P4 MULTISPECTRAL User Manual

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P4 Multispectral User Manual

RTK Functions

The P4 Multispectral has a built-in DJI Onboard D-RTK, which provides more accurate data for

centimeter-level positioning to improve operation precision when using with the DJI D-RTK 2 High

Precision GNSS Mobile Station or Network RTK service. The onboard D-RTK, providing precision

position and speed information combined with optimized algorithms, is more accurate than a

standard compass sensor and functions even with magnetic interference from metal structures,

ensuring stable ight. If the RTK signal is weak and dierential data cannot be transmitted during

a mission, users can read the raw satellite observations* recorded in the microSD card in the

aircraft after the ight, and then use PPK technology to achieve centimeter-level positioning.

* Supported later.

Using with the DJI D-RTK 2 Mobile Station

1. Go to Mission Page in DJI GS Pro, tap the icon or RTK on top of the screen to go

to the RTK settings menu, and then select D-RTK 2 as the RTK data source. Enable the

aircraft RTK at the bottom of the menu to ensure the aircraft has access to RTK data.

2. Tap Link. The remote controller will start beeping. Then press the link button on the mobile station.

3. Tap Connect to establish connection with the server. Wait for the RTK icon to display FIX, indicating

that the dierential data calculation is completed and the aircraft can use RTK for positioning.

Using with Network RTK Service

The Network RTK service uses the remote controller instead of the base station to connect to an

approved Network RTK server to send and receive dierential data. Keep the remote controller

on and the mobile device connected to the internet when using this function.

1. Ensure that the remote controller is connected to the aircraft and the mobile device has

access to the Internet.

2. Go to Mission Page in DJI GS Pro, tap the icon or RTK on top of the screen to go to the

RTK settings menu, and then select Network RTK Account as the RTK data source.

3. Tap New in the Network RTK Account setting page. After configuration, go back to the

settings menu to select the added account.

4. Enable the aircraft RTK at the bottom of the menu to ensure the aircraft has access to RTK data.

5. Tap Connect to establish connection with the server. Wait for the RTK icon to display FIX, indicating

that the dierential data calculation is completed and the aircraft can use RTK for positioning.

Vision System and Infrared Sensing System

The main components of the Vision System are located on the front, rear and bottom of the

aircraft, including [1] [2] [4] three stereo vision sensors and [3] two ultrasonic sensors. The Vision

System uses ultrasound and image data to help the aircraft maintain its current position, enabling

precision hovering indoors or in environments where a GNSS signal is not available. The Vision

System constantly scans for obstacles, allowing the aircraft to avoid them by going over, around,

or hovering.

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Dji P4 MULTISPECTRAL Fly Camera