Low Cost Obstacle Avoidance Robot with Logic Gates and Gate Delay Calculations
Dewan Mohammed Abdul Ahad,
Dewan Mohammed Rashid,
Md. Sajid Hossain
Issue:
Volume 6, Issue 1, February 2018
Pages:
1-7
Received:
8 November 2017
Accepted:
16 January 2018
Published:
6 February 2018
Abstract: As a fast growing field, robots are greatly used to achieve the desired task more accurately and mitigate the difficulties in odd environments where human face immense difficulties. In this paper an obstacle avoidance robot has been designed using basic gates. It can detect the obstacle and directs itself with the help of five sensors. When sensor detects an obstacle it gives the pulse high and vice-versa. A differential drive model has been chosen, which has two wheels and a cluster wheel. Left and right motor are used as a physical machine and it will be controlled by logic; K-map has been used to do it. Basic gates help to execute the equation of motors as well as to make robot faster, precise and efficient. To make more comprehensible comparative time delay estimation has been added in this paper.
Abstract: As a fast growing field, robots are greatly used to achieve the desired task more accurately and mitigate the difficulties in odd environments where human face immense difficulties. In this paper an obstacle avoidance robot has been designed using basic gates. It can detect the obstacle and directs itself with the help of five sensors. When sensor ...
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Dynamic Output Feedback Control for Nonlinear Uncertain Systems with Multiple Time-Varying Delays
Wei Zheng,
Hongbin Wang,
Zhiming Zhang,
Pengheng Yin
Issue:
Volume 6, Issue 1, February 2018
Pages:
8-19
Received:
26 December 2017
Accepted:
25 January 2018
Published:
2 April 2018
Abstract: This paper addresses the adaptive dynamic output-feedback control problem for a class of nonlinear discrete-time systems with multiple time-varying delays. First, the guaranteed cost function is introduced for the nonlinear system to reduce the effect of the time-varying delays. Secondly, in order to deal with the multiple time-varying delays, the nonlinear system is decomposed into two subsystems. Then the compensator is designed for the first subsystem, and the adaptive dynamic output-feedback controller is constructed based on the subsystems. By introducing the new discrete Lyapunov-Krasovskii functional, it can be seen that the solutions of the resultant closed-loop system converge to an adjustable bounded region. Finally, the simulations are performed to show the effectiveness of the proposed methods.
Abstract: This paper addresses the adaptive dynamic output-feedback control problem for a class of nonlinear discrete-time systems with multiple time-varying delays. First, the guaranteed cost function is introduced for the nonlinear system to reduce the effect of the time-varying delays. Secondly, in order to deal with the multiple time-varying delays, the ...
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