文档介绍：第一题：
The proposed IoT architecture from a technical perspective is shown in Fig. 1.
It is divided into thretinal
ganglion
nerve
cells
which form
the
optic
nerve(Ye etal.,2010). Consequently, a camera
mounted on a pair of glasses can
be used to transmit image data to an implant attached to the retina, which is
formed by an array of body micro-sensors. This artificial retina (Schwiebert et
al., 2001) uses electrical impulses to stimulate the appropriate ganglion cells, which convert these electrical impulses into neurological signals. The generated response is carried via the optical nerve to the brain.
Currently,
researchers
are
working
to develop
an artificial
retina at
the
nanoscale. The venture Nano Retina is
developing Bio-Retina, a bionic retina
that incorporates several nano-sized components in a tiny retinal implant (see
Fig. 2). Bio-Retina is designed to replace the damaged photoreceptor in the eye
with
the equivalent
of
a 5000 pixel
(second
generation)retinal
implant.
It
transforms naturally received light into an electrical signal that stimulates
the
neurons,
which
send
the
images
received
by
Bio-Retina
to
the brain.
The
implant ’s nano -sized components are powered by a special
pair of activation
eyeglasses. In the next years, as technology evolves, it will be possible to
send information concerning the images captured by the artificial retina towards
the monitoring station (smart phone) (see Fig. 1), so that new IoT applications
to help people with visual impairments in their orientation, identification of
faces, etc. will be developed.
. RFID-based assistive devices. An essential RFID-based application is
the navigation system. It helps blind people find their way in an unfamiliar
area. RFID tags are distributed through the area. They can for example be placed
in the center of the sidewalks to