A dual-mode communication method and system based on link redundancy check and dynamic hybrid routing

Abstract

The present invention discloses a dual-mode communication method and system based on link redundancy check and dynamic hybrid routing, which relates to the technical field of electricity metering, including building a dual-link parallel channel through HPLC and HRF to perform data synchronization and consistency comparison; when the link is abnormal, dynamically electing an agent coordination node and building a cross-protocol hybrid link; and optimizing communication path selection and interference suppression using an intelligent routing algorithm and a noise identification mechanism. The method of the present invention significantly improves the reliability and data transmission efficiency of the communication system through a dual-link redundancy check and a hybrid link dynamic reconstruction mechanism. The parallel collection and path optimization method is adopted to shorten the meter reading time, reduce the link switching delay, and enhance the real-time performance and resource utilization. The system has good environmental adaptability and can cope with the topology changes brought about by complex power grid structures and distributed energy access.

Description

Technical Field

[0001] The present invention relates to the technical field of electricity metering, and in particular to a dual-mode communication method and system based on link redundancy check and dynamic hybrid routing. Background Art

[0002] Dual-mode communication modules are widely used in electricity metering. Integrating both HPLC (High Power Line Communication) and HRF (High Frequency Radio) communication methods, they effectively address the limited coverage and poor interference immunity inherent in single communication methods. High-speed power line carrier communication (HPLC), based on OFDM technology, offers wide bandwidth and high data rates (in the 0.7-12 MHz frequency band). However, its high peak-to-average ratio (PAPR) leads to high RF front-end circuit complexity, low power efficiency, and sensitivity to frequency offset, limiting transmission range in complex power line environments (such as multipath and transformer interference). While low-power radio frequency (HRF) offers advantages such as flexible networking and frequency offset immunity, traditional OFDM-based wireless solutions still face limitations in coverage and interference immunity. Wireless signals are susceptible to building obstruction and electromagnetic interference, making them incapable of independently supporting the data collection needs of large-scale smart grids.

[0003] The dual-mode communication module achieves complementary functionality by integrating HPLC and HRF. HPLC utilizes power lines as a transmission medium, offering stable coverage but limited by power line quality. HRF utilizes modulation schemes such as Chirp-BOK-BPSK, resulting in constant signal amplitude, low RF circuit complexity, and strong frequency offset resistance, making it suitable for long-distance transmission in complex environments. Currently, the following dual-mode networking communication methods are available:

[0004] One approach is to use a simple time-division multiplexing (TDM) mechanism to divide the HPLC and HRF systems into time-sharing systems to avoid signal conflicts. However, this approach fails to fully leverage the strengths of both communication technologies and presents challenges with time synchronization and data consistency. Another approach attempts to integrate the two technologies at the data link layer, implementing data exchange between HPLC and HRF through complex protocol design. However, this approach is complex to implement and prone to communication bottlenecks under high loads. Furthermore, attempts to integrate signals at the physical layer improve spectrum utilization to a certain extent, but also introduces greater hardware implementation difficulty and cost.

[0005] Using virtualized networks and storing bits for cloud computing can balance loads. Early research on load balancing, while focused on resource scheduling and request management, did not focus much on energy optimization. Current power consumption is high, with load factor rewards and penalties, resulting in high costs. Therefore, energy-performance tradeoffs can be considered for physical machines with computing power at peak usage. Summary of the Invention

[0006] In view of the above-mentioned problems, the present invention is proposed.

[0007] Therefore, the technical problem solved by the present invention is that the existing dual-mode communication networking method has the problems of low protocol integration, insufficient data consistency, low link switching efficiency, and limited anti-interference ability.

[0008] To address the above technical problems, the present invention provides the following technical solutions: a dual-mode communication method based on link redundancy check and dynamic hybrid routing, comprising: constructing dual-link parallel channels through HPLC and HRF for data synchronization and consistency comparison; dynamically electing a proxy coordinator node and establishing a cross-protocol hybrid link when a link anomaly occurs; optimizing communication path selection and interference suppression using an intelligent routing algorithm and noise identification mechanism; the consistency comparison comprising: during synchronous transmission of the HPLC and HRF dual channels, the transmitter appends a timestamp and CRC32 checksum to the original data to construct a data frame; the receiver extracts the payload and outputs a local CRC32 for consistency verification; if the CRC32 and timestamp of the two channels are consistent, the data is valid; if not, a retransmission mechanism of up to three times is initiated; the dynamic election of a proxy coordinator node and establishment of a cross-protocol hybrid link comprises: upon detecting a communication link interruption, initiating a proxy coordinator election process, performing a weighted scoring based on the node's received signal strength, battery power, and number of network hops, and selecting the optimal relay node; the interrupted node then sends a reconfiguration request to the PCO, which selects an idle time slot based on channel occupancy to establish the hybrid link and complete cross-protocol forwarding.

