RIS-based severe weather electric power emergency repair communication system

Abstract

The invention discloses an RIS-based severe weather electric power emergency repair communication system, which belongs to the technical field of emergency communication and comprises an RIS intelligent array, a central scheduling processor, a meteorological channel sensing component, a power grid damage identification module, an electromagnetic energy directional regulation and control device and a transmission protocol dynamic matching unit. According to the invention, the meteorological channel sensing assembly and the power grid damage identification module are arranged, the meteorological channel sensing assembly and the power grid damage identification module are connected to the central scheduling processor in parallel, and a first-aid repair task emergency degree grading system is fused, so that a communication coverage sector and a link quality threshold value which need to be preferentially guaranteed can be accurately calculated; the attitude parameters and the channel report are interacted in real time through the multidirectional data synchronization interface, adaptive adjustment of the strategy along with meteorological evolution is ensured, the problems of resource mismatching and blind coverage caused by lack of environmental perception in emergency communication are avoided, and the resource utilization efficiency and command and dispatch accuracy of emergency repair communication in severe weather are improved.

Description

Technical Field

[0001] This invention belongs to the field of emergency communication technology, specifically a RIS-based emergency power repair communication system for severe weather. Background Technology

[0002] With the intensification of climate change and the increasing frequency of extreme weather events, natural disasters such as typhoons, rainstorms, snowstorms, and thunderstorms have caused severe damage to power infrastructure, leading to frequent large-scale power outages. In power emergency repair scenarios, the rapid establishment of stable and reliable emergency communication links is a crucial prerequisite for ensuring emergency command and dispatch, personnel safety positioning, and fault information feedback. However, existing emergency communication technologies have significant shortcomings when facing severe weather conditions: On the one hand, traditional emergency communication systems lack the ability to integrate and perceive meteorological environment and power grid damage status in real time, and cannot dynamically acquire key parameters such as channel attenuation, multipath fading, and interference distribution. They usually adopt fixed coverage modes or manual experience configuration, resulting in a serious mismatch between communication resources and repair needs. Communication quality cannot be guaranteed in critical areas such as storm centers or areas severely affected by icing. On the other hand, existing systems generally adopt an open-loop architecture, lacking a closed-loop feedback and adaptive optimization mechanism based on link performance monitoring. Faced with the rapid time-varying characteristics of channels in rain, snow, and freezing environments, they cannot adjust beam pointing and transmission parameters in real time. After a link is interrupted, they rely on manual diagnosis and recovery, with response times extended by several minutes or even longer, making it difficult to meet the stringent timeliness requirements of power repair tasks. In addition, existing emergency communication equipment mostly uses a single transmission link, lacking intelligent coordination and rapid switching capabilities between primary and backup links. Once the primary link fails due to atmospheric discharge or strong multipath effects, the system is paralyzed, and the continuity of repair operations cannot be guaranteed. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, this invention provides a RIS-based emergency power repair communication system for severe weather. It addresses the lack of real-time fusion perception of meteorological conditions and power grid damage status in traditional emergency communication systems. This system cannot dynamically acquire key parameters such as channel attenuation, multipath fading, and interference distribution. It typically employs fixed coverage patterns or manual experience-based configuration, leading to a severe mismatch between communication resources and repair needs. Communication quality cannot be guaranteed in critical areas such as storm centers or areas severely affected by icing. Furthermore, existing systems generally use open-loop architectures, lacking closed-loop feedback and adaptive optimization mechanisms based on link performance monitoring. Faced with the rapidly changing characteristics of channels in rain, snow, and freezing environments, they cannot adjust beam pointing and transmission parameters in real time. Link interruptions rely on manual diagnosis and recovery, resulting in response times extended by several minutes or even longer, failing to meet the stringent timeliness requirements of power repair tasks. Once the primary link fails due to atmospheric discharge or strong multipath effects, the system becomes paralyzed, unable to guarantee the continuity of repair operations.