Major Achievements

Marine environment systems

Environmental monitoring

In order to protect the living environment that surrounds us, and more broadly to protect the global environment, we monitor the health of the seaside natural environment. There are various problems that require monitoring, such as environmental pollutants that flow into the ocean through rivers and air, marine contamination by blue-green algae and red tides that grow in summer, and changes in ecosystems caused by increases in the water temperature around power plants. In recent years, we are also working to measure the amount of CO2 on the ocean surface to help develop measures to prevent global warming.

Major monitoring systems: compact CO2-monitoring drifting buoys and marine climate monitoring buoys

Survey, research and development

Making a plan for offshore construction work requires knowledge of the ocean conditions in areas around the construction site. Data on ocean conditions that has been collected through studies over the years is used for the design of large-scale ocean projects. Traditional radio communication methods used to collect data were restricted in terms of observation points available. However, these restrictions have been overcome by satellite communication systems that are currently used.

Major examples: Kinki Expressway/Ise Bay Expressway/compact drifting buoys (for research on the Kuroshio Current)/Watarase monitoring buoys/ocean data buoys

Accident prevention

Unfortunate accidents occur under various circumstances—ship collisions, tanker accidents, airplane crash accidents at sea, drowning of tourist swimmers (caused by coastal currents and rip currents) and the occurrence of tsunami. In the event of such an accident or a disaster, various government organizations and expert groups, including the Japan Coast Guard, the Japan Maritime Self-defense Forces and the police, will be engaged in life-saving activities. Zeni Lite Buoy has developed a range of devices for accident prevention, such as rescue buoys that can be dropped from airplanes and helicopters to show the locations of evacuees and compact drifting buoys used for the analysis and prediction of coastal currents and rip currents. Using these devices along with GPS technology and satellite communication systems (Orbcomm and Iridium) makes it possible to conduct searches in areas throughout the world.

Major products: rescue buoys/evacuation guide lights