Power distribution network communication system

Abstract

The utility model discloses a power distribution network communication system, and relates to the technical field of power communication, the power distribution network communication system comprises at least one power distribution device used for collecting data of at least one power distribution network in a power distribution network, and the at least one power distribution device comprises at least one of a power distribution transformer, an intelligent circuit breaker, an intelligent low-voltage shunt monitoring device and an intelligent electric meter; and the intelligent fusion terminal is connected with the power distribution equipment through the power line carrier network and the wireless network, and is used for receiving the distribution network data sent by the power distribution equipment through the power line carrier network or the wireless network so as to realize power distribution network communication. Various communication modes are provided between the intelligent fusion terminal and the power distribution network equipment through the power carrier network and the wireless network, and the reliability of the power distribution network system is improved.

Description

Technical Field

[0001] The present application relates to the field of power communication technology, and in particular to a distribution network communication system. Background Art

[0002] In distribution network communication systems, intelligent converged terminals typically communicate with distribution equipment using broadband High Power Line Communication (HPLC) or radio frequency (RF) technology. Due to the inherent communication performance limitations of HPLC and RF technologies, the use of a single communication method between intelligent converged terminals and distribution equipment results in unreliable data transmission, resulting in low reliability of the distribution network communication system. Therefore, improving the reliability of distribution network systems is an urgent issue. Utility Model Content

[0003] The main purpose of this application is to propose a distribution network communication system, aiming to solve the technical problem of how to improve the reliability of the distribution network system.

[0004] To achieve the above objectives, the present application proposes a distribution network communication system, which includes:

[0005] At least one power distribution device, configured to collect at least one distribution network data in the distribution network, wherein the at least one power distribution device comprises at least one of a distribution transformer, an intelligent circuit breaker, an intelligent low-voltage branch monitoring device, and an intelligent meter;

[0006] The intelligent fusion terminal is connected to each distribution device through the power carrier network and the wireless network, and is used to receive the distribution network data sent by each distribution device through the power carrier network or the wireless network to realize distribution network communication.

[0007] In one embodiment, the wireless network includes a radio frequency network and a Wi-Fi network;

[0008] The distribution transformer is connected to the intelligent fusion terminal through the power carrier network, and the collected transformer data is sent to the intelligent fusion terminal through the power carrier network;

[0009] The intelligent circuit breaker is connected to the intelligent fusion terminal via the power carrier network, the radio frequency network, and the Wi-Fi network, and is used to send the collected line status data to the intelligent fusion terminal via any one of the power carrier network, the radio frequency network, and the Wi-Fi network;

[0010] An intelligent low-voltage branch monitoring device is connected to the intelligent fusion terminal via a power carrier network, a radio frequency network, and a Wi-Fi network, and is used to send the collected branch status data to the intelligent fusion terminal via any one of the power carrier network, the radio frequency network, and the Wi-Fi network;

[0011] The smart meter is connected to the smart fusion terminal through the power carrier network, radio frequency network and Wi-Fi network, and is used to send the collected power consumption data to the smart fusion terminal through any one of the power carrier network, radio frequency network and Wi-Fi network.

[0012] In one embodiment, the Wi-Fi network includes:

[0013] a first wireless gateway connected to the intelligent circuit breaker via a first serial port module, and configured to receive line status data sent by the intelligent circuit breaker;

[0014] The second wireless gateway is connected to the intelligent low-voltage branch monitoring device through the second serial port module, and is used to receive branch status data sent by the intelligent low-voltage branch monitoring device;

[0015] a third wireless gateway connected to the smart meter via a third serial port module, and configured to receive the power consumption data sent by the smart meter;

[0016] The wireless router is connected to the intelligent fusion terminal through the first wired module, and is used to wirelessly receive line status data forwarded by the first wireless gateway, branch status data forwarded by the second wireless gateway, and power consumption data forwarded by the third wireless gateway, and send the line status data, branch status data, and power consumption data to the intelligent fusion terminal.

[0017] In one embodiment, the power distribution network communication system further includes:

[0018] The power distribution master station is connected to the intelligent fusion terminal through the communication network and / or serial port network, and is used to receive the distribution network data sent by the intelligent fusion terminal through the communication network or serial port network to realize distribution network management.

