Electric power tower inclination angle detection system
By combining GNSS antenna and board-based calculation processing with ground augmentation services to optimize positioning data, and by incorporating meteorological and soil consolidation parameters for tilt compensation, the problem of low efficiency and insufficient accuracy in traditional power pole tilt detection has been solved, achieving efficient and automated pole tilt monitoring and visual management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional methods for detecting the tilt angle of power poles are inefficient, making it difficult to achieve real-time and continuous monitoring. They also lack positioning accuracy, affecting the accuracy of pole tilt angle calculations and failing to detect minute tilt changes in a timely manner. Furthermore, existing GNSS positioning technology has insufficient anti-interference capabilities in complex environments.
The system utilizes GNSS antennas and boards to process satellite signals, combines adaptive signal denoising units and joint unwrapping algorithms to obtain high-precision single-point positioning data, optimizes positioning data through ground augmentation services, performs tilt compensation by combining meteorological and soil consolidation parameters, acquires initial tilt data using a multi-point tilt acquisition device, and finally displays tilt angle and location information on a map.
It has achieved high-precision, all-weather, automated tower tilt monitoring, which has improved detection efficiency, reduced labor costs, timely detected safety hazards, and ensured the stable operation of the power system.
Smart Images
Figure CN121739975A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of electric power towers, more particularly, it relates to an electric power tower inclination detection system. BACKGROUND
[0002] In the operation and maintenance management of electric power towers, the detection of tower inclination is a key link to ensure the safe and stable operation of the power system. Traditional tower inclination detection methods have many shortcomings, for example, manual detection methods are not only inefficient, but also require a lot of manpower and resources, and it is difficult to achieve real-time and continuous monitoring, often unable to detect small changes in tower inclination in a timely manner. Some detection devices based on traditional sensors have limited positioning accuracy and cannot meet the demand for high-precision monitoring, and have insufficient anti-interference ability in complex environments, resulting in large errors in detection data. With the continuous expansion of the power system and the increasing demand for power supply reliability, traditional detection methods have been unable to meet the requirements of modern power operation and maintenance. At the same time, in the positioning technology, the early GNSS single-point positioning technology has low positioning accuracy due to the influence of factors such as satellite signal propagation error (such as ionospheric delay, tropospheric delay, etc.), satellite clock error, and other factors, making it difficult to accurately obtain the position information of the tower, thereby affecting the accuracy of the inclination calculation. SUMMARY
[0003] In view of the deficiencies in the prior art, the purpose of the present application is to provide an electric power tower inclination detection system.
[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: An electric power tower inclination detection system, comprising: GNSS antenna receives satellite signals and transmits them to the GNSS board card, and the GNSS board card processes the satellite signals to obtain single-point positioning raw data of the electric power tower; The single-point positioning raw data is sent to the server, and the positioning data is optimized by the server's ground enhancement service to obtain the positioning data; The positioning data is processed and analyzed to obtain the final inclination angle of the electric power tower; The final inclination angle and the positioning data are sent to the designated server, and the inclination angle data and the positioning data are obtained from the server by calling the API, and the inclination angle and the positioning information of the electric power tower in the specified area are displayed on the map.
[0005] Preferably, the GNSS board card processes the satellite signals to obtain single-point positioning raw data of the electric power tower, which specifically includes the following steps: The satellite signals received by the GNSS board are acquired in real time. The adaptive signal denoising unit is used to suppress interference in the acquired satellite signals. The adaptive signal denoising unit generates a reverse cancellation signal by dynamically identifying the environmental interference characteristics of the satellite signal frequency band to cancel the signal distortion caused by electromagnetic interference, multipath reflection interference and atmospheric scattering interference. The carrier phase ambiguity is solved and the pseudorange measurement value is corrected by the joint unwrapping algorithm of carrier phase and pseudorange signal to obtain carrier phase data and pseudorange data. Combined with the real-time parsing module built into the GNSS board, satellite orbit parameters, clock difference information and signal propagation path related data are extracted from the satellite signals to obtain ephemeris related data. The single-station positioning solution model based on spatiotemporal reference calibration fuses carrier phase data, pseudorange data, and ephemeris-related data to compensate in real time for ionospheric delay, tropospheric delay, and positioning deviation caused by Earth's rotation during satellite signal propagation, generating raw single-point positioning data that reflects the current spatial location of the power pole.
