Transmission conductor icing monitoring and early warning method fusing Beidou and PolSAR

By integrating BeiDou and PolSAR technologies, high-precision monitoring and early warning of icing on transmission lines have been achieved, solving the problems of insufficient reliability of monitoring results and low prediction accuracy in existing technologies, and providing an all-weather, intelligent icing monitoring and early warning solution.

CN122362382APending Publication Date: 2026-07-10GUIZHOU ELECTRIC POWER DESIGN INST
3 Cites 1 Cited by

Patent Information

Application Number
CN202610481904.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-13
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing technologies, transmission line icing monitoring does not consider the impact of atmospheric delay on SAR phase and does not incorporate BeiDou data for joint correction and verification, resulting in insufficient reliability and accuracy of monitoring results and a lack of accurate prediction and early warning capabilities for icing growth trends.

Method used

The method integrates BeiDou and PolSAR, and by collecting PolSAR image data and BeiDou ground-based augmentation network data, atmospheric delay phase calculation and orbital error correction are performed. Combined with polarization decomposition and icing characteristic parameters, an icing thickness inversion model is established, and an icing growth prediction model is constructed to achieve all-day, all-weather icing monitoring and early warning.

Benefits of technology

It achieves high spatiotemporal resolution icing monitoring, improves monitoring and prediction accuracy, has all-weather monitoring capabilities, reduces construction and maintenance costs, provides intelligent early warning support, and is applicable to the disaster prevention and mitigation systems of power grid companies at all levels.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a transmission conductor icing monitoring and early warning method fusing Beidou and PolSAR. The method comprises the following steps: acquiring multi-source data, and synchronously acquiring and preprocessing the multi-source data; the method comprises the following steps: inverting atmospheric precipitable water with high temporal-spatial resolution by using Beidou CORS station data, and calculating a troposphere delay phase in combination with temperature and pressure data; meanwhile, the Beidou precise ephemeris is used for assisting in correcting the orbit error of the PolSAR image; extracting a characteristic parameter set closely related to the icing state; establishing an icing thickness inversion model fusing the corrected phase change and polarization characteristics; based on an icing thickness inversion result of a time sequence, combining near-real-time atmosphere temperature and humidity and numerical weather forecast data inverted by Beidou to construct an icing growth prediction model; starting icing early warning according to the real-time inversion thickness, the prediction thickness and the line design icing thickness; the problems that the prior art focuses on ice coating state identification and lacks the accurate prediction and early warning capability on the ice coating growth trend are solved.
Need to check novelty before this filing date? Find Prior Art