scholarly journals Development and Validation of an ISA100.11a Simulation Model for Accurate Industrial WSN Planning and Deployment

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3600
Author(s):  
Zoltan Padrah ◽  
Andra Pastrav ◽  
Tudor Palade ◽  
Ovidiu Ratiu ◽  
Emanuel Puschita
Keyword(s):  
Simulation Model ◽  
Wireless Sensor ◽  
Industrial Wireless Sensor Networks ◽  
Simulation Accuracy ◽  
Design And Optimization ◽  
Proposed Model ◽  
Field Device ◽  
And Performance ◽  
Development And Validation ◽  
Test Scenarios

During the planning, design, and optimization of an industrial wireless sensor network (IWSN), the proposed solutions need to be validated and evaluated. To reduce the time and expenses, highly accurate simulators can be used for these tasks. This paper presents the development and experimental validation of an ISA100.11a simulation model for industrial wireless sensor networks (IWSN). To achieve high simulation accuracy, the ISA100.11a software stack running on two types of certified devices (i.e., an all-in-one gateway and a field device) is integrated with the ns-3 simulator. The behavior of IWSNs is analyzed in four different types of test scenarios: (1) through simulation using the proposed ISA100.11a simulation model, (2) on an experimental testbed using ISA100.11a certified devices, (3) in a Gateway-in-the-loop Hardware-in-the-loop (HIL) scenario, and (4) in a Node-in-the-loop HIL scenario. Moreover, the scalability of the proposed simulation model is evaluated. Several metrics related to the timing of events and communication statistics are used to evaluate the behavior and performance of the tested IWSNs. The results analysis demonstrates the potential of the proposed model to accurately predict IWSN behavior.

scholarly journals A Measurement-Based Frame-Level Error Model for Evaluation of Industrial Wireless Sensor Networks

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3978 ◽  
Author(s):  
Yun-Shuai Yu ◽  
Yeong-Sheng Chen
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Ieee 802.15.4 ◽  
Error Model ◽  
Wireless Sensor ◽  
Estimation Accuracy ◽  
Smart Manufacturing ◽  
Industrial Wireless Sensor Networks ◽  
Proposed Model ◽  
Transmission Quality

Industrial wireless sensor networks (IWSNs) are a key technology for smart manufacturing. To identify the performance bottlenecks in an IWSN before its real-world deployment, the IWSN must first be evaluated through simulations using an error model which accurately characterizes the wireless links in the industrial scenario within which it will be deployed. However, the traditional error models used in most IWSN simulators are not derived from the real traces observed in industrial environments. Accordingly, this study first measured the transmission quality of IEEE 802.15.4 in a one-day experiment in a manufacturing factory and then used the measurement records to construct a second-order Markov frame-level error model for simulating the performance of an IWSN. The proposed model was incorporated into the simulator of OpenWSN, which is an industrial WSN implementing the related IEEE and IETF standards. The simulation results showed that the proposed error model improved the accuracy of the estimated transmission reliability by up to 12% compared to the original error model. Moreover, the estimation accuracy improved with increasing burst losses.

scholarly journals Research on Secure Localization Model Based on Trust Valuation in Wireless Sensor Networks

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Peng Li ◽  
Xiaotian Yu ◽  
He Xu ◽  
Jiewei Qian ◽  
Lu Dong ◽  
...  
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Wireless Sensor ◽  
Malicious Nodes ◽  
Position Information ◽  
Secure Localization ◽  
Localization Algorithms ◽  
Localization Model ◽  
Proposed Model ◽  
And Performance

Secure localization has become very important in wireless sensor networks. However, the conventional secure localization algorithms used in wireless sensor networks cannot deal with internal attacks and cannot identify malicious nodes. In this paper, a localization based on trust valuation, which can overcome a various attack types, such as spoofing attacks and Sybil attacks, is presented. The trust valuation is obtained via selection of the property set, which includes estimated distance, localization performance, position information of beacon nodes, and transmission time, and discussion of the threshold in the property set. In addition, the robustness of the proposed model is verified by analysis of attack intensity, localization error, and trust relationship for three typical scenes. The experimental results have shown that the proposed model is superior to the traditional secure localization models in terms of malicious nodes identification and performance improvement.

scholarly journals Contact Modeling and Performance Evaluation of a Radial Standing Wave Ultrasonic Motor

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Chunrong Jiang ◽  
Xiaoxiao Dong ◽  
Long Jin ◽  
Danhong Lu
Keyword(s):  
Standing Wave ◽  
Structural Parameters ◽  
Ultrasonic Motor ◽  
Contact Model ◽  
Force Transmission ◽  
Continuous Contact ◽  
Design And Optimization ◽  
Proposed Model ◽  
Calculation Results ◽  
And Performance

The focus of this paper is to propose a contact model of a radial standing wave ultrasonic motor in order to evaluate the motor performance accurately. The contact behavior between the stator and rotor is characterized by test and a continuous contact on the contact interface is confirmed. A contact model describing the continuous contact is then developed with analytical method. The stator vibration, the force transmission between the stator and rotor, and the output of the motor are analyzed. The impacts of different vibration amplitudes and structural parameters on the performances of the motor are evaluated based on the proposed model. Finally, a test platform for measuring the performance of the motor is built and torque-speed curves of the motor under different voltages are measured. The accuracy of the contact model is verified by comparison between measurement and calculation results. The proposed model not only can be used for design and optimization of the radial standing wave ultrasonic motor but also offers insight into the contact mechanics of standing wave ultrasonic motors.

