Environmental
エネルギー
ImpactマネジメントAssessment

Wind風力PowerBird Monitoring System

For use in preliminary and post-study surveys of wind power projects
The bird monitoring system allows 24-hour continuous remote monitoring of birds flying in
the vicinity of wind turbines. It consists of:(1) Bird Track Extraction System(2) Bird Strike Detection System
In offshore wind farm management, this system will play an active role as a method forpost-survey and environmental monitoring.

Managementstation

Monitoring base

AI Bird(under developmentfor commercial use)
(1) Bird Strike Detection System(infrared camera)
Remotemonitoring(2) Bird Track Extraction System(marine radar)

Recorder PC
Detector PC- AI▲Illustration of Bird Monitoring SystemMonitoring onshore and offshore bird strikes
Conventional bird strike surveys for onshore wind power mainly
consist of habitat surveys i.e., visual surveys in the vicinity ofwind turbines, and carcass surveys by tramping the windturbine foundations. On the other hand, surveys of offshore
wind turbines require approaching the wind turbines by boat,
which is less accessible and difficult in strong winds and stormy▲Marine radar

weather, and the carcasses are usually washed away.
Therefore, a bird monitoring system using radar and/or thecombination of camera and AI would allow remote monitoringand solves issues specific to both onshore and offshore windturbines.

▲Infrared camera

Bird Track Extraction System using marine radar
3,500m

2,000mRadar
OffshoreOnshore▲ Example of bird flight trajectories

Two types of marine radar (S-band and Xband) may be used to quantitatively
determine the direction and altitude of birds
in flight. Each radar can observe within aradius of 16 km (horizontal observation)and 2 km (vertical observation) to monitor
constantly the habitat conditions andmigratory routes of birds.
- 24/7 monitoring and nighttime surveys
are possible for long periods and wide-area
offshore observations where visual surveys
are difficult to implement.
- Extraction of flight direction and altitude
from the flight trajectory is possible.
- Quantitative understanding of flight routes
and peak times is reported.

Bird Strike Detection System coupled with infrared cameras and AI
The system monitors and automaticallydetects approaching birds in the vicinity ofwind turbines by capturing videos from an
infrared camera and detecting flying objects
using AI. It provides constant monitoringof bird strike occurrence in offshore
wind farms, where it is difficult to survey
carcasses.
- The use of 24/7 monitoring and nighttime
survey is possible.
- Prompt reporting of bird strike occurrence.
- AI-based automatic detection improves
the efficiency of monitoring operations.
- Re-learning by AI improves accuracy.

▲ AI detects flying objects"AI Bird" identification system (under development for commercial use)
"AI Bird" is the first system in Japan to use AI
to identify specific bird species from footage
captured by 4K cameras. The system canimprove

theaccuracyofidentification

byrepeatedly learning from footage taken at thesame location. In cases where the system has
been verified with the rare bird species; Whitetailed and Steller's sea eagles, the reproduction
rate* was 94%.

*Percentage of images in which the AI correctly detects the target.
〒170-6055

Sunshine
60 Bldg.55F 3-1-1 Higashi-Ikebukuro,
東京都豊島区東池袋3-1-1 サンシャイン60 55F
Toshima-Ku,
Tokyo 170-6055 Japan
事業本部 環境・エネルギー事業部

Tel:
03-5958-8142 Mail:
ke-eigyo_kankyo@jwa.or.jp
Tel.+81-3-5958-8142
Mail:
ke-eigyo_kankyo@jwa.or.jp
2023.04