Drone Collision Avoidance for Beginners
Drone Collision Avoidance Technologies: The Basics
The second thing to note about drone collision avoidance technologies is that they are a crucial step on the path towards true Intelligent Flying Machines (IFMs), but they are not a fully-autonomous flight solution. They encompass an array of high-resolution sensors with fast refresh rates, which feed positional data to the flight control system so that it can autonomously adjust vertical thrust or roll to avoid an object that has entered the sensor’s field of view (FoV). In effect, it assists the pilot to varying degrees, depending upon the technology’s specifications and limitations.
Several sensing technologies are available for drone collision avoidance: Infrared (IR); LiDAR; Monocular vision; Stereo vision; Time-of-flight (ToF), and more.
How Does Drone Collision Avoidance Work?
A single time-of-flight sensor attached to the bottom of the drone functions as a precision altimeter to maintain a constant height; while a multidirectional LiDAR time-of-flight sensor array provides up to 360° positional monitoring.
These integrated systems enable the drone to minutely adjust its lateral position without ascending or descending due to pitch and roll. This is because the time-of-flight sensor acting as an altimeter holds the UAV at a fixed height with the assistance of autopiloting software. Vertical thrust is adjusted autonomously to maintain a desired height, even when the UAV pitches to change direction.
Meanwhile, the drone’s lateral position is adjusted by the multidirectional LiDAR array which simultaneously acquires proximity data from up to eight different axes at high speeds. Continuous proximity sensing feeds back to internal accelerometers that decelerate the UAV to avoid static or dynamic objects that enter this comprehensive field of view.
Outdoor & Indoor Drone Collision Avoidance
Smart drone collision avoidance systems based on LiDAR and time-of-flight sensing have demonstrated outstanding performance when it comes to navigating GPS-denied indoor environments and ensuring consistency in the face of outdoor obstacles like vegetation and manmade structures.
Drone Collision Avoidance Systems from Terabee
Benefits of Terabee Time-of-Flight Products
8m to 60m range gives the ability to detect obstacles far enough for fast-moving drones.
Small form factor (diameter of 120 cm) enables easy integration on the most common drone chassis.
Lightweight (from 92g) and maximum power consumption of 1100 mA at 12V reduces impact on flight time.
Always Eye safe means health preservation of the pilot and any person around the sensors.