Set as Homepage - Add to Favorites

日韩欧美成人一区二区三区免费-日韩欧美成人免费中文字幕-日韩欧美成人免费观看-日韩欧美成人免-日韩欧美不卡一区-日韩欧美爱情中文字幕在线

【порнография юные кореянки】Drones that hunt screaming humans just want to help

Scientists are порнография юные кореянкиtraining drones to hunt people down by following the sound of their screaming.

Yes, it does sound like the beginnings of a Terminator/Quiet Place-style dystopia, but it isn't meant that way. Rather, these drones are intended to save lives.

Researchers from Germany's Fraunhofer Institute for Communication, Information Processing and Ergonomics (Fraunhofer FKIE) are developing scream-seeking drones to help rescue workers quickly find people who are trapped or injured in emergency situations. Mounting an array of microphones onto a drone, the researchers can hone in on screams by using processing techniques such as beamforming, which enables the microphones to detect which of them is closest to a sound and then hone in on it.

SEE ALSO: Parrot launches $7,000 drone for thermal surveillance, search-and-rescue missions

Speaking to Mashable via email, researcher Macarena Varela explained that she and colleagues Wulf-Dieter Wirth and Manfred Okum previously developed a similar system in 2016, but it had been too big and heavy to mount on a drone.

"In 2018, Dr Wirth was convinced that we could use MEMS [microelectromechanical system] microphones instead of the traditional condenser microphones, making the system much smaller," said Varela. "This was the beginning of our dream to be able to mount it on a drone for the purpose of SAR (Search and Rescue)."

The research was presented at the Acoustical Society of America's 180th meeting in June.

An image of a drone.If a person screams in a forest and there's no one around, this drone may hear them anyway. Credit: Macarena Varela

The researchers' system currently utilises 32 microphones in its array, though Varela notes they haven't yet experimented to find the minimum number it could use while still being effective. Even so, they consider that more is better in this case.

"Since MEMS microphones are so small and affordable, we are planning to double the amount of microphones in the near future instead of reducing them," said Varela.

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

Increasing the number of microphones will allow researchers to more accurately estimate the angle of sounds they detect, as well as pick up audio that is further away. This will enable the drone to determine the location of the victim with increased precision.

"Ideally, to use beamforming techniques, it is practical to use an array of identical microphones delivering synchronous data," said Varela. "We opted for a very particular array called Crow’s Nest, where all microphones are randomly positioned in a sphere. This type of array provides sound coverage in every direction and [is] equally good in all directions."

"The data from all microphones is combined, after adding delays or phases to it, in order to achieve the maximum sensitivity for a selected direction, and thus forming a sensitivity beam," continued Varela. "Then, by varying or scanning the direction, the search for sound sources is achieved."

SEE ALSO: A new lifesaving drone just rescued two swimmers in 70 seconds

The researchers use the monopulse radar technique to establish the exact angle of the sound. This technique compares at least two simultaneous beams received from slightly different directions, determining which signal is stronger to detect the position of a target.

Valera and her colleagues are currently developing and testing filtering methods in order to reduce noise such as the sound of the drone's rotor. At the same time, they are also experimenting with various detection methods for picking up the sound of people in distress, including AI and neural networks. For both purposes, Fraunhofer FKIE's researchers are using an audio database which includes "impulsive sounds…. that victims may produce, such as tapping, clapping and screaming."

"In previous tests in the lab, we were able to detect impulsive sounds, such as clapping, having rotor noises present," said Varela. "We are currently processing the data with the drone flying."

Varela provided Mashable with video demonstrating their ongoing research.

Drones are already used in search and rescue efforts, capable of reaching areas that are difficult to access as well as covering a lot of ground much more quickly than humans or dogs. However, such efforts typically rely on a human monitoring a camera mounted on a drone. Locating victims of a disaster quickly is often critical to their survival, so any technology that helps first responders find them is useful.

It may be some time before we see this system in action, though. Varela says that it "depends on how many hours [she and her colleagues] can work on it." Testing is still ongoing, and the researchers haven't had any concrete deadlines. Still, they believe the system has significant potential.

"A big part of the work is to now transfer the methods already implemented on the big system to this smaller one," said Varela. "Nevertheless, we also face new challenges, such as the drone noise while flying. In other words, we have the expertise in our team, so it’s a matter of time."

Topics Drones

0.1599s , 9827 kb

Copyright © 2025 Powered by 【порнография юные кореянки】Drones that hunt screaming humans just want to help,Public Opinion Flash  

Sitemap

Top 主站蜘蛛池模板: 成人精品视频一区二区三区 | 日韩人妻无码 | 欧美日韩国产在线观看不卡高清 | 亚洲欧美国产日本 | 99精产国品一二三产区区 | 午夜视频一区二区三区 | 久久中文字幕伊人 | 老司机午夜精品视频观看 | 无码a√毛片一区二区三区视免 | 亚洲AV综合色情区一区 | 黄毛片在线观看 | 国产精品成人永久在线 | 国产成人片一级毛片真人特黄a一级片 | 亚洲产国偷V产偷V自拍色情 | 久久五月天国产片 | 人妻夜夜爽天天爽三区麻豆av网站 | 日日碰狠狠躁久久躁综合网 | 亚洲精品久久无码午夜小说 | 麻豆出品必是精品 | av网站在线嫩草影院 | 国产一卡2卡3卡4卡网站 | 91麻豆免费观看 | 国产精品三级美女网站全黄真人一级毛片 | 国产精品白浆流出视频 | 国产精品无码护士在线观看 | 久久国产加勒比精品 | 久久久91精品国产一区二区 | 欧美一区二区三区婷婷月色 | 国产成人无码精品久久久小说 | 波多野结衣美乳人妻hd电影欧美 | 欧美日韩国产亚洲一区二区 | 久久无码潮喷A片无码高潮 久久无码潮喷A片无码高潮动漫 | 精品一线二线三线精华液 | 丰满少妇av一区二区三区黑人 | 日韩欧美国产中文字幕 | 亚洲免费高清视频 | 一本久道久久综合狠狠爱 | 日本护士水多 | 97国产露脸精品国产麻豆 | 欧美亚洲综合在线观看 | 亚洲爆乳无码一区二区三区 |