Projects: IoT based on Cloud Ruixuan Dai Spring, 2020 - PowerPoint PPT Presentation

Projects: IoT based on Cloud Ruixuan Dai Spring, 2020

Internet-of-Things Ø Things (Devices) q Many of them • Different Types • Isolated Systems q Data and Command • Sensing the world • Give Response q Challenge • United: Connected + Communication • Smart: Data Analytics + Strategy 1/28/20 2 Source: https://aws.amazon.com/iot-platform/ http://www.brain-smart.net/smart-brain-health-blog/page/2/#axzz4W4oSp8a6

AWS IoT platform Smart: Other Cloud Service United: Connect + Communication Data Storage Stated: “Thing Shadow” Machine Learning 1/28/20 3 Source: https://aws.amazon.com/iot-platform/

Recap: Hello AWS IoT! Forward Publish Amazon SNS Temperature sensor Period: 5s (0.2Hz) Smart Sensing Connecting 1/28/20 4 Source: https://aws.amazon.com/iot-platform/

Some IoT system projects in our lab

Timed Up and Go @ Home Ø Timed Up and Go (TUG) Test q A test of mobility and fall risk in community-dwelling, frail older adults [1] q Widely used in hospital • Test before surgery • Predict Falls q Only measure the total time by the doctors Can we do TUG @ home with more measurements? 1/28/20 6

Smartwatch TUG systems Ø A cloud-based Smartwatch TUG system q Send reminders to the subjects q Automatically collect and analyze the motion data q Doctors can see the results in real time. 1/28/20 7

TUG test Result Ø The analysis is on cloud with AWS Lambda Raw Motion data 1/28/20 8

Smartwatch TUG System Architecture Ø Cloud based IoT system Result Storage Upload data Feedback AWS S3 data storage Data analysis q Sensing • Smartwatch motion sensors q Connection • Auto upload the sensor data to AWS S3 • S3 triggers an event to AWS Lambda q Smart • AWS Lambda does the smart analysis • Give the feedback to the doctors 1/28/20 9

Alexa Voice-Agent for mental health Ø A smart voice-agent based Amazon Alexa q An “App” in Alexa is called as a skill q Guided Breath exercise to help soothe the patients • Mindfulness is reported to be able to relief stress[1] [1] Academic Mindfulness Interest Group, Melbourne, and Melbourne Academic Mindfulness Interest Group. "Mindfulness-based psychotherapies: A review of conceptual foundations, empirical evidence and practical considerations." Australian and New Zealand Journal of Psychiatry 40.4 (2006): 285-294. 1/28/20 10

Mindfulness Skill Architecture Ø Echo device as frontend (Sensor and actuator) q Get patients’ feelings; help the patient relaxed. Ø Alexa Skill platform (Middleware) Ø AWS Lambda (Analysis) q Build a database for each patient (AWS DynamoDB) User info User info Table 1/28/20 11

Recap: IoT concepts Ø Sensor & actuator q Smartwatch, Raspberry Pi (with Camera, mic), motion sensors… q Stepping motor, Light bulb, A/C Ø Connection q AWS IoT… • You don’t need to use AWS IoT, but you need to connect your devices to other devices or cloud. Ø Smart q AWS Machine learning • Analyze the big data from the sensors, then make a smart decision 1/28/20 12

Q&A Ø Feel free to email me about any questions. q dairuixuan@wustl.edu 1/28/20 13