The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
An Electrocardiogram (ECG) signals commonly change their statistical property over time and are highly non- stationary signals. Growing of embedded technology have provide possibility for use powerful tools to analysis ECG. For the analysis of ECG signals wavelet transform is a powerful tool. In this paper, we proposed Implemented an automatic real time ECG feature extraction system based on discrete...
Optimization of sensor networks relies on accurate profiling information collected about the state of individual nodes and the network as a whole. A single fixed profiling methodology may incur significant overheads on the sensor network or produce inaccurate profiling results due to dynamic changes in application behavior at runtime. Alternatively, reconfiguring the profiling methodology at runtime...
Logarithmic periodic dipole antenna (LPDA) was constructed for monitoring Sun in the range of (45 –870) MHz to precisely match the solar monitoring requirements. In our work, we choose rod aluminium's type as a conductor with nineteenth (19) elements of different sizes. Beside established construction techniques, several test setups have done to make sure that we possibly obtain a good data. The performance...
RFID systems are emerging platforms that support a variety of pervasive applications. The problem of identifying missing tag in RFID systems has attracted wide attention due to its practical importance. This paper presents P-MTI: a Physical-layer Missing Tag Identification scheme which effectively makes use of the lower layer information and dramatically improves operational efficiency. Unlike conventional...
This article illustrates application of a concurrent dual-band RF system for human respiration and heartbeat detection. The system simultaneously operates at 2.4-/5.2-GHz band. Overall performance of the system is studied in ADS (Advanced Design System) simulation platform, wherein measured S-parameters of dual-band subsystems are utilized. In the experimental setup, signals are measured with a human...
Internet threat monitoring systems are studied and developed to comprehend the malicious activities on the Internet. On the other hand, it is known that attackers devise a technique that locates the deployment of sensors that constitute the monitoring system. This technique is called as localization attacks to Internet threat monitors. If attackers can detect sensors, they can evade them when they...
Acoustic localization by means of sensor arrays has a variety of applications, such as environment monitoring and object tracking. These tasks are appealing for implementation on embedded systems, however large dataflows and computational complexity of multi-channel signal processing impede the development of such systems. This paper proposes a method of acoustic localization in distributed systems,...
One of the challenges facing information technology (IT) security professionals is the laborious task of sifting through numerous log files in an attempt to identify malicious traffic and conduct a forensics analysis to determine an appropriate course of action. This process is complicated significantly by the volume of traffic that can be associated with a production device environment. A honey net...
The monitoring of electrical and water fixtures in the home is being applied for a variety of “smart home” applications, such as recognizing activities of daily living (ADLs) or conserving energy or water usage. Fixture monitoring techniques generally fall into two categories: fixture recognition and fixture disaggregation. However, existing techniques require users to explicitly identify each individual...
This paper presents a High Common Mode Rejection Ratio(CMRR) Instrumentation Amplifier(IA) with Driven Right Leg(DRL) circuitry for Electrocardiogram(ECG) signal acquisition. The circuit is based on the current feedback topology. The high pass and lowpass filters are integrated into the IA. DRL is implemented to minimise the common mode noise. The present design is fabricated at UMC on 0.18µm CMOS...
Cyber-physical systems are ubiquitous in power systems, transportation networks, industrial processes, and critical infrastructures. These systems need to operate reliably in the face of unforeseen failures and external malicious attacks. This paper summarizes and extends our results on the security of cyber-physical systems based on geometric control theory: (i) we propose a mathematical framework...
Daily use of electroencephalogram (EEG) could increase the effectiveness for medical applications. However, current brain monitoring technologies lack one or more characteristics necessary for daily use, such as portability, responsiveness or versatility. In this study we developed a portable prototype for high resolution real-time EEG monitoring fully integrated system. The prototype is composed...
There is a growing need across GE businesses to push system operation performance closer to design entitlement through application of advanced controls and optimization. The performance requirements coupled with stringent operability boundaries necessitate systematic design of sensing networks for condition monitoring across applications such as power plants, aviation, etc. This paper addresses the...
This paper provides a solution for distributed input and state estimation, simultaneously. A set of sensors with the capability of exchanging information is used to collect data from a discrete-time system. Various distributed implementations of Kalman filter have already been developed to track system states in such a setup when the system is subject to noise with known stochastic properties. However,...
The method of quality monitor based on wavelet filtering was proposed to solve the problems of quality control in multi-operation manufacturing processes, whose measurement data contained noise information. The multi-operation machining process quality control model based on the Stream of Variation (SoV) technology was built, which considered the error propagation. Based on this, the method of discrete...
A wireless 8-channel biopotential acquisition system for capturing electrocardiogram (ECG) using dry electrodes is presented. The ECG system consists of copper electrodes, a micropowered 8-channel custom ASIC, and an off-the-shelf microprocessor and bluetooth radio. Each analog channel of the custom ECG front-end is composed of a chopper-modulated instrumentation amplifier (CMIA) with chopping spike...
Wearable sensors in Wireless Body Area Networks (WBANs) provide health and physical activity monitoring. Modern communication systems have extended this monitoring remotely. In this survey, various types of wearable sensors discussed, their medical applications like ECG, EEG, blood pressure, detection of blood glucose level, pulse rate, respiration rate and non medical applications like daily exercise...
This paper reports a capacitive sensor system to monitor the meniscus motion during the droplet generation at a nozzle orifice for inkjet applications. As the nominal capacitance value of the sensor is at only fF-level with an expected resolution of about 10 aF, suppression of the parasitic components and reduction of the electrical noise are extremely relevant. The sensor is fabricated with a bulk...
This article describes a GNSS monitoring station over the L band. The monitoring is performed in two different ways: over the signal's spectrum by means of statistical analysis and in the range domain determining the horizontal protection level. The horizontal protection level ensures that the user's location is within a certain range with a certain probability and is used as input in decision making...
In the lithium-ion batteries for an electric-drive vehicle, the cell balancing is required to enhance life time of batteries and to guarantee safety. In the vehicle-to-grid (V2G) system, batteries of electric-drive vehicle are more frequently charged or discharged, which increases probability of cell imbalance. Therefore, battery management system (BMS) with efficient cell balancing operation is necessary...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.