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
New silicon structure opens the gate to quantum computers
12.12.2017 | Princeton University
PhoxTroT: Optical Interconnect Technologies Revolutionized Data Centers and HPC Systems
11.12.2017 | Fraunhofer-Institut für Zuverlässigkeit und Mikrointegration IZM
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
An interdisciplinary group of researchers interfaced individual bacteria with a computer to build a hybrid bio-digital circuit - Study published in Nature Communications
Scientists at the Institute of Science and Technology Austria (IST Austria) have managed to control the behavior of individual bacteria by connecting them to a...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
12.12.2017 | Earth Sciences
12.12.2017 | Power and Electrical Engineering
12.12.2017 | Life Sciences