CN116668370B - PLC communication and wireless communication intelligent fusion method in power communication system - Google Patents
PLC communication and wireless communication intelligent fusion method in power communication system Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/80—Ingress point selection by the source endpoint, e.g. selection of ISP or POP
- H04L45/85—Selection among different networks
- H04L45/851—Dynamic network selection or re-selection, e.g. after degradation of quality
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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
- H04B3/544—Setting up communications; Call and signalling arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00837—Determination of triggering parameters for hand-off
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The embodiment of the disclosure discloses an intelligent fusion method for PLC communication and wireless communication in a power communication system. The method comprises the following steps: grouping a plurality of distribution terminals in a smart grid of a target area to obtain a plurality of distribution terminal groups; a PLC communication module and a wireless communication module are configured for each power distribution terminal, the source power distribution terminal determines the PLC communication module as a main communication module, determines the wireless communication module as a standby communication module, and transmits frame structure data to be transmitted to the target power distribution terminal; the target power distribution terminal analyzes the first frame structure data and determines the current communication quality score; if the current communication quality score is smaller than a preset communication quality score threshold, a signal is sent to the source power distribution terminal so that the source power distribution terminal can switch the communication module; when the inter-group communication is performed, the first central power distribution terminal and the second central power distribution terminal communicate through the wireless communication module. The embodiment realizes the improvement of the communication stability and reliability of the smart grid.
Description
Technical Field
The embodiment of the disclosure relates to the field of power communication, in particular to an intelligent fusion method for PLC communication and wireless communication in a power communication system.
Background
Various communication methods can be adopted in the power communication system. Both power line carrier (Power Line Carrier, PLC) communication and wireless communication are important communication means in power distribution communication networks. Wherein the PLC realizes communication by transmitting a high frequency signal on the power line, and the high frequency signal is severely attenuated because the power line is not a dedicated communication line. The wireless communication is affected by line load and interference, is easily affected by regions and climatic environments, and has high construction cost and high construction difficulty. Therefore, in the smart grid, various communication methods need to be converged. In the existing converged communication mode, a single converged mode is often adopted in a smart grid of an area for converged communication, for example, different channels are adopted for transmission at the same time, and data of two channels are converged at a receiving end.
However, the inventors found that when the above-described fusion method is adopted for fusion communication, there are often the following technical problems:
First, when a single converged communication mode is adopted, the requirements of the smart grid cannot be met.
Second, when different communication methods are adopted for the intra-group and inter-group, there is a problem of communication collision.
Third, when different communication modes are adopted for the intra-group and inter-group, the inter-group communication depends on the central power distribution terminals of the two power distribution terminal groups, and if the central power distribution terminals fail, the communication of the whole system can be seriously affected.
Disclosure of Invention
The disclosure is in part intended to introduce concepts in a simplified form that are further described below in the detailed description. The disclosure is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
Some embodiments of the present disclosure propose an intelligent fusion method and apparatus for PLC communication and wireless communication in a power communication system, to solve one or more of the technical problems mentioned in the background section above.
In a first aspect, some embodiments of the present disclosure provide an intelligent fusion method of PLC communication and wireless communication in a power communication system, the method comprising: grouping a plurality of distribution terminals in a smart grid of a target area to obtain a plurality of distribution terminal groups, wherein the distance between the distribution terminals in each distribution terminal group in the plurality of distribution terminal groups is smaller than a preset distance threshold; a PLC communication module and a wireless communication module are configured for each distribution terminal within each distribution terminal group such that two distribution terminals within each distribution terminal group that need to communicate within the group by: the source power distribution terminal determines the PLC communication module as a main communication module, determines the wireless communication module as a standby communication module, and transmits frame structure data to be transmitted to the target power distribution terminal through a main communication channel corresponding to the main communication module and a standby communication channel corresponding to the standby communication module respectively; the target power distribution terminal performs backup storage on the second frame structure data received from the standby communication channel to obtain backup data, analyzes the first frame structure data received from the main communication channel and determines the current communication quality score; if the current communication quality score is smaller than a preset communication quality score threshold, a signal representing that the current communication quality score is smaller than the preset communication quality score threshold is sent to the source power distribution terminal, so that the source power distribution terminal determines the wireless communication module as a main communication module and determines the PLC communication module as a standby communication module; when a first power distribution terminal group and a second power distribution terminal group in the plurality of power distribution terminal groups are in inter-group communication, a first central power distribution terminal is determined from the first power distribution terminal group, a second central power distribution terminal is determined from the second power distribution terminal group, and the first central power distribution terminal and the second central power distribution terminal are in communication through a wireless communication module.
