RIS communication enhancement method used in disaster-resistant environment for power line repair

Abstract

The invention discloses an RIS communication enhancement method used in an anti-disaster environment for power line repair, belongs to the technical field of power communication, and is characterized in that an RIS is accessed to a special communication network for power line repair. According to the invention, the environment sensing module collects communication parameters at high frequency and combines the beamforming optimization of the improved particle swarm algorithm and the channel adaptation technology of adaptive modulation coding, the communication strategy can be dynamically adjusted according to the channel time-varying characteristic and the first-aid repair demand priority, and the balance between the coverage area and the transmission rate is realized; differentiated communication requirements in different disaster scenes are met; through a redundant communication link switching mechanism, communication deterioration caused by equipment faults and extreme environments is dealt with, and it is ensured that a core communication function is not interrupted; and meanwhile, the communication quality is fed back in real time, the strategy can be adjusted in time, personnel potential safety hazards and repair faults caused by communication problems are reduced, the communication coverage range, the transmission rate and the stability are guaranteed, and the emergency communication requirement of power repair is met.

Description

Technical Field

[0001] This invention belongs to the field of power communication technology, specifically a RIS communication enhancement method for power emergency repair in disaster-resistant environments. Background Technology

[0002] After natural disasters such as earthquakes, typhoons, and rainstorms, power facilities are easily damaged. Rapid power repair is the key to restoring normal production and life in the region. During the power repair process, real-time communication between repair personnel, command center and on-site equipment is crucial. It is necessary to ensure the stable transmission of information such as repair instructions, fault data feedback and safety warnings.

[0003] The communication environment in disaster relief is extremely complex, with problems such as signal obstruction, multipath fading, and severe interference. Traditional communication methods are prone to signal interruption, large transmission delays, and high bit error rates. Existing communication enhancement technologies are mostly designed for conventional complex environments and lack specific adaptation to power emergency repair and disaster relief scenarios. They are difficult to balance communication coverage, transmission rate, and stability, and cannot meet the emergency communication needs of emergency repair work. Summary of the Invention

[0004] To overcome the above-mentioned shortcomings, this invention provides a RIS communication enhancement method for power emergency repair in disaster relief environments. This method solves the problem that existing communication enhancement technologies are mostly designed for conventional and complex environments, lack specific adaptation to power emergency repair and disaster relief scenarios, and are difficult to balance communication coverage, transmission rate, and stability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a RIS communication enhancement method for power emergency repair in a disaster-resistant environment, comprising the following steps: S1. Deploy RIS equipment at the power emergency repair site, complete the position calibration of RIS with the emergency repair terminal and command center base station through the positioning module, connect RIS to the dedicated communication network for power emergency repair, and connect to the emergency power supply through the power module; S2. The environmental perception module collects communication environment parameters of the repair area in real time, including signal strength, interference type and intensity, and channel fading coefficient. At the same time, the fault detection module obtains the distribution data of the damaged power facilities area and synchronizes the two types of data to the RIS control unit. The S3 and RIS control units combine the priority of emergency repair needs with the fusion analysis of environmental parameters and damaged area data to determine the key coverage areas and performance requirements for communication enhancement. S4. Based on the analysis results of the RIS control unit, the beamforming optimization module uses an improved particle swarm optimization algorithm to adjust the phase of the RIS reflection unit, construct a directional communication beam, focus on key coverage areas, and improve signal gain. S5. The channel adaptation module is used to monitor the communication channel status in real time. Combined with the time-varying characteristics of the channel under disaster relief environment, adaptive modulation and coding technology is used to dynamically adjust the transmission parameters, reduce the impact of multipath fading and interference, and ensure the performance of transmission rate and bit error rate. S6. The transmission delay, bit error rate, and signal receiving power indicators are collected in real time through the communication quality detection module and compared with the preset thresholds. If the indicators exceed the allowable range, the data is fed back to the RIS control unit. After receiving feedback data, the S7 and RIS control units drive the beamforming optimization module and the channel adaptation module to perform secondary parameter optimization. If the communication requirements still cannot be met after multiple optimizations, the redundant communication link switching mechanism is activated, and at the same time, a communication abnormality warning is sent to the command center through the alarm module. S8. During the emergency repair process, if the on-site repair area or communication environment changes, the environment perception module and fault detection module will update the data in real time, and the information interaction module will synchronize the changed data to the RIS control unit and command center to ensure that the RIS communication enhancement strategy dynamically adapts to the changes in the scenario.

