UAV Motion Feedback Control Using Distance and Direction Sensing
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Solution Overview
Problem
Current unmanned aerial vehicles (UAVs) lack effective methods to provide users with real-time feedback on the UAV's state, distance, and direction, especially in varying environments and user-UAV distances, which can lead to operational challenges and safety concerns.
Innovation Solution
The UAV is equipped with a transceiver, electronic speed controller, motor, propeller, processor, camera, and sensors that enable motion feedback and positioning information, allowing the processor to control the UAV's flight and provide feedback to the user through motion, LED flickering, and alert sounds based on user commands and environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UAV provides comprehensive real-time feedback on state, distance, and direction, then user awareness and safety are improved, but device complexity increases due to multiple sensors and processing requirements
Solution Approach 1:
The patent combines multiple feedback methods (LED indicators, acoustic alarms, and motion feedback) into a unified feedback system. The processor integrates data from various sensors and coordinates all feedback outputs through a single control architecture, reducing overall system complexity while maintaining comprehensive monitoring capabilities.
Solution Approach 2:
The processor serves multiple functions simultaneously: it processes sensor data, determines UAV state, calculates user distance and direction, controls LED indicators, manages acoustic alarms, and coordinates motion feedback. This multi-functionality consolidates what would otherwise be separate systems into a single processing unit.
2Reliability
If the UAV uses multiple feedback methods (LED, acoustic, motion), then feedback reliability is improved, but energy consumption increases
Solution Approach 1:
The feedback system dynamically selects and adjusts the intensity of different feedback methods based on the current UAV state and user distance. For example, motion feedback is used for distant users while LED indicators serve closer users, and acoustic alarms are activated only when necessary. This dynamic adaptation optimizes energy consumption while maintaining reliable feedback.
Solution Approach 2:
The processor adjusts feedback parameters such as LED brightness, alarm volume, and motion amplitude based on environmental conditions and user distance. These parameter changes allow the system to provide adequate feedback while minimizing energy consumption by avoiding maximum intensity output in all conditions.
3Measurement precision
If the UAV calculates distance and direction using camera and positioning receiver, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The processor acts as an intermediary that receives raw data from the positioning information receiver and camera, processes this data to calculate user distance and direction, and then uses these calculated values to control feedback mechanisms. This intermediary processing layer integrates multiple data sources without requiring direct complex interaction between the sensors themselves.
4Ease of operation
If the UAV performs motion feedback within user view range, then ease of operation is improved, but speed of response may be reduced due to positioning requirements
Solution Approach 1:
The processor continuously tracks user position and maintains knowledge of the user's view range in advance. When motion feedback is commanded, the system already has positioning data and can immediately determine the appropriate motion parameters and direction, eliminating the need for real-time calculation delays and enabling faster response while ensuring the feedback occurs within the user's view range.
Data Source
AI summary
An unmanned aerial vehicle (UAV) and a method for controlling the flight of the UAV are provided. The UAV provides a motion feedback corresponding to a user command received and a method for controlling the flight of the UAV. The UAV further provides a magnitude of motion feedback that is varied depending on the distance and/or direction between the user and the UAV and a method for controlling the flight of the UAV.