Intelligent operation and maintenance monitoring system of meteorological radar station based on multi-sensor fusion

Abstract

The application relates to the technical field of operation and maintenance management, and discloses an intelligent operation and maintenance monitoring system for a meteorological radar station based on multi-sensor fusion, which comprises multiple sensors and a refracting mirror group. The sensors are used for acquiring working data of two adjacent antenna transmitters. The multiple sensors comprise an image sensor, a temperature monitoring sensor, a posture sensor and an infrared sensor. The refracting mirror group comprises a multi-surface refracting mirror and a display panel. The refracting mirror is used for refracting infrared rays emitted by the infrared sensor, and the display panel is used for displaying an infrared irradiation point. A comparison and analysis module is used for judging whether the antenna transmitters of the two adjacent meteorological radar stations are faulty. If the antenna transmitters are faulty, the comparison and analysis module enters a fault analysis module. Infrared light beams are emitted by the infrared sensor, are refracted by the refracting mirror group multiple times, and finally are presented on the display panel. The position of the infrared light beam landing point on the display panel is acquired, and whether the azimuth and elevation turntables of the antenna transmitters are faulty is judged.

Description

Technical Field

[0001] This invention relates to the field of operation and maintenance management technology, specifically to an intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion. Background Technology

[0002] Meteorological radar stations are meteorological observation sites that use meteorological radar to detect atmospheric phenomena within their effective range, and are an important part of the national weather monitoring network. By emitting electromagnetic waves and receiving scattered echoes from targets such as precipitation and clouds, combined with Doppler and dual-polarization technologies, they can monitor in real time the dynamic changes in precipitation intensity, wind field structure, particle morphology, and severe weather. The antenna transmitter of a weather radar station is the core component of the radar system, responsible for transmitting and receiving electromagnetic wave signals. It usually adopts a directional antenna design, which focuses energy through a parabolic reflector to form a narrow beam to improve detection accuracy and spatial resolution. The transmitter can adjust the elevation and azimuth angles to cover targets at different heights and distances. During normal use, in order to avoid the inability to obtain meteorological data due to antenna transmitter failure, most weather radar stations will set up a second antenna transmitter nearby, so as to minimize the phenomenon that meteorological data cannot be obtained for a short period of time due to the failure of one device. The azimuth and elevation angles of the antenna transmitter are adjusted through a mechanical transmission structure. During long-term use, malfunctions inevitably occur, leading to antenna positioning deviations and a decrease in the accuracy of meteorological data acquisition. During maintenance, in order to determine whether the azimuth or elevation turntable is faulty, manual inspection of the azimuth and elevation turntables is required, resulting in a long fault-finding cycle. To address the shortcomings of existing technologies, this invention proposes an intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion. Summary of the Invention

[0003] The purpose of this invention is to provide an intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion, which solves the problem in the prior art that manual inspection of the position and elevation turntable is required during maintenance, resulting in a long fault finding cycle.

[0004] The objective of this invention can be achieved through the following technical solutions: The intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion includes the following modules: The data acquisition module includes multiple sensors and a refractive mirror group. The sensors are used to acquire the operating data of two adjacent antenna transmitters. The multiple sensors include an image sensor, a temperature monitoring sensor, an attitude sensor, and an infrared sensor. The refractive mirror assembly includes a multifaceted refractive mirror and a display panel. The refractive mirror is used to refract infrared light emitted by the infrared sensor, and the display panel is used to display the infrared illumination point.

[0005] The comparison and analysis module is used to determine whether the antenna transmitters of the two adjacent weather radar stations are faulty. If a fault is found, the system will proceed to the fault analysis module. The fault analysis module is used to combine the antenna transmitter operating data acquired by multiple sensors to determine the fault type of the meteorological radar station antenna module that has malfunctioned. The maintenance and recording module is used to record the working and maintenance data of the weather radar station acquired by multiple sensors.