[0006] As a further aspect of the present invention: in S3, the priority of emergency repair needs includes emergency fault diagnosis, equipment scheduling, and personnel safety early warning information.

[0007] As a further aspect of the present invention: In S2, the environmental perception module adopts a multi-dimensional sensing unit, including a signal strength sensor, an interference detector, and a channel analyzer, to perform high-frequency acquisition of communication environment parameters three times per second to ensure data real-time performance.

[0008] As a further aspect of the present invention: In S7, the alarm module is connected to an external audible and visual alarm and a communication module linked with the command center. When communication is abnormal, the site issues an audible and visual warning while simultaneously pushing information about the abnormal location and fault type to the command center.

[0009] As a further aspect of the present invention: In S8, the information interaction module supports bidirectional data transmission, and interacts in real time with the working status and communication quality indicators of the RIS device and the dispatch instructions of the command center, and synchronizes them to the display interface of the emergency repair terminal.

[0010] As a further aspect of the present invention: the beamforming optimization module employs an improved particle swarm optimization algorithm, which introduces a dynamic adjustment mechanism for inertial weights. Combined with communication coverage and signal gain constraints, it improves the convergence speed and accuracy of phase optimization. The phase adjustment step size of the RIS reflection unit is dynamically adapted according to the channel change rate.

[0011] As a further aspect of the present invention: the adaptive modulation and coding technology of the channel adaptation module presets multiple modulation and coding schemes, including QPSK, 16QAM, and 64QAM, and selects the optimal scheme in real time according to the channel signal-to-noise ratio to ensure communication stability under different interference intensities.

[0012] As a further aspect of the present invention: In S7, the redundant communication link switching mechanism includes a satellite communication link and an emergency shortwave link. The RIS control unit automatically selects the switching link based on the communication quality detection results, and the switching process delay does not exceed 50ms, ensuring communication continuity.

[0013] Compared with existing technologies, the advantages of this invention are as follows: By using an environmental sensing module to collect communication parameters at high frequency, combined with beamforming optimization of the improved particle swarm optimization algorithm and channel adaptation technology of adaptive modulation and coding, the communication strategy can be dynamically adjusted according to the time-varying characteristics of the channel and the priority of emergency repair needs, achieving a balance between coverage and transmission rate, and meeting the differentiated communication requirements under different disaster scenarios; through a redundant communication link switching mechanism, it can cope with communication degradation caused by equipment failure and extreme environments, ensuring that core communication functions are not interrupted; at the same time, it provides real-time feedback on communication quality, which facilitates timely adjustment of strategies, reduces personnel safety hazards and repair errors caused by communication problems, and ensures communication coverage, transmission rate and stability, meeting the emergency communication needs of power repair. Detailed Implementation

[0014] The technical solution of this application will be further described in detail below with reference to specific embodiments.

