Feasibility Study and Design of a Wearable System-on-a-Chip Pulse Radar for Contactless Cardiopulmonary Monitoring

Abstract

A new system-on-a-chip radar sensor for next-generation wearable wireless interface applied to the human health care and safeguard is presented. The system overview is provided and the feasibility study of the radar sensor is presented. In detail, the overall system consists of a radar sensor for detecting the heart and breath rates and a low-power IEEE 802.15.4 ZigBee radio interface, which provides a wireless data link with remote data acquisition and control units. In particular, the pulse radar exploits 3.1–10.6 GHz ultra-wideband signals which allow a significant reduction of the transceiver complexity and then of its power consumption. The operating principle of the radar for the cardiopulmonary monitoring is highlighted and the results of the system analysis are reported. Moreover, the results obtained from the building-blocks design, the channel measurement, and the ultra-wideband antenna realization are reported.

Wireless Technology in Disease Management and Medicine

“…Such work has shown promising noncontact measurement of the ECG, which can detect a coarse heartbeat at a distance of several centimeters. Radar has also been used to measure BR and HR in low-power Zigbee-compliant devices such as that proposed by Zito et al (38) and Scilingo et al (39), which can be integrated into the fabric of a shirt. Audio and video analysis is also being used to identify sleep-related diseases (21), Parkinson's disease (22), and depression (23).…”

Review: Emerging Trends in Healthcare Adoption of Wireless Body Area Networks

“…Costa et al 62 presented a case study of the Ambient Assisted Living for All project, the goal of which was to develop a novel ambient assisted-living environment that would provide a platform for interoperable hardware devices and software in a home environment. By incorporating artificial intelligence into the environment-software cycle that exists in typical sensor systems, the 20 presented a novel wearable wireless interface for monitoring heart beat and breath rates. An ultrawide band radar sensor and a lowerpower radio interface were embedded within a garment that detected, recorded, and transmitted data to a remote acquisition unit.…”

22.7-dB Gain $-$19.7-dBm $ICP_{1{\rm dB}}$ UWB CMOS LNA

“…From system simulations of the UWB radar for the cardiopulmonary monitoring, it is derived that the relevant part of the energy of the signal received (i.e., echo) is concentrated in the lower region of the UWB spectrum (3.1-10.6 GHz) [3].…”

“…Manuscript This brief is focused on the design of a novel UWB CMOS LNA. In particular, this LNA will be adopted as the first stage of a system-on-chip (SoC) UWB radar for cardiopulmonary monitoring [3].…”