[0006] Preferably, the final tilt angle of the power pole is obtained by processing and analyzing the positioning data, specifically including the following steps: Based on the location data, the meteorological interference parameters of the power pole tower and the soil consolidation parameters of the tower foundation are obtained; The meteorological influence coefficient between meteorological interference parameters and tilt angle deviation is extracted from historical detection data. The meteorological interference tilt angle value of the power pole is obtained based on the meteorological influence coefficient and the meteorological interference parameters to be measured. The consolidation influence coefficient between soil consolidation parameters and inclination deviation was extracted based on historical monitoring data. If no instantaneous impact load is detected on the power pole, the initial tilt angle of the power pole is compensated based on the consolidation influence coefficient, soil consolidation parameters, and meteorological disturbance tilt angle to obtain the first actual detected tilt angle. If an instantaneous impact load is detected on the power pole, the deformation offset parameter of the power pole due to the impact load is obtained based on the peak load and the direction of the impact load at the location of the impact load on the power pole. The initial tilt angle of the power pole is compensated by combining the deformation offset parameter, soil consolidation parameter, consolidation influence coefficient and meteorological interference tilt angle value to obtain the second actual detected tilt angle. The combination of the first actual detected tilt angle and the second actual detected tilt angle constitutes the final tilt angle of the power pole.
[0007] Preferably, it further includes: An initial tilt angle detection value was obtained by using a multi-point tilt angle acquisition device to collect tilt angle data at the waist of the power pole, the bottom foundation, and the top crossarm.
[0008] Preferably, the meteorological interference parameters include wind speed, temperature difference, and rainfall intensity in the area where the power pole is located; The soil consolidation parameters include the compaction degree, moisture content, and degree of consolidation of the soil at the power pole.
[0009] Preferably, the meteorological influence coefficient between the meteorological interference parameters and the tilt angle deviation is extracted based on historical detection data, and the meteorological interference tilt angle value of the power pole is obtained based on the meteorological influence coefficient and the meteorological interference parameters to be measured. Specifically, this includes the following steps: Meteorological interference parameters that exceed the anti-interference threshold are marked as historical abnormal meteorological values from historical monitoring data; The difference between historical abnormal meteorological values and the anti-interference threshold is used to obtain the meteorological interference deviation. The historical tilt angle deviation values of the historical monitoring towers corresponding to the meteorological interference deviation were extracted from the historical monitoring data. The meteorological influence coefficient is obtained by comparing the historical tilt deviation value with the meteorological disturbance deviation value. The current meteorological deviation value is obtained by calculating the difference between the meteorological interference parameter to be measured and the anti-interference threshold. The meteorological interference tilt angle of the power pole is obtained by combining the meteorological influence coefficient and the current meteorological deviation value.
[0010] Preferably, the initial tilt angle of the power pole is compensated based on the consolidation influence coefficient, soil consolidation parameters, and meteorological disturbance tilt angle to obtain the first actual tilt angle. This process specifically includes the following steps: Historical consolidation parameters of the foundation soil of historically tested towers were extracted from historical monitoring data, as well as the historical consolidation tilt angle deviation values of the historically tested towers under the corresponding consolidation parameters. The consolidation influence coefficient is obtained by comparing the historical consolidation tilt angle deviation value with the historical consolidation parameters. The consolidation inclination angle of the power pole was obtained by combining the consolidation influence coefficient and soil consolidation parameters; The first actual detected tilt angle is obtained by tilt compensation of the initial tilt angle detection value based on the meteorological disturbance tilt angle value and the consolidation tilt angle value.
[0011] Preferably, the deformation offset parameters of the power pole tower caused by the impact load are obtained based on the peak load at the location of the impact load and the direction of the load. This specifically includes the following steps: The peak load at the location of the impact load is detected, and the angle between the load direction and the tower axis is determined by a three-dimensional attitude sensor to obtain the load angle. The deformation and displacement parameters of the power pole under impact load are obtained based on the peak load, the load application angle, and the pole material strength parameters.
[0012] Preferably, the initial tilt angle of the power pole is compensated by combining deformation offset parameters, soil consolidation parameters, consolidation influence coefficient, and meteorological interference tilt angle value to obtain the second actual detected tilt angle. This specifically includes the following steps: The historical deformation offset parameters of the historical test towers under different impact loads are extracted from the historical test data, as well as the historical impact tilt angle deviation values of the historical test towers under the corresponding historical deformation offset parameters. The impact deformation influence factor is obtained by comparing the historical impact tilt angle deviation value with the historical deformation offset parameter. The additional tilt angle deviation value of the power pole tower caused by the impact load is obtained by combining the impact deformation influence factor and the deformation offset parameter. The combined tilt correction value is obtained by adding the additional tilt deviation value, the meteorological disturbance tilt value, and the consolidation tilt value corresponding to the consolidation influence coefficient. The second actual detected tilt angle is obtained by combining the comprehensive tilt angle correction value with the initial tilt angle detection value for tilt angle compensation.
