Vision-guided robot systems and Felix Hoppe-Seyler: Difference between pages

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Ernst Felix Immanuel Hoppe-Seyler (December 26, 1825 – August 10, 1895) was a German physiologist and chemist.

Hoppe-Seyler was born in Freyburg an der Unstrut in the Province of Saxony. He originally trained to be a physician in Halle and Leipzig, and received his medical doctorate from Berlin in 1851. Afterwards, he was an assistant to Rudolf Virchow at the Pathological Institute in Berlin. Hoppe-Seyler preferred scientific research to medicine, and later held positions in anatomy, applied chemistry, and physiological chemistry in Greifswald, Tübingen and Strasbourg. One of his well-known students was Friedrich Miescher (1844-1895).

His numerous investigations include studies of blood, hemoglobin, pus, bile, milk, and urine. Hoppe-Seyler was the first scientist to describe the optical absorption spectrum of the red blood pigment and its two distinctive absorption bands. He also recognized the binding of oxygen to erythrocytes as a function of hemoglobin, which in turn creates the compound oxyhemoglobin. Hoppe-Seyler was able to obtain hemoglobin in crystalline form, and confirmed that it contained iron.

Hoppe-Seyler also performed studies of chlorophyll, and was able to isolate several different proteins (which he called proteids). He was also the first to purify lecithin and establish its composition. He was one of the founders of biochemistry, physiological chemistry and molecular biology, and his work led to advances in organic chemistry by his pupils and by immunologist Paul Ehrlich. In 1877, he created the magazine Physiological Chemistry. He died in Wasserburg am Bodensee in the Kingdom of Bavaria.

