Real-time health monitoring system design based on optical camera communication

A dramatic increase in internet-of-things-based remote health monitoring systems can be observed in recent times. The majority of them use a technology based on radio frequency (RF), whose adverse effects on human health are continuously addressed in the literature. We have designed a system using a pulse oximeter sensor to monitor the health conditions of the patient and transmit data through the LED and received using a camera. The camera captures the image and extracts the data from the receiver in the Python environment. The data is modulated using a color shift keying technique, and based on the different colors the data is retrieved from the receiver.