Client:
Iowa State (Thorland-Oster, Vicky)
Advisors:
Dr. Jacobson, Douglas W
Team:
Moran, Alex S
Kang, June K
You, Seung H


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

All equipment shall be capable of operating without
degradation between 10⁰C and 52⁰C
All equipment shall be capable of operating without
degradation over a humidity range of 0-60% (standard
indoor humidity)
All equipment shall be capable of operating without
degradation by means of a standard wall outlet.
All equipment that does not require 120VAC shall be
capable of operating with limited risk (cost) involved.
All equipment shall be encased in such a way as to
minimize risk of breaking by human interaction.
All equipment shall be protected and wired so that
no electric shock risk is present.


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


The Sonar Array shall be capable of detecting objects from four
different stationary points.
The Sonar Array shall be capable of detecting objects between 3
and 21 feet from the sensor.
The Sonar sensors shall be capable of being interpreted by an
analog to digital converter.
The heat sensor shall be capable of operating between 0 and 100
degrees Fahrenheit.
The Heat sensor shall be capable of being interpreted by an
analog to digital converter.
Recognition distance shall be operational between 0 and 2
meters.
The RFID shall be capable of recognizing no less than 100
different signals.
The RFID shall be capable of transmitting information via an
Ethernet connection to the main computer.
The RFID shall be capable of connection with the computer via
RS-232 for RFID software updates.






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

The RFID shall be capable of writing tags at a distance of
at least 6 inches.
The LED display shall be capable of transitioning between
different intensity values.
The LED intensities will be individually dependant on the
inputs from the chosen input signal.
The LED display shall have independent control for each
light bar.
The monitor shall be able to output RFID identification
The monitor shall be capable of displaying the current
thermistor heat value.
The monitor shall be capable of displaying the Bluetooth
information
The monitor shall be capable of being read in ambient
light.
The Controller shall be capable of switching between at
least 3 different devices.


















The ISSC shall contain 4 sonar sensors.
The Sonar sensor shall be capable of operation between 3.5 and 5.5 Volts
The ISSC shall contain 2 heat sensors.
The heat sensor shall be capable of outputting between 0 and 5 volts.
The ISSC shall contain 1 RFID reader.
The RFID reader shall operate at a range of 860 MHz to 906 MHz
The RFID shall utilize a built in antenna.
The RFID shall operate off of a 120V power supply
The ISSC shall contain 5 different LED color bars.
The ISSC LEDs shall not be degraded by operation at maximum radiance.
The ISSC LEDs shall operate off of a 12 volt power supply.
The monitor shall be viewable from any point in the room
The monitor shall be color
The monitor shall be able to output RFID identification
The monitor shall be capable of displaying the current thermistor heat value.
The monitor shall be capable of displaying the Bluetooth information
The ISSC shall include a Bluetooth antenna.
The controller will be encased in such a way as to protect from damage.
 Project
Evaluation
 User Manual
 Scripts
 Test Results
Item Description
LED Driver
Therm. Driver
Sonar
LED (RED)
LED (Blue)
LED (White)
LED (Green)
LED (Amber)
LED Total
DAC
Thermistor
Part
STC2
INA330
Maxbotix LV-EZ1
N/A
N/A
N/A
N/A
N/A
Part #
49706560-1-ND
296-13861-1-ND
SEN-00639
N/A
N/A
N/A
N/A
N/A
NI USB-6008
(Unknown)
N/A
(Unknown)
Cost Per Unit Total Units Total Cost
($5.07)
8
($40.56)
($3.83)
2
($7.66)
($24.95)
4
($99.80)
($10.45)
3
($31.35)
($14.99)
2
($29.98)
($19.99)
2
($39.98)
($15.99)
2
($31.98)
($10.45)
3
($31.35)
($71.87)
$12.00 ($164.64)
$0
1
$0.00
$0
2
$0.00
TOTAL
Difference
Item
DAC
LED
LED Driver
Sonar
Thermistor
Thermistor Driver
Website
www.ni.com
www.cconcept.com
www.digikey.com
http://sparkfun.com/commerce/product_info.php?products_id=639
Unknown - Product donated by Ahern Heating and Plumbing
www.digikey.com
41
($312.66)
($162.66)
Total Cost
LED Driver
Therm. Driver
Sonar
LED Total
Task
Total Hours Desired
Software Development
Hardware Development
Testing
Documentation
Actual
Effort Budgeted (In
(In
Hours) Cost Budget Actual Cost Cost Difference
Hours)
270
340
$3,240.00
$4,080.00
($840.00)
120
120
$1,440.00
$1,440.00
$0.00
45
114
$540.00
$1,368.00
($828.00)
70
66
$840.00
$792.00
$48.00
35
40
$420.00
$480.00
($60.00)
Totals
270
Team Member:
Total Hours Desired
Software Development
Hardware Development
Testing
Documentation
Total Hours
Team Member:
Total Hours Desired
Software Development
Hardware Development
Testing
Documentation
Total Hours
Team Member:
Total Hours Desired
Software Development
Hardware Development
Testing
Documentation
Total Hours
340
$3,240.00
$4,080.00
($840.00)
Alex Moran
90
78
18
29
24
149
$936.00
$216.00
$348.00
$288.00
$1,788.00
22
48
18
7
95
$264.00
$576.00
$216.00
$84.00
$1,140.00
20
48
19
9
96
$240.00
$576.00
$228.00
$108.00
$1,152.00
Work Effort
June Koo Kang
90
Seung Han You
90
Alex Moran
June Koo Kang
Seung Han You

