Inertial systems for precise instrumented buoy monitoring

An instrumented buoy is a floating platform equipped with a variety of sensors used to collect and transmit oceanographic, environmental, and meteorological data. These buoys are typically deployed in oceans, seas, and large bodies of water to monitor conditions such as sea temperature, salinity, wave height, wind speed, and ocean currents. They are fundamental in studying ocean currents, wave dynamics, weather patterns, and environmental changes.

With the integration of cutting-edge technologies, such as inertial navigation systems (INS), instrumented buoys provide accurate and reliable data that supports research, maritime operations, and environmental protection. These buoys are widely used in applications like weather forecasting, climate research, marine traffic monitoring, environmental protection, offshore wind farms and scientific exploration of the oceans.

INS helps monitor the buoy’s motion in real-time, including its heave, pitch, and roll, which are essential for understanding wave dynamics, surface currents, and the buoy’s overall stability (buoyancy) in rough seas.

Home Geospatial Instrumented buoys

Usage of inertial systems in instrumented buoy applications

In applications such as monitoring sea states or measuring oceanographic parameters like water temperature and salinity, the INS ensures that the data collected is correctly correlated with the buoy’s movement.

This enables researchers and marine operators to distinguish between the buoy’s motion and the natural motion of the ocean, resulting in higher accuracy and reliability of data. For example, when measuring wave heights, inertial systems ensure that marine buoy motion due to waves is properly accounted for, leading to better assessments of ocean conditions.

Instrumented buoys equipped with inertial systems are invaluable for environmental monitoring and climate research. INS technology ensures that the data collected over long periods remains consistent, regardless of the buoy’s drifting and movement. Inertial sensors help mitigate the effects of ocean currents and wind, ensuring that the buoy remains stable and that the sensors continue to collect accurate data. This is particularly important in climate studies, where long-term data accuracy is crucial for understanding changes in sea levels, ocean temperatures, and other environmental factors.

Discover our solutions

Buoy real-time data transmission and analysis

One of the key advantages of modern instrumented buoys is their ability to transmit real-time data to research stations, vessels, or command centers. This is made possible through satellite or radio communication systems integrated into the marine buoys.

With the addition of inertial systems, the motion and navigation data of the buoy can also be transmitted alongside environmental and oceanographic data.

This real-time capability allows for immediate analysis, facilitating timely responses to environmental changes, such as detecting tsunamis (with a tsunami buoy system), tracking marine pollution, or monitoring weather conditions.

The real-time nature of this data transmission means that marine researchers, oceanographers, and environmental agencies can have immediate access to critical information, improving decision-making processes and operational planning.

Additionally, the integration of INS ensures that this data is highly accurate, enabling better predictions and assessments of marine and environmental phenomena.

Reduced buoy maintenance and long-term stability

Our inertial systems are known for their durability and low maintenance requirements, which are critical factors in marine operations where buoys may remain deployed for extended periods.
Their long-term stability means that the buoy can continue to deliver high-quality data without frequent calibration or servicing, reducing the overall maintenance costs and operational downtime.
Easily integrate our solutions to achieve real-time motion compensation that is vital for increasing the accuracy of data obtained from buoy sensors.
Our inertial technology adjusts for the buoy’s movements in real-time, keeping the data consistent and shielded from external forces like waves or wind.

Tell us about your project

Our strengths

Our systems combine advanced inertial sensors with GNSS technology to deliver accurate real-time positioning and motion data, even in challenging environments.

Accurate position and motion tracking Precise data on a buoy’s position that are essential for oceanographic studies and environmental monitoring.
Robust performance in marine conditions Designed to withstand extreme weather, waves, and vibrations for reliable operation in challenging maritime environments.
Super low power consumption energy-efficient design to extend operational life in remote deployments with limited power availability.
Easy Integration with marine sensors Integrates seamlessly with oceanographic instruments such as wave sensors, current meters, and weather stations.

Our solutions for instrumented buoy

We provide advanced motion and navigation solutions that are perfectly suited for integration into instrumented buoys. Our high-performance inertial sensors and navigation systems offer precision in detecting and tracking buoy motion, ensuring that data collected from the buoy system is accurate and reliable.

