Internet Connected e-Healthcare System with Live Video Monitoring using LWIP Stack and SJF Priority Scheduling

Abstract

Continuous monitoring of patients in critical condition becomes essential in medical field. This paper aims at developing an innovative IoT based remote healthcare monitoring system by using Free RTOS with priority scheduling based on SJF (Shortest Job First). Proposed system offers vital medical information and live video of a patient who is present in rural area. It can make easy and quick accessing of a patient by medical professional from remote areas. Also helps for detailed analysis and taking correct remedies to effectively cure that patient. Various health parameters such as patient's body temperature, heart rate, body position along with live video are been monitored through internet using this system. In Free RTOS used in programming, SJF based priority scheduling is chosen because of reduced average waiting and turnaround time of CPU on performing multiple tasks associated with the camera and other sensors. The internet connectivity part of program is built using LWIP TCP/IP stack in focus of limited microcontroller resource.