When disaster strikes, healthcare systems are often pushed beyond their limits. Earthquakes, floods, pandemics, industrial accidents, military conflicts, and large-scale emergencies can disrupt traditional hospital infrastructure within minutes. In such situations, the ability to provide continuous and reliable patient monitoring becomes one of the most critical components of emergency medical care. Healthcare teams working in ambulances, temporary medical camps, rescue operations, rural settings, and emergency transport environments require monitoring systems that are not only accurate but also portable, durable, and connected. Traditional bedside monitoring systems, although highly effective inside hospitals, are often difficult to deploy rapidly in dynamic emergency scenarios...