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a RIS-based power emergency repair communication system for severe weather, comprising a RIS intelligent array, a central dispatch processor, a meteorological channel sensing component, a power grid damage identification module, an electromagnetic energy directional control device, a transmission protocol dynamic matching unit, a link performance evaluation module, an anomaly warning release unit, and a multi-directional data synchronization interface. The outputs of the meteorological channel sensing component and the power grid damage identification module are connected in parallel to the input of the central dispatch processor. The output of the central dispatch processor is connected in three ways: the first way is connected to the electromagnetic energy directional control device to issue beamforming decision commands; the second way is connected to the transmission protocol dynamic matching unit to issue modulation and coding switching commands; and the third way is connected to the anomaly warning release unit to trigger the warning release action. The output of the electromagnetic energy directional control device is connected to the phase control interface of the RIS intelligent array. The RIS intelligent array and the multi-directional data synchronization interface establish a bidirectional data channel. The input of the link performance evaluation module monitors the link status between the transmission protocol dynamic matching unit and the RIS intelligent array, and its output is fed back to the optimization decision loop of the central dispatch processor to form a closed-loop control. The RIS intelligent array is deployed in the emergency repair area. It completes three-dimensional position registration with the emergency repair mobile terminal and the rear dispatch center through the spatial coordinate calibration unit, and is connected to the temporary power supply network. The meteorological channel sensing component is used to acquire in real time the channel attenuation characteristics, interference source spectrum distribution and atmospheric multipath fading parameters under severe weather conditions. The power grid damage identification module is used to collect the geographical coordinates of transmission line fault points and equipment damage level data. The two types of data streams are input into the central dispatch processor in parallel. The central dispatch processor calculates the communication coverage sectors that need to be prioritized and the link quality threshold values ​​based on the received meteorological and power grid data and the emergency level classification system for emergency repair tasks. The electromagnetic energy directional control device, based on the decision output of the central scheduling processor, uses a genetic evolution optimization strategy to iteratively optimize the phase offset of each element in the RIS intelligent array, forming a directional beamforming to concentrate energy to cover the target sector. The transmission protocol dynamic matching unit continuously monitors the physical layer channel status information. Combining the fast time-varying characteristics of the channel under rain, snow and ice conditions, it uses intelligent variable parameter transmission technology to automatically switch the modulation order and coding redundancy to suppress fading and compensate for signal-to-noise ratio fluctuations. The link performance evaluation module periodically collects end-to-end latency, block error rate, and received signal strength indicators, and compares them with preset service thresholds. If any indicator deviates from the normal range, a feedback mechanism is triggered. After receiving the feedback signal, the central scheduling processor drives the electromagnetic energy directional control device and the transmission protocol dynamic matching unit to perform secondary collaborative optimization. If the optimization fails to meet the standard three times in a row, the backup transmission channel is activated and the abnormal warning release unit is instructed to take action. During emergency repair operations, the multi-directional data synchronization interface enables real-time bidirectional interaction between the attitude parameters and channel measurement reports of the RIS intelligent array and the instruction set of the scheduling center, ensuring that the system strategy adapts to changes in weather and the progress of the mission.

[0005] As a further aspect of the present invention: the emergency repair task urgency classification system includes three priority categories: fault isolation command transmission, emergency material allocation request, and operator positioning beacon transmission.

[0006] As a further aspect of the present invention: the meteorological channel sensing component consists of a sensing node array composed of a rainfall radar, a three-dimensional anemometer, and an atmospheric electric field strength meter, and performs continuous sampling of the channel attenuation characteristics every 200 milliseconds.

[0007] As a further embodiment of the present invention: the abnormal early warning release unit is connected to the external station sound and light alarm and the dispatch center linkage interface, and when triggered, it synchronously pushes the abnormal coordinates, interference type code and suggested switching mode.

[0008] As a further aspect of the present invention: the multi-directional data synchronization interface supports heterogeneous network protocol conversion, and projects the power consumption level and reflection efficiency index of the RIS smart array to the mobile terminal monitoring interface in real time.