Pre-Vaccination and Quarantine Approach for Defense Against Worms Propagation of Malicious Objects in Wireless Sensor Networks

2020 ◽  
pp. 1233-1251
Author(s):  
Rudra Pratap Ojha ◽  
Pramod Kumar Srivastava ◽  
Goutam Sanyal
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Experimental Studies ◽  
Wireless Sensor ◽  
Proposed Model ◽  
Propagation Dynamics ◽  
And Performance ◽  
The Stability ◽  
Operational Constraints ◽  
Communication Radius

Network security poses a challenge to wireless sensor networks (WSNs) achieving its true potential. It is hard to tackle due to operational constraints of networks. Worms have become an emergent threat to the wireless networks. The spread of worms in the network is epidemic in nature. This article proposes a novel mathematical model with pre-vaccination and quarantine for study of worm propagation dynamics in WSN that is based on epidemic model. Further, the authors have devised an expression to determine threshold communication radius and node density. The objective of this proposed model is to study the propagation dynamics of worms in wireless sensor networks. Through the model, investigate the stability condition of networks in the presence of malicious codes. The experimental studies indicate that the proposed model outperforms in terms of security and energy efficiency over other existing models. It is a leap toward worm-controlling mechanisms in sensor networks. Finally, the control mechanism and performance of the proposed model is validated through extensive simulation results.

Pre-Vaccination and Quarantine Approach for Defense Against Worms Propagation of Malicious Objects in Wireless Sensor Networks

2018 ◽  
Vol 9 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Rudra Pratap Ojha ◽  
Pramod Kumar Srivastava ◽  
Goutam Sanyal
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Experimental Studies ◽  
Wireless Sensor ◽  
Node Density ◽  
Proposed Model ◽  
Propagation Dynamics ◽  
And Performance ◽  
The Stability ◽  
Operational Constraints

Network security poses a challenge to wireless sensor networks (WSNs) achieving its true potential. It is hard to tackle due to operational constraints of networks. Worms have become an emergent threat to the wireless networks. The spread of worms in the network is epidemic in nature. This article proposes a novel mathematical model with pre-vaccination and quarantine for study of worm propagation dynamics in WSN that is based on epidemic model. Further, the authors have devised an expression to determine threshold communication radius and node density. The objective of this proposed model is to study the propagation dynamics of worms in wireless sensor networks. Through the model, investigate the stability condition of networks in the presence of malicious codes. The experimental studies indicate that the proposed model outperforms in terms of security and energy efficiency over other existing models. It is a leap toward worm-controlling mechanisms in sensor networks. Finally, the control mechanism and performance of the proposed model is validated through extensive simulation results.

The Influence of Cognitive and Affective Reactions to Feedback on Subsequent Goals

2010 ◽  
Vol 15 (2) ◽  
pp. 121-131 ◽  
Author(s):  
Remus Ilies ◽  
Timothy A. Judge ◽  
David T. Wagner
Keyword(s):  
Performance Feedback ◽  
Business School ◽  
Structural Equation ◽  
Emotional Reactions ◽  
Equation Model ◽  
Proposed Model ◽  
And Performance ◽  
Dispositional Measure ◽  
The Relationship ◽  
Reactions To Feedback

This paper focuses on explaining how individuals set goals on multiple performance episodes, in the context of performance feedback comparing their performance on each episode with their respective goal. The proposed model was tested through a longitudinal study of 493 university students’ actual goals and performance on business school exams. Results of a structural equation model supported the proposed conceptual model in which self-efficacy and emotional reactions to feedback mediate the relationship between feedback and subsequent goals. In addition, as expected, participants’ standing on a dispositional measure of behavioral inhibition influenced the strength of their emotional reactions to negative feedback.

An Analytical Transient Tire Model

2001 ◽  
Vol 29 (2) ◽  
pp. 108-132 ◽  
Author(s):  
A. Ghazi Zadeh ◽  
A. Fahim
Keyword(s):  
Transient Behavior ◽  
Stability Control ◽  
Vehicle Stability ◽  
Tire Model ◽  
Steering Angle ◽  
First Order ◽  
Vehicle Stability Control ◽  
Proposed Model ◽  
Depth Study ◽  
And Performance

Abstract The dynamics of a vehicle's tires is a major contributor to the vehicle stability, control, and performance. A better understanding of the handling performance and lateral stability of the vehicle can be achieved by an in-depth study of the transient behavior of the tire. In this article, the transient response of the tire to a steering angle input is examined and an analytical second order tire model is proposed. This model provides a means for a better understanding of the transient behavior of the tire. The proposed model is also applied to a vehicle model and its performance is compared with a first order tire model.

Sign in / Sign up

Export Citation Format

Share Document