Timing limitation with DAQ.



Several Solutions have been attempted, No
practical solutions with available hardware given
functional requirments
Still waiting for dedicated computer.
PCB has not arrived in time.
 PWM

– Linear to discrete Stages
Reason: Limitations of the DAQ-6008
 Sound-LED

Reason: Timing issues between DAQ and sound
acquisition.
 Sound

interaction
Output
Reason: Computer limitations. Software exists,
however drivers were unable to install due to
internet problems with the current computer
(untested).
GND
Sonar 1
Heat 1
Sonar 2
Heat 2
Sonar 3
AI0
+5
AI4
+2.5
GND
V
AI1
PFIO
AI5
P1.3
GND
AI2
AL6
GND
Sonar 4
GND
AI3
AI7
GND
AO0
P1.2
P1.1
P1.0
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
AO1
P0.1
GND
P0.0
LED DRIVER 1
LED DRIVER 1
LED DRIVER 1
LED DRIVER 1
LED DRIVER 1
o LabView VI hierarchy shows the software hierarchy for the system.
o The GUI displays the controls for device selection, Manual light
control, RFID recognition, Sonar control, Thermistor control, Sound
pressure information, and information push buttons with description
bar.
oThe Control within the GUI selects how the system will be operating.
DAC
SIGNAL ADDITION
DAC PWM VALUE
oThe sound input has a different functionality than the
other inputs.
OBTAINING A SOUND SAMPLE
o
Allows the user to customize the rooms color
scheme to their desired preferences.
o Although the functionality of the PWM changes between the sound
input, manual control and the DAC inputs, the logic is identical for all
instances.

Sonar Sensors

Range and functionality are verified. Noise levels are determined for different ranges of
each sensor

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Led Light Bars

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Resistivity, and functionality has been verified for both thermistors. Temperatures were
checked and verified between the two devices in different ambient temperatures, and with
applied heat.
DAQ-6008

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The Driver has been tested using a signal generator for functionality. 5 different test points
were chosen, and it was verified that noticeable light control occurred.
Testing is still in progress for integration. Lights are blinking (computer limitations).
Thermistor


Current and functionality has been verified for each unit. All LED light bars will be
operating at 12.5 volts, driving roughly 2.5 to 3 amperes of current when on. Average power
is dependant on the duty cycle.
LED Driver


High Noise: Continuous changes in voltage read
Medium Noise: Takes some time to find distance
Low Noise: Distance is found quickly, with little to no signal distortion.
Input functionality has been verified. Resolving output capability.
Sound

Sound input capability has been verified. Sound output is in progress for the RFID. A
redesign is necessary for the functionality of the sound to light functionality.

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
While this project was set out to originally be a smaller
scope than other projects (due to the small group size),
there were definitely some challenges which needed to be
overcome in order to successfully complete the Iowa State
Science Center, including the need to completely learn
several programs from the ground up, with no prior
experience.
Despite some small bugs within the system, our group
believes that the project was, overall, successful. The
only implementation which was not included is expected
to be included with the next senior design team, and
should be ready for demo by its intended date at Veisha.
This project has been good experience for the future
workforce. The information applied in developing the
system, from the technical aspects, to the documentation,
even the teamwork, will be beneficial in all of our future
jobs, no matter where they may be.