UAV VHF Wildlife Tracking System

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Solution Overview

Problem

Conventional wildlife tracking systems using satellite tags are ineffective for smaller species due to weight constraints, and require line-of-sight communication, limiting their applicability and accuracy.

Innovation Solution

An unmanned aerial vehicle (UAV) wildlife monitoring system that includes a ground control station wirelessly coupled to a UAV equipped with a VHF radio receiver and a software-defined radio receiver, capable of receiving and processing VHF signals from tags attached to animals, improving signal-to-noise ratio and enabling 3D mapping of signal strengths, allowing for remote and accurate location tracking without line-of-sight requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If satellite tags are used for wildlife tracking, then tracking capability is provided, but weight constraints prevent their use on smaller species

Engineering Contradiction:
Improvetracking capabilityVSAvoidtag weight
Core Design Contradiction:
Measurement precisionVSWeight of moving object

Solution Approach 1:

The patent employs VHF tags that are lightweight and disposable, attached to small wildlife species for short-term tracking studies. These tags are significantly lighter than satellite tags, enabling their use on smaller animals while providing sufficient tracking capability for the duration of the study.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent introduces a UAV-based receiver system as an intermediary between the VHF tags on animals and the ground control station. The UAV flies above the terrain to receive VHF signals from tags, overcoming ground obstacles and extending the effective range beyond line-of-sight limitations of ground-based receivers.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If ground-based VHF receivers are used, then line-of-sight communication is required, but this limits tracking accuracy in challenging terrains

Engineering Contradiction:
Improvelocation tracking accuracyVSAvoidterrain adaptability
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent transitions from ground-based receivers operating in a 2D plane to UAV-based receivers operating in 3D space. By flying above the terrain, the UAV receiver eliminates ground obstacles and achieves line-of-sight communication across valleys, hills, and other challenging terrain features that would block ground-based signals.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The UAV acts as a mobile intermediary platform that dynamically positions itself to maintain optimal signal reception geometry. The flight controller adjusts the UAV's position and orientation to keep the antenna pointed toward the tag, maintaining communication reliability in complex terrain environments.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If conventional ground-based systems are used, then equipment portability is limited, but UAV systems require complex flight control infrastructure

Engineering Contradiction:
Improvesystem portabilityVSAvoidflight control system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The UAV system incorporates autonomous flight capabilities with pre-programmed flight paths and automated tag tracking algorithms. The flight controller automatically adjusts the UAV's position and antenna orientation to maintain optimal signal reception, reducing the need for constant manual intervention and making the system more portable and easier to deploy in remote locations.

Inventive Principle:
Principle #25Self-service

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 accurate tracking of smaller wildlife species by using VHF tags, overcoming weight limitations and line-of-sight constraints, and allowing for simultaneous monitoring of multiple animals, improving detection and monitoring capabilities in challenging terrains.

Implementation Method 1

the VHF radio receiver receives a VHF radio signal from the VHF tag received by the first antenna

Methodology Applied
Scientific EffectVHF radio signal reception: Electromagnetic Induction

Implementation Method 2

the software defined radio receiver receives a VHF radio signal from the VHF tag received by the first antenna and amplified by the low noise amplifier

Methodology Applied
Scientific EffectSignal amplification: Magnetic Amplifier

Data Source

PatentUS9979463B1UAV wildlife monitoring system and related methods
Publication Date: 2018.05.22 ARIZONA BOARD OF REGENTS ACTING FOR & ON BEHALF OF NORTHERN ARIZONA UNIV
  • US9979463B1 patent drawing
  • US9979463B1 patent drawing
  • US9979463B1 patent drawing

AI summary

Implementations of UAV wildlife monitoring system may include a ground control station wirelessly coupled to a UAV which may include a flight controller, a first radio, a second radio, a first antenna, a second antenna, a very high frequency (VHF) radio receiver, and a computer, all operatively coupled together. The monitoring system may also include a VHF tag configured to be coupled to an animal, wherein when the VHF tag is coupled to the animal, the VHF radio receiver receives a VHF radio signal from the VHF tag using the first antenna, wherein the computer process the VHF radio signal to create the location data from the VHF radio signal, processes the location data, and sends the location data to the second radio, wherein the second radio transmits the location data into a telecommunications channel, and wherein the ground control station receives the location data from the telecommunications channel.