Edge node network access method and system based on HPLC + HRF

Abstract

The invention provides an edge node network access method and system based on HPLC + HRF, and the method comprises the steps: when an edge node needs to report data, a control system controls a filtering matching system to be in a conduction state, and transmits a network access request message modulated by a modem through a transmitter, a circulator and an antenna in sequence; the STA equipment in the electric power HPLC + HRF dual-mode network establishes HRF communication connection with the edge node according to the received network access request message; the sensing detection IC in one edge node sends collected data to the control system of the edge node, then the collected data are modulated through the modem, and then the collected data are sent to the STA device through the transmitter, the circulator and the antenna in sequence. According to the invention, the edge node can be accessed to the electric power HPLC + HRF dual-mode network in a low-cost and convenient-to-manage manner.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology communication, and in particular to an edge node network access method based on HPLC+HRF and a system thereof. Background Art

[0002] The HPLC+HRF dual-mode networking communication mode can meet the requirements of the "new power system" business scenario for wider communication bandwidth, higher speed and higher reliability. In particular, the HRF working mode can report equipment information normally when power outages occur and strong power channels are disconnected.

[0003] The current power HPLC+HRF dual-mode network is limited to the management control and information collection and transmission on the vertical line between the power management center and the meter; while the detection equipment (i.e. edge nodes) that are far away from the data aggregation point in space have isolated information. There are two reasons for the isolation of edge node information: on the one hand, there is no network communication mechanism established between the edge nodes and the networked power HPLC+HRF dual-mode network nodes, and communication interaction is impossible; on the other hand, as a device to assist the power HPLC+HRF dual-mode network, the edge nodes have their own special installation features. The existing edge node devices are powered by energy storage devices such as internal batteries to ensure the operation of the equipment, and energy storage devices are disposable energy, which brings greater challenges to the later maintenance of the equipment.

[0004] Figure 1 This is a schematic diagram of the connection architecture of edge nodes accessing the power HPLC+HRF dual-mode network in the prior art. Figure 1 As shown, in the prior art, the edge node Edga is connected to the power HPLC+HRF dual-mode network by wireless connection, and it is necessary to build a wireless transmission link from the edge node Edga to the power management center by adding wireless IoT concentrators, IoT gateways and other hardware devices. However, the newly built wireless transmission link is isolated from the power HPLC+HRF dual-mode network in the power HPLC+HRF dual-mode network. Since it is impossible to directly use existing resources to access the network, it not only costs more to build and maintain the network, but also if the wireless adopts 4G, NB-IoT and other technologies, there are also superimposed costs such as traffic charges. More importantly, this is not conducive to the unified management and maintenance of the power HPLC+HRF dual-mode network, and is not conducive to building a more intelligent and efficient power system. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an edge node access method based on HPLC+HRF and a system thereof, so as to connect the edge node to the power HPLC+HRF dual-mode network in a low-cost and convenient management manner.

[0006] In order to solve the above technical problems, the first technical solution adopted by the present invention is: An edge node access method based on HPLC+HRF, the edge node includes an antenna, a circulator, a transmitter, a receiver, a control system, a modem, a filter matching system and a sensor detection IC; the antenna, the circulator, the filter matching system, the control system and the modem are connected in sequence; the transmitter is connected to the circulator and the modem respectively; the receiver is connected to the filter matching system and the modem respectively; the control system is also connected to the sensor detection IC; When an edge node needs to report data, its control system controls its filter matching system to be in the on state, and transmits the network access request message modulated by the modem through the transmitter, circulator and antenna in sequence; A STA device in the electric power HPLC+HRF dual-mode network establishes an HRF communication connection with the edge node according to the received network access request message; The sensor detection IC in the edge node sends the collected data to its control system, and the control system controls the modem to modulate the collected data, and then sends the collected data to the STA device through the transmitter, circulator and antenna in sequence.

[0007] Optionally, the network access request message modulated by the modem is transmitted sequentially through a transmitter, a circulator and an antenna, including: The control system transmits the network access request message modulated by the modem through the transmitter, circulator and antenna in sequence according to the preset channel list.

