A method for developing a communication unit for power internet of things application scenarios

Abstract

The embodiment of the application discloses a kind of for the communication unit development method of power internet of things application scene, belong to power grid communication technical field, including the communication unit hardware framework of design HPLC carrier module, the communication parameter of communication unit in HPLC carrier module is modulated, pilot application is carried out in multiple different power internet of things application scene, realizes power utilization information acquisition, power environment monitoring and distribution information acquisition, according to the test verification of acquisition data information, according to test verification, HPLC carrier module is configured adjustment, HPLC carrier module after configuration adjustment is installed to target place and works application, the embodiment of the application can be real-time to the real-time mastery of communication resource operating state, service flow direction, external environment transformation;Depth excavates internal data of communication management system, automatically analyzes communication resource operating risk;Comprehensively observe service demand, effectively support the upgrading of communication network, improve the investment utilization rate of communication resource.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of power grid communication, and particularly relates to a communication unit development method for a power Internet of Things application scenario. BACKGROUND

[0002] The power Internet of Things is an important component of the national industrial Internet, and the construction of an efficient, safe and reliable sensing layer has become an important construction work of the power industry. The implementation of the data flow carried by the power Internet of Things cannot be separated from the current wired and wireless Internet of Things technologies, such as optical fibers, power wireless private networks, NB-IoT, 5G, HPLC, etc. HPLC is a high-speed power line carrier, also known as a broadband power line carrier, which is a broadband power line carrier technology for data transmission on low-voltage power lines. A broadband power line carrier communication network is a communication network that uses power lines as a communication medium to realize the gathering, transmission and interaction of low-voltage power user power information.

[0003] The power line carrier communication technology is a communication means specific to the power system, and the transmission bandwidth and transmission distance of the power line carrier technology can meet the demand of power distribution and utilization business. In the terminal communication access network of the power system, there are optical fiber, wireless and power line carrier communication technologies, among which the optical fiber and wireless communication technologies can realize full-duplex communication and support TCP / IP protocol. Due to the sharing of the channel and other factors, the carrier communication technology adopts a half-duplex communication mode.

[0004] With the networking of the power system communication network, the business bearing protocol is compatible with the networked protocol and the question-and-answer protocol, and the networked protocol is mainly used. However, the medium-voltage power line carrier is only applicable to the question-and-answer protocol, and its application in the terminal communication access network is limited, which puts forward the IP demand for the medium-voltage power line carrier communication technology.

[0005] At present, the analog modulation signal in the power line transmission occupies about 100ms of time domain length, so under the polling mechanism, the power line carrier channel is mostly idle. With the increasing number of field intelligent terminal devices, there are problems such as carrier networking and frequency band interference when multiple CCOs are coordinated, which brings difficulties to the construction and debugging of the field. At the same time, the carrier device as a whole is mainly based on traditional serial communication, and cannot realize true IP and plug-and-play, which is still quite far from intelligentization. SUMMARY

[0006] To solve the above problems and technical defects, the embodiments of the present application adopt the following technical solutions. A communication unit development method for a power Internet of Things application scenario comprises the following steps:

[0007] Step 1, design the hardware framework of the communication unit of the HPLC carrier module, and modulate the communication parameters of the communication unit of the HPLC carrier module;

[0008] Step 2, pilot application in a plurality of different power internet of things application scenarios, collecting data information; wherein, the data information includes: power consumption information, power environment monitoring data and power distribution information;

[0009] Step 3, test and verify the data information, configure and adjust the HPLC carrier module according to the test and verification result, install the configured and adjusted HPLC carrier module to the target site for working application.

[0010] Preferably, the hardware framework includes: three-phase circuit, control unit, memory and interface circuit;

[0011] Each phase circuit in the three-phase circuit includes: signal coupling circuit, signal input filtering circuit, signal output amplification filtering circuit and HPGP chip.