[0019] In one embodiment, the communication network includes a second wired module and a mobile communication module.

[0020] In one embodiment, the serial port module and the serial port network include an RS485 interface or an RS232 interface.

[0021] In one embodiment, the first wired module or the second wired module includes an RJ45 interface.

[0022] In one embodiment, the mobile communication module includes a 4G module.

[0023] In one embodiment, the power line carrier network includes a power line carrier chip and an exchange module, the radio frequency network includes an edge radio frequency transceiver, the first wired module includes a first edge wired interface, the second wired module includes a second edge wired interface, the mobile communication module includes an edge mobile communication interface, and the serial port network includes an edge serial interface;

[0024] The power line carrier chip, the exchange module, the edge RF transceiver, the first edge wired interface, the second edge wired interface, the edge mobile communication interface, and the edge serial interface are all arranged in the intelligent fusion terminal.

[0025] In one embodiment, the wireless network includes a radio frequency network, and any one of a Wi-Fi network, a ZigBee network, and a LoRa network.

[0026] One or more technical solutions proposed in this application have at least the following technical effects:

[0027] The technical solution of the present application, by setting up a power carrier network and a wireless network in the distribution network communication system, enables the intelligent fusion terminal and the distribution network equipment to choose to transmit data through the power carrier network or the wireless network according to actual conditions, thereby providing a variety of communication modes between the intelligent fusion terminal and the distribution network equipment through the power carrier network and the wireless network, thereby improving the reliability of the distribution network system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0029] Figure 1 This is a structural diagram of the first embodiment of the distribution network communication system provided in this application.

[0030] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0032] It should be noted that in this application, the terms "include", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a device or system 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 device or system. In the absence of further restrictions, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the device or system including the element.

[0033] In this application, unless otherwise specified or limited, the terms "connection" and "fixed" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] In this application, if there are descriptions involving "first," "second," etc., such descriptions are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0035] In this application, suffixes such as "network," "component," or "network" used to represent elements are used only to facilitate the description of this application and have no specific meaning in themselves. Therefore, "network," "component," or "network" can be used interchangeably. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood based on the specific circumstances. In addition, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0036] In the distribution network communication system, the intelligent fusion terminal usually communicates with the distribution equipment based on broadband power line communication (High Power Line Communication, HPLC) or radio frequency (Radio Frequency, RF) technology.

[0037] Among them, HPLC has the following problems:

[0038] Signal attenuation: HPLC has limited coverage, and the signal on the power line will attenuate as the distance increases, resulting in unreliable data transmission. Repeaters are usually required to enhance the signal.

[0039] Bandwidth limitations: Compared with dedicated communication lines, the bandwidth of power lines is more limited.

[0040] Interference problem: Noise and interference on power lines have a significant impact on communication quality.

[0041] Security issues: Power line communications face a greater risk of hacker attacks and data leaks.

[0042] Power supply dependence: The communication quality of power lines will be affected by the stability of the power supply.

[0043] RF technology has the following problems:

[0044] Security issues: RF technology's wireless signals are more susceptible to unauthorized access and interference.

[0045] Signal coverage limitations: Signal strength is easily affected by distance, obstacles and environmental factors.

[0046] Bandwidth limitations: Although speeds have increased, wireless communications typically still have lower bandwidth than wired connections.

[0047] Interference and congestion: Wireless spectrum resources are limited, and the simultaneous use of multiple distribution devices may cause signal interference and network congestion.

[0048] In summary, both HPLC and RF technologies have their own communication performance limitations. When the power grid environment changes, such as load changes or line loss changes, it may cause fluctuations in communication performance. If a single communication method is used between the intelligent fusion terminal and the distribution equipment for distribution network data transmission, the possibility of data transmission failure is high, making the distribution network data transmission unreliable, and thus the reliability of the distribution network communication system is low.

[0049] In order to solve the above technical problems, the present application proposes a distribution network communication system.

[0050] See also Figure 1 , an embodiment of the present application provides a power distribution network communication system, which may include:

[0051] At least one power distribution device, configured to collect at least one distribution network data in the distribution network, the at least one power distribution device comprising at least one of a distribution transformer 30, an intelligent circuit breaker 40, an intelligent low-voltage branch monitoring device 50, and a smart meter 60;

[0052] Power carrier network and wireless network are used to connect various power distribution equipment and intelligent fusion terminals;

[0053] The intelligent fusion terminal 20 is used to receive the distribution network data sent by each distribution device through the power carrier network or the wireless network to realize the distribution network communication.

