What is the DJI Mavic 4 Pro's obstacle sensing system and how does it work?

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What is the DJI Mavic 4 Pro's obstacle sensing system and how does it work: The DJI Mavic 4 Pro features an advanced omnidirectional obstacle sensing system, which means it can identify and avoid obstacles in all directions: front, back, above, below, and to the side. This system is comprised of multiple visual, ultrasonic, and time-of-flight (ToF) sensors, which work together to map the drone's three-dimensional environment in real time. This capability provides increased safety during flight, especially in complex and narrow environments.

This system relies on DJI's advanced detection algorithm, which constantly analyzes the information it receives from the sensors to predict potential collisions and activate automatic evasive maneuvers. For example, if the drone approaches a tree or wall, it decelerates or stops completely before impact, and can even adjust its trajectory if it is in Intelligent Flight Mode. This is particularly useful for autonomous flights such as ActiveTrack or Waypoint, where the drone follows pre-set routes without direct intervention from the pilot.

In manual flight situations, the system acts as a safety layer that protects the operator from human error, but it can also be configured to be disabled if the pilot desires full control without assistance. However, for most recreational, cinematic, or even industrial flights, leaving this system enabled offers an ideal combination of freedom of movement and operational safety. Furthermore, it is essential to consider lighting conditions, as visual sensors can have reduced performance in dark environments.

During night flights or in low-light indoor conditions, the obstacle detection system can rely on the drone's built-in auxiliary lights, which illuminate the surroundings to improve sensor accuracy. However, it is always advisable to maintain a direct line of sight to the drone in these conditions, as awareness of the surroundings may be impaired. This suite of sensors makes the DJI Mavic 4 Pro a robust tool for all types of missions, from professional photography to technical inspections.