[0015] This invention provides a technical solution: a RIS communication enhancement method for power emergency repair in disaster-resistant environments, comprising the following steps: S1. Deploy RIS equipment at the power emergency repair site, complete the position calibration of RIS with the emergency repair terminal and command center base station through the positioning module, connect RIS to the dedicated communication network for power emergency repair, and connect to the emergency power supply through the power module; S2. The environmental perception module collects communication environment parameters of the repair area in real time, including signal strength, interference type and intensity, and channel fading coefficient. At the same time, the fault detection module obtains the distribution data of the damaged power facilities area and synchronizes the two types of data to the RIS control unit. In S2, the environmental perception module uses multi-dimensional sensing units, including signal strength sensors, interference detectors, and channel analyzers, to collect communication environment parameters at a high frequency of 3 times per second to ensure data real-time performance. The S3 and RIS control units combine the priority of emergency repair needs with the fusion analysis of environmental parameters and damaged area data to determine the key coverage areas and performance requirements for communication enhancement. In S3, the priority of emergency repair needs includes emergency fault diagnosis, equipment scheduling, and personnel safety early warning information; S4. Based on the analysis results of the RIS control unit, the beamforming optimization module uses an improved particle swarm optimization algorithm to adjust the phase of the RIS reflection unit, construct a directional communication beam, focus on key coverage areas, and improve signal gain. The beamforming optimization module uses an improved particle swarm optimization algorithm, which introduces a dynamic adjustment mechanism for inertial weights. Combined with communication coverage and signal gain constraints, it improves the convergence speed and accuracy of phase optimization. The phase adjustment step size of the RIS reflector unit is dynamically adapted according to the channel change rate. S5. The channel adaptation module is used to monitor the communication channel status in real time. Combined with the time-varying characteristics of the channel under disaster relief environment, adaptive modulation and coding technology is used to dynamically adjust the transmission parameters, reduce the impact of multipath fading and interference, and ensure the performance of transmission rate and bit error rate. The adaptive modulation and coding technology of the channel adaptation module has multiple preset modulation and coding schemes, including QPSK, 16QAM and 64QAM. The optimal scheme is selected in real time according to the channel signal-to-noise ratio to ensure communication stability under different interference intensities. S6. The transmission delay, bit error rate, and signal receiving power indicators are collected in real time through the communication quality detection module and compared with the preset thresholds. If the indicators exceed the allowable range, the data is fed back to the RIS control unit. After receiving feedback data, the S7 and RIS control units drive the beamforming optimization module and the channel adaptation module to perform secondary parameter optimization. If the communication requirements still cannot be met after multiple optimizations, the redundant communication link switching mechanism is activated, and at the same time, a communication abnormality warning is sent to the command center through the alarm module. In S7, the alarm module is connected to an external audible and visual alarm and a communication module linked with the command center. When communication is abnormal, the site issues an audible and visual warning and pushes information about the abnormal location and fault type to the command center. In S7, the redundant communication link switching mechanism includes satellite communication links and emergency shortwave links. The RIS control unit automatically selects the switching link based on the communication quality detection results, and the switching process delay does not exceed 50ms, ensuring communication continuity. S8. During the emergency repair process, if the on-site emergency repair area or communication environment changes, the environmental perception module and the fault detection module will update the data in real time, and the information interaction module will synchronize the changed data to the RIS control unit and the command center to ensure that the RIS communication enhancement strategy dynamically adapts to the changes in the scenario. In S8, the information interaction module supports bidirectional data transmission, enabling real-time interaction between the working status and communication quality indicators of the RIS device and the dispatch instructions of the command center, and synchronizing them to the display interface of the emergency repair terminal.

[0016] Example 1: A method for enhancing RIS communication in disaster-prone environments for power emergency repair includes the following steps: S1. Deploy 2 RIS devices at the urban power distribution network emergency repair site after the typhoon disaster. Use GPS positioning modules to complete the location calibration with 5 emergency repair terminals and the command center base station. Connect the RIS to the power emergency repair 4G dedicated communication network and connect to a portable emergency generator for power supply through the power module. S2, the environmental perception module collects communication environment parameters of the repair area in real time, including signal strength -85dBm~-60dBm, electromagnetic interference intensity 20dBμV / m~45dBμV / m, and channel fading coefficient. At the same time, the fault detection module obtains the distribution data of the damaged area of ​​the distribution network line through drone inspection and synchronizes the two types of data to the RIS control unit. The S3 and RIS control units, prioritizing emergency repair needs and placing priority on emergency fault diagnosis over personnel safety warnings over equipment scheduling, perform fusion analysis of environmental parameters and damaged area data to identify three concentrated fault areas as key coverage areas, setting transmission delay ≤100ms and bit error rate ≤1. Performance metrics; S4. The beamforming optimization module adjusts the phase of the RIS reflection unit using an improved particle swarm optimization algorithm based on the analysis results of the RIS control unit, and constructs three directional communication beams to focus on key coverage areas, improving signal gain by ≥15dB. S5. The channel adaptation module monitors the communication channel status in real time and, combined with the time-varying characteristics of the channel after the typhoon, dynamically adjusts the transmission parameters using adaptive modulation and coding technology. When the signal-to-noise ratio is ≥10dB, the 64QAM scheme is selected, and when the signal-to-noise ratio is 5dB~10dB, the 16QAM scheme is selected. S6, the communication quality detection module collects transmission delay, bit error rate and signal receiving power indicators in real time, compares them with preset thresholds, and if the indicators exceed the allowable range, feeds the data back to the RIS control unit. After receiving the feedback data, the S7 and RIS control units drive the beamforming optimization module and the channel adaptation module to perform secondary parameter optimization. If the communication requirements still cannot be met after three optimizations, the satellite redundant communication link switching mechanism is activated, and at the same time, a communication anomaly warning is sent to the command center through the alarm module. S8. During the emergency repair process, if the repair team advances to a new fault area, the environmental perception module and the fault detection module update the data in real time, and the information interaction module synchronizes the changed data to the RIS control unit and the command center to ensure that the RIS communication enhancement strategy dynamically adapts to the changes in the scenario.

