TY - GEN
T1 - Inkjet Printed Passive RFID Sensor for Wetness Detection of Diapers
AU - Sharif, Abubakar
AU - Liaqat, Sidrah
AU - Arshad, Kamran
AU - Assaleh, Khaled
AU - Ramzan, Naeem
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Infants, the elderly, people with disabilities, and patients in hospitals are among those who use disposable diapers. Event-based alerting regarding the wetness level of diapers can improve care for this population by improving incontinence management, decreasing the risk of getting cold, rashes, and infections. Therefore, this paper presents an inkjet printed ultra-high frequency (UHF) radio frequency identification (RFID) sensor for wetness detection of diapers. The proposed sensor design consists of an L-shaped radiator, a T-shaped loop, and two small stubs. The loop is connected to Impinj R6 RFID chip and joined at the middle of L-shaped radiator. This sensor design covers a bandwidth ranging from 900-935 MHz along with a read range of 2.5 m. The tag antenna is optimized to work on water filled slab with a low conductivity value (0.05). However, the realized gain of this sensor reduced drastically after increasing conductivity. An experiment is conducted to record the difference between received signal strength indicator (RSSI) of the empty, water and urine-filled diaper. So, the proposed sensor can be useful for sensing the wetness level of both adult and baby diapers.
AB - Infants, the elderly, people with disabilities, and patients in hospitals are among those who use disposable diapers. Event-based alerting regarding the wetness level of diapers can improve care for this population by improving incontinence management, decreasing the risk of getting cold, rashes, and infections. Therefore, this paper presents an inkjet printed ultra-high frequency (UHF) radio frequency identification (RFID) sensor for wetness detection of diapers. The proposed sensor design consists of an L-shaped radiator, a T-shaped loop, and two small stubs. The loop is connected to Impinj R6 RFID chip and joined at the middle of L-shaped radiator. This sensor design covers a bandwidth ranging from 900-935 MHz along with a read range of 2.5 m. The tag antenna is optimized to work on water filled slab with a low conductivity value (0.05). However, the realized gain of this sensor reduced drastically after increasing conductivity. An experiment is conducted to record the difference between received signal strength indicator (RSSI) of the empty, water and urine-filled diaper. So, the proposed sensor can be useful for sensing the wetness level of both adult and baby diapers.
KW - Internet of things (IoT)
KW - Passive RFID Sensor
KW - UHF RFID tag
KW - Wetness Detection
UR - https://www.scopus.com/pages/publications/85151710152
U2 - 10.1109/IMAS55807.2023.10066932
DO - 10.1109/IMAS55807.2023.10066932
M3 - Conference contribution
AN - SCOPUS:85151710152
T3 - 2023 International Microwave and Antenna Symposium, IMAS 2023
SP - 172
EP - 175
BT - 2023 International Microwave and Antenna Symposium, IMAS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1st International Microwave and Antenna Symposium, IMAS 2023
Y2 - 7 February 2023 through 9 February 2023
ER -