| 28361. |
- Paul, Satyam, et al.
(författare)
-
Fuzzy Tuned PID Controller for Envisioned Agricultural Manipulator
- 2021
-
Ingår i: International Journal of Automation and Computing. - : Chinese Academy of Sciences. - 1476-8186 .- 1751-8520. ; 18:4, s. 568-580
-
Tidskriftsartikel (refereegranskat)abstract
- The implementation of image-based phenotyping systems has become an important aspect of crop and plant science research which has shown tremendous growth over the years. Accurate determination of features using images requires stable imaging and very precise processing. By installing a camera on a mechanical arm driven by motor, the maintenance of accuracy and stability becomes non-trivial. As per the state-of-the-art, the issue of external camera shake incurred due to vibration is a great concern in capturing accurate images, which may be induced by the driving motor of the manipulator. So, there is a requirement for a stable active controller for sufficient vibration attenuation of the manipulator. However, there are very few reports in agricultural practices which use control algorithms. Although, many control strategies have been utilized to control the vibration in manipulators associated to various applications, no control strategy with validated stability has been provided to control the vibration in such envisioned agricultural manipulator with simple low-cost hardware devices with the compensation of non-linearities. So, in this work, the combination of proportional-integral-differential (PID) control with type-2 fuzzy logic (T2-F-PID) is implemented for vibration control. The validation of the controller stability using Lyapunov analysis is established. A torsional actuator (TA) is applied for mitigating torsional vibration, which is a new contribution in the area of agricultural manipulators. Also, to prove the effectiveness of the controller, the vibration attenuation results with T2-F-PID is compared with conventional PD/PID controllers, and a type-1 fuzzy PID (T1-F-PID) controller.
|
|
| 28362. |
- Paul, Satyam, et al.
(författare)
-
Fuzzy Tuned PID Controller for Vibration Control of Agricultural Manipulator
- 2020
-
Ingår i: HORA 2020 - 2nd International Congress on Human-Computer Interaction, Optimization and Robotic Applications. - : IEEE. - 9781728193526 - 9781728193533 ; , s. 166-170
-
Konferensbidrag (refereegranskat)abstract
- Image-based phenotyping systems have evolved over the years, and become an integral part of crop and plant science research. Phenotyping systems provide great potential to deliver critical insights, than the conventional destructive field methods. Stable image acquisition and processing is very important to accurately determine the characteristics in general, which further becomes very challenging and non-trivial when mounted over an motor mechanised arm. To address the near associated problems, we investigate on the possibility of applying the Proportional–Integral–Derivative (PID) control algorithm to the present manual setup with an aim to reduce vibration. This study focused towards investigating the active control and stabilization of the external camera shake, that may be induced by the driving motor. Nonetheless, very few researchers have focused on application of control algorithms for agriculture related practices. We validate the active control, and justify the need for the same.Type-2 fuzzy logic is combined with the PID control for better effectiveness. The non-linearity associated with the system is compensated by the type-2 fuzzy logic. The results shows that the active control has been achieved, and the vibration is minimized.
|
|
| 28363. |
- Paul, Satyam, 1981-, et al.
(författare)
-
Intelligent Fault Detection Scheme for Drilling Process
- 2019
-
Ingår i: ICCMA 2019. - : Institute of Electrical and Electronics Engineers (IEEE). - 9781728137889 - 9781728137872 ; , s. 347-351
-
Konferensbidrag (refereegranskat)abstract
- Automatic fault detection system is an important aspect of industrial process and can contribute significantly for minimizing equipment downtime thus makingit a cost effective process. In this paper, an innovative model-based faultdetection (FD) system in combination with interval type-2 (IT2) Takagi-Sugeno(T-S) fuzzy system is developed for the detection of the faults in the drillbit of the drilling system. The proposed methodology validates the stabilityof the fault detection system in the presence of system uncertainties. Numerical analysis is carried out to prove the effectiveness of the theoretical approach. The effective methodology can be implemented in real time for detecting faults during downhole drilling operations.
|
|
| 28364. |
- Paul, Satyam, 1981-, et al.
(författare)
-
Intelligent Techniques for Bidirectional Structural Health Monitoring
- 2016
-
Ingår i: Proceedings of the 5th International Conference on Mechatronics and Control Engineering. - New York, NY, USA : Association for Computing Machinery (ACM). ; , s. 52-56
-
Konferensbidrag (refereegranskat)abstract
- This paper provides an overview of structural health monitoring systems based on the intelligent methodology that can be implemented on the buildings that has undergone damage under the impact of bidirectional seismic forces.
|
|
| 28365. |
- Paul, Sudip Kumar, et al.
