IoT Research for Future Hong Kong
Dr. CH Cheng
Logistics and Supply Chain MultiTech R&D Centre
Smart City
• Intelligent Traffic Signal Control
Smart Mobility for New Normal
• Landslide Detection and Alert System
Smart Environment in new normal
• Tree Management Sensor Network
Smart Living in new nominal
Smart Traffic Control System
Intelligent Traffic Signal Control
Reduced delay
Average time required to pass through the dam
400 sec
150 sec
Improved safety
Eliminating the need to negotiate opposite traffic at the narrow road
More certainty of traffic time
No more traffic deadlock and assistance from the Police
Dynamic Control the Green Time
Easy to install
No excavation works required for installation of smart devices
Benefits and impacts AUG
25 Operational since 25 Aug 2018
High Reliability
>97% up time
LSCM being first in Hong Kong • To confirm the effectiveness of
video analytics in traffic signal control under different weather conditions
• To convert a legacy system on the road into an intelligent signal control platform for long-term use
Camera mounted
on lampposts
Detection unit
5
Intelligent Pedestrian Light control
Making use of Thermal Technologies
1. Analyze the real-time pedestrian & vehicular traffic • Adjust & optimize the green-man time of pedestrian crossing
2. Distinguish by-passing / crossing pedestrians in the waiting zone • ‘Activate’ the pushbutton when pedestrians are waiting a green-man
• ‘Cancel’ the pushbutton if pedestrians leave the waiting zone before the green-man is shown
Green-man Signal
Issue Cancel
Identify Waiting Pedestrians
Waiting Pedestrians By-passing Pedestrians
Identify Persons
Pedestrians Umbrella holders
Landslide Detection & Alert System
Rigid Barriers
Flexible Barriers
Legend
Rigid debris-resisting barrier Flexible debris-resisting barrier Location of first pilot project
4G, SMS
Landslide Detection
Module on Rigid Barrier
Server on
cloud
iOS App /
GInfo
Wireless
Impact
switches
• Level sensor (laser)
• Camera
• Infra-red lighting
• Control unit
• Solar panel + battery
Return signal:
Impact time
Debris thickness
Photos (regular, at request, when impacted)
Regular heart-beat
Battery level
4G
Server on
cloud
iOS App /
GInfo
Control unit on RB
Landslide Detection
Module on Flexible Barrier
• Displacement Sensor
Radio Frequency (for short
range)
Return signal:
Displacement and Pull triggering time
Regular heart-beat
Battery level
Rainfall on 24 May 2017
Desktop website
Mobile Apps (iOS)
Click to capture image
5 hours peer shoot
Capture image if impact switch
triggered
Impact time Last update
13
• Queen Mary Hospital
• Shatin Hospital
• Tate’s Cairn Tunnel Fee Collection Area
• Sai Wan Road, Sai Kung
• Sham Tseng San Tsuen
HKUST’s Testing Facility
Other sources of energy
Tree Management Sensor Network
Monitoring Centre
LoRa / NBIoT Communication
between Tree Group and Control Center
Sensor Devices Mounted on Trees
Communication between Trees
within a Tree Group
On-site Barometer, Wind Speed &
Direction Sensor
Monitoring Tilt Angle and Orientation
Features of the system • Dual Power Supply
• Solar Energy • Battery
• Dual Communication Channel • NBIoT • LoRa
• Collection of Wind Direction & Rainfall data on site • Weather Station
Centralized System
(Overall Properties Management)
Site #1 Site #2 Site #X
Tree Management System
Terminal
Tree Sensors
Tree Management System
Terminal
Tree Sensors
Tree Management System
Terminal
Tree Sensors
Internet Internet Internet
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