Virtual-fingerprint-based radiation source positioning method, device, equipment and storage medium
By constructing a virtual fingerprint database in outdoor scenarios and utilizing ray tracing and neural network technologies, the problem of high cost of virtual fingerprint positioning was solved, and accurate positioning of radiation sources in outdoor scenarios was achieved.
CN119107362BActive Publication Date: 2026-06-19WUHAN UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN UNIV
- Filing Date
- 2024-08-27
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
Virtual fingerprint positioning technology is too costly to be applied in outdoor scenarios.
Method used
By establishing a 3D model of the target area, dividing it into multiple grid points, determining the first set of points, and placing radiation sources at these points to construct a virtual fingerprint database, the virtual fingerprint data is obtained using a ray tracing algorithm, and the radiation sources are located by combining a Transformer encoder and a convolutional neural network.
Benefits of technology
It enables accurate radiation source localization in outdoor scenarios, reduces the cost of virtual fingerprint localization, and expands the application scope of virtual fingerprint technology.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119107362B_ABST
Abstract
A method, apparatus, device, and storage medium for radiation source localization based on virtual fingerprints are disclosed, belonging to the field of data processing technology. This method is used for radiation source localization in outdoor scenes. The method includes: establishing a 3D model of the target area based on 3D point cloud data; dividing the 3D model into multiple grid points in N-meter increments; determining a first set of points based on the multiple grid points, the first set of points including multiple points, each located on a different grid point, and all points located outside buildings; sequentially placing the radiation source among the multiple points in the first set of points to construct a virtual fingerprint database, the virtual fingerprint database including virtual fingerprint data of M receiving points when the radiation source is sequentially placed among the points in the first set of points; and locating the radiation source based on the virtual fingerprint database. This method enables the application of virtual fingerprint localization technology to outdoor scenes.
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