Plethora was originally designed to make it easier to test different distributed data collection and localization processes with a single hardware platform.
Plethora combines a wide selection of sensors and wireless modules and interfaces. So developers are able to implement and test different data transmission systems on a single platform.
Bernd Müller / Fraunhofer ESK
However, because Plethora provides all developers of complex, distributed applications in fields such as building or process automation greater testing leeway, Fraunhofer ESK researchers are introducing the prototyping platform to the public for the first time at the embedded world trade fair in Nürnberg (February 25-27, 2014, stand 5-250, hall 5).
For applications that require distributed data collection and processing capability, developers are likely to have various solutions at their disposal, all of which need different sensors and wireless technologies. The issue is that it is often not possible to test different system designs because different platforms would be required. Plethora addresses this problem by offering a single platform for the prototype implementation and testing of different data transmission, automation or localization processes.
To achieve this, the system combines a wide selection of sensors and various modules and interfaces. Using Plethora, developers can test solutions for diverse application scenarios in a near-real environment and among other tasks, compare the various properties of different wireless technologies in an easy and efficient manner. With its modular design, the platform furthermore offers an ideal basis for installing additional complex sensors or wireless modules.
The sensors and wireless modules are controlled by a high-performance Cortex-M3 microcontroller. The platform comes installed with the following sensors: barometer, accelerometer, magnetometer, temperature, humidity and ambient light. Additional external sensors can be connected. For communication and localization, Plethora features a transceiver in the 868 MHz band, as well as IEEE 802.15.4 and IEEE 802.11 b/g compliant transceivers for the 2.4 GHz band.
Each receiver has its own amplifier and software-controlled antenna outputs that can also be used to analyze the impact of various antennas and transmission levels on the localization and range of the system. Plethora can be powered by a lithium-polymer battery, as well as by a USB or 12V connection, both of which can be used to charge the battery.
For developers who need additional functionality, other modules are very easy to connect by means of a CAN bus or via SPI, I2C and UART interfaces, which are accessible through 12-pin expansion connectors.
The next phase of development involves integration of an ultra wideband transceiver, which enables significantly higher speeds for video transmissions and precise localization algorithms. In parallel, the comprehensive software framework will be enhanced in order to further simplify access to the system and to better link the various technologies with one another.
Plethora's flexibility puts Fraunhofer ESK in the position of being able to develop localization and communication systems tailored to the individual needs of the customer. Interested customers can even employ the system to implement their own ideas. Examples of the situation-specific requirements and concepts that make custom development necessary include the type of power supply, the integration of existing sensors and networks and the special characteristics of the application itself.
Marion Rathmann | Fraunhofer-Institut
OLED production facility from a single source
29.03.2017 | Fraunhofer-Institut für Angewandte Polymerforschung IAP
High Resolution Laser Structuring of Thin Films at LOPEC 2017
21.03.2017 | Fraunhofer-Institut für Lasertechnik ILT
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
29.03.2017 | Materials Sciences
29.03.2017 | Physics and Astronomy
29.03.2017 | Earth Sciences