UAV Localization Using Mobile UWB Beacons for Indoor Precision
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing localization systems for unmanned aerial vehicles (UAVs) face challenges in achieving high precision localization, especially in indoor environments where GPS signals are unreliable, and conventional methods require extensive sensor setup, which is impractical for lightweight or small drones.
Innovation Solution
A localization system utilizing ultra-wideband (UWB) trackers mounted on mobile reference UAVs that act as beacons, allowing for high-precision localization of additional UAVs without the need for pre-mounted sensors, enabling precise control of drone swarms for applications like indoor light shows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If GPS-based localization is used for outdoor UAV localization, then localization coverage is improved, but localization precision deteriorates in indoor environments where GPS signals cannot penetrate
Solution Approach 1:
The system divides the localization problem into two segments: outdoor localization using GPS and indoor localization using visual markers. This allows each method to operate in its optimal environment, maintaining both broad coverage and high precision where needed
Solution Approach 2:
Visual markers serve as an intermediary between the UAV and the indoor environment. These markers provide detectable features that enable precise localization indoors without relying on GPS signals, effectively bridging the gap where GPS fails
2Measurement precision
If conventional localization systems with extensive sensor setup are used, then localization precision is improved, but device complexity and setup time worsen
Solution Approach 1:
The system uses the UAV's existing onboard camera for localization purposes, eliminating the need for separate specialized sensors. The camera serves dual purposes: navigation/capture and localization, thereby reducing overall system complexity while maintaining precision
Solution Approach 2:
The onboard camera is made multi-functional by using it both for its primary purpose (navigation and capture) and for localization through visual marker detection. This universal usage reduces the need for additional dedicated localization hardware
3Ease of operation
If lightweight UAV design is pursued, then ease of operation is improved, but the ability to carry localization sensors worsens
Solution Approach 1:
The lightweight UAV uses its existing onboard camera for localization instead of carrying additional specialized sensors. This self-service approach allows the UAV to maintain its lightweight design while still achieving precise localization through visual markers
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 high-precision localization of UAVs with minimal setup time and weight, facilitating complex maneuvers and choreographies by compensating for real-time movements, particularly suitable for indoor and outdoor operations with dense drone deployments.
Implementation Method 1
A localization system utilizing ultra-wideband (UWB) trackers mounted on mobile reference UAVs that act as beacons
Data Source
Figure 1
Figure 2
Figure 3
AI summary
According to various aspects, a vehicle localization system is provided, including: a plurality of localization devices configured to receive vehicle position information representing a position of one or more vehicles located in a vicinity of the plurality of localization devices, the plurality of localization devices includes a first set of localization devices and a second set of localization devices, wherein the first set of localization devices is configured to receive additional position information representing a position of one or more localization devices of the second set of localization devices; and one or more processors configured to receive reference position information representing a positional relationship of the localization devices of the first set of localization devices relative to one another, determine a current position of each of the one or more vehicles based on the vehicle position information, the reference position information, and the additional position information.