[0008] Optionally, the control system controls the modem to modulate the collected data, and then sequentially sends the collected data to the STA device through a transmitter, a circulator and an antenna, including: The control system controls the modem to modulate the collected data, and sends the modulated collected data to the STA device through the transmitter, the circulator and the antenna in sequence according to the frequency used to establish the HRF communication connection with the STA device.

[0009] Optionally, a STA device in the power HPLC+HRF dual-mode network establishes an HRF communication connection with the edge node according to the received network access request message, including: After receiving the network access request message, a STA device in the power HPLC+HRF dual-mode network demodulates the network access request message, and if it is determined that the network access requirements are met according to the demodulation result, a response message is generated and sent out; The edge node receives and processes the response message, and establishes an HRF communication connection with the STA device.

[0010] Optionally, the edge node further includes a matching network, an energy collection converter and an energy storage device; the circulator, the matching network, the energy collection converter and the energy storage device are connected in sequence; the energy storage device is also connected to the sensor detection IC and the modem respectively; In the default state, the control system of the edge node will control its matching network to be in the on state and its filter matching system to be in the disconnected state; the antenna transmits the received electromagnetic waves to the energy harvesting converter through the circulator and the matching network in sequence, and the energy harvesting converter performs AC-DC conversion and outputs them to the energy storage device; When an edge node needs to report data, its control system controls its matching network to be in a conducting state.

[0011] Another technical solution provided by the present invention is: An edge node access system based on HPLC+HRF, including an electric HPLC+HRF dual-mode network and a plurality of edge nodes; The edge node includes an antenna, a circulator, a transmitter, a receiver, a control system, a modem, a filter matching system and a sensor detection IC; the antenna, the circulator, the filter matching system, the control system and the modem are connected in sequence; the transmitter is connected to the circulator and the modem respectively; the receiver is connected to the filter matching system and the modem respectively; the control system is also connected to the sensor detection IC; The edge node is configured to control the filter matching system to be in a conducting state when data needs to be reported, and transmit the network access request message modulated by the modem through the transmitter, the circulator and the antenna in sequence; and After being configured to establish an HRF communication connection with a STA device in the power HPLC+HRF dual-mode network according to the network access request message, the sensor detection IC sends the collected data to its control system, and its control system controls the modem to modulate the collected data, and then sends it to the STA device through the transmitter, circulator and antenna in sequence.

[0012] Optionally, the control system is configured to preset a channel list, and transmit the modulated network access request message through the transmitter, the circulator and the antenna in sequence according to the channel list; and The device is configured to send the modulated collected data to the STA device in sequence through the transmitter, the circulator and the antenna according to the frequency point used to establish the HRF communication connection with the STA device.

[0013] Optionally, the STA device in the power HPLC+HRF dual-mode network is configured to demodulate the network access request message after receiving the network access request message, and if it is determined that the network access requirements are met based on the demodulation result, generate a response message and send it out.

[0014] Optionally, the edge node further includes a matching network, an energy collection converter and an energy storage device; the circulator, the matching network, the energy collection converter and the energy storage device are connected in sequence; the energy storage device is also connected to the sensor detection IC and the modem respectively; The edge node is further configured such that, in a default state, its control system controls its matching network to be in a conducting state and its filter matching system to be in a disconnected state; the antenna transmits the received electromagnetic waves to the energy harvesting converter in sequence through the circulator and the matching network, and the energy harvesting converter performs AC-DC conversion processing and outputs the waves to the energy storage device; and It is also configured that when data needs to be reported, its control system controls its matching network to be in a disconnected state.

[0015] Optionally, the power HPLC+HRF dual-mode network includes a central coordinator CCO node, a proxy node PCO and a plurality of STA devices; the STA device is directly connected to the central coordinator CCO node for communication based on the HPLC+HRF dual-mode network, or is connected to the central coordinator CCO node for communication through the proxy node PCO; The edge node is a sensor detection device.