[0054] It should be noted that different types of distribution equipment in the distribution network communication system can communicate with the intelligent fusion terminal through the power carrier network and / or wireless network to achieve data transmission. In actual use, the distribution transformer communicates with the intelligent fusion terminal through the power carrier network. Smart circuit breakers, smart low-voltage distribution monitoring terminal units (LTUs), and smart meters can also communicate with the intelligent fusion terminal through the power carrier network and wireless network.

[0055] The wireless network may include at least one of a radio frequency network, a Wi-Fi network, a ZigBee network, and a LoRa network.

[0056] It can be understood that the distribution equipment in the distribution network communication system may include at least one of a distribution transformer 30, an intelligent circuit breaker 40, an intelligent low-voltage branch monitoring device 50 and a smart meter 60, and the number of distribution equipment of the same type in the distribution network communication system is determined according to the actual scale of the power grid.

[0057] In the distribution network communication system, the intelligent fusion terminal is an edge device that can realize the analysis and management of distribution network data, and the power distribution equipment is an end-side device that can realize the collection of distribution network data.

[0058] In a feasible implementation, the wireless network may include a radio frequency network, and any one of a Wi-Fi network, a ZigBee network, and a LoRa network.

[0059] It should be noted that wireless networks can include a radio frequency network and a Wi-Fi network, a radio frequency network and a ZigBee network, or a radio frequency network and a LoRa network. In this embodiment, two wireless networks are set up in the power distribution network system. Through redundancy design, different communication channels can complement each other's blind spots, thereby achieving a more reliable communication network.

[0060] It is understandable that the radio frequency network is implemented through RF (Radio Frequency) technology and can provide flexible wireless connections.

[0061] In a feasible embodiment, the wireless network may include a radio frequency network and a Wi-Fi network;

[0062] The distribution transformer 30 is connected to the intelligent fusion terminal 20 via the power carrier network, and the collected transformer data is sent to the intelligent fusion terminal 20 via the power carrier network;

[0063] The intelligent circuit breaker 40 is connected to the intelligent fusion terminal 20 via the power carrier network, the radio frequency network, and the Wi-Fi network, and is used to send the collected line status data to the intelligent fusion terminal 20 via any one of the power carrier network, the radio frequency network, and the Wi-Fi network;

[0064] The intelligent low-voltage branch monitoring device 50 is connected to the intelligent fusion terminal 20 via the power carrier network, the radio frequency network, and the Wi-Fi network, and is used to send the collected branch status data to the intelligent fusion terminal 20 via any one of the power carrier network, the radio frequency network, and the Wi-Fi network;

[0065] The smart meter 60 is connected to the smart fusion terminal 20 through the power carrier network, the radio frequency network and the Wi-Fi network, and is used to send the collected power consumption data to the smart fusion terminal 20 through any one of the power carrier network, the radio frequency network and the Wi-Fi network.

[0066] It should be noted that, taking wireless networks including radio frequency networks and Wi-Fi networks as an example, Figure 1 As shown, the intelligent fusion terminal 20 is connected to the current transformer (CT) and potential transformer (PT) of the distribution transformer 30 via power lines, enabling communication between the intelligent fusion terminal 20 and the distribution transformer 30. The intelligent circuit breaker 40, the intelligent low-voltage branch monitoring device 50, and the smart meter 60 are all connected to the intelligent fusion terminal 20 via the power carrier network, the radio frequency network, and the Wi-Fi network.

[0067] The CT and PT of the distribution transformer 30 can be used to collect transformer data, such as the current and voltage on the low-voltage side of the distribution transformer 30. After receiving this transformer data, the intelligent fusion terminal 20 can use its own algorithm to calculate the active power, reactive power, power factor, and electrical energy on the low-voltage side of the distribution transformer 30. It can also analyze the power quality of the low-voltage side of the distribution transformer 30. Line status data refers to the status data of the line where the intelligent circuit breaker 40 is located, shunt status data refers to the status data of the shunt where the intelligent low-voltage shunt monitoring device 50 is located, and energy consumption data refers to the energy consumption data of the line where the smart meter 60 is located.

