Design Report
Southern Illinois Power Cooperative Wireless Data Acquisition
To
Southern Illinois Power Cooperative
Submitted By:
Saluki Engineering Company
Project Number:
S11-61-SIPCWDAQ
Team Members:
Stephen Seipel EE
Katie Rick EE
Jenny Duan EE
Scott Parroné CpE, EE
November 29, 2011
November 29, 2011
Saluki Engineering Company
Senior Engineering Design Center
College of Engineering - Mailcode 6603
Carbondale, IL 62901-6603
(309)-255-1599
stephenseipel@gmail.com
Scott Achelpohl
Southern Illinois Power Cooperative
5975 Giant City Road
Carbondale IL 62902
(618)-599-3212
Dear Mr. Achelpohl:
This letter is in response to your request for a design report for the wireless sensor network.
Furthermore, I would like to thank you for giving us the opportunity to submit a design report for
this project.
The SIPCWDAQ team at the Saluki Engineering Company believes the report of the design has
met or exceeded the requirements as required in the request for report submitted to the Saluki
Engineering Company February 15, 2011. The team has designed a system with an Omega
infrared sensor, which exceeds the requirements, and an Extech anemometer, which will be
modified to meet the requirements of the proposed application of the wireless sensor network.
Along with these two sensors the team has designed a data logger with multiple analog inputs,
data storage and the ability to communicate wirelessly with other data loggers we design.
If there are any questions regarding the report, please feel free to contact me either by phone
number or the e-mail address listed above.
Once again, thank you for this opportunity.
Sincerely
Stephen Seipel
Project Manager
2.1-2
Table of Contents
Table of Contents .................................................................................................................................... 2.1-3
Figures ..................................................................................................................................................... 2.1-6
Tables ...................................................................................................................................................... 2.1-6
Executive summary ................................................................................................................................. 2.1-8
Acknowledgements................................................................................................................................. 2.1-9
1.
Introduction .................................................................................................................................. 2.1-10
2.
Project description ........................................................................................................................ 2.1-11
2.1.
Overview ............................................................................................................................... 2.1-11
2.1.1.
Technical Description .................................................................................................... 2.1-11
2.1.2.
Functional Description .................................................................................................. 2.1-11
2.1.3.
Definition....................................................................................................................... 2.1-11
2.1.4.
Discussion of options and trade-off studies, justification for chosen option ............... 2.1-11
2.1.5.
Description of appearance ............................................................................................ 2.1-11
2.2.
Wireless Subsystem .............................................................................................................. 2.2-14
2.2.1.
Description of function or purpose ............................................................................... 2.2-14
2.2.2.
Discussion of options and trade-off studies, justification for chosen options ............. 2.2-14
2.2.3.
Description of relationships to the other subsystems .................................................. 2.2-14
2.2.4.
List of equipment, materials, and components and Cost data ..................................... 2.2-15
2.2.5.
Transition to the next subsystem ................................................................................. 2.2-15
2.2.6.
Engineering drawings .................................................................................................... 2.2-16
2.2.7.
References .................................................................................................................... 2.2-17
2.3.
Data Logger Subsystem ......................................................................................................... 2.3-18
2.3.1.
Description of function or purpose ............................................................................... 2.3-18
2.3.2.
Discussion of options and trade-off studies, justification for chosen options ............. 2.3-18
2.3.3.
Appearance ................................................................................................................... 2.3-18
2.3.4.
Description of relationships to the other subsystems .................................................. 2.3-18
2.3.5.
2.1.4 List of equipment, materials, and components ................................................... 2.3-19
2.3.6.
Transition to the next subsystem ................................................................................. 2.3-19
2.3.7.
Engineering drawings .................................................................................................... 2.3-20
2.1-3
2.3.8.
2.4.
4.
Power .................................................................................................................................... 2.4-25
2.4.1.
Description of function or purpose of power ............................................................... 2.4-25
2.4.2.
Discussion of options and trade-off studies: ................................................................ 2.4-25
2.4.3.
Description of Relationships to the Other Subsystems ................................................ 2.4-25
2.4.4.