[0009] As a preferred solution of the dual-mode communication method based on link redundancy check and dynamic hybrid routing described in the present invention, the data synchronization includes introducing a sliding window comparison algorithm, a sequence number management mechanism and a whitelist field recognition technology for data synchronization.

[0010] As a preferred solution of the dual-mode communication method based on link redundancy check and dynamic hybrid routing described in the present invention, the consistency comparison includes using CRC32 check and timestamp comparison, and triggering a retransmission mechanism within three times when the data is inconsistent, and marking an abnormal link after triggering more than three times.

[0011] As a preferred solution of the dual-mode communication method based on link redundancy check and dynamic hybrid routing described in the present invention, the dynamic election of the proxy coordination node includes scoring based on a weighted score of the node's received signal strength, battery power, and number of network hops.

[0012] As a preferred solution of the dual-mode communication method based on link redundancy check and dynamic hybrid routing described in the present invention, the construction of a cross-protocol hybrid link includes converting the data packet protocol through a proxy coordination node when the hybrid link is established, forwarding the high-speed power line communication format to the high-frequency wireless format, and attaching a relay identifier.

[0013] As a preferred solution of the dual-mode communication method based on link redundancy check and dynamic hybrid routing described in the present invention, the intelligent routing algorithm includes: optimizing the path based on the OPLS-DA algorithm, comprehensively considering the link success rate, delay and interference intensity, and outputting the optimal path cluster that minimizes weighted delay and interference.

[0014] As a preferred solution of the dual-mode communication method based on link redundancy check and dynamic hybrid routing described in the present invention, the optimization of communication path selection and interference suppression using intelligent routing algorithm and noise identification mechanism includes a traffic scheduling mechanism based on data type and priority level, and dynamic adjustment of time slot length and allocation rules based on TDMA.

[0015] As a preferred solution of the dual-mode communication method based on link redundancy check and dynamic hybrid routing described in the present invention, the interference suppression includes classifying and matching the collected spectrum feature vectors based on the SVM algorithm, and automatically calling preset filtering parameters for dynamic notch processing.

[0016] As a preferred solution of the dual-mode communication method based on link redundancy check and dynamic hybrid routing described in the present invention, the interference suppression includes applying a RAKE receiver and a least squares channel estimation algorithm in a high-frequency wireless communication channel to perform delay and phase compensation on multipath interference signals.

[0017] Another object of the present invention is to provide a dual-mode communication system based on link redundancy check and dynamic hybrid routing, which can solve the problem of insufficient data consistency in the current dual-mode communication networking method by independently establishing dual links and switching hybrid links.

[0018] As a preferred solution of the dual-mode communication system based on link redundancy check and dynamic hybrid routing described in the present invention, it includes: a dual-link parallel and consistency check module, a dynamic proxy election and hybrid link reconstruction module, and a path optimization and interference suppression collaborative module; the dual-link parallel and consistency check module is used to establish independent communication channels for HPLC and HRF, and perform CRC32 and timestamp consistency checks after receiving dual-channel data on the module end; the dynamic proxy election and hybrid link reconstruction module is used to select an adjacent node as a proxy coordinator PCO through RSSI, power and hop count weighted scoring after detecting an HPLC or HRF link interruption; the path optimization and interference suppression collaborative module is used to optimize path selection for parameters such as link success rate, delay and interference intensity based on the OPLS-DA algorithm, while constructing a noise fingerprint library, using SVM to perform noise classification and identification, and automatically matching notch filter parameters.

[0019] A computer device includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement a dual-mode communication method based on link redundancy check and dynamic hybrid routing.

[0020] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of a dual-mode communication method based on link redundancy check and dynamic hybrid routing.

