Volker Coors

Volker Coors
Hochschule für Technik Stuttgart · Faculty Surveying, Computer Sciene and Mathematics

Prof. Dr.

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195
Publications
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2,621
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Publications

Publications (195)
Book
This open access book presents the exciting research results of the BMBF funded project iCity and related research findings at HFT carried out at University of Applied Science Stuttgart to help cities to become more liveable, intelligent and sustainable, to become a LIScity. The research has been pursued with industry partners and NGOs from 2017 to...
Conference Paper
Full-text available
Nowadays, the digital 3D city models are the basis of the urban data platform. It plays an essential role in various fields of industry and research, from urban resource planning, environmental simulation, disaster management, and many more. Especially, there is more and more use of 3D city models in 3D visualization applications. However, one comm...
Technical Report
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Der Zugriff auf die Echtzeit-Ortungsdaten aller Objekte ist die Basis für effizientere Prozesse und ein nachhaltiges Wirtschaften. Durch Echtzeit-Ortung können Maschinen und Ausrüstung effektiver ein-gesetzt, sowie Mitarbeiter sicher und schnell durch die Industriehallen geleitet werden, beispielsweise per Augmented Reality (AR). Das VDC formuliert...
Article
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This paper proposes a multiple CNN architecture with multiple input features, combined with multiple LSTM, along with densely connected convolutional layers, for temporal wind nature analyses. The designed architecture is called Multiple features, Multiple Densely Connected Convolutional Neural Network with Multiple LSTM Architecture, i.e. MCLT. A...
Technical Report
Full-text available
The OGC Interoperable Simulation and Gaming Year 2 Sprint advanced the use of relevant OGC and Khronos Group standards in the modeling, simulation, and training communities through capability development, compatibility testing, and gap analysis. Of particular interest was the use of glTF models, game engines, and 3rd-party mobile device libraries f...
Article
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Moving into the third decade of the 21st century, smart cities are becoming a vital concept of advancement of the quality of life. Without any doubt, cities today can generate data of high velocity which can be used in plethora of applications. The wind flow inside a city is an area of several studies which span from pedestrian comfort and natural...
Article
Building heating demand makes up about a third of final energy consumption in Germany. Increasing energy efficiency and switching to alternative heating technologies, e.g., based on renewable energies, plays a pivotal role in achieving greenhouse gas emission targets in the building sector. In developing meaningful and efficient policies such as in...
Article
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This paper explains the development of a 3D city model-based Public Participation Platform as a prototype and its implementation in a real-world public participation process to redevelop the Weilimdorf area of Stuttgart city. Alongside conducting Weilimdorf’s public participation process, the goal of the mentioned public participation platform is t...
Article
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This paper explains the first insights into the ongoing development of a CityGML based Food Water Energy Application Domain Extension (FWE ADE). Cities are undergoing rapid expansion throughout the globe. As a result, they face a common challenge to provide food, water and energy (FWE) supplies under healthy and economically productive conditions....
Article
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With the increase of applications using 3D models as base for visualization or simulation the requirements for having valid models rises. While there are many programs that validate models there is no standard for storing the results. The simulation programs also may implement their own validation checking to verify if a model can be simulated whic...
Article
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The increased usage of the environmental monitoring system and sensors, installed on a day-to-day basis to explore information and monitor the cities’ environment and pollution conditions, are in demand. Sensor networking advancement with quality and quantity of environmental data has given rise to increasing techniques and methodologies supporting...
Article
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Urban platforms are becoming a vital role player in city resources management for achieving the right balance between social and economic services and their impact on the environment. More and more cities are starting to benefit from an urban platform to state the city conditions and re-coin the shape of life depending on data gathered from differe...
Article
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In the face of climate change and the energy transition that the German federal government is aiming for, all renewable energy potentials need to be tapped. Unfortunately, small wind turbines play a niche role in Germany and most other countries despite the fact, that although they offer advantages as e.g. almost seasonal independent energy product...
