Projects
Projects Highlights from the projects © SPP2433 / Ahraar Shareef project A1 / Ahraar Shareef © SPP2433 / Jiekai Wang project A3 / Jiekai Wang © SPP2433 / Henrik Lurz project A4 / Henrik Lurz © SPP2433 / Stefan Jacob project B2 / Stefan Jacob © SPP2433 / Andrew Straw project B4 / Andrew Straw © SPP2433 / Lukas Dippon project C2 / Lukas Dippon © SPP2433 / Kilian Gerberding project C3 / Kilian Gerberding © SPP2433 / Jannika Rolfs project C5 / Jannika Rolfs © SPP2433 / Anna Voss project D1 / Anna Voss © SPP2433 / Antonias Rabe project D2 / Antonia Rabe © SPP2433 / Niklas Karbach project D2 / Niklas Karbach © SPP2433 / Patrick Hinsen project D3 / Patrick Hinsen © SPP2433 / Thomas Wiedemann project D3 / Thomas Wiedemann Geometry measurement A1: Drone-based, areal laser triangulation for the geometry measurement of localised surface defects A1: Drone-based, areal laser triangulation for the geometry measurement of localised surface defects Realisation of a drone-based laser measurement system for the geometry detection of local surface defects. Contactless, marker-based 3D registration and repeated measurements from different drone positions should significantly increase the image and measurement resolution. Your browser does not support the video element. 32 MB © SPP2433/Universität Bremen Contact: Prof. Dr.-Ing. habil. Andreas Fischer E-mail: andreas.fischer protect me ?! bimaq protect me ?! .de A2: Drone-based single-shot grid projection for 3D detection of surface anomalies A2: Drone-based single-shot grid projection for 3D detection of surface anomalies The inspection of surfaces at great heights, e.g. rotor blades on wind turbines, is currently mainly carried out on the basis of two-dimensional camera images or visually with the human eye. However, reliable data-based defect detection and classification using an optical 3D topography measurement method forms the basis for minimising potential sources of error during surface inspection and increasing the accuracy of the results. The aim of this project is therefore to capture 3D topography using single-shot strip triangulation from a drone in order to enable direct measurements and quantitative topography analysis from the air. Your browser does not support the video element. 19 MB © SPP2433/Universität Kassel Contact: Prof. Dr.-Ing. habil. Lehmann E-mail: p.lehmann protect me ?! uni-kassel protect me ?! .de A3: Fibre-optic contact sensor for determining the relative movement between the drone and the measurement object for motion correction of a close-range 3D inspection lidar A3: Fibre-optic contact sensor for determining the relative movement between the drone and the measurement object for motion correction of a close-range 3D inspection lidar Drone-based object monitoring enables the identification of damage, e.g. to bridges or wind turbines. However, quantitative measurements, such as determining the depth of damage to cracks or dents, are technically challenging, particularly due to disruptive environmental influences such as wind movements and vibrations of the object being measured. To solve this problem, an innovative method is being developed that can directly measure the relative disturbing movements between the drone and the object. This is done using a fibre-optic sensor, which temporarily establishes direct contact between the drone and the object being measured. The information obtained can then be used to correct the actual measurement data and is to be used in this project, for example, in the 3D image stabilisation of a close-range lidar. Your browser does not support the video element. 28 MB © SPP2433/TU Ilmenau Contact: Jun.-Prof. Dr. Thomas Kissinger E-mail: thomas.kissinger protect me ?! tu-ilmenau protect me ?! .de A4: Airborne measuring system with a large working range A4: Airborne measuring system with a large working range In this project, a drone-supported measuring system is being developed for the digitalisation of infrastructure or large-scale industrial products. The measuring system attached to the drone consists of kinematics for stabilisation and a fringe light projection system for surface measurement in the sub-millimetre range. The localisation and thus combination of the individual measurements is made possible by a laser tracking system that can be moved by mobile robots and considerably expands the working area. Your browser does not support the video element. 