Personal health monitoring or personal health tracking is done by individuals using intelligent tools like wearable sensors and mobile applications to collect, process and display a wealth of personal data to help them monitor and manage all aspects of their personal health. In this paper, a personal health monitoring system is proposed based on Android based mobile phone. The system is able to collect the sensor data to monitor the basic vital parameters such as heart rate using PPG signal from the non-invasive body sensors to the patient's android based Smart phone using Bluetooth technology. An Android application is developed to read the PPG signal over Bluetooth. The received signal has been further processed to acquire vital parameters such as heart rate. A live streaming graph as part of the mobile application is used to display the physical parameter in easily understandable manner. If the received signal range is beyond the threshold level, then a warning message will be send to the doctor and the caretakers. The captured data in Android will be stored in local SQLite database and sent to the centralized server when connectivity is available in the mobile phone. The centralized server offers web services that will receive data from various mobile and other client devices and log the data into a centralized database. The data will be available for consultants to track history of records. The proposed system will allow users, especially seniors with heart diseases and other continuous monitorable diseases, to conveniently record daily test results and track long term health condition, and their changes regardless of their locations. It does so without having to ask users to manually input them into the system. This system further integrated with GPS, and Google Map functionalities facilitate the user to trace the hospitals and consultants near their current location.
