Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Marine Guardian / Buoy

Marine Guardian
Marine Guardian

Marine Guardian is an alarm buoy warns swimmers by holographic projection. This buoy distinguishes creatures and depth under the sea by sonar to keep swimmers away from harm. The propeller on Marine Guardian has four directions and through satellite positioning Marine Guardian will drift on the right place. Furthermore, Marine Guardian tells swimmers once threat is coming. Swimmers can see the projection and know the potential dangerous area far away. On the other hand, it offers information such as water temperature, shark and jelly fish alarm. Additionally, the red alarm will be projected on the sea to prevent swimmers away from deep-sea.


National Taipei University of Tech

National Taipei University of Tech
Taipei, Taiwan

Yu-sheng /Lee,
National Taipei University of Technology

Ming-chen /Chen,
National Taipei University of Technology