Micro controller based Heartbeat, blood pressure and body temperature monitoring and alerting system using GSM modem

Abstract

Primary parameters in defining the health condition of the human body are heartbeat, blood pressure and body temperature. Monitoring them all at once is a costly process. In this paper, a low cost and portable method is proposed and implemented to measure heartbeat, blood pressure and temperature from human body using the microcontroller device with LCD output. Heart rate of the subject is measured from the finger using infrared sensors. Blood pressure using wrist band and temperature by temperature sensor. The noisy output signal from the sensors is stripped out of unwanted components with the help of a hardware and then given to micro controller which is displayed on a text based LCD. Furthermore the same information is analyzed by microcontroller and an alert is triggered if those values fall out of the range of predefined threshold limits. This is useful to monitor vital parameters at low cost and trigger an alert to intimate this condition to care takers via message using a GSM modem