[0009] As a further aspect of the present invention: the electromagnetic energy directional control device employs a genetic evolution optimization strategy that embeds an adaptive mutation operator, combined with coverage sector angle constraints and equivalent omnidirectional radiation power limitations, to accelerate the phase optimization convergence process, and the RIS array element phase adjustment step size is dynamically scaled according to the Doppler frequency shift.

[0010] As a further aspect of the present invention: the transmission protocol dynamic matching unit incorporates intelligent variable parameter transmission technology, pre-sets multiple modulation and coding combinations, and includes at least three modes: BPSK, 8PSK, and 32QAM. It automatically selects the optimal combination based on the measured signal-to-interference-plus-noise ratio to ensure link availability during hail and thunderstorm weather.

[0011] As a further aspect of the present invention: the backup transmission channel is composed of a high-altitude platform relay link and a ground microwave emergency link connected in parallel. The central dispatch processor automatically selects a route and switches according to the decision result of the link performance evaluation module, and the switching delay is controlled within 80 milliseconds.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, by setting up a meteorological channel sensing component and a power grid damage identification module, the meteorological channel sensing component and the power grid damage identification module are connected in parallel to the central dispatch processor. By integrating the emergency level classification system of emergency repair tasks, the dual-dimensional real-time perception and integrated intelligent judgment of the channel characteristics and power grid damage status in severe weather can be realized. It can accurately calculate the communication coverage sectors and link quality thresholds that need to be prioritized. The electromagnetic energy directional control device drives the RIS intelligent array to form directional beamforming, concentrate energy to cover high-value emergency repair areas, and interact with attitude parameters and channel reports in real time through a multi-directional data synchronization interface to ensure that the strategy adapts to the weather evolution. This avoids the resource misallocation and blind coverage problems caused by the lack of environmental perception in traditional emergency communication, and significantly improves the resource utilization efficiency and command and dispatch accuracy of emergency repair communication under severe weather conditions. 2. In this invention, by setting up a link performance evaluation module and a central dispatch processor, and linking the link performance evaluation module to the central dispatch processor in a closed-loop feedback loop, and linking the electromagnetic energy directional control device, real-time monitoring of the link status and coordinated dynamic optimization of beam and modulation coding parameters are achieved. This enables automatic compensation for signal-to-noise ratio fluctuations and suppression of deep fading in fast-time-varying channel environments such as rain, snow, ice, hail, and thunderstorms. Through the parallel architecture of the backup transmission channel and the 80-millisecond seamless switching mechanism, communication continuity is ensured. The abnormal early warning release unit synchronously pushes abnormal coordinates, interference types, and switching suggestions to the station's audible and visual alarms and the dispatch center, ensuring timely response to dangerous situations. Through the closed-loop collaborative operation of multiple modules, this invention provides continuous, highly adaptive, and highly reliable communication support for power emergency repairs under extreme weather conditions, reducing the risk of repair delays or personnel safety accidents caused by communication interruptions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the system of the present invention. 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-based power emergency repair communication system for severe weather, comprising a RIS intelligent array, a central dispatch processor, a meteorological channel sensing component, a power grid damage identification module, an electromagnetic energy directional control device, a transmission protocol dynamic matching unit, a link performance evaluation module, an anomaly warning release unit, and a multi-directional data synchronization interface. The outputs of the meteorological channel sensing component and the power grid damage identification module are connected in parallel to the input of the central dispatch processor. The output of the central dispatch processor is connected in three ways: the first way is connected to the electromagnetic energy directional control device to issue beamforming decision commands; the second way is connected to the transmission protocol dynamic matching unit to issue modulation and coding switching commands; and the third way is connected to the anomaly warning release unit to trigger the warning release action. The output of the electromagnetic energy directional control device is connected to the phase control interface of the RIS intelligent array. The RIS intelligent array and