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The next generation of cellular systems are expected to experience a proliferation of the number of emerging use cases alongside supporting high speed mobile broadband services. Massive Machine Type Communication (mMTC), which caters to a large number of low-data rate and low-cost devices, is such an use case. Smart utility meters, automated sensors in farms, and vehicle tracking nodes for logistics...
Condition monitoring of wind turbine gearbox based on cointegration by vibration signals is investigated in this research. Firstly, we establish cointegration model of gearbox in normal condition and analyze the stability of the residuals calculated by cointegration model. According to the principle of cointegration, once gearbox failure occurs, the cointegration relationship is broken and the stability...
Today's buildings provide continuously growing amounts of data monitored from diverse sensors. With regard to the similarly increasing energy needs of buildings, accurate evaluation and analysis of these data can be used in order to improve energy efficiency and reduce overall energy consumption of buildings. Hence, this work introduces a comprehensive framework based on well-known data analytics...
MEMS technology has never been used for a non-imaging wearable ultrasound application, where e.g. lateral resolution is a minor issue. We combine finite element modeling and thin-plate analytic modeling and some measurements on MEMS devices, to optimize the performance of four MEMS layouts for a wearable bladder monitor. An array of square diaphragms, clamped on two sides, appears to be most favorable.
The paper deals with a methodology of detecting and localizing leakages in water distribution networks. Two approaches are presented: based on a hydraulic model of the network, and based on approximate models and fuzzy classifiers. Moreover, a case study concerning applications of the methodology to a real network in Rybnik, Poland is presented. A pilot version of the system has been running since...
This paper proposes a method to help understanding the influence of a game design on player retention. Using Far Cry® 4 data, we illustrate how playtime measures can be used to identify time periods where players are more likely to stop playing. First, we show that a benchmark can easily be performed for every game available on Steam using publicly available data. Then, we introduce how survival analysis...
At present, bridge maintenance management typically consists of regular visual building inspections. Structural damage frequently remains undiscovered until it becomes clearly visible, a situation which makes little economic sense. However, it is often the case that damage and critical reactions to a bridges internal structure occur in inaccessible and concealed places, and are caused by existing...
Service Oriented Architecture (SOA) and Software Product Line (SPL) have individually proven to be Software Engineering concepts, which are creating values for developing software systems. While SOA is being used for developing applications from an orchestration of web services, SPL has ability to prepare core sets of assets and manage with variable components. The combination of SOA and SPL has highlighted...
Currently, Business Process Model and Notation (BPMN) has becoming one of the main languages for creating a description of processes and developing executable frameworks for the management of the process itself. In this context, one important aspect of process management is the possibility of process analysis and optimization, which many times relies on real data collected during the process execution...
Beijing Metro plans to open an Automated Urban Guided Transport (AUGT) Line at the end of 2017. The line will follow GOA4 requirements according to IEC62290-2014 and IEC62267-2009. The main difference between the AUGT line and existing line is no driver or attended people on the train. The system will realize the following functions: Ensure safety movement, Driving Supervising guideway, supervising...
Both network connectivity and hidden terminal effects play a significant role in topology design of wireless sensor networks. In this paper, we present a joint analysis of the two issues. Lots of simulation studies are carried out to investigate the effects of network scale and transmitting range on the two issues. Based on the simulation results, we propose a reasonable and suitable empirical formula...
With the rapid development of regional economy in Shandong Province, the demand of electric power increases rapidly. So, the development of the substation construction and its status information detection system has led to the massive power equipment status information data, which needs to be sorted out and standardized work. In this paper, the MapReduce technology is used for the degradation processing...
The user generated data on social online platforms is a very resourceful medium for building applications. It provide an easy, cheap and efficient way to address the opinions expressed by millions of users. There are various commercial applications developed that analyze the products based on user reviews. However, no considerable research work is carried out at building applications to consume this...
This paper demonstrates the capability of a hybrid simulation tool that can perform islanding detection studies in distribution networks with photovoltaic (PV) generation systems. The hybrid tool is constructed by interfacing an electromagnetic transient (EMT) tool with the Open Distribution System Simulator (OpenDSS) which is a phasor analysis tool developed by the Electric Power Systems Institute...
Multiple InSAR techniques are increasingly being developed for earth observation. However, among them, persistent scatterers-based InSAR (PSI) techniques fail to obtain enough measurement points (MPs) in rural mountainous area due to the lack of persistent scatterers (PSs), such as ma-made structures, rocks, and outcrops, etc. In this paper, Distributed Scatterers-based InSAR (DS-InSAR) algorithm,...
The Smart Body Area Network (SmartBAN) has been proposed to support low power and low latency wireless body area networks. A SmartBAN is organized in a star topology with one hub and a group of sensor nodes. In addition to propagation delay, the uplink transmission latency of a SmartBAN is also dependent on how long a data packet generated at a sensor node has to wait prior to uplink transmission...
For the multi-rate sampling systems with time series correlation data, a multi-rate fault detection algorithm based dynamic principal component analysis is proposed. The same sampling rate can be achieved in the algorithm by interpolation-filter-decimation, and then dynamic principal component analysis is implemented. The proposed method not only makes full use of the samples in a large number of...
A contactless monitoring system for daily human activities using a stepped-frequency continuous wave (SFCW) is investigated in this paper. To detect and classify the daily human activities in a fast and accurate fashion, the phase information of the received signals is processed to determine the high-resolution range profile (HRRP), the instantaneous velocity, acceleration, and jerk. Preliminary simulation...
Credit card fraud losses in Canada continue to increase despite the availability of various prevention technologies. To reduce financial loss and reputational risks, credit card companies and financial institutions in Canada have adopted fraud monitoring solutions such as Predictive Analytics Technologies (PAT) as part of fraud prevention programs to mitigate credit card fraud. This research paper...
This paper presents the use of the Business Intelligence process and some of its technologies to perform monitoring and meta-monitoring actions on sensed data and physical components that compose an environmental monitoring platform. These actions are mainly related to the capture of data that are the input to carry out the support of the decision-making process in the regulation and control of environmental...
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