This is due to the fact that by attentively tracking the body position of a person sitting in it, the armchair is able to independently fine-tune to it: to slightly change the configuration so that the legs, for example, do not go numb, to warm up or, on the contrary, to slightly cool the back and the seat, to slightly change position of the arms of a chair so that the hands on the keyboard do not get tired. Along with that, the armchair maintains the optimal distance between the eyes and the monitor screen, and it looks after the mouse so that it does not “run away” and the keyboard does not slide aside.
Everyone is familiar with a situation when he/she has to spend a lot of time sitting at the desk. If the lengthy work fully takes up the individual’s attention, some time later the person feels that all the body “aches” as if from physical activity, and the legs simply “go numb”. The explanation to that is rather simple: in a static posture, the load falls on the same muscles and they are overstrained. And the body weight falling on a relatively small area below the back seems excessive within some time, even if both the weight and the area are not big. The tissues in this area get squeezed, blood supply deteriorates – and the brain sends urgent signals: it is necessary to change the body position.
If we are asleep or are not too busy, this is not difficult – a person would simply turn over or change the posture. But what if the person is working? Then it goes either way: we either “listen” to the requirement – and get inevitably distracted, and probably “lose the idea” which can be precious, or we do not get distracted – and thus spoil the health by ourselves.
All these observations, which seem to be lying on the surface, were articulated as follows by one of the designers of the “smart armchair”, orthopedic surgeon Alexy Kosik: “Any static posture, whatever comfortable it is initially, becomes tiresome within some time. If the posture is not changed – it would become unbearable.” The Gravitonus polyfunctional system - the ergonomic armchair – developed by him and his colleagues allows to the solve the problem.
Special imbedded sensors are constantly measuring the local temperature and pressure of parts of the body on the armchair surface. By constantly analyzing this data the embedded on-board computer ensures the feedback – it adapts the armchair to the user. Perhaps, the person did not have time to think that the back, for example, is tired or frozen – the computer has already counted with the help of the sensors that the person needs to give relaxation to tired muscles, and they should be slightly warmed up. As a result, there is no need to get up, stretch oneself, go to fetch the rug or a pullover – as if by magic wand the back of the armchair will slightly change the position and get warmer. Of course, the monitor slope angle and a distance to it would change to the right degree - in extreme case, it will be possible to work even in a lying position, which indeed better promotes not intense mental effort but sleeping.
Certainly, for common users such an armchair is hardly urgent - it will also be inevitably expensive and will require more space than a usual one. For professionals who spend full time at the PC this is yet an unachievable dream – the armchair has been patented, designed but only two copies had been produced. The first copy is at home of one of the developers – the authors are constantly improving it. And the second copy is an excellent example of how important such a construction may be. Not for everybody, but for persons with limited physical abilities. For those, who are so to say chained to the chair by a disease – but not to such a remarkable armchair but to a wheelchair.
In this case, the “smart armchair” allows to solve several problems at once. First, a person feels much more comfortable in such an armchair, and the most serious patients will have no bedsores – by the way, why not develop a similar bed equipped with sensors and a computer for bed-patients? Secondly, by controlling various devices via the computer both in the armchair and all over the house the patient will be able to significantly extend his/her abilities. If the patient operates the computer with the help of a special “mouse” developed by the same authors, which is placed in the patient’s mouth, then it is possible to live a rather full life even without arms, particularly if the Internet is available at home. This is the way the patient lives, who possesses the second of the two existing armchairs.
Nadezda Markina | alfa
Terahertz spectroscopy goes nano
20.10.2017 | Brown University
New software speeds origami structure designs
12.10.2017 | Georgia Institute of Technology
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
20.10.2017 | Information Technology
20.10.2017 | Materials Sciences
20.10.2017 | Interdisciplinary Research