List of Materials and Components ................................................................................ 2.4-26
2.4.5.
Transition to Sensors..................................................................................................... 2.4-26
2.4.6.
Drawings ....................................................................................................................... 2.4-26
2.4.7.
References .................................................................................................................... 2.4-27
2.5.
3.
References .................................................................................................................... 2.3-24
Sensors .................................................................................................................................. 2.5-28
2.5.1.
Description of function or Purpose ............................................................................... 2.5-28
2.5.2.
Discussion of options and trade-off studies: ................................................................ 2.5-28
2.5.3.
Description of Relationships to the Other Subsystems ................................................ 2.5-29
2.5.4.
List of Materials and Components ................................................................................ 2.5-29
2.5.5.
Cost Data ....................................................................................................................... 2.5-29
2.5.6.
Schedule Data ............................................................................................................... 2.5-29
2.5.7.
Drawings ....................................................................................................................... 2.5-30
2.5.8.
References .................................................................................................................... 2.5-30
Cost and Implementation schedule .............................................................................................. 2.5-31
3.1.
Cost ....................................................................................................................................... 3.1-31
3.2.
Implementation schedule ..................................................................................................... 3.2-32
Other Issues .................................................................................................................................. 3.2-33
4.1.
Health issues ......................................................................................................................... 4.1-33
4.2.
Safety issues .......................................................................................................................... 4.2-33
4.2.1.
Battery Safety Issues: .................................................................................................... 4.2-33
4.2.2.
OS100E Series Safety and Concerns.............................................................................. 4.2-33
4.3.
Environmental issues ............................................................................................................ 4.3-34
4.3.1.
Battery........................................................................................................................... 4.3-34
4.3.2.
OS100E Sensor .............................................................................................................. 4.3-34
4.4.
Manufacturability ................................................................................................................. 4.4-34
5.
Conclusions and recommendations .............................................................................................. 4.4-35
6.
Appendices .................................................................................................................................... 4.4-36
2.1-4
6.1.
Test wind speed by using Extech® model 45158 mini thermo-anemometer ....................... 6.1-36
6.2.
Test Infrared Temperature Sensor........................................................................................ 6.2-40
6.3.
Test humidity by using Extech model 45158 mini thermo-anemometers. .......................... 6.3-45
6.4.
Code ...................................................................................................................................... 6.4-48
2.1-5
Figures
Figure 2.1-1 Block Diagram ................................................................................................................... 2.1-12
Figure 2.1-2 PCB Layout ........................................................................................................................ 2.1-13
Figure 2.2-1 CDR-915L - Mechanical [2.2.8].......................................................................................... 2.2-16
Figure 2.2-2 Interface Board - Mechanical [2.2.9] ................................................................................ 2.2-16
Figure 2.3-1 Functional Block Diagram [2.3.1] ...................................................................................... 2.3-20
Figure 2.3-2 MSP430F229 Pin Out [2.3.2] ............................................................................................. 2.3-20
Figure 2.3-3 Data Logger Schematic ..................................................................................................... 2.3-21
Figure 2.3-4 Top Silkscreen Showing Location of Components ............................................................ 2.3-22
Figure 2.3-5 Top Copper ....................................................................................................................... 2.3-23
Figure 2.3-6 Bottom Copper ................................................................................................................. 2.3-24
Figure 2.4-1 LM2937 Schematic 5.0V output ....................................................................................... 2.4-26
Figure 2.4-2 LM2937 Schematic 3.3V output ....................................................................................... 2.4-26
Figure 2.5-1 Infrared Sensor Connections ............................................................................................ 2.5-30
