Tethered UAV Camera Array for Rapid 360° Surveillance
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Solution Overview
Problem
The Immersive Imaging System (IIS) is too large, heavy, and power-consuming to be practical for mobile applications or quick deployments, limiting its use in scenarios like outdoor events or natural disaster sites where traditional mounting structures are absent.
Innovation Solution
The DragonFly system, a smaller, lighter, and more efficient wide-area motion imaging system, is developed for deployment on unmanned aircraft systems (UAS), featuring a camera array with overlapping fields of view, a remote server for data processing, and a tether for power and data transmission, enabling 360° surveillance without the need for towers or fences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the Immersive Imaging System (IIS) is used to provide 360-degree video surveillance, then comprehensive surveillance coverage and high spatial resolution are achieved, but the system becomes too large, heavy, and power-consuming for mobile applications or quick deployments
Solution Approach 1:
The patent divides the surveillance system into two distinct configurations: a stationary IIS mounted on towers or fences for comprehensive 360-degree coverage, and a mobile UAS-based system for rapid deployment. Each configuration uses segmented camera arrays optimized for its specific application, allowing the system to achieve comprehensive surveillance without requiring the full IIS infrastructure to be mobile.
Solution Approach 2:
The patent transitions from ground-based stationary mounting (0D/1D) to aerial three-dimensional positioning (3D). By mounting camera arrays on UAS that can hover and position themselves in three-dimensional space, the system achieves comprehensive surveillance coverage without requiring heavy ground-based towers or fences, effectively solving the weight contradiction through dimensional change.
2Reliability
If the Immersive Imaging System (IIS) is deployed with multiple camera arrays and processing hardware, then high spatial resolution and comprehensive coverage are achieved, but the device complexity and deployment difficulty increase
Solution Approach 1:
The patent makes the camera array design universal by using identical or similar camera modules in both the stationary IIS and mobile UAS configurations. The same camera array architecture can be deployed in different settings (ground-based or aerial) with minimal modification, reducing overall system complexity while maintaining high image resolution through standardized components.
Solution Approach 2:
The patent uses replicated camera modules rather than unique complex components. Multiple identical camera units are arranged in arrays for both IIS and UAS applications, allowing for simplified manufacturing, easier maintenance, and reduced complexity through standardization. The modular copied design enables high resolution through multiple sensors rather than through complex single-lens systems.
3Stability of the object's composition
If the Immersive Imaging System (IIS) is installed on towers or fences, then stable 360-degree surveillance is achieved, but the system cannot be quickly deployed or moved to different locations
Solution Approach 1:
The patent introduces dynamic mobility by transitioning from fixed ground-based towers to aerial UAS platforms that can dynamically reposition themselves. The UAS can hover in place to provide stable surveillance from a fixed aerial position, then move to new locations as needed, combining stability during operation with rapid redeployment capability between events or locations.
Solution Approach 2:
The patent uses the UAS aircraft itself as an intermediary mounting platform between the ground and traditional tower structures. This intermediary platform provides the benefits of both stationary stability (when hovering) and mobility (when transitioning between locations), eliminating the need for permanent ground-based infrastructure while maintaining surveillance stability during operation.
4Ease of operation
If the DragonFly system uses fewer components and simpler optics, then deployment time and operational complexity are reduced, but the system must still achieve comparable surveillance capabilities
Solution Approach 1:
The patent changes key system parameters by transitioning from ground-level stationary mounting to aerial positioning at elevated heights. This parameter change allows the use of fewer and simpler camera modules while still achieving comprehensive 360-degree coverage, as the aerial perspective provides broader field of view and reduces the need for multiple ground-based units.
Solution Approach 2:
By moving the camera array to three-dimensional aerial space rather than ground-level positioning, the system achieves enhanced surveillance capability with fewer components. The vertical dimension provides natural vantage points that increase field of view and reduce occlusions, allowing simplified optics to achieve comparable or superior performance to complex ground-based systems.
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
DragonFly provides effective 360° surveillance with reduced component count and lower operational complexity, allowing for rapid deployment and integration with other systems, enhancing situational awareness in areas where traditional IIS installations are impractical.
Implementation Method 1
This tether can provide electrical power to the UAV and/or the imaging system
Implementation Method 2
the tether comprises a fiber-optic link configured to convey the optical signal from the processor to the remote server
Data Source
AI summary
A wide-area motion imaging system provides 360° persistent surveillance with a camera array that is small, light-weight, and operates at low power. The camera array is mounted on a tethered drone, which can hover at heights of up to 400′, and includes small imagers fitted with lenses of different fixed focal lengths. The tether provides power, communication, and a data link from the camera array to a ground processing server that receives, processes and stores the imagery. The server also collects absolute and relative position data from a global positioning system (GPS) receiver and an inertial measurement unit (IMU) carried by the drone. The server uses this position data to correct the rolling shutter effect and to stabilize and georectify the final images, which can be stitched together and shown to a user live or in playback via a separate user interface.