Hello, everyone!
Today, I would like to continue to share with you the medical application scenarios on WBAN (Wireless Body Area Network) technology.
The majority of existing methods in the literature are designed to monitor one or a few physiological markers for a single patient.
Fig. 1. In a medical center, a multi-patient monitoring scenario is depicted, with one room and one level representing one room and one floor, respectively.
Individual wireless sensor nodes in the system depicted in Figure 1 can wirelessly transmit physiological data such as heart rate, blood pressure, ECG, EEG, and EMG without the use of a wired connection. Each sensor will be wireless, and the physical features of the physiological signal will be taken into account when designing it.
Because dependable connection and accurate monitoring are critical for patient safety, the sensor nodes use a dedicated wireless link to minimize significant interference from other communication devices in a hospital setting. A high-performance, fault-tolerant wireless communication and monitoring system is designed and developed using hardware and software designs.
Researchers are now working on a comprehensive wireless body area network based on several frequencies in order to prevent interference and apply to various contexts. To send signals from the sensors on the body, we employ the MICS, WMTS, and 433 ISM bands.
We use UWB (Ultra Wide Band) technology for applications that require continuous signal monitoring, such as ECG/EEG/EMG, because a high data rate wireless communication is required.
The environment of the sensor nodes to be used, as well as their signal characteristics, will heavily influence the wireless strategy chosen. Furthermore, as shown in Figure 1, we interfaced our devices with IEEE 802.15.4 (Zigbee) and WiFi links to cover a vast region of a body area network.
Because these short-range wireless protocols are currently available and in use at medical institutions for a variety of applications, including a WBAN deployment with them will be an added benefit. These current wireless protocols, for example, can be used in a WBAN gateway to allow networking between CCUs and remote stations when placed in CCUs.
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