IPv6 Enabled Indoor Positioning System

Asfak Rahman KINO

Mentor: Ralph Droms

What is kio?

Accurate and low cost indoor positioning applications

kio is utilizing Ultra-wide band (UWB) radio communication technology and Time-of-Flight (ToF)

kio 's positioning error is below 30cm/1feet

kio system contains of anchors for ToF triangulation, nodes for moving object, network border router and optional wireless network monitors

It is possible to achieve node ranging rate over 10Hz

Communication between radios is based on IEEE802.15.4-2011-UWB MAC standard supporting both ranging and IPv6 compliant data exchange

IPv6 Enabled Indoor Positioning System

Architecture with IP Networking

BORDER ROUTER

kio-anchor

UDP/HTTP SERVER

kio-anchor

kio-anchor kio-anchorkio-anchor

kio-anchor

kio-tag

kio-tag

tag’s positiontag’s position

tag’s position

Trilateration

IPv6 Enabled Indoor Positioning System

WiFi Bluetooth 4.0 UWB - ELIKO

TechnologyTriangulation radio fi ngerprinting RSSI

Proximity RSSI / Triangulation

Triangulation (ToF)

Developed for positioning No Partial ly Yes

Accuracy 5m-20m 5m-20m 0.3m

Update rate 1Hz 1Hz 5-10Hz

Operating Range 20-40m 10m ~100m

Frequency 2.4 GHz 2.4 GHz 4.0 GHz

MAC IEEE 802.11 IEEE 802.15.1 IEEE 802.11.4-2011

Channel access method CSMA/CA CSMA/CA ALOHA

Setup time ~1day ~1day ~30min

Anchor Syncronization Yes Yes No

Additional wiring Yes Yes No

Power consumption High Medium - Low Medium - Low

IPv6 Enabled Indoor Positioning System

Why UWB?

Data rate Preamle length PayloadTransmission

timePackets per second 18% air - ulitisation

110 kbps 1024 symbols 12 bytes 2.07 ms 87850 kbps 256 symbols 12 bytes 380.3 µs 4736.8 kbps 64 symbols 12 bytes 103.3 µs 1742

For ALOHA, 97% of treansmissions are likely to succeed without collisions if total air utilisation is under 18%

Shorter frame TX time comparing to other radiosmore ranging per second

IPv6 Enabled Indoor Positioning System

Why UWB?

Mode: 850 kbps

Channel = 4

Bandwidth = 1331.2 MHz

Pulse repetition frequency = 64MHz

Preamble length = 256

Preamble length acquisition Chunk Size = 16

Preamble code = 17

PHR mode =127 octets

TX Power = -41 dBm/MHz @900MHz

Update rate = 12 Hz (complaint with 5% LDC regulation)

Mode: 110 kbps

Channel = 4

Bandwidth = 1331.2 MHz

Pulse repetition frequency = 64MHz

Preamble length = 1024

Preamble length acquisition chunk size = 32

Preamble code = 17

PHR mode = 127 octets

TX Power = -41 dBm/MHz @900MHz

Update rate = 12 Hz (complaint with 5% LDC regulation)

IPv6 Enabled Indoor Positioning System

Our UWB Radio

Software :

• Contiki-OS

• uIP 6LoWPAN stack

• RPL routing

• UDP

• HTTP

IP positioning web application

IP enables monitoring kios from anywhere

IPv6 Enabled Indoor Positioning System

Thank you