(författare)
-
Higher risk of hyperglycemia with greater susceptibility in females in chronic arsenic-exposed individuals in Bangladesh
- 2019
-
Ingår i: Science of the Total Environment. - : Elsevier. - 0048-9697 .- 1879-1026. ; 668, s. 1004-1012
-
Tidskriftsartikel (refereegranskat)abstract
- Arsenic (As) toxicity and diabetes mellitus (DM) are emerging public health concerns worldwide. Although exposure to high levels of As has been associated with DM, whether there is also an association between low and moderate As exposure and DM remains unclear. We explored the dose-dependent association between As exposure levels and hyperglycemia, with special consideration of the impact of demographic variables, in 641 subjects from rural Bangladesh. The total study participants were divided into three groups depending on their levels of exposure to As in drinking water (low, moderate and high exposure groups). Prevalence of hyperglycemia, including impaired glucose tolerance (IGT) and DM was significantly associated with the subjects’ drinking water arsenic levels. Almost all exposure metrics (As levels in the subjects’ drinking water, hair and nails) showed dose-dependent associations with the risk of hyperglycemia, IGT and DM. Among the variables considered, sex, age, and BMI were found to be associated with higher risk of hyperglycemia, IGT and DM. In sex-stratified analyses, As exposure showed a clearer pattern of dose-dependent risk for hyperglycemia in females than males. Finally, drinking water containing low-to-moderate levels of As (50.01–150 μg/L) was found to confer a greater risk of hyperglycemia than safe drinking water (As ≤10 μg/L). Thus the results suggested that As exposure was dose-dependently associated with hyperglycemia, especially in females. © 2019 Elsevier B.V.
|
|
| 28366. |
- Paul, Satyam, 1981-, et al.
(författare)
-
Recent Advances in Bidirectional Modeling and Structural Control
- 2016
-
Ingår i: Shock and Vibration. - : Hindawi Publishing Corporation. - 1070-9622 .- 1875-9203. ; 2016
-
Forskningsöversikt (refereegranskat)abstract
- This paper provides an overview of building structure modeling and control under bidirectional seismic waves. It focuses on different types of bidirectional control devices, control strategies, and bidirectional sensors used in structural control systems. This paper also highlights the various issues like system identification techniques, the time-delay in the system, estimation of velocity and position from acceleration signals, and optimal placement of the sensors and control devices. The importance of control devices and its applications to minimize bidirectional vibrations has been illustrated. Finally, the applications of structural control systems in real buildings and their performance have been reviewed.
|
|
| 28367. |
- Paul, Satyam, 1981-, et al.
(författare)
-
Recent Advances in Intelligent-Based Structural Health Monitoring of Civil Structures
- 2018
-
Ingår i: Advances in Science, Technology and Engineering Systems Journal (ASTESJ). - : Advances in Science, Technology and Engineering Systems Journal. - 2415-6698. ; 3:5, s. 339-353
-
Forskningsöversikt (refereegranskat)abstract
- This survey paper deals with the structural health monitoring systems on the basis of methodologies involving intelligent techniques. The intelligent techniques are the most popular tools for damage identification in terms of high accuracy, reliable nature and the involvement of low cost. In this critical survey, a thorough analysis of various intelligent techniques is carried out considering the cases involved in civil structures. The importance and utilization of various intelligent tools to be mention as the concept of fuzzy logic, the technique of genetic algorithm, the methodology of neural network techniques, as well as the approaches of hybrid methods for the monitoring of the structural health of civil structures are illustrated in a sequential manner.
|
|
| 28368. |
- Paul, Satyam, 1981-, et al.
(författare)
-
Stability analysis and bidirectional vibration control of structure
- 2019
-
Ingår i: Emerging Trends in Civil Engineering. - Singapore : Springer. - 9789811514036 - 9789811514043 ; , s. 275-287
-
Bokkapitel (refereegranskat)abstract
- In the area of vibration control associated with structures, proportional-integral-derivative (PID) is considered to be an effective controller for the vibration attenuation scheme. Although the researchers prefer the use of PID controller but due to huge uncertainties in the structure, the control actions are not good. This paper depicts the application of combined PID control with Type-1 Fuzzy system for the compensation of the involved uncertainties. The main role of the Type-1 Fuzzy logic model is the identification of the uncertainties in the modeling equation and also to compensate it in an effective way. The methodology of Lyapunov stability criterion is implemented to validate the uniform stability of the closed-loop system. The synergistic combination of active mass damper (AMD), torsional actuator (TA), and Type-1 Fuzzy PID controller resulted in superior vibration attenuation which is validated by the experimental tests.
|
|
| 28369. |
- Paul, Satyam, 1981-, et al.
(författare)
-
Stable active vibration control of building structure subjected to bidirectional earthquake
- 2016
-
Ingår i: 2016 13th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE). - : IEEE. ; , s. 1-6
-
Konferensbidrag (refereegranskat)abstract
- Proportional-derivative (PD) is highly favored algorithms in terms of industrial applications. Although, there are infrequent broadcasted theory results of PD controller in connection to structural vibration control applications. In this paper, we analyze the stability of the active vibration control system for both the linear model and nonlinear model of building structures under bidirectional seismic excitation taking into consideration lateral-torsional vibrations. We state comprehensive sufficient conditions for choosing the PD gains. The stability theories are verified through numerical simulations and a two-storey building prototype. The extracted results validates our theory analysis.
|
|
| 28370. |
- Paul, Satyam, 1981-, et al.
(författare)
-
Type-2 fuzzy PID for active control of bidirectional structures
- 2017
-
Ingår i: 2017 14th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE). - : IEEE. ; , s. 1-4
-
Konferensbidrag (refereegranskat)abstract
- Proportional-integral-derivative (PID) controller is popular algorithm in structure vibration control. In order to maintain minimum regulation error, the PID control require big proportional and derivative gains. The control performances are not satisfied because of the big uncertainties in the buildings. In this paper, the type-2 fuzzy system is applied to compensate the unknown uncertainties, and is combined with the PID control. We prove the stability of these fuzzy PID controllers. The sufficient conditions can be used for choosing the gains of PID. The theory results are verified by a two-story building prototype. The experimental results validates our analysis.
|
|
