M. Botella-Campos, L. Parra, S. Sendra, Jaime Lloret
{"title":"WLAN IEEE 802.11b/g/n Coverage Study for Rural Areas","authors":"M. Botella-Campos, L. Parra, S. Sendra, Jaime Lloret","doi":"10.1109/ICCAD49821.2020.9260568","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260568","url":null,"abstract":"With the boost of precision agriculture, Wi-Fi products have become very relevant due to their broad range of connectivity options. Nowadays, technology can improve many facets of farming practice by collecting data, such as weather conditions or soil quality. Moreover, they can better control the output of the production which would enhance business efficiency and lead to higher revenues. However, the lack of collated experimental data difficult the development of prediction procedures to determine the effects of vegetation in radio coverage. In this paper, an empiric radio coverage model for WLAN outdoor in agriculture scenarios is presented. This model is based on the free field propagation equation, taking into account the losses due to vegetation. To do this, experimental data was collected at an orange tree plantation. We measured the effects when there are trees, near the trees and far from the trees in order to compare the signal losses. Our experiments provided us the equation given by the signal losses in an orange tree plantation, which could be very useful for designing Wireless Sensor Networks in precision agriculture.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126972131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synergetic Synthesis of Control of Longitudinal Flight Dynamics of UAV in the Presence of Wind Disturbances with Input Constraints","authors":"G. Veselov, Aline Ingabire","doi":"10.1109/ICCAD49821.2020.9260535","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260535","url":null,"abstract":"A synergetic control theory (SCT) approach is proposed in this paper to control the longitudinal flight dynamics of a fixed-wing Unmanned Aerial Vehicle (UAV) in the presence of wind disturbances with input constraints. The main goal of this work is to design a synergetic method for the synthesis of nonlinear control systems for a fixed-wing UAV, which guarantees the asymptotic stability of the closed-loop systems when moving along a given trajectory, stability and adaptability with significant nonlinearity of mathematical models for controlling fixed-wing UAVs in the presence of wind disturbances. Furthermore, an important task in the synthesis of control systems for various objects, including UAV, is to take into account constraints on the control inputs of the UAV. The effectiveness of the proposed approach to the synergetic synthesis of control strategies is confirmed by the results of a computer simulation of the synthesized nonlinear vector control system of fixed-wing UAV. The proposed synergetic method of control system synthesis for fixed-wing UAV can be applied for the development of advanced flight simulation and navigation complexes that simulate the fixed-wing UAV behavior in the presence of wind disturbances and serve as a basis for improving the flight performance of the fixed-wing UAV.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133901550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A modified numerical model for DNI prediction under clear sky: Case study of the south of Tunisia","authors":"K. Belkilani, A. Othman, M. Besbes","doi":"10.1109/ICCAD49821.2020.9260492","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260492","url":null,"abstract":"Having enough knowledge of the basic solar components, including Direct Normal Irradiation (DNI), Diffuse Horizontal Irradiance (DHI) and Global Horizontal Irradiation (GHI), is greatly significant to concentrated solar power (CSP) projects. (DNI), the amount of direct irradiance received on a plane normal to the sun, is of remarkable usefulness to CSP technologies around the world. However, in Tunisia, the field of solar energy generation faces twofold challenges. First, the unique type of solar concentrating collectors works only on global horizontal irradiation (GHI) which is the geometric sum of DNI and DHI. Second, these collectors are available in a limited number of locations.Regarding this additional review of hourly DNI, our approach to the real time assessment of the clear sky DNI gives a good estimation in the worst case the mean absolute error equal to 40 W/m² for hourly values in comparison to the measured data.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132178818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Systemic model for decision support in selective risk-based maintenance scheduling","authors":"B. Crestani, M. Dain, J. Flaus","doi":"10.1109/ICCAD49821.2020.9260533","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260533","url":null,"abstract":"Industrial companies, especially in petrochemical industry, have to reach ever more higher objectives of availability and reliability to satisfy their customers’ needs while remaining profitable and safe. Their whole organization has to be implied to do so. Maintenance activity and turnarounds scheduling are major contributors to the achievement of these objectives and have to deal with this change in practices. To accompany the practitioners, this paper offers a systemic model based on a systematic review of the processes, constraints and stakeholders that contribute to the decision-making in turnarounds scheduling, to serve as decision support in a selective risk-based maintenance approach. The objective of this paper is to position turnarounds scheduling in the organization of an industrial company in order to integrate realistic constraints, impacts and objectives for future works of scheduling simulation and optimization.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128915680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A review of combined safety and security risk analysis approaches: Application and Classification","authors":"T. Oueidat, J. Flaus, François Massé","doi":"10.1109/ICCAD49821.2020.9260512","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260512","url":null,"abstract":"For many years, malicious cyber-attackers have been targeting the industrial control systems (ICSs) that manage the critical infrastructure. Industries become vulnerable to cyberattacks, following the introduction of new technologies in their production processes. Cyber-security becomes a critical subject that treatment can be improved: it is a little taken into consideration in humans and environmental risk analysis, despite the common points with the risks related to cyber-security. In this article the approaches that combined the security and safety in risk analysis are presented and applied to a case study to evaluate and compare them, this evaluation allows us to find the best way to propose our future risk analysis approach.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127386496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Labdai, A. Alibi, L. Chrifi-Alaoui, S. Drid, B. Hemici, L. Nezli
