Remote controlled Bomb disposable robot

SPECIFICATIONS

Title of the project                 :           Remote controlled Bomb disposable robot

                                                                                   

Domain                                    :           Embedded Systems Design

Software                                  :           Assembler, Proload

Microcontroller                      :           89S52 CISC Micro Controller

Power Supply                          :           +5V, 500mA Regulated Power Supply

Display                                     :           a) LCD,  HD44780 16-character, 2-line (16X2)

                                                            b) LED              5mm

Crystal                                     :           11.0592MHz

Handling                                 :           with robotic arm

Applications                           :           military, security organizations and police

ABSTRACT

The project has been designed keeping in view the current law and order situation in the world. Everyday hundreds of trained personnel are either injured or lose their lives while defusing bombs. This can be reviewed by the countless number of news items appearing daily in newspapers around the world. Although the idea of our project is original, a number of projects with similar functionalities can be found. For Example the British Police have a bomb disposal robot, the Israeli Army have it and it is also being used by bomb disposal squads and a number of states of USA. The main idea of this robot is to provide the bomb disposal squad with safety and security from the risks that they face every day. The bomb disposal squad has metal detectors and other equipment for bomb detection and disposal, but they have to risk their lives by approaching the bomb or the suspicious packet without any safety and precautions. Our robot provides an extra layer of protection to the bomb disposal squad by allowing them to check and analyze a suspicious packet before actually approaching it for disposal. Mobile robots reduce or eliminate a bomb technician’s time-on-target. A robot takes risk out of potentially deadly scenarios and lets the bomb technician focus

The robot has two wheels and is driven using differential drive mechanism. The rear end is provided with a free wheel for balancing the robot. A one degree of freedom arm with push pull mechanism is provided to handle the bomb. The arm pulls the bomb into the container and takes it to a distant place for disposal. The robot is remotely controlled using an infrared remote control. The various functions assigned to the remote are move forward, backward, right, left, stop, push arm and pull arm. All the motors are controlled by microcontroller based embedded system.  LM293 based H bridge motor driver is used to drive the geared DC motors. We are using 89S52 microcontroller in our project.

This project uses regulated 5v, 500mA power supply. 7805, a three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac output of secondary of 230/12v step down transformer.

BLOCK DIAGRAM