[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes GNSS antennas and circuit boards to process satellite signals during the data acquisition and processing phase, enabling the acquisition of raw single-point positioning data for power poles. This lays a high-precision foundation for subsequent positioning optimization and tilt angle calculation, ensuring the accuracy of the data source. Secondly, by sending the raw single-point positioning data to a server and optimizing the positioning data with the help of ground augmentation services, positioning accuracy is significantly improved. This results in more accurate and reliable calculated pole tilt angles, facilitating the timely detection of minor tilt changes and providing high-precision data support for the safety monitoring of power poles. Processing and analyzing the positioning data to obtain the tilt angle enables a quantitative assessment of the pole tilt status. Compared to traditional manual inspection methods, this significantly improves efficiency and allows for all-weather, automated monitoring, reducing labor costs and inspection difficulty. Finally, the tilt angle and positioning data are sent to a designated server and displayed on a map, achieving visualized data management. This allows maintenance personnel to intuitively and comprehensively grasp the tilt status and location information of all power poles within a designated area, enabling timely measures to be taken for poles with potential safety hazards. This effectively ensures the stable operation of the power system and improves the overall efficiency and safety of power pole maintenance. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a power pole tilt angle detection system proposed in this invention. Detailed Implementation
[0015] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0016] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.
[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.
[0018] Reference Figure 1 As shown.
[0019] The embodiments further illustrate the power pole tilt angle detection system proposed in this invention.
[0020] A power pole tilt angle detection system, comprising: The satellite signal is received by the GNSS antenna and transmitted to the GNSS board. The GNSS board then processes the satellite signal to obtain the raw data for the single-point positioning of the power pole. The raw point positioning data is sent to the server, and the server's ground augmentation service is used to optimize and process the positioning data to obtain the final positioning data. The tilt angle of the power pole is obtained by processing and analyzing the positioning data; The tilt angle and positioning data are sent to a designated server. The tilt angle and positioning data are retrieved from the server by calling the API. The tilt angle and positioning information of the power poles in the designated area are then displayed on the map.
[0021] The calculated tilt angle data and high-precision positioning data of the power poles are sent to a designated server for storage via a communication module. The front-end webpage retrieves the corresponding tilt angle and positioning data from the server by calling the application programming interface (API) provided by the server. Leveraging the integration capabilities of map services (such as Baidu Maps), this data is displayed intuitively on a map, allowing users to clearly view the tilt angle and specific positioning information of each power pole within a designated area, thereby achieving visualized management and monitoring of the power pole tilt status.
[0022] The raw data for single-point positioning of power poles is obtained by processing satellite signals using a GNSS board. The specific steps include: The satellite signals received by the GNSS board are acquired in real time. The adaptive signal denoising unit is used to suppress interference in the acquired satellite signals. The adaptive signal denoising unit generates a reverse cancellation signal by dynamically identifying the environmental interference characteristics of the satellite signal frequency band to cancel the signal distortion caused by electromagnetic interference, multipath reflection interference and atmospheric scattering interference. The carrier phase ambiguity is solved and the pseudorange measurement value is corrected by the joint unwrapping algorithm of carrier phase and pseudorange signal to obtain carrier phase data and pseudorange data. Combined with the real-time parsing module built into the GNSS board, satellite orbit parameters, clock difference information and signal propagation path related data are extracted from the satellite signals to obtain ephemeris related data. The single-station positioning solution model based on spatiotemporal reference calibration fuses carrier phase data, pseudorange data, and ephemeris-related data to compensate in real time for ionospheric delay, tropospheric delay, and positioning deviation caused by Earth's rotation during satellite signal propagation, generating raw single-point positioning data that reflects the current spatial location of the power pole.
[0023] The satellite signals received by the GNSS board are acquired in real time to ensure timely capture of satellite transmission signals. An adaptive signal denoising unit is used to suppress interference in the acquired satellite signals. The core working principle of this unit is to dynamically identify environmental interference characteristics within the satellite signal frequency band, such as electromagnetic interference, multipath reflection interference, and atmospheric scattering interference. Then, a reverse cancellation signal is generated to cancel the signal distortion caused by the aforementioned interference, thereby purifying the satellite signal. The denoised satellite signal is processed using a joint unwrapping algorithm of carrier phase and pseudorange signals. This algorithm resolves carrier phase ambiguity and corrects pseudorange measurements, thus obtaining carrier phase data and pseudorange data. Combined with the GNSS board's built-in real-time analysis module, satellite orbit parameters, clock bias information, and signal propagation path related data are extracted from the satellite signals. These data constitute ephemeris-related data. The single-station positioning solution model based on spatiotemporal reference calibration fuses carrier phase data, pseudorange data, and ephemeris-related data. During the calculation process, it compensates in real time for the positioning deviation caused by ionospheric delay, tropospheric delay, and Earth's rotation during satellite signal propagation. Finally, it generates single-point positioning raw data that reflects the current spatial position of the power pole, providing basic positioning information for subsequent operations such as tilt angle calculation.