Figure 3.2-1 Implementation schedule ................................................................................................. 3.2-32
Figure 4.3-1 Expected Batter life .......................................................................................................... 4.3-34
Figure 6.1-1 Anemometer back cut off ................................................................................................. 6.1-36
Figure 6.1-2 Anemometer pins ............................................................................................................. 6.1-37
Figure 6.1-3 Fan Setup .......................................................................................................................... 6.1-37
Figure 6.1-4 Speed vs. Frequency Trial 1 .............................................................................................. 6.1-38
Figure 6.1-5 Speed vs. Frequency Trial 2 .............................................................................................. 6.1-39
Figure 6.2-1 Omega Sensor ................................................................................................................... 6.2-40
Figure 6.2-2 Omega sensor Pin locations.............................................................................................. 6.2-41
Figure 6.2-3 Infrared Test 1................................................................................................................... 6.2-42
Figure 6.2-4 Infrared Test 2................................................................................................................... 6.2-43
Figure 6.3-1 Voltage vs. Humidity ......................................................................................................... 6.3-46
Figure 6.3-2 Voltage vs. Humidity ......................................................................................................... 6.3-47
Tables
Table 2.2-1 Zlink Wireless I/O Modules [2.2.1] [2.2.2] [2.2.3] .............................................................. 2.2-14
Table 2.2-2 Linx Wireless I/O Modules [2.2.4] [2.2.5] [2.2.6] ............................................................... 2.2-14
Table 2.2-3 Coyote DataCom Wireless I/O Modules [2.2.7] ................................................................. 2.2-14
Table 2.4-1 Battery Comparison Lead-acid vs NiMH [2.4.1][2.4.2][2.4.3] ............................................ 2.4-25
Table 2.4-2 Lead-Acid Battery Comparison [2.4.1] [2.4.2] [2.4.3] ........................................................ 2.4-25
Table 2.4-3 Power Supply Components and Cost ................................................................................. 2.4-26
Table 2.5-1 Anemometer Comparison [2.5.1] [2.5.2] [2.5.3] ............................................................... 2.5-28
Table 2.5-2 Infrared Sensor Comparison [2.5.1] [2.5.2] [2.5.3] ............................................................ 2.5-29
Table 2.5-3 Sensor Cost Data ................................................................................................................ 2.5-29
Table 3.1-1 System Cost ........................................................................................................................ 3.1-31
Table 6.1-1 Air Speed Test 1 ................................................................................................................. 6.1-38
2.1-6
Table 6.1-2 Air Speed Test 2 ................................................................................................................. 6.1-39
Table 6.2-1 Infrared Test 1 .................................................................................................................... 6.2-41
Table 6.2-2 Infrared Test 2 .................................................................................................................... 6.2-43
Table 6.2-3 Infrared test 3 with Ice water ............................................................................................ 6.2-44
Table 6.3-1 Humidity Test ..................................................................................................................... 6.3-45
Table 6.3-2 Humidity Trail 2 .................................................................................................................. 6.3-46
2.1-7
Executive summary
The Saluki Engineering Company (SEC) has designed a semi-permanent data logger sensor kit
for the Southern Illinois Power Cooperative. This data logger will be portable, durable, and able to
operate in harsh environments. The kit will have three subsystems: data logger, sensors, and wireless
communication. The data logger will be able to collect up to six months of data from four independent
sensors at a rate of up to one data point per minute. The designed system will cost $1,810.44 and includes
the components to build both the wireless hub on top of the roof; the wireless node inside the roof; one
anemometer to measure air temperature, humidity, air speed and two non-contact infrared sensors to
measure surface temperature.
2.1-8
Acknowledgements
Design team 61, SIPCWDAQ, would like to acknowledge our client Southern Illinois Power
Cooperative for the funding and help they provided throughout the design and implementation
process of the wireless data acquisition kit. We would also like to thank Scott Achelpohl for
bringing us this project and all of the assistance he offered as our client contact.
Furthermore, we would also like to acknowledge Dr. Harini Ramaprasad for her contribution in
the software programming for the microcontroller and Dr. Haibo Wang for his insight of data
acquisition, sensor actual to the microcontroller, amplifier, and voltage divider. Also, Anil Mehta
for his knowledge of wireless communication systems and all three for serving as our technical
advisors. Finally, we would like to thank the management of Saluki Engineering Company for all
of their assistance throughout this project.
2.1-9
1. Introduction
Wireless sensor networks (WSN) have become quite common in modern industrial, environmental
and power grid monitoring systems. In the push to become more environmentally friendly while being
economical, older processes and systems need to become more efficient. Monitoring equipment and WSN
can help make the decisions to retrofit current systems or replace systems to efficiency of the industry.
