Wireless Bomb Disposal Robot

The basic idea of this project is to provide a robot that can be used for disposing bombs and other such explosives, so no human lives are put at risk anymore. The bomb disposal squads will be provided a line of defense against the fatal risks they have to face while disposing explosives. The robot

Project Title

Wireless Bomb Disposal Robot

Project Area of Specialization

Robotics

Project Summary

The basic idea of this project is to provide a robot that can be used for disposing bombs and other such explosives, so no human lives are put at risk anymore. The bomb disposal squads will be provided a line of defense against the fatal risks they have to face while disposing explosives. The robot will be controlled by a bomb disposal expert from a distance so that the bomb can be made unusable. A wireless control will be responsible to operate the robot and will be used for cutting the wires in the bomb. A wireless, night vision camera will be used in order to get live feedback so that can the bomb can be defused and disposed off. In case of any mishap, where the robot is unable to defuse the bomb, only the robot will be damaged and no human life will be put to stake. Thus, proving that the robot is a safer and probably a more effective way for disposing explosives.

Project Objectives

The chief objective of this project is to offer protection, by providing an extra line of defense to the bomb disposal squad. Further objectives are as follows:
? To provide a remote observing and controlling application for analysis of any explosive.
? Allowing the operator to control the explosive using the robotic arm.
? To offer a visual feedback from the site where the explosive is present.
? To offer a user friendly control application.

Project Implementation Method

We start the implementation of the project by assembling the hardware, without which our project can not be carried forward. We will design the structure of our robot using basic components. The raspberry pi is basically a credit-card sized, single board computer which possesses a wireless LAN and Bluetooth connectivity. It runs LINUX, an operating system that has to be stored on the SD card first. It can be used for data processing, word processing and even browsing the internet but, mostly is used for control purposes in robotics. A robotic arm is a type of mechanical arm that consists of parts connected together in the same way as those of a human arm. It is programmable with the related functions to a human arm;it may be part of a more intricate robot. Higher the degree of freedom, higher the flexibility of the tool. Our arm has six motors; two of which are at the shoulder, one at the elbow, one at the wrist, one for the gripper and one for the cutter. The TS100 is the tank chassis is a full metal aluminum alloy structure and with the help of motors, it can easily move. The tank base makes it easier to cross rough surfaces and thus is better than a wheeled base. The network adapter is basically a small piece of hardware that provides an interface for communicating a computer to any network. A wireless network connection is used for the transfer of data. A Wi-Fi USB adapter that supports speed of 150 Mbps is used. After assembling the hardware, we will program the servo motors that are present in the tank chassis and the robotic arm. The first step of the process of defusing or disposing off the bomb is the live transmission of video feedback using a camera and the raspberry pi, after image processing.The next step is establishing the connection between the raspberry pi and the controlling device which is connected to the network adapter over the internet, and thus guarantees a connection between the controlling device and the raspberry pi. Once the robot is activated, it waits for a remote command from the control site. When received, it starts to transmit a live video feedback to the control site, using image processing. Using this feedback, the explosive can either be disposed or defused, according to the situation. The control site is basically the site from which the robot would be controlled. The controlling device will send signals to the raspberry pi which is placed on the robot. The display unit will be remotely connected to the raspberry pi. The display unit will send receive live video transmission from the bomb site through the process of image processing, which is also known as the receiving site. The raspberry pi is connected to a Wi-Fi module,with a wireless camera, motors and the robotic arm. Using the live transmission of the situation at the bomb site, the controller of the robot can send a signal to the raspberry pi, which will then send a signal to the arm which can then either pick and dispose off the bomb or defuse it using the cutter.
 

Benefits of the Project

The robot operates as a remote presence for the bomb disposal experts at the bomb disposal site. This allows them to closely examine devices, without putting themselves or others in danger. Once the device has been examined, the robot can then render the bomb inert.

Technical Details of Final Deliverable

The final deliverable of our project will be a bomb disposal robot which will be using the concept of image processing to transmit video feedback. According to this video feedback from the camera to the display unit, decision making can be done without putting any human life at stake. The bomb disposal squad will be able to control the robot without going anywhere near the explosive, because of the wireless control that will be instilled. The person controlling the robot will be able to defuse the bomb successfully or dispose off the explosive; whatever the situation demands. The raspberry pi which is the control unit, will be programmed in python language. Thus, all the motors attached to the robotic arm and the tank chassis will be programmed in python. The motors are connected to the h-bridge which is an electronic circuit that switches the polarity of a voltage applied to a load. The speed of the dc motor is controlled by controlling the input voltage to the motor, using the pulse width modulation signal. To control the rotation direction, the direction of the current flow will be inversed, by activating two particular switches at the same time. Combining these two methods, the motors will be completely controlled. The angles of the motors present in the robotic arm will be calculated using inverse kinematics, which is the mathematical process of recovering the movements of an object from other data.

Final Deliverable of the Project

Hardware System

Type of Industry

Security

Technologies

Robotics

Sustainable Development Goals

Good Health and Well-Being for People

Required Resources

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