[0012] Further, each phase circuit in the three-phase circuit is electrically connected with the control unit, the control unit is electrically connected with the memory and the interface circuit respectively, and the interface circuit is electrically connected with one of the three-phase circuits;

[0013] The output end of the signal coupling circuit in each phase circuit is electrically connected with the input end of the signal input filtering circuit, the input end of the signal coupling circuit is electrically connected with the output end of the signal output amplification filtering circuit, the input end of the signal output amplification filtering circuit is electrically connected with the output end of the HPGP chip, the output end of the signal input filtering circuit is electrically connected with the input end of the HPGP chip, and the HPGP chip is electrically connected with the interface circuit and the control unit respectively.

[0014] Further, when each phase circuit in the three-phase circuit receives the power line carrier signal after signal coupling processing, the signal received from the remote end is input to the signal input filtering circuit for filtering processing, and then input to the interface circuit after calculation processing, and then sent to the external circuit for communication by the control unit.

[0015] Further, when the interface circuit receives external data signal, the control unit controls and calculates the processed external data signal, and then inputs the processed external data signal to the signal output amplification filtering circuit for signal amplification and filtering, and then couples the effective signal to the single-phase power line in the three-phase circuit through the signal coupling circuit, so as to realize communication with the STA in the remote end.

[0016] Further, the communication parameter modulation adopts OFDM modulation mode, and the interface circuit is a universal asynchronous receiver-transmitter or an Ethernet interface.

[0017] If the Ethernet interface communication is adopted, the interface communication rate is 1mbps, and the frame format adopts the homeplug general protocol frame.

[0018] If asynchronous transceiver communication is used, the interface communication rate is 9600bps, and the frame format has one start bit, eight data bits, one parity check bit and one stop bit.

[0019] Preferably, the power consumption information includes high-frequency power consumption information data based on an HPLC carrier module.

[0020] The power environment monitoring data includes environment monitoring data of important places.

[0021] The power distribution information includes terminal information data of a low-voltage fault monitoring unit and a gateway meter.

[0022] Further, the power consumption information includes high-frequency power consumption information data based on an HPLC carrier module, and specifically includes:

[0023] Through power consumption data of a power distribution transformer and a terminal user, power consumption monitoring, load management and line loss analysis;

[0024] Based on a terminal of an HPLC carrier module, data communication, information collection, command control and data intelligent analysis are performed on edge side equipment through HPLC high-speed carrier communication downwardly.

[0025] The HPLC carrier module performs real-time monitoring on power consumption of a user through minute-level collection of power consumption data, and realizes load prediction.

[0026] The HPLC carrier module is installed in an equipment and is a slave node in carrier communication, and uploads power consumption information to a superior equipment.

[0027] The superior equipment is installed with a CCO carrier module and is a master node in carrier communication, and performs carrier communication with the slave node.

[0028] Further, the power environment monitoring data includes equipment monitoring data and working environment data of various station buildings.

[0029] The power environment monitoring data is uploaded to an Internet of Things agent equipment in an HPLC carrier communication mode, and data intelligent analysis and environment early warning are performed.

[0030] Further, the power distribution information is obtained through collection of a low-voltage fault unit, a gateway meter and an intelligent power distribution terminal in a power distribution environment, and includes three-phase voltage information, current information, active and reactive power information.

[0031] Compared with the prior art, the embodiment of the application has the following beneficial effects:

[0032] The application firstly verifies the basic function of the HPLC communication unit on the concentrator or the Internet of Things gateway; then verifies the on-line monitoring access point capability of the field carrier unit device monitoring system; finally, according to the actual business demand, a typical business scenario is constructed to realize the wide coverage of the HPLC carrier communication, collect various types of Internet of Things terminals and their business data, realize the reliable communication of each power business, and through the development of the power communication network big data application scene, the real-time communication resource operation state, business flow direction, external environment change can be mastered; the internal data of the communication management system is deeply mined, the communication resource operation risk is automatically analyzed; the business demand is observed comprehensively, and the upgrading and reconstruction of the communication network are effectively supported, and the investment utilization rate of the communication resource is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] In the drawings:

