Uni-President Enterprises has been granted a patent for an unmanned airborne ground penetrating radar system and inspection method for dam hidden danger detection. The system includes an unmanned aerial vehicle (UAV) with a sensor platform, radar platform, forward-looking laser rangefinder, and ground penetrating radar. The radar system utilizes a variable polarization ground penetrating radar antenna array for improved detection capabilities. GlobalData’s report on Uni-President Enterprises gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Uni-President Enterprises, cancer treatment biomarkers was a key innovation area identified from patents. Uni-President Enterprises's grant share as of September 2023 was 59%. Grant share is based on the ratio of number of grants to total number of patents.
Unmanned airborne ground penetrating radar system for dam detection
A recently granted patent (Publication Number: US11774579B1) describes an unmanned airborne ground penetrating radar system for detecting hidden dangers in dams. The system consists of an unmanned aerial vehicle (UAV) equipped with a sensor platform, radar platform, forward-looking laser rangefinder, and ground penetrating radar. The sensor platform is mounted on the UAV, with the laser rangefinder installed on it, and the radar platform is positioned on one side of the sensor platform. The ground penetrating radar is installed on the radar platform and features a variable polarization antenna array.
The variable polarization ground penetrating radar antenna array includes a substrate and orthogonal dual-polarization Vivaldi antenna transmitting and receiving subarrays. These subarrays are mounted on the substrate, with each subarray comprising an orthogonal dual-polarization Vivaldi antenna array element. The array elements, along with a feed network, form a 2x2 antenna array for both transmitting and receiving signals. The antenna array elements consist of two Vivaldi antennas placed orthogonally on the substrate, with each antenna having vertical and horizontal polarization modes.
The patent also describes an inspection method for the unmanned airborne ground penetrating radar system. The method involves starting the sensor platform, which contains an inclination angle control algorithm with adaptive speed. The algorithm controls the angle between the laser rangefinder and the UAV's traveling plane based on the UAV's speed. This angle remains constant during the UAV's flight to accommodate attitude advance control of the UAV on the plane where the ground penetrating radar antenna array is located.
Additional details of the patent include the horn-shaped opening of the Vivaldi antenna facing the maximum radiation direction, the crossed balun feed structure connecting the Vivaldi antennas, and the cross-shaped dielectric substrate formed by the orthogonal placement of the Vivaldi antennas' dielectric substrates.
Overall, this patent presents an unmanned airborne ground penetrating radar system with a variable polarization antenna array for detecting hidden dangers in dams. The system's design and inspection method aim to enhance the accuracy and efficiency of dam safety assessments.
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