Medium-voltage carrier communication method and system

Abstract

The invention relates to the technical field of carrier communication, and discloses a medium-voltage carrier communication method and system. The method comprises the steps of obtaining a first index set and a second index set, obtaining node positions and matching the node positions with site positions closest to nodes, constructing a distributed relay hardware network, constructing a software relay network and controlling the distributed relay hardware network. The system corresponds to the method. According to the method and the device, the acquisition of the hardware capabilities of the communication equipment and the communication relay equipment is realized by acquiring the index set, and data reference is provided for setting the communication relay equipment; the actual operation state of the communication power line is searched by acquiring the node position, and data reference is provided for setting communication relay equipment; through the construction of a distributed relay hardware network combining an index set and station information, the optimization of communication relay equipment setting is realized; optimized control of a distributed relay hardware network is realized by constructing a software relay network. And finally, optimization of medium-voltage carrier communication is realized.

Description

[0001] The present application relates to the field of carrier communication technology, and specifically to a medium voltage carrier communication method and system. Background Art

[0002] Stable and reliable communication is an important guarantee for maintaining the normal operation of the power grid. Medium voltage carrier communication stands out among many communication methods because of its characteristics such as being able to use existing power lines, adapting to complex environments, strong anti-interference ability and easy implementation. Therefore, it is necessary to further study the characteristics of medium voltage carrier.

[0003] Chinese patent number CN202311099349.0 discloses a medium-voltage carrier communication system based on deep fusion of edge computing, the system includes a data acquisition module for collecting signals and environmental parameters on power lines; a medium-voltage carrier communication module for encoding the collected signals into carrier signals and transmitting the carrier signals to edge computing nodes; the edge computing module includes edge computing nodes and centralized management and coordination modules, the edge computing nodes are used to analyze and process the environmental parameters; the centralized management and coordination module is used to coordinate the resources of edge computing nodes, the cloud platform uses deep learning algorithms to process and analyze the collected data, and returns the analysis results to the edge computing module, and the resources of edge computing nodes are shared and optimized through this system, so as to achieve fast and more accurate acquisition and analysis of data, thereby improving the efficiency and reliability of data transmission; and achieving more accurate data analysis and control. This invention realizes the function of optimizing power information transmission with medium-voltage carrier communication as the carrier, but it is limited to optimizing power communication by sharing node resources, and does not propose a substantial solution to how to improve the medium-voltage carrier communication distance, which can directly affect the quality of power communication. Therefore, it is necessary to study the improvement of medium-voltage carrier communication distance.

[0004] Chinese patent number CN202310979028.3 discloses a distribution terminal signal relay device, and its technical solution includes: a distribution terminal signal relay device, including DTU, data sending module, gateway module and background, DTU communicates with the data sending module through a serial port, the data sending module and the gateway module are connected through a wireless network or a wired network, and the gateway module and the background are connected through a wireless network. The present invention adopts a modular design, and can flexibly choose LORA communication or power line carrier communication, saving a lot of technical transformation investment. However, it only solves the problem of poor communication quality and inability to communicate normally at some distribution terminal installation points, and improves the problem of equipment online rate, and has little effect on optimizing the overall medium-voltage carrier communication distance.

[0005] In summary, the prior art lacks a technical solution for optimizing medium voltage carrier communication. Summary of the invention

[0006] The purpose of this application is to provide a medium voltage carrier communication method and system to solve the technical problems raised in the above background technology.

[0007] To achieve the above objectives, this application discloses the following technical solutions:

[0008] In a first aspect, the present application discloses a medium voltage carrier communication method, the method comprising:

[0009] S1: Acquire a first indicator set of a communication device of a medium voltage carrier and a second indicator set of a communication relay device of a medium voltage carrier, wherein the first indicator set is used to characterize a first communication distance of the communication device, and the second indicator set is used to characterize a second communication distance of the communication relay device;

[0010] S2: Obtain the node location where the signal transmission degradation problem occurs in the communication power line of the medium voltage carrier, and match the site location closest to the node based on the node location;

[0011] S3: constructing a distributed relay hardware network based on the first indicator set, the second indicator set and the site information;

[0012] S4: Building a software relay network based on the distributed relay hardware network;

[0013] S5: Controlling the distributed relay hardware network based on the software relay network.