Although many wireless sensor networks exist, the particular needs of the Southern Illinois Power
Cooperative (SIPC) are not met by any of them.
SIPC wants a system that is temporary, requires minimal changes to existing structures and
procedures, and is permanent enough that it may be left in place up to 6 months with little maintenance.
The system will be able to record data from all sensors in a central location for at least one month; and the
recorded data must be easily retrieved from the system. The system will be modular in a way that
additional sensors can be added or removed from the WSN with minor changes to the configuration of the
system. Systems that are currently available fail to meet one or more of these requirements, including the
increased cost in multiple data loggers and increased time spent in maintenance and data gathering. SIPC
wants such a system in order to study the heat dissipation of the turbine room and improve the ventilation
of the room, decreasing the wear and maintenance of the turbines and generators. The system wanted has
three subsystems: wireless communication, the data logger, and the sensors required.
2.1-10
2. Project description
2.1.Overview
2.1.1. Technical Description
The system is built around a Texas Instruments MSP430F5529 microcontroller chosen for its low power
consumption, low cost and built in peripherals. The system includes a Coyote DataCom CDR-915LXL
wireless communication module, a Zeus 12V 4.5Ah lead acid battery, two Omega infrared temperature
sensors and an Extech anemometer.
2.1.2. Functional Description
The system will include a contactless temperature sensor which will communicate to the wireless node
through a 0-5V DC connection. The analog signal from the contactless temperature sensor will be
converted to digital signal by the 12 bit analog to digital (A/D) converter on the microcontroller. Data
from the inside of the building will be transmitted to the wireless hub to be stored in the Secure Digital
card as a coma separated value. The wireless node will be powered by a 12V lead acid battery. The air
temperature, humidity sensor will communicate with the wireless hub via separate analog signals. These
analog signals will be converted to a digital signal by the microcontroller’s 12bit A/D converter. The air
speed sensor transmits a square wave to the wireless hub which will be amplified then, the period of the
signal will be recorded using the timer on the microcontroller. The data from all sensors will be stored in
the SD card of the wireless hub. The wireless hub will be powered by a lead acid battery. The wireless
hub and wireless node will be identical in hardware design lowering cost. The software for the two
devices will be minimally different, as the wireless node will be transmitting data and the wireless hub
will be receiving data and storing the data in the SD card.
2.1.3. Definition
This system as a whole is a wireless sensor network, comprised of a wireless node, wireless hub, an
anemometer, two infrared temperature sensors, and two lead acid batteries. The wireless node and
wireless hub share the same design, but there functions are different. The wireless node converts an
analog signal to digital data meaningful to the operator and transmits the data to the wireless hub. The
wireless hub receives data from the wireless node as well as converts analog signals to digital data and
stores both the received data and converted data onto a SD card.
2.1.4. Discussion of options and trade-off studies, justification for chosen option
Team 61 went with the design where the wireless hub and wireless node shared the same design
because it provides expandability, reusability of the code, lower cost and simplicity of the manufacturing
process.
2.1.5. Description of appearance
2.1-11
Figure 2.1-1 Block Diagram
2.1-12
Figure 2.1-2 PCB Layout
2.1-13
2.2.Wireless Subsystem
2.2.1. Description of function or purpose
The wireless subsystem transmits data from the remote temperature sensor to the main data logger.
2.2.2. Discussion of options and trade-off studies, justification for chosen options
Before deciding on a wireless subsystem several options were reviewed.
