ADI关于可穿戴设备中 体征信号监测的解决方案

ADI关于可穿戴设备中 体征信号监测的解决方案
The World Leader in High Performance Signal Processing Solutions
ADI关于可穿戴设备中
体征信号监测的解决方案
体征信号监测
体征信号
ADI Vital Signs Monitoring
Sensor
T h l
Technology
Analog Signal
Processing
Digital Signal Processing/
C t lP
Control
Processing
i
Wireless
C
Comms
Processing
Wireless
Power
Sensors
AFE
Power
ADI Technology
Platforms
ADI Algorithms
Analog Domain
Digital Domain
Analog Devices Confidential Information
Heart Rate
VSM Technology
gy Convergence
g
Out of Hospital
Low
Active
Power
L A
ti P
High Performance
Body Worn
Wireless
SP02
Heart Rate
Activity
ECG
Fall
BMI
Respiration
In--Hospital/Assisted Living
In
Low Active Power
High
g Performance
Emerging :
4
- Body Worn
- Wireless
传感器技术
光电
生理电势
阻抗
AFE 14
6
AGND_RX
16M_XTAL2
CIN 0
Clock Control
RTC_XTAL2
348kB
FLASH
16kB
EEPROM
DGND2
DVDD
- SINE WAVE
- TRAPEZOID
- DAC DC
12-BIT
DAC
OFFSET
CONTROL
CIN 1
CIN 2
CIN 3
CIN 4
CIN 5
LOW POWER
CONTROL
SERIAL PORT H
GPIO /
SERIAL PORT
ENABLE
GPIO1 / SPI0_EN
GPIO2 / SPI1_EN
GPIO3
GPIO4
TIMER
DIGITAL
FILTERING
SEG32 / SPI0_MOSI
SEG31 / SPI0_MISO
SEG30 / SPI0_SCLK
SERIAL
PORT 1
SERIAL
PORT 0
UART
温度
ADT7320 ±0.25°C Accurate Digital Temp Sensors
±0 2°C A
±0.2°C
Accuracy ffrom -10°C
10°C tto 85°C @ 3V
• Applications:
• Body Temperature Sensing
3V
USB
Reg
USB INT
TERFACE
SEG29 / SPI1_MOSI
SEG28 / SPI1_MISO
SEG27 / SPI1_SCLK
SEG [24:26]
SEG23 / SDA
SEG22 / SCL
SEG21 / RX
COM7 / SEG20 / TX
COM6 / SEG19
SEG [15:16] / EXT_DIS_ [nCS:nRD]
COM5 / SEG18 / EXT_DIS_nWR
COM4 / SEG17 / EXT_DIS_nRD
IIndustry’s
d t ’ lowest
l
t power accelerometer
l
t
• Applications:
• Pedometer, Fall Detection, Motion
detection….
SER
RIAL PORT 0
SER
RIAL PORT 1
I2
2C CLOCK
UART
Applications:
• HRM, ECG Monitor
ADXL362 Micro Power 3 Axis Accelerometer
I2C
CLOCK
TA_OUT
TB_OUT
TC_OUT
BEEPER / BSCK
BEEPER / LRCLK
SDATAO
BEEPER /
I2S
High Accuracy Configurable Analog Front
End with Peripheral Rich micro-controller
subsystem
• Applications:
• Impedance Measurement
• SP02/HRM/NIBP subsystem
Ambient Light rejection
• Applications:
• SP02; Heart Rate;
运动
SEG [1:14] / EXT_DIS_D [4:17]
•
COM [ 0:3] / EXT_DIS_D [0:3]
Low
Cost/Low
Power
Heart
L
C t/L
P
H t Monitor
M it AFE
LCD_FLY_CAP_ [T:B]
AD8232 HRM AFE
VLCD [1:4]
Diagnostic quality ECG AFE
ADuCM350 AFE+Cortex M3
ADPD1xx : Optical AFE and Module
TDO
TDI
SWDIOTMS
SWCLKTCK
TRACECLK
TRACEDATA [0:3]
PROXIMITY
DETECTION
LCD [35:0]
ADAS1000
RESETIN
CONVERSION
CONTROL
SRAM
LCD_GND
POR
SPIH_SCLK
SPIH_MISO
SPIH_MOSI
SPIH_EN
ARM SWD
INTERFACE
14
EXCITATION
128 SEGMENT
8/4 - COMMON
LCD DRIVER
VBACK
NVIC
CAP TOUCH
14-BIT
CDC
RTC
DEBUG
JTAG
2 GENERAL
PURPOSE TIMERS
WAKE-UP AND
WATCHDOG
TIMERS
32kB
RAM
SWITCHING MATRIX
CAPACITIVE SENSOR PCB
RTC_XTAL1
16M_XTAL1
DGND1
Temp Sense
ARM CORTEX M3 MCU
Crystal
Osc
AGND_TX
16-BIT
ADC
3
ADuCM350
Crystal
Osc
VREF
AFE 13
AVDD_TX
- INSTUMENTATION AMP
- EXCITATION BUFFER
- I/V CONVERTER
- SWITCH MATRIX
AVDD_RX
AFE
AGND_REF
VCCM_DIG
AIN[A:D]
SUPPLIES
4
AFE 10
AFE 11
AFE 12
VCCM_ANA
AFE 1
AFE 2
AFE 3
AFE 6
AFE 7
AFE 5
AFE 4
AFE 8
4 AUX 16-Bit ADC
Inputs
AFE 9
USB VUSB DP DM
GND
TO USB
VBUS
可穿戴体征信号技术
ADPD142RG
ADXL362
•
•
•
•
•
•
HRM
SpO2
Activity/Steps
Sleep
Fall Detection
Bio
impedance
Bio-impedance
- Stress
- BMI
• ECG
AD8232
HP DRIVE
ADuCM350
+
–
The World Leader in High Performance Signal Processing Solutions
生理电势测量
(ECG&HRM)
Low-Power
Low
Power ECG ADAS1000 –IN
IN-AMP
AMP ARCHITECTURE
FEATURES & BENEFITS
 Biopotential
p
in;; Digitized
g
out
 6 Electrode (5acq + driven lead, RL)