[0014] Preferably, the first indicator set includes a first transmission distance, signal strength, signal-to-noise ratio, transmission rate, frequency stability, bit error rate, anti-interference capability and a first receiving sensitivity;

[0015] The second indicator set includes a second transmission distance, a transmission power, a second receiving sensitivity, a signal gain, a noise figure, a frequency characteristic, an impedance matching and a signal bandwidth.

[0016] Preferably, the obtaining of the node location where the signal transmission degradation problem occurs in the communication power line of the medium voltage carrier specifically includes:

[0017] The communication power line is traversed to perform signal detection, and the node positions of the detected nodes having signal transmission degradation problems are numbered and output.

[0018] Preferably, the matching of the site location closest to the node based on the node location specifically includes:

[0019] The first site matching formula is used to match the nearest site of the node. The first site matching formula is specifically:

[0020] LOC site_k =min(LOCsite_set -POS node_j )=min(LOC site_i -POS node_j )

[0021] Among them, LOC site_i ∈LOC site_set and LOC site_set Represents a collection of site locations, LOC site_i Indicates the location of the site numbered i, POS node_j Indicates the position of the node numbered j, min() is the minimum operator, LOC site_k It represents the location of the nearest site numbered k output by the node after the minimum operation, and k∈i.

[0022] Preferably, the construction of a distributed relay hardware network specifically includes:

[0023] The first communication distance is calculated using a first communication distance calculation formula, where the first communication distance calculation formula is specifically:

[0024] CD first =(1-α)TD first

[0025] Among them, TD first is the first transmission distance, α is a communication device correction parameter, and the communication device correction parameter is limited by each index in the first index set except the first transmission distance, CD first is a first communication distance;

[0026] The second communication distance is calculated using a second communication distance calculation formula, where the second communication distance calculation formula is specifically:

[0027] CD second =(1-β)TD second

[0028] Among them, TD second is the second transmission distance, β is the communication relay device correction parameter, and the communication relay device correction parameter is limited by each index in the second index set except the second transmission distance, CD second is the second communication distance.

[0029] Preferably, the construction of a distributed relay hardware network further includes:

[0030] Acquire a first setting condition of the existing communication device of the communication power line;

[0031] Based on the first communication distance, obtaining a portion of the first setting situation in which the distance between the communication devices is greater than or equal to the first communication distance, and using the second communication distance to divide the portion into a plurality of segments connected end to end, setting the intersection of the end to end as a distributed relay hardware network preset point, and numbering the distributed relay hardware network preset points and then outputting their corresponding distributed relay hardware network preset point positions;

[0032] The distributed relay hardware network pre-set points are reorganized using the site locations, the reorganization process comprising:

[0033] The second site matching formula is used to match the nearest site to the pre-set point of the distributed relay hardware network. The second site matching formula is specifically:

[0034] LOC site_a =min(LOC site_k_b -POS DP_c )

[0035] Among them, LOC site_k_b represents the site location numbered b in the site location set obtained after matching by the first site matching formula, and b∈k, POS DP_c Indicates the preset point position of the distributed relay hardware network numbered c, min() is the minimum operator, LOC site_a It represents the location of the station numbered a closest to the preset point of the distributed relay hardware network output after the minimum value operation, and a∈b;

[0036] At the obtained LOC site_a The communication relay equipment is set at the corresponding site location.

[0037] Preferably, the construction of the software relay network specifically includes:

[0038] A preset software relay network, wherein the software relay network is configured to control the communication relay device;

[0039] Connect the communication relay device that has been set up to the software relay network.

[0040] Preferably, the controlling the distributed relay hardware network based on the software relay network specifically includes:

[0041] The communication power line is monitored for communication, and when a signal transmission degradation problem is detected, the software relay network calls the corresponding communication relay device and opens a communication connection with the communication device.

[0042] Preferably, the communication expected to occur on the communication power line within a period of time is defined as a communication plan;

[0043] The controlling of the distributed relay hardware network based on the software relay network further includes:

[0044] The software relay network obtains the communication plan;

[0045] Based on the communication plan, the overlapping part with the distributed relay hardware network is matched, and the communication relay device corresponding to the overlapping part is called, and the communication connection between it and the communication device is opened.