[0024] The final tilt angle of the power pole is obtained by processing and analyzing the positioning data, specifically including the following steps: Based on the location data, the meteorological interference parameters of the power pole tower and the soil consolidation parameters of the tower foundation are obtained; The meteorological influence coefficient between meteorological interference parameters and tilt angle deviation is extracted from historical detection data. The meteorological interference tilt angle value of the power pole is obtained based on the meteorological influence coefficient and the meteorological interference parameters to be measured. The consolidation influence coefficient between soil consolidation parameters and inclination deviation was extracted based on historical monitoring data. If no instantaneous impact load is detected on the power pole, the initial tilt angle of the power pole is compensated based on the consolidation influence coefficient, soil consolidation parameters, and meteorological disturbance tilt angle to obtain the first actual detected tilt angle. If an instantaneous impact load is detected on the power pole, the deformation offset parameter of the power pole due to the impact load is obtained based on the peak load and the direction of the impact load at the location of the impact load on the power pole. The initial tilt angle of the power pole is compensated by combining the deformation offset parameter, soil consolidation parameter, consolidation influence coefficient and meteorological interference tilt angle value to obtain the second actual detected tilt angle. The combination of the first and second actual detected tilt angles represents the final tilt angle of the power pole.
[0025] Also includes: An initial tilt angle detection value was obtained by using a multi-point tilt angle acquisition device to collect tilt angle data at the waist of the power pole, the bottom foundation, and the top crossarm.
[0026] Data was collected from three different parts of the power pole: the waist of the tower body, the bottom foundation, and the top crossarm. The waist of the tower body, located in the middle region, is a crucial link in the transmission of stress. For example, when the tower is subjected to lateral wind forces, the deformation and tilt changes in the waist directly reflect the overall stress state of the tower. The data acquisition module deployed here can capture the tilt amplitude of the waist in real time, avoiding localized biases caused by data collection from a single location. The bottom foundation is the supporting structure of the tower. Soil settlement and foundation loosening issues will first manifest in changes in the tilt angle at the bottom. For example, when the soil moisture content at the foundation is too high, leading to a decrease in consolidation, the tilt angle of the bottom foundation will show a slight shift. By collecting data at this location, potential problems at the foundation level can be detected early. The top crossarm typically carries equipment such as conductors. The weight distribution of the equipment and changes in conductor tension will affect the tilt angle of the top crossarm. For instance, when the tension of a conductor increases due to increased load, the tilt angle of the top crossarm will shift in the direction of the conductor tension. Collecting data at this location can supplement the stress and tilt information of the upper part of the tower.
[0027] By simultaneously collecting tilt angle data from these three locations, the multi-point tilt angle acquisition device can integrate tilt information from multiple dimensions and ultimately obtain an initial tilt angle detection value that is closer to the actual state of the tower, providing comprehensive basic data support for subsequent tilt angle compensation based on factors such as meteorology and soil.
[0028] Meteorological disturbance parameters include wind speed, temperature difference, and rainfall intensity in the area where the power poles are located; Soil consolidation parameters include the compaction degree, moisture content, and degree of consolidation of the soil at the power pole.
[0029] Meteorological interference parameters include wind speed, temperature difference, and rainfall intensity in the area where the power poles are located. Wind speed directly exerts a lateral force on the poles. For example, when strong winds occur in the area, the strong wind speed will push the poles to tilt in the direction of the wind. The greater the wind speed, the more obvious the tilt usually is. Temperature difference affects the physical state of the pole materials. For example, under high or low temperature environments, the metal components of the poles may undergo thermal expansion and contraction deformation, which will cause slight changes in the tilt angle of the poles. Continuous heavy rainfall will penetrate the soil, change the stress environment of the pole foundation, and may also increase the humidity and weight of the pole surface, indirectly affecting the tilt state of the poles.
