一种应用于机场自动驾驶牵引车的动态边界扩展的方法

By constructing an initial point cloud map in the airport autonomous driving system and performing real-time registration and difference region extraction, combined with multi-source data fusion and confidence verification, the problem of traditional systems being unable to adapt to dynamic obstacles is solved, achieving efficient dynamic environment response and resource optimization.

CN120778094BActive Publication Date: 2026-07-17CHENGDU TONGGUANG NETLINK TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU TONGGUANG NETLINK TECH CO LTD
Filing Date
2025-06-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional airport autonomous driving systems cannot adapt to dynamic obstacles in real time, have long map update cycles, insufficient perception capabilities of individual vehicles, and difficulty in distinguishing between temporary obstacles and permanent structures, leading to path planning errors.

Method used

An initial point cloud map is constructed using LiDAR SLAM, and the vehicle system performs real-time registration and difference region extraction. Combined with semantic camera verification, multi-source data fusion is performed using DS evidence theory to dynamically update the map. Temporary boundaries are verified using a sliding time window and confidence accumulation mechanism to generate dynamic obstacle boundaries.

Benefits of technology

It achieves sub-second response capability to dynamic airport environments, reduces map update latency from hours to minutes, lowers false alarm rate to 0.1%, reduces data transmission volume by 70%, and optimizes resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种应用于机场自动驾驶牵引车的动态边界扩展的方法,属于智能交通技术领域,包括初始点云地图构建:通过激光雷达SLAM技术生成机场点云地图;实时感知与对比:将当前点云与本地缓存的机场点云地图进行配准,并基于栅格地图进行差异区域提取;动态更新地图:接收多个车辆上报的差异区域,云服务器根据更新策略对机场点云地图进行动态更新。本发明通过时空维度双重验证、多模态数据融合、分层递进更新等创新设计,在保证厘米级定位精度的同时,实现了对机场动态环境的亚秒级响应能力,并通过滑动时间窗口与置信度累积机制,有效解决了单次感知误差可能引发的无效障碍物问题。
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