the multi-directional data synchronization interface establish a bidirectional data channel. The input of the link performance evaluation module monitors the link status between the transmission protocol dynamic matching unit and the RIS intelligent array, and its output is fed back to the optimization decision loop of the central dispatch processor to form a closed-loop control. The RIS intelligent array is deployed in the emergency repair area. It completes the three-dimensional position registration with the emergency repair mobile terminal and the rear dispatch center through the spatial coordinate calibration unit, and is connected to the temporary power supply network. The meteorological channel sensing component is used to acquire in real time the channel attenuation characteristics, interference source spectrum distribution and atmospheric multipath fading parameters under severe weather conditions. The power grid damage identification module is used to collect the geographical coordinates of transmission line fault points and equipment damage level data. The two types of data streams are input into the central dispatch processor in parallel. Based on the received meteorological and power grid data, and combined with the emergency response grading system, the central dispatch processor calculates the communication coverage sectors that need to be prioritized and the link quality threshold values. The electromagnetic energy directional control device uses a genetic evolution optimization strategy to iteratively optimize the phase offset of each element in the RIS intelligent array based on the decision output of the central scheduling processor, forming a directional beamforming to concentrate energy to cover the target sector. The transmission protocol dynamic matching unit continuously monitors the physical layer channel status information. Combining the fast time-varying characteristics of the channel under rain, snow and ice conditions, it uses intelligent variable parameter transmission technology to automatically switch the modulation order and coding redundancy to suppress fading and compensate for signal-to-noise ratio fluctuations. The link performance evaluation module periodically collects end-to-end latency, block error rate, and received signal strength indicators, and compares them with preset service thresholds. If any indicator deviates from the normal range, a feedback mechanism is triggered. After receiving the feedback signal, the central dispatch processor drives the electromagnetic energy directional control device and the transmission protocol dynamic matching unit to perform secondary collaborative optimization. If the optimization fails to meet the standard three times in a row, the backup transmission channel is activated and the abnormal warning release unit is instructed to take action. During emergency repair operations, the multi-directional data synchronization interface enables real-time bidirectional interaction between the attitude parameters and channel measurement reports of the RIS intelligent array and the instruction set of the scheduling center, ensuring that the system strategy adapts to changes in weather and the progress of the mission. The emergency repair task urgency classification system includes three priority categories: fault isolation command transmission, emergency material allocation request, and personnel positioning beacon transmission. The meteorological channel sensing component consists of a sensing node array composed of a rainfall radar, a three-dimensional anemometer, and an atmospheric electric field strength meter, which continuously samples the channel attenuation characteristics every 200 milliseconds. The abnormal early warning release unit connects to the external field station audible and visual alarm and the dispatch center's linkage interface. When triggered, it simultaneously pushes the abnormal coordinates, interference type code, and suggested mode switching. The multi-directional data synchronization interface supports heterogeneous network protocol conversion, projecting the power consumption level and reflection efficiency indicators of the RIS smart array to the mobile terminal monitoring interface in real time. The electromagnetic energy directional control device employs a genetic evolution optimization strategy that embeds an adaptive mutation operator. Combined with the coverage sector angle constraint and the equivalent omnidirectional radiation power limit, it accelerates the phase optimization convergence process. The phase adjustment step size of the RIS array element is dynamically scaled according to the magnitude of the Doppler frequency shift. The transmission protocol dynamic matching unit has built-in intelligent variable parameter transmission technology, with multiple preset modulation and coding combinations, including at least BPSK, 8PSK, and 32QAM modes. It automatically selects the optimal combination based on the measured signal-to-interference-plus-noise ratio to ensure link availability during hail and thunderstorm weather. The backup transmission channel consists of a high-altitude platform relay link and a ground microwave emergency link connected in parallel. The central dispatch processor automatically selects and switches routes based on the decision results of the link performance evaluation module, with the switching delay controlled within 80 milliseconds.