[0006] Preferably, the comparison and analysis module works as follows: Synchronously return both antenna transmitters to their initial positions; ensure that the elevation and azimuth angles of both antenna transmitters are the same after returning to their initial positions; Then, the infrared sensors mounted on the back of the parabolic surfaces of the two antenna transmitters are activated, causing the two infrared sensors to emit infrared beams toward the refractive mirror assembly. After the refraction mirror group receives two infrared beams, it generates emitted infrared beams. After being continuously refracted by the refraction mirror group, the two infrared beams finally illuminate the display panel. The distance between the two infrared beams is measured by capturing the landing points of two infrared beams on the display panel using an image sensor. When the center line of the display panel is located at the midpoint between the two infrared beam landing points, it represents two weather radar stations. If the vertical center line of the display panel deviates from the midpoint between the two infrared beam landing points by the error value, or if the vertical distance between the two infrared beam landing points exceeds the error, it represents that the azimuth and elevation turntable generated by at least one antenna transmitter has malfunctioned. Calculate the distance between the two infrared beam landing points and the center line of the display panel. Compare the distance between the infrared beam landing points and the center line of the display panel with the allowable error distance. If the distance between the landing points and the center line exceeds or falls below the error distance, it indicates that the antenna transmitter azimuth elevation stage has malfunctioned.

[0007] Preferably, the fault analysis module includes single-system fault analysis and dual-system fault analysis; The single-system fault analysis is used to perform fault analysis when one of the antenna transmitters of two adjacent weather radar stations malfunctions, and includes the following steps: S301. Calculate the distance from the point where the infrared beam that did not produce a fault fell to the vertical center line and the horizontal center line of the display panel. S302. Calculate the distance from the point where the infrared beam that caused the fault fell to the vertical center line and the horizontal center line of the display panel. S303. Calculate the difference between the distance from the landing point of the infrared beam that did not cause a fault to the vertical center line of the display panel and the distance from the landing point of the infrared beam that caused a fault to the vertical center line of the display panel, and determine whether the antenna transmitter azimuth turntable has malfunctioned. S304. Calculate the difference between the distance from the landing point of the infrared beam that did not cause a fault to the horizontal center of the display panel and the distance from the landing point of the infrared beam that caused a fault to the horizontal center of the display panel, and determine whether the pitch turntable of the antenna transmitter has malfunctioned.

[0008] Preferably, the dual-system fault analysis is used to perform fault analysis when both adjacent weather radar stations experience faults, and includes the following steps: S401. Start the control system of the antenna transmitter in the antenna transmitter, so that the antenna transmitter is in the initial angle and initial azimuth. Select multiple test parameters to perform multiple tests on the antenna transmitter. Input the azimuth and elevation angle data in the test parameters into the control system, so that the antenna transmitter works according to the azimuth turning first and then the elevation turning. S402. Using multiple image sensors, capture and record the position of the top of the antenna transmitter from at least two angles as the azimuth and elevation angles are adjusted, and generate a motion trajectory; S403. When the antenna transmitter stops adjusting, the encoder detects the actual position of the top of the antenna transmitter, and the infrared sensor is activated to emit an infrared beam and obtain the landing position of the infrared beam on the display panel. S404. Compare the acquired multiple antenna transmitter top motion trajectories with the motion trajectories recorded in the test parameters to obtain the differences between the multiple motion trajectories. S405. Compare the actual position of the antenna transmitter obtained by multiple encoders during the test with the actual position of the top of the antenna transmitter in multiple test parameters, and combine the motion trajectory difference to determine whether the azimuth turntable or pitch turntable of the antenna transmitter is faulty.

[0009] Preferably, the method for obtaining the motion trajectory difference is as follows: S501. Obtain the trajectory of the azimuth adjustment change at the top of the antenna transmitter through the image sensor at the top of the antenna sensor. S502. The trajectory of the pitch angle adjustment change at the top of the antenna transmitter is obtained through the image sensor on the side of the antenna transmitter. S503. Using the position of the top of the antenna transmitter before azimuth adjustment as the origin of the coordinate axis, construct a three-dimensional coordinate system, and generate azimuth adjustment change curves and pitch angle adjustment change curves in the three-dimensional coordinate system. S504. Input the antenna transmitter top change curve from the test parameters into the coordinate system to generate the azimuth adjustment test curve and the pitch angle adjustment test curve. S505. Calculate the motion trajectory difference using the following formula. :

[0010] in, This is the straight-line distance from the top of the antenna transmitter to the antenna mount. This refers to the elevation angle during antenna transmitter testing. For the pitch angle in the test parameters, This refers to the azimuth angle during antenna transmitter testing. For the direction, azimuth, and angle parameters in the measurement settings.

