Upload
others
View
4
Download
0
Embed Size (px)
Citation preview
Prototype BANs for Health Prototype BANs for Health Monitoring and Visually ImpairedMonitoring and Visually ImpairedMonitoring and Visually Impaired Monitoring and Visually Impaired
PeoplePeople
Huan-Bang LIHuan-Bang LI
Dependable Wireless Laboratory
National Institute of Information and Communications Technology (NICT)
1
Medical Expenditure Per Year in Japan
9 0
10.0 35 %
7 0
8.0
9.0
25
30
YEN
ome
5 0
6.0
7.0
20
25
Percentage
billi
on, Y
e in
Inco
3 0
4.0
5.0 15
×10
00 b
cent
age
2.0
3.0
5
10 ×
Perc
0.0
1.0
0
Expenditure
1955 1965 1975 1985 1995 2007
2
Fiscal Year Source: MHLW
Expenditure Per Person Sorted in Ages
900
1000EN 700
800
900
0 14
1000
YE
500
600
700 0-1415-4445-64≧65X
1
300
400
500 ≧65≧70≧75
100
200
300
00 1 2 3 4 5 6 7 8 92000 2001 2002 2003 2004 2005 2006 2007
Fi l Y
3
Source: MHLWFiscal Year
Observation
T t l di l dit i b f d d Total medical expenditure increases year by year for decades. Expenditure per person per year doesn’t increase obviously in
past ten years. p y Elder generation spends more on medical than young generation
The percentage of aging population is increasing. The population needs medical cares is increasing.
4
Needs For Medical BAN
In 2002, the major chronic diseases accounted for 43% of the globalaccounted for 43% of the global burden of disease and will reach 60% by 2020.
people 60 years of age and older is 650 million in 2007. By 2050, the y ,"greying" population is predicted to reach 2 billion.
Prevention costs less than treatment does. Automatic vital signal collection and monitoring is pointAutomatic vital signal collection and monitoring is point.
Medical BAN
5
Definition of Body Area Network
Wirelessheadphone
ECG
Wireless headphone
ECG
Sensors
Game ControllerBody temperature Game Controller
6
Organization of 802.15IEEE802.15
onWPAN
Group in operation SC WNG
Standardscompleted WPANoperation SC-WNG
Wireless next
generation
completed
Task Groups
802.15.1WPAN
802.15.3WPAN
802.15.6WBAN
B d
802.15.9Key
t
Study Groups Interest
802.15.4WPAN
p
based onBluetooth
High rate PHY
Body area network
management protocol • PAC
• PTC•C-MBAN
Groups• SRU• THZ
Low rate PHY
802.15.4e15.4 MAC
Enhancement
802.15.4fRFID
802.15.4gSUN
802.15.4m4 TV
•C-MBAN802.15.4jMBAN
802.15.4kLECIM
B N b 20117
By November 2011
NICT’s Main Works on BAN
BAN St d di tiBAN Standardization
To have a successful commercialization an international To have a successful commercialization, an international standard is a key.
NICT has been making a lot of major contributions for the standardization of IEEE 802 15 6the standardization of IEEE 802.15.6.
R & D for BAN TechnologyR & D for BAN Technology A good technology is necessary to provide high quality
medical and healthcare services.NICT i d l i BAN i b th b d d NICT is developing BAN using both narrow band and UWB technologies.
8
Main Contributors at TG6CasuhCEA-LETICNU
Mitsubishi Electric Research Labs USACNU
CSEMCUNYETRI
Labs, USA NICTNICTANIST
AsiaETRIFrance TelecomFujitsu Lab Europe
NISTOlympus, USAPhilips, USA USA
Europe
Fujitsu ltd.GE Global ResearchGE Healthcare
Philips, EUSamsungTensorcom
IMECInha UniversityKETI
Texas InstrumentThalesToumaz TechnologiesKETI
Korpa LG ElectronicsMeiji Univesity
Toumaz TechnologiesYokohama National UniversityZarlink Semiconductor
9
Meiji Univesity … …
Frequency Band Candidates
USAA t li
EU
USA608-614902-928
1395-1400Japan
420-430 EU
Australia Australia433.05-434.79
520-668EU
433.05-434.79
China
Japan
Korea
1395 14001427-1429.5440-450
Korea
Japan915-928863.0-870.0
USA402 405 520440 1427 2400 3100 10600
USA
o ea
420 1395 2500
MICS
450 1400 1429.5
UWB (MHz)
430 668
WMTSISMMICS UWB (MHz)ISM
10
Structure of IEEE 802.15.6
Draft 06IEEE 802.15.6Specifications
f C &Multiple PHYs Unified MAC &Security
Narrow-band PHY UWB PHY HBC PHY
11
Three Channel Access Modes
Channel access mode
Time reference-based(superframestructure) Beacon Notes
I Yes Yes
Coordinator sends beacon in each superframe except for p pinactive superframes.
II Yes NoCoordinator establishes time reference butII Yes No time reference but doesn’t send beacon.
III No NoThere is not time
III No No reference.
