What is the 3D Infrared Sensor in DJI Flip?

Although the Flip does not have traditional obstacle avoidance sensors like higher-end DJI models, its forward-facing 3D Infrared Sensing System provides a limited form of collision avoidance. This is particularly useful when using the Return to Home function, as the planned flight path is displayed as a green overlay on the controller screen. DJI also claims that this system improves flight safety in low-light conditions.

How the 3D Infrared Sensor Works

The 3D Infrared Sensor on the DJI Flip uses infrared light to build a three-dimensional map of the drone’s surroundings. This allows it to recognize obstacles and adjust its flight path accordingly all in real time. This sensing technology enables the Flip to fly more safely and stably in complex or low-visibility environments, reducing the risk of accidental collisions.

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Limited Obstacle Avoidance, Smart Safety

Unlike DJI’s flagship drones that come with multi-directional obstacle sensors, the DJI Flip features only one 3D infrared sensor located at the front. This means the drone doesn’t offer full obstacle avoidance but can still detect and track people and avoid frontal collisions. It’s especially helpful during Return to Home (RTH) operations, where the projected flight path appears as a green overlay on the controller screen offering real-time visual cues to the user.

DJI Flip Sensing System Overview

Forward Sensing – 3D Infrared

Sensing Type: 3D Infrared Sensing System
Measurement Range: 0.3 – 8 meters (reflectivity > 10%)
Field of View (FOV): Horizontal 60°, Vertical 60°

Downward Sensing – Visual & Infrared

Sensing Type: One visual sensor + one infrared sensor
Measurement Range: 0.3 – 8 meters (reflectivity > 10%)
Precise Hovering Range: 0.5 – 10 meters
Field of View (FOV): Horizontal 60°, Vertical 60°
Operating Environment:
- Surfaces with visible patterns
- Diffuse reflectivity > 20% (e.g., cement pavement)
- Adequate lighting (lux > 15)

Article Summary

While the DJI Flip doesn’t offer full-fledged obstacle avoidance, its 3D Infrared Sensing System provides a smart, lightweight alternative for enhancing flight safety. Especially beneficial in low-light or urban environments, this sensor makes the Flip a capable and reliable drone for casual users who still want intelligent navigation features.