[0068] The intelligent circuit breaker 40 , the intelligent low-voltage branch monitoring device 50 and the intelligent electric meter 60 are all provided with communication modules corresponding to the power carrier network, the radio frequency network and the Wi-Fi network to realize communication with the intelligent fusion terminal 20 .

[0069] It can be understood that, on the one hand, the intelligent circuit breaker 40, the intelligent low-voltage branch monitoring device 50 and the smart meter 60 are all connected to the intelligent fusion terminal 20 through power lines, and wired communication with the intelligent fusion terminal 20 is achieved through HPLC. On the other hand, they are wirelessly connected to the intelligent fusion terminal 20 through the radio frequency network and the Wi-Fi network, so that in actual use, the intelligent fusion terminal 20 can freely switch communication channels according to the signal strength of different networks.

[0070] In one feasible implementation, the Wi-Fi network may include:

[0071] The first wireless gateway is connected to the intelligent circuit breaker 40 through the first serial port module and is used to receive the line status data sent by the intelligent circuit breaker 40;

[0072] The second wireless gateway is connected to the intelligent low-voltage branch monitoring device 50 through the second serial port module, and is used to receive the branch status data sent by the intelligent low-voltage branch monitoring device 50;

[0073] a third wireless gateway connected to the smart meter 60 via a third serial port module, and configured to receive the power consumption data sent by the smart meter 60;

[0074] The wireless router 70 is connected to the intelligent fusion terminal 20 through the first wired module, and is used to wirelessly receive the line status data forwarded by the first wireless gateway, the branch status data forwarded by the second wireless gateway, and the power consumption data forwarded by the third wireless gateway, and send the line status data, branch status data and power consumption data to the intelligent fusion terminal 20.

[0075] It should be noted that if Figure 1 As shown, in order to realize the Wi-Fi network, serial ports can be set in the intelligent circuit breaker 40, the intelligent low-voltage branch monitoring device 50 and the smart meter 60, and the corresponding wireless gateways can be connected through the serial ports. A first wired module is set to connect the wireless router 70 and the intelligent fusion terminal 20, so that the Wi-Fi network between the intelligent circuit breaker 40, the intelligent low-voltage branch monitoring device 50 and the smart meter 60 and the intelligent fusion terminal 20 is realized through the wireless connection between the wireless gateway and the wireless router 70.

[0076] It can be understood that the intelligent circuit breaker 40, the intelligent low-voltage branch monitoring device 50 and the smart meter 60 each have a unique device address. After the intelligent fusion terminal 20 receives the network distribution data forwarded by the wireless router 70, it can determine the network distribution device corresponding to each network distribution data according to the device address corresponding to each network distribution data, so that there will be no conflict between the network distribution data in the Wi-Fi network.

[0077] In addition, line status data can include telemetry data (including voltage U, current I, power P, reactive power Q, power factor COSθ, etc.) and telesignaling status (including position signals of the intelligent circuit breaker 40, etc.) from the intelligent circuit breaker 40. Branch status data can include telemetry data (including voltage U, current I, power P, reactive power Q, power factor COSθ, etc.) and telesignaling status (including alarm signals from the intelligent low-voltage branch monitoring device 50, etc.) from the intelligent low-voltage branch monitoring device 50. Electric energy consumption data can include telemetry data (including voltage U, current I, power P, reactive power Q, power factor COSθ, etc.) and telesignaling status (including alarm signals from the intelligent low-voltage branch monitoring device 50, etc.) from the intelligent meter 60. The intelligent fusion terminal 20 can not only receive telemetry data and telesignaling status from the intelligent circuit breaker 40, but can also remotely open and close the intelligent circuit breaker 40, thus realizing the function of remotely operating the circuit breaker.

[0078] In this embodiment, the intelligent fusion terminal 20 can store the distribution network data received through the Wi-Fi network as the ETH data category of its own database, and store the distribution network data received through HPLC and RF as the PLC data category of its own database; so as to separate the data and realize reliable data interaction between each distribution equipment and the intelligent fusion terminal 20.

[0079] In a feasible implementation manner, the distribution network communication system may further include:

[0080] The power distribution master station 10 is connected to the intelligent fusion terminal 20 via a communication network and / or a serial port network, and is used to receive various distribution network data sent by the intelligent fusion terminal 20 via the communication network or the serial port network to realize distribution network management.

