dji Agras T50 Agricultural Drone Aircraft User Guide
- June 13, 2024
- DJi
Table of Contents
dji Agras T50 Agricultural Drone Aircraft
Product Information
The Agras T50 is an advanced agricultural drone designed for efficient
spraying and spreading operations. It features a range of components and
technologies to ensure precise and effective performance.
- Aircraft: The drone consists of various components, including propellers, motors, ESCs (Electronic Speed Controllers), front indicators, frame arms, folding detection sensors, spray lance, sprinklers, spread tank, delivery pumps, FPV PTZ camera, downward and forward binocular vision sensors, spotlights, phased array radars (forward and rear), landing gear, intelligent flight battery, onboard D-RTKTM antennas, internal OCUSYNCTM image transmission antennas, external OcuSync image transmission antennas, and aircraft status indicators.
- Intelligent Flight Battery: The drone uses official DJI flight batteries. It is important to check the battery level before flying and follow the charging instructions provided in the manual.
- RTK Positioning: RTK positioning is recommended for accurate operations. The user can select RTK as the method for receiving signals in the app’s Operation View.
- Flow Meter Calibration: Calibrating the flow meter is necessary in certain situations such as changing liquid payload with different viscosity or significant differences between actual and planned areas. The calibration process involves filling the spray tank with water, manually starting and stopping spraying, and following the calibration steps in the app’s Operation View.
Product Usage Instructions
Preparing the Aircraft
- Unfold the M3 and M4 arms, and fasten the two arm locks. Avoid pinching fingers.
- Unfold the M1 and M2 arms, and fasten the two arm locks. Avoid pinching fingers.
- Unfold the propeller blades.
- Insert the Intelligent Flight Battery into the aircraft until you hear a click. Ensure the battery is firmly inserted and only insert or remove it when the aircraft is powered off.
- To remove the battery, press and hold the clamp and lift the battery up.
- Fold the M1 and M2 arms followed by the M3 and M4 arms to avoid damaging them.
Getting Ready for Takeoff
If RTK positioning is available, select RTK as the method for receiving
signals in the app’s Operation View. This ensures accurate positioning for the
drone.
Calibrating the Flow Meter
Calibrate the flow meter in the following situations:
- When changing liquid payload with different viscosity
- If there is a significant difference (more than 15%) between the actual area and the planned area after the first operation
To calibrate the flow meter
- Fill the spray tank with approximately 2 L of water.
- Press the Spray button to start or stop spraying manually to exhaust air.
- In the app’s Operation View, tap on the flow meter calibration section under Calibration.
- Select Start Calibration, and the calibration process will begin automatically.
- Once completed, the calibration result will be displayed in the app. Proceed with the operation if calibration is successful.
- If calibration fails, follow the app’s reminder to view and resolve the problem. Recalibrate and wait for a successful calibration.
Flight
For automatic takeoff and operation, create a field plan and select an
operation before takeoff. Refer to the Starting Operations section for more
information. For manual takeoff and landing
Takeoff
Perform a Combination Stick Command (CSC) and push the throttle stick up to
initiate takeoff Push the throttle stick up (left stick in Mode 2).
Landing
Push the throttle stick down until the aircraft lands. After landing, you can
choose one of the following methods to stop the motors:
- Method 1: When the aircraft has landed, push and hold the throttle stick down. The motors will stop after three seconds.
- Method 2: When the aircraft has landed, push the throttle stick down and perform the same Combination Stick Command (CSC) used to start the motors. Release both sticks once the motors have stopped.
Aircraft
The Agras T50 aircraft has an anti-torsion structure, offering reliable operations. The integrated spraying system can quickly transform into a spreading configuration with a spreading payload of up to 50 kg. The aircraft is equipped with the phased array radar system and binocular vision system, including downward and forward binocular vision, and forward and rear phased array radar. The systems provide 360-degree omnidirectional obstacle sensing to ensure operational safety. The ultra HD FPV camera with a tiltable gimbal can automatically collect HD field images for local offline reconstruction to assist in precise field planning. The Coaxial Dual Propeller structure brings a strong wind field. Pesticides can penetrate thick canopies to allow thorough spraying. The spraying system is equipped with the Magnetic Drive Impeller Pump, Dual Atomized Sprinkler, Anti-Drip Centrifugal Valve, and solenoid valve, to ensure more efficient and precise pesticide spraying, as well as save liquid pesticide. The spraying system can be upgraded with two more sprinklers to meet different operation scenarios.
