Operation safety distance management method based on laser radar point cloud data

Through the multimodal data fusion of three-dimensional lidar and nine-axis sensors, combined with point cloud processing and trajectory prediction, the problems of target recognition errors and delayed safety distance judgment caused by equipment posture changes in existing hazard source monitoring systems are solved, achieving high-precision, real-time safety distance management and improving the safety of industrial environments.

CN120703773APending Publication Date: 2025-09-26内蒙古科安数图科技有限公司
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Patent Information

Application Number
CN202511006574.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2025-09-26

AI Technical Summary

Technical Problem

The existing hazard source monitoring system is prone to mismatch in point cloud models when the equipment posture changes, resulting in target recognition errors and distance calculation deviations. It lacks an effective compensation mechanism for equipment posture changes, fails to fully utilize the temporal and spatial information of three-dimensional point cloud data, lacks prediction of target movement trends, and has a delayed safety distance judgment and a high false alarm rate.

Method used

By introducing a multimodal data fusion mechanism of three-dimensional lidar and nine-axis sensor, combined with point cloud processing algorithm and trajectory prediction method, an initial three-dimensional point cloud model is generated, point cloud registration and dynamic target recognition are performed, the motion trajectory is predicted, the dynamic safety distance threshold is determined, and the alarm mechanism is triggered.

Benefits of technology

It achieves high-precision, real-time, and intelligent monitoring of the behavior of people or objects approaching dangerous sources in industrial environments, reduces the false alarm rate, improves the effectiveness and response speed of safety management, and ensures the safety of the work site.

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Abstract

The invention relates to the technical field of safety monitoring, and particularly discloses an operation safety distance management method based on laser radar point cloud data, and the method comprises the steps: generating a dangerous point cloud set based on an initial three-dimensional point cloud model of a complete field environment; performing coordinate transformation on the point cloud data currently collected by the three-dimensional laser radar equipment based on the rigid body transformation matrix to obtain current point cloud data; registering the current point cloud data with the initial three-dimensional point cloud model and identifying all independent dynamic targets; determining a danger approaching trend of each independent dynamic target based on the motion prediction trajectory of each independent dynamic target; determining a dynamic safety distance threshold value of each dangerous dynamic target based on the danger approaching trend and the response delay of each independent dynamic target and the additional safety distance of the corresponding dangerous source area; triggering a corresponding alarm mechanism based on the dynamic safety distance threshold and the distance between the point cloud set of each independent dynamic target and the dangerous point cloud set; and the overall safety of a working site is improved.
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