[0081] It should be noted that the distribution master station 10 and the intelligent fusion terminal 20 can be connected through a communication network, or through a serial network communication, or through a communication network and a serial network communication, to achieve data transmission between the distribution master station 10 and the intelligent fusion terminal 20, thereby achieving the observability and measurability of distribution network data at the distribution master station 10, and achieving the measurability and controllability of distribution equipment by the distribution master station 10.

[0082] It can be understood that the communication network can include a wired network and / or a wireless network. During specific use, the communication method between the distribution master station 10 and the intelligent fusion terminal 20 can be determined according to actual usage requirements. Preferably, the communication method between the distribution master station 10 and the intelligent fusion terminal 20 is a wired network + wireless network method.

[0083] In a feasible implementation manner, the serial port module and the serial port network include an RS485 interface or an RS232 interface.

[0084] It is understood that both the serial port module and the serial port network can be implemented via serial interfaces such as RS485 and RS232. The communication module in the power distribution equipment can include an end-side serial interface. The power distribution master station can also be equipped with a communication module. The communication module in the power distribution master station 10 can include a master-side serial interface. The corresponding intelligent converged terminal 20 is also equipped with a communication module. The communication module of the intelligent converged terminal 20 can include an edge-side serial interface. The communication protocol of the RS485 interface is DL / T645.

[0085] In a feasible implementation manner, the communication network includes a second wired module and a mobile communication module.

[0086] It can be understood that in this embodiment, the communication network between the power distribution master station 10 and the intelligent fusion terminal 20 is implemented through the second wired module and the mobile communication module.

[0087] In this embodiment, the first wired module or the second wired module includes an RJ45 interface.

[0088] It is understandable that the wired module can realize data transmission through a network interface such as an RJ45 interface. Figure 1 As shown, the communication module in the power distribution master station 10 may include a master-side network interface. The corresponding communication module of the intelligent converged terminal 20 may include a side network interface NET port 1, which serves as a second wired module to implement a wired connection between the power distribution master station 10 and the intelligent converged terminal 20. The communication module of the intelligent converged terminal 20 may also include a side network interface NET port 2, which serves as a first wired module to implement a wired connection between the intelligent converged terminal 20 and the wireless router 70. The communication protocol of the RJ45 interface is any one of MQTT, IEC104, IEC101, and DNP3.0.

[0089] In this embodiment, the mobile communication module may include a 4G module.

[0090] Preferably, the mobile communication module is implemented by a 4G module.

[0091] In one feasible embodiment, the power line carrier network includes a power line carrier chip and an exchange module, the radio frequency network includes an edge radio frequency transceiver, the first wired module includes a first edge wired interface, the second wired module includes a second edge wired interface, the mobile communication module includes an edge mobile communication interface, and the serial port network includes an edge serial interface;

[0092] The power line carrier chip, the exchange module, the edge RF transceiver, the first edge wired interface, the second edge wired interface, the edge mobile communication interface, and the edge serial interface are all set in the intelligent fusion terminal 20.

[0093] It should be noted that the communication module of the intelligent fusion terminal 20 of this embodiment can be integrated with a power line carrier chip, an exchange module, a side RF transceiver, a first side wired interface, a second side wired interface, a side mobile communication interface, and a side serial interface to implement the various communication modes of the above embodiment. Figure 1 As shown, the local communication module includes a side RF transceiver and a power line carrier chip.

[0094] Therefore, an embodiment of the present application provides a distribution network communication system. By setting up a power carrier network and a wireless network in the distribution network communication system, the intelligent fusion terminal and the distribution network equipment can choose to transmit data through the power carrier network or the wireless network according to actual conditions, thereby providing multiple communication methods between the intelligent fusion terminal and the distribution network equipment through the power carrier network and the wireless network, thereby improving the reliability of the distribution network system.

[0095] Moreover, if one of the communication modes fails, it will not affect the collection of distribution network data from the distribution equipment, further ensuring the stability and reliability of the distribution network communication system.

[0096] In addition, a relay wireless router is added between the wireless gateway and the intelligent fusion terminal to ensure the communication quality when cross-floor communication occurs between the power distribution equipment and the intelligent fusion terminal.

