Spinning LIDAR Projectile for 3D Mapping in Obstructed Spaces
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Solution Overview
Problem
Existing methods for three-dimensional mapping of landscapes and structures are limited by the need for direct line of sight, which can be obstructed by random obstacles or narrow gaps, and are often cumbersome and expensive, such as using drones or cameras.
Innovation Solution
A LIDAR-equipped projectile that spins during flight, emitting light pulses and receiving reflected pulses to create a three-dimensional map of the terrain and objects, even in areas with obstructed views.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If cameras or drones are used for three-dimensional mapping, then mapping capability is improved, but device size, cost, and noise increase
Solution Approach 1:
The patent employs a projectile as a disposable mapping device that is launched into the target area, performs LIDAR scanning, and is then discarded. This eliminates the need for expensive, recoverable systems like drones or cable cameras, directly resolving the contradiction between mapping capability and device complexity/cost
Solution Approach 2:
The patent replaces mechanical camera-based systems with a LIDAR-based optical system mounted on a projectile. This substitution enables three-dimensional mapping without requiring large mechanical structures or complex stabilization mechanisms, thereby reducing device size while maintaining mapping precision
2Measurement precision
If cameras are used for three-dimensional mapping, then mapping data can be collected, but direct line of sight is required which is blocked by obstacles
Solution Approach 1:
The patent transitions from ground-based or aerial camera systems that require horizontal line of sight to a projectile-based system that approaches the target from above through narrow gaps. This dimensional change in approach allows the system to map areas previously inaccessible to camera-based systems
Solution Approach 2:
The patent uses a spinning projectile that rotates during flight, allowing the LIDAR scanner to sweep across the target area from multiple angular positions. This segmentation of the scanning process across different orientations enables data collection from areas that would be blocked from a single fixed viewpoint
3Adaptability or versatility
If a spinning projectile is used for mapping, then access to narrow spaces is improved, but the system complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single compact projectile: LIDAR scanning, GPS location tracking, and spinning stabilization. This multi-functionality allows the system to access narrow spaces and perform complete three-dimensional mapping without requiring separate specialized equipment, thereby reducing overall system complexity despite the enhanced adaptability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and precise three-dimensional mapping in challenging environments by penetrating narrow spaces and providing detailed data for creating accurate maps.
Implementation Method 1
receiving, at the spinning projectile, a plurality of reflected light pulses responsive to the plurality of light pulses reflecting off an object or a terrain portion
Implementation Method 2
determining a distance of the object or the terrain portion from the light source
Data Source
AI summary
A method for using a LIDAR-equipped projectile for three-dimensional mapping including sending a signal to a light source to cause the light source to emit a plurality of light pulses, the light source located on a spinning projectile proceeding along a predetermined path; receiving, at the spinning projectile, a plurality of reflected light pulses responsive to the plurality of light pulses reflecting off an object or a terrain portion; determining a distance of the object or the terrain portion from the light source; and generating a three-dimensional map of the object based on the determined distance of the object or the terrain portion from the light source.