Grid-Guided UAV Inductive Charging for Remote Navigation
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Solution Overview
Problem
Current UAV technology is limited by battery life, requiring frequent recharging and relying on infrastructure that is costly and scarce in remote areas, and faces navigation challenges in areas with poor cellular or satellite reception.
Innovation Solution
UAVs can harness electrical grid energy through inductive charging by using toroidal coils or landing pads connected to power lines, and employ magnetic or heat patterns of the grid for navigation, integrating with the smart grid for communication and safety protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery-powered UAVs are used for delivery, then safety and design flexibility are improved, but flight distance is limited by battery life
Solution Approach 1:
The patent implements preliminary action by establishing a network of pre-positioned charging stations along delivery routes. These stations are placed in advance at strategic locations such as utility poles and buildings, enabling UAVs to recharge during transit without returning to base. This preliminary infrastructure deployment extends operational duration while maintaining battery-powered safety advantages.
Solution Approach 2:
The patent introduces charging stations as intermediary elements between the UAV and its base. These stationary charging units, equipped with wireless charging coils and power storage, serve as mobile recharge points that mediate the energy transfer. The intermediary charging stations enable extended flight distance by providing periodic energy replenishment during the UAV's operational cycle.
2Duration of action of moving object
If recharging infrastructure is established for UAVs, then service radius is extended, but capital expenditure increases
Solution Approach 1:
The patent applies universality by designing charging stations that can serve multiple functions: wireless power transfer to UAVs, power storage during off-peak hours, and integration with existing utility infrastructure. The multi-functional design allows a single charging station to replace multiple separate systems, reducing overall infrastructure capital expenditure while extending service radius.
Solution Approach 2:
The charging stations are designed with autonomous operation capabilities, automatically detecting UAV presence, initiating wireless charging, and managing power transfer without human intervention. This self-service functionality reduces operational complexity and maintenance costs, making the infrastructure more cost-effective while enabling broader service coverage.
3Ease of operation
If direct remote control is used for UAVs, then navigation control is maintained, but connection reliability deteriorates in remote areas
Solution Approach 1:
The patent segments the control system into multiple hierarchical levels: direct remote control for short-range operations, automated charging station handoff for medium-range transit, and base station coordination for long-range missions. This segmentation allows the system to maintain ease of operation where direct control is available while using automated protocols in remote areas where connection reliability would otherwise deteriorate.
Solution Approach 2:
The patent implements feedback mechanisms where charging stations continuously monitor UAV position, battery status, and communication signal quality. When direct control connection reliability deteriorates in remote areas, the system receives feedback and automatically transitions to automated navigation modes, with the charging station guiding the UAV to the next recharge point. This feedback-driven adaptation maintains operational reliability without requiring constant direct human control.
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
This solution extends UAV service radius, provides cost-effective recharging in remote areas, and enables reliable navigation without GPS or satellite navigation, using existing electrical infrastructure for power and guidance.
Implementation Method 1
The coil is configured to receive a charge from a power line through induction
Implementation Method 2
The detector is configured to detect a heat or magnetic pattern emitted by an electrical grid
Implementation Method 3
The detector is configured to detect a heat or magnetic pattern emitted by an electrical grid
Data Source
AI summary
An unmaned aerial vehicle includes an inductive charging coil for receiving an electric charge from the electrical grid by traveling within the electric field generated by power lines or by landing on a charging platform powered by the electrical lines. The unmaned aerial vehicle is able to navigate its route by sensing the electrical or heat signature generated by power lines and a map of the electrical lines to determine its geographic position at a given time and a route to a desired destination.