Parallel Chips for 10 Electrode or more
AC Leads Off Detection
2kHz

sine wave
DC Leads Off Detection
Programmable





pull-up 10nA to 70nA
Pace Pulse Detection
Respiration Measurement
Lead or Electrode Data Available
RLD can be redirected
Scalable Noise vs. Power Control
1
lead from 11mW, 3 leads from 14mW
High Performance Mode: from 28mW (all electrodes)
Low
L
Power
P
Mode:
M d from
f
21mW
21 W (all
( ll electrodes)
l t d )
Power Down Modes
8
CM I/P Range
AVDD Rail
DVDD Rail
Electrodes
Temp Range
Package
+/-1V
+3V to +5.5V
1.65V to 1.95V
5 acq + RLD
-40°C to 85°C
56 LFCSP (9x9)
64 LQFP (10x10)
ADAS1000 ECG System Solution
ECG
-5 Electrode ECG saleable up to many electrodes
- AC and DC Leads off
- Selectable RLD
- Flexible input stage for customer preferred measurement
configurations
RESPIRATION
Thoracic Impedance/Respiration Measurement
- 2 and 4 lead options
- Measurement resolution in region of 0.2ohms to 10-20mohms
On chip Pacemaker Pulse Detection Algorithm
- Supported fast data channel for off chip pace detection
Patient Monitor : system
solution - Integration
y
g
Power : ADP320;ADP22x;ADP503x;ADP504x
6 Electrodes
(5 + RLD)
ADF7023
ADAS1000
LI
Wireless
Modules
LA
RA
V1
LIII
ESIS Filter
LII
ADSP-BF527
V2
RL
ADuM440x
Isolation
Ethernet
LL
Ext Mem
DSP functions:
• Display
• Communications
•High Pass Filter
• 50/60Hz Notch
•Baseline Wander
• De-Noising
• ECG Analysis
10
ADuM4160
USB Isolation
AD8232 Functionality
Multi-Pole Integrator, Selectable
HPF Cutoff (0.5 to 10Hz)
< 1nA Input Bias
Current
On board REF
Operates on 2.0 to 3.5V
Buffer
(Direct from Batt., No Regulator)
Fast Recovery
Circuit
Shutdown
Rail to Rail
Input
AC and DC Leads
Off Detect
Integrated RLD
Resistor programmable gain
and Multi-Pole Active Filter
AD8232 – Integrated Two Electrode HRM, ECG AFE
Features






Performance








12
Two-Pole High Pass Filter
 Electrode
El t d DC offset
ff t removall
 Selectable Cutoff Frequency (0.5 to 10Hz)
 Low Frequency Motion Attenuation
Integrated
g
Fast Recovery
y Circuit ((FR))
AC and DC Leads Off Detect
Integrated Right Leg Drive (RLD)
Onboard Reference Buffer
Shutdown
+
–

HP DRIVE

Single
g Supply
pp y Operation:
p
2.0V to 3.5V
Low Supply Current: 175µA Typ
CMRR > 80dB @ G=100; f=60Hz
Input Noise: 20µVp-p Max (0.5 to 40Hz BW)
Input Bias Current: < 1nA
Wide Input Range: GND + 0.2V to Vs
Package: 20L 4mmx4mm LFCSP
Temp Range: 0Ԩ to 70Ԩ