[0016] The beneficial effect of the present invention is that the present invention can add edge nodes to the electric power HPLC+HRF dual-mode network without adding new hardware equipment, connect with one of the STA devices based on HRF communication, upload the collected data to the STA device, and then upload it to the power management center platform using the HPLC+HRF dual-mode network, so as to achieve low-cost addition of edge nodes to the electric power HPLC+HRF dual-mode network, and directly use the HPLC+HRF dual-mode network to upload data to the power management center platform. It can not only ensure the reliability of data transmission, but also facilitate the unified management and maintenance of power data, which is conducive to building a more intelligent and efficient power system. In addition, the edge nodes of the present invention can also store energy through radio wave focusing to achieve sustainable energy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the connection architecture of edge nodes accessing the power HPLC+HRF dual-mode network in the prior art; Figure 2 Schematic diagram of the connection of the electric HPLC+HRF dual-mode network in an embodiment of the present invention; Figure 3 A schematic diagram of the structure and connection of edge nodes in an embodiment of the present invention; Figure 4 A schematic diagram of a flow chart of an edge node access method based on HPLC+HRF provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure and connection of an edge node in another embodiment of the present invention; Figure 6 The figure is a schematic diagram of the structure and connection of the STA device in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0019] The most critical concept of the present invention is that when the edge node needs to report data, its control system controls its filter matching system to be in the on state, and transmits the modulated network access request message through the transmitter, circulator and antenna link; the STA device establishes an HRF communication connection with the edge node based on the received network access request message.

[0020] The technical terms involved in the present invention are explained in Table 1: Embodiment 1

[0021] See also Figures 2 to 4 , Figure 2 Schematic diagram of the connection of the electric HPLC+HRF dual-mode network in an embodiment of the present invention; Figure 3 A schematic diagram of the structure and connection of edge nodes in an embodiment of the present invention; Figure 4 A schematic diagram of a flow chart of an edge node network access method based on HPLC+HRF provided in an embodiment of the present invention.

[0022] This embodiment provides a method for edge node access based on HPLC+HRF, wherein the structure of each edge node is as follows: Figure 3 As shown, it includes an antenna, a circulator, a transmitter, a receiver, a control system, a modem, a filter matching system and a sensor detection IC; the antenna, the circulator, the filter matching system, the control system and the modem are connected in sequence; the transmitter is connected to the circulator and the modem respectively; the receiver is connected to the filter matching system and the modem respectively; the control system is also connected to the sensor detection IC.

[0023] Based on the above edge node access method, such as Figure 4 As shown, including: When any edge node Edga needs to report data, it first requests to join the power HPLC+HRF dual-mode network: S1: The control system of the edge node Edga controls the filter matching system to be in the on state, and transmits the network access request message modulated by the modem through the circulator-antenna link; Specifically, the control system will send network access request messages to nearby STA devices one by one according to the preset channel list [0, N]. Here, when accessing the network, the filter matching system is controlled to be in the on state, which can improve the receiving sensitivity of the antenna through the filter matching system and filter out the out-of-band noise interference, so that the wireless data transmission between the STA device and the edge node is more stable and reliable.

[0024] S2: A STA device in the power HPLC+HRF dual-mode network establishes an HRF communication connection with the corresponding edge node Edga according to the received network access request message.

[0025] Specifically, after receiving the network access request message, the STA device will first demodulate it, and then determine the channel status and communication duration obtained by the demodulation: S201: The STA device has a preset channel list [0, N], and the dwell time of each channel is set to a fixed value T (e.g., T=500ms); S202: The STA device receives a network access request message, which carries a channel code Bn and a remaining time Tn for switching the Edga frequency band; S203: If Tn≤1 / 4T, it is determined that the channel Bn meets the network access request standard; S204: After determining that the network access requirements are met, a response message corresponding to the received network access request message is generated and sent out; then, the response message is transmitted after being modulated; the edge node receives and processes the response message, and accordingly establishes an HRF communication connection with the STA device. Since the edge node Edga is mostly a sensor detection device, which is arranged in a special scene, has no strong power access, and is powered by an internal battery, only an HRF connection can be established between the edge node Edga and the STA device.

[0026] In this embodiment, after the edge node Edga successfully accesses the power HPLC+HRF dual-mode network, it uploads the collected data to the central coordinator CCO node, i.e., the power management system platform, through the HRF communication link with the STA device: S3: The sensor detection IC of the edge node Edga sends the collected data to its control system, and the control system controls the modem to modulate the collected data and sends the collected data to the STA device connected thereto through the transmitter-circulator-antenna link.

