文章基本信息

标题：AN INSIGHT INTO MOTIONS CONTROLLED BY DTMF TECHNIQUE
本地全文：下载
作者：Nidhi Sharma
期刊名称：International Journal of Enterprise Computing and Business Systems
电子版ISSN：2230-8849
出版年度：2012
卷号：2
期号：1
出版社：International Journal of Enterprise Computing and Business Systems
摘要：Man has invented many machines and in almost all the machines, ultimately motions have been controlled by in-situ or through remote techniques. In this direction, the use of DTMF (Dual Tone Multiple Frequency) technique available in a mobile or cell phone is becoming an interesting topic, as it offers many convenient solutions for controlling the various motors both in forward and reverse directions. In fact, once a motor gets controlled, its motion can be translated in many dimensions. The Cell Phone Application group in the Incubation Cell at the SBIT has utilized two cell phones in controlling three motors. In actual situation, DTMF signals have been utilized to control three motors mounted in a robot developed at the SBIT. In this robot, two motors control the movement of the robot, while the third one is utilized to give a feedback on the commands given to the robot through a video camera, which shows the position of the robot w.r.t. the environment. In other words, the video camera can be located at a desired position. In DTMF technique, there are two mobiles, one mounted on the robot and another one is at the control end. At the control end, if any button on the cell phone is pressed, it generates a separate dual tone through DTMF codes, which are utilized in controlling various motions. This configuration is just an academic demonstration of the motion controls through DTMF technique and in terms of its applications; it is going to have wider acceptability in future. The details of the use of DTMF technique shall bedemonstrated as well presented in details during the Conference. We present controlling of a Robot using DTMF technique and camera mounted over it.The robot is controlled by a mobile phone that makes call to the other Mobile phone attached to the robot. In the course of the call, if any buttonis pressed, tone corresponding to the button pressed is heard at the other End of the call. This tone is called dual tone multi frequency tone (DTMF).Using DTMF code; direction of motion of the robot can be controlled by Mobile phone. Robot has a RF camera that transmits an actual video at the operator’s monitor.
关键词：Mobile phones; DTMF decoder; controller; RF camera; Laptop/PCmonitor