20 MB © SPP2433/Universität Hannover Contact: Prof. Dr.-Ing. Annika Raatz E-mail: raatz protect me ?! match.uni-hannover protect me ?! .de PD Dr.-Ing. Markus Kästner E-mail: markus.kaestner protect me ?! imr.uni-hannover protect me ?! .de Position, vibration and acoustic measurement B1: Laser Doppler vibrometer with external laser for flying platforms with radio transmission B1: Laser Doppler vibrometer with external laser for flying platforms with radio transmission Project B1 builds on a long-standing collaboration between Clausthal University of Technology and the DLR, in which vibrations are measured using mirrors on drones with laser sensors on bridges, buildings, wind turbines and other large structures. In SPP 2433, the team is researching how to realise a laser Doppler vibrometer on a drone that is supplied with energy and laser light from the ground. The aim of this research is to reduce measurement uncertainties for vibration amplitudes, which are used to identify damage. Your browser does not support the video element. 17 MB © SPP2433/DLR/TU Clausthal Contact: Prof. Dr.-Ing. Umut Durak E-mail: umut.durak protect me ?! dlr protect me ?! .de Prof. Dr.-Ing. Christian Rembe E-mail: rembe protect me ?! iei.tu-clausthal protect me ?! .de B2: UAV-based near-field far-field transformation for detailed characterisation of large emission sources under operating conditions B2: UAV-based near-field far-field transformation for detailed characterisation of large emission sources under operating conditions UAVs (unmanned aerial vehicles/drones) offer new possibilities for the precise mapping of physical fields in areas that are difficult to access. The project is investigating how complete far fields can be determined from near-field measurements in acoustics (low-frequency sound emitters such as wind turbines) and electromagnetics (e.g. antenna systems). The interdisciplinary project utilises a mathematically very similar description of wave propagation phenomena in both applications. Your browser does not support the video element. 22 MB © SPP2433/PTB Contact: Dr. Stefan Jacob E-mail: stefan.jacob protect me ?! ptb protect me ?! .de Prof. Dr.-Ing. Thomas Kleine-Ostmann E-mail: t.kleine-ostmann protect me ?! tu-braunschweig protect me ?! .de B3: Flying intelligent metasurfaces for radar-based positioning B3: Flying intelligent metasurfaces for radar-based positioning In the project, metasurfaces (reconfigurable intelligent surfaces) are combined with drones in such a way that radar-based position measurements around obstacles become possible. The project aims to model the measurement accuracy and then improve it based on models and optimisation. Contact: Prof. Dr.-Ing. Martin Mönnigmann E-mail: martin.moennigmann protect me ?! rub protect me ?! .de Prof. Dr.-Ing. Aydin Sezgin E-mail: aydin.sezgin protect me ?! rub protect me ?! .de B4: Improving the precision of insect tracking with drones: Fusion of multiple sensor data to determine the position of insects with evaluated measurement uncertainties B4: Improving the precision of insect tracking with drones: Fusion of multiple sensor data to determine the position of insects with evaluated measurement uncertainties We have developed a multicopter that can follow flying insects in nature. We measure the 3D georeferenced position of bees and other insects over hundreds or thousands of metres. In this project, we quantify and improve the performance of these position measurements. Your browser does not support the video element. 73 MB © SPP2433/Universität Freiburg Contact: Prof. Dr. Andrew Straw E-mail: straw protect me ?! bio.uni-freiburg protect me ?! .de B5: Reliable measurements for safe rescue operations after building collapses - ZeMerGe B5: Reliable measurements for safe rescue operations after building collapses - ZeMerGe During rescue operations after building collapses, rescue teams often do not know where people are buried or where there is a risk of gas leaks. We enable safer rescue operations with drone-based, innovative measurement technology for natural gas leaks and bioradar. The aim is to systematically determine the measurement quality of both systems depending on the resources of time, size and energy (‘measurement uncertainty budget’). Contact: Prof. Dr. Stefan J. Rupitsch E-mail: stefan.rupitsch protect me ?! imtek.uni-freiburg