U-INS PLUS is a next-generation inertial navigation system for underwater drones developed by QYSEA. It enables autonomous navigation not only on horizontal planes but also on vertical planes, and allows for maintaining distance from irregular surfaces.

What are the key advancements of U-INS PLUS compared to previous systems like U-INS?

The main advancement is the addition of vertical autonomous navigation capabilities. While U-INS focused on seabed plane navigation, U-INS PLUS extends this to vertical surfaces, offering greater operational flexibility underwater.

How does U-INS PLUS achieve high-precision navigation underwater?

It combines satellite positioning (GNSS) on the water surface for absolute coordinates with an Inertial Measurement Unit (IMU) and an Acoustic Doppler Velocity Log (Q-DVL) underwater. This sensor fusion technology allows for continuous real-time position estimation and correction, even where GNSS signals are unavailable.

Is U-INS PLUS compatible with all QYSEA FIFISH drones?

The U-INS PLUS compatible sensor module features a modular design and can be applied to multiple QYSEA FIFISH series models. For specific compatibility details, it is recommended to consult CFD Sales' press releases or contact their representative.

How easy is it to set up U-INS PLUS?

The system is designed for quick setup, with the article mentioning a 5-minute setup time, allowing for smooth inspections to begin with a minimal crew.

Underwater Drone Maker QYSEA Announces New Generation Underwater Drone Navigation System 'U-INS PLUS' with Vertical Autonomous Navigation Capabilities

Published Mar 31, 2026 12:13 AM ・ Updated Jun 2, 2026 1:01 PM ・ 4 min read ・ Source: PR TIMES

QYSEA announces the 'U-INS Plus' navigation system for underwater drones, enabling autonomous vertical navigation.

CFD Co., Ltd. (President: Koji Mitani, Headquarters: Nagoya City, Aichi Prefecture), the general distributor in Japan, announces that QYSEA has launched the next-generation inertial navigation system for underwater drones, 'U-INS Plus'.

Autonomous navigation and route planning functions, which are commonplace for aerial drones, are now realized underwater.

QYSEA, which pioneered the practical application of autonomous navigation on the seabed plane in 2024 with its proprietary Q-DVL (Acoustic Doppler Velocity Log) and sensor fusion technology, has evolved this system over approximately one year into 'U-INS Plus', which supports autonomous navigation not only on horizontal planes but also on vertical planes.

By combining satellite positioning with sensors, high-precision navigation is possible even underwater. This enables autonomous travel not only horizontally but also vertically, and allows for maintaining distance from irregular wall surfaces.

The sensor module compatible with U-INS PLUS features a modular design that can be applied to multiple QYSEA FIFISH series models.

For detailed information on features and compatibility, please refer to CFD Sales' press releases or contact our representative via the inquiry page.

Combining Satellite Positioning and Sensors Enables High-Precision Navigation Underwater On the water surface, absolute coordinates are obtained via GNSS satellite positioning. After diving, the Q-DVL and IMU sensors continuously estimate and correct the position in real-time. High-precision navigation is now possible even underwater where GNSS signals cannot reach. View Details

Smooth Inspections with Minimal Crew Possible with 5-Minute Setup The lightweight and portable underwater drone 'QYSEA FIFISH' series is

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Source: PR TIMES
Category: News

Underwater Drone Maker QYSEA Announces New Generation Underwater Drone Navigation System 'U-INS PLUS' with Vertical Autonomous Navigation Capabilities

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