Automatic Cradle System with Measurement of Baby’s Vital Biological Parameters

IDL - International Digital Library Of
Technology & Research
Volume 1, Issue 5, May 2017 Available at: www.dbpublications.org
International e-Journal For Technology And Research-2017
IDL - International Digital Library 1 | P a g e Copyright@IDL-2017
Automatic Cradle System with Measurement of
Baby’s Vital Biological Parameters
Vijayamahantesh Hiremath1
, Dr. P Venkataratnam2
VTU Extension Centre, UTL Technologies Ltd Bengaluru
ABSTRACT
There is a need to develop a new low cost
indigenous electronic cradle because the
existing cradles are imported and costly.
This paper presents the design and
implementation of a new indigenous low
cost E-Baby Cradle that swings
automatically when baby cries, for this it
has a cry analysing system which detects
the baby cry voice and accordingly the
cradle swings till the baby stops crying.
The speed of the cradle can be controlled
as per the user need. The system has
inbuilt alarm that indicates the condition –
when baby does not stop crying with in a
stipulated time, which intimated that baby
needs attention. This system helps parents
and nurses to take care of babies without
physical attention by already recorded
voice input to FN-M16P model and at this
same time Cradle also moves according to
the user need.
1. INTRODUCTION
To describe and validate a non-contacting
sensor that used reflected ultrasound to
separately monitor respiratory, on-
respiratory, and caretaker movements of
infants. Anin-phase and quadrature (I &
Q) detection scheme provided adequate
bandwidth, in conjunction with post
detection filtering, to separate the three
types of movement.
 The respiratory output was validated
by comparing it to the electrical
activity of the diaphragm(Edi) obtained
from an infant ventilator.
 The non-respiratory movement output
was compared to movement detected
by miniature accelerometers attached
to the wrists, ankles, and heads of
infant.
 Caretaker movement was compared to
Audio observations annotated in the
recordings.
The respiratory rate determined by the
sensor was equivalent to that from the Edi
signal. The sensor could detect the
increase and decrease movement of chest
of infant while breathing. Non-respiratory
movement was identified with an
agreement of 0.9with the accelerometers.
It potentially interfered with the
respiratory output an average of
4.7+/−4.5% and 14.9+/15% of the time in
infant not requiring or on ventilator
support, respectively. Caretaker
movements were identified with 98%
sensitivity and specificity. The sensor
outputs were independent of body
coverings or position.

This single, non-contacting sensor can
independently quantify these three types of
movement.
Fig1: diagram for infant and sensor.
2. BLOCK DIAGRAM &
DESCRIPTION
Parents in the present world are busy in their
professional life, so they do not get sufficient
time to take care of their babies. It may be
expensive for the household to afford a
nanny. Today’s woman has to manage home
along with their office work simultaneously.
After long working hours, they have to take
care of the home along with the baby. They
may not get enough time to swing the cradle
manually and sooth the baby.
Also Hospitals have neonatal and
maternity units. Nurses in these units have
to take care of many babies.
Working:The system is microcontroller
based that is being designed is aimed to
help parents and nurses in infants care.
Features being:
1. Cradle starts swinging
automatically when baby cry and
swings till the baby stops crying
and at the same time recorded
voice ( jogula or laalihaadu or
voice of mother to console the
infant) will play through the FN-
M16P model. A sound detector is
interfaced to the controller which
senses sound when baby cries and
activates the controller with its
digital output.
2. Selection of different voices from
Free Android app if baby cries for
more than a stipulated time
indicating that baby needs
attention.
3. Single motor are interfaced via a
DC motor driver to the controller.
That motor is to swing the cradle
when baby cries.
4. Bluetooth interface Receives alert
from android app based handsets to
change the voice of parents/nurses.
An ALCD is interfaced to the
controller which keeps displaying
the status as messages.
5. Ultrasonic Sensor – interfaced to a
microcontroller – as Respiratory
Sensor the respiratory rate
determined by the sensor was

equivalent to that from the Edi
signal. The sensor could detect the
increase and decrease movement of
chest of infant while breathing.
6. Non-respiratory movement was
identified with the accelerometers.
Software:R5F102AA microcontrollers
from Renesas is used to implement this
project. Microcontroller acts as the
heart of this project, which controls the
whole system. It contains of Flash
ROM 16KB, RAM 2KB and Data
Flash 2KB, and it has High speed on
chip oscillator, Self-reprogrammable
under software control, 23 GPIO’s, 3
UART’s, Simplified I2C, 10 bit
resolution ADC, 28 Interrupt Sources,
ISP programming support etc.
3. SOFTWARES & HARDWARE
USED.
Software:
1. Embedded C
2. Cube Suits++ Compiler
3. Renesas Flash Programmer V2
R5F100LEA microcontroller from
Renesas RL78 series which is a 16-bit
microcontroller is used to implement this
project. Microcontroller acts as the heart of
this project, which controls the whole
system. It contains of Flash ROM 64KB,
RAM 4KB and Data Flash 4KB, and it has
High speed on-chip oscillator, Self-
reprogrammable under software control,
58 GPIO’s, 3 UART’s, Simplified I2C, 10
bit resolution ADC, 28 Interrupt Sources,
ISP programming support etc.
Hardware:
1. Mobile
2. Bluetooth/Wi-Fi
3. RL78 series 16-bit Microcontroller
4. LM95 – Temperature sensor
5. Sound sensor
6. L293 DC Motor driver
7. DC Motors
8. OrCAD tools for Schematic and
PCB
4. LITERATURE SURVEY
The most common methods for measuring
respiratory activity involve contacting
systems, such as impedance
plethysmography or an attachment of a
sensor of flow to the airway. Non-
contacting methods are useful when no
contact is desired or possible. These
include the use of pressure mattresses,
radar, infrared imaging of warm expired
gas, ultrasound methods of detecting
airflow at the face, or reflected ultrasound
from the underside of a mattress.
Non-contacting sensors are
especially useful for sleep apnea detection,
and have been used in infants for
synchronization of a mechanical ventilator
with spontaneous breathing efforts even
when a patient has an artificial airway or
must wear nasal prongs with largeleaks in
the airway-infant interface.
Description of the Sensor, Circuitry,
and Algorithm
The ultrasonic sensor head consisted of a
transmitter and a receiver placed 15–50 cm
above the infant, approximatelycentred
over the torso of the infant, mounted either
on the ceiling of the isolate with silicone
suction cupsor on a bracket attached to an