[0021] Beneficial Effects of the Present Invention: The dual-mode communication method based on link redundancy checking and dynamic hybrid routing, provided by the present invention, employs a dual-link parallel transmission mechanism, enabling simultaneous link establishment and synchronization on two independent links, significantly improving the reliability and stability of data transmission. Hash generation technology ensures data integrity and accuracy during transmission, while consistency determination logic further enhances data consistency across different links. Algorithm optimization improves the processing efficiency and response speed of the entire system. A data consistency comparison method based on a hash algorithm ensures data integrity across two channels. The hash algorithm enables real-time detection and correction of potential data errors during data transmission, thereby maintaining data accuracy and consistency. Furthermore, the hash algorithm offers high efficiency and flexibility, adapting to data transmission requirements in diverse scenarios and providing solid technical support for the reliability and stability of HPLC communication. A proxy node (PCO) enables cross-protocol link reconstruction, supporting multi-hop relaying and dynamic channel switching. This node intelligently and dynamically selects the optimal link for data transmission based on network status and data transmission requirements. PCO coordination enables multi-hop relaying and dynamic channel switching, significantly improving the flexibility and reliability of data transmission. A path optimization model based on the OPLS-DA algorithm adjusts transmission priority in real time based on link quality. The path optimization model intelligently analyzes the current network status, including key metrics such as link bandwidth, latency, and packet loss rate, to dynamically adjust data transmission paths and priorities. When link quality degrades or a failure occurs, the path optimization model quickly switches to a more optimal transmission path, ensuring stable and continuous data transmission. Furthermore, the model possesses self-learning and adaptive capabilities, continuously optimizing path selection strategies based on actual network conditions, further improving data transmission efficiency and reliability. The MAC sublayer and physical sublayer of the integrated HPLC and HRF architectures implement dynamic resource allocation through a central coordination module. This design not only improves data transmission efficiency and stability, but also significantly enhances the system's anti-interference capabilities and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is an overall flow chart of a dual-mode communication method based on link redundancy check and dynamic hybrid routing provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0024] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It is obvious that the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in this field without creative work should fall within the scope of protection of the present invention.

[0025] Example 1, reference Figure 1 , as one embodiment of the present invention, provides a dual-mode communication method based on link redundancy check and dynamic hybrid routing, comprising:

[0026] S1: A dual-link parallel channel is constructed through HPLC and HRF for data synchronization and consistency comparison.

[0027] Furthermore, HPLC and HRF technologies are used to independently build communication links. On the module side, these two technologies are responsible for receiving dual-channel data and performing real-time data consistency comparison. When the data comparison results indicate data consistency, the system will execute the corresponding instructions. Conversely, if the data is inconsistent, the system will initiate a retransmission mechanism up to three times. If the data is still inconsistent after three retransmissions, the communication link will be marked as abnormal and a dynamic repair program will be triggered. The flow chart is as follows Figure 1 .

[0028] It should be noted that when the transmitter sends data packets synchronously on the HPLC and HRF channels, it adds a dynamic timestamp (with an accuracy of 1ms) to the original data (Payload) and generates a CRC32 checksum to form a data frame: Frame = [Header | Payload | Timestamp | CRC32].

[0029] After receiving the dual-channel data, the module extracts the payload and timestamp, calculates the local CRC32 value respectively, and compares it with the CRC32 in the frame.

[0030] It should also be noted that if the CRC32 and timestamp values ​​on both channels match, the data is considered valid and the instruction is executed. If the CRC32 values ​​match but the timestamp deviation is greater than 10ms (clock calibration is required), the time synchronization protocol (IEEE 1588v2) is triggered. If the CRC32 values ​​are inconsistent, a retransmission mechanism is initiated: the module sends a NACK command, specifying the channel (HPLC / HRF / dual channel) to be retransmitted. The maximum number of retransmissions is three. If there is still inconsistency, the link is marked as abnormal and a hybrid link is initiated.

[0031] S2: When the link is abnormal, the proxy coordination node is dynamically elected and a cross-protocol hybrid link is constructed.

[0032] Furthermore, a sliding window comparison technique is employed, with a window size set to five packets. This technique enables the system to tolerate the loss of individual packets within a continuous data stream. In the event of packet loss, the system effectively recovers the lost data by inferring the missing data using the hash values ​​of adjacent packets. For high-priority commands, such as power outage alarms and other critical information, this study implemented a pre-stored whitelist mechanism. By directly comparing key fields such as the meter ID and status code, the system can quickly identify and process these commands, significantly reducing processing latency. To address the potential for packet out-of-order, a sequence number management mechanism is introduced. This mechanism ensures that packets are processed in the correct order, avoiding data processing errors caused by sequencing errors. The retransmission threshold is dynamically adjusted based on changes in link quality. In cases of poor link quality, the system increases the probability of retransmission, thereby enhancing data transmission stability in unstable or low-quality network environments.