[0046] In a second aspect, the present application discloses a medium voltage carrier communication system, which is applicable to the medium voltage carrier communication method as described in any one of the above items, and the system includes:

[0047] An indicator set acquisition module, wherein the indicator set acquisition module is configured to: acquire a first indicator set of a communication device of a medium voltage carrier and a second indicator set of a communication relay device of a medium voltage carrier, wherein the first indicator set is used to characterize a first communication distance of the communication device, and the second indicator set is used to characterize a second communication distance of the communication relay device;

[0048] A node acquisition module, wherein the node acquisition module is configured to: acquire a node location where a signal transmission degradation problem occurs in a communication power line of a medium voltage carrier, and match a site location closest to the node based on the node location;

[0049] A distributed relay hardware network construction module, wherein the distributed relay hardware network construction module is configured to construct a distributed relay hardware network based on the first indicator set, the second indicator set and the site information;

[0050] a software relay network construction module, wherein the software relay network construction module is configured to construct a software relay network based on the distributed relay hardware network;

[0051] A distributed relay hardware network control module is configured to control the distributed relay hardware network based on the software relay network.

[0052] Beneficial effects: The medium-voltage carrier communication method and system of the present application realizes the acquisition of the hardware capabilities of communication equipment and communication relay equipment by acquiring an indicator set, providing a data reference for setting up communication relay equipment; realizes the survey of the actual operating status of communication power lines by acquiring node locations, providing a data reference for setting up communication relay equipment; optimizes the settings of communication relay equipment by building a distributed relay hardware network that combines indicator sets and site information; and realizes optimized control of distributed relay hardware networks by building a software relay network. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0054] Figure 1 A flowchart of a medium voltage carrier communication method provided in an embodiment of the present application;

[0055] Figure 2 A schematic block diagram of a medium voltage carrier communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0057] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0058] The first aspect of this embodiment discloses Figure 1 A medium voltage carrier communication method is shown, the method comprising:

[0059] S1: Acquire a first indicator set of a communication device of a medium voltage carrier and a second indicator set of a communication relay device of a medium voltage carrier, wherein the first indicator set is used to characterize a first communication distance of the communication device, and the second indicator set is used to characterize a second communication distance of the communication relay device;

[0060] S2: Obtain the node location where the signal transmission degradation problem occurs in the communication power line of the medium voltage carrier, and match the site location closest to the node based on the node location;

[0061] S3: construct a distributed relay hardware network based on the first indicator set, the second indicator set and the site information;

[0062] S4: Building a software relay network based on a distributed relay hardware network;

[0063] S5: Control the distributed relay hardware network based on the software relay network.

[0064] By acquiring the indicator set, the hardware capabilities of the communication equipment and communication relay equipment are acquired, providing a data reference for the setting of the communication relay equipment; by acquiring the node location, the actual operating status of the communication power line is surveyed, providing a data reference for the setting of the communication relay equipment; by combining the indicator set and the site information to build a distributed relay hardware network, the setting of the communication relay equipment is optimized; by building a software relay network, the optimized control of the distributed relay hardware network is achieved.

[0065] Specifically, the first indicator set includes a first transmission distance, signal strength, signal-to-noise ratio, transmission rate, frequency stability, bit error rate, anti-interference capability, and a first receiving sensitivity;

[0066] The second indicator set includes a second transmission distance, a transmission power, a second receiving sensitivity, a signal gain, a noise figure, a frequency characteristic, an impedance matching, and a signal bandwidth.

[0067] Specifically, obtaining the node location where the signal transmission degradation problem occurs in the communication power line of the medium voltage carrier includes:

[0068] The communication power lines are traversed to perform signal detection, and the node positions of the detected nodes with signal transmission degradation problems are numbered and output.

[0069] Specifically, the node location is matched with the site location closest to the node, including:

[0070] It should be noted that in this embodiment, the communication relay equipment is set at the site to facilitate the subsequent equipment supervision and maintenance;

[0071] The first site matching formula is used to match the nearest site of the node. The first site matching formula is specifically:

[0072] LOC site_k =min(LOC site_set -POS node_j )=min(LOC site_i -POS node_j )

[0073] Among them, LOC site_i ∈LOC site_set and LOC site_set Represents a collection of site locations, LOC site_i Indicates the location of the site numbered i, POS node_j Indicates the position of the node numbered j, min() is the minimum operator, LOC site k It represents the site position numbered k closest to the node output after the minimum value operation, and k∈i; it should be noted that the process of solving the minimum value in this embodiment is to subtract each site position in the set of site positions from the node position one by one to obtain the minimum value.

