Sep 1, 2026

US12724167 - System and method for UXO detection

A system and method for detecting unexploded ordnance (UXO) is disclosed. The system combines a customized Unmanned Aerial Vehicle (UAV) with a ground control station, and flies above terrain with centimeter precision using onboard LIDAR, SONAR, and RADAR sensors at altitudes as low as 20 cm. The system also provides several methods for mission planning including numerous Graphical User Interfaces (GUIs) for tablets and smartphones. The system provides obstacle avoidance and non-geometric area mapping. The data is fully compatible with numerous geophysical software formats and enables the UAV capable of precisely following real world terrain at distances as close as 20 cm, and is able to avoid obstacles in its flight path.

The patent describes a system and method for detecting unexploded ordnance (UXO) using a customized unmanned aerial vehicle (UAV) equipped with various sensors and a ground control station. It emphasizes precise mission planning and obstacle avoidance capabilities, enabling the UAV to operate effectively at low altitudes while gathering and processing UXO data.

Claim 1

1 . A method of structuring and configuring a system for detecting unexploded ordnance (UXO), comprising: configuring a ground control system (GCS) to work with a pre-configured unmanned aerial vehicle (UAV), the UAV comprising a flight controller, a metal detector, and a sensor hub; configuring a tablet with a mobile app loaded thereupon for facilitating human usage of the GCS; the GCS assisting a user in defining one or more land boundaries to be searched for UXO; the GCS controlling a flight plan of the UAV; all data-acquisition and data-management tasks performed by the UAV, including data and communications related to geographic data, flight plan, all terrain data obtained, and all UXO data obtained; and the GCS controlling the UAV using a specific predetermined methodology of obtaining UXO information available in the user-defined land-boundary; the mobile app providing GUIs for the user to plan UXO detection missions ahead of time either off-location or on-location; the mobile app providing a GUI to select a New Mission and facilitating entry of desired plurality of mission parameters; and configuring the plurality of mission parameters comprising sensor altitude over ground, and lane spacing; combining metal detector data with position data from the UAV at the time the reading was taken; factoring that both GPS receiver and metal detector have different delays from the point a measurement is taken until received at the GCS; a metal detector controller operating and updating the metal detector; configuring the metal detector controller with predetermined logic for interpreting the differing delays and aligning them; and fusing/combining the UXO and terrain data and combining position data with metal detector data; equipping the UAV with one or more stereo vision cameras for calculating a depth of field; the two cameras performing obstacle detection partly by forming a 3D image of what is in front of the UAV and conveying that information to an obstacle detection and avoidance module; the obstacle detection and avoidance module processing visual information; the obstacle detection and avoidance module sending data about obstacles to the GCS including how the UAV may avoid that obstacle; the GCS then directing a travel path of the UAV and the UAV not being self-directed; the obstacle detection and avoidance module utilizing information obtained from the sensor hub. configuring a ground control system (GCS) to work with a pre-configured unmanned aerial vehicle (UAV), the UAV comprising a flight controller, a metal detector, and a sensor hub; configuring a tablet with a mobile app loaded thereupon for facilitating human usage of the GCS; the GCS assisting a user in defining one or more land boundaries to be searched for UXO; the GCS controlling a flight plan of the UAV; all data-acquisition and data-management tasks performed by the UAV, including data and communications related to geographic data, flight plan, all terrain data obtained, and all UXO data obtained; and the GCS controlling the UAV using a specific predetermined methodology of obtaining UXO information available in the user-defined land-boundary; a flight plan of the UAV; all data-acquisition and data-management tasks performed by the UAV, including data and communications related to geographic data, flight plan, all terrain data obtained, and all UXO data obtained; and the GCS controlling the UAV using a specific predetermined methodology of obtaining UXO information available in the user-defined land-boundary; the mobile app providing GUIs for the user to plan UXO detection missions ahead of time either off-location or on-location; the mobile app providing a GUI to select a New Mission and facilitating entry of desired plurality of mission parameters; and configuring the plurality of mission parameters comprising sensor altitude over ground, and lane spacing; combining metal detector data with position data from the UAV at the time the reading was taken; factoring that both GPS receiver and metal detector have different delays from the point a measurement is taken until received at the GCS; a metal detector controller operating and updating the metal detector; configuring the metal detector controller with predetermined logic for interpreting the differing delays and aligning them; and fusing/combining the UXO and terrain data and combining position data with metal detector data; equipping the UAV with one or more stereo vision cameras for calculating a depth of field; the two cameras performing obstacle detection partly by forming a 3D image of what is in front of the UAV and conveying that information to an obstacle detection and avoidance module; the obstacle detection and avoidance module processing visual information; the obstacle detection and avoidance module sending data about obstacles to the GCS including how the UAV may avoid that obstacle; the GCS then directing a travel path of the UAV and the UAV not being self-directed; the obstacle detection and avoidance module utilizing information obtained from the sensor hub.

Google Patents

https://patents.google.com/patent/US12724167

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12724167

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