Cloud Computing based COVID-19 Patient Health Monitoring System to Create Safety Environment
Abstract
Modern medical science using latest bio-medical instruments has made dramatic progress in prolonging life by overcoming disease. This project work falls under wireless biotelemetry and is designed with micro controller (Arduino), which is able to monitor two individual patients. The health parameters monitored for the two patients are different i.e., one patient’s heart beat rate (number of beats) are monitored and the second patient’s temperature and humidity are monitored. To achieve this, wireless communication technology (GSM) is used in this project. Whenever any of the parameters that are monitored goes abnormal, automatically a SMS is sent to the concern authorized person’s mobile through the GSM modem interfaced to the controller.The project deals with the design and development of hardware and software for temperature, humidity and heartbeat measurement of patients over GSM mobile. The patient’s health is monitored by the controller through a mode switch connected to it individually. These parameter values are displayed in the LCD interfaced to the controller.
The health parameter values will be sent to the doctor when any abnormal condition exists through the GSM modem. The modem provides the communication interface. It transports device protocols transparently over the network through a serial interface. The GSM modem is a wireless modem that works with a GSM wireless network. A wireless modem behaves like a dial-up modem. The main difference between them is that a dial-up modem sends and receives data through a fixed telephone line while a wireless modem sends and receives data through radio waves.
The system also activates the alarm circuit whenever the parameters exceed the normal conditions. For measuring the heart beat rate, a sensor is used that is to be placed at the tip of the patient finger. When heart muscle contracts blood is ejected from the ventricles and a pulse of pressure is transmitted through the circulatory system of human body. This pulse of pressure can be monitored at finger tips; here for this purpose using IR sensors blood flow can be monitored.
The arrangement is made such that the infrared light emitted through IR led to be passed through the fingertip, at the other end using infrared sensor, the IR energy delivered through the finger is monitored. Depending up on the blood flow through fingertip there will be slight variation in the IR energy that is delivered through the blood intensity of finger. As both sensors arranged in a clip parallel to each other, these minute changes are detected and proportionate digital pulses are generated through op-amp. Based on these pulses, the microcontroller unit is programmed to count and display the pulses in the LCD.
In the same way, a DHT11 Sensor is used to measure the body temperature of the patient which is to be mounted on the patient body and also the humidity levels as well. In addition, a voice record cum playback chip is present and will be activated at specific intervals of time to announce the voice message to the patients.