In a second aspect, some embodiments of the present disclosure provide a web page generating apparatus, the apparatus including: the grouping unit is configured to group a plurality of distribution terminals in the intelligent power grid of the target area to obtain a plurality of distribution terminal groups, wherein the distance between the distribution terminals in each distribution terminal group in the plurality of distribution terminal groups is smaller than a preset distance threshold, and the preset distance threshold is the attenuation critical distance of PLC communication; the configuration unit is matched to configure the PLC communication module and the wireless communication module for each power distribution terminal in each power distribution terminal group so that two power distribution terminals needing to communicate in each power distribution terminal group can communicate in the group in the following mode, wherein the two power distribution terminals comprise a source power distribution terminal and a target power distribution terminal: the main communication module determining unit is configured to determine the PLC communication module as a main communication module, determine the wireless communication module as a standby communication module by the source power distribution terminal, and transmit frame structure data to be transmitted to the target power distribution terminal through a main communication channel corresponding to the main communication module and a standby communication channel corresponding to the standby communication module respectively; the target power distribution terminal performs backup storage on the second frame structure data received from the standby communication channel to obtain backup data, analyzes the first frame structure data received from the main communication channel and determines the current communication quality score; if the current communication quality score is smaller than a preset communication quality score threshold, a signal representing that the current communication quality score is smaller than the preset communication quality score threshold is sent to the source power distribution terminal, so that the source power distribution terminal determines the wireless communication module as a main communication module and determines the PLC communication module as a standby communication module; and a determining unit configured to determine a first center power distribution terminal from the first power distribution terminal group and a second center power distribution terminal from the second power distribution terminal group, respectively, when the first power distribution terminal group and the second power distribution terminal group of the plurality of power distribution terminal groups are in inter-group communication, the first center power distribution terminal and the second center power distribution terminal being in communication through the wireless communication module.
In a third aspect, some embodiments of the present disclosure provide an electronic device comprising: one or more processors; a storage device having one or more programs stored thereon, which when executed by one or more processors causes the one or more processors to implement the method described in any of the implementations of the first aspect above.
The above embodiments of the present disclosure have the following advantageous effects: the communication stability and reliability of the intelligent power grid are improved. In practice, the inventors have found that the plurality of power distribution terminals of the smart grid are not evenly distributed, some of the power distribution terminals are more centrally distributed, and some of the power distribution terminals are more decentralized. Based on this, some embodiments of the present disclosure group a plurality of power distribution terminals according to their distribution characteristics. The inter-group communication uses wireless communication signals for communication without using PLC communication. This is because the inter-group communication is far away, and if PLC communication is used, there is a problem in that signal attenuation is serious, which affects the communication quality. Therefore, wireless communication signals are adopted for communication in the inter-group communication, so that signal attenuation can be reduced, and communication quality is ensured. For intra-group communication, dual-mode communication modes are adopted to be mutually backed up, so that communication interruption caused by a certain channel fault is avoided, and the reliability and stability of the whole system are improved.
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The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. The same or similar reference numbers will be used throughout the drawings to refer to the same or like elements. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.
FIG. 1 is a flow chart of some embodiments of a method of intelligent fusion of PLC communications and wireless communications in a power communication system according to the present disclosure;
FIG. 2 is a schematic diagram of some embodiments of a method apparatus for intelligent fusion of PLC communications and wireless communications in a power communication system according to the present disclosure;
fig. 3 is a schematic structural diagram of an electronic device suitable for use in implementing some embodiments of the present disclosure.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.
The names of messages or information interacted between the various devices in the embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, a flow 100 of some embodiments of a method of intelligent fusion of PLC communication and wireless communication in a power communication system according to the present disclosure is shown. The intelligent fusion method for PLC communication and wireless communication in the power communication system comprises the following steps:
Step 101, grouping a plurality of distribution terminals in a smart grid of a target area to obtain a plurality of distribution terminal groups, wherein the distance between the distribution terminals in each distribution terminal group in the plurality of distribution terminal groups is smaller than a preset distance threshold.
