S9206: Edge Computing with Jetson TX2 for Monitoring Flows ......—Camera (USB webcam / existing...
Transcript of S9206: Edge Computing with Jetson TX2 for Monitoring Flows ......—Camera (USB webcam / existing...
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S9206:Edge Computing with Jetson TX2 for Monitoring Flows of Pedestrians and Vehicles
Dr J. Barthélemy and Dr N. Verstaevel
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Everyday you are spotted by 75 CCTV!
Open-Street CCTV in Australia: A comparative study of establishment and operation (Wilson and Sutton, 2013)
Cost?
Really?
Maintenance
Monitoring staff
Sydney $900,000
Melbourne $400,000
Adelaide $310,000
Brisbane $270,000
Toowoomba $85,000
No one/Record only
Council Staff
Private Security / Council Staff
Private Security Only
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Agenda
• Who are we?
• Why monitoring traffic using edge-computing?
• The sensor
• First experiments and results
• Conclusion and next steps
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Edge Computing with Jetson TX2 for Monitoring Flows of Pedestrian and Vehicles
At SMART, we believe that People with good
information and good tools will make good
Decisions and change their world
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Traffic in 1960
Title: George Street looking north, Sydney
Date: c. 01/01/1960
Digital ID: 17420_a014_a0140001213
Rights: No known copyright restrictions
https://www.records.nsw.gov.au/image/17420_a014_a0140001213
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Traffic in 2013
Description Southbound traffic congestion on George St, Sydney
Date 23 June 2013, 17:26:45
Source A crop of George Street-1.jpg
Author Sardaka
https://upload.wikimedia.org/wikipedia/commons/0/05/George_Street_congestion_during_evening_peak_hour_2013.jpg
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Document title12
68% of the world population projected to live in urban areas by 2050
Photo by Alex Jodoin on Unsplash
9 in 10 breathe polluted air
Air pollution causes1 in 9 death worldwide
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Smart Cities, Smart Liverpool, Smart Pedestrian Project
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+/- 30,000 inhabitants
The case of Liverpool
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The case of Liverpool
CBD is growing fast: UoW campus, airport,…
What does it mean for the city and its community?
Smart Cities and Suburbs Program: How can IoT inform the city?
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+30k commuters
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Community engagement
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https://www.arkilab.dk/
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Results from the workshop
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Desirable solution– Real time multi-modal detection and tracking
– Privacy compliant
– Interoperable and scalable
– Leveraging existing infrastructures
Issues– Traffic and lack of parking space as major problem
– Not cycle-friendly
– CBD suffers from lot of car traffic and noise
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How about using CCTV?
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Privacy!
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History of the prototypes
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+ open source software
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The sensorAn edge computing device
Components
— NVIDIA Jetson TX2 for onboard processing
— Pycom LoPy 4 for data transmission on The Things Network
— Camera (USB webcam / existing CCTV)
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The sensorActual state…
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The sensorConfiguration
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The sensor: DeploymentLoRaWAN Rack version
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The sensor: Deployment3U Rack version for oneM2M
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From the input to the dashboard
Image Acquisition
• CCTV/Webcam
Detection
• YOLO V3
Tracking
• SORT
Data transmission
• LoRaWAN/oneM2M
Database + Dashboard
Image credit: NVIDIA Corporation
Image credit: Pycom
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Darknet
Detection: YOLO v3𝑥, 𝑦, 𝑤, ℎ 𝑂 𝑝1, … , 𝑝𝑐
box coordinates score class probabilities
× 𝐾
#boxes predicted/cell
Non-maximumsuppression
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• Fully convolutional• 106 hidden layers• Detections at 3 scales• 6 classes: person, bicycle, 3 type of vehicles
Training: Titan V
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Detection: YOLO v3
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Image credit: Redmon, J. and Farhadi, A. (2018). YOLOv3: An Incremental Improvement
YOLO v3 performances
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Multi-object Tracking: SORT
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Prediction of Oin current frame
Position of O in previous frame
Detections in current frame
𝑥
𝑦
• Kalman filtering• Hungarian Algorithm• IoU
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Detection: YOLO v3• Detecting locations of pedestrians and vehicles
• Number of objects of each type
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VIRAT Video Dataset
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Tracking: Kalman Filtering• Associating IDs with the detections
• Trajectories
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VIRAT Video Dataset
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Final output
No image Privacy OK!
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Modelling
Analytics
Dashboard
Citizens app
Sensors IoT Core ApplicationsTransport
Agnosticity
Liverpool Smart Pedestrian architecture
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● Open source service platform for M2M interoperability
based on the oneM2M standard.
● Follows a RESTful approach GET/POST/DELETE/SUBSCRIBE
● Access control policies
● Plugins
● Can be decentralised with multiple nodes
● Support different technologies:
○ Lora
○ Zigbee
○ Sigfox
○ Bluetooth Low Energy
○ Z-wave
OM2M Eclipse
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From vertical integration…
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… to horizontal integration
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Dashboard
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Dashboard
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Dashboard: air quality vs traffic
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Dashboard: trajectories and heatmaps
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Dashboard: data into context
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Dashboard
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Dashboard: trajectories on heatmap
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DashboardTrajectories of the detections (inside a building)
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DashboardHeatmap of the maximum number of the detections (inside a building)
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Dashboard
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Next steps: Inferring network dynamics
Image credit: OpenStreetMap Image credit: Google Maps
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Next steps: Algorithm transferabilityTesting in Vietnam
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Next stepsImproving training dataset
data augmentation
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Next steps: Jetson AGX Xavier + TensorRT
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Preliminary tests: 100% increase in performance
Image credit: NVIDIA Corporation
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ConclusionsIt’s only the beginning!
• Jetson TX2 for real time object detection and tracking
• Privacy compliant… but meaningful information
• Open data for people centric approach
– citizen applications
– city and traffic planners
• IoT core scalable and interoperable
– adding new sensors: air quality, noise, …
ModellingAnalyticsDashboardCitizens app
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But it’s already successful! Best Local Government Initiative
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An ecosystem around the Jetson TX2
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Keep In Touch
linkedin.com/company/smart-
infrastructure-facility-university-
of-wollongong
@SMART_Facility
smart.uow.edu.au
uowblogs.com/smartinfrastructureSMART Infrastructure Facility
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Image credit: https://towardsdatascience.com
YOLO v3 architecture
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Detection: YOLO v3
Inference: Jetson TX2Training: Titan V
• Fully convolutional DNN• 106 hidden layers• Detections at 3 scales• 3 classes: person, bicycle, vehicles
cuDNN
FP16+ +
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