Conference Paper
Full-text available
The projected increasing population in cities and metropolitan regions results in higher demands of resources, i.e., food, water, and energy (FAO 2018), that are essential for human well-being, poverty reduction, and sustainable development (Hülsmann and Ardakanian 2018). There are clear interactions between water, food, and energy that may result...
Conference Paper
Full-text available
Cities are undergoing rapid urbanisation throughout the globe. A common challenge amongst them is to provide food, water, and energy (FWE) supplies under sustainable and economically productive conditions. As a result, new tools and techniques must be developed to support domain experts and decision-makers to understand, simulate and visualise the...
Article
Full-text available
A quantitative assessment of food-water-energy interactions is important to assess pathways and scenarios towards a holistically sustainable regional development. While a range of tools and methods exist that assess energetic demands and potentials on a regional scale, the same is not true for assessments of regional food demand and potential. This...
Article
Full-text available
This work presents Air Quality Temporal Analyser (AQTA), an interactive system to support visual analyses of air quality data with time. This interactive AQTA allows the seamless integration of predictive models and detailed patterns analyses. While previous approaches lack predictive air quality options, this interface provides back-and-forth dial...
Article
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District heating is seen as an important concept to decarbonize heating systems and meet climate mitigation goals. However, the decision related to where central heating is most viable is dependent on many different aspects, like heating densities or current heating structures. An urban energy simulation platform based on 3D building objects can im...
Article
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Eine nachhaltige Wärmeversorgung von Bestands- und Neubauquartieren kann maßgeblich dazu beitragen, die klimapolitischen Zielsetzungen Deutschlands und der EU zu erreichen. Der 3D-Gebäudeenergie-Workflow-Manager SimStadt hilft dabei, die energetische Quartiersplanung zu vereinfachen.
Article
Grouping techniques are frequently used in urban studies as a means for partitioning building stock heterogeneity. The choice of grouping techniques and selection indices can have a significant influence on the segmentation of building stock and associated identification of representative buildings. To date, this issue has not been systematically e...
Conference Paper
This paper introduces a web-based application that visualizes building specific simulation results regarding renewable potentials and economics for entire city quarters. Focusing on the building stock, this application enables decision-makers to consider energy related aspects in early-stage city quarter planning. The application builds on the exis...
Article
Devices from the Internet of Things are being increasingly used in everyday life, and they provide a massive amount of data in various formats. While implementing the Smart Cities initiative, these data are integrated and utilized together with the 3D city model for further applications. Based on Open Geospatial Consortium standards, heterogeneous...
Article
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The assessment of regional bioenergy potentials from different types of natural land cover is an integral part of simulation tools that aim to assess local renewable energy systems. This work introduces a new workflow, which evaluates regional bioenergy potentials and its impact on water demand based on geographical information system (GIS)-based l...
Technical Report
Full-text available
The goal of the OGC ISG Sprint was to advance the use of relevant OGC and Khronos standards in the modeling and simulation community through practical exercise and testing of the draft specification produced by the 3D Data Container and Tiles API Pilot (and the associated YouTube Playlist). Of particular interest was the handling and integration of...
Article
Full-text available
The concept and implementation of Smart Cities is an important approach to improve decision making as well as quality of life of the growing urban population. An essential part of this is the presentation of data from different sources within a digital city model. Wind flow at building scale has a strong impact on many health and energy issues in a...
Technical Report
Full-text available
This Engineering Report summarizes the purpose and key results of the 3D Data Container and Tiles API Pilot, an OGC Innovation Program initiative conducted between October 2019 and July 2020. In the context of both existing and emerging 3D and 2D standards, the focus of the Pilot was on the exchange and visualization of 3D data using open standards...
Article
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Human and ecosystem health is affected by the risk of air pollution. A comprehensive understanding of the parameters generating pollution and governing their nature in time is essential to devise functional policies focusing on minimising the concentration of the pollutants. The effect of pollution parameters on meteorological data and existing in...
