Development Of Digital Electronics Research Articles

An effective parameter tuned deep belief network for detecting anomalous behavior in sensor-based cyber-physical systems

Cyber-physical system (CPS) integrates cyber systems and the corporal world to perform critical processes that are begun from the developments in digital electronics. The sensor placed in CPS is used to monitor and control processes that are vulnerable to anomalies (reliability failures and cyber-attacks). For the detection of anomalies and prevention of destructive issues, Abnormality Detection System (ADS) is introduced. But ADS suffered from a false alarm rate and missed detection rate, which has resulted in the degraded performance in CPS applications. A novel deep learning approach for detecting Anomalous Behavior in sensor-based CPS is presented in this study. Preprocessing is used in the conceptual scheme to remove noisy data. CPS irregularity is then detected using a DL-based deep belief network (DBN) framework. Furthermore, the number of hidden layers, number of iterations, period frequency, and learning rate of DBN are all tuned using a squirrel search algorithm (SSA). Several tests were conducted with the help of data from device CPS to validate the performance of the SSA-DBN model. To assure the SSA-DBN framework's appropriate detection accuracy, a complete comparable study is conducted, and the produced extensive experiments confirmed the framework's outstanding quality on the applicable information over the comparable approaches.

An Overview of Periodic Wireless Sensor Networks to The Internet of Things

Through developments in digital electronics and wireless technology, a variety of tiny devices have begun to be used in many aspects of everyday life. These devices can sense, compute and communicate. These typically consist of low-power radios, many smart sensors, and integrated CPUs. Such devices are utilized to establish a wireless sensor network (WSN) essential for the delivery of sensing services and monitoring of weather conditions. The concept of the Internet of things (IoT) is formed in conjunction with WSNs, where IoT can be described as an interconnection between recognizable devices in sensing and monitoring processes inside the internet networks. This paper offers a description of Periodic WSNs in general. It also offers an overview of the PWSN applications and challenges.

Speckle pattern analysis of crumpled papers.

In this paper, we show that laser speckle analysis (LSA) can provide valuable information about the structure of crumpled thin sheets. Crumpling and folding of slender objects are present in several phenomena and in various ranges of size, e.g., paper compaction, cortical folding in brains, DNA packing in viral capsids, and flower buds, to name a few. The analysis of laser speckles, both numerical and graphical, is a source of information about the activity of biological or non-biological materials, and the development of digital electronics, which brought the ease of image processing, has opened new perspectives for a spectrum of LSA applications. LSA is applied on randomly crumpled and one-, two-, and three-times folded papers, and appreciable differences in LSA parameters are observed. The methodology can be applied for easy-to-implement quantitative assessment of similar phenomena and samples.

The Modelling and Simulation of Bipolar Hybrid Stepping Motor by Matlab/Simulink

Abstract Development of digital electronics and microcontroller systems has led to development of electrical motors capable to tee digitally controlled. These motors are widely known as stepper motors and the enable transformation of pulsed electrical excitation into mechanical energy. Matlab/Simulink is used as a simulation tool for bipolar stepper motor enabling motor transient characteristics of current, voltage, torque and speed to be obtained. Different operating motor regimes are simulated as no-load and rated load operation. Te obtained results are in good accordance with the theoretical expectation and with the results of analytical computations. Adequate conclusions regarding motor performance characteristics are derived.

Algorithms for pulse shape analysis using silicon detectors

The development of digital electronics and their application to nuclear spectroscopy has provided an opportunity to perform experiments beyond the technical capabilities of analog systems. The pulse-shape analysis of Si detectors is described here for the selective identification of pile-up pulses resulting from the sequential alpha decay of 109Xe and 105Te isotopes. A two stage offline pulse shape analysis algorithm is described which is able to detect pile-up pulses from the two alpha decays with time differences between the two individual pulses as low as 100 ns over a wide range of relative amplitudes.

Industrial power quality considerations when installing adjustable speed drive systems

Developments in digital electronics and power semiconductors have led to a rapid increase in the use of nonlinear devices including adjustable speed drives. For this reason harmonics have become a common problem in many industrial electrical systems. The importance of a complete power system analysis prior to the installation of new equipment is discussed in this paper. Methods of harmonic mitigation and the effect of the IEEE 519 Guideline-1992 on industry are also discussed.

Fibre optics in power systems — the Cigré perspective

Reflecting developments in digital electronics and information technology, the growth in applications of fibre optics within the power-generation and transmission industry seems bound to continue. The unknowns are how fast fibre optics will be adopted and where it will have the greatest impact

On-line computers in classical chemical analyse

Developments in digital electronics enable classical chemical analysis to regain some of the terrain lost to instrumental techniques. In chemical analysis, computerization can provide higher precision, higher speed and lower costs. The value of interactive systems in routine work is emphasized.

Recent developments in digital electronics

Recent developments in digital electronics