[0074] Specifically, building a distributed relay hardware network includes:

[0075] The first communication distance is calculated using a first communication distance calculation formula, and the first communication distance calculation formula is specifically:

[0076] CD first =(1-α)TD first

[0077] Among them, TD first is the first transmission distance, α is the communication device correction parameter, and the communication device correction parameter is limited by each indicator in the first indicator set except the first transmission distance. It should be noted that the conditions limited here are technical indicators well known to those skilled in the art, which characterize the negative impact of each indicator on the first transmission distance. CD first is a first communication distance;

[0078] The second communication distance is calculated using the second communication distance calculation formula, and the second communication distance calculation formula is specifically:

[0079] CD second =(1-β)TD second

[0080] Among them, TD second is the second transmission distance, β is the communication relay device correction parameter. It should be noted that the conditions here are technical indicators known to those skilled in the art, which characterize the negative impact of various indicators on the second transmission distance. The communication relay device correction parameter is limited to various indicators in the second indicator set except the second transmission distance. CDsecond is the second communication distance.

[0081] Specifically, building a distributed relay hardware network also includes:

[0082] Acquire a first setting condition of existing communication equipment of the communication power line;

[0083] Based on the first communication distance, a portion of the distance between the communication devices in the first setting situation is obtained, in which the distance between the communication devices is greater than or equal to the first communication distance, and the portion is divided into a plurality of segments connected end to end using the second communication distance, and the intersection of the end to end is set as a distributed relay hardware network preset point, and the distributed relay hardware network preset point is numbered and then the corresponding distributed relay hardware network preset point position is output;

[0084] The pre-set points of the distributed relay hardware network are reorganized using the site locations. The reorganization process includes:

[0085] The second site matching formula is used to match the nearest site to the pre-set point of the distributed relay hardware network. The second site matching formula is specifically:

[0086] LOC site a =min(LOC site k b -POS DP c )

[0087] Among them, LOC site_k_b represents the site location numbered b in the site location set obtained after matching by the first site matching formula, and b∈k, POS DP_c Indicates the preset point position of the distributed relay hardware network numbered c, min() is the minimum operator, LOC site_a represents the site position numbered a closest to the preset point of the distributed relay hardware network output after the minimum value operation, and a∈b; It should be noted that the process of solving the minimum value in this embodiment is to subtract each site position in the set of site positions from the preset point of the distributed relay hardware network one by one, so as to obtain the minimum value;

[0088] At the obtained LOC site_a Communication relay equipment is set up at the corresponding site locations.

[0089] By combining the first communication distance, the second communication distance and the nearest site location of the node obtained by the first site matching formula, a comprehensive consideration of the inherent properties of the hardware device and the hardware device in the current power line environment is achieved, thereby optimizing the settings of the communication relay device.

[0090] Specifically, building a software relay network includes:

[0091] A preset software relay network, the software relay network is configured to control the communication relay device;

[0092] Connect the set communication relay device to the software relay network, that is, connect the on / off control right of the communication relay device to the software relay network.

[0093] Specifically, the distributed relay hardware network is controlled based on the software relay network, including:

[0094] Communication monitoring is performed on the communication power line. The communication monitoring method adopted in this embodiment is any one of the existing communication monitoring technologies. When a signal transmission degradation problem is detected, the software relay network calls the corresponding communication relay device. The rule for calling the corresponding communication relay device in this embodiment is based on the location where the signal transmission degradation problem is detected, calling the nearest communication relay device and opening its communication connection with the communication device.

[0095] Specifically, the communication that is expected to occur over a period of time on the communication power line is defined as communication planning;

[0096] Control of distributed relay hardware network based on software relay network, including:

[0097] Software relay network obtains communication plan;

[0098] Based on the communication planning, the overlapping part with the distributed relay hardware network is matched, and the communication relay device corresponding to the overlapping part is called, and the communication connection with the communication device is opened, so as to realize the advance planning of the communication power line, thereby reducing the frequency of detecting signal transmission degradation problems.