[0034] Figure 1 The method steps of the embodiment of the application are shown in the figure;

[0035] Figure 2 The HPLC communication unit principle diagram of the embodiment of the application is shown in the figure;

[0036] Figure 3 The carrier communication mode schematic diagram of the embodiment of the application is shown in the figure;

[0037] Figure 4 The new II type concentrator carrier communication architecture diagram of the embodiment of the application is shown in the figure;

[0038] Figure 5 The II type collector carrier communication architecture diagram of the embodiment of the application is shown in the figure;

[0039] Figure 6 The new II type collector connection mode of the embodiment of the application is shown in the figure;

[0040] Figure 7 The power monitoring scene schematic diagram of the embodiment of the application is shown in the figure;

[0041] Figure 8 The power distribution information collection scene of the embodiment of the application is shown in the figure;

[0042] Figure 9 The multi-business scene architecture diagram of the embodiment of the application is shown in the figure. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, not all the embodiments. The components of the embodiments of the application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Embodiment 1

[0045] As shown in Figure 1 and Figure 2 A communication unit development method for a power Internet of Things application scenario, comprising:

[0046] Designing a hardware framework of a communication unit of an HPLC carrier module, and modulating communication parameters of the communication unit in the HPLC carrier module;

[0047] The hardware framework comprises a three-phase circuit, a control unit, a memory and an interface circuit;

[0048] Each phase circuit in the three-phase circuit comprises a signal coupling circuit, a signal input filtering circuit, a signal output amplification filtering circuit and an HPGP chip.

[0049] Each phase circuit in the three-phase circuit is electrically connected with the control unit, the control unit is electrically connected with the memory and the interface circuit respectively, and the interface circuit is further electrically connected with one of the three-phase circuits;

[0050] The output end of the signal coupling circuit in each phase circuit is electrically connected with the input end of the signal input filtering circuit, the input end of the signal coupling circuit is electrically connected with the output end of the signal output amplification filtering circuit, the input end of the signal output amplification filtering circuit is electrically connected with the output end of the HPGP chip, the output end of the signal input filtering circuit is electrically connected with the input end of the HPGP chip, and the HPGP chip is electrically connected with the interface circuit and the control unit respectively.

[0051] When each phase circuit in the three-phase circuit receives a power line carrier signal after signal coupling processing, the received signal from the remote end is input to the signal input filtering circuit for filtering processing, and then input to the interface circuit after calculation processing, and then the signal is sent to the external circuit for communication by the control unit, so that the three-phase circuit can simultaneously communicate.

[0052] When the interface circuit receives an external data signal, the control unit controls and calculates the processed external data signal, and then inputs the processed external data signal to the signal output amplification filtering circuit for signal amplification and filtering, and then couples the effective signal to the single-phase power line in the three-phase circuit through the signal coupling circuit, so as to realize communication with the STA in the remote end, and the external data signal is a remote control signal of the Internet of Things management center.

[0053] The communication parameters are modulated by using an OFDM modulation mode, the interface circuit is one of a universal asynchronous receiver-transmitter or an Ethernet interface, and full-duplex data exchange can be performed with external equipment;

[0054] If the Ethernet communication is adopted, the interface communication rate is 1 Mbps, and the frame format adopts the homeplug general protocol frame.

[0055] If the asynchronous transceiver communication is adopted, the interface communication rate is 9600 bps, and the frame format has a start bit, eight data bits, a parity check bit and a stop bit.

[0056] In a plurality of different power internet of things application scenarios, pilot applications are carried out to realize power consumption information collection, power environment monitoring and power distribution information collection, and test verification is carried out according to the collected data information;

[0057] The pilot application is to deploy a plurality of HPLC carrier communication devices for pilot application, and the application scenarios are as shown in Figure 7 The application scenarios can be a fire fighting system, a security guard subsystem, an access control subsystem, an environment monitoring subsystem, a micro-meteorological subsystem and an online detection subsystem.

