Intelligenter Container http://www.intelligentcontainer.com/ Nachrichten zum Projekt IntelligenterContainer de Intelligenter Container http://www.intelligentcontainer.com/typo3conf/ext/tt_news/ext_icon.gif http://www.intelligentcontainer.com/ 18 16 Nachrichten zum Projekt IntelligenterContainer TYPO3 - get.content.right http://blogs.law.harvard.edu/tech/rss Mon, 13 Aug 2018 17:49:00 +0200 2D-Chip zur Strömungsmessung wird auf der IEEE Sensors 2018 in New Delhi präsentiert http://www.intelligentcontainer.com/nachrichten/Erste_News/TopNewsDT.html 28-31 Oktober, Indien A micromachined, membrane based, thermoelectric flow sensor for 2-dimensional measurement with high angular resolution  

Nico Hartgenbusch Mykhailo Borysov Reiner Jedermann, Walter Lang

This paper introduces a novel membrane based, thermoelectric flow sensor for measuring flow velocity and angle in a plane. With a size of 2 mm in square it is much smaller than comparable sensors; nevertheless it reaches an angular resolution of one degree. It is fabricated in a surface micromachining process and consists of a heater and four thermopiles, embedded in a SiN membrane. The sensor was invented to measure air flow distribution in cooled storage rooms for apples in order to enable a real-time control of the fans to reduce their power consumption. Due to the SiN membrane it’s furthermore possible to operate the sensor with various gases and liquids.

Zusätzlicher Vortrag über Integration von Drucksensoren mittels RFID Technologien:

Wireless Piezoresistive Pressure Sensors Used for Quality Control in Glass Fiber Composite Laminates

Minerva Gabriela Vargas Gleason, Reiner Jedermann, Adli Dimassi, Walter Lang

The production of new glass fiber composite parts is, to some extent, a trial-and-error process, which leads to high production costs and material waste. Embedding piezoresistive pressure sensors into composites during the manufacturing process allows for the determination of resin front flow and assists in preventing voids, ensuring complete fiber impregnation during infusion. This reduces material waste and the time required to produce a new part, therefore reducing production costs. When embedding pressure sensors in glass fiber laminates, the wires connecting the sensors often break during the infusion setup, rendering the sensors useless. Wireless pressure sensors solve this problem and simplify the setup required for embedding. In this work, two types of pressure sensors (analog and digital) were connected to a radio frequency identification (RFID) tag and successfully measured the resin flow front during infusion. http://ieee-sensors2018.org/

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Mon, 13 Aug 2018 17:47:00 +0200
Vortrag auf der SysInt 2018 http://www.intelligentcontainer.com/nachrichten/nachrichten-einzelansicht/vortrag-auf-der-sysint-2018/7abff74b6f7668ccd6aaa3ef741aa028.html 19. - 20. Juni 2018 in Hannover Testing Lora for food applications - Example application for airflow measurements inside cooled warehouses with apples
Fresh food during transportation and storage requires sensor monitoring of parameters such as product temperature and local velocity of cooling air. Wireless remote monitoring is hindered by the water content of food products. Typical 2.4 GHz wireless sensor nodes only achieve communication ranges of 0.5 m, whereas lower frequencies are expected to provide longer ranges. Therefore, the ranges and packet rates of several sub-GHz low power radio communication modules were compared inside an apple cold storage warehouse. LoRa modules and an alternate industrial radio, both operating at 866 MHz, provided full coverage of a 40-ton storage room. Temperature and airflow readings were transferred with packet rates >96%.  

4th International Conference on System-Integrated Intelligence
Intelligent, flexible and connected systems in products and production
June 19th - 20th 2018, Hannover, Germany
http://www.sysint-conference.org/ ]]>
Mon, 23 Apr 2018 12:37:00 +0200
Applikation des FEFO Prinzips in der Industrie http://www.intelligentcontainer.com/nachrichten/nachrichten-einzelansicht/applikation-des-fefo-prinzips-in-der-industrie/3f8ec5cc1390ef2948660366778aa507.html Waren werden im Distributionszentrum nach aktueller Qualität sortiert Walmart hat ein neues System namens  ‚Eden‘ angekündigt. Die Frische der Ware wird im während des Transportes und im Distributionszentrum neu kalkuliert. Die Route der Sendung wird umgehend angepasst, wenn sich deren Qualität unerwartet ändert. Das Ziel von Walmart ist es 2 Milliarden US$ an unverkäuflichen Lebensmitteln in den nächsten 5 Jahren zu vermeiden. Von Verigo wurde eine neue Generation von Bluetooth Datenloggern vorgestellt. Die Qualität der Ware wird anhand des aufgezeichneten Temperaturverlaufs ständig aktualisiert. Die Qualität und die Temperaturdaten können per Smartphone ausgelesen werden.

