Power transmission line detection imaging method and system
By acquiring photon distribution histograms under both interference-free and interference-free environments and performing maximum likelihood estimation and filtering, the problem of low detection accuracy of single-photon lidar in complex environments is solved, and high-precision transmission line imaging is achieved.
Patent Information
- Application Number
- CN202610099414.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-26
- Publication Date
- 2026-05-12
AI Technical Summary
When existing single-photon lidars detect power lines in complex environments, the target signal is easily interfered with by noise, resulting in low detection accuracy.
A single-photon lidar was used to photograph the power line in an interference-free environment to obtain the first photon distribution histogram, and the peak time was calculated. In an interference-prone environment, the target reflection peak in the second photon distribution histogram was modeled and calibrated by maximum likelihood estimation. The Savitzky-Golay filter was combined to reduce noise and calculate the depth distance.
It improves the accuracy of power transmission line detection in complex environments, reduces the impact of scattering noise, and achieves high-precision target imaging and high robustness.