[0011] Preferably, the multiple test data are historical weather radar station antenna transmitter operating data recorded by image sensors, environmental monitoring sensors, attitude sensors, and encoders, as well as image data of infrared beams falling on the display panel.

[0012] Preferably, the maintenance and recording module includes the working data of the weather radar station antenna transmitter recorded by the image sensor, environmental monitoring sensor, attitude sensor, and encoder, as well as the data on the number of times the antenna transmitter was maintained and the maintenance location.

[0013] The beneficial effects of this invention are: 1. This invention acquires various data of the antenna transmitter during operation through multiple sensors. When the antenna transmitter returns to its initial position, it uses an infrared sensor to emit an infrared beam. After multiple refractions by a refractive mirror group, the landing point of the infrared beam is finally displayed on the display panel. By acquiring the position of the landing point of the infrared beam on the display panel, it is determined whether the azimuth and elevation turntable of the antenna transmitter has malfunctioned. When the azimuth and elevation state of the antenna transmitter malfunctions, the fault analysis module is used to further determine the degree of azimuth turntable malfunction, thereby facilitating maintenance personnel to quickly find the fault location and repair the antenna transmitting equipment in a timely manner.

[0014] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a module framework diagram of the intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion, as described in this invention.

[0017] Figure 2 This is a schematic diagram illustrating the principle of the intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion according to the present invention. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1 As shown, this invention is an intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion, comprising the following modules: The data acquisition module includes multiple sensors and a refractor group. The sensors are used to acquire the operating data of two adjacent antenna transmitters. The multiple sensors include an image sensor, a temperature monitoring sensor, an attitude sensor, and an infrared sensor. The refractor assembly includes a multifaceted refractor and a display panel. The refractor is used to refract the infrared light emitted by the infrared sensor, and the display panel is used to display the infrared illumination point.

[0020] The comparison and analysis module is used to determine whether the antenna transmitters of two adjacent weather radar stations are faulty. If a fault is found, the system will proceed to the fault analysis module. The fault analysis module is used to combine the antenna transmitter operating data obtained from multiple sensors to determine the fault type of the weather radar station antenna module. The maintenance and recording module is used to record the working and maintenance data of the weather radar station acquired by multiple sensors.

[0021] Specifically, multiple image sensors, temperature monitoring sensors, and attitude sensors are provided, respectively located inside and outside the antenna transmitter. The image sensors consist of multiple high-definition cameras used to capture the movement trajectory of the top of the antenna transmitter and the parabolic surface of the antenna transmitter. The temperature monitoring sensors are used to obtain the gearbox temperature of the azimuth turntable and pitch turntable inside the antenna transmitter, as well as the ambient temperature of the day. The attitude sensors include devices such as gyroscopes and levels used to obtain the directional position and pitch angle of the antenna transmitter after adjusting the azimuth and pitch angles. An infrared sensor, fixed on one side of the back of the parabolic surface of the antenna transmitter, is used to emit an infrared beam and is mainly used in conjunction with the reflector group to determine whether the antenna transmitter has malfunctioned. The reflector group consists of multiple reflectors arranged at specified positions and angles. When the first reflector is irradiated by an infrared beam, the reflector generates a reflected beam, which reflects the infrared light into a refracting mirror at another angle. After multiple stages of adjustment, the infrared beam is finally irradiated onto the display panel. The display panel is mainly used to receive the last refracted infrared beam. After the infrared beam is refracted by the last refraction mirror, it shines on the surface of the display panel. The surface of the display panel is marked with a vertical center line and a horizontal center line. An image sensor for taking pictures and recording is also placed in front of the display panel. When the infrared beam shines on the surface of the display panel, the image sensor can take pictures of the point where the infrared beam hits the surface of the display panel, record and save them, so as to facilitate research, calculation and judgment on whether the antenna sensor has malfunctioned.