[0030] Soil consolidation parameters encompass the compaction, moisture content, and degree of consolidation of the soil at the power pole tower location. Compaction represents the density of the soil. Insufficient soil compaction reduces the support stability of the tower foundation. For example, if the soil around the foundation is not properly compacted during construction, the foundation is prone to settlement under subsequent stress, leading to tilting deviation. Moisture content is the proportion of water in the soil. When the moisture content is too high, the soil's bearing capacity weakens. For instance, after continuous rainfall, the soil moisture content increases, causing the foundation to tilt slightly due to the loose soil. Degree of consolidation refers to the degree of soil consolidation under pressure. The lower the degree of consolidation, the stronger the soil's deformability. For example, insufficient consolidation of newly filled foundation soil will cause the tower to slowly tilt due to compression deformation under long-term stress.
[0031] By combining the actual data of these parameters with the corresponding tilt angle influence patterns in historical tests, the tilt angle deviation caused by these factors can be calculated, thereby compensating for the initial tilt angle value so that the final tower tilt angle is more in line with the actual situation.
[0032] The meteorological influence coefficient between meteorological interference parameters and tilt angle deviation is extracted based on historical monitoring data. The meteorological interference tilt angle value of the power pole is then obtained based on the meteorological influence coefficient and the meteorological interference parameters to be measured. The specific steps include: Meteorological interference parameters that exceed the anti-interference threshold are marked as historical abnormal meteorological values from historical monitoring data; The difference between historical abnormal meteorological values and the anti-interference threshold is used to obtain the meteorological interference deviation. The historical tilt angle deviation values of the historical monitoring towers corresponding to the meteorological interference deviation were extracted from the historical monitoring data. The meteorological influence coefficient is obtained by comparing the historical tilt deviation value with the meteorological disturbance deviation value. The current meteorological deviation value is obtained by calculating the difference between the meteorological interference parameter to be measured and the anti-interference threshold. The meteorological interference tilt angle of the power pole is obtained by combining the meteorological influence coefficient and the current meteorological deviation value.
[0033] Values exceeding the anti-interference threshold are marked as historical abnormal meteorological values. The anti-interference threshold here refers to the critical value at which meteorological parameters will not have a significant impact on the tower tilt angle. For example, assuming the anti-interference threshold for wind speed in a certain area is 10 meters per second, then wind speed data exceeding 10 meters per second in historical data are marked as historical abnormal meteorological values.
[0034] The meteorological interference deviation is calculated by subtracting the anti-interference threshold from the historical abnormal meteorological value. For example, if a historical abnormal wind speed is 15 meters per second, the corresponding meteorological interference deviation is 5 meters per second after subtracting the anti-interference threshold of 10 meters per second.
[0035] Locate the historical monitoring tower corresponding to this meteorological disturbance deviation from historical monitoring data, and extract the historical tilt angle deviation value of that tower at that time. For example, when the wind speed deviation is 5 meters per second, the corresponding historical tower tilt angle is 0.2 degrees off from the normal state, then the historical tilt angle deviation value is 0.2 degrees.
[0036] The meteorological influence coefficient is obtained by comparing the historical tilt deviation value with the corresponding meteorological disturbance deviation. For example, dividing the historical tilt deviation value of 0.2 degrees by the meteorological disturbance deviation value of 5 meters per second yields a meteorological influence coefficient of 0.04 degrees per meter per second. The meteorological influence coefficient represents the degree of tilt deviation corresponding to a unit of meteorological deviation.
[0037] When it is necessary to detect meteorological interference on the current tower, the difference between the current meteorological interference parameter to be measured and the anti-interference threshold is first calculated to obtain the current meteorological deviation value. For example, if the current actual wind speed is 12 meters per second, subtracting the anti-interference threshold of 10 meters per second, the current meteorological deviation value is 2 meters per second.
[0038] The meteorological influence coefficient and the current meteorological deviation value are combined to obtain the current meteorological interference tilt angle value of the power pole. For example, multiplying the meteorological influence coefficient of 0.04 degrees per meter per second by the current meteorological deviation value of 2 meters per second yields a meteorological interference tilt angle value of 0.08 degrees. The meteorological interference tilt angle value is the amount of interference to the pole tilt angle under the current meteorological conditions.
[0039] The initial tilt angle of the power pole is compensated based on the consolidation influence coefficient, soil consolidation parameters, and meteorological disturbance tilt angle to obtain the first actual tilt angle. The specific steps include: Historical consolidation parameters of the foundation soil of historically tested towers were extracted from historical monitoring data, as well as the historical consolidation tilt angle deviation values of the historically tested towers under the corresponding consolidation parameters. The consolidation influence coefficient is obtained by comparing the historical consolidation tilt angle deviation value with the historical consolidation parameters. The consolidation inclination angle of the power pole was obtained by combining the consolidation influence coefficient and soil consolidation parameters; The first actual detected tilt angle is obtained by tilt compensation of the initial tilt angle detection value based on the meteorological disturbance tilt angle value and the consolidation tilt angle value.
