scholarly journals Analysis of Properties of an Active Linear Gesture Sensor

2017 ◽  
Vol 24 (4) ◽  
pp. 617-630 ◽  
Author(s):  
Krzysztof Czuszyński ◽  
Jacek Rumiński ◽  
Jerzy Wtorek
Keyword(s):  
Power Consumption ◽  
Design Process ◽  
Significant Role ◽  
Experimental Verification ◽  
A Priori ◽  
Smart Devices ◽  
Study Group ◽  
Statistical Research ◽  
Low Level ◽  
Accurate Localization

Abstract Basic gesture sensors can play a significant role as input units in mobile smart devices. However, they have to handle a wide variety of gestures while preserving the advantages of basic sensors. In this paper a user-determined approach to the design of a sparse optical gesture sensor is proposed. The statistical research on a study group of individuals includes the measurement of user-related parameters like the speed of a performed swipe (dynamic gesture) and the morphology of fingers. The obtained results, as well as other a priori requirements for an optical gesture sensor were further used in the design process. Several properties were examined using simulations or experimental verification. It was shown that the designed optical gesture sensor provides accurate localization of fingers, and recognizes a set of static and dynamic hand gestures using a relatively low level of power consumption.

scholarly journals Highly Reliable Decision-Making Using Reliability Factor Feedback for Factory Condition Monitoring via WSNs

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Zafar Iqbal ◽  
Heung-No Lee ◽  
Saeid Nooshabadi
Keyword(s):  
Decision Making ◽  
Power Consumption ◽  
Cluster Head ◽  
Base Station ◽  
False Alarms ◽  
Delivery Ratio ◽  
Probability Of Error ◽  
Reliability Factor ◽  
Packet Delivery ◽  
Low Level

Cooperation among sensors in a wireless sensor network, deployed for industrial monitoring in an indoor scenario, is a topic of interest in the smart factory and smart city research. The indoor wireless communication channel is very harsh and the observations of all the sensors cannot be sent reliably to the base station. Failure to transmit correct sensing results to the base station may result in false alarms or missed detection of events. Therefore, we propose a cooperation scheme for the wireless sensors to send the data reliably to the base station. Our aim is to increase the reliability of the received information, reduce the probability of error, lower the overall power consumption, and keep the latency to an acceptable low level. We propose a reliability factor feedback algorithm to adjust the weight of unreliable sensors in the decision-making process. The proposed scheme is analyzed based on its latency, power consumption, and packet delivery ratio. Our results show significant improvement in the reliability of the received data, improved packet delivery, and reduced false alarm ratio for full repetition and cluster head-based cooperation. The power consumption and latency in data transmission are also kept to an acceptable low level.

scholarly journals Integrated approach for efficient power consumption and resource allocation in MIMO-OFDMA

2020 ◽  
Vol 10 (2) ◽  
pp. 2069
Author(s):  
Archana B. ◽  
T. P. Surekha
Keyword(s):  
Resource Allocation ◽  
Performance Analysis ◽  
Wireless Communication ◽  
Power Consumption ◽  
Data Rate ◽  
High Data Rate ◽  
Smart Devices ◽  
Ofdma System ◽  
High Data ◽  
Redundant Data

The growing interest towards wireless communication advancement with smart devices has provided the desired throughput of wireless communication mechanisms. But, attaining high-speed data packets amenities is the biggest issue in different multimedia applications. Recently, OFDM has come up with the useful features for wireless communication however it faces interference issues at carrier level (intercarrier interferences). To resolve these interference issues in OFDM, various existing mechanisms were utilized cyclic prefix, but it leads to redundancy in transmitted data. Also, the transmission of this redundant data can take some more power and bandwidth. All these limitations factors can be removed from a parallel cancellation mechanism. The integration of parallel cancellation and Convolution Viterbi encoding and decoding in MIMO-OFDMA will be an effective solution to have high data rate which also associations with the benefits of both the architectures of MIMO and OFDMA modulation approaches. This paper deals with this integrated mechanism for efficient resource allocation and power consumption. For performance analysis, MIMO-OFDMA system is analyzed with three different approaches likeMIMO-OFDM system without parallel cancellation (MIMO-OFDMA-WPC), MIMO-OFDMA System with parallel cancellation (MIMO-OFDMA-PC) and proposed IMO-OFDMA system with parallel cancellation and Convolution Viterbi encoding/decoding (pMIMO-OFDMA-PC &CVed) for 4x4 transmitter and receiver. Through performance analysis, it is found that the proposed system achieved better resource allocation (bandwidth) with high data rate by minimized BER rate and achieved least power consumption with least BER.