[0017] Example 2: A method for enhancing RIS communication in disaster-prone environments for power emergency repair includes the following steps: S1. Deploy 3 RIS devices at the mountain power transmission line repair site after the earthquake disaster. Use the Beidou positioning module to complete the position calibration with 8 repair terminals and command center base station. Connect the RIS to the power repair 5G dedicated communication network and connect to the solar emergency power supply through the power module. S2, the environmental perception module collects communication environment parameters of the repair area in real time, including signal strength -90dBm~-70dBm, terrain obstruction interference, and channel fading coefficient. At the same time, the fault detection module obtains the distribution data of the damaged area of ​​the transmission tower through ground inspection and synchronizes the two types of data to the RIS control unit. The S3 and RIS control units, prioritizing emergency repair needs and placing personnel safety warnings > emergency fault diagnosis > equipment scheduling in mind, perform fusion analysis of environmental parameters and damaged area data to identify four densely populated work areas as key coverage areas, setting transmission delay ≤150ms and bit error rate ≤1. ³ performance indicators; S4. The beamforming optimization module adjusts the phase of the RIS reflection unit based on the analysis results of the RIS control unit, and constructs four directional communication beams to focus on key coverage areas, improving signal gain by ≥12dB. S5. The channel adaptation module monitors the communication channel status in real time and dynamically adjusts the transmission parameters using adaptive modulation and coding technology, taking into account the time-varying characteristics of the mountainous terrain channel. When the signal-to-noise ratio is ≥8dB, the 16QAM scheme is selected, and when the signal-to-noise ratio is <8dB, the QPSK scheme is selected. S6, the communication quality detection module collects transmission delay, bit error rate and signal receiving power indicators in real time, compares them with preset thresholds, and if the indicators exceed the allowable range, feeds the data back to the RIS control unit. After receiving the feedback data, the S7 and RIS control units drive the beamforming optimization module and the channel adaptation module to perform secondary parameter optimization. If the communication requirements still cannot be met after four optimizations, the emergency shortwave redundant communication link switching mechanism is activated, and at the same time, a communication abnormality warning is sent to the command center through the alarm module. S8. During the emergency repair process, if short-term heavy rainfall occurs in the mountainous area, causing the communication environment to deteriorate, the environmental perception module and the fault detection module will update the data in real time, and the information interaction module will synchronize the changed data to the RIS control unit and the command center to ensure that the RIS communication enhancement strategy dynamically adapts to the changes in the scenario.

[0018] Example 3: A method for enhancing RIS communication in disaster-prone environments for power emergency repair includes the following steps: S1. Deploy one RIS device at the emergency repair site of the suburban power distribution room after the rainstorm disaster. Use the GPS positioning module to complete the location calibration with three emergency repair terminals and the command center base station. Connect the RIS to the 4G / 5G dual-mode communication network for power emergency repair and connect it to the emergency power supply interface of the mains through the power module. S2, the environmental perception module collects communication environment parameters of the emergency repair area in real time, including signal strength -80dBm~-65dBm, rain attenuation interference intensity, and channel fading coefficient. At the same time, the fault detection module obtains equipment damage distribution data through the internal monitoring system of the power distribution room and synchronizes the two types of data to the RIS control unit. The S3 and RIS control units, prioritizing emergency repair needs and placing priority on emergency fault diagnosis over equipment scheduling over personnel safety warnings, perform integrated analysis of environmental parameters and damaged area data to identify two key coverage areas around the power distribution room. Transmission delay is set to ≤80ms and bit error rate to ≤5×1. Performance metrics; S4. The beamforming optimization module adjusts the phase of the RIS reflection unit using an improved particle swarm optimization algorithm based on the analysis results of the RIS control unit, constructs two directional communication beams to focus on key coverage areas, and improves signal gain by ≥18dB. S5. The channel adaptation module monitors the communication channel status in real time. Combining the time-varying characteristics of the channel in the rainstorm environment, it dynamically adjusts the transmission parameters using adaptive modulation and coding technology and switches between QPSK, 16QAM, and 64QAM schemes in real time according to the signal-to-noise ratio. S6, the communication quality detection module collects transmission delay, bit error rate and signal receiving power indicators in real time, compares them with preset thresholds, and if the indicators exceed the allowable range, feeds the data back to the RIS control unit. After receiving feedback data, the S7 and RIS control units drive the beamforming optimization module and the channel adaptation module to perform secondary parameter optimization. If the communication requirements still cannot be met after two optimizations, the satellite redundant communication link switching mechanism is activated, and at the same time, a communication anomaly warning is sent to the command center through the alarm module. S8. During emergency repairs, if the repair terminal moves to the basement area of ​​the power distribution room, the environmental perception module and the fault detection module update the data in real time, and the information interaction module synchronizes the changed data to the RIS control unit and the command center to ensure that the RIS communication enhancement strategy dynamically adapts to changes in the scenario.