Applications



Fitness and Activity Heart Rate Monitoring
Portable, Remote and Home ECG systems
Cell Phones,
Phones Portable Computing and
Gaming devices
The World Leader in High Performance Signal Processing Solutions
光电法测量
心率&血氧含量
Pulse Oximetry Overview
腕部反射式心率测量
环境光
光电二极管面积
运动去除
工业设计
算法
功耗
光谱
ADPD142RG/ADPD-142RI
SP02/HRM 低功耗模块

features:




16
2.8mm by 5mm fully integrated optical
module
ADPD102 Optical AFE – best in class
ambient light rejection; dual LED drive;
2 x LED (Red/Green – ADPD142RG; Red/IR
– ADPD142RI)
ADPD142-RG
(ADPD142-RI available)
The World Leader in High Performance Signal Processing Solutions
运动
Motion sensing use for accidental fall down
• Aging population less young people to
watch elderly
• Medical insurance push to prevent
accident
• Faster response in case of accident with
Network connection
• ADI already provided sensor patch and
solution for consumer p
product
 ADI
Make a Difference:
ADI Algorithm development note fall algorithm
 Ultra low power Solution
 Cortex M3, low power Accelerometer…
 Coin cell non rechargeable battery
 Flexibility (ARM based code),Reliable, shock resistant
 Miniaturization: Size,
Size Many package technology allow patch mount

18
Easier to save life by correct support
• 90% of CPR today are done improperly:
• Panic,
P i llack
k off practice
ti
• Guide user to do CPR the right way and
monitor CPR
• WW announcementt off cooperation
ti with
ith
Zoll leader in emergency equipment like
AED
• Not to late to join to save a life
 ADI
Make a Difference:
Algorithm available through exclusive partnership with Zoll
 Accelerometer dynamic range
 accuracy compatible with shock during CPR
 Low power capability
 Coin cell non rechargeable capability

19
Analog Devices Confidential Information
Pedometer use for Calories counting
• WW increase of obesity
• Social network of sport activity in fashion
• Medical insurance push to preventive
healthy life Style
• ADI already provided solution for Handset
and consumer product
Walking
 ADI
Make a Difference:
ADI Algorithm development expertise
 AXL Performance: Differentiate running, walking
 Ultra low power Solution
 Cortex M3, low power Accelerometer…
 Coin cell non rechargeable battery
 Flexibility (ARM based code),Reliable,
code) Reliable shock resistant
 Miniaturization: Size, Many package technology

20
Running
ADXL362 Micropower Three
Three-Axis
Axis, ±2g/4g/8g Digital XL
Industry’s Lowest Power MEMS Accelerometer

Ultra-low power




M
Many
b
built-in
ilt i features
f t
for
f system-level
t
l
l power
savings, including:




300 nA motion-activated Wake-up Mode
3.0 μA across full ODR up to 400Hz @ 12-bit resolution
10nA Standby current
Adjustable-threshold sleep/wake modes for motion
activation
Multiple
p sample
p activity
y detection to eliminate “false
positive” motion
Deep embedded FIFO minimizes host processor load
Continuous sampling up to 400Hz ODR  no
undersampling or aliasing!






21
12-bit
12
bit resolution:
l ti
1 mg/LSB
/LSB @ ±2g
±2 range
Low noise down to 175 μg/√Hz
Wide supply and I/O voltage ranges: 1.6 V to 3.6 V
Acceleration sample synchronization via external
trigger
Small and thin 3 mm × 3.25 mm × 1.06 mm package
ADXL362 Applications

Fitness Monitoring




Pedometer is widely used in home
healthcare products, it can work with
SpO2, blood pressure, heart rate,
respiration rate, etc. to monitor the user
fitness everyday
everyday, even the sleep quality
quality.
As long as the product is smaller and the
requirement on the monitoring time is
g , the built in battery
y has to be
longer,
smaller and the system current has to be
lower.
ADXL362 has the lowest power
consumption on the market and its built in
deep FIFO can help to realize system low
power, make it very suitable for such
applications.
The picture shows the 24/7 activity
monitor product from Withings
(http://www.withings.com/en/pulse) by
using ADXL362
ADXL362.
22
ADXL362 Applications