[0033] It should be noted that if any link is interrupted (e.g., an HPLC line failure), the link will borrow the HRF channel through the neighboring node (proxy coordinator PCO) to establish a hybrid link (HPLC node → neighboring HRF node → target node). The data from the hybrid link must be compared twice with the data received independently through the other channel to ensure consistency.

[0034] It should also be noted that node selection is based on the priority weight formula, which is expressed as:

[0035] ;

[0036] in, represents the priority score, Received Signal Strength Indicator (RSSI) is used to quantify the quality of wireless communication between nodes. In the PCO election algorithm, RSSI reflects the stability of the physical layer connection between the candidate node and the faulty node. Setting the threshold to > -70dBm ensures effective data demodulation. Indicates the battery capacity parameter. When the device is powered by the grid, the default value will be set to the rated battery capacity (usually preset to 100%). If the grid is disconnected, it will switch to pure battery power mode and perform calculations based on the real-time remaining battery capacity (accurate to ±1%). The hop count represents the number of relays a packet must go through to travel from the source node to the destination node. Its value directly affects path efficiency and transmission delay. During the PCO election process, setting the hop count threshold to ≤3 hops effectively controls path complexity while avoiding the accumulation of signal attenuation caused by multi-hop relays. 、 Represents the weight parameter.

[0037] Furthermore, the received signal strength ( )、Battery capacity( ) and network hop count ( ) to form parameter coordination, jointly ensuring signal coverage and energy balance of relay nodes during cross-protocol communication. Dynamically select the neighboring node with the highest comprehensive score as the PCO, supporting cross-protocol relay (such as HPLC nodes relaying through HRF).

[0038] It should be noted that in link interruption detection, if the module does not receive a heartbeat packet from a certain channel for three consecutive times (cycle 1s), it is determined that the link is interrupted.

[0039] A hybrid link is established. A link interruption (such as HPLC) sends a link reconfiguration request (including the target node ID and QoS level) to the PCO. The PCO selects an idle time slot based on the channel occupancy. If the signal occupancy is less than 50%, it is considered a low-load channel and an idle time slot can be selected to establish a cross-protocol forwarding path: HPLC node → PCO (HRF band) → target node.

[0040] The data transparent transmission rule is: PCO performs protocol conversion on cross-protocol data packets (such as converting HPLC's OFDM symbols to HRF's FSK modulation) and adds a relay identifier.

[0041] When the target node returns a response, it will be sent via the original link (if restored) or the hybrid link first.

[0042] S3: Optimize communication path selection and interference suppression using intelligent routing algorithms and noise identification mechanisms.

[0043] Furthermore, the Central Coordinator (CCO) monitors the communication quality of each link (success rate, latency, and interference level) in real time and dynamically allocates data transmission paths. It uses a priority strategy: normal link > hybrid link > single link, and maintains the network topology status through heartbeat detection messages. Intelligent routing optimization algorithms include dynamic path planning and load balancing strategies based on OPLS-DA.

[0044] Dynamic path planning based on OPLS-DA, with input parameters link quality matrix and node status.

[0045] The link quality matrix includes the success rate ( ), delay ( ), interference intensity ( ).

[0046] Node status includes remaining power, load rate, and geographical location.

[0047] The objective function is expressed as:

[0048] Minimize , Subject to ;

[0049] in, and Represents the weight coefficient =0.7, =0.3.

[0050] It should be noted that Orthogonal Projection Latent Structure Discriminant Analysis (OPLS-DA) is used to project multidimensional parameters into the principal component space to generate optimal path clusters. This projection process considers the success rate, latency, and interference intensity in the link quality matrix, as well as the remaining battery life, load rate, and geographic location in the node status, to comprehensively assess the feasibility and efficiency of the path. OPLS-DA analysis identifies the factors that most influence path selection, thereby optimizing path planning and ensuring stable and efficient data transmission.

