Download Team #3: Group Members

Team #3: Group Members
•
Adam Davis
•
•
Tony Johnson
•
•
Peter Meyer
•
•
Isaac Krull
•
•
Joe Reisinger
•
Expertise: Digital: PLD/FPGA VHDL
Experience: Engineer Intern @ Rockwell
Expertise: Microprocessors
Experience: Engineer Intern @ Bucyrus
Expertise: Management Skills
Experience: Soldering, Hands-On
Expertise: Calibration, C++ Programming
Experience: Engineering Inter @ Johnson
Controls
Expertise: PDP, Reliability
Experience: Systems Engineer @ Baxter Health
Care
Team Resources
•
32 Man-hours/Wk
•
$100 for key part availability for material and prototyping
•
Team Members Expertise
•
No Industrial Support from Industry
Project 1 Blind-Aid
Power supply
Receiver
Transmitter
User Interface
Output
This project will transmit a warning message that will be received wirelessly
by a person. This message could contain various messages in order to warn
A person of their surroundings
Project 2 Fish Maze
Power supply
Camera
User Interface
Servos
Food Dispenser
This project will track the path of a fish through a maze that is being
Changed by the user. When the fish completes the maze it will receive
A food pellet and than be tested to see if it can repeat its path.
Project 3 Depth Finder
Power supply
Transmitter
Microprocessor
User Interface
Receiver
This project will find depth of a body of water through the use of active sonar.
It will than display the depth on a seven segment displays
Project 4 Sidewalk Heater
Power supply
User Interface
Temperature Sensor
Microprocessor
Heat Output
This project will collect solar power and convert it into heat energy in order to
keep sidewalks clear of ice.
Selection Matrix
Block
Diagram
Supports min
of one
reasonable
design block
per team
member
Weighting
Blind Aid
Fish Maze
Depth Finder
Sidewalk Heater
Blocks in
diagram
support min
of 10
components
per team
member. No
single
component
blocks
Project is
unique, has
not been a
previous
capstone
project (ask)
Blocks in
diagram are
a good match
for team
technical and
prototyping
skills
Project does
not require
special tools
or parts that
may be
difficult or
long lead
time to
obtain
Project has
external
funding
and/or
resources
Project can
be
completed
within 1
semester
time limit
Project can
be easily
prototyped,
integrated
and
demonstrate
d
Totals
15%
5%
5%
20%
15%
20%
10%
10%
100%
80
12
95
4.75
100
5
95
19
100
15
95
19
95
9.5
90
9
93.25
75
11.25
85
4.25
95
4.75
60
12
65
9.75
100
20
80
8
75
7.5
77.5
85
12.75
95
4.75
100
5
100
20
95
14.25
100
20
95
9.5
100
10
96.25
80
12
90
4.5
85
4.25
90
18
90
13.5
80
16
75
7.5
80
8
83.75
Depth Finder
•
This product uses a power supply, receiver, transmitter, microprocessor and
user interface.
•
This application specific design will relieve the end user of difficult and hard
to understand interfaces while still maintaining reliability for marine
applications
•
This system will use a 12VDC power supply designed for marine use.
•
This is a relatively simply design with 5 separate blocks. It utilizes our
strengths as a team while still delivering key concepts learned in our
academic career.
Performance Requirements
•
Functions and Capabilities
– Product must be accurate to depths of +/- 5 percent of actual depth
– Product must be able to measure depths up to 20 feet
– Product must read depth every 1 second
– Must be able to sense under the transducer within a 15 degree cone
– Must be able to work both with marine batteries and with D cell batteries
– Product must be able to differentiate small object from bottom of lake
Performance Requirements
•
Modes of Operation
– The Product shall be able to turn on and off
•
Power Inputs
– The battery must be able to last for 5 hours on full operation without recharge
– The product must be able to operate on a standard 12 V marine battery
•
Electrical Functions
– The product must be able to operate within a voltage range of 10-14.4V
•
Operator I/F Inputs
– The On/Off switch must be a momentary pushbutton switch
•
Mechanical Interfaces
– The product must be able to mount onto an L bracket
Standard Requirements
•
Market & Business Case
– The product must cost less than $100/unit
•
Environment & Safety
– The product shall be able to operate in temperatures above 32 degrees
Fahrenheit
– The product shall be able to operate in 0-90% non-condensing humidity
– The product shall be able to operate in altitude ranges from sea level to 8000
feet
– The product shall be able to be stored in temperature ranging from 20-120
degrees Fahrenheit
– The product shall be able to be stored in 0-90% non-condensing humidity
– The product shall be able to be stored in altitudes ranging from -500-60000 feet
– The product shall be able to be stored without operation for 10 years
Refined Block Diagram
Key
Power
Analog Signal
Ping Signal
Push Button #1
Push Button #2
LED Display
Blacklight
Ultrasonic
Transmitter
9V
Power Source
10 – 14.4 V
Ultrasonic
Receiver
5, 9 V
IC
User Interface
(Output)
5-10 V
Refined Block Diagram Description Table
Block
#
Block Name
Owner
Brief Description
