Bats, as creatures that live in darkness all year round, almost never collide with any obstacles, no matter how poor the light is. With the advancement of science and technology, people gradually understand the secret: bats can emit and receive ultrasonic waves. In this way, they can determine the location of obstacles and avoid them calmly. In addition to bats, dolphins also have a similar function. However, this ability is not possessed by humans. Therefore, in the dark, we usually need to use light-emitting devices to see the road clearly. But for the blind and visually impaired, they may feel very helpless in any situation. In order to allow the blind to walk like normal people or play a role in many special environments, a scientist at the Karlsruhe Institute of Technology in Germany has developed such a helmet.
At first glance, it seems that there is a circle of cameras around the helmet. But in fact, these are six ultrasonic sensors that can determine the specific location and current distance of obstacles by emitting and receiving ultrasonic waves. It can scan all obstacles within a straight-line distance of several meters and can reach a scanning speed of 50 times per second. As for the reminder method, an elastic wrapping pad is installed on the sensor at the corresponding position, which will gently push the wearer's head to remind them of the distance by the weight of the push, and the heavier the push, the closer it is. Regarding its use, researchers said that it can help the blind walk better. At the same time, it can also help firefighters have better recognition ability when facing fire and disaster smoke, and play a role in some adventures and other uses. |
<<: Eight criteria to help you evaluate the quality of UI design works
>>: The key words in my design: matching
China is a country of etiquette, where we believe...
The first life on Earth to enter space was not a ...
When it comes to creating high likes on Zhihu, th...
Produced by: Science Popularization China Author:...
Judging from the data, Luckin Coffee has been ver...
Author: Cui Xiaobing background Apple's Objec...
Most articles on how to guide users focus on what...
On December 16, the Shanghai Consumer Council rel...
There is less than a month left until the start o...
What does pua mean and what is the difference bet...
In recent years, the mobile development industry ...
Since the US presidential election began on Novem...
The first step is to drag a Button control into t...
Many people may now ask: Can Douyin continue to o...
Cereals are a general term for food crops mainly ...