Zac Childers Anastasia Pavlovic Sam Romano Jeff Spangler Clayton Winner

canolaokahumpkaΗλεκτρονική - Συσκευές

2 Νοε 2013 (πριν από 3 χρόνια και 7 μήνες)

68 εμφανίσεις

Zac

Childers

Anastasia
Pavlovic

Sam Romano

Jeff Spangler

Clayton Winner



Originated from
conventional audio
monitoring systems



Increased in popularity
because of infant fatalities
(due to SIDS, etc.)




Has evolved into products
which are residentially
available, such as the
Angelcare

Monitor
manufactured by
Graco
.




To design a vital signs monitoring
system for infants for use in a residential
setting.




The system will be pertinent to new and
experienced parents, and available
within a reasonable and moderate price
range.



The system will monitor three vital signs:


Pulse


Respiration


Temperature




The monitoring system will be encased
in a waterproof garment which will be
worn by the infant.




The system will sound an alarm if any
abnormalities are detected during use.

Marketing
Requirement
Number

Marketing Requirement Description

1

The system will be designed for use in residential applications

2

The garment will be simple for the user to put on/take off child.

3

The garment will be comfortable enough to permit it to be worn
daily/nightly by the infant.

4

The system will gather accurate readings when in use.

5

False alarms should be minimized by correct thresholding and
decision
-
level fusion.

6

The garment will be safe with precautions taken to provide protective
layers for the hardware.

7


The system should operate using wireless technology.

8

A range of approximately 150 feet or more should be guaranteed for
monitor function.

9

The system should store data from approximately the past 48 hours of
use.

10

The system must incorporate both visual and auditory alarm systems
within the monitor unit.

11

The alarm must be signaled if pre
-
defined hazardous vital conditions
are reached.

12

The system should be constructed entirely at a reasonable childcare
expense for the user (under 500 dollars).

13

The system should allow for certain vital parameters to be changed to
suit specific cases.

Engineering
Requirement
Number

Engineering Requirement Specification

1


There will be no resources (electronic or otherwise) necessary for
the operation of the system which cannot be found in the average
household
environment.

2

The wiring of the system will be neat and compact. The user must
be able to quickly and safely remove the hardware by following a
short series of directions.

3

The garment will be padded but also pliable in order to provide
comfort as well as accurate sensor placement.

4

The sensors and component devices will be chosen according to
the range of each parameter being measured in order to gather
accurate readings when in use.

5

Software will be thorough when analyzing and thresholding data to
prevent false alarms.

6

Protective layers will be designed for the garment to prevent safety
hazards such as electric shock and strangulation.

7

Wireless communication technology will be chosen for an
appropriate range in a residential setting (
Appx
. 100 feet).

8

The memory in the system will be capable of storing approximately
the last 48 hours of recorded data.

9

The monitor component of the system will
encorporate

a series of
lights and a speaker to provide audio
-
visual alarm features.

10

The software will implement a system of thresholds as well as
decision
-
level fusion to ensure that an alarm is signaled when the
parameters indicate a problem.

11

The hardware, software and garment components of the system
will be constructed using cost
-
effective materials (goal total cost
under $500).

12

The software will allow the user to alter range information for each
of the parameters in order to perform more accurately in specific
situations.


The architecture of this system will
consist of two major components which
will interact wirelessly to transmit data
and commands from the child to the user.


I.
Garment

i.
Garment Functions and Descriptions

ii.
Garment Architecture

II.
Personal Computer

i.
Computer Functions and Descriptions

ii.
Computer Architecture

III.
Complete System Architecture


I.
i.
Garment Functions and Descriptions



Houses the sensor hardware and wireless
transmitter/
reciever

which are interfaced with a
microcontroller.


Probes from each of the sensors will collect and
input data to the system while the child is wearing
the garment.


Sensor data inputs produce very small, noisy, analog
signals.


Must be filtered, digitalized, and amplified to become a
readable signal, able to be interfaced with a microcontroller.


Low
-
Pass Filters


Analog to Digital Converters


Software loaded onto the microcontroller and
commands from the user tells the system when to
collect data and when to output data through the
wireless transmitter.




I
.
ii.
Garment Architecture

This diagram illustrates how the hardware/software of the garment interacts with
the child to collect the vital
-
sign information, convert the noisy analog signals to
clean digital signals, and send the converted signals to the user.

II.
i.
Personal Computer



The user’s personal computer will interface with a
wireless transmitter/receiver.


