Steve Liang with SensorUp and the University of Calgary gave a focused presentation of the relevance of the OGC SensorThings API Standards in edge computing. His presentation highlighted the efficiency data transport in the standard protocols and the requirement to both pull and push data between devices and the cloud. Dr. Liang also presented use cases from an operational exercise performed for the U.S. Department of Homeland Security using SensorThings in a first responder scenario.
9. 2019 SensorUp Inc.
SensorThings’ Design considered Use Cases at the Edge
• Efficient Transport Protocol - CoAP and MQTT
• Pub/Sub - avoid unnecessary requests/polling
• Developers 💖 MQTT
• Stateless STA Extension
• easy for hardware vendors
• STA GeoJSON Extension
• easy for client developers
10. Dept. of Homeland Security Next Generation First Responder
Operational Exercise – 2018-12-04~12-05
11. Proprietary and confidential, 2018 SensorUp Inc.
DHS Next Generation First Responder
Operational Exercise 2019 – Birmingham, Alabama
12. 2019 SensorUp Inc.
SensorThings at the Edge
First Responder SensorThings Hub
MQTT
gateway
Sensor
IoT
MQTT
protocol
First Responder
SensorThings
Hub for Android
Sensor
Drivers
Sensor
Sensor w/
MQTT
SensorThings API
Cloud
Stateless
SensorThings
Extension
Data Consumer
at the Edge
(e.g., mixed
reality headset)
Full
SensorThings
API over MQTT
and HTTP
Different
Situational
Awareness
Dashboards
SensorThings
GeoJSON
Extension
Edge Cloud
13. When there is no Internet
Local Data Center on Mobile Command Center
14. 2019 SensorUp Inc.
SensorThings at the Edge - 2
First Responder SensorThings Hub
SensorThings
MQTT
Gateway
Sensor
SensorThings
MQTT
First Responder
SensorThings
Hub for Android
Sensor
Drivers
Sensor
Sensor w/
MQTT
SensorThings API
on a Local Area
Network
Stateless
SensorThings
Extension
Data Consumer
at the Edge
(e.g., mixed
reality headset)
Full
SensorThings
API over MQTT
and HTTP
Different
Situational
Awareness
Dashboards
SensorThings
GeoJSON
Extension
Edge Edge
SensorThings API
on a Wide Area
Network
Cloud
15. Proprietary and confidential, 2018 SensorUp Inc.
Future Works
A STA standard mechanism to synchronize STA edge devices and STA services.
e.g., concept similar to AWS IoT Shadow
A STA mechanism to define how edge nodes working collectively to perform computation (e.g.,
decentralized computing and/or peer-to-peer computing protocols)