What are the shortcomings of drones in practical surveying and mapping applications? How can we respond

Phantom 4 RTK

See everything at a glance

Phantom 4 RTK is a small multi-rotor high-precision aerial survey drone, designed for low-altitude photography Measurement application, equipped with centimeter-level navigation and positioning system and high-performance imaging system, portable and easy to use, comprehensively improving aerial survey efficiency.

A new era of aerial survey

The system has been fully upgraded, raising the accuracy of aerial survey to a new standard and bringing centimeter-level accurate data to users. At the same time, the ground control points required in traditional aerial surveys are significantly reduced, simplifying the operation process and reducing time costs.

1cm+1ppm

RTK horizontal positioning accuracy

1.5cm+1ppm

RTK vertical positioning accuracy

5cm*

Absolute horizontal accuracy of planar mapping

*Flying in a sunny environment, wind speed less than 4 m/s, flight altitude 100 meters, ground sampling distance (GSD) 2.74 cm, heading The overlap rate is 80% and the side overlap rate is 70%.

Centimeter-level positioning system

Phantom 4 RTK integrates a new RTK module, which has stronger anti-magnetic interference capabilities and precise positioning capabilities, provides real-time centimeter-level positioning data, and significantly improves images. Absolute accuracy of metadata. Supports PPK post-processing. The aircraft continuously records raw satellite observations, camera exposure files and other data. After the operation is completed, users can directly calculate high-precision position information through the DJI Cloud PPK service. The positioning system supports connection to the D-RTK 2 high-precision GNSS mobile station and can be connected to NTRIP via a 4G wireless network card or WiFi hotspot.

TimeSync precise data collection

To cooperate with the Phantom 4 RTK positioning module, the new TimeSync system came into being. Achieve microsecond-level synchronization of the flight control, camera and RTK clock systems, and achieve millisecond-level error in camera imaging time. Compensate the optical center position of the camera lens and the RTK antenna center point position to reduce the time error between the position information and the camera, and provide more accurate position information for the image.

High-precision imaging

1-inch 20-megapixel CMOS sensor captures high-definition images. The mechanical shutter supports high-speed flight shooting, eliminating the jelly effect and effectively avoiding the reduction of mapping accuracy. With high-resolution imagery, the Phantom 4 RTK has a ground sampling distance (GSD) of up to 2.74 cm at a flight altitude of 100 meters. Each camera lens undergoes rigorous process correction to ensure high-precision imaging. Distortion data is stored in the metadata of each photo, allowing users to make targeted adjustments using post-processing software.

Born for aerial surveying

Phantom 4 RTK is fully optimized for aerial photogrammetry. Image control-free technology brings surveying and mapping-level accuracy results, achieving an overall improvement in efficiency and accuracy.

Professional route planning application

The screen remote controller has a built-in new GS RTK App to help users intelligently control the Phantom 4 RTK to collect data. The GS RTK App provides multiple route planning modes such as waypoint flight, flight strip flight, photogrammetry 2D, photogrammetry 3D, ground simulation flight, large area segmentation, etc. It also supports KML/KMZ file import and is suitable for different aerial survey application scenarios. ?The screen remote control integrates a 5.5-inch 1080p high-brightness display, which can still clearly display operations in strong light environments.

Develop exclusive applications

The SDK remote control can be directly connected to your Android or iOS mobile device to run applications such as DJI Pilot and GS Pro Ground Station Professional Edition. Users can also develop third-party applications through DJI Mobile SDK to create customized solutions based on business characteristics, allowing the Phantom 4 RTK to be closely integrated with the operating scenario.

OcuSync image transmission system

The OcuSync image transmission system is stable and reliable, providing high-definition image transmission up to 7 kilometers away, easily handling large-scale surveying and mapping tasks.

*FCC standard, measured in an open outdoor environment without interference. The maximum flight distance depends on the strength and stability of the image transmission signal. Unless authorized, always fly within visual range.

Seamlessly compatible with D-RTK 2 high-precision GNSS mobile station

Supports use with D-RTK 2 high-precision GNSS mobile station to obtain real-time differential data. The handheld D-RTK 2 mobile station can also perform point measurements, collecting accurate coordinates of target points.