{"title":"Indirect Fuzzy Adaptive Synchronization and Control of a Grid-Connected DFIG-Based WECS","authors":"S. Labdai, A. Alibi, L. Chrifi-Alaoui, S. Drid, B. Hemici, L. Nezli","doi":"10.1109/ICCAD49821.2020.9260495","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260495","url":null,"abstract":"In this paper, we propose an indirect adaptive control strategy for a Doubly Fed Induction Generator (DFIG) based Wind Energy Conversion System (WECS) linked to both external loads and the electrical grid. This configuration is widely used in smart buildings when the building has a positive power it can inject the excess amount directly to the grid. Our objective is to ensure the fast-tracking and boundless of all signals in both stages of synchronization and power regulation. The proposed technic is independent of the system model and guarantees the robustness against external (load changes) and internal perturbations (speed changes…etc.). The fuzzy adaptive system is used to estimate in real-time the nonlinear functions of the system, the control law with the proposed adaptation laws ensure the stability of the controller with the DFIG based WECS. Numerical and graphical Simulation results illustrate the efficiency of the proposed scheme for both synchronization and power control.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132067803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Vector-Based Back Propagation Algorithm of Supervised Convolution Neural Network","authors":"Nesrine Wagaa, H. Kallel","doi":"10.1109/ICCAD49821.2020.9260520","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260520","url":null,"abstract":"The primary goal of this paper is to analyze the impact of the convolution operation on the model performance. In this context, to avoid the mathematical complexities behind the Convolution Neural Network (CNN) model, the classical convolution operation is substituted by a new proposed matrix operation. The model considered is composed of one convolution layer in series with a set of fully connected hidden layers. The network parameters (filters, weights, and biases) are updated using the back propagation gradient descent algorithm. The model performance is improved through the variation of the width and height CNN hyper-parameters. MNIST data are considered here for the classification of handwritten numbers. With a simple modification of the CNN hyper-parameters using the new proposed matrix operation, a CNN performance of 98.83% was achieved.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116735543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A New Functional Observer Design of linear Singular Systems with an additional unknown input and variable time delay in Time and Frequency domains","authors":"Fatma Hamzaoui, M. Khadhraoui, H. Messaoud","doi":"10.1109/ICCAD49821.2020.9260517","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260517","url":null,"abstract":"In this paper, we propose both time and frequency domain design of an Unknown Input Functional Observer for linear singular systems with variable time delays injected into the state and the input vectors. This technique provides also an estimation of the unknown input existing on state and output equations. The design procedure is obtained by considering time domain solution, based on Lyapunov-Krasovskii stability theory. The proposed observer is characterized by a gain which is the solution of Linear Matrix Inequalities (LMI) conditions. The frequency procedure design is derived from time domain results by using the coprime factorization approach. We propose, also, a numerical example to illustrate the effectiveness of the proposed approach.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114006919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fault Tolerant Control Strategy Using Two-Layer Multiple Adaptive Models for Plant Fault","authors":"Menglin He, Ze-tao Li, Boutaëeb Dahhou","doi":"10.1109/ICCAD49821.2020.9260565","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260565","url":null,"abstract":"Fault tolerant control (FTC) is always a popular research direction in the domain of automatic control. Inspired by the concept of adaptive model and corresponding approaches in [1], this paper proposed an FTC design strategy for plant fault by introducing these adaptive models into the two-layer multiple model structure. The two-layer multiple model structure describes a hyper-system which considers the nominal and faulty situations of a complex system. A group of local models are selected to present the system in its full range of operation and this is the first layer multiple model. At the second layer, we create a group of model bank to describe the system in nominal and each faulty situations. By checking the validity of the second layer model banks, information of corresponding local models are used to initialize the adaptive models to have a precise approaching to the real system. Besides, model predictive control (MPC) is designed for the reference model of the adaptive process to generate proper reference input for achieving control goals while dealing the FTC problem. Simulations are given to show the validity of the proposed method.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129997587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A New Design of a Functional H∞ Filter for Delayed Singular Systems","authors":"Lotfi Mabrouki, R. B. Jeddou, Bilel Abbassi","doi":"10.1109/ICCAD49821.2020.9260511","DOIUrl":"https://doi.org/10.1109/ICCAD49821.2020.9260511","url":null,"abstract":"In this paper, we propose a new method for the development of a functional H∞ filer for linear singular systems, knowing that a state delay is present in both dynamic and output equations. The proposed filter scheme estimates a functional state independently from the considered delay and according to a H∞ criterion in order to minimize the perturbation effect on the error dynamics. The proposed algorithm is based on The Lyapunov- Krasovskii stability theory using LMI Tools and it's tested on a numerical example where the results were successful.","PeriodicalId":270320,"journal":{"name":"2020 International Conference on Control, Automation and Diagnosis (ICCAD)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127978198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}