[0058] In these scenarios, fire detection sensors, fire alarm sensors, electronic fences, alarms, access controls, direct current power supplies, UPSs, storage batteries, temperature and humidity sensors, smoke sensors, light sensors, gas sensors, rain gauges, anemometers, transformers, circuit breakers and switch cabinets are installed, these devices are connected with controllers, information collectors or monitoring devices, the controllers, information collectors or monitoring devices are connected with edge internet of things agent devices through HPLC carrier communication, and the edge internet of things agent devices are connected with the internet of things management center, so that physical control is realized.

[0059] The power consumption information collection is high-frequency power consumption information data collection based on the HPLC carrier module.

[0060] The power environment monitoring data includes environment monitoring information of important places.

[0061] The power distribution information includes collection and analysis of terminal information data of the key meter and the low-voltage fault monitoring unit.

[0062] The power consumption information includes high-frequency power consumption information data based on the HPLC carrier module, and specifically includes power consumption data of the power distribution transformer and the terminal user, as well as power consumption monitoring, load management and line loss analysis, so as to finally realize automatic meter reading, peak-shaving power consumption, power consumption inspection, load prediction and power saving cost.

[0063] Based on the HPLC carrier module, the terminal downwardly realizes data communication, information collection, command control and data intelligent analysis of the edge side device through the HPLC high-speed carrier communication mode.

[0064] The HPLC carrier module realizes real-time monitoring of the power consumption of the user through minute-level collection of power consumption data information, and further realizes load prediction.

[0065] STA module will collect the electricity information sent to the upper level of the Internet agent device, to achieve data edge convergence.

[0066] STA module will collect the electricity information collected by the new II type concentrator, 8 blocks of meter information to form a frame, through the HPLC high speed carrier to send to the edge of the Internet agent.

[0067] Edge Internet agent device through the installation of HPLC carrier module, or connect multiple carrier communication unit.

[0068] HPLC carrier module is installed in the device, is the slave node of carrier communication, upload the electricity information to the upper level equipment;

[0069] The upper level equipment installation CCO carrier module, is the master node of carrier communication, with the slave node carrier communication;

[0070] The edge device for preliminary analysis of data processing, upload to the "Internet management platform".

[0071] Power environment monitoring for various station equipment characteristics and working environment, the communication power supply, battery pack, UPS, generator, air conditioning intelligent and non intelligent equipment and temperature and humidity, smoke, ground water, access control environmental quantity to realize remote measurement, remote signaling, remote control and remote adjustment;

[0072] HPLC carrier communication mode for information collection of various sensors, detectors and switch value in the environment, environmental monitoring after the collection, upload to the Internet agent device, data intelligent analysis, environmental warning.

[0073] Power distribution information collection is for low voltage fault unit, gateway meter, intelligent power distribution terminal in the power distribution environment, to collect key data, including three phase voltage information, current information, active and reactive information, through the power cable connection, with HPLC carrier communication mode, realize the high frequency collection of power distribution data.

[0074] According to the test verification of HPLC carrier module configuration adjustment, the HPLC carrier module after configuration adjustment is installed in the target place for work application, the target place is the above-mentioned fire fighting application, security guard, access control protection, outdoor environmental monitoring, meteorological monitoring of indoor or outdoor place, that is, the important place.

[0075] Example 2

[0076] As Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the user electricity information collection system collects and analyzes electricity consumption data from distribution transformers and end users to achieve electricity monitoring, implement tiered pricing, load management, and line loss analysis, ultimately achieving goals such as automatic meter reading, peak-shifting electricity consumption, electricity inspection (anti-theft), load forecasting, and saving electricity costs.

[0077] Terminals based on HPLC carrier modules communicate with edge devices via HPLC high-speed carrier communication, enabling functions such as data communication, information acquisition, command control, and intelligent data analysis.

