New Firmware Release for the Matrice 4 Series

DJI Matrice 4 Series releases new firmware that supports manual flight with real-time terrain following, intelligent detection with adjustable confidence levels, and enhanced features for spotlight and speaker.

On April 15th, this flagship flight platform received a new firmware upgrade, adding a number of practical functions and once again elevating its operational potential. 

Manual Flight with Real-time Terrain Follow

This feature enables the aircraft to dynamically adjust its altitude during manual flight based on real-time terrain data collected by the downward vision sensors. Maintaining a consistent relative altitude above ground, it ensures safe and stable operations even in complex or uneven terrain.

Real-time terrain-follow

The Matrice 4 series introduces a new Terrain Follow function for manual flight, offering simple and intuitive operation. Once enabled, the aircraft maintains a consistent Above Ground Level (AGL) altitude throughout the flight.

Pilots can temporarily adjust altitude by moving the control stick up or down. Once released, the aircraft automatically returns to the preset AGL, ensuring consistent flight height relative to the terrain.

This feature can also be seamlessly combined with Cruise Mode and Add Point, significantly enhancing the efficiency of patrol and search-and-rescue missions.

Supports Manual Terrain Follow

Notes

1. Altitude Limitation
   Terrain Follow is only supported within an AGL (Above Ground Level) range of 30 to 200 meters. The feature will be disabled if the altitude falls outside this range.

2. Environmental Conditions

   • Applicable Conditions: Requires sufficient lighting and clear ground textures (e.g., grass, roads) to ensure stable altitude measurements by the vision sensors.

   • Unsupported Conditions: Nighttime, foggy weather, water surfaces, snow-covered or textureless terrain.

Intelligent Recognition with Adjustable Confidence Threshold

The Matrice 4 series introduces a new confidence threshold setting for intelligent recognition, allowing users to define custom confidence levels. It also offers preset values tailored for common scenarios such as target counting and target search, meeting diverse operational needs.

The confidence value (ranging from 0 to 1) indicates how certain the model is about the presence of a target within the detection box:

• High Confidence (e.g., 75%): Indicates strong certainty and precise target localization. Suitable for accurate target counting.

• Low Confidence (e.g., 35%): Increases detection sensitivity to avoid missed targets, though it may result in more false positives. Ideal for target search operations.

Supports Confidence Threshold

Cruise Control Supports Fine-tune Speed Adjustment via C4 Dial

After enabling Cruise Control, the flight speed can be finely adjusted in 0.1 m/s increments using the C4 dial.

Using the C4 dial during Cruise Control allows for more convenient and precise speed adjustments. In large-scale search and rescue or inspection operations, combining this feature with Intelligent Detection, Terrain Follow, and Observation Recording can significantly reduce the operator’s workload.

Cruise mode supports fine-tune 

Spotlight and Speaker Function Upgrades

The DJI AL1 Spotlight now supports multiple strobe modes, including Slow Strobe, Fast Strobe, and Alternating Strobe.

• Slow Strobe: A slow, steady blinking mode designed for nighttime target indication and alerting personnel below.

• Fast Strobe: A rapid interval blinking mode ideal for emergency search and rescue, and safety warning scenarios. It quickly grabs attention, enhancing emergency response efficiency.

• Alternating Strobe: Left and right spotlights blink alternately, increasing the drone’s nighttime visibility and warning effect.

The DJI AS1 Speaker supports multiple languages: Mandarin, English, Korean, Japanese, French, and Spanish.

Firmware Versions:

Aircraft Firmware Version: V13.01.00.10
Remote Controller Firmware Version: V01.61.04.05
AS1 Firmware Version: V01.00.01.11
AL1 Firmware Version: V01.00.29.85
D-RTK 3 Firmware Version: V13.01.00.04
DJI Pilot 2 App Version: V13.1.0.19
DJI Assistant 2 Version: V2.1.15

Operating Instructions:

1. After upgrading, restart both the aircraft and the remote controller.
2. Ensure that the aircraft, remote controller, and app firmware are all up-to-date; otherwise, functionality may be restricted.
3. If the upgrade fails, restart the device and try again, or use the DJI Assistant 2 software to perform the upgrade.