DESIGN AND IMPLEMENTATION OF A REMOTE ELECTRONIC AGENT

ABSTRACT

During the period of rapid spread of the corona virus infection, a large number of infected people were quarantined and otherwise isolated from the general populace. Face to face access to such people was risky and difficult. Even medical personnel had to take stringent and inconvenient measures to safeguard themselves, before they could meet physically with such patients. Arising from this, the aim of this work is to design and implement a remote electronic agent that will help to monitor, and communicate with an isolated person. The proposed system makes use of a mobile platform driven by four electric motors, with each driving wheels for precise navigation control. The motors are controlled by an L298N motor driver. The system also makes use of central microcontroller with WIFI capabilities to establish connection with a smart phone using the Adafruit IoT (Internet of Things) interface. It also has a 12V lead acid battery for supplying power. The power supplied by this battery is regulated and stepped down to 5V by an LM7805 voltage regulator and this voltage regulator supplies power directly to the micro-controller and the motor driver (or controller). The system performed as required. The robot successfully connects to the internet and responds to commands given through the IoT platform. Motors responded correctly to commands, rotated in the specified direction, and at the desired speed. The motor control system is functioning properly, and the robot can move as intended. The robot can transmit a clear and stable live video feed with minimal lag. However, when the internet connection is poor, the video feed becomes blurry, pixelated, or experiences frequent interruptions.