[0022] The comparison and analysis module works as follows: Synchronously return both antenna transmitters to their initial positions; ensure that the elevation and azimuth angles of both antenna transmitters are the same after returning to their initial positions; Then, the infrared sensors mounted on the back of the parabolic surfaces of the two antenna transmitters are activated, causing the two infrared sensors to emit infrared beams toward the refractive mirror assembly. After the refraction mirror group receives two infrared beams, it generates emitted infrared beams. After being continuously refracted by the refraction mirror group, the two infrared beams finally illuminate the display panel. The distance between the two infrared beams is measured by capturing the landing points of two infrared beams on the display panel using an image sensor. When the center line of the display panel is located at the midpoint between the two infrared beam landing points, it represents two weather radar stations. If the vertical center line of the display panel deviates from the midpoint between the two infrared beam landing points by the error value, or if the vertical distance between the two infrared beam landing points exceeds the error, it represents that the azimuth and elevation turntable generated by at least one antenna transmitter has malfunctioned. Calculate the distance between the two infrared beam landing points and the center line of the display panel. Compare the distance between the infrared beam landing points and the center line of the display panel with the allowable error distance. If the distance between the landing points and the center line exceeds or falls below the error distance, it indicates that the antenna transmitter azimuth elevation stage has malfunctioned.

[0023] Specifically, after the antenna transmitter completes a period of work each day, the antenna transmitter is adjusted to its initial position to determine if there is a fault in the azimuth and elevation angles of the antenna transmitter. If there is a fault in the azimuth and elevation angles of the antenna transmitter, the fault can be determined by observing the landing point of the infrared light on the display panel. When the azimuth turntable of the antenna transmitter malfunctions, the azimuth angle of the antenna transmitter will be obstructed to a certain extent, resulting in a corresponding difference in the horizontal position of the infrared sensor. At this time, the infrared sensor emits an infrared beam, which will have a certain left and right position shift and angle shift compared to when there is no malfunction. After being refracted by the multi-faceted refraction of the refractive mirror group, the position of the infrared beam illuminating the display panel will be shifted to a certain left and right from the vertical center line of the display panel, thus producing a distance difference. When the pitch turntable of the antenna transmitter malfunctions, the pitch angle of the antenna transmitter will be hindered to a certain extent, resulting in a corresponding difference in the vertical position of the infrared sensor. At this time, the infrared sensor emits an infrared beam, which will have a certain vertical position shift and angle shift compared to when there is no malfunction. After being refracted by the multi-faceted refraction of the refractive mirror group, the position of the infrared beam illuminating the display panel will have a certain vertical shift from the horizontal center line of the display panel, thus producing a distance difference. When the infrared sensors fixed on the back of the two antenna transmitters emit infrared beams simultaneously, two infrared beam landing points will be displayed on the display panel. At this time, the image sensor captures the image of the display panel, thus obtaining an image of the two infrared beam landing points on the display panel. By measuring the distance, if the vertical center line of the display panel deviates significantly from the midpoint between the two infrared beam landing points, or if the relative vertical distance between the two infrared beam landing points is large, it indicates that at least one of the two antenna transmitters is faulty. At this point, by calculating the distance between the infrared beam landing point on the display panel and the vertical and horizontal center lines of the display panel, and comparing the obtained distance with the maximum and minimum error values, it can be preliminarily determined that the azimuth or elevation turntable of the antenna transmitter is malfunctioning.