In some embodiments, the smart grid of the target area includes a plurality of power distribution terminals. The power distribution terminal is a power distribution switch monitoring terminal, has functions of remote control, remote measurement, remote signaling, fault detection and the like, is communicated with a power distribution automation master station, and provides information required by the operation condition of the intelligent power grid and various parameters, namely monitoring control. Information required for monitoring control includes, but is not limited to: switching state, electrical energy parameters, phase-to-phase faults, ground faults, and parameters at the time of the fault. In addition, the power distribution terminal can execute the command issued by the power distribution main station to regulate and control the power distribution equipment, so that the functions of fault positioning, fault isolation, rapid recovery of power supply in non-fault areas and the like are realized. The power distribution automation master station mainly comprises computer hardware, an operating system, a supporting platform (software) and power distribution network application software. The support platform comprises a system data bus and a plurality of basic services of the platform, and the distribution network application software comprises basic functions such as distribution SCADA and the like and extended functions such as power grid analysis application, intelligent application and the like, so that information interaction with other related systems is supported through an information interaction bus.
On the basis, a plurality of distribution terminals in the intelligent power grid of the target area can be grouped by the following steps of:
step one, acquiring position coordinates of each power distribution terminal in a plurality of power distribution terminals in a smart grid;
and secondly, selecting any power distribution terminal from the plurality of power distribution terminals as a seed power distribution terminal, determining whether the minimum distance in each distance between the power distribution terminal and the seed power distribution terminal or the power distribution terminals in the same group as the seed power distribution terminal is smaller than or equal to a preset distance threshold value for each power distribution terminal which is not selected from the plurality of power distribution terminals, dividing the power distribution terminal and the corresponding seed power distribution terminal into a group if the minimum distance is smaller than or equal to the preset distance threshold value, and taking the power distribution terminal as a new seed power distribution terminal if the minimum distance is larger than the preset distance threshold value until the power distribution terminals are traversed to obtain a plurality of power distribution terminal groups.
For example, for A, B, C, D, four power distribution terminals, power distribution terminal a is first selected as a seed power distribution terminal, then, a distance between power distribution terminal B and power distribution terminal a (because there is only one seed power distribution terminal at present, the distance between power distribution terminal B and power distribution terminal a is the minimum distance), and assuming that the distance between power distribution terminal B and power distribution terminal a is greater than a preset distance threshold, power distribution terminal B is taken as a new seed power distribution terminal, i.e., there are two seed power distribution terminals at present. Then, for the distribution terminal C, the distance (i.e., distance BC) between the distribution terminal C and the distribution terminals a (i.e., distance AC) and B, respectively, is determined, and the distribution terminal C and the distribution terminal a are divided into a group provided that the distance AC is smaller than the distance BC and the distance AC is smaller than a preset distance threshold. Then, continuing to determine the distances between the power distribution terminals D and the power distribution terminals A, B, C, and adding the power distribution terminals D to the group of the power distribution terminals a, assuming that the distances between the power distribution terminals D and the power distribution terminals C are the smallest and smaller than the preset distance threshold. That is, at this time, the power distribution terminal and the corresponding seed power distribution terminal are the seed power distribution terminals (i.e., power distribution terminal a) of the group in which the power distribution terminal (power distribution terminal C) having the smallest distance is located. Finally, two power distribution terminal groups are obtained, one group comprising power distribution terminal A, power distribution terminal C and power distribution terminal D, and the other group comprising power distribution terminal B.
And 102, configuring a PLC communication module and a wireless communication module for each power distribution terminal in each power distribution terminal group, so that two power distribution terminals needing to communicate in each power distribution terminal group can communicate in the group in the following way, wherein the two power distribution terminals comprise a source power distribution terminal and a target power distribution terminal.
In some embodiments, a PLC communication module and a wireless communication module may be configured for each power distribution terminal within each power distribution terminal group. The PLC communication module can be used for establishing a PLC communication channel, the wireless communication module can be used for establishing a wireless communication channel, and the wireless communication module can be a Wi-Fi communication module, a 3G communication module, a 4G communication module and the like. On this basis, any two distribution terminals that need to communicate can communicate within the group by means of the following steps 103-105, i.e. the individual distribution terminals within each distribution terminal group communicate.