12
Priority Definition
Priority level Traffic designation Data typePriority level Traffic designation Data type
7 Emergency or medical event report Data
6 High priority medical data ornetwork control Data or management
5 Medical data or network control Data or management5 Medical data or network control Data or management4 Voice Data3 Video Data2 Excellent effort Data1 Best effort Data0 Background Data
13
Main Specifications of NB-PHYFrequency bands (MHz)
Modulations Data rates (kbps)
Number of channel NotesPLCP
header PSDU
402-405 π/2-DBPSK
π/2-DBPSK,π/4-DQPSKπ/8-D8PSK
75.9/151.8/303.6/455.4 10 Majority of
countries
420-450 GMSK GMSK 75.9/151.8/187.5 12 Japan
863-870 π/2-π/2-DBPSK,π/4-DQPSK 101.2/202.4/ 14 EU863-870 DBPSKπ/4-DQPSKπ/8-D8PSK 404.8/607.1 14 EU
902 928 π/2-π/2-DBPSK,π/4 DQPSK 101.2/202.4/ 60
NorthAmerica902-928 DBPSK
π/4-DQPSKπ/8-D8PSK 404.8/607.1 60 America,
Australia
950 958 π/2-π/2-DBPSK,
/4 DQPSK 101.2/202.4/ 16 J950-958 π/DBPSK
π/4-DQPSKπ/8-D8PSK
0 . / 0 . /404.8/607.1 16 Japan
2360-2400 π/2- π/2-DBPSK, 121.4/242.9/ 39 USA
14
2360 2400 DBPSK π/4-DQPSK 485.7/971.4 39 USA
2400-2483.5 π/2-DBPSK
π/2-DBPSK,π/4-DQPSK
121.4/242.9/485.7/971.4 79 Worldwide
Main Specifications of UWB-PHY
Mode Modulation Data rate (Mbps) Waveform(Mbps)
IR-UWB (I) OOK 0.49 – 15.6 Chirp pulse, chaotic pulse,chaotic pulse, SRRC-like pulse, or others.IR-UWB (II) DBPSK/DQPSK 0.49 – 15.6
FM-UWBContinuous-phase2FSK (sub carrier)
combined with FM≦0.25 Gaussian (default)
FM-UWB is an optional modeHigh QoS mode Hybrid Type II ARQ
15
Definition Of UWB
GSM:30KHz
+35 dBm/MHz
W-CDMA:Power 5MHz
+15 dBm/MHz
UWB: 500MHz ~ several GHz, - 41.3dBm/MHz
Frequency
16
Frequency
The Advantages of Using UWBUWB is inherently low power consumption. That is
favorable for BAN device to operate on small battery for a long period.
Because of the extremely low emission powerBecause of the extremely low emission power density, the effect to human body and organ is very low.
Because of the extremely low emission power density as well as the high frequency, the y g q y,transmission distance is limited and good for co-existence.
UWB can provide high precision ranging, that is desired in some applications.
17
pp
World Wide UWB Regulations
Europe
China
DAA
DAAAfter2010
DAA DAA
Japan
Europe
DAA
LDC DAA
DAAAfter2013
DAA
Korea DAALDC 7.2 GHz 10.2 GHz
2013
DAAAfter2010
USA
Low band High band
3.1G 3.4 G 4.2G 4.8G 6.0G 7.25G 8.5G 9G 10.25G 10.6G
18
Prototype BAN Using UWB Highband
Inner viewWrist-watch Type
To monitor
Pedant Type
ハブ
Fixed TypeBelt-attached Type
19
Prototype BAN Using UWB Highband
Wrist watch type Pendant typeWrist watch type Pendant type
Belt-attached type Fixed type
20
yp ed type
Specifications of High Band UWB
Items SpecificationsItems Specifications
Frequency band 7.25 – 10.25 GHz
Average e.i.r.p. ≤ -41.3 dBm/MHz
Peak e i r p ≤ 0 dBm/50MHzPeak e.i.r.p. ≤ 0 dBm/50MHz
Average unwanted radiation ≤ -70 dBm/MHz
Peak unwanted radiation ≤ -64 dBm/MHz
Pulse rate ~ 50 MppsPulse rate 50 Mpps
Communication range ~ 3m
21
Peak Power of UWB Signal
-28.29(dBm/3MHz)@ 8.36GHz
Calculation of Peak Power:
22
Overview of A High-band UWB BAN
23
Monitor of Various DataECG
CarotidPulse
Weight
Devicestatus
24Attitude
Three-dimensional
Acceleration data
Alarm Functions
F ll d l25
Fall-down alarm
World Wide UWB Regulations
Chi DAA
Europe
China
DAALDC
DAAAfter2010
DAA DAA
Japan
p
DAA
LDC
DAAAfter2013
Korea DAALDC 7.2 GHz 10.2 GHz
DAAAfter2010
3 1G 3 4 G 4 2G 4 8G 6 0G 7 25G 8 5G 9G 10 25G 10 6G
USA
Low band High band
3.1G 3.4 G 4.2G 4.8G 6.0G 7.25G 8.5G 9G 10.25G 10.6G
26
BAN For People With Visual Disability
27
Usage Of The Developed BAN
28
Conclusion Remarks
Body area network (BAN) is considered as an important technology in supporting automaticimportant technology in supporting automatic medical monitoring and healthcare agilenceservices as well as consumer centric electronics.A new standard, IEEE 802.15.6 is expected to be published in 1Q of 2012, which defines the specifications of both PHY and MAC for BANspecifications of both PHY and MAC for BAN. UWB is a technology with low consumption power and low emission power level that are favorable inand low emission power level, that are favorable in implementing BAN.Two prototype BANs developed by NICT wereTwo prototype BANs developed by NICT were introduced. More works need to do in order to provide better solutions.
30
Introduction of NICT
The sole National Research Institute of ICTJAPAN
31
JAPAN
Major Research & Development
Applied ElectromagneticTechnologiesTechnologies
R&D
Network Technologies
R&DTargets Advanced ICT
Network Technologies
Universal Communications T h l i
32
Technologies