Created a screen that allows the blind to read Braille without touch
Source:
To help the blind to recognize the information, more than 150 years ago created the Braille, which is still widely used around the world. It consists of six raised dots on a flat surface with a different arrangement that allows you to display most of the figures for blind people. Some interactive Braille displays allow you to display different text, but they are very expensive and their use is unsafe, as any observer may leak information on the screen. The reading of the written text with your voice is also considered ineffective because it confidenziale. Therefore, scientists are constantly developing new ways to help the blind to interact with the written text.
What is Braille
One such solution was created by engineers from Germany, who were able to adapt the ultrasonic display for displaying the numbers of Braille. The screen creates in the air several zones of ultrasonic waves, and a person close enough to bring him the palm, with the help of the skin to distinguish these waves. As planned by the scientists, such a display can then be set, for example, over the ATM keypad. Now blind people use ATMs with Braille, which is applied to the button input pin, and using voice prompts from the device itself. However, this is not secure: anyone can come close to this person and see what numbers he dials.
How do the blind recognize the numbers
Alternatively, engineers propose to use a developed an ultrasonic display which can be installed on any public devices for the blind. Screen using sound waves simulates a signal that is distinguishable hand, as a result the person feels considerable pressure and vibration at a particular point in space.
As the hand will recognize the characters from the screen
If the symbol is displayed "at a glance" matches a digit, which wants to introduce a blind, he moves his hand below and one touch confirms the input.
the display can be tested with one of the ATMs.
Of Course, to complete the work of the device on the same ATM will require the support of a new type of display and input of information for the blind, but the idea of developing a similar display is already generating interest from many scientists. His only flaw yet — accuracy; blind people recognize the characters, "projected" on their palm, on average, in 85% of cases. This, of course, too much, but now that person can use the regular ATM keypad Braille and accurately enter the necessary figures. Moreover, it will be much faster, but less confidence.
This screen could also be used not only in ATMs and elevators, as engineers want to implement, and just in everyday life of blind people. Is Braille on the surfaces they will be able to read information with the help of ultrasonic waves on his palm. Blind people can't use sight to build their model of the world, they rely on other senses. Therefore, they have exacerbated, in particular, the sense of touch, which allows them to use Braille.
the Symbols that were used in the study
Researchers interviewed 11 people who are blind and asked them to try a new device, and usability, it scored almost 80 points out of 100. Engineers have already created several working prototypes of a new display for the blind, who plan to apply at some ATMs and elevators.
Millions of people around the world suffer from diseases that lead to gradual degeneration of the photosensitive cells in their eyes that eventually lead to the complete blindness. 5 years ago researchers from the University of Bern and Gettingso University have developed a way by which you can deploy, reverse the process, however, since that time, further tests on mice it has not moved.
Now Braille is printed directly on the buttons
Recommended
Can genes create the perfect diet for you?
Diet on genotype can be a way out for many, but it still has a lot of questions Don't know what to do to lose weight? DNA tests promise to help you with this. They will be able to develop the most individual diet, because for this they will use the m...
How many extraterrestrial civilizations can exist nearby?
If aliens exist, why don't we "hear" them? In the 12th episode of Cosmos, which aired on December 14, 1980, co-author and host Carl Sagan introduced viewers to the same equation of astronomer Frank Drake. Using it, he calculated the potential number ...
Why does the most poisonous plant in the world cause severe pain?
The pain caused to humans by the Gimpi-gympie plant can drive him crazy Many people consider Australia a very dangerous place full of poisonous creatures. And this is a perfectly correct idea, because this continent literally wants to kill everyone w...
Related News
As Smoking electronic cigarettes affect your teeth?
abandoning conventional cigarettes, many people first moving to digital alternatives, considering that they are virtually harmless and not threatening to health. However, over the last few years a number of scholars have put this ...
Can a beard to protect from broken jaw?
If at the time of the Neanderthals scalp (and beard in particular) was widely used for heat preservation of a person in the cold, then eventually the beard became rather fashionable accessory than some functional tool. And fashion...
It is proved that swearing helps to better endure the pain
Many often caught myself thinking that in a difficult situation they themselves pulled words, which are called taboo words. Someone swears a little more, some a little less, but hardly anyone after them on foot will put a piano, w...
