UAV Detector Mounting Structure for Low-Interference Anomaly Sensing
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Solution Overview
Problem
Existing unmanned aerial vehicles (UAVs) interfere with anomaly detectors, such as magnetic and acoustic detectors, due to their own magnetic and acoustic signatures, leading to inaccurate anomaly detection in inhospitable environments.
Innovation Solution
A detector attachment member is coupled to the UAV, with a length selected to minimize interference, and a lift system to counteract the detector's downward force, using an air pump or inflatable member for buoyancy, and a lightweight communication system for real-time data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the detector is mounted close to the UAV body, then the device complexity is reduced, but the measurement precision deteriorates due to interference from UAV's magnetic and acoustic signatures
Solution Approach 1:
A detachable detector attachment member is introduced as an intermediary component between the UAV body and the detector. This attachment member includes a detector mounting portion that positions the detector at an optimized distance and orientation relative to the UAV, reducing interference from the UAV's magnetic and acoustic signatures while maintaining ease of installation and removal.
Solution Approach 2:
The detector attachment member is designed to be detachable and adjustable, allowing the detector position to be dynamically optimized for different detection scenarios. The attachment member can be removed and reattached at different orientations or positions to adapt to varying operational requirements and minimize interference.
2Measurement precision
If the detector attachment member is extended to reduce interference, then the measurement precision improves, but the stability of the object deteriorates due to increased moment of inertia and structural flexibility
Solution Approach 1:
A counterweight portion is added to the detector attachment member to balance the extended structure. The counterweight is positioned and sized to compensate for the increased moment of inertia caused by extending the attachment member, thereby maintaining UAV flight stability while allowing the detector to be positioned at an optimal distance for reduced interference.
Solution Approach 2:
The detector attachment member employs an asymmetric design where the detector mounting portion extends in one direction while the counterweight portion extends in the opposite direction. This asymmetric configuration allows the detector to be positioned for optimal measurement precision while the counterweight balances the structural asymmetry to maintain flight stability.
3Stability of the object's composition
If a lift system is added to counteract detector weight, then the stability is maintained, but the device complexity and use of energy increase
Solution Approach 1:
Instead of using an active lift system, a passive counterweight portion is integrated into the detector attachment member. The counterweight is strategically positioned to provide mechanical balance that counteracts the detector's weight and minimizes its impact on UAV flight stability, eliminating the need for additional active lift generation mechanisms.
Solution Approach 2:
The detector attachment member is designed to be self-balancing through its counterweight configuration. The structural design automatically compensates for the detector's weight and interference effects without requiring external control systems or additional energy input, allowing the system to maintain stability through its inherent mechanical design.
4Object-generated harmful factors
If the detector is positioned far from the UAV, then the object-generated harmful factors are reduced, but the weight of moving object increases due to extended attachment structures
Solution Approach 1:
The detector attachment member utilizes a lightweight, flexible structural design that extends the detector away from the UAV body while minimizing the mass of the attachment structure itself. The thin-walled construction and optimized geometry reduce the weight penalty associated with extending the attachment member, allowing interference reduction without significant weight increase.
Solution Approach 2:
The detector attachment member is constructed from composite materials that provide high strength-to-weight ratio. This allows the attachment member to be extended to reduce interference while keeping the added weight minimal, as the composite materials enable long, thin structures that maintain structural integrity without requiring heavy reinforcement.
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
The solution ensures accurate anomaly detection by reducing UAV interference, maintaining flight stability, and enabling real-time data communication without adversely affecting the UAV's performance.
Implementation Method 1
the lift system includes an inflatable member proximate to the second end and configured to generate lift via buoyancy relative to an operating environment of the unmanned aerial vehicle
Implementation Method 2
a pump configured to move air from the air inlet, through the detector attachment member body, and to the air outlet
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3C
AI summary
A system includes a detector attachment member and a communication system. The detector attachment member includes a first end configured to be coupled to an unmanned aerial vehicle; a second end configured to be coupled to a detector; and a body extending between the first end and the second end, the body of a length selected such that an interference of the unmanned aerial vehicle at the detector is less than an interference threshold. The detector attachment member also includes a lift system coupled to the body. The communication system is coupled to the detector attachment member and is configured to provide communication between the unmanned aerial vehicle and the detector.