[0027] Specifically, the sensor detection IC in the edge node Edga sends the collected data to the control system through the serial port. The control system calculates, encodes, sub-packets, and encrypts the collected data, and sends it to the modem through the serial port for modulation. The collected data is modulated to the frequency used for HRF communication connection with the STA device, and then transmitted in the form of electromagnetic waves through the transmitter-circulator-antenna link; the STA device connected to it receives the electromagnetic waves radiated by the edge node Edga through the antenna, and then obtains the collected data after filtering and demodulation.

[0028] like Figure 2 As shown, the electric power HPLC+HRF dual-mode network of this embodiment includes a central coordinator CCO node, a proxy node PCO, a plurality of STA devices and a plurality of the above-mentioned edge nodes Edga. Among them, the STA device can be directly connected to the central coordinator CCO node based on the HPLC+HRF dual-mode network for communication, or it can be first connected to the proxy node PCO based on the HPLC+HRF dual-mode network, and then connected to the central coordinator CCO node through the proxy node PCO based on the HPLC+HRF dual-mode network for communication. In particular, when the edge node Edga needs to access the network, it will actively search for existing network nodes through the above-mentioned access method, quickly complete channel synchronization with nearby STA devices, establish an HRF communication connection relationship, and upload the collected data to the STA device based on the HRF communication link, and then the STA device will use the HPLC+HRF dual-mode network to send the collected data to the central coordinator CCO node for unified management.

[0029] Based on the existing power HPLC+HRF dual-mode network, this embodiment connects the edge nodes to it in HRF wireless communication mode to construct a new power HPLC+HRF dual-mode network. On the one hand, no new hardware equipment is needed, and the HPLC+HRF dual-mode network transmission mode can be directly used for data transmission, which can greatly reduce the access cost and make the transmission more reliable; on the other hand, the access of edge nodes can enrich the power network system, facilitate the power management platform to grasp the status of each communication device in real time, and facilitate the power management center to carry out refined line loss management, rapid fault location, automatic isolation and rapid repair, etc. Embodiment 2

[0030] Please refer to Figure 5 , Figure 5 The figure is a schematic diagram of the structural composition and connection of an edge node in another embodiment of the present invention.

[0031] This embodiment is further expanded on the basis of the first embodiment and optimizes the energy storage method of the edge node.

[0032] The edge nodes of this embodiment are as follows: Figure 5 As shown, it also includes a matching network, an energy collection converter and an energy storage device; the circulator, matching network, energy collection converter and energy storage device are connected in sequence; the energy storage device is also connected to the sensor detection IC and the modem respectively.

[0033] Based on the above structure, the edge node of this embodiment can choose to access the power HPLC+HRF dual-mode network through the method of the above embodiment one only when there is a need to report data in a scenario where real-time reporting of collected data is not required; and in the default state, it disconnects from the power HPLC+HRF dual-mode network and enters the energy collection and storage mode, that is, the charging mode.

[0034] Specifically, in the default state, that is, when there is no need to report collected data, the edge node's control system will control the matching network to be in the on state, and the filter matching system to be in the disconnected state; then the electromagnetic waves in the space are received through the antenna, and the electromagnetic waves pass through the circulator and the matching network in sequence, and are transmitted to the energy collection converter with extremely low loss. After the energy collection converter performs AC-DC conversion and DC boost conversion, the waves are output to the energy storage device to charge the energy storage device.

[0035] When an edge node needs to report data, its control system will control its matching network to be in a disconnected state, and control the filter matching system to be in a conducting state.

[0036] In this embodiment, the edge node controls the matching network to be in the on state and controls the filter matching system to be in the off state by default. The purpose of this is to allow the electromagnetic waves received by the antenna to be transmitted to the energy collection converter in a very low-loss manner through the matching network, so that the energy conversion efficiency of the edge node is higher when performing energy collection and storage.

[0037] Accordingly, when the edge node enters the network, it will control the filter matching system to be in the on state and the matching network to be in the off state. The purpose of this is to improve the receiving sensitivity of the edge node through the filter matching system and filter out the out-of-band noise interference, so that the wireless data transmission between the STA device and the edge node is more stable and reliable.

[0038] The Edga devices of the prior art rely on internal batteries for power supply. The battery life determines the use time of the Edga devices, which is a one-time energy supply. Due to differences in battery chemical properties, energy density, etc., in actual use scenarios, affected by temperature and humidity, power consumption differences of the Edga devices themselves, data transmission methods and data transmission volume, etc., the use cycle of each Edga device is also different, which brings more manpower and material costs to the long-term use and subsequent maintenance of Edga devices.

