What Is a Drone Cage and Why Does It Matter? Use Cases, Types & Indoor Inspections
Drone cages are essential tools for ensuring safety and functionality in environments where drones might face obstacles or interact with people. This article explores their purpose, different types, and real-world applications.
A drone cage is more than just a protective shell—it serves two critical functions: safeguarding people from the drone’s spinning propellers and protecting the drone itself from damage during collisions. This dual-purpose design makes them indispensable in many scenarios, especially when flying indoors or in tight spaces.
Some drone cages are designed to be attached to commercial drones, while others are built into specialized drones meant for navigating cluttered or confined areas. Understanding the differences between these types can help you choose the right one for your needs.
In this article, we’ll explore the various use cases for drone cages, explain the three main types available, and discuss why they matter for indoor inspections and other industrial applications.
Understanding Drone Cages: What They Are and How They Differ
The term “drone cage†can sometimes be confusing because it refers to two distinct concepts:
- Drone enclosures: These are large structures, often made of netting or wire mesh, used at events like drone races or exhibitions to protect spectators from potential drone accidents.
- Drone cages that attach to the drone: These are lightweight, integrated systems that surround the drone itself, allowing it to withstand collisions while still operating effectively.
When we talk about drone cages in this article, we’re referring to the second type—those that are built into the drone, such as the ones found on Flyability’s Elios 3.
The Origin of Drone Cages: A Story of Innovation and Necessity
While drones have been around for decades, the idea of putting a cage around one came from a very specific and urgent need. After the 2011 tsunami in Japan, the Fukushima nuclear disaster created an environment so dangerous that human entry was impossible. That’s when the concept of using a collision-tolerant drone for inspection was born.
Co-founders Patrick Thévoz and Adrien Briod of Flyability saw the potential for a flying robot that could navigate hazardous environments without risking human lives. This led to the development of the Elios 1, followed by the Elios 2 and Elios 3—drones specifically designed with collision-resistant cages in mind.
Why Use a Drone in Confined Spaces?
Confined spaces like power plants, mines, and sewers are often too dangerous or inaccessible for humans. Drones equipped with cages allow inspectors to collect visual data without putting themselves in harm’s way.
This not only improves safety but also saves time and money. For example, instead of setting up scaffolding for an inspection, companies can simply send a drone inside. This reduces downtime and labor costs significantly.
Where Are Drone Cages Used Today?
Drone cages are now used in a wide range of industries and situations. Some of the most common applications include:
- Inspecting nuclear power plants
- Checking boilers and pressure vessels in the oil and gas industry
- Exploring mines and tunnels
- Assessing burned-out buildings after fires
- Inspecting sewer systems and pipelines
- Maintaining water parks and other infrastructure
These examples show how drone cages are transforming the way we gather visual data in challenging environments.
The Three Main Types of Drone Cages
There are three primary types of drone cages available today, each with its own advantages and limitations:
- Add-on Cages: These are attachments that go onto existing drones. While they offer some protection, they aren’t always ideal for industrial use due to weight, limited collision tolerance, and lack of specialized features.
- Decoupled Cages: Designed for drones like the Elios 1, these cages are separate from the drone body and allow for greater stability during collisions. This makes them perfect for tight spaces.
- Fixed Cages: Found on advanced models like the Elios 2 and Elios 3, fixed cages are part of the drone’s original design. They provide superior durability and performance in high-risk environments.
Key Considerations for Each Type
Each type of drone cage has unique pros and cons. Add-on cages are convenient but may reduce flight time and performance. Decoupled cages offer better stability, but image clarity can be affected. Fixed cages, while more expensive, are the most robust and suited for professional inspections.
Ultimately, the choice depends on the application, environment, and level of risk involved. Whether you're inspecting a boiler or exploring a mine, the right drone cage can make all the difference in safety and efficiency.
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