LIQUID LEVEL MONITORING SYSTEM

Abstract

For effective management and maintenance of tanks in industries one of the most important parameter is the measurement of liquid levels. The tanks used in the industries are generally spread across larger areas for this reason remote monitoring and data collection systems are the most successful tools which evaluate the status of the tanks periodically. In this paper we propose a novel method for measuring liquid level using ultrasonic sensor which are placed at a particular position in the tank at the remote station. The values collected from the ultrasonic sensors are sent to the base station using a Wi-Fi module. The data collected from Wi-Fi module is stored in the memory and the variation of the liquid levels over a period of the time is displayed using IOT.

Existing System

Proposed System

It consists of the following hardware components as listed below: • Arduino UNO (Atmega328 Microcontroller) • Ultrasonic Sensor (HC-SR04) • Wi-Fi Module (ESP8266) • LED (BL-001) • Power Supply • Personal Computer/Laptop To demonstrate the module, we make use of two ultrasonic sensors placed over the two containers to sense the liquid level and evaluate the container’s depth. The ultrasonic sensor provides an output signal proportional to distance based on the echo. The sensor generates a sound vibration in ultrasonic range upon giving a trigger, after that it waits for the sound vibration to return. Now based on the parameters, sound speed (220m/s) and time taken for the echo to reach the source, it provides output pulse proportional to distance. The Arduino UNO microcontroller accepts this signal from ultrasonic sensor performs necessary processing and sends it to Wi-Fi module. Towards the receiver you have a laptop/personal computer with the internet access; the IOT Display is nothing but a web page which is built to show the status of the liquid level in the container to the user monitoring it. The web page gives a graphical view of the liquid levels in real time (A Plot is drawn where X axis indicating time and date, Y axis indicates liquid level measured). The LED is used to show the sign of the output and the delay occupied by the program module. The buzzer makes sound when the level of liquid collected crosses the set limit.

Architecture

BLOCK DIAGRAM