[0024] The fault analysis module includes single-system fault analysis and dual-system fault analysis; Single-system fault analysis is used to perform fault analysis when one of the antenna transmitters of two adjacent weather radar stations malfunctions. The analysis includes the following steps: S301. Calculate the distance from the point where the infrared beam that did not produce a fault fell to the vertical center line and the horizontal center line of the display panel. S302. Calculate the distance from the point where the infrared beam that caused the fault fell to the vertical center line and the horizontal center line of the display panel. S303. Calculate the difference between the distance from the landing point of the infrared beam that did not cause a fault to the vertical center line of the display panel and the distance from the landing point of the infrared beam that caused a fault to the vertical center line of the display panel, and determine whether the antenna transmitter azimuth turntable has malfunctioned. S304. Calculate the difference between the distance from the landing point of the infrared beam that did not cause a fault to the horizontal center of the display panel and the distance from the landing point of the infrared beam that caused a fault to the horizontal center of the display panel, and determine whether the pitch turntable of the antenna transmitter has malfunctioned.

[0025] Specifically, when only one of the two antenna transmitters malfunctions, the distance between the infrared beam landing point of the transmitter that did not malfunction and the vertical and horizontal center lines of the display panel is compared with the distance between the infrared beam landing point of the transmitter that malfunctioned and the vertical and horizontal center lines of the display panel. Based on the difference in the comparison results, the degree of failure of the azimuth turntable and pitch state of the malfunctioning antenna transmitter is determined. The greater the degree of failure, the greater the difference; the smaller the degree of failure, the smaller the difference.

[0026] Dual-system fault analysis is used to analyze faults when both adjacent weather radar stations experience failures, and includes the following steps: S401. Start the control system of the antenna transmitter in the antenna transmitter, so that the antenna transmitter is in the initial angle and initial azimuth. Select multiple test parameters to perform multiple tests on the antenna transmitter. Input the azimuth and elevation angle data in the test parameters into the control system, so that the antenna transmitter works according to the azimuth turning first and then the elevation turning. S402. Using multiple image sensors, capture and record the position of the top of the antenna transmitter from at least two angles as the azimuth and elevation angles are adjusted, and generate a motion trajectory; S403. When the antenna transmitter stops adjusting, the encoder detects the actual position of the top of the antenna transmitter, and the infrared sensor is activated to emit an infrared beam and obtain the landing position of the infrared beam on the display panel. S404. Compare the acquired multiple antenna transmitter top motion trajectories with the motion trajectories recorded in the test parameters to obtain the differences between the multiple motion trajectories. S405. Compare the actual position of the antenna transmitter obtained by multiple encoders during the test with the actual position of the top of the antenna transmitter in multiple test parameters, and combine the motion trajectory difference to determine whether the azimuth turntable or pitch turntable of the antenna transmitter is faulty.

[0027] Specifically, when both antenna transmitters malfunction, it is impossible to obtain the relative positions of the infrared beam landing points of the two transmitters by comparison. In this case, parameter testing is used for fault analysis. The antenna transmitter's operating data, recorded by various sensors, is used to input the azimuth and elevation angles recorded in the operating data into the control system when the antenna transmitter malfunctions. This allows the control system to adjust the antenna transmitter according to the set azimuth and elevation angles, first adjusting the azimuth and then the elevation angle. During the antenna transmitter adjustment process, the motion trajectory of the top of the antenna transmitter is captured in real time by an image sensor. After the antenna transmitter stops adjusting and reaches the designated position, the recorded motion trajectory is compared with the motion trajectory recorded in the test parameters, and the difference in motion trajectory is calculated. Thus, it is possible to further determine whether there is a fault in the azimuth or elevation turntable of the antenna transmitter.

[0028] The method for obtaining the difference in motion trajectory is as follows: S501. Obtain the trajectory of the azimuth adjustment change at the top of the antenna transmitter through the image sensor at the top of the antenna sensor. S502. The trajectory of the pitch angle adjustment change at the top of the antenna transmitter is obtained through the image sensor on the side of the antenna transmitter. S503. Using the position of the top of the antenna transmitter before azimuth adjustment as the origin of the coordinate axis, construct a three-dimensional coordinate system, and generate azimuth adjustment change curves and pitch angle adjustment change curves in the three-dimensional coordinate system. S504. Input the antenna transmitter top change curve from the test parameters into the coordinate system to generate the azimuth adjustment test curve and the pitch angle adjustment test curve. S505. Calculate the motion trajectory difference using the following formula. :

[0029] in, This is the straight-line distance from the top of the antenna transmitter to the antenna mount. This refers to the elevation angle during antenna transmitter testing. For the pitch angle in the test parameters, This refers to the azimuth angle during antenna transmitter testing. For the direction, azimuth, and angle parameters in the measurement settings.

