When a person goes overboard, finding her or him quickly is crucial in order to have a chance of rescuing the shipwrecked person. With the SEERAD project, Fraunhofer FHR is joining forces with FH Aachen and Raytheon Anschütz GmbH to develop a new sea rescue radar that is not only capable of reliably locating individual persons or small boats over long distances but also cheaper than the current systems. With this system, small transponders located in life jackets, for instance, will reflect the signals of future maritime radars, which then receive these signals using an extension module. The scientists will present SEERAD SMM trade fair in Hamburg (hall B6, booth 319) from Sept. 4-7, 2018.
Especially the high costs of commercially available radio and position finding systems, amounting to more than 300 euros per person, have prevented these systems from gaining widespread acceptance. Instead of being carried by each crew member, individual devices that can be thrown after a man overboard are spread out across the ship.
Next generation of maritime radars: The harmonic radar SEERAD is designed to detect tags in life jackets in the future to reliably locate shipwrecked persons
This leads to one requirement: The accident must be noticed immediately. And even then, reaction times, long breaking and turnaround distances, and the different drifts of people and rescue devices can make it impossible to find the missing person. This difficulty increases on large container vessels with small crews, where missing persons are often only noticed when it is far too late, for example during shift changes or meals.
With the SEERAD project, which is funded by the German Federal Ministry of Education and Research (BMBF), Fraunhofer FHR, FH Aachen, and Raytheon Anschütz GmbH are developing a sea rescue system based on harmonic radar. With conventional maritime radars, it can be difficult or even impossible to detect small objects at sea in increasing swells because their reflections can barely be distinguished from the uneven surface of the water.
For this reason, the project partners are counting on transponders the size of a bank card (tags) which – integrated into life jackets, safety devices, or water sports equipment – return the signal of the maritime radar with twice its frequency. An extension of future maritime radars with a harmonic radar module that sends signals in the S-band and also receives them with twice the frequency in the C-band is capable of clearly registering these reflected signals to reliably locate a person who has fallen into the water.
The system’s range will reach up to one kilometer using passive reflectors only (without battery) and up to significantly more than ten kilometers using active transponders powered by a water-activated battery. These tags can be produced at prices of less than ten euros per piece. The tag’s compact size and its low price will allow for large-scale use, with each person on board being able to carry such a tag at all times. Thus, the radar system has the potential to become a widespread sea rescue system.
Fraunhofer FHR will exhibit SEERAD at the booth it shares with Fraunhofer Transport Alliance (hall B6, booth 319) at the SMM in Hamburg, Germany, from September 4 - 7, 2018. There, they will also present their work on a new maritime radar with an electronically controlled array antenna, which operates in the S band as well.
This radar system will be capable of accurately identifying and tracking a larger number of objects with smaller dimensions than the current mechanically rotating antennas, while also being significantly more robust. Besides the standard navigation tasks, the radar can also be used in fields such as the surveillance of port facilities, coastal areas, and river sections to make navigation safer.
As one of Europe’s leading research institutes in its field, the Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR conducts extensive research in the area of high frequency and radar technology. Its core research focuses on sensors for precise distance regulation and positioning as well as imaging systems. The applications range from systems for reconnaissance, surveillance, and protection to real-time capable sensors for traffic and navigation as well as quality assurance and non-destructive testing.
Dr.-Ing. Thomas Bertuch | Teamleader Antennas and Frontend Technology | Phone +49 228 9435-560 | firstname.lastname@example.org
Dr.-Ing. Andreas Danklmayer | Speaker Business Unit Traffic | Phone +49 228 9435-582 | email@example.com Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR | Fraunhoferstraße 20 | 53343 Wachtberg, Germany | www.fhr.fraunhofer.de
https://www.fhr.fraunhofer.de/en/press-media/press-releases/SEERAD_SMM_2018_EN.h... Press Release and images in printable quality
Jens Fiege | Fraunhofer-Institut für Hochfrequenzphysik und Radartechnik FHR
Quantum computers by AQT and University of Innsbruck leverage Cirq for quantum algorithm development
16.09.2019 | Universität Innsbruck
Artificial Intelligence speeds up photodynamics simulations
12.09.2019 | University of Vienna
Later during this century, around 2060, a paradigm shift in global energy consumption is expected: we will spend more energy for cooling than for heating....
Researchers from the Department of Atomically Resolved Dynamics of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg, the University of Potsdam (both in Germany) and the University of Toronto (Canada) have pieced together a detailed time-lapse movie revealing all the major steps during the catalytic cycle of an enzyme. Surprisingly, the communication between the protein units is accomplished via a water-network akin to a string telephone. This communication is aligned with a ‘breathing’ motion, that is the expansion and contraction of the protein.
This time-lapse sequence of structures reveals dynamic motions as a fundamental element in the molecular foundations of biology.
Two research teams have succeeded simultaneously in measuring the long-sought Thorium nuclear transition, which enables extremely precise nuclear clocks. TU Wien (Vienna) is part of both teams.
If you want to build the most accurate clock in the world, you need something that "ticks" very fast and extremely precise. In an atomic clock, electrons are...
Researchers from Chalmers University of Technology have demonstrated a detector made from graphene that could revolutionize the sensors used in next-generation space telescopes. The findings were recently published in the scientific journal Nature Astronomy.
Beyond superconductors, there are few materials that can fulfill the requirements needed for making ultra-sensitive and fast terahertz (THz) detectors for...
A supersolid is a state of matter that can be described in simplified terms as being solid and liquid at the same time. In recent years, extensive efforts have been devoted to the detection of this exotic quantum matter. A research team led by Tilman Pfau and Tim Langen at the 5th Institute of Physics of the University of Stuttgart has succeeded in proving experimentally that the long-sought supersolid state of matter exists. The researchers report their results in Nature magazine.
In our everyday lives, we are familiar with matter existing in three different states: solid, liquid, or gas. However, if matter is cooled down to extremely...
10.09.2019 | Event News
04.09.2019 | Event News
29.08.2019 | Event News
16.09.2019 | Life Sciences
16.09.2019 | Materials Sciences
16.09.2019 | Health and Medicine