Table 2.2-1 Zlink Wireless I/O Modules [2.2.1] [2.2.2] [2.2.3]
Zlink Model
ZXT9-RM-KIT
ZXT9-IO-222R2
ZZ9D-NA-LR
ZZ9D-NB-LR
Frequency
900 MHz
900 MHz
900 MHz
900 MHz
Analog InputsInterface
2RS 232
2RS 232
2RS 232
4RS 232
Max OutputsThroughput
115.2 kbps
115.2 kbps
115.2 kbps
4115.2 kbps
Indoor Range
3000 ft
3000 ft
1500 Ft
1500 ft
Price
$ 1,199.00
$ 699.00
$ 649.00
$ 599.00
Max Throughput
56 kbps
56 kbps
56 kbps
56 kbps
Indoor Range
1000 Ft
1000 Ft
1000 Ft
1000 Ft
Price
$ 299.00
$ 299.00
$ 324.00
$ 324.00
Indoor Range
30 miles
10 miles
1500 Ft
Price
$ 807.00
$ 579.00
$ 315.00
Table 2.2-2 Linx Wireless I/O Modules [2.2.4] [2.2.5] [2.2.6]
Linx Model
MDEV-HP3-PPS-RS232
MDEV-HP3-SPS-RS232
MDEV-HP3-PPS-USB
MDEV-HP3-SPS-USB
Frequency
900 MHz
900 MHz
900 Mhz
900 MHz
Interface
RS232
RS232
USB
USB
Table 2.2-3 Coyote DataCom Wireless I/O Modules [2.2.7]
Coyote DataCom Model
CDR-9150XL-DK
CDR-915XL-DK
CDR-915LXL-DK
Frequency
900 MHz
900 MHz
900 MHz
Interface
RS-232
RS-232
RS-232
Max Throughput
56 kbps
56 kbps
56 kbps
All three vendors provide models that operate in the 900 MHz industrial frequency and support RS-232
or USB interfaces. The Zlink models offer a greater throughput speed, while Coyote DataCom’s models
offer a far greater range.
The CDR-915LXL-DK was chosen as the most economical unit that fit the needs of the project. It was
also the only unit that did not require additional FCC approval.
2.2.3. Description of relationships to the other subsystems
The microcontroller on the remote unit sends data to the transmitting wireless module. The wireless
module in the main data logger receives data from the remote unit and transmits it to the main
microcontroller.
2.2-14
2.2.4. List of equipment, materials, and components and Cost data
Item
Quantity Part
42
43
Manufacturer
Manufacturer part # Distributor
1 OEM design kit Coyote Data Com CDR-915LXL-DK
1 Wireless module Coyote Data Com CDR-915LXL
Distributor part # Price/part Total Price
Coyote Data Com CDR-915LXL-DK
Coyote Data Com CDR-915LXL
Total
Budget
Differnce
2.2.5. Transition to the next subsystem
Each wireless module connects to the associated microcontroller.
2.2-15
$
$
315.00
99.00
$ 315.00
$ 99.00
$ 414.00
$ 630.00
$ 216.00
2.2.6. Engineering drawings
Figure 2.2-1 CDR-915L - Mechanical [2.2.8]
Figure 2.2-2 Interface Board - Mechanical [2.2.9]
2.2-16
2.2.7. References
[2.2.1] Electronic Manufacturing Company “Zlinx Xtreme Radio Modem,” copyright © 2010. Web. 2 Feb
2011. <http://www.bb-elec.com/bb-elec/literature/ZXTx-RM-2510ds.pdf>
[2.2.2] Electronic Manufacturing Company. “Zlinx Xtreme I/O Cable Replacement & Modbus Solution,”
copyright © 2010. Web. 5 Feb 2011. <http://www.bbelec.com/product_multi_family.asp?MultiFamilyId=112>
[2.2.3] Electronic Manufacturing Company. copyright © 2010. Web. 6 Mar 2011. < http://www.bbelec.com/product_multi_family.asp?MultiFamilyId=92>
[2.2.4] Linx Technologies Inc. “Zlinx Wireless Modbus I/O-Faster and Better than Ever,”
2009.Web. 8 Mar 2011. < http://www.linxtechnologies.com/Documents/TXM-900-HP3xxx_Data_Guide.pdf>
copyright ©
[2.2.5] Linx Technologies Inc. “ES SERIES TRANSMITTER DATA GUIDE,” copyright © 2011.Web. 10 Mar
2011. <http://www.linxtechnologies.com/Documents/TXM-xxx-ES_Data_Guide.pdf>
[2.2.6] Linx Technologies Inc. “Price List/ Order Terms,” copyright © 2011. Web. 20 Mar 2011.