[0030] Specifically, when testing the antenna transmitter, in order to determine whether the azimuth or pitch turntable is malfunctioning, two image sensor devices are used to capture the motion trajectory of the antenna transmitter when it is rotating in azimuth and pitch. After acquiring the motion trajectory, a three-dimensional coordinate system is constructed with the top of the antenna transmitter, whose initial position has not been adjusted, as the origin. The motion trajectory of the antenna transmitter is approximately an arc with a constant radius. Thus, after inputting the motion trajectory data into the three-dimensional coordinate system, the motion trajectory appears as an arc. The motion trajectory from the test parameters is then further input into the three-dimensional coordinate system. The difference between the two arcs is obtained by calculating their lengths, which determines whether the pitch turntable is malfunctioning. The larger the difference in motion trajectory, the more severe the pitch malfunction. Similarly, the motion trajectory for azimuth adjustment is input into the three-dimensional coordinate system and compared with the motion trajectory in the test parameters to obtain the difference in motion trajectory, which determines whether the azimuth turntable is malfunctioning.

[0031] Multiple test data points include historical weather radar station antenna transmitter operating data recorded by image sensors, environmental monitoring sensors, attitude sensors, and encoders, as well as image data showing the infrared beam landing point on the display panel.

[0032] The maintenance and recording module includes the working data of the weather radar station antenna transmitter recorded by the image sensor, environmental monitoring sensor, attitude sensor, and encoder, as well as the number of times the antenna transmitter was maintained and the data of the maintenance parts.

[0033] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A meteorological radar station intelligent operation and maintenance monitoring system based on multi-sensor fusion, characterized in that, Includes the following modules: The data acquisition module includes multiple sensors and a refractive mirror group. The sensors are used to acquire the operating data of two adjacent antenna transmitters. The multiple sensors include an image sensor, a temperature monitoring sensor, an attitude sensor, and an infrared sensor. The refractive mirror assembly includes a multifaceted refractive mirror and a display panel. The refractive mirror is used to refract infrared light emitted by the infrared sensor, and the display panel is used to display the infrared illumination point. The comparison and analysis module is used to determine whether the antenna transmitters of two adjacent weather radar stations are faulty. If a fault is found, the system will proceed to the fault analysis module. The fault analysis module is used to combine the antenna transmitter operating data acquired by multiple sensors to determine the fault type of the meteorological radar station antenna module that has malfunctioned. The maintenance and recording module is used to record the working and maintenance data of the weather radar station acquired by multiple sensors; The comparison and analysis module works as follows: Synchronously return both antenna transmitters to their initial positions; ensure that the elevation and azimuth angles of both antenna transmitters are the same after returning to their initial positions; Then, the infrared sensors mounted on the back of the parabolic surfaces of the two antenna transmitters are activated, causing the two infrared sensors to emit infrared beams toward the refractive mirror assembly. After the refraction mirror group receives two infrared beams, it generates emitted infrared beams. After being continuously refracted by the refraction mirror group, the two infrared beams finally illuminate the display panel. The distance between the two infrared beams is measured by capturing the landing points of two infrared beams on the display panel using an image sensor. When the center line of the display panel is located at the midpoint between the two infrared beam landing points, it means that the antenna transmitters of the two weather radar stations are normal. If the vertical center line of the display panel deviates from the midpoint between the two infrared beam landing points or the vertical distance between the two infrared beam landing points exceeds the error, it means that the azimuth and elevation turntable generated by at least one antenna transmitter is malfunctioning. Calculate the distance between the two infrared beam landing points and the center line of the display panel. Compare the distance between the infrared beam landing points and the center line of the display panel with the allowable error distance. If the distance between the landing points and the center line exceeds or falls below the error distance, it indicates that the antenna transmitter azimuth elevation stage has malfunctioned.

