EvoLogics | Diver Navigation System

Solution

Diver Navigation System

● The Diver Navigation System by EvoLogics is an innovative solution that enhances underwater missions by providing precise map-based navigation, real-time positioning - with the locations of all team members available to every diver and the surface crew - and text-based communication for professional diver teams.

The system enables seamless interaction between divers and the surface team, as well as among divers themselves - significantly improving situation awareness, operational efficiency, and diver safety.

With its unique combination of map-based mission planning and live diver tracking, two-way text messaging and real-time sharing of geo-referenced points of interest, the Diver Navigation System empowers teams to manage complex underwater tasks with clarity and control. Whether you are conducting sensitive search and rescue operations or detailed salvage and environmental surveys, the system increases mission success and optimizes team coordination below the surface.

The system consists of acoustic diver trackers interfaced with diver displays and an acoustic surface gateway, all managed through the intuitive and user-friendly SiNAPS software platform. This setup ensures accurate positioning and stable communication links - even in noisy or low-visibility environments - making it an essential tool for a wide range of diver operations.

Diver Navigation System

Main Features

The Diver Navigation System combines innovative features that enhance operational flexibility, mission success, and diver safety in challenging underwater environments.

Two scuba divers underwater exploring near coral reefs with bubbles rising above them.

Compatible with various diving gear

Compatible with your diving equipment - tank-mounted or scooter-mounted setups enable quick deployment with compact, diver-friendly hardware for maximum comfort and mobility.

Diver's hand wearing a dive computer wristwatch holding an underwater navigation device displaying distance and location data over coral seabed.

Geo-referenced missions

Set, receive, and share points of interest in absolute geo-coordinates - before or during the mission - and efficiently guide your team through complex underwater environments. Divers can mark points of interest underwater and instantly share them with teammates and the surface crew, ensuring real-time coordination that improves the mission’s outcome.

Digital map showing a coastal area with a marked star and label 'Star', a point labeled 'P1', a blue circular radius around the star, and an arrow pointing northeast from the star.

Real-time position tracking

Continuously track your team with real-time diver positioning, providing accurate updates so surface crews have full situational awareness, helping you manage missions effectively and keep divers safe using EvoLogics’ proven S2C underwater communication protocol.

Close-up of a device screen showing a map interface with GPS coordinates, navigation tools, logbook input, and chat messages.

Two-way text communication

Stay connected with reliable two-way text messaging that keeps you in touch with dive supervision teams and other divers: exchange mission updates, instructions, points of interest and task changes in real time, amplifying both safety and teamwork.

Intuitive user interface

The system features a user-friendly, intuitive interface with individual configuration options and quick access to multiple software settings, enhancing operational efficiency and situational awareness so divers and surface teams can focus on mission priorities.

Scuba diver underwater filming a school of fish with a tablet device near coral reef.

Visual documentation

Capture and share photos during the mission to provide real-time visual documentation of points of interest or important findings.

Laptop on a wooden surface displaying a navigation interface with maps, vessel and target data, and communication logs.

Mission review and analysis

All mission data, including interactions, photos, and observations, is recorded for comprehensive review, post-mission analysis, and easy export for reporting or follow-up planning.

Diver Navigation System

Components

With its modular setup, user-friendly interface, and acoustic compatibility across EvoLogics’ product range, the Diver Navigation System adapts to the specific requirements of each mission and to meet the needs of the professional community.

Diver tracker

The compact, battery-powered unit is based on EvoLogics 18/34 modems. It is mounted directly on the diver’s gear or integrated into the GAVIN scooter for unobstructed acoustic transmission. It continuously tracks the diver’s position and transmits data to the surface buoy in real time. Rugged, lightweight and diver-friendly, it delivers precise positioning and reliable acoustic communication even under challenging conditions.

Close-up of two black mechanical components with smooth and textured surfaces on a white background.

Diver display and stylus

The diver display connects to the diver tracker with a cable. It is a wrist-mounted, quick-release tablet running the intuitive SiNAPS Dive interface. Fully functional down to 150 m deep, it shows the mission map, positions of other divers and vessels, points of interest and chat messages, while also enabling divers to capture and share photos during the mission. Operated with a stylus designed specifically for underwater use, the display allows precise interaction with the interface, making it easy to select elements and respond promptly to incoming messages or task updates.

Digital dive navigation device with touchscreen display, separate black sensor module, and a small probe on a white background.

Surface node - the USBL Buoy

The floating USBL Buoy is the central surface node for acoustic positioning and mission management. A compact, all-in-one battery-powered unit with a USBL antenna, GNSS and SiNAPS software running on its onboard PC, it keeps the underwater team connected and tracked in real time. Ready for immediate deployment from vessels or fixed stations, it provides reliable mission data and ensures smooth coordination between divers and surface teams.

Yellow and black oceanographic instrument with two extended arms and antennas against a white background.

Mobile Surface node - Sonobot 5 USV with USBL

The Sonobot 5 unmanned surface vehicle equipped with a USBL arm is a mobile alternative to the stationary buoy. Operating as a surface node, it can actively follow diver teams, keeping them within optimal range for positioning and communication. Like the buoy, it integrates a USBL antenna, GNSS and onboard PC running EvoLogics’ SiNAPS software, providing real-time tracking, mission control and data exchange. By combining these functions with the mobility of an autonomous surface drone, the Sonobot ensures continuous coverage and extends operational flexibility for diver missions.

