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Fi4: Inspection Drone for Confined Spaces
Enables safe and efficient inspection and survey of closed spaces such as sewer pipes
- For addressing manpower shortage and safety concerns of manual inspection of sewage lines by human workers.
- For improved operational throughput over the use of traditional slow and expensive crawling robots.
- For addressing those who see a potential operational benefit of using drones but have concerns about the need for a highly skilled pilot or for the potential of a drone creating a blockage.
Fi4, a specialized inspection drone jointly developed by ACSL and NJS, can address these needs.
Capable of stable flight, even in narrow pipes
ACSL Fi4 confined space inspection drone is made of optimal materials, combining a light and strong carbon-fiber core with an outer foam bumper that even enables floatation.
The carbon-fiber core is highly durable, while the outer bumper is made of low-cost foam, allowing for easy replacement of only the parts that are subject to wear and tear. It is also IP55 dustproof and waterproof, making it suitable for inspection of even harsh environments.
Capable of stable flight, even in narrow pipes
Waterproof camera with internal gimbal for crisp images
A waterproof camera with internal gimbal allows for the capture of crisp images of defects such as cracks (left image).
Furthermore, orthogonal photography enables the size of cracks to be precisely measured (right image).
Simple operations and maintenance
The forward-biased propellers allow Fi4 to advance through a pipe, without the need to pitch, for easy operations.
In addition, a smart controller with a dedicated control application simplifies operations while displaying the conditions in the pipe in real time.
The outer bumper is made of foam and can be detached from the core (which contains all internal electronics) for easy repair and rejuvenation
Specifications
| Structure | |
|---|---|
| Length | 610mm |
| Width | 290mm |
| Height (upper side of the body) | 145mm |
| Height (upper side of the camera) | 220mm |
| Weight (including survey camera and battery) | 2.4kg |
| Flight performance | |
|---|---|
| Maximum flight speed | 3 m/s |
| Maximum flight time | About 4 minutes |
| Ingress protection | IP55 |
of made-in-Japan drones
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