2. The intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion as described in claim 1, characterized in that, The fault analysis module includes single-system fault analysis and dual-system fault analysis. The single-system fault analysis is used to perform fault analysis when one of the antenna transmitters of two adjacent weather radar stations malfunctions, and includes the following steps: S301. Calculate the distance from the point where the infrared beam that did not produce a fault fell to the vertical center line and the horizontal center line of the display panel. S302. Calculate the distance from the point where the infrared beam that caused the fault fell to the vertical center line and the horizontal center line of the display panel. S303. Calculate the difference between the distance from the landing point of the infrared beam that did not cause a fault to the vertical center line of the display panel and the distance from the landing point of the infrared beam that caused a fault to the vertical center line of the display panel, and determine whether the antenna transmitter azimuth turntable has malfunctioned. S304. Calculate the difference between the distance from the landing point of the infrared beam that did not cause a fault to the horizontal center of the display panel and the distance from the landing point of the infrared beam that caused a fault to the horizontal center of the display panel, and determine whether the pitch turntable of the antenna transmitter has malfunctioned.

3. The intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion according to claim 2, characterized in that, The dual-system fault analysis is used to perform fault analysis when both adjacent weather radar stations experience faults, and includes the following steps: S401. Start the control system of the antenna transmitter in the antenna transmitter, so that the antenna transmitter is in the initial angle and initial azimuth. Select multiple test parameters to perform multiple tests on the antenna transmitter. Input the azimuth and elevation angle data in the test parameters into the control system, so that the antenna transmitter works according to the azimuth turning first and then the elevation turning. S402. Using multiple image sensors, capture and record the position of the top of the antenna transmitter from at least two angles as the azimuth and elevation angles are adjusted, and generate a motion trajectory; S403. When the antenna transmitter stops adjusting, the encoder detects the actual position of the top of the antenna transmitter, and the infrared sensor is activated to emit an infrared beam and obtain the landing position of the infrared beam on the display panel. S404. Compare the acquired multiple antenna transmitter top motion trajectories with the motion trajectories recorded in the test parameters to obtain the differences between the multiple motion trajectories. S405. Compare the actual position of the antenna transmitter obtained by multiple encoders during the test with the actual position of the top of the antenna transmitter in multiple test parameters, and combine the motion trajectory difference to determine whether the azimuth turntable or pitch turntable of the antenna transmitter is faulty.

4. The intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion according to claim 3, characterized in that, The method for obtaining the motion trajectory difference is as follows: S501. Obtain the trajectory of the azimuth adjustment change at the top of the antenna transmitter through the image sensor at the top of the antenna sensor. S502. The trajectory of the pitch angle adjustment change at the top of the antenna transmitter is obtained through the image sensor on the side of the antenna transmitter. S503. Using the position of the top of the antenna transmitter before azimuth adjustment as the origin of the coordinate axis, construct a three-dimensional coordinate system, and generate azimuth adjustment change curves and pitch angle adjustment change curves in the three-dimensional coordinate system. S504. Input the antenna transmitter top change curve from the test parameters into the coordinate system to generate the azimuth adjustment test curve and the pitch angle adjustment test curve. S505. Calculate the motion trajectory difference using the following formula. : ； in, This is the straight-line distance from the top of the antenna transmitter to the antenna mount. This refers to the elevation angle during antenna transmitter testing. For the pitch angle in the test parameters, This refers to the azimuth angle during antenna transmitter testing. For the direction, azimuth, and angle parameters in the measurement settings.

5. The intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion according to claim 3, characterized in that, Multiple test data points include historical weather radar station antenna transmitter operating data recorded by image sensors, environmental monitoring sensors, attitude sensors, and encoders, as well as image data showing the infrared beam landing point on the display panel.

6. The intelligent operation and maintenance monitoring system for meteorological radar stations based on multi-sensor fusion according to claim 1, characterized in that, The maintenance and recording module includes the working data of the weather radar station antenna transmitter recorded by the image sensor, environmental monitoring sensor, attitude sensor, and encoder, as well as the number of times the antenna transmitter was maintained and the data of the maintenance parts.

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