DJI Phantom 4 Multispectral

The Beginning of Intelligent Agriculture Missions

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Gain Immediate Insights into Plant Health

Gather precise plant-level data using the P4 Multispectral – a high-precision drone with a seamlessly integrated multispectral imaging system built for agriculture missions, environmental monitoring, and more. DJI has created this platform with the same powerful performance standards that DJI is known for, including 27 minutes max flight time and up to 7 km1 transmission range with the OcuSync system.

Make better-informed, targeted decisions

Get real-time, accurate positioning data on images captured by all six cameras with DJI’s TimeSync system, providing centimeter-level accurate measurements. The TimeSync system continually aligns the flight controller, RGB and NB cameras, and RTK module, fixing the positioning data to the center of the CMOS and ensuring each photo uses the most accurate metadata. All cameras go through a rigorous calibration process where radial and tangential lens distortions are measured. The distortion parameters gathered are saved into each image’s metadata, letting post-processing software adjust uniquely for every user.

Agriculture imagery collection is now simpler and more efficient than ever before with a built-in stabilized imaging system that collects comprehensive data sets right out of the box. Access information collected by 1 RGB camera and a multispectral camera array with 5 cameras covering Blue, Green, Red, Red Edge, and Near Infrared bands – all at 2 MP with global shutter, on a 3-axis stabilized gimbal.
An integrated spectral sunlight sensor on top of the drone captures solar irradiance, which maximizes accuracy and consistency of data collection through different times of day. When combined with post-processed data, this information helps to obtain the most accurate NDVI results.
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Simply having aerial imagery is not enough for ag professionals who want to know more. Switch between a preliminary Normalized Difference Vegetation Index (NDVI) analysis and the live RGB feed to immediately visualize where attention is needed, so targeted treatment decisions can be made quickly.
Enhance the accuracy of RTK positioning without internet connection by connecting the P4 Multispectral to the D-RTK 2 High Precision GNSS Mobile Station and NTRIP (Network Transport of RTCM via Internet Protocol)2, or store the satellite observation data to be used for Post Processed Kinematics (PPK).

Throughout all growing seasons, multispectral imagery can be helpful to ag professionals by providing information invisible to the human eye across the electromagnetic spectrum. Having access to this data and the subsequently obtained Vegetation Index data such as NDRE and NDVI, farmers can make timely, informed decisions on crop treatment, lowering costs, saving resources, and maximizing yields.

The Beginning of Intelligent Agriculture Missions

The P4 Multispectral consolidates the process of capturing data that gives insight into crop health and vegetation management. By integrating multispectral cameras into its drone platform, DJI is offering farmers with the first fully integrated, plug-and-play option. The P4 multispectral drone comes with a six-band camera covering RGB, blue, green, red edge, and near-infrared bands, which is the industry standard for multispectral imagining. Each color in the spectrum allows farmers to see unique information about the health of their crops that they would not be able to see with the naked eye. Instead of having to use targets to calibrate ambient lighting conditions, the P4 has an integrated spectral sunlight sensor that captures ambient lighting conditions while it is in flight. This feature ensures that data is accurate and consistent even when captured at different times of the day. This allows users to switch between a preliminary Normalized Difference Vegetation Index (NDVI) analysis and the live RGB feed to immediately visualize where attention is needed, so targeted treatment decisions can be made quickly.

Technical Specifications

  • Aircraft
  • Mapping Functions
  • Vision System
  • Camera
Aircraft
Description Specification
Takeoff Weight 1487 g
Max Service Ceiling Above Sea Level 19685 ft (6000 m)
Max Flight Time Approx. 27 minutes
Operating Temperature 0° to 40° C (32° to 104° F)
Hover Accuracy Range RTK enabled and functioning properly: Vertical: ± 0.1 m; Horizontal: ± 0.1 m RTK disabled: Vertical: ± 0.1 m (with vision positioning); ± 0.5 m (with GNSS positioning) Horizontal: ± 0.3 m (with vision positioning); ± 1.5 m (with GNSS positioning)
Image Position Compensation The relative positions of the centers of the six cameras’ CMOS and the phase center of the onboard D-RTK antenna have been calibrated and are recorded in the EXIF data of each image.
Mapping Functions
Description Specification
Ground Sample Distance (GSD) (H/18.9) cm/pixel, H indicates the aircraft altitude relative to the area mapped (unit: m)
Rate of Data Collection Max operating area of approx. 0.47 km2 for a single flight at an altitude of 180 m, i.e., GSD is approx. 9.52 cm/pixel
Vision System
Description Specification
Velocity Range ≤ 31 mph (50 kph) at 6.6 ft (2 m) above ground with adequate lighting
Altitude Range 0 - 33 ft (0 - 10 m)
Operating Range 0 - 33 ft (0 - 10 m)
Obstacle Sensory Range 2 - 98 ft (0.7 - 30 m)
Operating Environment Surfaces with clear patterns and adequate lighting (> 15 lux)
Camera
Description Specification
Sensors Six 1/2.9” CMOS, including one RGB sensor for visible light imaging and five monochrome sensors for multispectral imaging.
Filters Blue (B): 450 nm ± 16 nm; Green (G): 560 nm ± 16 nm; Red (R): 650 nm ± 16 nm; Red edge (RE): 730 nm ± 16 nm; Near-infrared (NIR): 840 nm ± 26 nm
Lenses FOV (Field of View): 62.7° Focal Length: 5.74 mm (35 mm format equivalent: 40 mm), autofocus set at ∞ Aperture: f/2.2
RGB Sensor ISO Range 200 - 800
Monochrome Sensor Gain 1 - 8x
Electronic Global Shutter 1/100 - 1/20000 s (visible light imaging); 1/100 - 1/10000 s (multispectral imaging)
Max Image Size 1600×1300 (4:3.25)
Photo Format JPEG (visible light imaging) + TIFF (multispectral imaging)
Supported File Systems FAT32 (£ 32 GB); exFAT (> 32 GB)
Supported SD Cards microSD with a minimum write speed of 15 MB/s. Max Capacity: 128 GB. Class 10 or UHS-1 rating required

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