[0016] The working principle of this invention is as follows: After the system is deployed in the emergency repair area, the RIS intelligent array completes three-dimensional position registration with the repair mobile terminal and the rear dispatch center through spatial coordinate calibration and connects to the temporary power supply network. During operation, the meteorological channel sensing component, composed of a rain radar, a three-dimensional anemometer, and an atmospheric electric field strength meter, continuously collects channel attenuation, interference spectrum distribution, and multipath fading parameters under severe weather conditions at 200-millisecond intervals. At the same time, the power grid damage identification module synchronously acquires the coordinates of the transmission line fault point and the equipment damage level data. These two types of data streams are fed into the central dispatch processor in parallel. Based on the received real-time meteorological and power grid data, combined with the three-level urgency classification system of fault isolation command transmission, emergency material allocation request, and personnel positioning beacon transmission, the processor calculates the priority channels to be protected. The signal coverage sector range and link quality threshold are determined, and then three-way collaborative control commands are generated. For beamforming requirements, the electromagnetic energy directional control device adopts a genetic evolution optimization strategy with embedded adaptive mutation operators. Under the constraints of coverage sector angle and equivalent omnidirectional radiation power, the phase offset of each element of the RIS array is iteratively optimized. The phase adjustment step is scaled according to the Doppler frequency shift state, and finally a directional beam is formed to concentrate on covering the target area. For transmission reliability requirements, the transmission protocol dynamic matching unit continuously monitors the physical layer channel status information. It uses intelligent variable parameter transmission technology to automatically select the optimal mode from preset modulation and coding combinations such as BPSK, 8PSK, and 32QAM based on the measured signal-to-interference-plus-noise ratio. It dynamically switches the modulation order and coding redundancy to suppress fast channel fading and compensate for signal-to-noise ratio fluctuations. Meanwhile, the anomaly warning release unit remains on standby, with an interface connecting the external field station's audible and visual alarms to the dispatch center. The link performance evaluation module periodically collects end-to-end latency, block error rate, and received signal strength, comparing them with preset thresholds. Once the data deviates from the normal range, a feedback mechanism is triggered. Based on this, the central dispatch processor drives the electromagnetic energy directional control device and the transmission protocol dynamic matching unit to perform secondary collaborative optimization. If the optimization fails to meet the standard after three consecutive optimizations, it automatically switches to the backup transmission channel composed of the high-altitude platform relay link and the ground microwave emergency link in parallel, with the switching latency controlled within 80 milliseconds. At the same time, the anomaly warning release unit is activated to synchronously push the anomaly coordinates, interference type code, and suggested switching mode. Throughout the repair operation, the multi-directional data synchronization interface exchanges the RIS array attitude parameters, channel measurement reports, and dispatch center instruction sets bidirectionally in real time. Through heterogeneous network protocol conversion, the array power consumption, reflection efficiency, and other indicators are projected onto the mobile terminal monitoring interface, ensuring that the system strategy continuously adapts and adjusts with weather changes and task progress, forming a closed-loop control from perception, decision-making, execution to evaluation feedback, until the repair task is completed.