[0039] The edge node Edga provided in this embodiment has a matching network and an energy collection converter added to the internal hardware of the device, and the energy storage device can use a rechargeable solid-state SMD battery. In the power network system, when the STA device and the edge node Edga do not establish a network connection data interaction, the Edga device receives the radio electromagnetic waves in the space, and can isolate the emission of the edge node Edga through the circulator. The electromagnetic waves received by the antenna can be collected to the energy collection converter with extremely low loss through the matching network. After the electromagnetic waves are processed by the ultra-low power boost conversion inside the energy collection converter, they are converted into a DC power supply to charge the rechargeable solid-state SMD battery supercapacitor, battery and other energy storage devices inside the edge node Edga device. As a result, the edge node Edga device will obtain a steady supply of energy to ensure its permanent use. Embodiment 3

[0040] Please refer to Figure 2 , Figure 3 , Figure 5 as well as Figure 6 .

[0041] This embodiment is based on any of the above embodiments and provides an edge node access system based on HPLC+HRF, such as Figure 2 As shown, it includes an electric HPLC+HRF dual-mode network and multiple edge nodes Edga.

[0042] The power HPLC+HRF dual-mode network includes a central coordinator CCO node, a proxy node PCO and multiple STA devices; the STA device is directly connected to the central coordinator CCO node based on the HPLC+HRF dual-mode network, or is connected to the central coordinator CCO node through the proxy node PCO; any edge node is connected to a STA device based on the HRF network.

[0043] The edge node Edga is a sensor detection device, such as Figure 3 As shown, it includes an antenna, a circulator, a transmitter, a receiver, a control system, a modem, a filter matching system and a sensor detection IC; the antenna, the circulator, the filter matching system, the control system and the modem are connected in sequence; the transmitter is connected to the circulator and the modem respectively; the receiver is connected to the filter matching system and the modem respectively; the control system is also connected to the sensor detection IC.

[0044] In this embodiment, the edge node Edga is configured to control the filter matching system to be in a conducting state when data needs to be reported, and transmit the network access request message modulated by the modem through the transmitter, the circulator and the antenna in sequence; and After being configured to establish an HRF communication connection with a STA device in the power HPLC+HRF dual-mode network according to the network access request message, the sensor detection IC sends the collected data to its control system, and the control system controls the modem to modulate the collected data, and then sends it to the STA device through the transmitter, circulator and antenna in sequence; and It is configured to receive and process the response message sent by the STA device and establish an HRF communication connection with the STA device.

[0045] In some specific embodiments, the control system is configured to have a preset channel list, and transmits the modulated network access request message in sequence through the transmitter, circulator and antenna according to the channel list; and is configured to send the modulated collected data to the STA device in sequence through the transmitter, circulator and antenna according to the frequency used to establish an HRF communication connection with the STA device.

[0046] In this embodiment, the STA device in the power HPLC+HRF dual-mode network is configured to demodulate the network access request message after receiving the network access request message, and if it is determined that the network access requirements are met based on the demodulation result, a response message is generated and sent out.

[0047] In some specific implementations, the structure and connection of the STA device are as follows: Figure 6 As shown, it includes a main control system, an HRF transceiver modem, a transmission matching and link gain control system, a receiving signal conditioning and frequency selection system, a radio frequency front-end system, a harmonic filtering system, an antenna, an HPLC transceiver modem, a transmission amplification system, a receiving signal conditioning and frequency selection system, a power coupling system and an AC power line system; the antenna, the harmonic filtering system and the radio frequency front-end system are connected in sequence; the transmission matching and link gain control system and the receiving signal conditioning and frequency selection system are respectively connected to the radio frequency front-end system and the HRF transceiver modem; the main control system is respectively connected to the HRF transceiver modem and the HPLC transceiver modem; the HPLC transceiver modem is connected to the power coupling system after being respectively connected via the transmission amplification system and the receiving signal conditioning and frequency selection system, and the power coupling system is also connected to the AC power line system.