[0099] The second aspect of this embodiment discloses Figure 2 A medium voltage carrier communication system is shown, the system is applicable to the medium voltage carrier communication method as described in any one of the above items, and the system includes:

[0100] An indicator set acquisition module, the indicator set acquisition module is configured to: acquire a first indicator set of a communication device of a medium voltage carrier and a second indicator set of a communication relay device of a medium voltage carrier, the first indicator set being used to characterize a first communication distance of the communication device, and the second indicator set being used to characterize a second communication distance of the communication relay device;

[0101] A node acquisition module, the node acquisition module is configured to: acquire the node location where the signal transmission degradation problem occurs in the communication power line of the medium voltage carrier, and match the station location closest to the node based on the node location;

[0102] A distributed relay hardware network construction module, the distributed relay hardware network construction module is configured to construct a distributed relay hardware network based on the first indicator set, the second indicator set and the site information;

[0103] A software relay network construction module, the software relay network construction module is configured to construct a software relay network based on a distributed relay hardware network;

[0104] The distributed relay hardware network control module is configured to control the distributed relay hardware network based on the software relay network.

[0105] In summary, the medium-voltage carrier communication method and system of this embodiment realizes the acquisition of the hardware capabilities of the communication equipment and the communication relay equipment by acquiring the indicator set, providing a data reference for the setting of the communication relay equipment; realizes the survey of the actual operating status of the communication power line by acquiring the node position, providing a data reference for the setting of the communication relay equipment; realizes the optimization of the communication relay equipment setting by building a distributed relay hardware network combining the indicator set and site information; and realizes the optimized control of the distributed relay hardware network by building a software relay network.

[0106] In the embodiments provided in the present application, it should be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code or any appropriate combination thereof. For hardware implementation, the processor can be implemented in one or more of the following units: application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, other electronic units designed to implement the functions described herein or their combination. For software implementation, part or all of the flow of the embodiment can be completed by instructing the relevant hardware through a computer program. When implemented, the above program can be stored in a computer-readable storage medium or transmitted as one or more instructions or codes on a computer-readable storage medium. Computer-readable storage media include computer storage media and communication media, wherein the communication medium includes any medium that is convenient for transmitting a computer program from one place to another. The storage medium can be any available medium that a computer can access. The computer-readable storage medium can include but is not limited to RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer.

[0107] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A medium voltage carrier communication method, characterized in that: The method includes: S1: Acquire a first indicator set of a communication device of a medium voltage carrier and a second indicator set of a communication relay device of a medium voltage carrier, wherein the first indicator set is used to characterize a first communication distance of the communication device, and the second indicator set is used to characterize a second communication distance of the communication relay device; S2: Obtain the node location where the signal transmission degradation problem occurs in the communication power line of the medium voltage carrier, and match the site location closest to the node based on the node location; S3: constructing a distributed relay hardware network based on the first indicator set, the second indicator set and the site information; S4: Building a software relay network based on the distributed relay hardware network; S5: Controlling the distributed relay hardware network based on the software relay network.

2. The medium voltage carrier communication method according to claim 1, characterized in that: The first indicator set includes a first transmission distance, signal strength, signal-to-noise ratio, transmission rate, frequency stability, bit error rate, anti-interference capability and a first receiving sensitivity; The second indicator set includes a second transmission distance, a transmission power, a second receiving sensitivity, a signal gain, a noise figure, a frequency characteristic, an impedance matching and a signal bandwidth.

3. The medium voltage carrier communication method according to claim 2, characterized in that: The obtaining of the node location where the signal transmission degradation problem occurs in the communication power line of the medium voltage carrier specifically includes: The communication power line is traversed to perform signal detection, and the node positions of the detected nodes having signal transmission degradation problems are numbered and output.

4. The medium voltage carrier communication method according to claim 3, characterized in that: The matching of the site location closest to the node based on the node location specifically includes: The first site matching formula is used to match the nearest site of the node. The first site matching formula is specifically: PLACE site_k =min(LOCATION site_set Possibly node_j )=min(LOC site_i Possibly node_j ) Among them, LOC site_i ∈LOC site_set and LOC site_set Represents a collection of site locations, LOC site_i Indicates the location of the site numbered i, POS node_j Indicates the position of the node numbered j, min() is the minimum operator, LOC site_k It represents the location of the nearest site numbered k output by the node after the minimum operation, and k∈i.

