RF Based Patient Monitoring System

This project includes the branch of Biomedical Engineering. This project aims at monitoring the patient’s health conditions continuously. The parameters like the pulse rate, pressure, blood sugar, urea content in the blood are to be monitored continuously. In other words, the doctor will be diagnosing the patient continuously. This project uses the wireless concept, RF. The project is designed in such a way that, the analog quantities which are to be recorded continuously are taken and converted into corresponding digital values using an eight channel ADC. Here we consider temperature and heart beat sensors to monitor the temperature and heart beat respectively. The processed data from ADC is sent to microcontroller. The microcontroller passes this data to the RF transmitter through the RF encoder to encode the data received by the controller. The transmitted data will be received by the RF receiver and will be passed to the microcontroller through an RF decoder which decodes the encoded signal. The microcontroller continuously monitors the signals received, and performs the predefined task of displaying the corresponding data on the LCD. The doctor can continuously check whether the temperature and heartbeat are normal or not by monitoring the LCD and take the immediate action if necessary. This project uses regulated 5V, 500mA power supply. Unregulated 12V DC is used for relay. 7805 three terminal voltage regulator is used for voltage regulation. Full wave bridge rectifier is used to rectify the ac output of secondary of 230/12V step down transformer.