Receive vital
-
sign information


Send commands to the garment


Software will be loaded onto the computer.


Validate user credentials when logging in


Accept user input to set threshold values for alarms


Store recorded data onto hard drive


Accept and execute user commands


The system will utilize the computer display.


Vital
-
sign readings


View
-
stored data


Error messages


Alarm


Emergency contact Information







II.
ii.
Computer Architecture



III. Complete System Architecture

This diagram illustrates the complete system architecture; showing both the
garment and computer components of the system and how they will interact
with each other.


Why is testing important?



Verify engineering requirements


Minimize costs


Find the boundaries of the system


Ensure system operates smoothly at these
boundaries


Provide means of recovery when system does
not operate smoothly



Black Box


No knowledge of internal workings


Change inputs, monitor outputs



White Box


Target specific internal system nodes


Controllability, Observability



Acceptance Testing


Conditions under which customer accepts the system



Examines specific
use cases the user
will encounter
with the software.


Provides means of
handling errors.


Shines light on
areas in which
system does not
operate as
expected


Create an effective and efficient infant
monitoring system



Help combat premature death in infants



Minimize production costs


Each member is given specific tasks
specified toward their skills



Each task is intended to be completed
within a specified timeline



Multiple tasks will be performed at the
same time to ensure project completion



At the conclusion of the project, it will be
presented and demonstrated

ID

Activity

Description

Members

Resources

1

Circuit Wiring

Putting together the required
circuits

JS, ZC, AP

Sensors, Wire, Circuitry
tools, Microcontroller,
A/D converter

2

Integrating
Microcontroller

Implementing microcontroller
for use with the circuit

SR

Microcontroller
(BASIC Stamp 2ps),
wires

3

Write Functions

Coding functions outlined in
the proposal

CW

MATLAB, C, BASIC

4

Enable Wireless
Function Hardware

Implementing wireless
transmitter

JS, ZC, AP, SR

Wireless transmitters
and receivers

5

Develop Other Software
Needs

Completing other software
functionalities based on
proposal

CW

MATLAB, C, BASIC

6

Set Up Network

Setting up network for
wireless transmission

JS, ZC, AP, SR

Wireless transmitters
and receivers

7

Interface Hardware and
Software

Using functions to make
hardware and software as one
unit.

JS, ZC, AP, SR,
CW

All circuitry,
Microcontroller,
wireless transmitter and
receiver, computer

8

Construct Garment

Build garment in order to
contain hardware design

AP, JS

Waterproof material,
waterproof thread

9

Enable External Mass
Storage

Set up unit for backing up
data

JS, ZC

Extended hard drive

10

User Manual

Create a user manual for the
finished project

JS, ZC, AP, SR,
CW

N/A

11

Documentation

Documenting all steps of the
project

JS, ZC, AP, SR,
CW

N/A

12

Design Fair

Presentation of completed
project

JS, ZC, AP, SR,
CW

Finished project and
documentation

Task #

Task Title

Division

W 1

W 2

W 3

W 4

W 5

W 6

W 7

W 8

W 9

W 10

W 11

W 12

W 13

W 14

W 15





AP

ZC

SR

JS

CW































1

Circuit Wiring

20

20



20



20

20

20

























2

Int egrating
Microcontroller





20







10

10

























3

Writ e Functions





10



30

20

10

10

























4

Enable Wireless
Funct ion
Hardware

10

15

10

10









10

15

10

10

















5

Develop Other
Soft ware Needs









20







10

10





















6

Set Up Net work

2

2

2

2













4

4

















7

Int erface
Hardware and
Soft ware

20

20

20

20

20















25

25

25

25









8

Const ruct
Garment

10





5











10

5



















9

Enable Ext ernal
Mass St orage



3



3





















6











10

User Guide

7

7

7

7

7























35







11

Documentation

9

9

9

9

5























10

20

11



12

Design Fair

4

4

4

4

4





























20



INDIVIDUAL
TOTALS

82

80

82

80

86

40

40

40

20

35

19

14

25

25

31

25

45

20

11

20



















































































Tot al Hours:

410



The table below shows the required hardware needed to build this
system, the part number, the price, and also the source from where we
will be purchasing these items.



The Infant Vitals Monitor will alarm
parents/users of the system if a child’s vital
signs reach potentially hazardous
conditions.




The system will use the accurate mid
-
range
priced sensors, and will operate using
wireless technology.




The IVM prototype will be constructed for
under $1000.