<http://www.linxtechnologies.com/Registration/pricelist.pdf>
[2.2.7] Coyote DataCom. “CDR-9150XL Advanced OEM Spread-spectrum Data Radio Module. Web. 2
May 2011. < http:// www.coyotedatacom.com/products/oemradio /CDR9150XL.htm>
[2.2.8] Coyote DataCom. “Coyote DataCom CDR-915L Mechanicals.” Copyright 2001. Web. 19 Nov 2011.
http://www.coyotedatacom.com/pdfs/CDR915LMech.pdf
[2.2.9] Coyote DataCom. “Coyote DataCom CDR Family Interface Mounting Mechanicals.” Copyright
2009. Web. 19 Nov 2011. http://www.coyotedatacom.com/pdfs/INTMech.pdf
2.2-17
2.3.Data Logger Subsystem
2.3.1. Description of function or purpose
The data logger subsystem covers bother the wireless hub and wireless node because of the shared
design. The data logger is used to convert analog signals to digital data, transmit and receive data from
other data loggers in the system and to store the data. In the designed data logger this accomplished by
using a Texas Instruments MSP430F5529 microcontroller, this provides a solution to converting and
storing the data, as well as providing an interface to the wireless module for communication.
2.3.2. Discussion of options and trade-off studies, justification for chosen options
The MSP430F5529 is an efficient 16-bit ultra-low power microcontroller which can wake from standby
mode, quickly perform its task and return to low power mode. The MSP430F5529 is a microcontroller
configuration with integrated USB and PHY supporting USB 2.0, four 16-bit timers, a high-performance
12-bit analog-to-digital converter (ADC), two universal serial communication interfaces (USCI), hardware
multiplier, DMA, real-time clock module with alarm capabilities, and 63 I/O pins. This makes it ideal for
this application.
2.3.3. Appearance
The designed data logger is a 5”x 5”printed circuit board with the microcontroller and external
components soldered onto the board.
2.3.4. Description of relationships to the other subsystems
The microcontroller on the remote unit interfaces between the sensor and the wireless module. The
microcontroller on the second unit accepts data from the second wireless module and the remaining
three sensors and outputs it to the SD data card.
2.3-18
2.3.5. 2.1.4 List of equipment, materials, and components
Item Quantity Part
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
28
29
30
31
32
33
34
35
36
37
38
30
6
6
6
4
6
10
6
4
2
2
14
2
2
2
10
8
4
6
6
4
4
3
3
3
4
4
8
6
8
2
2
4
4
4
0.1uF
0.47uF
0.22uF
47pF
4.7uF
10pF
1uF
10uF Tantalum 6.3V
SL02
TSM-107-01-T-DH
CON10
CON2
CON5
51387-0578
SCHA4B0100
0 ohm
10k
110
33
100K
82k
270k
MSP430F5529
LMV321/SO
16MHz
12pF 50V
Crystals 32.768KHz
coded rotory switch
Tactile Switch
10uF 10V
Red LED
MAX232
47K
100
470
Manufacturer
Manufacturer part #
Distributor Distributor part #
Price/part Total Price
AVX
Vishay
Kemet
Xicon
TDK
Vishay
Kemet
Kemet
Vishay
FCI
3M
Phoenix
Phoenix
Molex
ALP
Xicon
Panasonic
Xicon
Panasonic
Xicon
Bourns
Xicon
Texas Instruments
Fairchild
Abracon
Xicon
Abracon
Mountain Switch
C&K Components
TDK
Kingbright
Texas Instruments
Panasonic
Xicon
Panasonic
08055C104JAT2A
VJ0805V474MXXCW1BC
C0805C224Z3VACTU
140-CC501N470J-RC
C2012Y5V1A475ZT
VJ0805A100KXACW1BC
C0805C105M4RACTU
T491A106K006AT
SL02-GS08
67996-414HLF
929870-01-10-RA
1935161
1935190
51387-0578
SCHB1B0100
260-0-RC
ERJ-6GEYJ103V
