current node and the proxy node of the current node, and the second communication success rate is the communication success rate between the current node and the neighbor node of the current node.
In step S402, the child node determines a new proxy node from the neighboring nodes according to the second communication success rate, the node hierarchy, the node role, and the third communication success rate in response to the first communication success rate meeting the proxy change condition.
And the third communication success rate is the communication success rate between the neighbor node of the child node and the proxy node of the neighbor node. Specifically, when the first communication success rate is not greater than a first predetermined threshold, or when the first communication success rate is greater than a first predetermined threshold and the second communication success rate is higher than the first communication success rate, the current child node determines a new proxy node from each neighboring node according to the second communication success rate, the node hierarchy, the node role, and the third communication success rate, and the specific steps may refer to steps S121-S122, which are not described herein.
Step S403, send agent change request message.
Specifically, after determining a new proxy node, the child node generates a proxy change request message, and sends the proxy change request message to the central coordinator CCO. Wherein the proxy change request message includes an identification of the new proxy node.
Step S404, send agent assignment request message.
Specifically, after receiving the proxy change request, the central coordinator CCO generates a proxy designation request message, and sends the proxy designation request message to a new proxy node according to the identifier of the new proxy node in the proxy change request message.
Step S405, send agent assignment acknowledgement message.
Specifically, the new proxy node receives the proxy designation request message, and after confirming that the proxy designation is received, generates a proxy designation confirmation message, and sends the proxy designation confirmation message to the central coordinator CCO.
Step S406, send agent change confirmation message.
Specifically, after receiving the proxy designation acknowledgement message, the central coordinator CCO sends a proxy change acknowledgement message to the corresponding node (i.e., child node) requesting to change the proxy, so as to complete the proxy change of the corresponding node.
In some embodiments, the proxy node is configured to forward the proxy change request message, the proxy designation acknowledge message, and the proxy change acknowledge message to implement transmission of the corresponding messages.
Specifically, when the child node sends a proxy change request message to the central coordinator, when the central coordinator sends a proxy designation request message to a new proxy node, the new proxy node sends a proxy designation acknowledgement message to the central coordinator, and when the central coordinator sends a proxy change acknowledgement message to the current node, transmission is completed through corresponding proxy node transfer respectively.
For example, as shown in fig. 3, when the node STA5 needs to change the proxy and determines that the new proxy node is PCO2, the transmission procedure of the proxy change related message is as follows:
the node STA5 sends a proxy change request message, wherein the proxy change request message comprises the identification of the new proxy node PCO2, the proxy change request message is transmitted to the central coordinator CCO through the proxy nodes PCO3 and PCO1, and after the central coordinator CCO receives the proxy change request message, the proxy change request message is determined to be sent to the proxy node PCO2 according to the identification of the new proxy node PCO2 in the proxy change request message, and the proxy change request message is transmitted to the proxy node PCO2 through the proxy node PCO 1. And after the proxy node PCO2 determines to receive the proxy designation request, sending a proxy designation confirmation message, wherein the proxy designation confirmation message is transmitted to the central coordinator CCO through the proxy node PCO 1. After receiving the proxy designation confirmation message, the central coordinator CCO sends a proxy change confirmation message to the node STA5, and the proxy change confirmation message is transmitted to the node STA5 through the proxy node PCO1 and the proxy node PCO2, so as to complete the proxy change of the corresponding node.
When the first communication success rate meets the agent change condition, determining a new agent node from all neighbor nodes of the current node according to a second communication success rate, a node level, a node role and a third communication success rate, wherein the first communication success rate is the communication success rate between the current node and the agent node of the current node, the second communication success rate is the communication success rate between the current node and the neighbor node of the current node, and the third communication success rate is the communication success rate between the neighbor node of the current node and the agent node of the neighbor node. Therefore, the communication success rate between the determined new proxy node and the nodes of the proxy node is ensured, so that the information transmission efficiency of the determined new proxy node is ensured, and the proxy changing efficiency in the maintenance process of the network is further improved.
Fig. 5 is a schematic diagram of a maintenance device of a broadband power line carrier communication network according to an embodiment of the present invention. As shown in fig. 5, the apparatus includes an acquisition module 51 and a determination module 52.
Wherein the obtaining module 51 is configured to obtain the first communication success rate and the second communication success rate. The determining module 52 is configured to determine a new proxy node from each of the neighboring nodes according to the second communication success rate, node hierarchy, node role, and third communication success rate in response to the first communication success rate meeting a proxy change condition. The first communication success rate is a communication success rate between a current node and a proxy node of the current node, the second communication success rate is a communication success rate between the current node and a neighbor node of the current node, and the third communication success rate is a communication success rate between the neighbor node of the current node and the proxy node of the neighbor node.
Further, the determining module 52 further includes an alternative agent node determining unit configured to take, as an alternative agent node, a neighbor node corresponding to when the second communication success rate is greater than a second predetermined threshold, and a new agent node determining unit. The new agent node determining unit is configured to determine a new agent node according to the node hierarchy, the node role, and the third communication success rate of the candidate agent node.
Optionally, the maintenance device of the broadband power line carrier communication network further includes a generating module and a receiving module, where the generating module is configured to generate and send a proxy change request message, and the proxy change request message includes an identifier of the new proxy node. The receiving module is configured to receive a proxy change acknowledgement message to complete a proxy change of the current node.