Conference Paper
Full-text available
The latest coronavirus (namely severe acute respiratory syndrome coronavirus 2 or COVID-19) was first detected in Wuhan, China, and spread throughout the world since December 2019. To tackle this pandemic, we need a tool to trace and predict trends of COVID-19 at global, national, and regional levels rapidly. Several organizations around the world...
Conference Paper
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The recent advancement in Information & Communication Technology (ICT) is seen as a critical enabler to design intelligent smart cities targeting different domains. One such domain is modes of transport in a city. Currently, various cities around the world are envisioning innovative ways to reduce emissions in the cities by increasing physically ac...
Conference Paper
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In this paper various schemes for visualizing geo-spatial data such as Computational Fluid Dynamics (CFD) data are explored. The architecture of a new Smart Cities Platform is presented and examples of the visualization capabilities are given. Results show that scalar and vectorial measurands, such as wind pressure and wind directions, may be prese...
Conference Paper
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As the world continues in the quest to fight global warming and environmental pollution by gradually moving to renewable sources of energy, there is also a need to reduce building energy consumption by refurbishing old and historic buildings to meet the required energy standards. While this approach may differ from city to city across the globe, th...
Article
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Emotions are one of the manner humans use to indicate how they feel about a particular event, place or things. To date there is no consensus about the correlation of measured data to an unambiguously defined emotional state. The selection of parameters, their weight and range, which derive at an emotion, are not clearly defined. Especially, if meas...
Article
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We propose a server-client web architecture identifying areas with high wind energy potential by employing 3D technologies and OGC standards. The assessment of a whole city or sub-regions will be supported by integrating Computational Fluid Dynamics (CFD) with historical wind sensor readings. The results, in 3D space, of such analysis could be used...
Conference Paper
Full-text available
Rapid urbanisation and the ever-growing world population have put a heavy toll on world climatic conditions especially in the way existing and new urban developments emit carbon. As per an estimation, 28% of all energy related carbon emission worldwide accounts for energy used to heat, cool and light the buildings. In this context along with new ap...
Conference Paper
Full-text available
The assessment of theoretical and technical biomass potential from different types of natural land cover is an integral part of simulation tools that aim to assess local multi-energy systems. This work introduces a new workflow which evaluates the local biomass potential from various sources, its transformation to different forms of biofuel and the...
Conference Paper
Full-text available
In this paper, we present a concept for an urban energy dashboard built using different Open Geospatial Consortium (OGC) standards integrated with 3D city models. With cities continuously pressed to cut upon their carbon emissions, it becomes vital to visualize different energy data under one application. This perfectly fits ourvision of developing...
Technical Report
Full-text available
The 3D IoT Platform for Smart Cities Pilot advanced the use of open standards for integrating environmental, building, and IoT data in Smart Cities. It focused on the capabilities to be supported by a 3D IoT Smart City Platform under CityGML, IndoorGML, and SensorThings API. Scenarios explored included real-time monitoring of micro-dust and indoor...
Article
Full-text available
In this paper, a novel approach to specify application-specific requirements for 3D City Models is proposed. A modular set of geometric and semantic requirements that are based on the OGC CityGML Quality Interoperability Experiment (Coors and Wagner in Fernerkundung und Geoinformation eV 24:288–295, 2015) has been specified. Depending on the purpos...
Chapter
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Das "Smart Cities"-Konzept wird in größeren Städten angewandt, jedoch aufgrund des Personal-und Struktur-kostenbedarfs kaum in kleinen und mittleren Kommunen. Dieser Beitrag konzentriert sich auf die Übertragung des "Smart Cities"-Kon-zepts auf Kommunen im ländlichen Raum. Für den Anwendungsfall wird dieses Konzept im Rahmen des Projekts "Smart Vil...
Poster
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The county of Ludwigsburg is located in the centre of Baden-Württemberg, in Germany’s south-western corner. It covers an area of approximately 265 square miles, with a population of about 550,000 inhabitants, spread across 39 municipalities. In 2013, the county set itself a goal of reducing greenhouse gas emissions by 90 percent until 2050 through...
