Design and Implementation of Analog Transceiver Circuit for Patient Monitoring System based on OWC
Adiono T.a, Armansyah R.F.a, Salman A.H.a, Fuada S.a
a University Center of Excellence on Microelectronics, Insitut Teknologi Bandung, IC Design Laboratory, PAU Building, ITB Campus, West Java, 40132, Indonesia
Abstract
© 2018 IEEE.In this paper, we present the design and implementation of analog front-end (AFE) module for patient monitoring system based on optical wireless communication (OWC). The communication link uses visible light as a downlink and IR as an uplink communication. The wireless patient monitoring system consists of two parts: host or coordinator and client or patient device. On the patient device part, we designed the PCB with a shield configuration so the AFE module can be connected directly to GPIO’s microcontroller unit (MCU) without any cable. Moreover, the AFE module is attempted to have a similar size with the MCU. Hence, the patient device has a small-size, minimum of wires, wearable, and low-complexity. The AFE receiver output is a digital waveform. Therefore, it is compatible with On-off Keying (OOK) modulation. The AFE module can be switched digitally up to 25 KHz of optical frequency for visible light downlink and 1500 Hz optical frequency for IR uplink. The optical link distance can reach up to 2 meters with 0° of reception angle.
Author keywords
Analog front end,Design and implementations,On-off keying modulations,Optical wireless communications,Patient monitoring systems,Shield configuration,Transceiver circuits,Uplink communication
Indexed keywords
Analog Front-End,IR communication,Optical Wireless Communication (OWC),Visible light communication,Wearable patient monitoring