Of Block Function
Power
Interface
s
Digital
Interfaces
Analog
Interface
s
1
Power Supply
Joe
Reisinger
Converts 12VDC to 5VDC and
9VDC with minimal ripple
In: 12VDC
Out: 5VDC,
9VDC
None
Out: Vbat
2
CPU & Clock
Adam
Davis
CPU design using CPLD
Clock determined by required time
delay
In: 5VDC
Out: Display
In: Push Buttons
In: Input from
Transducer
circuit
3
User Interface
Tony
Johnson
Allows the user to interface with
the device, including display of
depth and push buttons for options
In: 5VDC
In: Display
Out: Push
Buttons
None
4
Transmitter
Peter
Meyer
Transmits a signal into the water
for reflection detection for the
receiver
In: 5VDC,
9VDC
None
Out: Signal
In: Signal from
CPLD
5
Receiver
Isaac Krull
Receives signals from the water
and sends the corresponding
signals to the CPLD
In: 5VDC,
9VDC
None
Out: Signal to
CPLD
Block Signal Table: Power
Power Signals
Power1 (Battery to Power Supply)
Power2(Supply to U/I-(LEDs))
Power3(Supply to Microprocessor)
Power3(Supply to Transmitter)
Power4(Supply to Receiver)
Type Direction
DC
DC
DC
DC
DC
Input
Input
Input
Input
Input
Block-Block
Voltage Voltage Range
Freq Freq Range % V-Reg V-Ripple
Interconnect Nominal
Min
Max Nominal Min Max
Max
Max
Connector Cable
12
10
14.8
N/A
N/A
N/A
15
1
PCB Trace
5
4.75
5.25
N/A
N/A
N/A
5
0.1
PCB Trace
5
4.75
5.25
N/A
N/A
N/A
5
0.1
Connector Cable
9
8.5
9.5
N/A
N/A
N/A
10
0.2
Connector Cable
5
4.75
5.25
N/A
N/A
N/A
5
0.1
Block Signal Table: Digital
Digital Signals
To - From
Block #'s
Type
Dir
Block-Block
Interconnect
Output
Structure
Input
Structure
Tech
Freq
Nominal
Logic
Voltage
Push Button #1
Push Button #2
Ping, Signal from Reciever Block
LED Display
LED Back Lit Display
Crystal
To Block 3
To Block 3
From Block 5
To Block 3
To Block 3
From Block 4
Digital
Digital
Digital
Digital
Power
Clock
Output
Output
Input
Output
Output
Input
PCB/Wire
PCB/Wire
Wire
PCB/Wire
PCB/Wire
PCB
Standard
Standard
N/A
Standard
Standard
N/A
N/A
N/A
Standard
N/A
N/A
Clock
TTL
TTL
Other
Other
Other
Clock
DC
DC
Variable
DC
DC
44 kHz
5V
5V
5V
12V
12V
Digital Signals
To - From
Block #'s
Type
Dir
Push Button #1
Push Button #2
Ping, Signal from Reciever Block
LED Display
LED Back Lit Display
Crystal
To Block 3
To Block 3
From Block 5
To Block 3
To Block 3
From Block 4
Digital
Digital
Digital
Digital
Power
Clock
Output
Output
Input
Output
Output
Input
Digital Signals
To - From
Block #'s
Type
Dir
To Block 3
To Block 3
From Block 5
To Block 3
To Block 3
Digital
Digital
Digital
Digital
Power
Push Button #1
Push Button #2
Ping, Signal from Reciever Block
LED Display
LED Back Lit Display
Vih Min
Output
Output
Input
Output
Output
N/A
N/A
3.9V
N/A
N/A
3.9V
Input Characteristics
Iih Max
ViL Max IiL Max
N/A
N/A
10mA
N/A
N/A
10uA
N/A
N/A
0.8V
N/A
N/A
0.8V
Output Characteristics
Voh Min
Ioh Max VoL Max
3.9V
3.9V
N/A
9.0V
9.0V
10mA
N/A
N/A
100mA
100mA
N/A
0.8V
N/A
0.5V
0.5V
N/A
N/A
-10uA
N/A
N/A
-1uA
IoL Max
N/A
-1.2mA
N/A
1uA
1uA
Vth Min Vth Max
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Block Signal Table: Analog
To - From
Block #'s
2
2
Type
Direction
Analog
Analog
Output
Input
Block-Block
Interconnect
Ultrasonic Transducer
Ultrasonic Transducer
Coupling
Voltage Max
Amplitude
20 V
20 V
Impedance
Min
Max
450
550
450
550
Freq Range
Min
Max
39 kHz 41 kHz
39 kHz 41 kHz
Leakage
Max
Ethical/Societal Issues
•
•
Our depth finder is at risk of electrical faults and possible electrocution if
proper procedures to eliminate these risks are not taken. Our unit will
need to be enclosed in a waterproof enclosure. Proper safety grounds
must also be implemented. These actions will greatly reduce the risk of
possible electrical faults or electrocution.
The engineering of our sonar transmitter and receiver is the most critical
part of our product. If this isn’t functioning 100% correct, the product will
be useless. To ensure this area of engineering is 100% correct numerous
extensive tests will be performed on the transmitter and receiver
components.
Applicable Patents
Name: Portable Fish Finder
•
Patent Number: 6791902
Date: September 14, 2004
This patent could be designed around if we intended our unit to be
permanently used on a boat and not portable. A different mounting device other
than a suction cup could be used to mount the transducer to the boat.
Name: Method for determining depth values of a body of water
Patent Number: 5465622
Date: November 14, 1995
•
This patent could be designed around by omitting the velocity sensor
used and assume the velocity of the sound signal to be relatively constant.
For averages lakes, the velocity will not vary greatly with the change in
depth. The depth our depth finder is designed for won’t be affected by
changing velocity due to depth.
Name: Depth Finder having variable measurement capabilities
Patent Number: 5065371
Date: November 11, 1991
•
This patent could be designed around by utilizing a different display than a
liquid crystal display. A typical CRT display or LED display could be used
instead. Also, our depth finder would be designed for use in fresh water
only.