Gis Mapping Case Study: Utilizing Unmanned Aerial Vehicles for Urban Reality Mapping - A City-scale 3D Modeling Project

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Revolutionizing Reality Mapping: Transforming Dongguan City Gis 3D with DJI's Aerial Mapping Solution

Unleashing the Power of Reality Mapping in China's Megacity

In the realm of reality mapping, where authenticity meets innovation, the applications are boundless. Imagine a world where digital cities, urban planning, traffic management, public safety, and even life planning find their ultimate expression in the "authentic reproduction of the real world." Well, hold on to your aerial seats because City Gis 3D, China, is taking the lead in this futuristic endeavor.

Mapping the Way to the Future: Dongguan's Reality Mapping Success Story

Enter Dongguan, a sprawling mega-city situated in the vibrant core of the Guangdong-Hong Kong-Macao Greater Bay Area. Dongguan's forward-thinking government agencies, including the Dongguan Natural Resources Bureau and the Government Service Gis Mapping Data Management Bureau, joined forces with the Dongguan Geographic Information and Planning Research Center to embark on a groundbreaking project. Their mission? To explore the vast potential of reality mapping and revolutionize urban development.

Unveiling the DJI Dream Team: Industry Partners in Action

No epic project is complete without a star-studded dream team. DJI, a trailblazer in the field of aerial technology, assembled a powerhouse ensemble for this ambitious undertaking. Collaborating with industry partners, such as Shenzhen Wuce Space Information Co., Ltd. and Shenzhen Zhongke Ke Diangeo Information Co., Ltd., DJI set the stage for innovation.

Drones to the Rescue: High-Flying Gis Mapping Data Collection

Armed with the mighty DJI M300 RTK drones, the team took to the skies of Dongguan, capturing data with precision and finesse. These cutting-edge unmanned aerial vehicles ensured accurate and efficient outdoor data collection, while DJI Terra Cluster Edition software came to the rescue for seamless data processing. The result? A treasure trove of high-precision models that set the stage for transformative applications across Dongguan's vast landscape.

Covering Ground and Sky: Area and Drone Deployment

Dongguan's urban expanse, spanning an impressive 2,465 square kilometers, posed unique challenges to the project. To tackle this behemoth of an area, the team deployed 26 drones and utilized oblique photography techniques. With an eagle eye for detail, the drones gathered imagery Gis Mapping data with a resolution of better than 5 cm. In the city's bustling central business district (CBD), close-range photogrammetry stepped in, acquiring high-resolution data with an astounding 2 cm accuracy.

A Meticulous Dance in the Sky: Intelligent Route Planning

Navigating Dongguan's densely populated urban area, where buildings and vehicles vie for space, required meticulous planning. DJI's intelligent route planning algorithms allowed the team to collect data swiftly and safely, soaring above the electromagnetic interferences of a bustling metropolis.

Precision Takes Flight: Outdoor Flight Zones and Overlaps

To ensure Gis Mapping data accuracy in the face of diverse terrain and towering skyscrapers, the team divided Dongguan into nine outdoor flight zones. Each zone received special attention, with flight lines extending into the boundaries to guarantee seamless data quality. By adopting a high overlap rate of 80% along the flight direction and 75% across it, the project achieved exceptional ground resolution. In high-rise areas, the overlap rates soared to 85% along the flight direction and 80% across it, with additional data captured using close-range photogrammetry techniques.

A Bird's-Eye View of Achievement: The Gis Mapping Data Collection Feat

In 2021 alone, the project reached staggering heights—920 flights covering an incredible 23,000 miles, capturing approximately 5 million aerial photographs. The resulting data volume reached a jaw-dropping 80TB. Yet, the team's feat didn't stop there. With the reliable DJI M300 RTK at their side, they accomplished an extraordinary feat—zero flight accidents throughout the 20-day operation period.

DJI Terra Cluster Edition: A World of Rapid Modeling Unveiled

While the field team captured Gis Mapping data, the office team worked their magic, unleashing DJI Terra Cluster Edition software to produce real-world 3D data in record time. To tame the computational beast that is Dongguan's vast region, the team divided it into 156 sub-project zones. This innovative approach enabled efficient modeling based on ground shape, photo quantity, and algorithm capabilities.

Zooming in on Success: Custom Camera Parameters

Bringing together data from multiple cameras can be a challenge, but DJI Terra rises to the occasion. Custom camera parameter support allows users to fine-tune the settings, ensuring accurate aerial triangulation and reconstruction of various camera data. No detail is too small for Dongguan's reality mapping visionaries!

Conquering the Waves: Automated Water Surface Restoration

With Dongguan's abundance of rivers and lakes, water surface modeling became a Herculean task. Enter DJI Terra, armed with intelligent algorithms capable of automatically reconstructing water areas in the output 3D model. This groundbreaking feature significantly reduces post-processing efforts, leaving the team more time to focus on other awe-inspiring mapping feats.

Unlocking the Power of Real-World Gis Mapping 3D Data: DJI Aerial Mapping Solution

The journey through Dongguan's reality mapping adventure reveals endless possibilities. The real-world 3D data produced, from city-wide oblique photography to rural house inventory, provides a technological lifeline for rural house control and governance. Beyond that, the high visual clarity and resolution of this data enable applications in construction, agriculture, and rail transportation. With shared data usage cutting costs and streamlining operations, Dongguan's visionary project is primed for widespread acclaim.


Soaring to New Heights: The Future of Reality Mapping

As the sun sets on Dongguan's revolutionary reality mapping project, it illuminates a path for cities worldwide. The fusion of advanced aerial technology and cutting-edge software has reshaped the very fabric of urban planning, transportation management, and governance. With DJI leading the charge, reality mapping has emerged as the beacon guiding our cities into a future where the line between the real and the digital blurs. Welcome to the enterprise GIS frontier, where imagination and innovation chart the course of progress.


One response

  1. The approximate cost for 26 M300 drones, lenses, batteries, and insurance is over $428,571 USD. Each drone can cover an area of 8 square kilometers per day, totaling 208 square kilometers in a day. If using fixed-wing drones, a set costs around $64,285 USD. With over $428,571 USD, approximately 1 set can be purchased. Each set can cover 40 square kilometers per day, amounting to around 40 square kilometers per day. However, the labor and data processing costs will be significantly reduced. The only drawback is that the utilization rate is not as high as the M300 in the long run.

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