Article
A good framework for the quantification and decomposition of uncertainties in dynamic building performance simulation should: (i) simulate the principle deterministic processes influencing heat flows and the stochastic perturbations to them, (ii) quantify and decompose the total uncertainty into its respective sources, and the interactions between...
Chapter
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In today's world, with increasing demands of green energy resources, wind energy is one of the freely available natural options, as a replacement for nonrenewable sources of energy. The past nature of the wind speed and direction affects the behavior of future wind patterns. Further, selecting a location to install new wind sensors and turbines req...
Article
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Meteorological data and its effect have been the attention of the researchers of the smart city planning for thorough utilization and management of resources, that help in effective government management, convenient public services and sustainable industrial development. Renewable sources of energy like wind, solar, are being integrated into city p...
Article
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This paper proposes two one-dimensional (1D)convolutional neural networks (CNNs)for predicting dominant wind speed and direction for the temporal wind dataset. The proposed 1D Single CNN (1DS)takes as input the consecutive temporal values in terms of the wind speed and direction and predicts in future dominating speed and direction, separately, aft...
Conference Paper
Full-text available
The participation methods changed in recent years with the evolution of communication methods in general. It goes from an analog approach to a more information technology-based concept. This new form of participation is called e-Participation. With this new form of participation, the process opens up for different new technologies.The emergence of...
Chapter
Different associated properties of city models like building geometries, building energy systems, building end uses, and building occupant behavior are usually saved in different data formats and are obtained from different data sources. Experience has shown that the integration of these data sets for the purpose of energy simulation on city scale...
Chapter
Advances in modeling and simulation have led to the development of highly detailed and complex building performance simulation (BPS) models. However, at the same time, they have become increasingly data hungry and computationally intensive tasks, for instance to assess the energy efficiency of early building designs or energy saving potential of re...
Article
Mit steigenden Bewohnerzahlen urbaner Gebiete entstehen Veränderungen, die deren Lebenswert beeinträchtigen. Um ein besseres Verständnis für das subjektive Erleben der Bewohner*innen zu be- kommen, sind valide psychologische Instrumente zur Emotionsmessung und innovative Ansätze zur Visualisierung notwendig. Zur Entwicklung passender Erfassungsmögl...
Article
Full-text available
According to the advances in Information & Communication Technology (ICT), nowadays, the use of Internet of Things (IoT) has become a normal part of daily life. It allows interconnections among a wide variety of devices and sensors such as smartphones, smartwatches, automobiles, or any object with a built-in sensor. However, these devices and senso...
Article
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Cities become increasingly populated, which calls for new approaches to ensure that cities continue being viable places for citizens to live in. The focus of these approaches should be on understanding citizens regarding their feelings, needs and behaviours. This includes an understanding of the perception of and the emotional reactions to urban st...
Article
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In a transformation process to become a climate-neutral city campus, universities have to deal with the sustainable concept. Since “human factor” plays a significant role in the transformation process, providing easy access to environmental data to influence building occupants’ behavior is essential. By utilizing energy-related data without spatial...
Article
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Geo-Visualisation (GV) and Visual Analytics (VA) of geo-spatial data have become a focus of interest for research, industries, government and other organisations for improving the mobility, energy efficiency, waste management and public administration of a smart city. The geo-spatial data requirements, increasing volumes, varying formats and qualit...
Article
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The demand of serving large 3D spatial data, mainly of urban areas, reflects the need of hierarchical data structures for 3D data. During the last years the OGC community standard I3S (Indexed 3d Scene Layer, ESRI) and 3D Tiles (Analytical Graphics, Inc.) emerged in order to deal with this challenge. Conceptually, hierarchical structures for 3D dat...
