Effortless High Precision Mapping

DATAhawkPPK

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DATAhawkPPK Drone

The Professional Imaging Platform 

DATAhawk PPK Drone

The DATAhawkPPK - An ultra high-accuracy fixed wing drone package for professional surveyors that need maximum geospatial precision for their customers.

"When flown and processed correctly, this system positions every pixel exactly where it belongs on the earth's surface. It is an incredible achievement."

QuestUAV is renowned for quality and reliability. This new product carries our heritage of testing and verification, ensuring that it fits the stringent attributes that professional surveyors and mappers require.

After almost three years of development, the DATAhawkPPK is now in production and ready for delivery.

DATAhawk PPK Operational Specifications
UAV TypeFixed Wing
Pre-Flight Setup time~5 mins
Endurance In A Single FlightUp to 45 minutes
Average Cruise Speed (Overidable)35 Knots
Max Speed54 Knots
Take-Off Weight2150g
Take-Off TypeHand Launch, Air Dock Launch System, Zip Line
Landing TypeAuto Landing, Belly Landing, Parachute
Landing Space30 x 15m
GSD (@400ft)3.2cm
DATAhawk PPK Product Specifications
Wingspan1160mm
Material of ConstructionEPP (Expanded Polypropylene), Carbon Fibre, Corex, Polypropylene (1.2mm), ABS (1.5mm), Laminate (0.0125mm)
Take-off Weight2150g
Motor TypeAxi 360W Brushless Motor
Propeller Size9x6
Power Source2 x 4000mAh LiPo (Total 8000mAh)
Communication and Control Range
2.4Ghz 2km
Long Range Communication and Control Range868Mhz 20km
Flight Planning and Control Software Included
Image Processing SoftwarePix4DMapper Pro, Agisoft Photoscan or ATLAS.
Carry Case1 Hard Case (975x520x380mm)
Parachute Recovery SystemYes
Radio TrackerAvailable as an Optional Extra
Radio Tracker Specs7.9g, 80km Range, 433MHz/GPS Tracker
Electronic Speed Controller40amp With Thermal and Overload
TransmitterTaranis
ServosMetal Gear (Digital)
Aerial Power10mW with 2.4gHz / 1-315mW with 868Mhz

 DATAhawk PPK
Validated Accuracy Results

The accuracy of the DATAhawk PPK system is validated by comparing the results of repeated aerial surveys with precisely measured verification points (GCPs) - using a total of 30 target points over the 100Ha test site.

This whitepaper contains the results of 37 flights with a verified accuracy as follows:

DATAhawk PPK
X
Y
Z
Absolute RMSE Accuracies
3.1cm
3.3cm
3.9cm

PPK Workflow - The Process

DATAhawk PPK Workflow

The orthomosaic process using Pix4D or Photoscan remains unchanged for the PPK processing. If you can already create an orthomosaic then you can complete the PPK processing with just two extra steps.

The first step involves the geotagging of images with the coordinates (an automated process) and the second requires a transformation from a worldwide coordinate system to the system you use in your country. Both are easy processes and can be included in your training workflow.

Why Choose PPK?

 

Accuracy


The DATAhawk PPK drone produces repeatable, industry leading results. Unlike our competitors, the Datahawk is equipped with a dual-frequency L1/L2 receiver tracking both GPS and GLONASS
signals. 132 hardware channels allow to simultaneously track all visible GPS/GLONASS satellites. The strength of the Datahawk as a large area survey tool.

This system allows the aircraft to fly much further than with an RTK system: after flight camera positions are corrected by combining GNSS recordings of the aircraft with the corresponding information of the reference base station on the ground.

This allows the UAV to be free of the requirement of a separate, high bandwidth, GPS link to a base station. (For a more detailed explanation, see the "Know How" article below).

Support


Built with long service in mind, our drones use only the highest quality processes, the toughest building materials and are backed by "real-life" support personnel. Precision engineering techniques, rigorous testing and off-the- shelf spares ensure your QuestUAV will be ready to fly, even under the toughest conditions.

Training is a key component of PPK success. Our workflows, training suite and qualified staff are ready to take you through both the Datahawk flying training and the PPK workflows.

Safety


Operator Safety, Public Safety, Flight Safety. All drone operations have raised safety standards and QuestUAV is no exception. You can be fully reassured that any QuestUAV comes with a excellent track record for safety, and that training and documentation focus UAV operations on safety in every aspect of flying.

With a ten year history of industry-leading designs, QuestUAV continues to focus on improving redundancy, failsafes and operator awareness. Parachutes, auto landings, virtual fences, passive launch systems are examples of our dedication to better design and training.

The DATAhawkPPK Package

DATAhawk PPK Starter Kit

How To Buy 

Contact sales@questuav.com or call us on +44 (0) 1665 479 042.

Alternatively, contact your nearest reseller for local prices.

Order Now

QuestUAV Know How:
GCP vs PPK vs RTK

 

We often get asked to explain what PPK is in simple words. It is not that easy, but a few pictures make it a lot easier! So here is a short lesson.

 

1. This image below shows a simple flight with a standard fixed wing UAV that has no PPK or RTK on board and is not using any ground control points for accuracy. All it has to provide accuracy is the normal, low grade GPS constellation, that most devices use for global positioning. The result is a geospatial accuracy of 5 metres to 20 metres. No good for a surveyor!!

Normal Flight

2. The image below shows a flight that is backed up with the use of ground control points (GCP's). The GCP's are surveyed to high accuracy and all UAV images that show a GCP are manually adjusted in post processing for best accuracy. The result is high geospatial accuracy (a few cm), but the whole process can take a lot of time, especially in the laying, positioning and lifting of GCP's. The extra time taken can be costly for an operator.

3. The image below shows a flight using RTK (Real Time Kinetics). A high accuracy constellation is used and a positioning signal is beamed to the UAV from the ground. The limitation with RTK comes when this beamed signal is broken through distance or interference. If this happens the whole survey generally needs to be reflown. This method is unsuitable for fixed wing aircraft that, by their very nature, need to fly further from the operator and possibly into BVLOS (Beyond Line of Sight).

4. The image below shows a flight using PPK (Post Processing Kinetics). As with RTK, a high accuracy constellation is used but a positioning signal is NOT needed to be beamed to the UAV. The result is that the UAV can fly as far as needed yet still retain the accuracies provided by the high accuracy GPS/GLONASS constellation. Any inaccuracies are recorded by ground equipment and installed into the post processing workflow. This makes the PPK system the most efficient and reliable method for ultra high accuracy surveying.