And step 103, the source power distribution terminal determines the PLC communication module as a main communication module, determines the wireless communication module as a standby communication module, and transmits frame structure data to be transmitted to the target power distribution terminal through a main communication channel corresponding to the main communication module and a standby communication channel corresponding to the standby communication module respectively.
In some embodiments, the source power distribution terminal may load frame structure data into two transmission channels, respectively, for transmission to the target power distribution terminal. Wherein the target power distribution terminal may be determined from the routing table.
And 104, the target power distribution terminal performs backup storage on the second frame structure data received from the standby communication channel to obtain backup data, analyzes the first frame structure data received from the main communication channel, and determines the current communication quality score.
In some embodiments, the target power distribution terminal may perform backup storage on the second frame structure data to obtain backup data, for example, the second frame structure data may be stored in a preset buffer unit. And parsing the first frame structure data and determining a current communication quality score. The first frame structure data may be parsed according to a predetermined parsing rule (link layer protocol), and the parsing rule may include fields included in the first frame structure data and meaning of the fields. For example, the first frame structure data may sequentially contain the following fields: a preamble, delimiter, destination distribution terminal number, source distribution terminal number, transmission time stamp, duration, encapsulated data, verification field, etc. In addition, the number of bits occupied by these fields is also included. For example, the preamble may be a 56-bit sequence, the delimiter may be an 8-bit sequence, etc., and the lengths of other fields may be preset. So that field positioning can be implemented in the first frame structure data according to the length of each field.
On the basis, the first frame structure data can be analyzed to extract the transmission time stamp included in the first frame structure data, and the current transmission delay is determined according to the transmission time stamp and the current time. On the basis, according to the current transmission delays respectively corresponding to a plurality of times in a preset time period, the average delay of each frame structure data of the main communication channel in the preset time period is determined, and in addition, the average packet loss rate of the main communication channel in the preset time period can also be determined. And determining the weighted sum of the average delay and the average packet loss rate as the current communication quality score. Wherein the weights may be pre-specified.
And step 105, if the current communication quality score is smaller than the preset communication quality score threshold, sending a signal representing that the current communication quality score is smaller than the preset communication quality score threshold to the source power distribution terminal so that the source power distribution terminal can determine the wireless communication module as a main communication module and determine the PLC communication module as a standby communication module.
And 106, when the first power distribution terminal group and the second power distribution terminal group in the plurality of power distribution terminal groups are in inter-group communication, determining a first central power distribution terminal from the first power distribution terminal group and determining a second central power distribution terminal from the second power distribution terminal group, wherein the first central power distribution terminal and the second central power distribution terminal are in communication through a wireless communication module.
In some embodiments, communication between the first and second groups of power distribution terminals is performed by the first and second central power distribution terminals via backup communication signals. Wherein the first central power distribution terminal and the second central power distribution terminal may be determined by:
step one, acquiring position information of each power distribution terminal in a first power distribution terminal group to obtain a first position information set;
step two, according to the first position information set, determining a first target power distribution terminal from a first power distribution terminal group as a first central power distribution terminal, wherein the sum of distances between the first target power distribution terminal and all power distribution terminals in the rest power distribution terminals in the first power distribution terminal group is minimum;
step three, acquiring the position information of each power distribution terminal in the second power distribution terminal group to obtain a second position information set;
and step four, determining a second target power distribution terminal from a second power distribution terminal group as a second center power distribution terminal according to the second position information set, wherein the sum of the distances between the second target power distribution terminal and all power distribution terminals in the rest of power distribution terminals in the second power distribution terminal group is minimum.
In some embodiments, the inter-group communication uses wireless communication signals for communication, rather than PLC communication. This is because the inter-group communication is far away, and if PLC communication is used, there is a problem in that signal attenuation is serious, which affects the communication quality. Therefore, wireless communication signals are adopted for communication in the inter-group communication, so that signal attenuation can be reduced, and communication quality is ensured. For intra-group communication, dual-mode communication modes are adopted to be mutually backed up, so that communication interruption caused by a certain channel fault is avoided, and the reliability and stability of the whole system are improved.