[0048] The working principle of the STA device based on the above structure is: 1. HPLC and HRF dual-mode link mode, the selection criteria are based on the LQI value of each link; 2. Select the HPLC mode. When receiving, the link structure is the carrier information carried on the AC power line system. After the power coupling system, the strong current and the weak point are isolated to provide a high-frequency signal path. After the receiving signal conditioning and frequency selection system, the signal is smoothed and filtered. The HPLC transceiver modem demodulates the carried information and gives it to the main control system. When transmitting, the main control system gives the data information to be sent to the HPLC transceiver modem for modulation. After the modulated information is amplified by the transmitting amplifier system, it is moved to the AC power line system for transmission after passing through the power coupling system. 3. Select the HRF mode. When receiving, the antenna receives electromagnetic waves, and the low-frequency information is filtered out by the harmonic filtering system. The received weak signal is amplified by the low-noise amplifier in the RF front-end system. The amplified signal is conditioned by the receiving signal and the frequency selection system to filter out the out-band signal and control the input signal amplitude of the HRF transceiver modem within its demodulation range. The demodulated information is given to the main control system. When transmitting, the main control system modulates the data information to be sent through the HRF transceiver modem. The modulated information is given to the power amplifier of the RF front-end system for amplification after the transmission matching and link gain control system. The amplified signal is filtered out of high-frequency harmonics by the harmonic filtering system and radiated through the antenna.

[0049] In particular, in some preferred embodiments of this embodiment, Figure 5 As shown, the edge node Edga also includes a matching network, an energy collection converter and an energy storage device; the circulator, the matching network, the energy collection converter and the energy storage device are connected in sequence; the energy storage device is also connected to the sensor detection IC and the modem respectively; The edge node is further configured such that, in a default state, its control system controls its matching network to be in a conducting state and its filter matching system to be in a disconnected state; the antenna transmits the received electromagnetic waves to the energy harvesting converter in sequence through the circulator and the matching network, and the energy harvesting converter performs AC-DC conversion processing and outputs the waves to the energy storage device; and It is also configured that when data needs to be reported, its control system controls its matching network to be in a disconnected state, and controls the filter matching system to be in a conducting state.

[0050] The edge node access system based on HPLC+HRF provided in this embodiment connects the edge node Edga to the existing power HPLC+HRF dual-mode network in HRF wireless communication mode to construct a new power HPLC+HRF dual-mode network. On the one hand, no new hardware equipment is needed, and the HPLC+HRF dual-mode network transmission mode can be directly used for data transmission, which can greatly reduce the access cost and make the transmission more reliable; on the other hand, the access of the edge node can enrich the power network system, facilitate the power management platform to grasp the status of each communication device in real time, and facilitate the power management center to carry out refined line loss management, rapid fault location, automatic isolation and rapid repair, etc.; in addition, the edge node Edga can also obtain a steady stream of energy through radio wave focusing, effectively extend the use time, and be more conducive to maintenance.

[0051] It can be understood that a person skilled in the art can understand that all or part of the processes in the above technical solutions can be realized by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the above methods. After being executed by the processor, the program can also achieve the beneficial effects of the corresponding methods.

[0052] The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM).

[0053] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. The edge node access method based on HPLC+HRF is characterized in that: The edge node includes an antenna, a circulator, a transmitter, a receiver, a control system, a modem, a filter matching system and a sensor detection IC; the antenna, the circulator, the filter matching system, the control system and the modem are connected in sequence; the transmitter is connected to the circulator and the modem respectively; the receiver is connected to the filter matching system and the modem respectively; the control system is also connected to the sensor detection IC; When an edge node needs to report data, its control system controls its filter matching system to be in the on state, and transmits the network access request message modulated by the modem through the transmitter, circulator and antenna in sequence; A STA device in the electric power HPLC+HRF dual-mode network establishes an HRF communication connection with the edge node according to the received network access request message; The sensor detection IC in the edge node sends the collected data to its control system, and the control system controls the modem to modulate the collected data, and then sends the collected data to the STA device through the transmitter, circulator and antenna in sequence.

2. The edge node access method based on HPLC+HRF as claimed in claim 1, characterized in that: The network access request message modulated by the modem is transmitted through the transmitter, the circulator and the antenna in sequence, including: The control system transmits the network access request message modulated by the modem through the transmitter, circulator and antenna in sequence according to the preset channel list.

