Carunda24

12/07/2017

Die NZZ hat das Thema aufgenommen.

Empa-Forschende haben einen Sensor entwickelt, der feinste Bewegungen der Hand misst.

11/07/2017

Für die Vitalfunktionsmessung sind Muskel- und Sehnenbewegungen vor allem Störfaktoren. Können solche Bewegungen charakterisiert werden, können sie im besten Fall eliminiert werden. Auf der anderen Seite werden charakterisierte Bewegungen auch zu Gestiken und können für viele Zwecke genutzt werden.
Wie das aussehen kann, das hat ein Bachelor Student der Berner Fachhochschule Bern in Zusammenarbeit mit uns in seinem Abschlussprojekt eindrücklich demonstriert. Einwandfrei definierbare Signale (skalar und pulsierend) benutzt er zur Steuerung von Drohnen und Robotern. Sogar die Geschwindigkeit kann er mit dem Wi**en der Hand steuern wie das Work in Progress YouTube Video https://www.youtube.com/watch?v=liDSWRy4Hok
zeigt.

Ein ausführlicher Artikel zur Arbeit wurde im jüngsten Quartalsbericht der Empa publiziert:

https://www.empa.ch/web/s604/empaquarterly (S.9) https://www.empa.ch/web/s604/drohnensteuerung

Some results of a bachelor’s project at Bern University of Applied Sciences with regard to gesture control. Novel piezo resistive strain gauge sensor technol...

20/02/2017

Here's how we approached prototyping of our gesture recognition wearable sensor. https://www.carunda24.com/media-news/blog/79-software-and-hardware-for-wearable-sensor-drone-control.html

Our prototyping approach to connecting a wearable sensor to a Parrot minidrone.

10/02/2017

Body dynamics history reads like a Who’s Who in science

Both soft body dynamics and rigid body dynamics studies the movement of systems. As such they are part of classical mechanics. The history of classical mechanics reads like a Who’s Who in science. What occupies us today, occupied already Greek philosophers two thousand years ago. Euclid (300 BCE) provided the first systematic formulation of geometry and laid the foundation for all subsequent advances in physics outlined in his seminal book “Elementa”. Among others he introduced therein the laws for space/room and orientation. With more than thousand editions, this work is considered the most widely printed text after the Bible. Till the advent of the modern age and the ideas of Leonardo Da Vinci, there was an extended period of silence “reported”. René Descartes another multi-talented philosopher found vital bridges between algebraic and geometric ideas and was therefore regarded as the father of analytic geometry. He expanded on the Euclidean space and introduced the so called Cartesian coordinate system. He outlined his ideas in the book “discours de la méthode” (1637/1656). With those concepts, basically any position in a three dimensional space/room could be defined. In the truest sense of words dynamic came into play when Sir Isaac Newton laid out his three laws of motions in another seminal work “Philosophiae Naturalis Principia Mathematica” published in 1687. Widely unnoticed and never the less retrospectively a crucial contribution came from John Smeaton, founder of the Scoiety of Civil Engineers, one hundred years later. In a letter to Sir Joseph Banks titled “New fundamental Experiments upon the Collision of Bodies” (1782) John Smeaton laid out fundamental differences between soft bodies and rigid bodies. At the beginning of the 19th century, Alexander von Humboldt and Carl Friedrich Gauss together with Wilhelm Eduard Weber researched the Earth’s magnetic field and gravity. And the travel goes on. There are still many questions unanswered. In particular with regards to soft body dynamics issues the theoretical framework is still fragile.

03/02/2017

Flying A Parrot Drone With A Wearable Sensor, some details on how we're developing our gesture recognition wrist strap.

https://www.carunda24.com/media-news/blog/78-flying-a-parrot-drone-with-a-wearable-sensor.html

CARUNDA24, Soft Condensed Matter Sensors (SCMS), Body Dynamics

27/01/2017

We just posted a new video on YouTube. See how you can steer a drone just with the soft body signals of a wrist. Novel strain gauge sensors technology allows to not only capture but also translate such signals into commands usable for various applications in different fields.

https://youtu.be/nOx6sEsHFiQ

This technology allows you to enhance your hand communication by another dimenson.