The priority of the inter-group frame is higher than that of the intra-group frame, so that the standby channel can transmit inter-group frame data preferentially, two channels can be fully utilized, and the transmission efficiency is improved.
According to the method provided by some embodiments of the present disclosure, a plurality of power distribution terminals are first grouped, so as to obtain a plurality of power distribution terminal groups, and because the distance of communication in the groups is smaller than a preset distance threshold, the communication terminals can be backed up by each other by using a dual-mode communication mode, so that communication interruption caused by a certain channel fault is avoided, and the reliability and stability of the overall system are improved. The preset distance threshold value is the attenuation critical distance of the PLC communication. When the preset distance threshold is exceeded, the attenuation of the PLC communication exceeds the preset attenuation threshold. At this time, if dual mode communication is still used, frequent channel switching is caused and communication quality is poor, which affects stability and reliability of communication. Therefore, for inter-group communication, a wireless communication module is employed for communication. Thereby improving the communication stability and reliability of the whole intelligent power grid in the target area.
In some optional implementations of some embodiments, before grouping the plurality of power distribution terminals in the smart grid of the target area to obtain a plurality of power distribution terminal groups, the method further includes: acquiring a plurality of demand index values of a smart grid in a target area, and inputting the plurality of demand index values into a pre-trained smart grid rating network to obtain a level value of the smart grid; grouping a plurality of distribution terminals in a smart grid of a target area to obtain a plurality of distribution terminal groups, wherein the method comprises the following steps: and if the level value is greater than or equal to the preset level threshold value, grouping a plurality of power distribution terminals in the intelligent power grid of the target area to obtain a plurality of power distribution terminal groups.
In these implementations, the demand indicators may be on-stream time periods, peak loads, geographic levels, and so forth. The smart grid rating network may be a trained regression network (e.g., may be a YOLO network). The training samples may include a demand index value and a corresponding level value. Therefore, communication is performed in a grouping mode only when the level value is larger than or equal to a preset level threshold value, and therefore high reliability and stability of the high-level intelligent power grid are guaranteed. For the lower-level smart grid, for example, a single communication mode can be adopted to communicate according to the needs, and a grouping mode is not needed, so that targeted communication configuration can be realized to adapt to different requirements of the unused smart grid.
In some alternative implementations of some embodiments, although some of the embodiments described above can overcome the drawbacks of single converged communication, higher reliability and stability of the smart grid are guaranteed. However, since the configuration is performed by using the packet method, a problem of collision between intra-group communication and inter-group communication is caused. That is, the second technical problem described in the background section is that there is a problem of communication collision when different communication methods are used between groups. Based on this, in some embodiments of the present disclosure, a frame category field may also be included in the first frame structure data. Wherein, the value of the frame category field can be 0 or 1, which respectively represents intra-group frames or inter-group frames. On the basis, different priorities can be set for different values, for example, the priority of the inter-group frames is higher than that of the intra-group frames, so that the problem of conflict between intra-group communication and inter-group communication is solved.
In some alternative implementations of some embodiments, in order to solve the technical problem three described in the background section, namely, "inter-group communication depends on the central distribution terminals of two distribution terminal groups, and if the central distribution terminal fails, the inter-group communication is seriously affected. In some embodiments of the present disclosure, a first central distribution terminal in a first distribution terminal group may be determined and updated by:
step one, acquiring position information and communication signal intensity of each power distribution terminal in a first power distribution terminal group, and obtaining a first position information set and a first communication signal intensity set;
step two, for each distribution terminal in the first distribution terminal group, determining the sum of the distances between the distribution terminal and the rest of the distribution terminals in the first distribution terminal group, and recording the sum as the distance sum;
step three, for each power distribution terminal in the first power distribution terminal group, determining the score of the power distribution terminal according to the communication signal intensity of the channel corresponding to the power distribution terminal, the fault rate in the historical time period and the sum of the fault rate and the distance; specifically, the scoring may be performed according to a preset scoring table, that is, the communication signal strength, the failure rate in the historical time period, and the sum of the distances are sequentially queried in the scoring table, so as to obtain the score of each item, and then, the scores are added to obtain the score of the power distribution terminal.