[0078] The HPLC communication unit can acquire electricity consumption data at the minute level, enabling real-time monitoring of user electricity usage and thus load forecasting. The STA module sends the acquired electricity consumption information to the upper-level IoT agent device, achieving data edge aggregation. The STA module frames the electricity consumption information collected by the new Type II concentrator, with information from eight meters forming one frame, and sends it to the edge IoT agent via the HPLC high-speed carrier wave.

[0079] Edge IoT agent devices are installed by installing an HPLC carrier module (CCO - main carrier node module) or connecting multiple carrier communication units.

[0080] The HPLC carrier module (STA - carrier slave node) is installed inside the device and acts as the slave node for carrier communication. The upstream device, equipped with the CCO carrier module, is the master node and communicates with the slave device STA via carrier communication. The terminal uploads power consumption information to the upstream device through the STA carrier module; the edge device performs preliminary analysis and processing on the data before uploading it to the "IoT management platform".

[0081] Edge IoT agents are responsible for data communication, information collection, command control, and intelligent data analysis of edge devices, and have a CCO carrier master node module.

[0082] The new Type II concentrator collects electricity consumption information data from smart meters and then transmits it to the IoT agent via HPLC carrier communication. It has a built-in STA carrier slave node module.

[0083] The Type I concentrator is used to transmit and aggregate data sent by the new Type II collector via HPLC carrier communication, and is equipped with a CCO carrier master node module.

[0084] The new Type II data collector collects electricity consumption information data from smart meters and then transmits it to the Type I concentrator via HPLC carrier communication. It has a built-in STA carrier slave node module.

[0085] The new II type concentrator terminal based on STA carrier module collects real-time power consumption information of smart meters in the area through 485; and through STA carrier module and 4G communication module, the power consumption information is transmitted to the power consumption master station and the Internet of Things management platform respectively; higher precision and higher frequency minute-level power consumption information collection is completed; high-speed real-time power consumption information collection is provided for energy management and load control, and data support is provided.

[0086] The master device and the slave device adopt HPLC high-speed broadband carrier communication; the CCO can perform bidirectional and concurrent carrier communication with multiple STAs.

[0087] In the power consumption information collection system in the smart grid architecture, one meter reading mode is that the II type collector is connected with the RS485 interface of the meter through the RS485 line, and the concentrator and the II type collector adopt carrier communication to form.

[0088] The structure and function of the II type collector are simple, the cost is low, the power consumption information of the meter without module can be collected, the II type collector is widely used in the power consumption information collection system, and the II type collector is usually used as a supplement of the meter without module and as a module externally connected to the meter.

[0089] The terminal is used for collecting power information of multiple power meters, and can exchange data with the I type concentrator; the terminal is connected with the RS485 interface of the meter for communication, and adopts HPLC power carrier communication with the upper device I type concentrator.

[0090] The new II type collector can store the collected power consumption information of the meter, such as daily freezing, monthly freezing, 15-minute collection, and especially minute-level data; and can frame and package the information of multiple meters and multiple data items, and forward the information to the upper device concentrator, or directly forward the command and data between the concentrator and the power meter, to realize minute-level collection of power consumption information and ensure that important information is not lost.

[0091] The new II type collector can receive the meter data reading and control instructions issued by the concentrator through the uplink channel, and forward the instructions to the connected meter in real time, and then send the response data information of the meter back to the concentrator. The new II type collector supports the forwarding of all data reading (including extended data identification set) and broadcast time setting instructions of the concentrator to the power meter.

[0092] The new type II collector acquires the meter address by reading the meter communication address using a wildcard, so that the new type II collector is equivalent to a carrier communication module of the meter, and forms a network with other nodes as a sub-node in the carrier communication network; or the new type II collector is connected with multiple meters, the address of the new type II collector needs to be recorded in the system, and all meter addresses are one-to-one corresponding to the address of the new type II collector, which is recorded and recorded in the system by manual mode, and the new type II collector forms a network with other nodes as a relay node in the carrier communication network.