Design and experimental verification of a smart sensor to measure the energy and power consumption in a one-phase AC line

Measurement ◽  
2009 ◽  
Vol 42 (3) ◽  
pp. 412-419 ◽  
Author(s):  
D. Ramírez Muñoz ◽  
D. Moro Pérez ◽  
J. Sánchez Moreno ◽  
S. Casans Berga ◽  
E. Castro Montero
Keyword(s):  
Power Consumption ◽  
Experimental Verification ◽  
Smart Sensor

A Novel Ship Subdivision Method and its Application in Constraint Management of Ship Layout Design

2011 ◽  
Vol 27 (03) ◽  
pp. 137-145 ◽  
Author(s):  
Deniz de Koningh ◽  
Herbert Koelman ◽  
Hans Hopman
Keyword(s):  
Design Process ◽  
Early Stage ◽  
A Priori ◽  
Layout Design ◽  
Management Program ◽  
Management Tool ◽  
Constraint Management ◽  
Damage Stability ◽  
Actual Design ◽  
The Impact

Conventionally, the rooms and spaces of a ship are either modeled as volumetric entities, or with the aid of bulkheads and decks. According to our knowledge, no simple representation exists where both entities can be modeled independently, and where automated conversion from one view (volumetric) to the other (planes) is possible. This paper introduces a simple yet effective approach, where a ship designer can mix the use of volumes and planes in any fashion. Furthermore, this modeling method is applied in a novel tool to manage ship subdivision constraints. As quite a few numerical constraints are known a priori, they can be defined in a list and assigned to specific subdivision elements. Examples are bulkhead locations or required tank volumes or deck areas. A constraint management tool is developed that evaluates the ship layout design during the design process. The designer will be able to modify or add constraints, and the tool will support the designer by managing these constraints during the design process. If the hull form changes, all submitted rules will be updated according to the new main particulars. If one of the constraints does not comply, an adjustment or alternative can be chosen at that moment and the impact of this change is directly visible. The designer can also ask the tool to provide a ship layout design that complies best with the constraints entered. When the Constraint Management program is used, a feasible ship compartment design can be made in a quick manner and the designer is kept from making errors. This means that a correct ship layout model is available on which probabilistic damage stability calculations and weight estimations can be performed in an early stage. This method has been implemented in a computer program, so actual design examples are discussed.

Enhanced RSA key encryption application for metering data in smart grid

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Anita Philips ◽  
Jayakumar Jayaraj ◽  
Josh F.T. ◽  
Venkateshkumar P.
Keyword(s):  
Smart Grid ◽  
Energy Management ◽  
Electrical Power ◽  
Prime Numbers ◽  
Combination Method ◽  
Smart Devices ◽  
Smart Meter ◽  
Content Type ◽  
Efficient Energy ◽  
Low Level

Purpose Digitizing of the electrical power grid promotes the advantages of efficient energy management alongside the possibilities of major vulnerabilities. A typical inadequacy that needs critical attention to ensure the seamless operation of the smart grid system remains in the data transmission between consumer premises smart devices and the utility centres. Many researches aim at establishing security protocols to ensure secure and efficient energy management resulting in perfect demand–supply balance. Design/methodology/approach In this paper, the authentication of the smart meter data has been proposed with enhanced Rivest–Shamir–Adleman (RSA) key encryption using an efficient way of generating large prime numbers. The trapdoor one-way function applied in the RSA algorithm makes it almost impossible for the reverse engineering attempts of cracking the key pair. Findings The algorithm for generating prime numbers has been tested both with the convention method and with the enhanced method of including a low-level primality test with a first few hundred primes. The combination of low-level and high-level primality tests shows an improvement in execution time of the algorithm. Originality/value There is a considerable improvement in the time complexities when using the combination method. This efficient generation of prime numbers can be successfully applied to the smart meter systems, thereby increasing the strength and speed of the key encryption.

scholarly journals Design of a tablet holder with the help of Axiomatic Design International Conference of Axiomatic Design 2017

2018 ◽  
Vol 223 ◽  
pp. 01009
Author(s):  
Auðunn Herjólfsson ◽  
Haraldur Helgason ◽  
Sindri S. Ingvason ◽  
þráinn þórarinsson ◽  
Joseph Timothy Foley
Keyword(s):  
Design Process ◽  
Axiomatic Design ◽  
Design Parameters ◽  
Smart Devices ◽  
Functional Requirements ◽  
Modern Life ◽  
Customer Needs ◽  
International Conference ◽  
Viewing Experience

With the explosion of smart devices, tablets can currently be found everywhere. From schools to kiosks to watching movies in bed, these devices are prevalent everywhere in modern life. The problem with watching movies in bed using tablets is the necessity of hand usage. The market currently holds a few products that attempt to solve this, but none truly frees the user, allowing them hands-free usage with an easy exit of the bed. In this paper, we will describe a design which, utilizing axiomatic design, will out-perform anything currently existing in the same field, by giving a stable viewing experience while fitting to nearly any bed or sofa. Axiomatic Design ensured a comprehensive design process by ensuring customer needs were transformed into carefully thought out functional requirements and design parameters while maintaining modularity.

scholarly journals Vibration Data Processing for Bedload Monitoring in Underwater Environments

2020 ◽  
Vol 12 (17) ◽  
pp. 2797
Author(s):  
Gabriel Vasile
Keyword(s):  
Data Processing ◽  
Total Energy ◽  
Steel Plate ◽  
A Priori ◽  
A Priori Knowledge ◽  
Vibration Spectra ◽  
Vibration Data ◽  
Accurate Localization ◽  
Set Up ◽  
Processing Framework

This paper proposes a novel data processing framework dedicated to bedload monitoring in underwater environments. After calibration, by integration the of total energy in the nominal bandwidth, the proposed experimental set-up is able to accurately measure the mass of individual sediments hitting the steel plate. This requires a priori knowledge of the vibration transients in order to match a predefined dictionary. Based on unsupervised hierarchical agglomeration of complex vibration spectra, the proposed algorithms allow accurate localization of the transients corresponding to the shocks created by sediment impacts on a steel plate.