Step three, sorting all the power distribution terminals in the first power distribution terminal group according to the scores corresponding to all the power distribution terminals to obtain a first power distribution terminal sequence;
step four, dynamically maintaining the availability of each power distribution terminal in the first power distribution terminal sequence; availability may characterize whether the power distribution terminal is available, which may be indicated by "0" or "1", where "0" and "1" represent "unavailable" and "available", respectively. During initialization, starting to check from the first power distribution terminal sequence head, determining a checked first available power distribution terminal as a first central power distribution terminal, and recording the sequence of the first available power distribution terminal in the first power distribution terminal sequence as N;
and fifthly, if the current first central power distribution terminal fails, starting to check from the (n+1) th power distribution terminal in the first power distribution terminal sequence, and determining the checked first available power distribution terminal as a new first central power distribution terminal.
Therefore, by comprehensively considering the communication signal intensity, the fault rate in the historical time period, the distances and the three factors, the stability of the first central power distribution terminal can be improved and the fault rate can be reduced compared with the single distance sum. On the basis, when the current first central power distribution terminal fails, the first central power distribution terminal can be automatically switched to a new first central power distribution terminal by setting an updating mechanism, so that system communication is prevented from being influenced.
With further reference to fig. 2, as an implementation of the method shown in the foregoing figures, the present disclosure provides some embodiments of an intelligent fusion device for PLC communication and wireless communication in a power communication system, where the device embodiments correspond to those method embodiments shown in fig. 1, and the device may be specifically applied to various electronic devices.
As shown in fig. 2, the intelligent fusion device 200 for PLC communication and wireless communication in the power communication system according to some embodiments includes: a grouping unit 201, configured to group a plurality of power distribution terminals in the smart grid of the target area to obtain a plurality of power distribution terminal groups, where a distance between each power distribution terminal in each power distribution terminal group in the plurality of power distribution terminal groups is smaller than a preset distance threshold, and the preset distance threshold is an attenuation critical distance of PLC communication; a configuration unit 202 configured to configure the PLC communication module and the wireless communication module for each power distribution terminal in each power distribution terminal group, so that two power distribution terminals in each power distribution terminal group perform intra-group communication in the following manner, wherein the two power distribution terminals include a source power distribution terminal and a target power distribution terminal: the source power distribution terminal determines the PLC communication module as a main communication module, determines the wireless communication module as a standby communication module, and transmits frame structure data to be transmitted to the target power distribution terminal through a main communication channel corresponding to the main communication module and a standby communication channel corresponding to the standby communication module respectively; the target power distribution terminal performs backup storage on the second frame structure data received from the standby communication channel to obtain backup data, analyzes the first frame structure data received from the main communication channel and determines the current communication quality score; if the current communication quality score is smaller than a preset communication quality score threshold, a signal representing that the current communication quality score is smaller than the preset communication quality score threshold is sent to the source power distribution terminal, so that the source power distribution terminal determines the wireless communication module as a main communication module and determines the PLC communication module as a standby communication module; the determining unit 203 is configured to determine, when the first power distribution terminal group and the second power distribution terminal group of the plurality of power distribution terminal groups perform inter-group communication, a first center power distribution terminal from the first power distribution terminal group and a second center power distribution terminal from the second power distribution terminal group, respectively, the first center power distribution terminal and the second center power distribution terminal communicating through the wireless communication module.
It will be appreciated that the elements described in the apparatus 200 correspond to the various steps in the method described with reference to fig. 1. Thus, the operations, features and resulting benefits described above for the method are equally applicable to the apparatus 200 and the units contained therein, and are not described in detail herein.
Referring now to fig. 3, a schematic diagram of an electronic device 300 suitable for use in implementing some embodiments of the present disclosure is shown. The electronic device shown in fig. 3 is merely an example and should not impose any limitations on the functionality and scope of use of embodiments of the present disclosure.
As shown in fig. 3, the electronic device 300 may include a processing means 301 (e.g., a central processing unit, a graphics processor, etc.) that may perform various suitable actions and processes in accordance with a program stored in a Read Only Memory (ROM) 302 or a program loaded from a storage means 308 into a Random Access Memory (RAM) 303. In the RAM 303, various programs and data required for the operation of the electronic apparatus 300 are also stored. The processing device 301, the ROM 302, and the RAM 303 are connected to each other via a bus 304. An input/output (I/O) interface 305 is also connected to bus 304.