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Wed, 07 Mar 2018 13:02:00 +0100
Projekt COOL auf der grünen Woche und der FRUIT LOGISTICA http://www.intelligentcontainer.com/nachrichten/nachrichten-einzelansicht/projekt-cool-auf-der-gruenen-woche-und-der-fruit-logistica/ef55903488f474a6f7f8f94bc674116d.html Vortrag und neuer Flyer Internationalen Grünen Woche in Berlin (Januar 2018) wurde der neue Flyer des COOL Projektes vorgestellt. Anschließend folgt ein Vortrag auf dem FRUTIC Symposium im Rahmen der FRUIT LOGISTICA 2018 am 6. Februar 2018:
  • Airflow management in an apple CA storage room (Ulrike Praeger, Marc Sellwig, Daniel Neuwald, Holger Scaar, Reiner Jedermann, Martin Geyer) [Abstract]
[Download Flyer]

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Mon, 05 Feb 2018 14:43:00 +0100
IMSAS stellt neuen Chip zur 2-dimensionalen Strömungsmessung vor http://www.intelligentcontainer.com/nachrichten/nachrichten-einzelansicht/imsas-stellt-neuen-chip-zur-2-dimensionalen-stroemungsmessung-vor/0544911b924951ed4c0635eeea1e3283.html Praktische Erprobung der ersten Samples auf Feldtests
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Tue, 05 Dec 2017 17:46:00 +0100
Zwei Vorträge auf der IEEE Sensors 2017 in Glasgow http://www.intelligentcontainer.com/nachrichten/nachrichten-einzelansicht/zwei-vortraege-auf-der-ieee-sensors-2017-in-glasgow/6c2451fdd8d7955489b22a601825668b.html 30. Okt.– 1 Nov. 2017, Glasgow, Schottland http://ieee-sensors2017.org/ 

Jedermann, R.; Hartgenbusch, N.; Borysov, M.; Lang, W.:

Housing design for two-dimensional air flow sensors

Abstract— Two-dimensional measurement of airflow requires the design of a special housing. Key issues were the distance between the sensor surface and protective cover, as well as the attachment of the cover. Even thin cover holding needles affect the air flow inside the gap. The newly designed anemometer with improved housing geometry can measure airflow in x- and y-direction down to 0.1 m/s.

Jedermann, R.; Paul, H.; Lang, W.: 

Spatial processing of sensor network data - Demonstrator and feasibility study

Abstract—In this paper we present a new approach to reduce the amount of required data transfers in wireless sensor networks by distributed in-network processing of spatial sensor data. The measurements of local clusters are described by a model consisting of a set of Virtual Sensors (VS). Quasi optimal positions of the VS in-between real sensors are calculated on sensor nodes, which act as cluster heads. Tests on a demonstrator network verified good data compression, an acceptable prediction error of the distributed algorithm, and computational feasibility on sensor nodes equipped with a floating-point ARM processor.

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Wed, 23 Aug 2017 11:44:00 +0200
Vortrag zur Schimmeldetektion auf dem MST-Tag http://www.intelligentcontainer.com/nachrichten/nachrichten-einzelansicht/vortrag-zur-schimmeldetektion-auf-dem-mst-tag/9e7075adbfb3f14b0b31ce3a719059d5.html 19. September 2017 in Bremen Dr. Bianca Schröer, BMA-Labor GbR, Biologisches Mess- und Analyselabor, Bochum

Programm und Anmeldung auf: http://www.mcb.uni-bremen.de/index.php/mst-tag-2017/programm-mst-tag-2017   ]]>
Wed, 23 Aug 2017 11:41:00 +0200
Neues Gateway zum Zugriff auf Funksensoren per Satelliten-Kommunikation http://www.intelligentcontainer.com/nachrichten/nachrichten-einzelansicht/neues-gateway-zum-zugriff-auf-funksensoren-per-satelliten-kommunikation/2f76863302c54243834bb184254439c0.html Das junge Berliner Unternehmen VIRTENIO bietet in seinem Portfolio nun auch ein Gateway für... VIRTENIO bietet in seinem Portfolio nun auch ein Gateway für drahtlose Sensornetze, das Daten über das Iridium-Satellitennetzwerk austauscht.
Der ehemalige Konsortialpartner des Projektes "Intelligenter Container" macht es Kunden damit möglich, Daten seiner drahtlosen Multi-Sensorgeräte auch aus einem Seecontainer in Echtzeit in die Cloud zu Übermitteln. Empfindliche Waren können so lückenlos überwacht werden, auch wenn sie sich außerhalb der Reichweite von landgestützten Mobilfunknetzen befinden. Das batteriebetriebene PreonGate Iridium Gateway ist Teil des Komplettlösungs-Baukastens von VIRTENIO und kann auf Frachtschiffen oder in abgelegenen Orten bis zu 2 Monate bei mehreren Übertragungen pro Tag ohne Nachladen betrieben werden.  Dabei kann es die Daten von 50 Multi-Sensorgeräten empfangen und in die VIRTENIO-Web-Plattform übertragen. Dort können die Sensordaten analysiert und exportiert werden. Logistik- und Industrieunternehmen haben ab sofort die Möglichkeit, das Produkt auch als Bestandteil von Starter-Kits erwerben. Diese, wie auch die Gateways werden von VIRTENIO auf der Hannover Messe (24.-28. April) und auf der Transport Logistik in München (9.-12. Mai) präsentiert.

