Drone Collision Prevention Using Sensor-Controlled Motor Cutoff
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Solution Overview
Problem
Drones often collide with obstacles due to inadequate user control or communication failures, leading to safety issues and property damage, especially when they fly out of the remote control range or experience control problems.
Innovation Solution
A drone equipped with sensors and switch units that control the power supply to its blades, allowing it to detect obstacles and adjust its flight path autonomously, and includes a transmission unit for safe recovery when out of range or experiencing control issues, using multiple power supply units and sensors to differentiate between obstacle signals and external interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drone relies on remote control for flight operation, then the user can control the drone's movement, but the drone may collide with obstacles due to inadequate control or communication failure
Solution Approach 1:
The drone is equipped with sensors that enable it to autonomously detect obstacles and control units that automatically adjust blade rotation based on sensor signals, allowing the drone to prevent collisions by itself without requiring continuous user intervention or remote control input
Solution Approach 2:
The sensor continuously monitors the environment around the drone and provides real-time feedback to the control unit, which adjusts the blade rotation in response to detected obstacles, creating a closed-loop control system that prevents collisions autonomously
2Reliability
If the drone increases motor output to prevent collision, then the obstacle avoidance capability is improved, but the power consumption increases
Solution Approach 1:
The control unit dynamically adjusts the rotation of individual blades based on real-time sensor input, increasing power output only for the specific blade needed to avoid the detected obstacle rather than increasing power for all motors, thereby minimizing overall power consumption while maintaining effective collision prevention
3Measurement precision
If the drone uses sensors to detect obstacles, then the collision detection accuracy is improved, but the device complexity increases
Solution Approach 1:
The drone uses multiple sensors positioned at different locations (front, rear, left, right) to detect obstacles in various directions independently, with each sensor connected to the control unit that processes signals separately and adjusts corresponding blade rotation, dividing the complex detection task into simpler localized measurements
Data Source
AI summary
The present invention relates to a drone. The drone includes a main body, a plurality of blades, a plurality of driving motors, a power supply unit, a control unit, a plurality of sensors, and a plurality of switch units, and the switch units are connected to turn on and off power supplied to the driving motor that drives a blade corresponding to the sensor so that the main body does not collide with the obstacle. The blades are mounted on the main body. The driving motors correspond to the respective blades. The power supply unit supplies power. The control unit controls power. The sensors are installed to correspond to the respective blades. The switch units receive a signal detected by one of the sensors and turn on and off the direct supply of power to a corresponding one of the driving motors.