6. INFANT POSTURE
Detect the position of infant during sleep
LSM330DLC inertial sensor is used without
gyroscope
Set threshold value to minimize the small
fluctuations in accelerometer and it allows to
control the tilt angle posture
Position gets updated when there is a valid
change
3D-accelarator is to recognize the force of gravity
‘A’-Infant is lying on his back
‘B,D’-Infant is lying on his side
‘C’-Infant is lying on his stomach
8. BREATHIN RATE SENSOR
The same 3D-accelarometer is used here with a
sampling rate of 10Hz.
Measures 60 breaths per minute
Fig4:Smoothed and unsmoothed data acquired from the 3D-accelarometer
9. STRATERGY TO MEASURE
BREATHING RATE
Implementation of the smoothing algorithm
results in huge energy consumption
State machine with three possible states are used
to minimize the power consumption
Middle state
High state
Low state
10. RESULT OF BREATHING RATE
SENSOR
Fig 5:Axis’s values while infant is lying on his
back
Fig 5:Axis’s values while infant is lying on his
back
11. Infrared thermopile sensor-TMP007
Measure without any contact with the skin
Provides digital interface(I2C/SMBus)
Thermally isolated from PCB
BODY TEMPERATURE
Temperature Sensor
12. GATEWAY
Beagle Bone Black, with a Debian Wheezy image is
installed
Network service was provided by lighted server with
PHP5.1
Serial port communication protocol was used for
communication
TL-WN725N is used to connect gateway to router
Fig 7:Gateway :shield placement on the Beagle Bone
Board
13. H Medical Web Interface
Helps the user to retrieve the information from
SWS
Developed in PHP,SQL,Javascript,HTML5,CSS3
Worked on any device independent of OS
Helps to
Generate charts
Time-lapse animation
Export data to different type of files
Allows to add new users
Monitor multiple infants