292-110-RC
ERJ-6GEYJ330V
292-100K-RC
CR0805-FX-8202ELF
260-270K-RC
MSP430F5529IPN
LMV321AP5X
ABL-4.000MHZ-B2
140-CC501N120J-RC
AB38T-32.768KHZ
106-H4A10-EV
PTS645SL70 LFS
C2012X5R1A106KT/1.25
WP7104LID
MAX232DR
ERJ-6GEYJ473V
292-100-RC
ERJ-6GEYJ471V
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
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$
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581-08055C104J
77-VJ0805V474MXXCBC
80-C0805C224Z3V
140-CC501N470J-RC
810-C2012Y5V1A475Z
VJ0805A100KXACW1BC
80-C0805C105M4R
80-T491A106K006
78-SL02
649-67996-414HLF
517-929870-01-10-RA
651-1935161
651-1935190
538-51387-0578
688-SCHB1B0100
260-0-RC
667-ERJ-6GEYJ103V
292-110-RC
667-ERJ-6GEYJ330V
292-100K-RC
652-CR0805FX-8202ELF
260-270K-RC
595-MSP430F5529IPN
512-LMV321AP5X
815-ABL-4-B2
140-CC501N120J-RC
815-AB38T-32.768KHZ
106-H4A10-EV
611-PTS645SL70LFS
810-C2012X5R1A106K-3
604-WP7104LID
595-MAX232DR
667-ERJ-6GEYJ473V
292-100-RC
667-ERJ-6GEYJ471V
0.05
0.19
0.09
0.06
0.11
0.10
0.08
0.20
0.21
0.37
1.19
0.36
0.79
2.20
0.89
0.04
0.04
0.04
0.04
0.04
0.05
0.04
8.24
0.41
0.39
0.06
0.24
2.37
0.19
0.13
0.05
0.71
0.04
0.04
0.04
Total
Budget
Differnce
2.3.6. Transition to the next subsystem
In order to provide a 3.3V DC to the microcontroller we designed the power regulation section,
discussed below.
2.3-19
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
1.50
1.14
0.54
0.36
0.44
0.60
0.80
1.20
0.84
0.74
2.38
5.04
1.58
4.40
1.78
0.40
0.32
0.16
0.24
0.24
0.20
0.16
24.72
1.23
1.17
0.24
0.96
18.96
1.14
1.04
0.10
1.42
0.16
0.16
0.16
$ 76.52
$ 670.00
$ 593.48
2.3.7. Engineering drawings
Figure 2.3-1 Functional Block Diagram [2.3.1]
Figure 2.3-2 MSP430F229 Pin Out [2.3.2]
2.3-20
Figure 2.3-3 Data Logger Schematic
2.3-21
Figure 2.3-4 Top Silkscreen Showing Location of Components
2.3-22
Figure 2.3-5 Top Copper
2.3-23
Figure 2.3-6 Bottom Copper
2.3.8. References
[2.3.1] Texas Instruments. “Mixed Signal Microcontroller.” Web. 19 Nov 2011.
http://www.ti.com/lit/ds/symlink/msp430f5529.pdf. Page 3.
[2.3.2] Texas Instruments. “Mixed Signal Microcontroller.” Web. 19 Nov 2011.
http://www.ti.com/lit/ds/symlink/msp430f5529.pdf. Page 4.
2.3-24
2.4.Power
2.4.1. Description of function or purpose of power
The battery is meant to power the entire system, while allowing access in remote locations.
2.4.2. Discussion of options and trade-off studies:
Originally in the proposal, the team had decided to go with a NiMH battery type however the battery
used in this design is a 12V lead acid battery, from Zeus Batteries. When we compare the costs of NiMH
to the costs of lead acid batteries as shown in table 2.1, lead acid batteries are the cheaper option.
Table 2.4-1 Battery Comparison Lead-acid vs NiMH [2.4.1][2.4.2][2.4.3]
Battery
NiMH Battery pack
Zeus PC4.5-12
AT:Tenergy NiMH
B.B.BP7-12
Voltage
12V
12V
12V
12V
Capacity
4.5 A/h
4.5 A/h
5 A/h
7A/h
Cost
$53.69
$12.95
$84.99
$25.99
The weight of the battery might be a concern in some applications as oppose to the weight of NiMH, but
it all comes down to cost. In this particular application of this project, the battery is expected to perform
in a higher temperature environment. Both battery types’ life decreases with prolonged exposure to
higher temperatures, therefore it would be much more cost effective to replace the cheaper battery.