CARUNDA24 - Wearable Sensor Technology, steering your drone with soft body dynamic signals in a natural way. Let your wrist become the natural human-machine ...

23/01/2017

The most relevant search results usually refer to computer graphics, 3D/4D-modelling, motion pictures or similar areas when entering “soft body dynamics” in a search engine. This can make sense when knowing that Allan Barr (CalTec) and some of his fellow colleagues in computer graphics coined this term in order to describe the simulation of realistic human soft body deformations and or fabrics among others back in the mid-eighties of the twentieth century. Interestingly enough, far less search results refer to human, health or medical topics. This comes at a surprise because humans are true soft bodies exhibiting dynamics including asymmetrical deformations. In fact, the body is in constant deformation even if the person rests. One could therefore expect that soft body dynamics must be a central health topic. But either this is not yet the case or there is no consistent way to describe those forms of asymmetrical, slow and micro dynamics in literature. Long term continuous vital signs monitoring without considering soft body dynamics however, is almost impracticable.

23/01/2017

Gibt man in einer Suchmaschine „Soft Body Dynamics“ ein, beziehen sich die meisten Resultate auf Computer Graphics, 3D-/4D-Modellierungen, Kino, Animationen etc. Dies mag darin begründet sein, dass Allan Barr (CalTec) und verschiedene Mitstreiter diesen Begriff für die realistische Simulationen von Weichkörperverformungen des Menschen oder von Materialien für die Film und Computer Graphics Industrien schon in den 80er Jahren besetzten. Was aber erstaunt ist, das die Suche nach „Soft Body Dynamics“ kaum Ergebnisse im Bereich Gesundheit und Medizin ergibt. Denn der Mensch ist ja gerade ein idealtypischer Soft Body (Weichkörper) mit entsprechenden Dynamiken. Der Körper verformt sich ohne Unterbruch, sei dies durch Atmung oder Bewegung ausgelöst. Die Modellierung von solchen Verformungen ist eine Herausforderung, wie viele Arbeiten aus der Computer Animationsindustrie zeigen. Aber wenn die Suchergebnisse ein Massstab sind, so sind diese Dynamiken/Deformationen für die Gesundheits-/Medizinaltechnikindustrie noch nicht gross ein Thema oder werden nicht einheitlich benannt. Ohne Berücksichtigung von solchen Dynamiken ist aber eine kontinuierliche Vitalfunktionsmessung kaum vorstellbar.

09/01/2017

We just published our latest trailer on our YouTube channel, demonstrating an interesting use case. It demonstrates, what Soft Body Dynamics is capable of....

Our Channel is found here - https://www.youtube.com/channel/UCB6W0L5la4KArjds-WVsnUQ

04/01/2017

Auf YouTube haben wir ein erstes Trailer-Video hochgestellt.

Video - https://youtu.be/NSpMVuzy3GE

Channel - https://www.youtube.com/channel/UCB6W0L5la4KArjds-WVsnUQ

Mehr folgt.

"Muskeln und Sehnen verursachen grosse Dynamiken in der Handgelenksregion. Vielfach wird von Noise oder Motion Artefacts gesprochen, wenn diese Signale nur als Rauschen wahrgenommen werden. Wenn aber solche Dynamiken interpretierbar werden, spricht man von Gestik und Gestikkontrolle. Das ist, was wir hier sehen, klar interpretierbare Signale, dank innovativen, neu entwickelten Dehnungssensoren".

Tendons and muscles are causing a lot of "noise" in the wrist area. Novel strain gauge sensor technology allows to capture and interpret such noise. Noise be...

30/12/2016

In particular over Christmas holidays we become aware that we humans are true soft bodies as the shape of our body is changing continuously. Furthermore, inside of our body we are a small power plants, storing and burning energy continuously. As a result, we are in constant motion, although we do not always feel so. We call those motions soft body dynamics. Such motions are usually asymmetric, slow and/or barely visible. When it comes to vital signs monitoring, such dynamics are as important as the usual ones such as walking, manual work or exercises. Why this is the case and how such information can be used for different applications will be shown next year. We all wish you a relaxed remainder of the year and a happy 2017.