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