When the first communication success rate meets the agent change condition, determining a new agent node from all neighbor nodes of the current node according to a second communication success rate, a node level, a node role and a third communication success rate, wherein the first communication success rate is the communication success rate between the current node and the agent node of the current node, the second communication success rate is the communication success rate between the current node and the neighbor node of the current node, and the third communication success rate is the communication success rate between the neighbor node of the current node and the agent node of the neighbor node. Therefore, the communication success rate between the determined new proxy node and the nodes of the proxy node is ensured, so that the information transmission efficiency of the determined new proxy node is ensured, and the proxy changing efficiency in the maintenance process of the network is further improved.
Fig. 6 is a schematic diagram of an electronic device according to an embodiment of the invention. As shown in fig. 6, the electronic device shown in fig. 6 is a general address query device, which includes a general computer hardware structure including at least a processor 61 and a memory 62. The processor 61 and the memory 62 are connected by a bus 63. The memory 62 is adapted to store instructions or programs executable by the processor 61. The processor 61 may be a separate microprocessor or a collection of one or more microprocessors. Thus, the processor 61 performs the process of the data and the control of other devices by executing the instructions stored in the memory 62, thereby executing the method flow of the embodiment of the present invention as described above. The bus 63 connects the above-described components together, and connects the above-described components to the display controller 64 and the display device and the input/output (I/O) device 65. Input/output (I/O) devices 65 may be a mouse, keyboard, modem, network interface, touch input device, somatosensory input device, printer, and other devices known in the art. Typically, the input/output devices 65 are connected to the system through input/output (I/O) controllers 66.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, apparatus (device) or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may employ a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations of methods, apparatus (devices) and computer program products according to embodiments of the application. It will be understood that each of the flows in the flowchart may be implemented by computer program instructions.
These computer program instructions may be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows.
These computer program instructions may also be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows.
Another embodiment of the present invention is directed to a non-volatile storage medium storing a computer readable program for causing a computer to perform some or all of the method embodiments described above.
That is, it will be understood by those skilled in the art that all or part of the steps in implementing the methods of the embodiments described above may be implemented by specifying relevant hardware by a program, where the program is stored in a storage medium, and includes several instructions for causing a device (which may be a single-chip microcomputer, a chip or the like) or a processor (processor) to perform all or part of the steps in the methods of the embodiments described herein. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. that fall within the spirit and principles of the present application are intended to be included within the scope of the present application.
Claims (10)
1. A method of maintaining a broadband power line carrier communication network, the method comprising:
acquiring a first communication success rate and a second communication success rate, wherein the first communication success rate is the communication success rate between a current node and a proxy node of the current node, and the second communication success rate is the communication success rate between the current node and a neighbor node of the current node;
determining a new proxy node from the neighbor nodes according to the second communication success rate, the node hierarchy, the node role and the third communication success rate in response to the first communication success rate meeting a proxy change condition;
the third communication success rate is the communication success rate between the neighbor node of the current node and the proxy node of the neighbor node.
2. The method of claim 1, wherein the neighbor node type is a central coordinator, a proxy node, or a child node, and the current node type is a proxy node or a child node.
3. The method according to claim 1, wherein the method further comprises:
generating and sending a proxy change request message, wherein the proxy change request message comprises the identification of the new proxy node;
and receiving a proxy change confirmation message to complete the proxy change of the current node.
4. The method of claim 1, wherein the first communication success rate meets a proxy change condition as: the first communication success rate is not greater than a first predetermined threshold.
5. The method of claim 1, wherein the first communication success rate meets a proxy change condition as:
the first communication success rate is greater than a first predetermined threshold and the second communication success rate is greater than the first communication success rate.
6. The method of claim 1, wherein the determining a new proxy node from each of the neighbor nodes based on the second communication success rate, node hierarchy, node role, and third communication success rate comprises:
taking the neighbor node corresponding to the second communication success rate larger than a second preset threshold value as an alternative proxy node;
and determining a new proxy node according to the node level, the node role and the third communication success rate of the alternative proxy node.
7. The method of claim 6, wherein a third communication success rate of the new proxy node is greater than a third predetermined threshold.
8. A broadband power line carrier communication network, comprising a sub-node, a proxy node and a central coordinator;
the child node is configured to acquire a first communication success rate and a second communication success rate, respond to the first communication success rate meeting a proxy change condition, determine a new proxy node from all neighbor nodes according to the second communication success rate, the node level, the node role and the third communication success rate, and generate and send a proxy change request message; the first communication success rate is the communication success rate between the current node and the proxy node of the current node, the second communication success rate is the communication success rate between the current node and the neighbor node of the current node, and the third communication success rate is the communication success rate between the neighbor node of the current node and the proxy node of the neighbor node;
the central coordinator is configured to receive the proxy change request message, generate and send a proxy designation request message to a new proxy node according to the proxy change request message;
the new proxy node receives the proxy designation request message, generates and sends a proxy designation confirmation message to the central coordinator;
the central coordinator is further configured to receive a proxy designation acknowledgement message and send a proxy change acknowledgement message to the corresponding child node.
9. The broadband power line carrier communication network of claim 8, wherein the proxy node is configured to forward the proxy change request message, the proxy designation acknowledge message, and the proxy change acknowledge message to effect transmission of the respective messages.
10. A computer readable storage medium, on which computer program instructions are stored, which computer program instructions, when executed by a processor, implement the method of any of claims 1-7.
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