open crib or radiant warmer bed. The
sensor could be moved several centimetres
toward the head or the toes without a
change in function. The infant was nursed
in the usual coverings or bundled in
blankets. The sensor head was attached to
an electronics unit by shielded cables, and
data were acquired with a laptop computer.
Respiratory effort: We compared the
sensor respiratory output, to the electrical
activity of the diaphragm, or Edi, as
determined by a commercially available
mechanical ventilator(Servo-i, Maquet
Corporation, Solna, Sweden) as an
independent reference for respiratory
effort.
Non-respiratory Movement:
We compared the sensor movement output
of the algorithm to non-respiratory
movements as detected by an independent
system of miniature accelerometers.
The summed signal from each of
the five accelerometers attached to the four
limbs and head were then summed, so that
a single signal represented any non-
respiratory movement in any of the
accelerometers.
TOOLS:
 Embedded C
• The basic code development done
in Embedded C programming
environment. Components used in
embedded system typically uses
smaller, less power consuming
components. Embedded systems
are more tied to the hardware.
 Cube suit++ IDE
• Integrated Development
Environment (IDE) CubeSuite
offers the ultimate in simplicity,
usability, and security for the
repetitive editing, building and
debugging of codes. Easy to Install
and operate. CubeSuite offers a
highly user-friendly development
environment featuring significantly
shorter build times.
 Renesas Flash Programmer V
• Helps to download hex code to
microcontroller R5F100LE
Movement of the Caretaker:
Today’s woman has to manage
home along with their office work
simultaneously. After long working hours,
they have to take care of the home along
with the baby. They may not get enough
time to swing the cradle manually and
sooth the baby when the infant start crying
if mother is working in kitchen, the mother
can console that infant by giving input
signal from android app by voice input or
selection procedure of different recorded
voices. Also Hospitals have neonatal and
maternity units. Nurses in these units have
to take care of many babies.
5. METHODOLOGY:

Architectural schematic
• Sound Detector interface to MCU
• Single Motor interface via DC
Motor driver to MCU
• GSM Interface Rx alert from
Android app Mobile to MCU
• LCD interface with MCU
• Ultrasonic Sensor interface with
MCU
• Accelerometer sensor interface
with MCU
• Designed and developed overall
schematic diagram as per
specifications
6. ADVANTAGES

 It saves time.
 Manual operation has been reduced
to major extent.
 Less man power required.
 Efficient distribution system.
 Easy to use.
 Efficient and reliable.
 My main motive is to eliminate the
paper based records using smart
phone.
 24/7 security and peace of mind for
mothers and staff.
 Prevents kidnap in hospitals.
 All time protection even if the baby
moves around without being
noticed by elders, since if it goes
near any electric items the sensors
help in sending alarms.
CONCLUSION
The project is designed using structured
modelling and is able to provide the
desired results. It can be successfully
implemented as a Real Time system with
certain modifications. Science is
discovering or creating major
breakthrough in various fields, and hence
technology keeps changing from time to
time. Going further, most of the units can
be fabricated on a single along with
microcontroller thus making the system
compact thereby making the existing
system more effective. To make the
system applicable for real time purposes
components with greater range needs to be
implemented. We have described and
validated a single, ultrasonic sensor for
respiratory, accelerometer sensor for non-
respiratory, and caretaker movement in
infants in an intensive care setting by using
FN-M16P. The cry detector sensor could
detect crying of the infant. The non-
respiratory movement output had an
agreement of 0.9 with an independent
measure of movement by accelerometers.
The detection of caretaker movement had a
sensitivity and specificity of 0.98
compared to visual annotation of caretaker
movements during our recordings. The
separate outputs for the non-respiratory
and caretaker movements may be useful
for a number ofother applications for the
clinical assessment of infants and their
care.
The sensor described was used in
infants for this validation. With
modifications in the design of the sensor
head and postdetectionfiltering, it could be
used in older children and adults.
The sensor, as part of a synchronizer for
adult and paediatric ventilators, could
promote the present trend to use non-
invasive ventilation as an alternative to
invasive ventilation.
 Cube Suits++ Compiler

 Renesas Flash Programmer V2
REFERENCES
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[4] Gim Wong, “Automatic baby crib
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[5] Chau-Kai-Hsieh; Chiung Lin; Taiwan;
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