[0051] It should also be noted that traffic classification scheduling categorizes data types into different priorities based on packet size, urgency, and service type. High-priority data receives priority transmission, ensuring low-latency transmission of critical business data. Traffic shaping and buffer management are also implemented to avoid network congestion and improve overall transmission efficiency. Table 1 shows a typical example of priority classification; customizable priority classifications can be used to suit different application scenarios.

[0052] Table 1 Priority classification table

[0053] grade Data Type Allow Channel Maximum delay 0 Power outage alarm Dual-channel preemption 200ms 1 Electricity meter data collection Hybrid link priority 2s 2 Firmware Upgrade Single channel idle period No restrictions

[0054] The Central Coordinator (CCO) broadcasts a TDMA slot table every five minutes and adaptively adjusts slot lengths (50ms to 200ms) based on node density. Each node, based on the received TDMA slot table, transmits data only within its assigned slot, avoiding data collisions and improving channel utilization. The CCO also monitors network load in real time. If it detects excessive or insufficient data transmission within a particular slot, it dynamically adjusts the slot length to optimize resource allocation. This dynamic slot allocation mechanism not only improves network transmission efficiency but also enhances network flexibility and adaptability.

[0055] Furthermore, the integrated noise library and signal equalization module automatically identify and suppress HPLC power line noise (such as harmonic interference) and HRF multipath effects, improving noise immunity by more than 10dB.

[0056] Build a noise fingerprint library, noise collection, nodes periodically collect power line noise samples (sampling rate 2MHz), and generate spectrum feature vectors through FFT analysis, which are expressed as:

[0057] Noise_Vector ;

[0058] Among them, Noise_Vector represents the spectrum feature vector, Indicates frequency, Represents the amplitude, n=10 is the main harmonic component.

[0059] It should be noted that the SVM algorithm is used to classify noise types (such as motor start-stop and photovoltaic inverter interference) and pre-store optimal filtering parameters. This algorithm enables the system to automatically identify the current noise type and quickly retrieve the corresponding optimal filtering parameters from the noise fingerprint library, achieving precise filtering and further improving signal purity and transmission quality. This mechanism also supports continuous learning and updating of noise types, ensuring that the system maintains effective anti-interference capabilities even in the face of new noise types.

[0060] It should also be noted that the dynamic notch filter automatically generates notch frequencies based on the noise fingerprint library, blocking the affected frequency band (e.g., 475kHz to 525kHz) within the OFDM subcarriers of the HPLC. As the noise frequency changes, the dynamic notch filter adjusts the notch frequency in real time to ensure consistent suppression of the currently dominant noise. This adaptive feature significantly enhances the stability and reliability of the system, ensuring continuous and accurate data transmission even in complex power line communication environments. Furthermore, the close integration of the dynamic notch filter with the noise fingerprint library enables a fully automated process from noise identification to filtering, reducing the need for manual intervention and improving the overall efficiency and intelligence of the system.

[0061] A RAKE receiver combined with channel estimation (LS algorithm) performs delay and phase compensation for multipath signals, improving the signal-to-noise ratio by over 6dB. Through HRF multipath compensation technology, the system effectively addresses the multipath effect common in HPLC communications. Multipath causes signal delay and phase deviation during transmission, impacting signal reception quality and data transmission accuracy. The RAKE receiver, combined with channel estimation (LS algorithm), accurately estimates the delay and phase information of multipath signals and compensates for them, effectively eliminating the negative impact of multipath. This technology not only significantly improves the signal-to-noise ratio, ensuring signal purity and transmission quality, but also provides strong support for the stable operation of HPLC communications in complex environments.

[0062] Example 2, an embodiment of the present invention, provides a dual-mode communication method based on link redundancy check and dynamic hybrid routing. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through economic benefit calculation and simulation experiments.

[0063] First, the present invention carefully selected a specific power grid area as an experimental project. The area consists of a concentrator and more than fifty electricity meters. The architectural environment in this area is complex and diverse, covering high-rise residential buildings, old low-rise residential buildings with complex wiring environments, and various commercial facilities. In addition, there are multiple communication base stations and industrial equipment distributed in the area. These factors make the electromagnetic environment extremely complex. In order to conduct tests and comparisons, the present invention respectively applied the dual-mode communication module of the prior art and the dual-mode communication module of the technology introduced in the present invention, and carried out network communication tests in this complex electromagnetic environment. Through these tests, the present invention collected a large amount of data and organized the average test data into a table, such as Table 2.