- Propellers
- Motors
- ESCs
- Aircraft Front Indicators (on two front arms)
- Frame Arms
- Folding Detection Sensors (built-in)
- Spray Lance
- Sprinklers
- Spread Tank
- Delivery Pumps
- FPV PTZ camera
- Downward Binocular Vision
- Forward Binocular Vision
- Spotlights
- Forward Phased Array Radar
- Rear Phased Array Radar
- Landing Gear
- Intelligent Flight Battery
- Onboard D-RTKTM Antennas
- Internal OCUSYNCTM Image Transmission Antennas
- External OcuSync Image Transmission Antennas
- Aircraft Status Indicators (on two rear arms)
Using the T50
Preparing the Intelligent Flight Battery
Only use official DJI flight batteries. Check the battery level before flying
and charge according to the corresponding manual document.
Preparing the Aircraft
- Unfold the M3 and M4 arms, and fasten the two arm locks. Avoid pinching fingers.
- Unfold the M1 and M2 arms, and fasten the two arm locks. Avoid pinching fingers.
- Unfold the propeller blades.
- Insert the Intelligent Flight Battery into the aircraft until you hear a click.
- Make sure that the battery is firmly inserted into the aircraft. Only insert or remove the battery when the aircraft is powered off.
- To remove the battery, press and hold the clamp and lift the battery up.
- Fold the M1 and M2 arms followed by the M3 and M4 arms. Otherwise, the arms may be damaged.
Getting Ready for Takeoff
- Place the aircraft on open, flat ground with the rear of the aircraft facing toward you.
- Make sure that the propellers are securely mounted, there are no foreign objects in or on the motors and propellers, the propeller blades and arms are unfolded, and the arm locks are firmly fastened.
- Make sure that the spray tank and flight battery are firmly in place.
- Power on the remote controller, make sure that the DJI Agras app is open, and power on the aircraft. Tap Start on the home screen of the app to enter Operation View. Make sure that the GNSS signals are strong and the screen shows Ready to GO (GNSS) or Ready to GO (RTK). Otherwise, the aircraft cannot take off.
- RTK positioning is recommended. In the app, go to Operation View, tap > RTK, and select a method for receiving RTK signals.
Calibrating the Flow Meter
Make sure to calibrate the flow meter in the following situations: Change
liquid payload with different viscosity. The difference between the actual
area and the planned area is more than 15% after the first operation.
Calibrating procedure
Get Ready to Calibrate
- Fill the spray tank with approximately 2 L of water.
- Press the Spray button to start or stop spraying manually in order to exhaust air.
- Calibrating the flow meter
- In the app, go to Operation View, tap >, then tap Calibration on the right of the flow meter calibration section.
- ap Start Calibration and calibration will start automatically. The result of the calibration will be displayed in the app when completed.
- After calibrating successfully, users can proceed with the operation.
- If calibration fails, tap the reminder to view and resolve the problem. Afterwards, recalibrate and wait for successful calibration.
Flight
In order for the aircraft to automatically take off and perform an operation,
it is recommended to create a plan for a field and select an operation before
takeoff. Refer to the Starting Operations section for more information. For
other scenarios, take off and land manually as follows.
Takeoff
Perform a Combination Stick Command (CSC) and push the throttle stick up to
take off
Landing
Push the throttle stick down until the aircraft lands. There are two methods
to stop the motors after landing.
Method 1: When the aircraft has landed, push and hold the throttle stick
down. The motors will stop after three seconds.
Method 2: When the aircraft has landed, push the throttle stick down, and
perform the same CSC that was used to start the motors. Release both sticks
once the motors have stopped.
- Spinning propellers can be dangerous. Stay away from spinning propellers and motors.
- DO NOT start the motors in confined spaces or where there are people nearby.
- Maintain control of the remote controller as long as the motors are running.
- DO NOT stop the motors mid-flight. Otherwise, the aircraft will be crashed. Stop the motors only in an emergency situation to reduce the risk of damage or injury.
- It is recommended to use Method 1 to stop the motors. When using Method 2 to stop the motors, the aircraft may roll over if it is not completely grounded. Use Method 2 with caution.
- After landing, power off the aircraft before turning off the remote controller.