In general, the following devices may be connected to the I/O interface 305: input devices 306 including, for example, a touch screen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; an output device 307 including, for example, a Liquid Crystal Display (LCD), a speaker, a vibrator, and the like; storage 308 including, for example, magnetic tape, hard disk, etc.; and communication means 309. The communication means 309 may allow the electronic device 300 to communicate with other devices wirelessly or by wire to exchange data. While fig. 3 shows an electronic device 300 having various means, it is to be understood that not all of the illustrated means are required to be implemented or provided. More or fewer devices may be implemented or provided instead. Each block shown in fig. 3 may represent one device or a plurality of devices as needed.
In particular, according to some embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, some embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flow chart. In such embodiments, the computer program may be downloaded and installed from a network via communications device 309, or from storage device 308, or from ROM 302. The above-described functions defined in the methods of some embodiments of the present disclosure are performed when the computer program is executed by the processing means 301.
It should be noted that, the computer readable medium described in some embodiments of the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In some embodiments of the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In some embodiments of the present disclosure, however, the computer-readable signal medium may comprise a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.
In some implementations, the clients, servers may communicate using any currently known or future developed network protocol, such as HTTP (HyperText Transfer Protocol ), and may be interconnected with any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), the internet (e.g., the internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed networks.
The computer readable medium may be contained in the electronic device; or may exist alone without being incorporated into the electronic device.
Computer program code for carrying out operations for some embodiments of the present disclosure may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in some embodiments of the present disclosure may be implemented by means of software, or may be implemented by means of hardware.
The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the invention. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.
Claims (7)
1. A PLC communication and wireless communication intelligent fusion method in a power communication system comprises the following steps:
grouping a plurality of power distribution terminals in a smart grid of a target area to obtain a plurality of power distribution terminal groups, wherein the distance between each power distribution terminal in each power distribution terminal group in the plurality of power distribution terminal groups is smaller than a preset distance threshold, and the preset distance threshold is the attenuation critical distance of PLC communication;
And configuring a PLC communication module and a wireless communication module for each power distribution terminal in each power distribution terminal group so that two power distribution terminals needing to communicate in each power distribution terminal group can communicate in the group in the following way, wherein the two power distribution terminals comprise a source power distribution terminal and a target power distribution terminal:
the source power distribution terminal determines the PLC communication module as a main communication module, determines the wireless communication module as a standby communication module, and transmits frame structure data to be transmitted to the target power distribution terminal through a main communication channel corresponding to the main communication module and a standby communication channel corresponding to the standby communication module respectively;
the target power distribution terminal performs backup storage on the second frame structure data received from the standby communication channel to obtain backup data, analyzes the first frame structure data received from the main communication channel and determines the current communication quality score;
if the current communication quality score is smaller than a preset communication quality score threshold, a signal representing that the current communication quality score is smaller than the preset communication quality score threshold is sent to the source power distribution terminal, so that the source power distribution terminal determines the wireless communication module as a main communication module and determines the PLC communication module as a standby communication module;
When a first distribution terminal group and a second distribution terminal group in the plurality of distribution terminal groups are in inter-group communication, a first central distribution terminal is determined from the first distribution terminal group, a second central distribution terminal is determined from the second distribution terminal group, and the first central distribution terminal and the second central distribution terminal are in communication through the wireless communication module.
2. The method of claim 1, wherein the determining a first central distribution terminal from the first set of distribution terminals and a second central distribution terminal from the second set of distribution terminals, respectively, comprises:
acquiring position information of each power distribution terminal in the first power distribution terminal group to obtain a first position information set;
determining a first target power distribution terminal from the first power distribution terminal group as the first central power distribution terminal according to the first position information set, wherein the sum of the distances between the first target power distribution terminal and the rest power distribution terminals in the first power distribution terminal group is minimum;
acquiring the position information of each power distribution terminal in the second power distribution terminal group to obtain a second position information set;
And determining a second target power distribution terminal from the second power distribution terminal group as the second central power distribution terminal according to the second position information set, wherein the sum of the distances between the second target power distribution terminal and the rest power distribution terminals in the second power distribution terminal group is minimum.
