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The primary goal of this paper is to investigate what could have made successful Google's OpenSpot, a crowdsensing based parking assistance application cancelled in 2012. For this analysis we have developed UPark, a simulation environment capable of simulating large numbers of vehicles, which look for optimal parking spots in busy urban environments and whose drivers might inform others when they...
This paper presents an algorithm for one-line diagram generation of multiple interconnected, i.e. weakly meshed, feeders supplied by one distribution substation. The substation area is modeled with a mathematical graph, which is then prepared and drawn in multiple steps. A vertex propagation algorithm is applied starting at the substation vertex to traverse the whole graph and disconnect interconnected...
In this paper existing means of realization of Common Information Model (CIM) profiles are analyzed with the focus on human readability. The IEC 61970-501 standard describes the process of mapping CIM into XML using the RDF Schema. In practice, CIM profiles may be defined using standardized CIM RDF Schema, or using OWL having both of them expressed in RDF/XML serialization format. Also, they may be...
This paper introduces a simulation environment developed for analyzing crowd-sensing based applications in the Smart City application domain. As a case study, an urban parking application scenario is investigated and presented. In this scenario, smart citizens collect and share parking related events, such as leaving or occupying a free parking spot. These events can be presented on a real-time city...
This paper presents a one line diagram generation algorithm capable of drawing multiple feeders supplied by a single (electric power) distribution substation. First the substation area is represented with a mathematical graph. A combination of iterative and recursive methods are applied to draw that graph. There are two iterative steps: the whole graph is partitioned into feeders and the main branch...
This paper presents an electric power distribution system (EPDS) visualization algorithm which performs graph partitioning before generating the visual representations, i.e. one line diagrams. The proposed algorithm is different from similar algorithms as it performs graph partitioning to reduce the solution space. The partitioning step is necessary because modern EPDS can consist of thousands of...
This paper describes an algorithm which automatically generates adaptive one-line diagrams of large electric power distribution systems. The proposed algorithm is different from similar algorithms as it performs adaptive one-line diagram generation, which differ for various zoom levels, showing only the most important objects (e.g. substations, pole switches, power lines) on small zoom levels and...
This paper presents an algorithm for automatic one-line diagram generation for power distribution systems. These systems are large and their mathematical graph representations consist of (up to) thousands of vertices (substations, junctions, pole switches) and edges (i.e. power lines). Their succinct visualization is essential in SCADA applications where a well constructed one-line diagram enables...
This paper analyzes various algorithms for the automatic generation of electric power system one-line diagrams. Historically these one-line diagrams were created manually. As these diagrams can be large, their manual creation takes a lot of time and resources, and it is also prone to errors. One possible solution to this problem is the automatic generation of one-line diagrams. Automatic visualization...
This paper shows one possible way to enhance power system software integration by leveraging RESTful web services in the process of publishing power system state variables, i.e. the results of simulation functions used in power system analysis.1 Different simulation functions are executed in power system control centers with various goals: optimize network utilization, find critical elements, plan...
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