[0040] Historical consolidation parameters corresponding to the foundation soil of historically inspected towers are extracted from historical monitoring data. Simultaneously, the historical consolidation tilt angle deviation values of the towers under these consolidation parameters are extracted. Soil consolidation parameters include soil compaction degree, moisture content, and degree of consolidation. For example, if the soil compaction degree of a historical tower foundation is 90%, the moisture content is 20%, and the degree of consolidation is 85%, the corresponding tilt angle of the tower at that time was 0.15 degrees deviated from its normal state, and the historical consolidation tilt angle deviation value is 0.15 degrees.
[0041] The consolidation influence coefficient is obtained by comparing the historical consolidation tilt angle deviation with the corresponding historical consolidation parameters. The consolidation influence coefficient represents the degree of tower tilt angle deviation corresponding to a unit change in soil consolidation parameters.
[0042] By combining this consolidation influence coefficient with the actual consolidation parameters of the soil in the foundation of the power pole under test, the current consolidation tilt angle of the pole can be calculated. For example, if the comprehensive value of the current consolidation parameter of the foundation soil is 2.5, multiplying the consolidation influence coefficient (0.05 degrees per unit of consolidation parameter) by 2.5 yields a consolidation tilt angle of 0.125 degrees. The consolidation tilt angle represents the amount of interference caused by the current soil consolidation state on the pole tilt angle.
[0043] The initial tilt angle is compensated based on the meteorological disturbance tilt angle and the consolidation tilt angle to obtain the first actual tilt angle. For example, if the initial tilt angle is 0.8 degrees, the meteorological disturbance tilt angle is 0.08 degrees, and the consolidation tilt angle is 0.125 degrees, then these two disturbance values are subtracted from the initial tilt angle: 0.8 minus 0.08 and then subtracting 0.125, resulting in a first actual tilt angle of 0.595 degrees. This value is closer to the actual tilt state of the tower after eliminating meteorological and soil consolidation disturbances.
[0044] The deformation offset parameters of the power pole are obtained based on the peak load and direction of the impact load at the location of the impact load on the power pole. The specific steps include: The peak load at the location of the impact load is detected, and the angle between the load direction and the tower axis is determined by a three-dimensional attitude sensor to obtain the load angle. The deformation and displacement parameters of the power pole under impact load are obtained based on the peak load, the load application angle, and the pole material strength parameters.
[0045] The system detects the peak load of the impact load acting on the tower, which is the maximum force reached when the impact load is applied. For example, when a strong wind carries a foreign object and impacts the tower, or when an external force device collides with the tower, the equipment captures the maximum impact force, assuming the peak load is 5000 Newtons. A three-dimensional attitude sensor is used to determine the angle between the load direction and the tower axis; this angle is the load application angle. For example, if the foreign object impacts the tower from the side and above, forming a 30-degree angle with the tower's vertical axis, then the load application angle is 30 degrees.
[0046] The deformation and displacement parameters of power poles under impact loads are calculated by combining the detected peak load, load application angle, and the material strength parameters of the pole. These material strength parameters refer to the compressive and bending mechanical properties of the metal or composite material used in the pole, such as a bending strength parameter of 200 MPa for a certain pole material. When the peak load, application angle, and material strength parameters are combined, the degree of deformation caused by the impact load on the pole structure can be determined. For example, if a 5000 N load is applied at a 30-degree angle to a pole with a bending strength of 200 MPa, the deformation and displacement parameter calculated through mechanical analysis is 0.03 meters. This value represents the degree of structural displacement of the pole under this impact load.
[0047] The initial tilt angle of the power pole is compensated by combining deformation offset parameters, soil consolidation parameters, consolidation influence coefficient, and meteorological disturbance tilt angle value to obtain the second actual tilt angle. The specific steps include: The historical deformation offset parameters of the historical test towers under different impact loads are extracted from the historical test data, as well as the historical impact tilt angle deviation values of the historical test towers under the corresponding historical deformation offset parameters. The impact deformation influence factor is obtained by comparing the historical impact tilt angle deviation value with the historical deformation offset parameter. The additional tilt angle deviation value of the power pole tower caused by the impact load is obtained by combining the impact deformation influence factor and the deformation offset parameter. The combined tilt correction value is obtained by adding the additional tilt deviation value, the meteorological disturbance tilt value, and the consolidation tilt value corresponding to the consolidation influence coefficient. The second actual detected tilt angle is obtained by combining the comprehensive tilt angle correction value with the initial tilt angle detection value for tilt angle compensation.
