DJI P4 Multispectral Agriculture Drone System

Immediate Insights into Plant Health
The DJI P4 Multispectral simplifies the process of capturing data that provides insight into crop health and vegetation management. Featuring a 27 minute flight time and a 4.35 mile (7km) transmission range, farmers can cover vast portions of fields and identify problem spots.


See Underneath the Surface
Collecting agricultural imagery is now more efficient with a built in stabilized imaging system that gathers comprehensive data. Information collected by 1 RGB camera and a multispectral camera array with 5 other cameras covering Green, Red, Blue, Red Edge and Near Infrared bands all at 2 megapixels with global shutter. With a 3-axis stabilized gimbal you can now collect all the information you need in a short amount of time.


Built-In Spectral Sunlight Sensor for Best Results
The built-in spectral sunlight sensor on the top of the drone identifies solar irradiance. This helps maximize accuracy and allows for consistent data collection through different points of the day. When combined with post-processed data this information helps to gather the most accurate NDVI (normalized difference vegetation index) results.


Important Data at Your Disposal
Having aerial imagery is not enough for agricultural professionals who need to know more. With the P4 Multispectral you can switch between RGB and NDVI for a preliminary analysis. Using the live feed you can identify the problem areas where attention is needed.


Super Precision Flight
Real-time accurate positioning data captured by all 6 cameras provides centimeter-level accuracy. DJI's TimeSync system continually aligns the flight controller, RGB and NB cameras, as well as the RTK module - fixing the positioning data to center the CMOS to ensure each photo uses the most accurate metadata. All 6 cameras go through a meticulous calibration process where radial and tangential lens distortions are measured. The distortion parameters gathered are saved in each photo's metadata, allowing post-processing software to adjust uniquely for every shot.


D-RTK 2 Mobile Station and NTRIP Compatibility
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).

Plan Missions
Execute automated missions and manage flight data using the GS PRO App.

Collect Valuable Data
Gather multispectal images quickly and efficiently across large areas to identify problems.

Data Analysis
Access and process aerial data by applying plant-specific metrics and parameters to acquire the desired results on plant health.

Act on Data
Implement targeted treatments on areas that need attention based on accurate drone data.


Precision Agriculture
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.

Environmental Monitoring and Inspection
Routine inspections and maintenance involving plants can be made smarter and more efficient when using the P4 Multispectral – leverage its actionable multispectral insights to monitor forest health, measure biomass, map shorelines, or manage riparian vegetation while protecting habitats or ecosystems, and much more.

Aircraft

Takeoff Weight: 3.28 lbs (1487g)
Diagonal Distance (Propellers Excluded): 1.15 feet (350 mm)
Max Service Ceiling Above Sea Level: 19685 ft (6000 m)
Max Ascent Speed: 13.4 mph (automatic flight); 11.18 mph (manual control)
Max Descent Speed: 6.7 mph
Max Speed: 31 mph (50 kph) (P-mode); 36 mph (58 kph) (A-mode)
Max Flight Time: Approx. 27 minutes
Operating Temperature: 0° to 40° C (32° to 104° F)

Operating Frequency:
2.4000 GHz to 2.4835 GHz (Europe, Japan, Korea)
5.725 GHz to 5.850 GHz (Other countries/regions)

Transmission Power (EIRP):
2.4 GHz: < 20 dBm (CE / MIC / KCC)
5.8 GHz: < 26 dBm (FCC / SRRC / NCC)

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

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. 0.63 km2 for a single flight at an altitude of 180 m, i.e., GSD is approx. 9.52 cm/pixel, with a forward overlap rate of 80% and a side overlap ratio of 60%, during a flight that drains the battery from 100% to 30%.

GNSS

Single-Frequency High-Sensitivity GNSS:
GPS + BeiDou + Galileo (Asia); GPS + GLONASS + Galileo (other regions)

Multi-Frequency Multi-System High-Precision RTK GNSS:
Frequency Used
GPS: L1/L2; GLONASS: L1/L2; BeiDou: B1/B2; Galileo: E1/E5
First-Fixed Time: < 50 s
Positioning Accuracy: Vertical 1.5 cm + 1 ppm (RMS); Horizontal 1 cm + 1 ppm (RMS).
1 ppm indicates error with a 1 mm increase over 1 km of movement.
Velocity Accuracy: 0.03 m/s

Gimbal

Controllable Range: Tilt: -90° to +30°

Vision System

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

Sensors:
Six 1/2.9” CMOS, including one RGB sensor for visible light imaging and five monochrome sensors for multispectral imaging. Each Sensor: Effective pixels 2.08 MP (2.12 MP in total)

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 8
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
Operating Temperature: 0° to 40° C (32° to 104° F)

Remote Controller

Operating Frequency:
2.4000 GHz to 2.4835 GHz (Europe, Japan, Korea)
5.725 GHz to 5.850 GHz (Other countries/regions)

Transmission Power (EIRP):
2.4 GHz: < 20 dBm (CE / MIC / KCC)
5.8 GHz: < 26 dBm (FCC / SRRC / NCC)

Max Transmission Distance:
FCC / NCC: 4.3 mi (7 km)
CE / MIC / KCC / SRRC: 3.1 mi (5 km)(Unobstructed, free of interference)

Built-in Battery: 6000 mAh LiPo 2S
Operating Current / Voltage: 1.2 A @ 7.4 V
Mobile Device Holder: Tablets and smartphones
Operating Temperature: 0° to 40° C (32° to 104° F)

Intelligent Flight Battery

Capacity: 5870 mAh
Voltage: 15.2 V
Battery Type: LiPo 4S
Energy: 89.2 Wh
Net Weight: 1.03 lbs (468 g)
Operating Temperature: -10° to 40° C (14° to 104° F)
Charging Temperature: 5° to 40° C (41° to 104° F)
Max Charging Power: 160 W

Charging Hub

Voltage: 17.5 V
Operating Temperature: 5° to 40° C (41° to 104° F)

AC power Adapter
Voltage: 17.4 V
Rated Power: 160 W

1 - Aircraft
1 - Remote Controller
4 - Propeller Pairs
2 - Intelligent Flight Batteries
1 - AC Power Adapter
1 - AC Power Cable
1 - Intelligent Flight Battery Charging Hub
1 - Gimbal Clamp
1 - MicroSD Card
1 - Micro USB Cable
1 - Carrying Case