protect me ?! .de Dr. Katrin Schmitt E-mail: katrin.schmitt protect me ?! imtek.uni-freiburg protect me ?! .de Measurement of material properties I - solid & liquid C1: UAV-based imaging techniques for the measurement of far-red sun-induced chlorophyll fluorescence C1: UAV-based imaging techniques for the measurement of far-red sun-induced chlorophyll fluorescence In this project, we measure the photosynthetic performance of plants, e.g. to detect plant stress. The camera system uses special filters to separate the emitted sun-induced fluorescence in the near-infrared from the reflected light of the plants. Your browser does not support the video element. 96 MB Contact: Dr. Juliane Bendig E-mail: j.bendig protect me ?! fz-juelich protect me ?! .de C2: CoPyro - Quantitative temperature measurement on a flying platform using lensless single-sensor quotient pyrometry C2: CoPyro - Quantitative temperature measurement on a flying platform using lensless single-sensor quotient pyrometry Research and development of a compact and lightweight sensor concept for quantitative, contactless and emissivity-independent temperature measurement. Instead of a conventional lens, a lensless optical system is implemented and the desired temperature image is reconstructed using computational imaging methods. Your browser does not support the video element. 12 MB © SPP2433/Fraunhofer-IOSB Contact: Dr.-Ing. Johannes Meyer E-mail: johannes.meyer protect me ?! iosb.fraunhofer protect me ?! .de C3: A drone-based 2-wavelength LiDAR for the determination of leaf water content C3: A drone-based 2-wavelength LiDAR for the determination of leaf water content In the context of heat and drought extremes, the leaf water content of plants plays a central role as a stress indicator. With the aim of recording the leaf water content in 3D and at any time of day, the project is developing a dual-wavelength LiDAR with tuned absorption bands. Based on a process chain to be developed, the leaf water content and corresponding uncertainties are automatically derived. Your browser does not support the video element. 79 MB © SPP2433/Universität Leipzig Contact: Prof. Dr. Teja Kattenborn E-mail: teja.kattenborn protect me ?! uni-leipzig protect me ?! .de Prof. Dr. Alexander Reiterer E-mail: alexander.reiterer protect me ?! ipm.fraunhofer protect me ?! .de C4: Quantitative recording of the water content in the soil using drone-based digital radar C4: Quantitative recording of the water content in the soil using drone-based digital radar The aim of this project is to quantitatively measure the moisture content of the soil using radar sensors. The sensors are attached to a drone. A new measurement principle with a corresponding sensor and a new signal processing concept are to be researched for this measurement task. Your browser does not support the video element. 42 MB © SPP2433/Universität Ulm Contact: Prof. Dr.-Ing. Christian Waldschmidt E-mail: christian.waldschmidt protect me ?! uni-ulm protect me ?! .de C5: Drone-mounted sensor system for determining nitrite and nitrate content in open waters C5: Drone-mounted sensor system for determining nitrite and nitrate content in open waters In this project, a drone-mounted sensor system for the real-time measurement of nitrite and nitrate levels in open waters is being realised, which enables the mapping of nutrient concentrations. To this end, an automated chip laboratory developed in preliminary work is being further developed for drone assembly. The project focusses on the investigation of measurement accuracy as a function of resources such as weight, energy and time per measurement. Your browser does not support the video element. 63 MB © SPP2433/Christian-Albrechts-Universität zu Kiel Contact: Prof. Dr. Martina Gerken E-mail: mge protect me ?! tf.uni-kiel protect me ?! .de Measurement of material properties II - gas & particles D1: Measurement of air quality parameters with a new type of drone - Air-Q-Drone D1: Measurement of air quality parameters with a new type of drone - Air-Q-Drone In the Air-Q-Drone project, a commercial drone is equipped with measurement technology to record particulate air pollutants such as PM10, PM 2.5 and ultrafine particles and is operated and characterised in flight under highly fluctuating atmospheric conditions such as temperature, humidity and wind. In contrast to previous systems, the entire range from 10 nm to 10 mm is recorded here. Previous projects were often only able to estimate the range below 300 nm, which resulted in large uncertainties in the measurements. Your browser does not support the video element. 