IoT Based Wearable Device for Workers in Industrial Scenarios

Abstract

The emerging technology Internet of Things is giving rise to connected workers which makes the worker more safety aware to prevent occupational risks. In this work, a smart wearable device for workers in industrial scenarios with ESP-32 based setup using IoT is proposed. This device monitors the ambient conditions like temperature, humidity using DHT-11, measures hazardous gases like CO (in PPM) presence using MQ-7 sensor and also monitors worker’s pulse rate (in beats/min) using pulse-rate sensor, body temperature (in ◦C) using LM-35 sensor and acceleration of the worker using accelerometer sensor in the working environment. The worker can request for emergency help in critical situations like heart stroke by pressing the emergency push button and the worker can be alerted based on sensor readings about hazards like gas, heat exposures. The overall system uses MQTT publish/subscribe services built by NODE-RED flows to communicate with MOSQUITTO broker, installed on RASPBERRY PI.