scholarly journals Low-Cost Microcontroller-based Hover Control Design of a Quadcopter

2012 ◽  
Vol 41 ◽  
pp. 458-464 ◽  
Author(s):  
Bernard Tat Meng Leong ◽  
Sew Ming Low ◽  
Melanie Po-Leen Ooi
2016 ◽  
Vol 11 (04) ◽  
pp. 81-90
Author(s):  
Supantha Mandal ◽  
Suraj Kumar Saw ◽  
Karan Shaw ◽  
Arunava Kabiraj Thakur ◽  
Varsha Seth ◽  
...  

Machines ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 101
Author(s):  
Leonardo Acho

The main objective of this paper is to present a position control design to a DC-motor, where the set-point is externally supplied. The controller is conceived by using vibrational control theory and implemented by just processing the time derivative of a Hall-effect sensor signal. Vibrational control is robust against model uncertainties. Hence, for control design, a simple mathematical model of a DC-Motor is invoked. Then, this controller is realized by utilizing analog electronics via operational amplifiers. In the experimental set-up, one extreme of a flexible beam attached to the motor shaft, and with a permanent magnet fixed on the other end, is constructed. Therefore, the control action consists of externally manipulating the flexible beam rotational position by driving a moveable Hall-effect sensor that is located facing the magnet. The experimental platform results in a low-priced device and is useful for teaching control and electronic topics. Experimental results are evidenced to support the main paper contribution.


Author(s):  
Muhammad Bilal Khan

We present the design and overall development of an eight degrees of freedom (DOF) based Bioinspired Quadruped Robot (BiQR). The robot is designed with a skeleton made of cedar wood. The wooden skeleton is based on exploring the potential of cedar wood to be a choice for legged robots’ design. With a total weight of 1.19 kg, the robot uses eight servo motors that run the position control. Relying on the inverse kinematics, the control design enables the robot to perform the walk gait-based locomotion in a controlled environment. The robot has two main aspects: 1) the initial wooden skeleton development of the robot showing it to be an acceptable choice for robot design, 2) the robot’s applicability as a low-cost legged platform to test the locomotion in a laboratory or a classroom setting.


2013 ◽  
Vol 312 ◽  
pp. 533-537
Author(s):  
Yan Yuan ◽  
Yan Yun Cao

In order to imitate the motion of a free failing package, one kind of drop test machine for transport package is designed. This paper analyzes the problems of existing drop test machines, conducts machine and electric control design, illustrates the structure, operating principles and methods, and then improves the appearance of the machine. As is shown by the experiment results, the drop test machine for transport package enjoys the advantages of low cost, simple structure, ease of processing and high security. It can satisfy the actual demands of packaging enterprises and institutions of scientific research and has high value of engineering application in packaging equipment.


Author(s):  
Aliasghar Arab ◽  
Jingang Yi ◽  
Mohammad Mahdi Fateh ◽  
Soroush Arabshahi

This paper presents a robust control design for a low-cost mobile robot under modeling uncertainties and external disturbances. We use a radial basis function neural network (RBFNN) to estimate and compensate for the model uncertainties and external disturbances. The proposed control design is model-free with guaranteed stability and good path-following performance. The RBFNN weight regulation and adaptive gains are designed based on the Lypanov method. Simulation and experimental results illustrate the design and demonstrate the strength of the proposed control applied to a nonholonomic wheeled mobile robot driven by low-cost permanent magnet dc motors without shaft encoders. The comparison results between proposed control and feedback linearization control confirm the effective role of the compensator in terms of precision, simplicity of design and computations.


2019 ◽  
Author(s):  
Agostino Guarino ◽  
Barbara Shannon ◽  
Lucia Marucci ◽  
Claire Grierson ◽  
Nigel Savery ◽  
...  

AbstractTo characterise the dynamics of new engineered systems in Synthetic biology, continuous culture platforms are required. In this paper, after a brief review of the existing machines present in literature, we describe the design and the implementation of a new flexible and low cost turbidostat for in-vivo control experiments. Then, the results of a 3 hours long experiment of control of the Optical Density is reported. Since the foundation of our design is flexibility, in this work we also discuss some possible extensions of our design, with particular attention to their application to validate in-vivo multicellular control design.


2016 ◽  
Vol 38 (6) ◽  
pp. 701-721 ◽  
Author(s):  
Dafizal Derawi ◽  
Nurul Dayana Salim ◽  
Hairi Zamzuri ◽  
Mohd Azizi Abdul Rahman ◽  
Kenzo Nonami

Author(s):  
Rafik Salloum ◽  
Mohammad Reza Arvan ◽  
Bijan Moaveni

Electromechanical actuators (EMAs) are of interest for applications which require easy control and high dynamics. This paper addresses the experimental identification, structured and unstructured uncertainties modeling, and robust control design for an EMA system with harmonic drive. Two robust controllers are designed by two proposed approaches: The first is based on Kharitonov theorem, which not only robustly stabilizes the uncertain EMA system but also maintains the pre-specified margins and bandwidth constraints. The second is feedback compensation design procedure based on H∞ control theory, verifying good tradeoff between the powerful H∞ controller and the unique features of feedback compensation, such as simplicity, effectiveness, low sensitivity to parameters variations, low cost, and easy implementation. Simulation and experiments prove the robustness and high tracking performance of the robust EMA systems which reveals the affectivity of the proposed robust control design methods.


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