User Interface


There are multiply operation modes for consumer products UI, from button to touch
and motion recognition. The picture below shows the watch which used ADXL362
to do motion recognition. When user receive the call or email, the watch will vibrate
to remind the user, the vibration can be stopped by tapping the watch.
Th products
The
d t lik
like watch
t hh
has ultra
lt hi
high
h requirement
i
t on currentt consumption,
ti
th
the
lowest power consumption accelerometer ADXL362 is the best for this.
Vibration
Bluetooth
Call or email
23
Vibration stop
Double tap to confirm
The ADXL362 as an Autonomous Motion
Switch
Current Flows
Full Operational
Current Flows
24
PRESENCE OF MOTION
System Power is CONNECTED
System
y
Consumes Normal Current
Accelerometer Consumes <2µA
The ADXL362 as an Autonomous Motion
Switch
Current Flows
No Current
Zero
25
ABSENCE OF MOTION
System Power is DISCONNECTED
y
Consumes 0 Power
System
Accelerometer Consumes <2µA
Sensor Fusion for Wearable:
ADuCM350 Meter-on-a-Chip (MoC)
S
Sensor Fu
usion
• Skin Impedance
• Bio potential ECG/HRM
AD8232
• Blood pressure
• Glucose
Human Interface
• Capacitive
C
iti Touch
T hTM
• Voice Commands Mic
Indicator
Optical
• B&W or Color Display
• Buzzer & Speaker SSM2519
• HRM/SPO2
ADPD142 & ADPD102
Connectivity
• BLE
• NFC
• USB
Movement
• Steps count ADXL362
• Respiration
esp at o ADXL363
363
• Fall detect ADXL377
P
Power
Management
M
t
• USB recharge ADP5065
• Wireless recharge (ADNFC)
• Auto on/off ADXL362 & Cap TouchTM
ADI Confidential Information
Userr Interface
e & Conne
ectivity or main prrocessor
Electrical
ADuCM350 SW Dev Kit
•Motion removal,
steps count, BLE.. algorithms
ADuCM350
DIGITAL PART
ANALOG PART
6 Button
Cap Touch
USB
BEEPER
I2S
LCD
AFE
Controller
CORTEX
M3
MCU
16MHz
27
ADuCM350

Core Features
 Coin cell battery operation
 Cortex M3 CPU
 16-bit ADC, 12-bit DAC
 On Chip Sequencer
 USB IInterface
t f
 LCD Control
 On Chip TIA + PGA

Receive Channel
 16 bit ADC
 TIA
 External resistor in TIA allows
current range to be set
externally
 Ability
Abilit to
t sink
i k /source
/
2.5mA
25 A

with 16 bit accurately.
TIA amplifier has built in short
circuit protection to prevent
damage. Short circuit limit is
8mA



Transmit Channel
 12-bit DAC
 Integrated filters and output
buffers
Excitation Waveforms
 Configurable
C fi
bl waveform
f
generator
t
Sequencer
 Off-loads work from the processor
 Bypass option SW controlled
 Cycle accurate
The World Leader in High Performance Signal Processing Solutions
温度
Digital Temperature Sensor
Performance Breakthrough
Brings Advantages of Digital Temp
Sensing to a Broader Market
 Higher Performance

±0.2°C over range of -10°C to 85°C

±0.25°C over range of -20°C to 105°C

±0.5°C over range of -40°C to 125°C

High stability, repeatability &
reliability
y
 Lower
System Power and Cost

No additional components required

No calibration required

No software computation
(linearization) overhead

Multiple low power modes
 Easier
Implementation
Digital interface (SPI/I2C)
 No complex calibration or
linearization
 No additional signal processing
 No lead wire resistance or self
heating concerns

ADT7320/ADT7420
±0.25°C Accurate Digital Temp Sensors
KEY BENEFITS


Leading performance

±0.2°C Accuracy from -10°C to 85°C @ 3V

±0.25°C
0 25°C A
Accuracy ffrom -20°C
20°C tto 105°C

±0.5°C Accuracy from -40°C to 125°C

16 bit resolution: ±0.0078°C

Excellent long term stability: ±0.0073°C

N.I.S.T. traceable
Easy Implementation


High Reliability

31
Plug ‘n’ play high performance measurement
No resistance, noise or batch variation issues
Vrange
Active Current
Shutdown Current
Interface
Package
Trange
2 7V tto 5
2.7V
5.5V
5V
210 A (t
210uA
(typ)
p)
2 A (t
2uA
(typ))
SPI/I2C
4 4 LFCSP
4x4
-40°C
40°C tto 150°C
0.25
0
25°C
C Accuracy Over 125
125°C
C Temp Range
Extremely Tight Distribution
ADT7X20 Temperature Profile
2X Better Accuracy
than the Nearest Competition
1.25
1.00
Temperatture Error (ºC)
0.75
Competition Max Accuracy Limits*
0.50
ADI Max Accuracy Limits
0.25
0.00
-0.25
-0.50
-0
0.75
75
-1.00
-1.25
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
Temperature (ºC)
*Only includes competitors with > 2 sigma limits
90
100
110
120
130
The World Leader in High Performance Signal Processing Solutions
ADI在可穿戴设备中的
电源管理方案
ADI Existing power chain in wearable system
34
The World Leader in High Performance Signal Processing Solutions
Th k Y
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