[0048] Historical deformation offset parameters corresponding to historically tested towers under different impact loads are extracted from historical monitoring data. Simultaneously, the historical impact tilt angle deviation values of the tower under these deformation parameters are also extracted. For example, if a historical tower was subjected to an impact load, and the corresponding historical deformation offset parameter is 0.03 meters, then the tower's tilt angle deviated by 0.2 degrees compared to its normal state, and the historical impact tilt angle deviation value is 0.2 degrees.
[0049] The impact deformation influence factor is obtained by comparing the historical impact tilt angle deviation value with the corresponding historical deformation offset parameter. For example, dividing the historical impact tilt angle deviation value of 0.2 degrees by the historical deformation offset parameter of 0.03 meters yields an impact deformation influence factor of approximately 6.67 degrees per meter. This factor represents the degree of tilt angle deviation corresponding to a unit deformation offset parameter.
[0050] The additional tilt angle deviation caused by the impact load on the current tower is calculated by combining the impact deformation influence factor and the deformation offset parameter of the tower under test. For example, if the deformation offset parameter of the current tower is 0.02 meters, multiplying the impact deformation influence factor of 6.67 degrees per meter by 0.02 meters yields an additional tilt angle deviation of 0.1334 degrees. This value represents the disturbance caused by the impact load alone to the tower tilt angle.
[0051] The additional dip deviation value is added to the meteorological disturbance dip value and the consolidation dip value to obtain the comprehensive dip correction value. For example, if the meteorological disturbance dip value is 0.08 degrees, the consolidation dip value is 0.125 degrees, and the additional dip deviation value is 0.1334 degrees, the comprehensive dip correction value obtained by adding the three is 0.08 + 0.125 + 0.1334 = 0.3384 degrees.
[0052] The initial tilt angle detection value is compensated by combining the comprehensive tilt angle correction value to obtain the second actual tilt angle. For example, if the initial tilt angle detection value is 0.9 degrees, the comprehensive tilt angle correction value of 0.3384 degrees is subtracted from 0.9 degrees, and the second actual tilt angle is 0.5616 degrees.
[0053] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0054] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.
[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A power pole tilt angle detection system, characterized in that, include: The satellite signal is received by the GNSS antenna and transmitted to the GNSS board. The GNSS board then processes the satellite signal to obtain the raw data for the single-point positioning of the power pole. The raw point positioning data is sent to the server, and the server's ground augmentation service is used to optimize and process the positioning data to obtain the final positioning data. The final tilt angle of the power pole is obtained by processing and analyzing the positioning data; The final tilt angle and positioning data are sent to the designated server. The tilt angle and positioning data are obtained from the server by calling the API, and the tilt angle and positioning information of the power poles in the designated area are displayed on the map.
2. The power pole tilt angle detection system according to claim 1, characterized in that, The raw data for single-point positioning of power poles is obtained by processing satellite signals using a GNSS board. The specific steps include: The satellite signals received by the GNSS board are acquired in real time. The adaptive signal denoising unit is used to suppress interference in the acquired satellite signals. The adaptive signal denoising unit generates a reverse cancellation signal by dynamically identifying the environmental interference characteristics of the satellite signal frequency band to cancel the signal distortion caused by electromagnetic interference, multipath reflection interference and atmospheric scattering interference. The carrier phase ambiguity is solved and the pseudorange measurement value is corrected by the joint unwrapping algorithm of carrier phase and pseudorange signal to obtain carrier phase data and pseudorange data. Combined with the real-time parsing module built into the GNSS board, satellite orbit parameters, clock difference information and signal propagation path related data are extracted from the satellite signals to obtain ephemeris related data. The single-station positioning solution model based on spatiotemporal reference calibration fuses carrier phase data, pseudorange data, and ephemeris-related data to compensate in real time for ionospheric delay, tropospheric delay, and positioning deviation caused by Earth's rotation during satellite signal propagation, generating raw single-point positioning data that reflects the current spatial location of the power pole.
