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1© 2015 The MathWorks, Inc.
Developing Signal Processing
Applications for the Internet of Things
Jegan R Mani
Pilot Engineer
2
Agenda
IoT and its components
Developing and deploying algorithms for Edge Nodes
Connecting to Aggregation services
Conclusion
Q&A
3
Internet of Things
Internet
Thing
Thing
Thing
ThingThing
Thing
Thing
?
4
Sensors & Actuators
Consumer
Transportation
Infrastructure
Healthcare
Industrial
Internet of Things
Internet
• Application
Integration
• Data Collection
• Analytics
• Visualization
• Security
!
5
Technologies Enabling IoT
Low-cost low-power sensors
and actuators
– Data validation and clean-up
– Smart control techniques
Ubiquitous connectivity
– Wired / wireless communication
Data aggregation and analysis
– “Big data”
Signal & Image Processing
Control Systems
Communications System
Design
Cloud computing, Statistics
& Machine Learning
6
Components of IoT
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Types of Edge nodes
Classification based on Node types
– Intelligent Nodes
– Dumb nodes
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Intelligent Node
Capable of making local decisions
May have node level aggregation
May have local analytics capabilities
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Developing signal processing algorithms
Access to data
– Android sensors
10
Developing signal processing algorithms
Algorithm developmentExplore and Discover
Data Analysis
& Modeling
Algorithm
Development
Application
Development
11
Developing signal processing algorithms
Deployment of algorithm as an Android App
– Android Support package Reporting and
Documentation
Outputs for Design
Deployment
Share
12
Machine learning for activity detection
13
Types of Edge nodes
Classification based on Node types
– Intelligent Nodes
– Dumb nodes
14
Dumb Node
Nodes act only as sensors
Low frequency of update
No local aggregation
15
Architecture
Weather
StationArduino
Internet
Data
aggregator
(ThingSpeak)
MATLAB
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Connecting to Data Aggregator
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Thingspeak connectivity
Write to a thingspeak channel from MATLAB
Read from a thingspeak channel from MATLAB
Write to a thingspeak channel from a embedded
hardware
18
Exploratory Analysis
19
Exploratory Analysis
20
Available Online On File Exchange
21
Conclusion
22
Q & A
23
Thank you !
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