Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Time recording up one's sleeve

02.01.2012
Optimized operations are essential to globally competitive companies. Until now, inspectors have timed procedures, usually manually, in order to organize manual assembly operations efficiently – a method prone to error. A new system records times automatically and cuts costs for companies.

Handling tools, assembling , inserting, joining and bolting parts, painting components, operating equipment – innumerable procedures must be executed before a product can be packaged and shipped. How much time do employees need for individual procedures? How long does manual assembly take?

Industrial manufacturers have to analyze and optimize their employees’ operations continually in order to remain competitive. They must record the times of operations if they wish to analyze the individual procedures. This enables them to identify long handling distances, impractically located components, overly frequent tool changes or irregular and superfluous movements, which waste time and make production processes inefficient.

Until now, every individual movement has usually been timed by someone with a stopwatch or with digital time boards manned by employees. This approach is not really objective, however. It is replete with errors and disadvantageous for everyone involved: The stress factor for employees is extremely high and they might not execute their jobs at their usual speed. For companies, this requires quite a lot of work from staff and thus incurs high costs. There is therefore great need for more precise, automated and cost effective solutions. Contracted by the engineering firm DR. GRUENDLER® in Magdeburg, researchers at the Fraunhofer Institute for Factory Operation and Automation IFF have developed such a system.

Three matchbox-sized sensors integrated in a sleeve record hand and arm movements precisely and measure the start and end of individual actions, e.g. reaching, grasping, setting up, joining, checking or releasing. The interlinked sensor modules are positioned on the upper and lower arm and the hand. Employees merely have to put on the two sleeves. They are snug like a second skin yet comfortable and do not impede the wearer. “The present stopwatch method only allows a process organizer to time five individuals simultaneously, depending on the situation. Our solution makes it possible to record time simultaneously, even at several workplaces, without requiring additional labor. The system’s greater precision and objectivity is crucial,” says Martin Woitag, research manager at the Fraunhofer IFF. Woitag and his team relied on inertial sensors for their solution. They measure the acceleration and angular velocities of arms and hands in the X, Y and Z axes. Unlike other motion tracking systems, such as GPS, the inertial measurement system functions without any other infrastructure. The inertial sensors independently detect objects’ positions in space. “What is more, our solution doesn’t require complex calibration. A tool that teaches in the measuring points directly at the assembly workplace one time is all that is needed,” according to Woitag. A PC application completes the system. The software calculates and reconstructs the motion sequences based on the sensor data. It breaks processes down into motion segments and ascertains the related times.

At present, the sleeves can be used for assembly jobs at sitting workplaces in logistics and manufacturing. In the next stage, the researchers in Magdeburg intend to configure the system to also analyze assembly operations during which workers stand or move around. They additionally plan to use the sensors to detect posture and thus analyze workplace ergonomics.

Martin Woitag | Fraunhofer Research News
Further information:
http://www.fraunhofer.de/en/press/research-news/2012/january/time-recording.html

More articles from Information Technology:

nachricht ‘Time Machine’ heralds new era
25.03.2019 | Technische Universität Dresden

nachricht Open source software helps researchers extract key insights from huge sensor datasets
22.03.2019 | Universität des Saarlandes

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New gene potentially involved in metastasis identified

Gene named after Roman goddess Minerva as immune cells get stuck in the fruit fly’s head

Cancers that display a specific combination of sugars, called T-antigen, are more likely to spread through the body and kill a patient. However, what regulates...

Im Focus: The taming of the light screw

DESY and MPSD scientists create high-order harmonics from solids with controlled polarization states, taking advantage of both crystal symmetry and attosecond electronic dynamics. The newly demonstrated technique might find intriguing applications in petahertz electronics and for spectroscopic studies of novel quantum materials.

The nonlinear process of high-order harmonic generation (HHG) in gases is one of the cornerstones of attosecond science (an attosecond is a billionth of a...

Im Focus: Magnetic micro-boats

Nano- and microtechnology are promising candidates not only for medical applications such as drug delivery but also for the creation of little robots or flexible integrated sensors. Scientists from the Max Planck Institute for Polymer Research (MPI-P) have created magnetic microparticles, with a newly developed method, that could pave the way for building micro-motors or guiding drugs in the human body to a target, like a tumor. The preparation of such structures as well as their remote-control can be regulated using magnetic fields and therefore can find application in an array of domains.

The magnetic properties of a material control how this material responds to the presence of a magnetic field. Iron oxide is the main component of rust but also...

Im Focus: Self-healing coating made of corn starch makes small scratches disappear through heat

Due to the special arrangement of its molecules, a new coating made of corn starch is able to repair small scratches by itself through heat: The cross-linking via ring-shaped molecules makes the material mobile, so that it compensates for the scratches and these disappear again.

Superficial micro-scratches on the car body or on other high-gloss surfaces are harmless, but annoying. Especially in the luxury segment such surfaces are...

Im Focus: Stellar cartography

The Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI) at the Large Binocular Telescope (LBT) in Arizona released its first image of the surface magnetic field of another star. In a paper in the European journal Astronomy & Astrophysics, the PEPSI team presents a Zeeman- Doppler-Image of the surface of the magnetically active star II Pegasi.

A special technique allows astronomers to resolve the surfaces of faraway stars. Those are otherwise only seen as point sources, even in the largest telescopes...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

International Modelica Conference with 330 visitors from 21 countries at OTH Regensburg

11.03.2019 | Event News

Selection Completed: 580 Young Scientists from 88 Countries at the Lindau Nobel Laureate Meeting

01.03.2019 | Event News

LightMAT 2019 – 3rd International Conference on Light Materials – Science and Technology

28.02.2019 | Event News

 
Latest News

Searching for disappeared anti-matter: A successful start to measurements with Belle II

26.03.2019 | Physics and Astronomy

Extremely accurate measurements of atom states for quantum computing

26.03.2019 | Physics and Astronomy

Listening to the quantum vacuum

26.03.2019 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>