Batteryless radio system for hospital application

This paper presents a design of a batteryless and wireless system that can be used in hospitals to call nurses. Compared to actual nurse calling systems, the proposed transmitter neither needs batteries nor long wires to provide energy. Therefore, it is maintenance-free and can be easily installed. The key feature of the proposed system is that it will harvest its energy from motion. When a patient presses the push button to call a nurse, the mechanical energy converter will convert this small movement into electrical power, and then a radio signal is sent to the receiver module. This activates an alarm at the nurse station's display. Also, this alarm is forwarded to other platforms such as nurse's smart phone and smart watch. The goal of this work is to develop a smart, green, and wireless system unlike most of current nurse calling systems in which are not necessarily the case. Also, the proposed system is user-friendly and Internet of Things (IoT) based architecture.