5. The medium voltage carrier communication method according to claim 4, characterized in that: The construction of a distributed relay hardware network specifically includes: The first communication distance is calculated using a first communication distance calculation formula, where the first communication distance calculation formula is specifically: CD first =(1-a)TD first Among them, TD first is the first transmission distance, α is a communication device correction parameter, and the communication device correction parameter is limited by each index in the first index set except the first transmission distance, CD first is a first communication distance; The second communication distance is calculated using a second communication distance calculation formula, where the second communication distance calculation formula is specifically: CD second =(1-β)TD second Among them, TD second is the second transmission distance, β is the communication relay device correction parameter, and the communication relay device correction parameter is limited by each index in the second index set except the second transmission distance, CD second is the second communication distance.

6. The medium voltage carrier communication method according to claim 5, characterized in that: The construction of the distributed relay hardware network also includes: Acquire a first setting condition of the existing communication device of the communication power line; Based on the first communication distance, obtaining a portion of the first setting situation in which the distance between the communication devices is greater than or equal to the first communication distance, and using the second communication distance to divide the portion into a plurality of segments connected end to end, setting the intersection of the end to end as a distributed relay hardware network preset point, and numbering the distributed relay hardware network preset points and then outputting their corresponding distributed relay hardware network preset point positions; The distributed relay hardware network pre-set points are reorganized using the site locations, the reorganization process comprising: The second site matching formula is used to match the nearest site to the pre-set point of the distributed relay hardware network. The second site matching formula is specifically: PLACE site_a =min(LOCATION site_k_b Possibly DP_c ) Among them, LOC site_k_b represents the site location numbered b in the site location set obtained after matching by the first site matching formula, and b∈k, POS DP_c Indicates the preset point position of the distributed relay hardware network numbered c, min() is the minimum operator, LOC site_a It represents the location of the station numbered a closest to the preset point of the distributed relay hardware network output after the minimum value operation, and a∈b; At the obtained LOC site_a The communication relay equipment is set at the corresponding site location.

7. The medium voltage carrier communication method according to claim 6, characterized in that: The construction of the software relay network specifically includes: A preset software relay network, wherein the software relay network is configured to control the communication relay device; Connect the communication relay device that has been set up to the software relay network.

8. The medium voltage carrier communication method according to claim 7, characterized in that: The controlling of the distributed relay hardware network based on the software relay network specifically includes: The communication power line is monitored for communication, and when a signal transmission degradation problem is detected, the software relay network calls the corresponding communication relay device and opens a communication connection with the communication device.

9. The medium voltage carrier communication method according to claim 8, characterized in that: defining the communication expected to occur over a period of time on the communication power line as a communication plan; The controlling of the distributed relay hardware network based on the software relay network further includes: The software relay network obtains the communication plan; Based on the communication plan, the overlapping part with the distributed relay hardware network is matched, and the communication relay device corresponding to the overlapping part is called, and the communication connection between it and the communication device is opened.

10. A medium voltage carrier communication system, the system being applicable to the medium voltage carrier communication method according to any one of claims 1 to 9, characterized in that: The system includes: An indicator set acquisition module, wherein the indicator set acquisition module is configured to: acquire a first indicator set of a communication device of a medium voltage carrier and a second indicator set of a communication relay device of a medium voltage carrier, wherein the first indicator set is used to characterize a first communication distance of the communication device, and the second indicator set is used to characterize a second communication distance of the communication relay device; A node acquisition module, wherein the node acquisition module is configured to: acquire a node location where a signal transmission degradation problem occurs in a communication power line of a medium voltage carrier, and match a site location closest to the node based on the node location; A distributed relay hardware network construction module, wherein the distributed relay hardware network construction module is configured to construct a distributed relay hardware network based on the first indicator set, the second indicator set and the site information; a software relay network construction module, wherein the software relay network construction module is configured to construct a software relay network based on the distributed relay hardware network; A distributed relay hardware network control module is configured to control the distributed relay hardware network based on the software relay network.

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