[0017] 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-based emergency power repair communication system for severe weather, comprising a RIS intelligent array, a central dispatch processor, a meteorological channel sensing component, a power grid damage identification module, an electromagnetic energy directional control device, a transmission protocol dynamic matching unit, a link performance evaluation module, an anomaly warning release unit, and a multi-directional data synchronization interface, characterized in that: The outputs of the meteorological channel sensing component and the power grid damage identification module are connected in parallel to the input of the central dispatch processor. The output of the central dispatch processor is connected in three ways: the first way is connected to the electromagnetic energy directional control device to issue beamforming decision commands; the second way is connected to the transmission protocol dynamic matching unit to issue modulation and coding switching commands; and the third way is connected to the abnormal early warning release unit to trigger early warning release actions. The output of the electromagnetic energy directional control device is connected to the phase control interface of the RIS intelligent array. The RIS intelligent array establishes a bidirectional data channel with the multi-directional data synchronization interface. The input of the link performance evaluation module monitors the link status between the transmission protocol dynamic matching unit and the RIS intelligent array, and its output is fed back to the optimization decision loop of the central dispatch processor to form a closed-loop control. The RIS intelligent array is deployed in the emergency repair area. It completes three-dimensional position registration with the emergency repair mobile terminal and the rear dispatch center through the spatial coordinate calibration unit, and is connected to the temporary power supply network. The meteorological channel sensing component is used to acquire in real time the channel attenuation characteristics, interference source spectrum distribution and atmospheric multipath fading parameters under severe weather conditions. The power grid damage identification module is used to collect the geographical coordinates of transmission line fault points and equipment damage level data. The two types of data streams are input into the central dispatch processor in parallel. The central dispatch processor calculates the communication coverage sectors that need to be prioritized and the link quality threshold values ​​based on the received meteorological and power grid data and the emergency level classification system for emergency repair tasks. The electromagnetic energy directional control device, based on the decision output of the central scheduling processor, uses a genetic evolution optimization strategy to iteratively optimize the phase offset of each element in the RIS intelligent array, forming a directional beamforming to concentrate energy to cover the target sector. The transmission protocol dynamic matching unit continuously monitors the physical layer channel status information. Combining the fast time-varying characteristics of the channel under rain, snow and ice conditions, it uses intelligent variable parameter transmission technology to automatically switch the modulation order and coding redundancy to suppress fading and compensate for signal-to-noise ratio fluctuations. The link performance evaluation module periodically collects end-to-end latency, block error rate, and received signal strength indicators, and compares them with preset service thresholds. If any indicator deviates from the normal range, a feedback mechanism is triggered. After receiving the feedback signal, the central scheduling processor drives the electromagnetic energy directional control device and the transmission protocol dynamic matching unit to perform secondary collaborative optimization. If the optimization fails to meet the standard three times in a row, the backup transmission channel is activated and the abnormal warning release unit is instructed to take action. During emergency repair operations, the multi-directional data synchronization interface enables real-time bidirectional interaction between the attitude parameters and channel measurement reports of the RIS intelligent array and the instruction set of the scheduling center, ensuring that the system strategy adapts to changes in weather and the progress of the mission.

2. The RIS-based emergency power repair communication system for severe weather as described in claim 1, characterized in that: The emergency response urgency classification system includes three priority categories: fault isolation command transmission, emergency material allocation request, and personnel positioning beacon transmission.

3. The RIS-based emergency power repair communication system for severe weather as described in claim 1, characterized in that: The meteorological channel sensing component consists of a sensing node array composed of a rainfall radar, a three-dimensional anemometer, and an atmospheric electric field strength meter, which continuously samples the channel attenuation characteristics every 200 milliseconds.

4. The RIS-based emergency power repair communication system for severe weather as described in claim 1, characterized in that: The abnormal early warning release unit connects to the external station's audible and visual alarm and the dispatch center's linkage interface. When triggered, it simultaneously pushes the abnormal coordinates, interference type code, and suggested mode switching.

5. A RIS-based emergency power repair communication system for severe weather as described in claim 1, characterized in that: The multi-directional data synchronization interface supports heterogeneous network protocol conversion, projecting the power consumption level and reflection efficiency of the RIS smart array to the mobile terminal monitoring interface in real time.

6. A RIS-based emergency power repair communication system for severe weather as described in claim 1, characterized in that: The electromagnetic energy directional control device employs a genetic evolution optimization strategy that embeds an adaptive mutation operator. Combined with coverage sector angle constraints and equivalent omnidirectional radiation power limitations, it accelerates the phase optimization convergence process. The phase adjustment step size of the RIS array element is dynamically scaled according to the magnitude of the Doppler frequency shift.

7. A RIS-based emergency power repair communication system for severe weather as described in claim 1, characterized in that: The transmission protocol dynamic matching unit incorporates intelligent variable parameter transmission technology, with multiple preset modulation and coding combinations including BPSK, 8PSK, and 32QAM modes. It automatically selects the optimal combination based on the measured signal-to-interference-plus-noise ratio (SINR) to ensure link availability during hail and thunderstorm weather.

8. A RIS-based emergency power repair communication system for severe weather as described in claim 1, characterized in that: The backup transmission channel consists of a high-altitude platform relay link and a ground microwave emergency link connected in parallel. The central dispatch processor automatically selects a route and switches based on the decision result of the link performance evaluation module, with the switching delay controlled within 80 milliseconds.

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