[0093] The new type II collector terminal performs HPLC carrier communication with the upper device I type concentrator; receives and responds to the command from the I type concentrator, transmits data to the concentrator, and adopts carrier concurrent mode communication to improve the utilization rate of HPLC channel.

[0094] 1) Expanding to increase minute-level data: the new type II collector collects the power consumption data of the meter every minute through 485, and after collection, the meter data is formed into a data frame, and is forwarded in the form of HPLC carrier after packaging.

[0095] 2) Relay forwarding, the new type II collector supports communication relay forwarding between the concentrator and other collectors.

[0096] 3) Communication conversion, the new type II collector can convert the communication mode and communication protocol of the upper and lower channels.

[0097] 4) Security protection measures for transmission of important data.

[0098] Power consumption data upload based on carrier HPLC module: the communication medium of the STA carrier module is a power cable, which is a kind of broadband power line carrier technology for data transmission on low-voltage power lines. The broadband power line carrier communication network is a communication network that uses power lines as communication media to realize the aggregation, transmission and interaction of low-voltage power user power consumption information.

[0099] Embodiment 3

[0100] As shown in Figure 7 , the power environment collection system realizes the functions of "remote measurement, remote signaling, remote control, remote adjustment" and the like for intelligent and non-intelligent devices such as communication power supply, battery pack, UPS, generator, air conditioner, and environmental quantities such as temperature and humidity, smoke, ground water, access control in various station buildings (including power distribution station buildings, communication machine rooms, base stations, etc.).

[0101] Various types of sensors, detectors and switch quantities in the environment are used to collect information in the form of HPLC carrier communication. After collecting various environmental monitoring quantities, upload to the Internet of Things agent device for data intelligent analysis and environmental early warning.

[0102] Data collection is to realize the power monitoring, distribution switch monitoring, UPS monitoring and other power data acquisition; realize the temperature and humidity, water immersion and other environmental data collection; realize the data collection of safety fire prevention system.

[0103] Abnormality discovery and alarm realize intelligent analysis of field data collection, provide abnormal data early warning, provide multiple alarm modes, users can accurately locate the alarm position.

[0104] Remote intelligent control realizes intelligent linkage and control of field air conditioner, switch, Internet of Things platform.

[0105] Embodiment 4

[0106] As shown in Figure 8 and Figure 9 The power distribution information acquisition system collects key data of low-voltage fault units, interface tables, intelligent power distribution terminals and other devices in the power distribution environment, including three-phase voltage information, current information, active and reactive power information, etc. Such devices are connected through power cables and realize high-frequency acquisition of power distribution data through HPLC carrier communication mode.

[0107] The intelligent distribution area master station system uses multi-dimensional analysis or power distribution area informationization intelligent analysis technology, and the intelligent distribution transformer terminal, power utilization information acquisition terminal, intelligent electric energy meter, etc. use modularization, plug-and-play and integrated technology. Through the collection and monitoring of distribution area-distribution transformer-user power utilization information, low-voltage distribution network statistical analysis, economic operation analysis, power quality management, distributed power access, interactive management, asset management and other application analysis and comprehensive intelligent management functions.

[0108] Through the low-voltage carrier topology file uploaded by the terminal, the actual equipment number is parsed and counted according to the distribution area-sub-line-table box hierarchical structure.

[0109] The intelligent distribution transformer terminal integrates user power failure information, power distribution low-voltage outgoing line and branch fault information, realizes active sensing and positioning of low-voltage faults.

[0110] The master station further confirms the fault event according to the fault file uploaded by the terminal combined with the relevant information of medium voltage, and uploads the power supply service command system.

[0111] The above-described embodiments only express the preferred embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications, improvements and substitutions can be made, which are within the scope of protection of the present application.