Starting Operations
Users can perform aerial surveying for the operation area in the DJI Agras app, and receive an HD map via offline reconstruction in the remote controller. Field planning and identification can be performed on the HD map before route operation. The following descriptions use Crosshair and Route Mapping and Route Mode as an example.
- Power on the remote controller and then the aircraft. Enter Operation View in the DJI Agras app.
- Tap the Mode button on the upper left corner and select Route Mapping in the Mapping panel.
- Tap on the bottom right of the screen and select Area Route or Boundary Route. Then tap in the middle of the right screen to select Crosshair in the Add Point list.
- Drag the map and tap Add to add a point at the crosshairs. Tap to save.
- Tap and move the slider to launch the aircraft. The aircraft will perform the mapping operation along the route and land automatically.
- Wait for the app to complete the reconstruction. The reconstruction result will be displayed on the original map.
- Tap Identify Field, then tap an identified field to select it and adjust the boundary.
- Tap the Mode button on the upper left and select Route in the Agriculture panel.
- Tap on the left and select a field in the field list.
- Tap Edit to edit the field and set route parameters. Drag to adjust the flight direction of the route. Then save.
- Tap to use the field. Set task parameters and tap to save.
- Tap, check the aircraft status and task settings, and move the slider to take off. The aircraft will perform the operation automatically on automatically.
Only take off in open areas and set an appropriate Connection Routing and RTH Altitude according to the operating environment. An operation can be paused by moving the control stick slightly. The aircraft will hover and record the breakpoint. After that, the aircraft can be controlled manually. Select the operation again to continue. The aircraft will return to the breakpoint automatically and resume the operation. Pay attention to aircraft safety when returning to a breakpoint. In the Route and Fruit Tree Operation modes, the aircraft is able to circumvent obstacles, which are disabled by default and can be enabled in the app. If the function is enabled and the aircraft detects obstacles, the aircraft will slow down circumvent the obstacles, and return to the original flight path. Users can set the action the aircraft will perform after the operation is completed in the app.
More Operation Modes and Functions
Refer to the user manual for more information about the A-B Route Operation,
Manual Operation, and Fruit Tree modes, and on how to use functions such as
Connection Routing, Operation Resumption, System Data Protection, and Empty
Tank.
Specifications
Aircraft (Model: 3WWDZ-40B)
Operating Frequency| 2.4000-2.4835 GHz
5.725-5.850 GHz
Transmitter Power (EIRP)| 2.4 GHz: <33 dBm (FCC), <20 dBm (CE/SRRC/MIC)
5.8 GHz: <33 dBm (FCC), <23 dBm (SRRC), <14 dBm (CE)
RTK/GNSS Operating Frequency| RTK: GPS L1/L2, GLONASS F1/F2, BeiDou B1I/B2I/B3I, Galileo E1/E5b, QZSS L1/L2
GNSS: GPS L1, GLONASS F1, BeiDou B1I, Galileo E1, QZSS L1
Operating Temperature| 0° to 45° C (32° to 113° F)
Forward Phased Array Radar (Model: RD241608RF）
Operating Frequency| 24.05-24.25 GHz (NCC/FCC/MIC/KC/CE)
Power Consumption| 23 W
Transmitter Power (EIRP)| <20 dBm (NCC/MIC/KC/CE/FCC)
Operating Voltage| DC 15 V
Operating Temperature| 0° to 45° C (32° to 113° F)
Rear Phased Array Radar (Model: RD241608RB）
Operating Frequency| 24.05-24.25 GHz (NCC/FCC/MIC/KC/CE)
Power Consumption| 18 W
Transmitter Power (EIRP)| <20 dBm (NCC/MIC/KC/CE/FCC)
Operating Voltage| DC 15 V
Operating Temperature| 0° to 45° C (32° to 113° F)
FCC compliance statement
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) the device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation. changes or
modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more
of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
a minimum distance of 20cm between the radiator and your body. This
transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
ISED compliance statement
This device contains license-exempt transmitter(s)/receiver(s) that comply
with Innovation, Science and Economic Development Canada’s license-exempt
RSS(s). Operation is subject to the following two conditions:
(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may
cause undesired operation of the device.
ISED Radiation Exposure Statement
This equipment complies with IC RSS-102 radiation exposure limits set forth
for an uncontrolled environment. This equipment should be installed and
operated with a minimum distance of 20 cm between the radiator and your body.
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