Design of High-precision Ultrasonic Ranging System for Mobile Robot

Author(s):  
Qin Li ◽  
Zhanpeng Huang ◽  
Zhongming Zhu
2012 ◽  
Vol 249-250 ◽  
pp. 1139-1143
Author(s):  
Yan Gao ◽  
Li Na Jia ◽  
Bo Wang ◽  
Li Hua Liu ◽  
Li Ming Huang

This paper introduces ultrasonic ranging system which can be applied to avoid obstacle and navigate for mobile robot .This system is composed of AT89S51 single chip microcomputer ,ultrasonic transmitting circuit, ultrasonic receiving circuit, amplifying and filtering circuit , peak value time detecting circuit, environment temperature compensation circuit. The method of echo peak time detection point is used to eliminate the error. It is proved that The maximum range of the system is 10 meter and maximum measurement error can be controlled to± 2 cm or so. This system has such merits as rapid corresponding, high precision, high performance price rate.


Author(s):  
Т. Круглова ◽  
Tat'yana Kruglova ◽  
А. Власов ◽  
A. Vlasov

Widespread robotization is a modern trend in the development of agriculture. Currently, various designs of robots are being actively implemented. They are aimed to replace a human when performing various tasks. Most of these robots are wheeled mobile platform, for which it is necessary to ensure high maneuverability and accuracy of control. This problem can be solved by developing optimal high-precision control algorithms, for the study of which it is advisable to use a mathematical model of a mobile agricultural robot. This article presents the results of modeling the movement of a four-wheel mobile robot with a differential drive that moves across a rectangular field along a “snake state” trajectory that is optimal by speed


2011 ◽  
Vol 60 (12) ◽  
pp. 3775-3780 ◽  
Author(s):  
Ji-De Huang ◽  
Chih-Kung Lee ◽  
Chau-Shioung Yeh ◽  
Wen-Jong Wu ◽  
Chih-Ting Lin

2016 ◽  
Vol 12 (1) ◽  
pp. 79-84 ◽  
Author(s):  
Ayad Jabbar

The autonomous navigation of robots is an important area of research. It can intelligently navigate itself from source to target within an environment without human interaction. Recently, algorithms and techniques have been made and developed to improve the performance of robots. It’s more effective and has high precision tasks than before. This work proposed to solve a maze using a Flood fill algorithm based on real time camera monitoring the movement on its environment. Live video streaming sends an obtained data to be processed by the server. The server sends back the information to the robot via wireless radio. The robot works as a client device moves from point to point depends on server information. Using camera in this work allows voiding great time that needs it to indicate the route by the robot.


2016 ◽  
Vol 17 (4) ◽  
pp. 365-374 ◽  
Author(s):  
Feng-yu Zhou ◽  
Xian-feng Yuan ◽  
Yang Yang ◽  
Zhi-fei Jiang ◽  
Chen-lei Zhou

2012 ◽  
Vol 239-240 ◽  
pp. 37-41
Author(s):  
Cui Li Mao ◽  
Er Hua Wang ◽  
Hong Qi Lin

A real-time and high precision ultrasonic ranging method is proposed here. Ultrasonic ranging system based on MCU was established, which is composed of MCU, ultrasonic sending and receiving circuit, temperature compensate circuit, alarm, key and display circuit. Counting pulse method was used to measure the ultrasonic transmission time, and then the distance is calculated. In order to improve the ranging accuracy, temperature compensation was used in this system. Preliminary experiment showed that the system meet the requirements. This system has advantages such as low price, small volume, reliable operation, high accuracy, and can be employed in car backing, obstacle avoiding of robots, industrial logging, reservoir level measuring etc.


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