Japan Kyocera Nagasaki Tender

Nagasaki University President Shigeru Kohno and Kyocera Corporation President Hideo Tanimoto announced their joint development of an Energy Harvesting Smart Buoy which combines Nagasaki Universitys tidal current power generation technology with Kyoceras IoT technology to collect reliable ocean data. Prototype buoys can collect a wide range of data on the marine environment using self-generated energy. A pilot program gathered information from 21 sensors monitoring everything from water temperature and humidity to current direction. Future development may include sensors for temperature-related salinity variation chlorophyll turbidity and temperature-related variations in dissolved oxygen concentrations to name a few.Development BackgroundMarine pollution and climate change have become serious societal issues. To solve these issues and help create a more sustainable world scientists need more reliable ways to monitor and visualize various sea conditions. However maintaining a stable power supply is a big challenge for continuous data collection at sea. Therefore Nagasaki University and Kyocera developed the Energy Harvesting Smart Buoy which generates its own electric power for continuous ocean data collection using a tidal-current power generation system in the buoy. The new Smart Buoy combines tidal-current power generation technology from Nagasaki University and IoT-related technology from Kyocera. In addition Kyocera has future plans to monitor fisheries and aquaculture conduct ocean surveys and more.Outline of the PrototypesA buoy equipped with a tidal-current power generation system supplies power to the Kyocera GPS multi-unit and connected sensors1. The GPS multi-unit is a compact Kyocera IoT device equipped with various sensors and antennas compatible with GPS GLONASS and Michibiki2 location tracking systems.Each prototype is equipped with two different tidal-current power generation systemsSLTT Small Lens-type Tidal Turbines - The buoy and power generation are separate and a diffuser is installed around the turbine. In addition to protecting the turbine the diffuser has the effect of increasing the flow of water for better power generation.VTT Vertical-axis Tidal Turbines - The power generation element is directly connected to the buoy. Its AI-guided design incorporates a tilted axis to optimize turbine rotation amid heavy ocean swells and waves.Pilot Test Results in SeaNagasaki University and Kyocera conducted a pilot test for nine days during spring tide to low tide in the tidal cycle. The test used 21 sensors to collect data which was then transmitted to the cloud including acceleration temperature and humidity using geomagnetic sensors inside the buoy water temperature flow velocity current direction battery current and voltage using an external electric current sensorFuture InitiativesTo promote ongoing ocean monitoring the companies are planning to support a water temperature-salinity sensor temperature salinity and electrical conductivity chlorophyll turbidity sensor chlorophyll turbidity and water temperature DO sensor dissolved oxygen and water temperature and an underwater camera. Performance and operation will be improved along with a reduction in size and weight in commercial versions. Kyocera will also build an IoT platform to store collected data and ongoing testing will be conducted mainly in Nagasaki Prefecture.