3. The power pole tilt angle detection system according to claim 2, characterized in that, The final tilt angle of the power pole is obtained by processing and analyzing the positioning data, specifically including the following steps: Based on the location data, the meteorological interference parameters of the power pole tower and the soil consolidation parameters of the tower foundation are obtained; The meteorological influence coefficient between meteorological interference parameters and tilt angle deviation is extracted from historical detection data. The meteorological interference tilt angle value of the power pole is obtained based on the meteorological influence coefficient and the meteorological interference parameters to be measured. The consolidation influence coefficient between soil consolidation parameters and inclination deviation was extracted based on historical monitoring data. If no instantaneous impact load is detected on the power pole, the initial tilt angle of the power pole is compensated based on the consolidation influence coefficient, soil consolidation parameters, and meteorological disturbance tilt angle to obtain the first actual detected tilt angle. If an instantaneous impact load is detected on the power pole, the deformation offset parameter of the power pole due to the impact load is obtained based on the peak load and the direction of the impact load at the location of the impact load on the power pole. The initial tilt angle of the power pole is compensated by combining the deformation offset parameter, soil consolidation parameter, consolidation influence coefficient and meteorological interference tilt angle value to obtain the second actual detected tilt angle. The combination of the first actual detected tilt angle and the second actual detected tilt angle constitutes the final tilt angle of the power pole.
4. The power pole tilt angle detection system according to claim 3, characterized in that, Also includes: An initial tilt angle detection value was obtained by using a multi-point tilt angle acquisition device to collect tilt angle data at the waist of the power pole, the bottom foundation, and the top crossarm.
5. The power pole tilt angle detection system according to claim 4, characterized in that, The meteorological interference parameters include wind speed, temperature difference, and rainfall intensity in the area where the power poles are located. The soil consolidation parameters include the compaction degree, moisture content, and degree of consolidation of the soil at the power pole.
6. The power pole tilt angle detection system according to claim 5, characterized in that, The meteorological influence coefficient between meteorological interference parameters and tilt angle deviation is extracted based on historical monitoring data. The meteorological interference tilt angle value of the power pole is then obtained based on the meteorological influence coefficient and the meteorological interference parameters to be measured. The specific steps include: Meteorological interference parameters that exceed the anti-interference threshold are marked as historical abnormal meteorological values from historical monitoring data; The difference between historical abnormal meteorological values and the anti-interference threshold is used to obtain the meteorological interference deviation. The historical tilt angle deviation values of the historical monitoring towers corresponding to the meteorological interference deviation were extracted from the historical monitoring data. The meteorological influence coefficient is obtained by comparing the historical tilt deviation value with the meteorological disturbance deviation value. The current meteorological deviation value is obtained by calculating the difference between the meteorological interference parameter to be measured and the anti-interference threshold. The meteorological interference tilt angle of the power pole is obtained by combining the meteorological influence coefficient and the current meteorological deviation value.
7. The power pole tilt angle detection system according to claim 6, characterized in that, The initial tilt angle of the power pole is compensated based on the consolidation influence coefficient, soil consolidation parameters, and meteorological disturbance tilt angle to obtain the first actual tilt angle. The specific steps include: Historical consolidation parameters of the foundation soil of historically tested towers were extracted from historical monitoring data, as well as the historical consolidation tilt angle deviation values of the historically tested towers under the corresponding consolidation parameters. The consolidation influence coefficient is obtained by comparing the historical consolidation tilt angle deviation value with the historical consolidation parameters. The consolidation inclination angle of the power pole was obtained by combining the consolidation influence coefficient and soil consolidation parameters; The first actual detected tilt angle is obtained by tilt compensation of the initial tilt angle detection value based on the meteorological disturbance tilt angle value and the consolidation tilt angle value.
8. The power pole tilt angle detection system according to claim 7, characterized in that, The deformation offset parameters of the power pole are obtained based on the peak load and direction of the impact load at the location of the impact load on the power pole. The specific steps include: The peak load at the location of the impact load is detected, and the angle between the load direction and the tower axis is determined by a three-dimensional attitude sensor to obtain the load angle. The deformation and displacement parameters of the power pole under impact load are obtained based on the peak load, the load application angle, and the pole material strength parameters.
9. A power pole tilt angle detection system according to claim 8, characterized in that, The initial tilt angle of the power pole is compensated by combining deformation offset parameters, soil consolidation parameters, consolidation influence coefficient, and meteorological disturbance tilt angle value to obtain the second actual tilt angle. The specific steps include: The historical deformation offset parameters of the historical test towers under different impact loads are extracted from the historical test data, as well as the historical impact tilt angle deviation values of the historical test towers under the corresponding historical deformation offset parameters. The impact deformation influence factor is obtained by comparing the historical impact tilt angle deviation value with the historical deformation offset parameter. The additional tilt angle deviation value of the power pole tower caused by the impact load is obtained by combining the impact deformation influence factor and the deformation offset parameter. The combined tilt correction value is obtained by adding the additional tilt deviation value, the meteorological disturbance tilt value, and the consolidation tilt value corresponding to the consolidation influence coefficient. The second actual detected tilt angle is obtained by combining the comprehensive tilt angle correction value with the initial tilt angle detection value for tilt angle compensation.