Claims

1. A method for developing a communication unit for power internet of things application scenarios, characterized in that, The method comprises the following steps: Step 1, designing a hardware framework of a communication unit of an HPLC carrier module, and modulating communication parameters of the communication unit of the HPLC carrier module; Step 2, performing pilot application in multiple different power internet of things application scenarios, and collecting data information; wherein the data information comprises power consumption information, power environment monitoring data and power distribution information; The power consumption information comprises high-frequency power consumption information data based on the HPLC carrier module, and specifically comprises: power consumption data of a power distribution transformer and an end user, as well as power consumption monitoring, load management and line loss analysis; based on the HPLC carrier module, downward HPLC high-speed carrier communication for edge device data communication, information collection, command control and data intelligent analysis; minute-level collection of power consumption data information by the HPLC carrier module for real-time monitoring of power consumption of the user, realizing load prediction; the HPLC carrier module is installed in the device and is a slave node in carrier communication, uploading power consumption information to a superior device; the superior device is installed with a CCO carrier module and is a master node in carrier communication, and carrier communication is performed with the slave node; Step 3, testing and verifying the data information, and configuring and adjusting the HPLC carrier module according to the test and verification result, and installing the configured and adjusted HPLC carrier module to a target location for working application.

2. The method of claim 1, wherein, The hardware framework comprises a three-phase circuit, a control unit, a memory and an interface circuit. Each phase circuit in the three-phase circuit comprises a signal coupling circuit, a signal input filtering circuit, a signal output amplification filtering circuit and an HPGP chip.

3. The method of claim 2, wherein, Each phase circuit in the three-phase circuit is electrically connected with the control unit, the control unit is electrically connected with the memory and the interface circuit respectively, and the interface circuit is electrically connected with one of the three-phase circuits. The output end of the signal coupling circuit in each phase circuit is electrically connected with the input end of the signal input filtering circuit, the input end of the signal coupling circuit is electrically connected with the output end of the signal output amplification filtering circuit, the input end of the signal output amplification filtering circuit is electrically connected with the output end of the HPGP chip, the output end of the signal input filtering circuit is electrically connected with the input end of the HPGP chip, and the HPGP chip is electrically connected with the interface circuit and the control unit respectively.

4. The method of claim 3, wherein the method further comprises: When each phase circuit in the three-phase circuit receives a power line carrier signal after signal coupling processing, the received signal from the remote end is input to the signal input filtering circuit for filtering processing, and after calculation processing, the signal is input to the interface circuit, and then the control unit controls the signal to be sent to an external circuit for communication.

5. The method of claim 4, wherein, When the interface circuit receives an external data signal, the control unit controls and calculates the processed external data signal, and then the signal is input to the signal output amplification filtering circuit for signal amplification and filtering, and then the effective signal is coupled to the single-phase power line in the three-phase circuit through the signal coupling circuit, so as to realize communication with the STA in the remote end.

6. The method of claim 5, wherein the method further comprises: The modulation of the communication parameters is in the OFDM modulation mode, and the interface circuit is a universal asynchronous receiver-transmitter or an Ethernet interface. If the Ethernet interface communication is used, the interface communication rate is 1 Mbps, and the frame format uses the homeplug general protocol frame; If the asynchronous transceiver communication is used, the interface communication rate is 9600 bps, and the frame format has a start bit, eight data bits, a parity check bit and a stop bit.

7. The method of claim 1, wherein the method further comprises: The power utilization information includes high-frequency power utilization information data based on the HPLC carrier module; The power environment monitoring data includes environment monitoring data of important places; The power distribution information includes terminal information data of a low-voltage fault monitoring unit and a gateway meter.

8. The method of claim 7, wherein the method further comprises: The power environment monitoring data includes equipment monitoring data and working environment data of various station buildings. The power environment monitoring data is uploaded to the Internet of Things agent device in the HPLC carrier communication mode, and data intelligent analysis and environment early warning are performed.

9. The method of claim 7, wherein the method further comprises: The power distribution information is data obtained by collecting a low-voltage fault unit, a gateway meter and an intelligent power distribution terminal in a power distribution environment; and the power distribution information includes three-phase voltage information, current information, active and reactive power information.

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