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+'''Ernst Felix Immanuel Hoppe-Seyler''' (December 26, 1825 &ndash; August 10, 1895) was a [[Germany|German]] [[physiologist]] and [[chemist]].
-{{Nolead}}
-== Introduction ==
+Hoppe-Seyler was born in [[Freyburg, Germany|Freyburg an der Unstrut]] in the [[Province of Saxony]]. He originally trained to be a physician in [[University of Halle-Wittenberg|Halle]] and [[University of Leipzig|Leipzig]], and received his medical doctorate from [[Humboldt University of Berlin|Berlin]] in 1851. Afterwards, he was an assistant to [[Rudolf Virchow]] at the [[pathology|Pathological]] Institute in Berlin. Hoppe-Seyler preferred scientific research to medicine, and later held positions in [[anatomy]], applied [[chemistry]], and physiological chemistry in [[University of Greifswald|Greifswald]], [[University of Tübingen|Tübingen]] and [[University of Strasbourg|Strasbourg]]. One of his well-known students was [[Friedrich Miescher]] (1844-1895).
-A Vision Guided Robot System comprises three core systems including robotic system, vision system, and component bulk handling system (hopper or conveyor system). <ref>Zens, Richard. 2006. Vision-guided robot system trims parts. Vision Systems Design, PennWell Corporation (Tulsa, OK), http://www.vision-systems.com/articles/article_display.html?id=261912</ref>
+His numerous investigations include studies of [[blood]], [[hemoglobin]], [[pus]], [[bile]], [[milk]], and [[urine]]. Hoppe-Seyler was the first scientist to describe the optical absorption spectrum of the red blood [[pigment]] and its two distinctive absorption bands. He also recognized the binding of [[oxygen]] to [[erythrocyte]]s as a function of [[hemoglobin]], which in turn creates the compound [[oxyhemoglobin]]. Hoppe-Seyler was able to obtain hemoglobin in crystalline form, and confirmed that it contained [[iron]].
-The vision system determines the position of randomly fed products onto a recycling conveyor system. The vision system and control software gives the robot exact coordinates of the components, which are spread out randomly beneath the camera field of vision, enabling the robot arm(s) to move to a selected component and pick from the conveyor belt. The conveyor, normally, stops under the camera where the position of the parts is determined. If the cycle time is short it is also possible to pick a component without stopping the conveyor. This is achieved by fitting an encoder to the conveyor and tracking the component through the vision software.
+Hoppe-Seyler also performed studies of [[chlorophyll]], and was able to isolate several different [[protein]]s (which he called ''proteids''). He was also the first to purify [[lecithin]] and establish its composition. He was one of the founders of [[biochemistry]], physiological chemistry and [[molecular biology]], and his work led to advances in [[organic chemistry]] by his pupils and by [[immunologist]] [[Paul Ehrlich]].  In 1877, he created the magazine ''Physiological Chemistry''. He died in [[Wasserburg am Bodensee]] in the [[Kingdom of Bavaria]].
-This functionality is usually referred to as vision guided robotics (VGR). It is a fast growing technology and a way to reduce manpower and retain production, especially in countries with high manufacturing overheads and labour costs. <ref>Perks, Andrew. 2004. Vision Guided Robots. Special Handling Systems, UK RNA Automation Ltd, http://www.rna-uk.com/products/specialisthandling/visionguidedrobots.html</ref>
+==External links==
-== Vision systems for robot guidance ==
+* [http://vlp.mpiwg-berlin.mpg.de/people/data?id=per96 Photo, biography, and bibliography] in the Virtual Laboratory of the [[Max Planck Institute for the History of Science]]
-[[Image:Camera close up.jpeg|right|thumb|Camera lens for machine vision]]
+* [http://www.udel.edu/chem/white/teaching/CHEM342/ZinBkgd99.html Chem-342 Introduction to Biochemistry]
-A vision system comprises a camera and microprocessor or computer, with associated software, for example, the robot systems of [http://www.svia.se SVIA Technology].This is very wide definition that can be used to cover many different types of systems which aim to solve a large variety of different tasks. Vision systems can be implemented in virtually any industry for any purpose. It can be used for quality control to check dimensions, angles, colour or surface structure-or for the recognition of an object as used in VGR systems.
+*[http://www.degruyter.de/journals/bc/detailEn.cfm?sel=fe Biography and photos at the website of Biological Chemistry, a journal founded by Felix Hoppe-Seyler]
+{{BD|1825|1895|Hoppe-Seyler, Felix}}
-A camera can be anything from a standard compact camera system with integrated vision processor to more complex laser sensors and high resolution high speed cameras. Combinations of several cameras to build up 3D images of an object are also available.
+[[Category:German chemists]]
+[[Category:German physiologists]]
+[[Category:People from the Province of Saxony]]
+[[Category:University of Halle-Wittenberg alumni]]
+[[Category:University of Leipzig alumni]]
+[[Category:Humboldt University of Berlin alumni]]
+[[Category:Humboldt University of Berlin faculty]]
+[[Category:University of Greifswald faculty]]
+[[Category:University of Tübingen faculty]]
+[[Category:University of Strasbourg faculty]]
+{{chemist-stub}}
-== Limitations of a vision system ==
-There are always difficulties of integrated vision system to match the camera with the set expectations of the system, in most cases this is caused by lack of knowledge on behalf of the integrator or machine builder. Many vision systems can be applied successfully to virtually any production activity, as long as the user knows exactly how to set-up system parameters. This set-up, however, requires a large amount of knowledge by the integrator and the amount of possibilities can make the solution complex. Lighting in industrial environments can be another major downfall of many vision systems.
+[[de:Felix Hoppe-Seyler]]
-== VGR systems Benefits ==
+[[fr:Felix Hoppe-Seyler]]
-Traditional automation means serial production with large batch sizes and limited flexibility. Complete automation lines are usually built up around a single product or possibly a small family of similar products that can run in the same production line. If a component is changed or if a complete new product is introduced, this usually causes large changes in the automation process-in most cases new component fixtures are required with time consuming set up procedures. If components are delivered to the process by traditional hoppers ad vibratory feeders, new bowl feeder tooling or additional bowl feeder tops are required. It may be that different product must be manufactured on the same process line, the cost for pallets, fixtures and bowl feeders can often be a large part of the investment. Other areas to be considered are space constraints, storage of change parts, spare components, and changeover time between products.
+[[pt:Felix Hoppe-Seyler]]
+[[sk:Ernst Felix Immanuel Hoppe-Seyler]]
-VGR systems can run side-by-side with very little mechanical set up, in the most extreme cases a gripper change is the only requirement, and the need to position components to set pick-up position is eliminated. With its vision system and control software, it is possible for the VGR system to handle different types of components. Parts with various geometry, can be fed in any random orientation to the system and be picked and placed without any mechanical changes to the machine, resulting in quick changeover times. Other features and benefits of VGR system are<ref>Perks, Andrew. 2006. Advanced vision guided robotics provide 'future-proof' flexible automation. Assembly Automation, Vol.26 No.3, Emerald (Brandford), p216-217</ref>:
-* Switching between products and batch runs is software controlled and very fast, with no mechanical adjustments.
-* High residual value, even if production is changed.
-* Short lead times, and short payback periods
-* High machinery efficiency, reliability, and flexibility
-* Possibility to integrate a majority of secondary operations such as deburring, clean blowing, washing, measuring and so on.
-* Reduces manual work
-== See also ==
-* [[RNA Automation]]
-* [[Adept Technology]]
-* [[Machine vision]]
-== External links ==
-* [http://www.youtube.com/watch?v=-87IblBH2Gc KUKA Robot - Automotive Vision Guided Sealant (video)] Visual seam and edge following.  Has pictures from robot camera point of view.
-* [http://www.youtube.com/watch?v=9KQmJo-WYf8 RNA Automation vision guided robot MiniFlex Coating (video)]
-* [http://www.youtube.com/watch?v=bvtkjyOtrNo Vision guided robots MiniFlex part1 (video)]
-== References ==
-{{Refimprove|date=October 2008}}
-{{Reflist}}
-[[Category:Industrial robots]]