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IoT Overview (SENSORS (fundamental of sensor design (communication models,…
IoT Overview
SENSORS
types of sensors
system-on-chip
assembled
sensor O/P
motion, position, velocity (acceleration), force, pressure, flow, sound, moisture, light, radiation, temp
flexible sensors
wearable devices
strain / pressure sensors
e.g FlexiForce
e.g StretchSense
e.g Intelligent Sole
watch
nano material conductive ink
temp-based senor fabrics
self-adaptive smart sensors
achieve or maintain desired level of performance
traditional system design
adaptive system design
feedback control, adjust parameters
role of sensors
enabling building blocks
contribute to the development of IoT
synergistics technologies
add value to the IoT
applications
healthcare
E.g. Heart Rate and Breathing Detection System
industry :
E.g. Fire Alarm and Robotic System
home applications
E.g. Water Heater and Air-con System
sensor system
senses -> connection -> processor -> actuator
sensor -> input interface -> processing & control procedures -> actuator
fundamental of sensor design
energy storage area
power management module
RF module
sensing module
sensor -> MCU <--> transceiver
communication models
device-to-device
device-to-cloud
device to gateways
back-end data sharing
design life cycle
fusion and integration
control techniques
open loop control
use I/P to control O/P
without feedback
closed loop control
use O/P sensor data, and I/P data to control O/P
with feedback
determine the effect of the sensor data of O/P
multi-var control
multiple I/P and O/P
Evaluation
technical performance
sensitivity
detect and visualise change
accuracy
consistency with actual values
re-productivity
consistency between same conditions
recovery
ease of extracting past records
selectivity
detect and differentiate
lifespan
how long or how many cycle before it fails
evaluation and testing for safe and reliable function
Validation
component, functional, performance, security & data validation
testing coverage
functional testing
compatibility testing
usability testing
network testing
security testing
performance testing
service testing
operational testing
standard
IEEE 802.5.14
bluetooth
RFID
optimisation
considerations
consistency, stability, durability, security
integration
IoT trend
builders' & enterprise concerns
production / industrial IoT
building blocks
things
gateways
network and cloud
service creation and solution layers
Others
IoT platform
Johnny-five
developer platform
Intel XDK
code library
UPM & MRAA