IEEE Consumer Electronics Magazine - March/April 2021 - 70

Consumer Technology-Based Solutions for COVID-19

Figure 2. First prototype device.

ability to identify the grapefruit essential oil. The
grapefruit essential oil is sprayed to the environment at certain intervals via the IoT-based automatic air freshener dispensers, which should be
provided by the government or local authorities.
They should be placed to cover the entire area
of private spaces such as houses and apartments, and various commercial spaces such as
s, and restaurants. During each emisbars, cafe
sion, the Bluetooth beacon in the dispenser
sends information about spraying to inform
wrist-worn devices or mobile phones. Then, an
increase in blood pressure is expected in about
10 min after the beacon notification. If not, the
user is informed of the possible loss of smell.

Results
The first rapid prototype device is presented in
Figure 2. All measurements were taken in the daytime from 9:00 A.M. to 6:00 P.M. for 7 days; it could not
be tested during the sleep periods of the subject,
since the rapid prototype was not a compact one.
The subject is a 36-year-old male healthy individual.
The body temperature was measured at certain
time intervals, and the daily average body

Figure 3. Average body temperature, time spent
during eating and drinking, heart rate.

70

Figure 4. Respiratory rate, number of cough,
number of steps.

temperature changes are shown in Figure 3. The
average heart rate and the time spent during eating
and drinking are also shown on the same graph.
The respiration rate of the subject, the total number of coughs detected during the measurement
period, and the number of steps are shown in
Figure 4. The changes in the blood pressure of the
subject within 30 min after the release of grapefruit
essential oil to the office via the IoT-based automatic air freshener dispenser are presented in
Figure 5.
In order to use the battery more efficiently,
the device does not contain any LCD screen. All
kinds of notifications are made with a LED on the
device. Detailed notifications and data analysis
are shown on a mobile application on the user
smartphone. Moreover, if some of the possible
symptoms are detected, this information is transferred to the hospital database and the ministry
of health database via the mobile application.

Figure 5. Changes in DBP after releasing of
grapefruit essential oil.

IEEE Consumer Electronics Magazine



IEEE Consumer Electronics Magazine - March/April 2021

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