Is it true that our ancestors killed the Neanderthals?
About 40 thousand years ago on Earth there lived several members of the genus of people. The most numerous of them were our ancestors Homo sapiens and the Neanderthals. To live on the same planet several types of bipedal creatures...
Why might it be dangerous to drink the water?
For hundreds of millions of people around the world groundwater is the main source of fresh water. For example, in many regions of Asia and South America they are used for irrigation of agricultural crops — drought conditions do n...
What elephants lived 300 000 years ago and why they became extinct?
Elephants are the largest land animals on Earth, which reaches a height of 3 metres and a body weight of 6 tons. Throughout the history of our planet there are dozens of species of elephants, however with time left only Savannah a...
As the choice of transport for the movement effect on mortality?
We often say that it is better to just walk on the way to work or school than to travel by private or public transport. It really helps to become more healthy? For those who have not enough time to do sports, walking in the mornin...
TOP 10 syndromes of the person that put scientists in a deadlock
in Addition to autism, depression and schizophrenia in humans, can meet a variety of state and syndromes. For example, some of the people of Japan suffer from so-called "Paris syndrome" — they feel anxious at the sight of the Fren...
How vitamin D affects the risk of death during the coronavirus?
since the topic of coronavirus relevant and interesting to many, will continue to talk about fighting the virus, but from the point of view of science. Daily on TV you can hear the speeches of politicians on the fact that someone ...
In the next 20 years in Alaska waiting for the 300-meter tsunami
It only seems that the water is harmless. All due to the fact that in everyday life we rarely found with the volumes of this substance in excess of the volume of the pool. In reality, the water cube height meter weighs as much as ...
Asperger syndrome: signs, causes and treatment
35 years ago autism was not well understood by scientists, and in this saw a strong need — autism suffered an average of 5 people out of 10 thousand. Subsequently, however, doctors noticed a sharp increase in such diagnoses among ...
What is regolith and why China is flying over the lunar soil
What if I tell you that in competition everyone wants to be first? Of course, this is nothing new. This principle works in every sphere on Earth and in space. This led to the space race between the and the United States, it caused...
Scientists conduct research in the field of gene therapy: how will it affect our body?
Now in the world there is a pronounced cult of the body. It's not so bad, and when you're surrounded by beautiful people — it is always a pleasure. Especially want to reach out to them and that our world becomes a little mor...
As the Neanderthals processed the skin, making it soft and water resistant
Sometimes, after the appearance of news that made some discovery concerning the Neanderthals, it seems we very much underestimated. It is found that they actively demonstrate social skills that proved their ability to handle the m...
Who has the strongest immunity to coronavirus
the more I think about the consequences of the current pandemic with the coronavirus, nautiliaceae thoughts visit me. That's already begun to remove restrictions in connection with the withdrawal, to run, to release people to work...
Can the herpes virus cause Alzheimer's?
Despite the relatively decent level of modern medicine still the disease to cope with that doctors can't fully. One of such diseases is Alzheimer's disease, during which the patient is gradually worsening memory. It is difficult t...
If only nothing to do... In the future it will be possible to lose weight by gene therapy.
Now in the world there is a pronounced cult of the body. It's not so bad, and when you're surrounded by beautiful people — it is always a pleasure. Especially want to reach out to them and that our world becomes a little mor...
Why 45 percent of Americans refuse to wear a protective mask
Not so long ago we talked , or rather of its serious prejudice to the minds of the people. Today I was wondering what percentage of people in the world adhere to recommended antiviral measures. For example, in Russia more recently...
If only nothing to do... Soon it will be possible to lose weight through gene therapy.
Now in the world there is a pronounced cult of the body. It's not so bad, and when you're surrounded by beautiful people — it is always a pleasure. Especially want to reach out to them and that our world becomes a little mor...
Do we have immunity to the new coronavirus?
Sooner or later the country will begin again to let the citizens of other countries once closed the border because of the risk of the spread of coronavirus. But how to prevent a repeat of the epidemic? So far, the countries themse...
Comments (0)
This article has no comment, be the first!