[0064] Table 2 Test data table

[0065] Technical indicators / solutions Existing technical solutions The solution proposed in this paper Average communication signal quality 65dBm 60dBm Average communication delay time 107ms 72ms Message accurate delivery rate About 99.9% More than 99.99% Anti-interference ability Generally, it is easy to cause communication interruption Strong, maintain stable transmission Average switching response time 35 milliseconds 12 milliseconds

[0066] After in-depth analysis and comparison, the proposed solution significantly surpassed existing technical solutions in multiple key performance indicators under the same application scenario. In particular, the proposed solution demonstrated superior performance in communication signal quality, communication latency, message delivery accuracy, core node anti-interference capability, and handover response time. These significant advantages fully validate the positive effects of the present invention and confirm its efficiency and reliability in practical applications.

[0067] Example 3, an embodiment of the present invention, provides a dual-mode communication system based on link redundancy check and dynamic hybrid routing, including a dual-link parallel and consistency check module, a dynamic proxy election and hybrid link reconstruction module, and a path optimization and interference suppression collaborative module.

[0068] The dual-link parallelization and consistency check module establishes two independent communication channels: HPLC (high-speed powerline communication) and HRF (high-frequency wireless communication). The module simultaneously receives data frames from both channels and performs a data consistency check. The module appends a dynamic timestamp and CRC32 checksum to each data packet to form a frame structure. The receiving end then performs a hash recalculation and checksum comparison on the Payload field. If the CRC and timestamp values ​​of the two channels match, the data is marked as valid. If there is a discrepancy, a NACK command is triggered, requesting retransmission individually or simultaneously, with a maximum of three retransmissions.

[0069] It should also be noted that this module incorporates a sliding window comparison algorithm, a sequence number management mechanism, and a key field whitelist mechanism to improve fault tolerance for data loss, disordered data, and outliers. In the event of retransmission failure or the persistence of an abnormal link, the abnormality flag is reported to the dynamic proxy election and hybrid link reconstruction module, triggering a path switch or link replacement mechanism.

[0070] The dynamic proxy election and hybrid link reconfiguration module initiates the proxy coordinator (PCO) election mechanism when a link anomaly is detected (e.g., three consecutive HPLC heartbeat timeouts). This module assigns a weighted score to all candidate nodes based on received signal strength (RSSI), remaining battery charge (Battery), and network hop count (HopCount). The scoring formula is [ ] , and the node with the highest score is dynamically selected as the cross-protocol relay PCO.

[0071] It should also be noted that the dynamic proxy election and hybrid link reconfiguration module issues a link reconfiguration request to the selected PCO node based on the type of interrupted link and the target node's QoS level. When the channel occupancy rate falls below 50%, the PCO node selects an idle time slot to establish a hybrid link, performs protocol conversion and relay forwarding (for example, HPLC-OFDM to HRF-FSK), and appends a relay identification field. Upon receiving the response, the target node prioritizes completing communication via the restored link or the current hybrid link. The module performs a secondary data consistency check during the reconfiguration process.

[0072] The Path Optimization and Interference Suppression Collaborative Module performs real-time link path selection and interference mitigation enhancement based on network topology and communication quality. Taking link success rate S, latency D, and interference intensity I as input, the Path Optimization and Interference Suppression Collaborative Module applies the OPLS-DA path planning algorithm to generate multipath projections and select the optimal path cluster to satisfy the objective function, subject to the constraint that S ≥ 95%.

[0073] It should also be noted that the path optimization and interference suppression collaborative module integrates a noise fingerprint library and a dynamic notching mechanism. It generates spectral feature vectors by collecting 2MHz sampling data from the HPLC channel. It then uses the Support Vector Machine (SVM) algorithm to classify and match noise, automatically extracting optimal notching parameters. In the HRF channel, the path optimization and interference suppression collaborative module also uses a RAKE reception mechanism combined with an LS channel estimation algorithm to compensate for multipath signal delay and phase, improving the signal-to-noise ratio and data demodulation success rate. Based on the path status and noise assessment results, the system can adjust the current link priority or report them to the module to trigger a route migration decision.