Ellipse N INS Unit Right

Ellipse-N

Ellipse-N is a compact, high-performance single antenna GNSS offering precise centimeter-level positioning and robust navigation.
INS Single Antenna RTK GNSS 0.05 ° Roll & Pitch 0.2 ° Heading
Discover
Ellipse D INS Unit Right

Ellipse-D

Ellipse-D is the smallest Inertial Navigation System with dual-antenna GNSS, offering precise heading and centimeter-level accuracy in any condition.
INS Dual Antenna RTK INS 0.05 ° Roll and Pitch 0.2 ° Heading
Discover
Ekinox Micro INS Unit Right

Ekinox Micro

Ekinox Micro is a compact, high-performance INS with dual-antenna GNSS, delivering unmatched accuracy and reliability in mission-critical applications.
INS Internal GNSS single/dual antenna 0.015 ° Roll and Pitch 0.05 ° Heading
Discover

Download our leaflet

For a deeper understanding of how our inertial solutions can integrate with your instrumented buoy projects, have a look at our product brochures.

Case studies

Our inertial systems have been successfully deployed in a wide range of instrumented buoy projects across the globe. From oceanographic research in the Arctic to real-time environmental monitoring in the Pacific, our solutions have proven their reliability and accuracy under the most challenging conditions.

Chalmers

Formula Student Driverless – Chalmers Team to Choose SBG INS GNSS

Self-driving car

Chalmers Formula Car
Yellowscan

Perfect accuracy and efficiency in LiDAR mapping with Quanta Micro

LiDAR mapping

Yellowscan Chooses Quanta Micro UAV
Leo Drive

Ellipse powers autonomous vehicles innovation

Autonomous vehicles navigation

Leo Drives Test Autonomous Car
Discover all our case studies

They talk about us

Our motion and navigation solutions have been trusted by leading research institutions, marine agencies, and environmental organizations around the world.

We are proud to support oceanographers, climatologists, and maritime professionals in their pursuit of knowledge and environmental protection.

Université Pierre et Marie Curie
“We needed a very rapid and cost-effective solution to measuring directional wave spectra in the ocean.”
University of Waterloo
“Ellipse-D from SBG Systems was easy to use, very accurate, and stable, with a small form factor—all of which were essential for our WATonoTruck development.”
Amir K, Professor and Director
Fraunhofer IOSB
“Autonomous large-scale robots will revolutionize the construction industry in the near future.”

Instrumented buoy applications FAQ

In this section, we address frequent questions and concerns regarding instrumented buoys and their applications.

What is a buoy used for?

A buoy is a floating device primarily used in maritime and water-based environments for several key purposes. Buoys are often placed in specific locations to mark safe passages, channels, or hazardous areas in bodies of water. They guide ships and vessels, helping them avoid dangerous spots like rocks, shallow waters, or wrecks.

 

They are used as anchoring points for vessels. Mooring buoys allow boats to tie up without having to drop anchor, which can be especially useful in areas where anchoring is impractical or damaging to the environment.

 

Instrumented buoys are equipped with sensors to measure environmental conditions like temperature, wave height, wind speed, and atmospheric pressure. These buoys provide valuable data for weather forecasting, climate research, and oceanographic studies.

 

Some buoys act as platforms for collecting and transmitting real-time data from the water or seabed, often used in scientific research, environmental monitoring, and military applications.

 

In commercial fishing, buoys mark the location of traps or nets. They also help in aquaculture, marking the locations of underwater farms.

 

Buoys can also mark designated areas such as no-anchoring zones, no-fishing zones, or swimming areas, helping enforce regulations on the water.

 

In all cases, buoys are critical for ensuring safety, facilitating marine activities, and supporting scientific research.

What is buoyancy?

Buoyancy is the force exerted by a fluid (such as water or air) that opposes the weight of an object submerged in it. It allows objects to float or rise to the surface if their density is less than that of the fluid. Buoyancy occurs because of the difference in pressure exerted on the object’s submerged portions—greater pressure is applied at lower depths, creating an upward force.

The principle of buoyancy is described by Archimedes’ principle, which states that the upward buoyant force on an object is equal to the weight of the fluid displaced by the object. If the buoyant force is greater than the object’s weight, it will float; if it is less, the object will sink. Buoyancy is essential in many fields, from marine engineering (designing ships and submarines) to the functionality of floating devices like buoys.

What are wave measurement sensors?

Wave measurement sensors are essential tools for understanding ocean dynamics and improving safety and efficiency in marine operations. By providing accurate and timely data on wave conditions, they help inform decisions across various sectors, from shipping and navigation to environmental conservation.

 

Wave buoys are floating devices equipped with sensors to measure wave parameters such as height, period, and direction.

 

They typically use accelerometers or gyroscopes to detect wave motion and can transmit real-time data to shore-based facilities for analysis.