This document discusses ITRI's research into visible light communication (VLC) technology for indoor positioning and communication applications. It provides the following key points: 1. ITRI has developed high-speed VLC transceivers capable of 100Mbps transmission over 3 meters that can enable integrated indoor communication and lighting. VLC provides benefits like high security, accurate indoor positioning under 1 meter, low cost, and no electromagnetic interference. 2. ITRI has conducted field trials of VLC indoor positioning systems in various settings like offices, hospitals, and exhibition rooms. These trials have demonstrated applications like location-based check-ins, automatic information downloading based on doctor position, and navigation within venues. 3. Compared to

1. ITRI LED VLC and Indoor
Positioning Technology
ITRI/ICL DarZu Hsu
2015.12

2. 2
http://technologies.cttc.es/m2m/technology-transfer/visions/
http://jonatasmattes.blogspot.tw/2013/06/lifi-alternative-to-wifi.html
LED VLC for Communication & Indoor Positioning
Visible Light Communication
 Integrated Communication and
Lighting
 High Security for Network
 High Accurate Indoor Positioning
 Green and Cost-effective
 No EMI
 License-Free
You Are
Here
Visible Light Communication (VLC)
Using LED Light to Achieve Data Transmission
LED Light
1
0
1
0
1
0
1

3. 3
Hospital
Shopping Mall
Office Home
Store Outdoor Advertising
Vehicle to Vehicle
Airplane
VLC Applications
Underwater Communication
Exhibition

4. 4
Fraunhofer/HHI
1Gbps
VLC
UK PureLiFi
10Mbps via USB
Battery
VLC TRx
EPSRC's UP-VLC Project
(University of Edinburgh/Cambridge/Oxford)
Real-Time124Mbps
Offline3Gbps over 5cm
High Power LED
VLC TRx
Worldwide Development of VLC
Enter the Hypermarket VLC APP Navigation &
Coupon
Find the Product
 Philips / Acuity (Bytelight) developed VLC LBS technology and built some field trials

5. 5
ITRI Real-Time Broadband VLC Transceiver
LED Lighting Side
Client Side
100Mbps
3 m

6. 6
Visible Receiver
IR Emitter
Angle adjustment
17.5mm
30mm
PD + aspherical Fresnel lens
VLC USB Dongle
lens
PD
PD + aspheric lens
28mm
30mm
VLC Transceiver
Broadband VLC USB Dongle

7. 7
Secure Meeting Room Communication Application
 Transfer broadband VLC technology to local conference system company
 Provide wireless communication  Avoid wiring troublesome
 Support secure wireless transmission
Phosphor LED
PIN Rx
AFEDSP
Ethernet
LED Lighting Side
Microphone Unit
數位無線會議主機
桌上型圖型會議
控制軟體平台
IR LED
PIN Rx
Lens AFE DSP
行動式圖型會議
控制軟體平台
中央控制主機
This Work
VLC Client
Module
Conference
System VLC Light Module
VLC Client Module
Conference System

8. 8
LED Indoor Positioning System
Jerry is here
ID-1 ID-2 ID-3 ID-4 ID-5
Remote
Management
System
Indoor Positioning System
LED Lighting/Positioning Module
VLC Rx
You are here
 Different LED VLC can transmit different ID
 Each person and management center can get where you are
simultaneously
 The accuracy of LED positioning is <1 m
Jerry
Management Central

9. 9
ITRI VLC Indoor Positioning Platform & Field Trial
 Area of VLC Indoor Positioning Platform covers our lab and corridor
Wearable VLC Positioning Module
VLC Module
Remote Management SystemLab
Corridor
Remote Manage. System

10. Management System of ITRI VLC Indoor Positioning
Data1 & Control
Light2 Monitor
Data3 & Control
Light3 Monitor
Staff Scheduling
LED Lamp
Management
Route Record &
Analysis
Staff List
Indoor Map
Management

11. 11
Far-Eastern T-Park VLC Positioning Provide Check-In Function
– Security guards can automatically complete check in as
passing through VLC LED
– Security guard management system can automatically
achieve the patrol management and improve the efficiency
Security Guard Management in Far-Eastern Telecom Park
Jerry is hereID-1 ID-2 ID-3 ID-4 ID-5
Security Guard
Management
LED Lighting/Positioning Module
VLC Check-In System
Jerry
VLC RxRx Module
Rx Module

12. Hospital VLC
Ward Location Identification
Broadband VLC
ER Treatment Route Record
 Hospital hopes to improve the efficiency of “doctor rounds”
 Using VLC to detect the location of doctor & auto-download the patient information
 Hospital hopes to record the emergency route to verify the emergency SOP is correct
 Using VLC to achieve location-identification & treatment route record

13. Hospital Location Aware & Auto Information Download
Remote Server
PositioningID#1
PositioningID#2
Positioning
VLC
Broadband
VLC
Positioning
VLC
Broadband
VLC
Auto-download
110
010
101
010
001
Auto-download
VLC Positioning
Detect the Doctor
RF RF
Patient A
Information
Patient B
Information
A B
101
011
001
110
011
Auto-download Patient Information
Technology iBeacon VLC
Accuracy 0.3m ~ 5m < 1m
Interference
Sensitive
(2.4~2.48GHz)
Not Sensitive
(430~750THz)
Data Rate <1Mbps >100Mbps
Installation
Complex  Need a
planning tool
Simple  Build with
LED Lamp
Manage.
Complex
(Need Battery)
Simple
(No Battery)
 Detect the doctor location  then automatically transmit the patient information
• Comparison of Positioning Technology

14. Hospital Emergency Treatment Route Record
管道間
管道間
Urgent Treatment Room
Emergency Door
Elevator
Elevator
Computerized Tomography
MRI
Endotracheal Intubation
1F
B1

15. 15
VLC App
ITRI VLC Smart Phone
VLC LED＋VLC Smart Phone
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0
0
1
1
1
1
1
0
1
1
0
0
0
0
1
1
1
1
VLC
Lighting
Signal
VLC Smart Phone
CMOS
Image Sensor

16. 16
ITRI Exhibition Room – VLC LBS
Booth#9 DM
VLC App shows
the Location & DM
Booth#1 DM
VLC Smart Phone

17. 17
Thank You for Your Attention