16 MB © SPP2433/TU Braunschweig/TROPOS Contact: Dr. Astrid Lampert E-mail: Astrid.Lampert protect me ?! tu-bs protect me ?! .de Dr. Birgit Wehner E-mail: birgit protect me ?! tropos protect me ?! .de D2: Development of a drone-based measurement system for real-time monitoring of the composition of volcanic gases D2: Development of a drone-based measurement system for real-time monitoring of the composition of volcanic gases Volcanoes, and volcanic eruptions in particular, pose a significant risk to the population living in their vicinity, which is why continuous monitoring is essential. In addition to seismological assessments, the gas composition of volcanic outgassing can also be determined in order to make predictions regarding activity. To ensure the high quality of the measured data, accurate and above all regular calibration of the sensors used is essential. The use of drone-based sensor systems for real-time measurement of multiple gases can help to improve the prediction of volcanic eruptions without putting scientists in direct danger. Your browser does not support the video element. 21 MB © SPP2433/Universität Mainz Contact: Prof. Dr. Thorsten Hoffmann E-mail: t.hoffmann protect me ?! uni-mainz protect me ?! .de D3: Flying, model-based gastomograph - FliMoGaTo D3: Flying, model-based gastomograph - FliMoGaTo The aim of the project FliMoGaTo is to enable laser absorption measurements between two flying drones to measure gas and trace substances in the air without the drones' rotors disturbing the gas distribution. To this end, gas distribution models are created from remote measurements (utilizing domain knowledge in the form of physical differential equations), and, on this basis, intelligent measurement plans are calculated. Our aim is to create spatial maps of the gas distribution as accurately and as efficiently as possible. Your browser does not support the video element. 46 MB © SPP2433/TUM/DLR Contact: Prof. Dr. Achim Lilienthal E-mail: achim.j.lilienthal protect me ?! tum protect me ?! .de Dr. Thomas Wiedemann E-mail: thomas.wiedemann protect me ?! dlr protect me ?! .de D4: Enhanced Raman spectroscopic multigas sensing on flying platforms for 3D concentration profiling D4: Enhanced Raman spectroscopic multigas sensing on flying platforms for 3D concentration profiling We are researching highly sensitive Raman spectroscopy for universal gas analysis. Using this laser spectroscopic measurement technique, we can identify and quantify various gases and volatile substances with chemical selectivity and thus characterize complex gas compositions. By employing it on a drone, we want to, e.g., precisely localize sources of gases that are harmful to climate or health and create 3D profiles. Your browser does not support the video element. 36 MB © SPP2433/TU Darmstadt Contact: Prof. Dr. rer. nat. habil. Torsten Frosch E-mail: torsten.frosch protect me ?! tu-darmstadt protect me ?! .de D5: Flying analytics - drone-compatible ion mobility spectrometer with switchable gas chromatograph for rapid assessment of chemical hazards D5: Flying analytics - drone-compatible ion mobility spectrometer with switchable gas chromatograph for rapid assessment of chemical hazards This project concentrates on the development of a design strategy including the hardware implementation of a drone-compatible, dual ion mobility spectrometer (IMS) with non-radioactive ionization source, high resolving power and detection limits in the ppt range with measurement times of less than one second for rapid analysis of air samples in safety and security applications as well as in environmental measurement applications. A drone-compatible gas chromatograph (GC) with IMS as a detector will be also developed for quantitative analysis of complex samples. Rapid remote sensing of a larger area is then carried out by UAV-IMS, while the GC can be used on demand by remotely coupling the GC to the IMS as required for quantitative analyses of sensitive areas by UAV-GC-IMS. Your browser does not support the video element. 95 MB Contact: Prof. Dr.-Ing. Stefan Zimmermann E-mail: zimmermann protect me ?! geml.uni-hannover protect me ?! .de