Vital Signs Monitoring System With Gsm Inquiry Capability

The goal of the study is to be able to develop a device that is able to detect and measure a person's vital signs namely the body temperature, pulse rate and blood pressure while also be able to send the measured readings through text messages once an inquiry was received. The project is built on Arduino UNO, which will become the brain of the entire project connected to it are components such as a DS18B20 V2 Temperature sensor for body temperature measurement, a Pulse sensor for pulse detection and beat- per-minute measurement, a Pressure transducer for the blood pressure measurement, a SIM900 GSM module used to communicate between the microcontroller and the inquirer. In order to measure the blood pressure, the researchers were required to create a digital sphygmomanometer which consists of a rubber cuff, an air pump, an air valve.
A 10A 2 Channel Relay used to control the pump and valve, and a Pressure transducer which is also connected to the microcontroller. This is used to replicate the function of a sphygmomanometer while also using the readings from the Pulse sensor as a replacement for the manual detection of the pulse produced ftom the blood flow which is important in detecting the systolic and diastolic blood pressures. In this study, the proponents used a GSM module as a means to communicate between the inquirers phone and the microcontroller. The proponents tested that the GSM module provides optimum function when supplied with a 12V 2A supply and a decent signal coverage.