BloodConnect: Proximity Based Blood Donation Network with Real-Time Alerts and Tracking

Abstract

In most of the critical medical situations, getting the required blood on time is quite difficult as communication is slow and the donor information is spread across multiple sources. BloodConnect addresses this problem by using GPS enabled location services to link blood donors and recipients instantly. With this feature, hospitals can quickly identify donors who are both compatible and physically close to the emergency location. The system is developed using the MERN stack, MongoDB, Express.js, React.js, and Node.js, which provides a smooth user interface and efficient handling of data. Deployment is carried out through Docker containers so the platform remains stable across different hardware and software environments. Donors receive alerts through browser push notifications, and at the donation centre, a generated QR code
is scanned to confirm their presence and update attendance. The QR based checkin is also associated with a reward system to motivate more repeated blood donations. The data flow consistency and backend reliability are checked using
Postman. Eventually, the BloodConnect model improves transparency, speed and coordination of blood donation during emergency situations.