3. The edge node access method based on HPLC+HRF as claimed in claim 2, characterized in that: The control system controls the modem to modulate the collected data, and then sends the collected data to the STA device through the transmitter, the circulator and the antenna in sequence, including: The control system controls the modem to modulate the collected data, and sends the modulated collected data to the STA device through the transmitter, the circulator and the antenna in sequence according to the frequency used to establish the HRF communication connection with the STA device.

4. The edge node access method based on HPLC+HRF as claimed in claim 1, characterized in that: A STA device in the power HPLC+HRF dual-mode network establishes an HRF communication connection with the edge node according to the received network access request message, including: After receiving the network access request message, a STA device in the power HPLC+HRF dual-mode network demodulates the network access request message, and if it is determined that the network access requirements are met according to the demodulation result, a response message is generated and sent out; The edge node receives and processes the response message, and establishes an HRF communication connection with the STA device.

5. The edge node network access method based on HPLC+HRF as claimed in claim 1, characterized in that: The edge node also includes a matching network, an energy collection converter and an energy storage device; the circulator, the matching network, the energy collection converter and the energy storage device are connected in sequence; the energy storage device is also connected to the sensor detection IC and the modem respectively; In the default state, the control system of the edge node will control its matching network to be in the on state and its filter matching system to be in the disconnected state; the antenna transmits the received electromagnetic waves to the energy harvesting converter through the circulator and the matching network in sequence, and the energy harvesting converter performs AC-DC conversion and outputs them to the energy storage device; When an edge node needs to report data, its control system controls its matching network to be disconnected.

6. An edge node access system based on HPLC+HRF, characterized in that: Including power HPLC+HRF dual-mode network and multiple edge nodes; The edge node includes an antenna, a circulator, a transmitter, a receiver, a control system, a modem, a filter matching system and a sensor detection IC; the antenna, the circulator, the filter matching system, the control system and the modem are connected in sequence; the transmitter is connected to the circulator and the modem respectively; the receiver is connected to the filter matching system and the modem respectively; the control system is also connected to the sensor detection IC; The edge node is configured to control the filter matching system to be in a conducting state when data needs to be reported, and transmit the network access request message modulated by the modem through the transmitter, the circulator and the antenna in sequence; as well as After being configured to establish an HRF communication connection with a STA device in the power HPLC+HRF dual-mode network according to the network access request message, the sensor detection IC sends the collected data to its control system, and its control system controls the modem to modulate the collected data, and then sends it to the STA device through the transmitter, circulator and antenna in sequence.

7. The edge node access system based on HPLC+HRF as claimed in claim 6, characterized in that: The control system is configured to preset a channel list, and transmit the modulated network access request message through the transmitter, the circulator and the antenna in sequence according to the channel list; as well as It is configured to send the modulated collected data to the STA device in sequence through the transmitter, the circulator and the antenna according to the frequency used to establish the HRF communication connection with the STA device.

8. The edge node access system based on HPLC+HRF as claimed in claim 6, characterized in that: The STA device in the power HPLC+HRF dual-mode network is configured to demodulate the network access request message after receiving the network access request message, and if it is determined that the network access requirements are met based on the demodulation result, a response message is generated and sent out.

9. The edge node access system based on HPLC+HRF as claimed in claim 6, characterized in that: The edge node also includes a matching network, an energy collection converter and an energy storage device; the circulator, the matching network, the energy collection converter and the energy storage device are connected in sequence; the energy storage device is also connected to the sensor detection IC and the modem respectively; The edge node is further configured such that, in a default state, its control system controls its matching network to be in a conducting state and its filter matching system to be in a disconnected state; the antenna transmits the received electromagnetic waves to the energy collection converter in sequence through the circulator and the matching network, and the energy collection converter performs AC-DC conversion processing and outputs the waves to the energy storage device; as well as It is also configured that when data needs to be reported, its control system controls its matching network to be in a disconnected state.

10. The edge node access system based on HPLC+HRF as claimed in claim 6, characterized in that: The power HPLC+HRF dual-mode network includes a central coordinator CCO node, a proxy node PCO and a plurality of STA devices; the STA device is directly connected to the central coordinator CCO node for communication based on the HPLC+HRF dual-mode network, or is connected to the central coordinator CCO node for communication through the proxy node PCO; The edge node is a sensor detection device.

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