[0019] Example 4: A method for enhancing RIS communication in disaster-prone environments for power emergency repair includes the following steps: S1. Deploy two RIS devices at the emergency repair site of the urban substation after the snowstorm disaster. Use GPS and Beidou dual-mode positioning module to complete the position calibration with six emergency repair terminals and the command center base station. Connect the RIS to the 5G dedicated communication network for power emergency repair and connect to the diesel generator for emergency power supply through the power module. S2, the environmental perception module collects communication environment parameters of the emergency repair area in real time, including signal strength -88dBm~-62dBm, snow and ice cover interference, and channel fading coefficient. At the same time, the fault detection module obtains equipment damage distribution data through the substation monitoring system and synchronizes the two types of data to the RIS control unit. The S3 and RIS control units, prioritizing emergency repair needs and placing personnel safety warnings > equipment scheduling > emergency fault investigation, perform integrated analysis of environmental parameters and damaged area data to determine the substation work area and three surrounding evacuation routes as key coverage areas. Transmission delay is set to ≤120ms and bit error rate to ≤8×1. Performance metrics; S4. The beamforming optimization module adjusts the phase of the RIS reflection unit using an improved particle swarm optimization algorithm based on the analysis results of the RIS control unit, constructs 5 directional communication beams to focus on key coverage areas, and improves signal gain by ≥14dB. S5. The channel adaptation module monitors the communication channel status in real time, and dynamically adjusts the transmission parameters by adopting adaptive modulation and coding technology in combination with the time-varying characteristics of the channel in the blizzard low temperature environment, and switches the modulation and coding scheme in real time according to the signal-to-noise ratio. S6, the communication quality detection module collects transmission delay, bit error rate and signal receiving power indicators in real time, compares them with preset thresholds, and if the indicators exceed the allowable range, feeds the data back to the RIS control unit. After receiving the feedback data, the S7 and RIS control units drive the beamforming optimization module and the channel adaptation module to perform secondary parameter optimization. If the communication requirements still cannot be met after three optimizations, the emergency shortwave redundant communication link switching mechanism is activated, and at the same time, a communication abnormality warning is sent to the command center through the alarm module. S8. During the emergency repair process, if a blizzard causes signal blockage in some RIS devices, the environmental perception module and fault detection module will update the data in real time, and the information interaction module will synchronize the changed data to the RIS control unit and command center to ensure that the RIS communication enhancement strategy dynamically adapts to changes in the scenario.

[0020] The following table is derived from Examples 1-4:

[0021] The comparison in the table above shows that: The number of RIS deployments is highly correlated with the complexity of the coverage area and the intensity of communication demand. In the mountainous earthquake scenario of Example 2, due to the complex terrain and the dispersion of personnel and equipment, the communication coverage integrity is optimal after deploying 3 RIS devices. The compatibility of communication network type with signal infrastructure in disaster scenarios is crucial. In Example 3, the suburban rainstorm scenario uses a 4G / 5G dual-mode network, which has greater switching flexibility when the signal fluctuates and better communication stability than a single network mode. The selection of redundant links should be based on the characteristics of the scenario. Satellite communication links are more suitable for open areas, such as typhoon and rainstorm scenarios; emergency shortwave links are more adaptable to mountainous and urban areas with severe obstruction, such as earthquake and snowstorm scenarios.