Autonomous aquatic drone with dual black pontoons, green central body, antennas, and a front camera.

SiNAPS positioning software

The SiNAPS positioning software serves as the mission control platform for surface teams, displaying live diver positions, managing points of interest, and enabling two-way messaging. Supporting real-time data exchange between multiple divers and surface crew, it creates a shared situational awareness environment for all participants. By providing the surface team with a clear, real-time view of the mission area, SiNAPS helps to coordinate tasks, respond instantly to changing conditions, and maintain full operational control. SiNAPS can be opened in any modern web browser on devices within the local network of the USBL Buoy and used on multiple screens at once for shared mission oversight.

Laptop displaying a navigation software interface with a map, device and vessel data panels, and targeting information.

SiNAPS Dive software

The SiNAPS Dive software is optimized specifically for diver displays. Its clean, intuitive and user-friendly interface clearly highlights essential mission data, enabling divers to interact quickly and efficiently by using a stylus. The software ensures that all divers share and see the same live data as the surface team, enabling perfectly synchronized actions underwater. Designed to enhance navigation and communication during underwater missions, SiNAPS Dive provides real-time tracking of diver positions, mission details, and points of interest. Divers use the display to manage mission settings, monitor tracking data, capture photos, and communicate seamlessly with team members.

Gloved hands operating a Scubapro dive computer showing 3.5 meters depth and navigation info.

Diver Navigation System

Configuration Options

The Diver Navigation System is available in two setup configurations, tailored to different mission profiles: standard dives or operations with dive propulsion vehicles.

[01]

Tank Mount Configuration

In this setup, the acoustic modem unit is attached to the diver’s scuba tank, while the display is worn on the diver’s wrist. This arrangement offers excellent flexibility and mobility during missions, making it ideal for standard diving operations where ease of movement and quick interaction with the diver display are crucial. Divers can effortlessly monitor mission data and communicate while maintaining full control over their equipment.

Close-up of a black scuba diving tank secured with straps and attached to a black diving device.

[02]

Scooter Configuration

The Diver Navigation System is available fully integrated with the GAVIN NT Scooter (40V) for missions that require extended range and high maneuverability offered by dive propulsion vehicles. The acoustic modem tracker is built into the scooter directly, and the display is securely mounted on the vehicle, keeping all components firmly in place. The integrated modem does not affect the scooter’s performance, making this configuration ideal for extended-range operations, rapid transit to remote sites, and conserving diver energy during long or physically demanding missions.

Black underwater scooter with propeller, mounted digital display, and warning labels on carbon fiber body.

Diver Navigation System

Technical Specifications

Encrypted acoustic communication

Range up to 1.5 km

Acoustic frequency

18-34 kHz

Positioning

Positioning in absolute geo-coordinates

Slant range accuracy

+/- 10 cm

Battery duration

Up to 8 hours

Dive depth

Tank mount configuration: 150 m
Scooter mount configuration: 100 m

Simultaneous tracking

Up to 5 divers

Messaging

Up to 100 divers

Diver Navigation System

Applications

From urgent response operations to routine monitoring tasks, the system supports a wide range of underwater missions and improves execution across different industries.

Scuba diver underwater wearing full gear and looking at a smartphone displaying a navigation map.

Search operations

Real-time tracking and messaging improve response time, coordination, and diver safety during complex underwater missions. All diving team members can view live diver positions in SiNAPS and exchange instructions, photos and points of interest in real time.

Hands typing on a Getac laptop displaying a navigation map interface on a wooden surface.

Salvage and recovery missions

Coordinate complex underwater recoveries with shared situational awareness and mission-based management of points of interest. Found objects or waypoints can be marked with precise geo-coordinates, documented in real time, and instantly shared with all divers and surface crews.

Scuba diver underwater near a swimming sea turtle above rocky ocean floor.

Environmental and habitat monitoring

Navigate sensitive underwater environments with minimal disruption to marine ecosystems. Accurate diver positioning and silent acoustic communication reduce unnecessary movement and minimize environmental impact.

Two scuba divers underwater near a floating platform, one holding a device while the other is kneeling on the sea floor.

Inspection and maintenance of underwater infrastructure

Optimize maintenance workflows and reduce downtime through accurate diver navigation and efficient task management. Structured task execution is supported through waypoint management, photos and real-time diver tracking, while predefined or free-form text messages enable fast and targeted coordination.

Scuba diver underwater using a handheld device near coral and rocky formations.

Environmental cleanup and debris removal

Coordinate underwater cleanup with precise diver positioning, real-time updates, and optimal area coverage, minimizing effort while maximizing efficiency. Document findings with photos and geo-referenced points of interest to track progress and monitor key areas.

Diver Navigation System

Diver Navigation System

Main Features

Components

Diver tracker

Diver display and stylus

Surface node - the USBL Buoy

Mobile Surface node - Sonobot 5 USV with USBL

SiNAPS positioning software

SiNAPS Dive software

Configuration Options

Tank Mount Configuration

Scooter Configuration

Technical Specifications

Applications

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