[0097] Finally, the distribution network data is sent to the main distribution station through the intelligent fusion terminal, eliminating the need for operation and maintenance personnel to manually record the distribution network data, thus reducing their workload.

[0098] The above description is merely an exemplary embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made using the contents of the present application specification and drawings under the technical concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A distribution network communication system, characterized in that: The distribution network communication system includes: At least one power distribution device, configured to collect at least one distribution network data in the distribution network, wherein the at least one power distribution device comprises at least one of a distribution transformer, an intelligent circuit breaker, an intelligent low-voltage branch monitoring device, and an intelligent meter; The intelligent fusion terminal is connected to each of the power distribution devices through the power carrier network and the wireless network, and is used to receive the distribution network data sent by each of the power distribution devices through the power carrier network or the wireless network to realize distribution network communication.

2. The power distribution network communication system according to claim 1, wherein: The wireless network includes a radio frequency network and a Wi-Fi network; The distribution transformer is connected to the intelligent fusion terminal via the power carrier network, and the collected transformer data is sent to the intelligent fusion terminal via the power carrier network; The intelligent circuit breaker is connected to the intelligent fusion terminal through the power carrier network, the radio frequency network, and the Wi-Fi network, and is used to send the collected line status data to the intelligent fusion terminal through any one of the power carrier network, the radio frequency network, and the Wi-Fi network; The intelligent low-voltage shunt monitoring device is connected to the intelligent fusion terminal via the power carrier network, the radio frequency network, and the Wi-Fi network, and is used to send the collected shunt status data to the intelligent fusion terminal via any one of the power carrier network, the radio frequency network, and the Wi-Fi network; The smart meter is connected to the smart fusion terminal through the power carrier network, the radio frequency network and the Wi-Fi network, and is used to send the collected power consumption data to the smart fusion terminal through any one of the power carrier network, the radio frequency network and the Wi-Fi network.

3. The power distribution network communication system according to claim 2, wherein: The Wi-Fi network includes: a first wireless gateway connected to the intelligent circuit breaker via a first serial port module, and configured to receive the line status data sent by the intelligent circuit breaker; a second wireless gateway connected to the intelligent low-voltage shunt monitoring device via a second serial port module, and configured to receive the shunt status data sent by the intelligent low-voltage shunt monitoring device; a third wireless gateway connected to the smart meter via a third serial port module, and configured to receive the power consumption data sent by the smart meter; A wireless router is connected to the intelligent fusion terminal through a first wired module, and is used to wirelessly receive the line status data forwarded by the first wireless gateway, the branch status data forwarded by the second wireless gateway, and the power consumption data forwarded by the third wireless gateway, and send the line status data, the branch status data, and the power consumption data to the intelligent fusion terminal.

4. The power distribution network communication system according to claim 3, wherein: The power distribution network communication system further includes: The power distribution master station is connected to the intelligent fusion terminal via a communication network and / or a serial port network, and is used to receive the distribution network data sent by the intelligent fusion terminal via the communication network or the serial port network to realize distribution network management.

5. The power distribution network communication system according to claim 4, wherein: The communication network includes a second wired module and a mobile communication module.

6. The power distribution network communication system according to claim 4, wherein: The serial port module and the serial port network include an RS485 interface or an RS232 interface.

7. The power distribution network communication system according to claim 5, wherein: The first wired module and the second wired module include RJ45 interfaces.

8. The power distribution network communication system according to claim 5, wherein: The mobile communication module includes a 4G module.

9. The power distribution network communication system according to claim 5, wherein: The power line carrier network includes a power line carrier chip and an exchange module, the radio frequency network includes an edge radio frequency transceiver, the first wired module includes a first edge wired interface, the second wired module includes a second edge wired interface, the mobile communication module includes an edge mobile communication interface, and the serial port network includes an edge serial interface; The power line carrier chip, the exchange module, the edge RF transceiver, the first edge wired interface, the second edge wired interface, the edge mobile communication interface, and the edge serial interface are all arranged in the intelligent fusion terminal.

10. The power distribution network communication system according to claim 1, wherein: The wireless network includes a radio frequency network, and any one of a Wi-Fi network, a ZigBee network, and a LoRa network.

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