[0022] Finally, it should be noted that although the present invention has been described in detail above with general descriptions and specific embodiments, the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A RIS communication enhancement method for disaster-resistant environments used in power emergency repair, characterized in that, Includes the following steps: S1. Deploy RIS equipment at the power emergency repair site, complete the position calibration of RIS with the emergency repair terminal and command center base station through the positioning module, connect RIS to the dedicated communication network for power emergency repair, and connect to the emergency power supply through the power module; S2. The environmental perception module collects communication environment parameters of the repair area in real time, including signal strength, interference type and intensity, and channel fading coefficient. At the same time, the fault detection module obtains the distribution data of the damaged power facilities area and synchronizes the two types of data to the RIS control unit. The S3 and RIS control units combine the priority of emergency repair needs with the fusion analysis of environmental parameters and damaged area data to determine the key coverage areas and performance requirements for communication enhancement. S4. Based on the analysis results of the RIS control unit, the beamforming optimization module uses an improved particle swarm optimization algorithm to adjust the phase of the RIS reflection unit, construct a directional communication beam, focus on key coverage areas, and improve signal gain. S5. The channel adaptation module is used to monitor the communication channel status in real time. Combined with the time-varying characteristics of the channel under disaster relief environment, adaptive modulation and coding technology is used to dynamically adjust the transmission parameters, reduce the impact of multipath fading and interference, and ensure the performance of transmission rate and bit error rate. S6. The transmission delay, bit error rate, and signal receiving power indicators are collected in real time through the communication quality detection module and compared with the preset thresholds. If the indicators exceed the allowable range, the data is fed back to the RIS control unit. After receiving feedback data, the S7 and RIS control units drive the beamforming optimization module and the channel adaptation module to perform secondary parameter optimization. If the communication requirements still cannot be met after multiple optimizations, the redundant communication link switching mechanism is activated, and at the same time, a communication abnormality warning is sent to the command center through the alarm module. S8. During the emergency repair process, if the on-site repair area or communication environment changes, the environment perception module and fault detection module will update the data in real time, and the information interaction module will synchronize the changed data to the RIS control unit and command center to ensure that the RIS communication enhancement strategy dynamically adapts to the changes in the scenario.

2. The RIS communication enhancement method for power emergency repair in a disaster-resistant environment according to claim 1, characterized in that: In S3, the priority of emergency repair needs includes emergency fault diagnosis, equipment scheduling, and personnel safety early warning information.

3. The RIS communication enhancement method for power emergency repair in a disaster-resistant environment according to claim 1, characterized in that: In S2, the environmental perception module uses a multi-dimensional sensing unit, including a signal strength sensor, an interference detector, and a channel analyzer, to collect communication environment parameters at a high frequency of 3 times per second to ensure data real-time performance.

4. The RIS communication enhancement method for power emergency repair in a disaster-resistant environment according to claim 1, characterized in that: In S7, the alarm module is connected to an external audible and visual alarm and a communication module linked with the command center. When communication is abnormal, the site issues an audible and visual warning and pushes information about the abnormal location and fault type to the command center.

5. The RIS communication enhancement method for power emergency repair in a disaster-resistant environment according to claim 1, characterized in that: In S8, the information interaction module supports bidirectional data transmission, enabling real-time interaction between the working status and communication quality indicators of the RIS device and the dispatch instructions of the command center, and synchronizing them to the display interface of the emergency repair terminal.

6. The RIS communication enhancement method for power emergency repair in a disaster-resistant environment according to claim 1, characterized in that: The beamforming optimization module employs an improved particle swarm optimization algorithm, which introduces a dynamic adjustment mechanism for inertial weights. Combined with communication coverage and signal gain constraints, it improves the convergence speed and accuracy of phase optimization. The phase adjustment step size of the RIS reflector unit is dynamically adapted according to the channel change rate.

7. The RIS communication enhancement method for power emergency repair in a disaster-resistant environment according to claim 1, characterized in that: The adaptive modulation and coding technology of the channel adaptation module presets multiple modulation and coding schemes, including QPSK, 16QAM, and 64QAM. It selects the optimal scheme in real time according to the channel signal-to-noise ratio to ensure communication stability under different interference intensities.

8. The RIS communication enhancement method for power emergency repair in a disaster-resistant environment according to claim 1, characterized in that: In S7, the redundant communication link switching mechanism includes a satellite communication link and an emergency shortwave link. The RIS control unit automatically selects the switching link based on the communication quality detection results, and the switching process delay does not exceed 50ms, ensuring communication continuity.

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