Preventive maintenance of sewer systems : Drone Stereo2

August 19, 2025

Preventive maintenance of wastewater systems is a priority to ensure their proper operation and prevent health risks. Confined environments, such as pipes, tanks or silos, present major challenges for traditional inspections. The drone Stereo2 from Multinnov is emerging as an innovative solution, combining safety, efficiency and economy.

 

 

What is a confined-area drone?

A confined-area drone is a remotely piloted device designed to operate in confined spaces that are difficult to access. Unlike traditional drones, these models are equipped with specific features:

  • Protected structure: A carbon fiber cage or compact design to avoid collisions and protect equipment.
  • Integrated lighting: Powerful LED lighting systems for optimum visibility in the dark.
  • High-resolution cameras: Sensors capable of capturing sharp, detailed images.
  • Advanced navigation systems: Technologies for precise stabilization and assisted navigation.

These drones are used in a variety of sectors, including industry, sanitation, nuclear power and construction, to carry out inspections without exposing operators to risk.

 

 

For which fields of application?

 

Sanitation sector

Sewage networks, such as sewers and treatment plants, are often inaccessible and present risks for technicians. The drone Stereo2 enables visual inspections to be carried out without direct human intervention, reducing the risk of accidents and improving operational efficiency.

Industry

In industrial plants, drones are used to inspect equipment such as tanks, silos and pipes. The Stereo2with its compact design, is ideal for navigating these complex environments and providing accurate data for preventive maintenance.

 

Nuclear

The nuclear sector requires regular inspections to guarantee the safety of installations. Drones enable access to sensitive areas without exposing operators to radiation, ensuring continuous, effective surveillance.

 

 

Why use a drone for confined space inspection?

 

Enhanced safety

The use of drones eliminates the need to send technicians into hazardous environments. This considerably reduces the risk of accidents in confined spaces, such as falls, poisoning or equipment-related injuries.

 

Increased efficiency

Thanks to their agility and advanced navigation systems, drones can cover large areas in a short space of time. As a result, they enable faster and more frequent inspections, facilitating early detection of problems and the planning of interventions.

 

Cost reduction

By replacing manual inspections, drones reduce the costs associated with manpower, special equipment rental and business interruptions. What's more, the data collected enables precise analysis, optimizing maintenance strategies.

 

Data quality

Modern drones are equipped with high-resolution cameras and specialized sensors, providing superior images and video. This data is essential for making accurate diagnoses and informed decisions on infrastructure maintenance.

 

 

Multinnov's Stereo2: an adapted solution

Developed by French company Multinnovthe Stereo2 is an inspection drone designed specifically for confined spaces. With a compact size of less than 40 cm in diameter, it can access confined spaces such as ducts or tanks.

 

Technical specifications

  • 4K camera: for sharp, detailed images, facilitating infrastructure analysis.
  • Adjustable LED lighting: Four LED panels, adjustable by remote control, ensure optimum visibility in the dark.
  • Advanced stabilization: Stabilization system for precise shots, even in turbulent environments.
  • Assisted navigation: technology that facilitates piloting in complex spaces and reduces the risk of human error.

 

Specific applications

The Stereo2 is used for a variety of applications, such as :

  • Sewer system inspection: Check pipe integrity and detect leaks or blockages.
  • Inspection of tanks and silos: Inspection of internal walls for signs of wear or corrosion.
  • Monitoring of wastewater treatment plants: Assessment of equipment condition and identification of maintenance requirements.
  • Inspection of industrial facilities: monitoring infrastructures to ensure smooth operation and prevent breakdowns.

 

 

Preventive maintenance of wastewater systems is essential to ensure their proper operation and prevent health risks. The drone Stereo2 from Multinnov offers an innovative solution, combining safety, efficiency and economy. Thanks to its advanced technical features and adapted design, it enables fast, accurate inspections of confined environments, contributing to optimal infrastructure management.

For industry professionals, investing in Stereo2 represents a strategic choice for modernizing inspection methods, reducing costs and guaranteeing operational safety.