Conference Paper
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Auf Basis von 3D-Gebäudemodellen im CityGML-Standard kann mit der Simulationsplattform SimStadt unter anderem der Heiz- und Kühlenergiebedarf von Gebäuden sowie das PV Potential in Stadtquartieren berechnet werden. In der Praxis zeigt sich jedoch, dass Informationen wie Gebäudebaujahr, Sanierungsfortschritt oder genaue Angaben zur Nutzung der Gebäu...
Article
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This work describes a method for extrinsic LiDAR self-calibration of the yaw angle of a LiDAR mounted on an autonomous vehicle. The method is independent of unknown environments and expensive (but precise) localization equipment (e. g. Inertial Navigations System). However, assumptions and constraints on the road-surface and the allowed trajectory...
Article
Smart Cities nutzen Informations- und Kommunikationstechnologien für eine nachhaltige, soziale und ökologische Gestaltung des öffentlichen Raums. Hierzu ist ein urbanes Informationsmodell notwendig, das Geo-und Sensordaten mit Datenmodellen verschiedener Fachdisziplinen vernetzt. Das Konzept dieser „urbanen Plattform“ wird im vorliegenden Artikel a...
Conference Paper
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The paper analyses the potential of 3D CityGML geometry models for building heating demand simulation. Various aspects of processing 3D data to make it suitable for building simulation are discussed. To validate and calibrate the simulation models, block level aggregated heating consumption data for the city district of Stuttgart Stöckach was used...
Chapter
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Augmented Reality (AR) is a convincing technology for manipulating user's visual perception of the real world. A single image-based tracking approach is not sufficient to recognise a 3D object from different viewpoints. The basic issue of this approach is it can no longer recognise a 3D model when the viewing perspective is changed since the image...
Conference Paper
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Energetische Simulationen im urbanen und besonders im innerstädtischen Raum erfahren eine immer größere Nachfrage, z.B. um nachhaltige Stadtentwicklung zu betreiben. 3D Stadtmodelle sind hierfür gut geeignet. Diese können durch Simulationssoftware wie SimStadt genutzt werden, um Wärmebedarfsanalysen zu simulieren. Viele amtliche Daten sind jedoch n...
Article
Climate protection concepts for cities and regions are designed to establish CO2 emission baselines and develop measures for climate change mitigation. Up to now such concepts were based on aggregated consumption and emission data and only qualitative estimations of the effect of measures were possible. To better quantify the impact of mitigation m...
Article
Die gemeinsame Kommission „3D-Stadtmodelle“ der Deutschen Gesellschaft für Kartographie e. V. und der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e. V. hat im November 2017 zum 9. Mal zum Workshop nach Bonn eingeladen. Rund 90 Teilnehmer nutzten die Gelegenheit, um an zwei Tagen intensiv über Ersterfassung, Visualis...
Chapter
The University of Applied Sciences Stuttgart (HFT Stuttgart) is one of the first German universities to be a member of the International Sustainable Campus Network (ISCN). The university aspires to become a carbon—neutral campus, and is taking part in a number of initiatives and research activities to achieve that. One of the initiatives is the Eur...
Article
Abstract 3D city models are rich data sets for urban energy analyses, providing geometrical and semantic data required to estimate the energy demand of entire districts, cities and even regions. However, given the diverse availability, uncertainty and Level of Details of these data and the resources required to collect them, managing data quality i...
Article
Building energy evaluation tools available today are only able to effectively analyse individual buildings and usually either they require a high amount of input data or they are too imprecise in energy predictions at a city (district) scale because of too many assumptions made. In this paper, two tools based on 3D models are compared to see whethe...
Article
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Virtual 3D models of cities are now being extensively employed for the estimation of thermal energy demand at varying spatial and temporal scales. Efforts in preparing and management of the datasets required for the simulations have reached an advanced stage. Thus allowing to perform city scale simulations using simplified thermal energy balance mo...
Article
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Especially in the field of numerical simulations, such as flow and acoustic simulations, the interest in using virtual 3D models to optimize urban systems is increasing. The few instances in which simulations were already carried out in practice have been associated with an extremely high manual and therefore uneconomical effort for the processing...