3. The method of claim 2, wherein the parsing the first frame structure data received from the primary communication channel and determining a current communication quality score comprises:
analyzing the first frame structure data to extract a sending time stamp included in the first frame structure data, and determining current transmission delay according to the sending time stamp and current time;
determining average delays of a plurality of frame structure data received from the main communication channel in a preset time period according to current transmission delays respectively corresponding to a plurality of times in the preset time period;
determining an average packet loss rate of the main communication channel in the preset time period;
and determining the weighted sum of the average delay and the average packet loss rate as the current communication quality score.
4. The method of claim 3, wherein prior to grouping the plurality of power distribution terminals in the smart grid of the target area to obtain the plurality of power distribution terminal groups, the method further comprises:
Acquiring a plurality of demand index values of a smart grid in the target area, and inputting the plurality of demand index values into a pre-trained smart grid rating network to obtain a level value of the smart grid; and
grouping the plurality of power distribution terminals in the smart grid of the target area to obtain a plurality of power distribution terminal groups, wherein the method comprises the following steps:
and if the level value is greater than or equal to a preset level threshold value, grouping a plurality of power distribution terminals in the intelligent power grid of the target area to obtain a plurality of power distribution terminal groups.
5. The method of claim 4, wherein grouping the plurality of power distribution terminals in the smart grid of the target area to obtain a plurality of power distribution terminal groups comprises:
acquiring position coordinates of each of a plurality of power distribution terminals in the smart grid;
selecting any one of the plurality of power distribution terminals as a seed power distribution terminal, and determining whether the minimum distance between the power distribution terminal and the seed power distribution terminal or the power distribution terminals in the same group as the seed power distribution terminal is smaller than or equal to a preset distance threshold value according to the position coordinates of each power distribution terminal for each power distribution terminal which is not selected from the plurality of power distribution terminals;
If the power distribution terminal is smaller than or equal to the preset distance threshold value, dividing the power distribution terminal and the corresponding seed power distribution terminal into a group;
and if the power distribution terminal is larger than the preset distance threshold, taking the power distribution terminal as a new seed power distribution terminal until a plurality of power distribution terminals are traversed, and obtaining a plurality of power distribution terminal groups.
6. An intelligent fusion device for PLC communication and wireless communication in a power communication system, comprising:
the grouping unit is configured to group a plurality of distribution terminals in the smart grid of the target area to obtain a plurality of distribution terminal groups, wherein the distance between the distribution terminals in each distribution terminal group in the plurality of distribution terminal groups is smaller than a preset distance threshold, and the preset distance threshold is the attenuation critical distance of PLC communication;
the configuration unit is matched to configure the PLC communication module and the wireless communication module for each power distribution terminal in each power distribution terminal group so that two power distribution terminals needing to communicate in each power distribution terminal group can communicate in the group in the following mode, wherein the two power distribution terminals comprise a source power distribution terminal and a target power distribution terminal:
the source power distribution terminal determines the PLC communication module as a main communication module, determines the wireless communication module as a standby communication module, and transmits frame structure data to be transmitted to the target power distribution terminal through a main communication channel corresponding to the main communication module and a standby communication channel corresponding to the standby communication module respectively;
The target power distribution terminal performs backup storage on the second frame structure data received from the standby communication channel to obtain backup data, analyzes the first frame structure data received from the main communication channel and determines the current communication quality score;
if the current communication quality score is smaller than a preset communication quality score threshold, a signal representing that the current communication quality score is smaller than the preset communication quality score threshold is sent to the source power distribution terminal, so that the source power distribution terminal determines the wireless communication module as a main communication module and determines the PLC communication module as a standby communication module;
and a determining unit configured to determine a first central power distribution terminal from the first power distribution terminal group and a second central power distribution terminal from the second power distribution terminal group, respectively, when the first power distribution terminal group and the second power distribution terminal group of the plurality of power distribution terminal groups are in inter-group communication, the first central power distribution terminal and the second central power distribution terminal being in communication through the wireless communication module.
7. An electronic device, comprising:
one or more processors;
a storage device having one or more programs stored thereon,
When executed by the one or more processors, causes the one or more processors to implement the method of any of claims 1-5.
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