Claims

1. A dual-mode communication method based on link redundancy check and dynamic hybrid routing, characterized in that: include: Build a dual-link parallel channel through HPLC and HRF to perform data synchronization and consistency comparison; When a link is abnormal, a proxy coordination node is dynamically elected to build a cross-protocol hybrid link. Utilize intelligent routing algorithms and noise identification mechanisms to optimize communication path selection and interference suppression; The consistency comparison includes: when the HPLC and HRF dual channels are transmitted simultaneously, the sending end adds a timestamp and CRC32 checksum to the original data to construct a data frame. The receiving end extracts the payload and outputs the local CRC32 for consistency judgment. If the CRC32 and timestamp of the two channels are consistent, the data is valid. If not, a retransmission mechanism within three times is initiated. Dynamically electing proxy coordinators and building cross-protocol hybrid links involves initiating a proxy coordinator election process when any communication link interruption is detected. A weighted score is performed based on the node's received signal strength, battery level, and number of network hops to select the optimal relay node. The interrupted node then sends a reconfiguration request to the PCO. The PCO selects an idle time slot based on channel occupancy to establish a hybrid link and complete cross-protocol forwarding.

2. The dual-mode communication method based on link redundancy check and dynamic hybrid routing according to claim 1, characterized in that: The data synchronization includes: A sliding window comparison algorithm, serial number management mechanism, and whitelist field recognition technology are introduced for data synchronization.

3. The dual-mode communication method based on link redundancy check and dynamic hybrid routing according to claim 2, characterized in that: The consistency comparison includes: The CRC32 checksum and timestamp comparison method is used, and a retransmission mechanism is triggered within three times when the data is inconsistent. If it is triggered more than three times, an abnormal link is marked.

4. The dual-mode communication method based on link redundancy check and dynamic hybrid routing according to claim 3, characterized in that: The dynamic election agent coordination node includes: The scoring is based on a weighted score of the node's received signal strength, battery power, and number of network hops.

5. The dual-mode communication method based on link redundancy check and dynamic hybrid routing according to claim 4, characterized in that: The construction of a cross-protocol hybrid link includes: When the hybrid link is established, the proxy coordination node converts the data packet protocol, forwards the high-speed power line communication format to the high-frequency wireless format, and appends a relay identifier.

6. The dual-mode communication method based on link redundancy check and dynamic hybrid routing according to claim 5, characterized in that: The intelligent routing algorithm includes: The path optimization is based on the OPLS-DA algorithm, which comprehensively considers the link success rate, delay and interference intensity, and outputs the optimal path cluster that minimizes weighted delay and interference.

7. The dual-mode communication method based on link redundancy check and dynamic hybrid routing according to claim 6, characterized in that: The optimization of communication path selection and interference suppression by using intelligent routing algorithms and noise identification mechanisms includes: Traffic scheduling mechanism based on data type and priority level, and dynamic adjustment of time slot length and allocation rules based on TDMA.

8. The dual-mode communication method based on link redundancy check and dynamic hybrid routing according to claim 7, characterized in that: The interference suppression includes, The collected spectrum feature vectors are classified and matched based on the SVM algorithm, and the preset filtering parameters are automatically called for dynamic notch processing.

9. The dual-mode communication method based on link redundancy check and dynamic hybrid routing according to claim 8, characterized in that: The interference suppression includes, RAKE receiver and least squares channel estimation algorithm are used in high-frequency wireless communication channels to compensate for the delay and phase of multipath interference signals.

10. A dual-mode communication system based on link redundancy check and dynamic hybrid routing, employing the dual-mode communication method based on link redundancy check and dynamic hybrid routing according to any one of claims 1 to 9, characterized in that: It includes dual-link parallel and consistency verification modules, dynamic proxy election and hybrid link reconstruction modules, and path optimization and interference suppression collaboration modules; The dual-link parallel and consistency check module is used to establish independent communication channels for HPLC and HRF, and perform CRC32 and timestamp consistency check after receiving dual-channel data at the module end; The dynamic proxy election and hybrid link reconstruction module is used to select a neighboring node as a proxy coordinator PCO through RSSI, power and hop count weighted scoring after detecting an HPLC or HRF link interruption; The path optimization and interference suppression collaborative module is used to optimize path selection based on the OPLS-DA algorithm for parameters such as link success rate, delay and interference intensity, while building a noise fingerprint library, using SVM to classify and identify noise, and automatically matching notch filter parameters.

11. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the dual-mode communication method based on link redundancy check and dynamic hybrid routing according to any one of claims 1 to 9 are implemented.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the dual-mode communication method based on link redundancy check and dynamic hybrid routing according to any one of claims 1 to 9 are implemented.

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