NASA's search and rescue agency performed three controlled aircraft crashes at the Langley Research Center to assess the performance of the current emergency positioning launcher (ELT) system and to make recommendations for improvement.
Source: NASA official website
Today's point of view
NASA's numerous aerospace missions are changing the world. Although some achievements may help scientists get the Nobel Prize, but only one team every year to save thousands of lives around the world, this team is NASA search and rescue.
Recently, NASA official website dedicated to the reader about the search and rescue story & mdash; & mdash;
So far has saved the lives of 40,000 people
NASA's search and rescue staff are working hard for every day to work and rescue people in the air, sailing, or other outdoor events.
The search and rescue organization is the main research team of the American Search and Rescue Satellite Assisted Tracking System (SARSAT) and the lead team for the International Search and Rescue Satellite System (Cospas-Sarsat).
Search and rescue satellite systems are complex, including beacons, spacecraft and ground systems need to be carefully calibrated between, in order to effectively carry out collaborative work.
Search and rescue work usually from the beacon, the distress signal transmitted through the satellite. Over the years, ship companies, airlines and even amateur treks have used the emergency beacon locator developed in the 1970s, which is available at almost any outdoor store at affordable prices and has saved four years Many people in danger.
The second generation beacon targets only 100 meters
Now, NASA search and rescue is developing a more effective beacon.
NASA Goddard Space Flight Center search and rescue operations director Lisa & middot; Mazuka said: "Although the current use of the 1970s technology beacon, the target can be locked in the signal issued within 2 km radius, but even In this way, search and rescue work is still quite heavy. & Rdquo;
Ma Zuka said that the second generation of beacons would like to narrow the range to 100 meters in diameter, in order to search from the search and rescue mission out. In such a range, the accuracy of the search will be higher, which can reduce the risk faced by the victims and rescuers, greatly reducing the time required for the search.
The team has tested the prototype of the new beacon since October 2016, and the results show that it can keep the position accuracy within 140 m radius. And the team developed the second generation beacon search and rescue ground station, can be more than 3,000 miles away from the location of the beacon position.
Search and rescue system is a comprehensive speed upgrade
International search and rescue mission will be in the next few years to use the second generation of beacons as a symbol of all kinds of new technologies.
But the Mazurka team is carrying out new R & D projects, including not only new beacon hardware, but also for commercial and general aviation aircraft improved emergency positioning transmitter, and air search UAV.
From 2014 onwards, the NASA search and rescue agency conducted three controlled aircraft crashes at the Langley Research Center in Hampton, Virginia, to assess the performance of the current emergency positioning launch system and to provide improvements.
In February, a report released by the company showed that the improved system could be compatible with smaller, lighter, and more accurate second-generation beacons.
UAV in the search and rescue work promising
In addition to the tracing system, search and rescue team also began to develop new search and rescue operation platform.
"We are doing one thing is to use the new platform to find search and rescue in the puzzled answers. "We are building a prototype based on the second generation of the beacon signal based on the ground signal, and using the UAV system for verification." & Rdquo;
For example, the use of unmanned aerial vehicles to search can reduce the risk of respondents, but also allow the search and rescue agencies to effectively deploy rescue forces. Again, the UAV can determine whether there is a need for a doctor, how many victims, how they are hurt, and so on before the responder arrives.
In addition to the unmanned aerial vehicle and the instrumentation system upgrade, the search and rescue team also with the US Coast Guard to determine what the aircraft can help rescue equipment and strength.
It can be said that from the development of new generation beacons to the comprehensive application of various high-tech systems, NASA's work is working to improve the efficiency and quality of US and global rescue operations.
(Science and Technology Daily, Beijing, May 30)