Lausanne's Water Department has successfully implemented the Elios 3 to generate detailed 3D maps of its underground infrastructure, enhancing planning, tracking changes over time, and improving maintenance operations. This innovative approach is transforming how the department manages its critical water systems.

Key Benefits at a Glance

Introduction

Lausanne, Switzerland, is known as a hub for innovation, home to institutions like EPFL and numerous tech startups. Among these is Flyability, a local company that developed the Elios 3—a compact drone designed for indoor mapping and inspection. The city's Water Department saw an opportunity to leverage this cutting-edge technology to improve its inspection processes.

As part of a broader initiative to integrate advanced technologies into municipal operations, the Water Department conducted extensive tests with the Elios 3 to evaluate its potential in streamlining maintenance and improving safety during inspections.

Customer Needs

The Water Department is responsible for managing all aspects of the city’s water cycle, including sewage, purification, and storage. Regular inspections of various water-related assets are essential to ensure system integrity and prevent failures.

These assets include wastewater vaults, water tanks, storm spillways, and more. Inspecting them often involves entering dangerous or difficult-to-reach areas, posing significant risks to personnel. The challenge was to find a safer, more efficient way to monitor these structures without compromising data quality or operational efficiency.

Solution

To address these challenges, the Water Department tested the Elios 3 to:

• Generate high-resolution 3D models of internal structures for maintenance and digital twin applications.
• Accurately locate and track defects using 3D mapping for future reference.
• Eliminate the need for manual entry into hazardous environments, thereby improving safety.

Results

Over six months, the Water Department successfully used the Elios 3 for multiple inspections, achieving significant improvements in speed, accuracy, and safety. One notable example was a tank slab inspection, which was completed in half a day instead of five days, saving considerable time and resources.

The Elios 3 also allowed inspectors to conduct remote assessments of storm spillways, avoiding the need to descend into potentially dangerous areas. The 3D models generated provided valuable insights for future maintenance planning.

According to Sébastien Ramelet, a project manager at the Water Department: “The Elios 3’s 3D maps allow us to model any structure we need, whether it's a storm overflow or a drinking water reservoir. Then we can use these maps to conduct simulations, reconstruct a precise plan of the structure as it was built, and track the exact location of defects found in our inspection work.”

Key Benefits

• Indoor 3D Mapping – Provides detailed data for defect tracking and simulation over time.
• Improved Defect Monitoring – Enables precise location tracking and historical data comparison.
• Enhanced Safety – Reduces the need for manual entry into hazardous environments.
• Increased Speed – Dramatically reduces inspection time by eliminating the need for scaffolding and on-site setup.
• User-Friendly – Easy to operate even for those with no prior drone experience.
• High-Quality Data – Captures 4K visual data with full coverage and accurate geolocation.

Conclusion

Following the successful trials, Lausanne’s Water Department has decided to permanently adopt the Elios 3 for its inspection procedures. The technology not only improved operational efficiency but also enhanced safety, making it a valuable addition to their maintenance practices.

As the department continues to use the Elios 3, the 3D models created will serve as a permanent digital record, enabling better long-term monitoring of infrastructure and helping to extend the lifespan of critical assets. This adoption marks a major step forward in the integration of advanced technology into municipal operations.

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