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Thu, 02 Mar 2017 10:08:00 +0100
Zwei Konferenz Vortäge im Februar 2017 http://www.intelligentcontainer.com/nachrichten/nachrichten-einzelansicht/zwei-konferenz-vortaege-im-februar-2017/054735427846d447adb3e379e627249d.html Frutic, Berlin und SCC, Hamburg FRUTIC Symposium 2017: Quality and safety of Fresh Horticultural Commodities Berlin, Germany,  February, 7-9 2017, www.frutic.atb-potsdam.de

Challenges and opportunities in remote monitoring of perishable products -
Lessons learned from the intelligent container

Reiner Jedermann, Ulrike Praeger, Walter Lang
Temperature deviations during transport and storage still cause a significant amount of food loss. A large portion of this loss could be avoided if information regarding deviating transport conditions and resulting changes in remaining shelf life of the product would be available in real-time. In this study, we detail a prototype of such an intelligent container. The technical system, and results from tests in trans-ocean transportation of bananas are presented. The system is also able to predict hot-spots, which were identified as the most crucial risk for product loss. Although several technical solutions for remote container monitoring (RCM) and wireless temperature data logging are available on the market, a wide application of the concept of real-time shelf life monitoring is still lacking. Challenges that still have to be met are mostly related to problems which result from the splitting of the cold chain into multiple actors, and different manufacturers and target customer groups for RMC and for wireless sensor systems.

11th International ITG Conference on Systems, Communication and Coding

February 6-9, 2017, Hamburg Germany, www.scc2017.net 

In-network Processing by the Example of Maxima Estimation in Spatial Fields

Reiner Jedermann, Henning Paul, Walter Lang

Wireless sensor networks are often used to observe the spatial distribution of a physical quantity. By summarizing the observations of hundred or more nodes in a small set of parameters, the amount of data that has to be transmitted from the network to an external observer can be reduced. In this article we show by the example of an algorithm for estimation of local field maxima, that it is also possible to reduce the data exchange within the network by in-network processing. Each sensor node requires information only from its 15 closest neighbors, thus reducing communication by more than 50% compared with central data processing by the gateway between network and external observer. The algorithm is well suited for distributed implementation. The accuracy of the estimation was evaluated for different measurement noise powers, numbers of sensors, and sensor placement schemes.

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Fri, 13 Jan 2017 14:02:00 +0100
Zwei Vorträge im September 2016 http://www.intelligentcontainer.com/nachrichten/nachrichten-einzelansicht/zwei-vortraege-im-september-2016/33bcabe05ef694dbb54b171e8bf75571.html 30th Eurosensors Conference, EUROSENSORS 2016 ### Wireless for Space and Extreme Environments,... Nico Hartgenbusch, Mykhailo Borysov, Reiner Jedermann, Walter Lang:

Pulsed excitation of thermal flow sensors for reduced power consumption and expanded measurement range

30th Eurosensors Conference, EUROSENSORS 2016, 4-7 September 2016, Budapest, Hungary, http://eurosensors.akcongress.com/

Abstract: This paper presents a new method of low power excitation for thermal flow sensors by driving them with voltage pulses. The impulses are generated by a capacitor circuit and can have duration of some ms or less, depending on the voltage and the required resolution. Although the sensor, due to the short duration of the pulse, does not reach thermal equilibrium, the dynamic heating curve provides enough information to determine the flow rate.
This pulsed excitation method provides a substantial reduction of the power consumption (by 78%, in the case of pulses of 1 ms and 5 V). Moreover the additional information contained in the shape of the impulse response allows to expand the measurement range by a factor of 8 or more. Reiner Jedermann, Henning Paul and Walter Lang:

Compressed Radio Transmission of Spatial Field Measurements by Virtual Sensors

Wireless for Space and Extreme Environments, WISEE 2016
ICT cubes, Aachen, Germany, September 26 - 29, 2016
https://www.ti.rwth-aachen.de/WiSEE2016/

Abstract: The remote exploration or monitoring of an environment often includes sensor measurements at multiple probe points and reconstruction of the spatial distribution of the observed physical quantity by a regression model. Especially for long distances between the observer and the environment, required data volume for transmitting a parametric description of the spatial distribution becomes critical. Simple physical models or assumption of parametric base functions do not provide sufficient prediction accuracy. Statistically based methods for field reconstruction such as Kriging or Gaussian Process Regression provide good accuracy, even if the measurements are overlaid with noise, provided all sensor data is transmitted. The new method presented in this paper calculates a small set of quasi optimal virtual sensor positions located in-between the real sensors. By transmitting only the predicted values of these virtual sensors, the spatial field can be reconstructed with less transmitted data and without significantly increasing the prediction error. The new approach was verified in a simulation scenario for a temperature field caused by diffusion and advection phenomena, which yielded a data compression by a factor of up to four. For large variations of the number of sensors and of the magnitude of measurement noise, the prediction error was always lower compared with the parametric base function models.

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Fri, 05 Aug 2016 15:39:00 +0200