Robotic System Used for Navigation and Tracking, in Real Time, with the Obstacle Avoidance

2014 ◽  
Vol 1077 ◽  
pp. 221-226
Author(s):  
Dan Popescu ◽  
Loretta Ichim ◽  
Radu Fratila ◽  
Diana Gornea

Tracking the road or a mobile object and also obstacle avoidance are very important components that must be considered in the process of developing a robotic system. In this paper we propose a mobile platform for indoor navigation, based on a cheap computing hardware, which is able to be configured in two scenarios: the first refers to the movement of the robot on a predetermined path and to avoidance the obstacles, while maintaining the final target, and the second refers to the possibility of identifying and tracking a target. The robotic system aggregates the information acquired from different sensors and combines the computing resources from the mobile platform with those from the central unit. MATLAB is used for all the implementations and tests, to develop algorithms and to create models and applications. The robot's communication with central unit is wireless. Experimental results show that the mobile platform is able to perform, in real time, the following tasks in indoor environment: the recognition of the object, localization and tracking and also the obstacles avoidance.

Robotica ◽  
2004 ◽  
Vol 22 (6) ◽  
pp. 623-632 ◽  
Author(s):  
Damir Omrčen ◽  
Leon Žlajpah ◽  
Bojan Nemec

The paper presents an algorithm for real-time motion control of a mobile manipulator in unstructured environments. The mobile manipulator consists of a velocity controlled mobile platform and a torque controlled manipulator. Therefore, a combination of torque and velocity control is used. For the obstacle avoidance two different principles are used: virtual repulsive velocity and action-reaction principle. The proposed control method has been verified on real system, composed of a mobile platform and a four DOFs manipulator arms. The results have been compared to the manipulator with a fixed base.


2018 ◽  
Vol 227 ◽  
pp. 02021
Author(s):  
Yuge Wang ◽  
Ling Long

With the development of society and the progress of science and technology, the traditional walking stick has been unable to meet the needs of modern walking stick users. Based on this, we developed the intelligent speech navigation walking stick design based on GPS and GSM, supplemented by the functions of ultrasonic obstacle avoidance, night warning and emergency assistance. This walking stick can help the blind walk on the road independently. Moreover, when the user cannot distinguish the road information, the walking stick can realize the real-time voice navigation function in the region, so as to solve the problem that the user cannot independently find the road information.


This whole study helps us in implementing and making an obstacle avoidance car. This robot is a mobile platform robot that navigates through each and every designated waypoints while trying to avoid any obstruction which comes in the way of the vehicle. We can move the vehicle from one point to another with the help of designated waypoints. This car is based on commonly used RC cars and are made with some modifications and advancements. We can do potential future enhancements by adding a SD card for logging GPS track. We can also add a camera for taking photos and videos. The arduino board acts as a controller which help us to control the speed and change the speed. It also controls the steering of the car to achieve automatic obstacle avoidance. The vehicle’s speed is controlled with the help of pulse wave modulation (PWM) provided to us by the Motor shield. GPS helps us in providing global coordinates of the current location that where the vehicle is present in real time and it also tell us that where that vehicle is heading towards. With the combination of hardware and software we can easily navigate the vehicle and guide it towards right direction..


Author(s):  
Max Mauro Dias Santos ◽  
Joao Eduardo Hoffmann ◽  
Hilkija Gaius Tosso ◽  
Asad Waqar Malik ◽  
Anis Ur Rahman ◽  
...  

2017 ◽  
Vol 105 ◽  
pp. 34-39 ◽  
Author(s):  
Ilmi Mohd Ariffin ◽  
Azhar Baharuddin ◽  
Anderson Cyril Atien ◽  
Hanafiah Yussof

2019 ◽  
Vol 2 (5) ◽  
Author(s):  
Tong Wang

The compaction quality of the subgrade is directly related to the service life of the road. Effective control of the subgrade construction process is the key to ensuring the compaction quality of the subgrade. Therefore, real-time, comprehensive, rapid and accurate prediction of construction compaction quality through informatization detection method is an important guarantee for speeding up construction progress and ensuring subgrade compaction quality. Based on the function of the system, this paper puts forward the principle of system development and the development mode used in system development, and displays the development system in real-time to achieve the whole process control of subgrade construction quality.


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