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Remote Controlled Robot Essay

3603 words - 15 pages

International Journal of Science, Engineering and Technology Research (IJSETR), Volume 3, Issue 7, July 2014

DESIGN AND IMPLEMENTATION OF REMOTE OPERATED SPY ROBOT CONTROL SYSTEM
Wai Mo Mo Khaing1, Kyaw Thiha2 Department of Mechatronic Engineering, Mandalay Technological University Mandalay, Myanmar

Abstract- Spy robots are remotely controlled robots, equipped with a camera, transmitting video data to the intervention troop. They are made to small and compact enough to easily transport. In this paper, the project supposes a movable spy robot with a remote controller by using PIC 16F628A and PIC 16F877. The spy robot is made up of a wireless camera, an antenna, batteries and four movable ...view middle of the document...

SYSTEM COMPONENTS

A. Microcontroller A remote operated Spy robot is based on the two microcontrollers such as PIC16F628A and PIC16F877. In these two types of microcontrollers, a total of 35 instructions (reduced instruction set) are available, complemented by a large register set. These devices have integrated features to reduce external components, thus reducing system cost, enhancing system reliability and reducing power consumption. In figure 2(a), PORTA pins 1,2,3,18,17 and 13 are connected with LCD display which is mounted in the remote controller. The controls bits of these pins are RA0, RA1, RA2, RA3, RA4 and RA7 of PORTA. PORTB 0 to 6 except PORTB2 and the controls bits PORTB6,7,9,10,11 and 12 are used for the user inputs which are forward, backward, left, right, CCD left and CCD right.PORTB7 bit no: 13 is used for data output pin. The power supply of this controller is +5V DC and connected the pin no: 14. The Ground is pin no: 5.

INTRODUCTION

In practice, it is usually an electro-mechanical machine which is guided by computer or laptop, mobile or electronic programming, and is thus able to do tasks on its own. Wireless controlled robots use RF circuits which have drawbacks of limited working range, frequency range and limited control. Spy robot can capture audio and video information from the surroundings and can be sending to a remote station through RF signal [1].The control of robot involves three distinct phases: perception, processing and action. Generally, the preceptors are sensors mounted on the robot, processing is done by the on-board microcontroller or processor, and the task is

1952 ISSN: 2278 – 7798 All Rights Reserved © 2014 IJSETR

International Journal of Science, Engineering and Technology Research (IJSETR), Volume 3, Issue 7, July 2014

Figure 2(a): PIC16F628A microcontroller pins assign In figure 2(b), the motor is driven by motor driver circuit which controls by PORTB0 to 5 (pin no: 33 to 38). The power supply of this controller is also +5V DC and connected the pin no: 11 and 30. The Ground is pin no: 12 and 31.

3(b), PORTB5 and PORTB4 (pin no: 38 and 37) are connected the motor driver‟s pin no: 5 and 7 (input 1 and input 2) for data input. And then, motor driver‟s pin no: 2 and 3 are used for data output which is connected the Brush DC motor. The next L298N motor driver is connected with PIC16F877 for Spy robot movement direction. PORTB3 and PORTB2 (pin no: 36 and 35) are connected the motor driver‟s pin no: 5 and 7 (input 1 and input 2) for data input and pin no: 2 and 3 as data output for rare wheel left motor activate. PORTB1 and PORTB0 (pin no: 34 and 33) are connected the motor driver‟s pin no: 10 and 12 (input 3and input 4) are used for data input and pin no: 13 and14 as data output for rare wheel right motor activate. +12V power is supplied L298N motor driver because 12V Brush DC motors are used in this project. Most permanent magnet DC powered electric motors use Brushes to transmit power from the...

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