A Prototype Web-Based Custom Product Specification System

2003 ◽  
Author(s):  
Ronald S. Farrell ◽  
Gary Stump ◽  
Jaeil Park ◽  
Timothy W. Simpson
Keyword(s):  
Design Process ◽  
A Priori ◽  
Cost Effective ◽  
Product Variety ◽  
Product Line ◽  
Web Based ◽  
Product Platforms ◽  
Design Interfaces ◽  
Infinite Variety ◽  
Product Specification

For companies who must provide customized products on demand, it is important that the voice of the customer be addressed and incorporated early into the design process. Web-based design interfaces have emerged as useful tools to make customer voices interactive and provide a customer-friendly and cost-effective interface. The effectiveness of the interface can be greatly enhanced through implementation of a strategic customization process that can proactively react to customer requests. The design process represents a virtual product line that approaches the goal of providing infinite variety at minimal costs. The process provides a base for a true customization approach, which is different from the typical mass customization approach to provide ample but limited product variety a priori for a targeted market. In this paper, we describe the development of a prototypical custom product specification system and the underlying strategic design process that is based on a collection of product platforms. The development is illustrated using an example from on-going research with a company that produces customized valves for the power industry.

An affordance-based approach for generating user-specific design specifications

2015 ◽  
Vol 29 (3) ◽  
pp. 281-295 ◽  
Author(s):  
Phillip Cormier ◽  
Kemper Lewis
Keyword(s):  
Human Factors ◽  
Design Process ◽  
Ad Hoc ◽  
A Priori ◽  
Field Of View ◽  
Personal Knowledge ◽  
Specific Design ◽  
Design Processes ◽  
Design Specifications ◽  
Individual Design

AbstractWhen developing an artifact, designers must first understand the problem. This includes the benefits that the artifact must deliver and the user variation that is present. Each user has a unique set of human factors, preferences, personal knowledge, and solution constraints that could potentially influence the characteristics of the artifact. Currently, there is little work supporting the process of how to formally generate user-specific design specifications, resulting in ad hoc or a priori decisions when generating design specifications. Further, because most design processes generate design specifications manually, the number of design specifications is not typically addressed at the user level. This research presents an affordance-based approach for use in the early stages of design to help designers establish user-specific design specifications. This information can then be used in the creation of a system or set of systems that meets the demands of both the user(s) and the organization that is developing the artifact. An affordance-based approach is leveraged because it maintains the relational field of view among the user, existing artifacts, and the artifact(s) being designed. Once individual design specifications are generated, designers can use this information in later stages of the design process.

scholarly journals Взаємозв’язок між інтенсивністю карієсу, структурно-функціональною резистентністю емалі та гігієною порожнини рота у дітей із карієсом оклюзійної поверхні жувальної групи зубів

2018 ◽  
Author(s):  
O. O. Shpotyuk
Keyword(s):  
Oral Cavity ◽  
Significant Role ◽  
Oral Hygiene ◽  
Strong Correlation ◽  
Study Group ◽  
Correlation Relationship ◽  
Carious Process ◽  
The Relationship

Summary. The article describes the relationship between caries intensity, oral hygiene and enamel resistance during the period of secondary mineralization of teeth is an actual task, the solution of which will be the basis for the justification of caries prevention.The aim of the study – to assess the relationship between caries intensity, oral hygiene and enamel resistance during the period of secondary mineralization of the teeth.Materials and Methods. 156 children were examined, among them 76 were between 12 and 15 years of age and 80 children aged 16 to 18 years. To assess the odor of caries of chewing teeth, the intensity of the KPV index and intensity levels according criteria were determined. The condition of hygiene of the oral cavity was estimated using the hygienic index Green-Vermilion. Structural-functional resistance was determined by the TER-test Okushko V. R., Kosareva L. I. (1983).Results and Discussion. As a result of our research, we found that with an increase in the intensity of the carious process in children of both groups of the study deterioration of the hygienic state of the oral cavity according to the OHI-S index. Also between this index and TER-test there is a strong correlation relationship. When TER-test increases the value of OHI-S index enlarges.Conclusions. Unsatisfactory level of hygiene of the oral cavity, especially during the period of active mineralization of the enamel, contributes to reducing the resistance of the enamel, which plays a significant role in the development of caries in children of the study group.

Sign in / Sign up

Export Citation Format

Share Document