Once it was decided that lead acid was the new direction, the next consideration was the weight of the
battery. Since this particular data logger would be strapped to the ceiling, the data logger could not be too
heavy. In table 2.2 we can see the comparison of four different lead acid batteries with respect to weight,
cost and capacity.
Table 2.4-2 Lead-Acid Battery Comparison [2.4.1] [2.4.2] [2.4.3]
Battery
Amstron
B.B.BP7-12
CSB GP1272
Zeus PC4.4-12
Voltage
12V
12V
12V
12V
Capacity
3.4 A/h
7 A/h
7.2 A/h
4.5 A/h
Cost
$21.99
$25.99
$23.84
$12.95
Weight
2.87 lbs
5.5 lbs
5.5 lbs
3.5 lbs
Aside from the low price, the Zeus battery is relatively light weight, and has a higher capacity than the
Amstron, so seems to be the best choice.
2.4.3. Description of Relationships to the Other Subsystems
The 12 V battery powers the entire system, however throughout the system there exists three voltage
requirements, which are 12V, 5V, and 3.3V. The Infrared sensor requires 12v, so the battery supplies a
direct power source. For the systems that require less than the source, there are voltage regulators to step
down the 12 volts. The source voltage from the battery passes through the LM2937 voltage regulator to
output 5V, and then supplies the RS232 communication module. The source voltage passes through an
2.4-25
additional LM2937 voltage regulator to step down the 12V to 3.3V, which in turn powers; the micro
controller, the Secure Digital (SD) card, the off-amps, the air speed, humidity, and the temperature
sensors.
2.4.4. List of Materials and Components
Table 2.4-3 Power Supply Components and Cost
Item
Quantity Part
1
26
27
Manufacturer Manufacturer part #
Distributor
Distributor part #
1 12V 4.5Ah
Zeus Batteries PC4.5-12
Zeus Batteries PC4.5-12
2 LM2937-5/SOT National
LM2937IMP-5.0/NOPB DigiKey
LM2937IMP-5.0CT-ND
2 LM2937-3.3/SOT National
LM2937IMP-3.3/NOPB DigiKey
LM2937IMP-3.3CT-ND
Total
Budget
Differnce
2.4.5. Transition to Sensors
The power section also provides 3.3V DC and 5.0 V DC for the sensor subsection.
2.4.6. Drawings
Figure 2.4-1 LM2937 Schematic 5.0V output
Figure 2.4-2 LM2937 Schematic 3.3V output
2.4-26
Price/part Total Price
$
$
$
12.95
2.06
2.06
$ 12.95
$ 4.12
$ 4.12
$ 21.19
$ 150.00
$ 128.81
2.4.7. References
[2.4.1] atbatt.com. World’s largest site for Batteries. Copyright © 2011. Web. 17 Sept 2011.
<http://www.atbatt.com>
[2.4.2] Powerizer. Copyright © 2000-2011. Web. 17 Sept 2011. <http://www.batteryspace.com>
[2.4.3] Zeus. Copyright © 2011. Web. 24 Sept 2011. <http://www.powercellbattery.com>
[2.4.4] Battery University. “Can the Lead-acid Battery Compete in Modern Times?”. Copyright © 2011.
Web. 15 Oct 2011. <http://batteryuniversity.com/>
2.4-27
2.5.Sensors
2.5.1. Description of function or Purpose
2.5.1.1.
Air speed Sensor
For this application of the air speed sensor, it is used to measure the speed of the air exiting the vents on
the roof of the building. The data collected from the air speed sensor combined with the air temperature
can be used to find the heat transferred between the inside and outside of the building via the vents.
2.5.1.2.
Infrared Temperature Sensor
The infrared temperature sensor in this application is used to measure the temperature of the inside ceiling
and the outside roof. This data will be used for calculating the heat transferred from the inside to outside
the building via the roof. Other applications of this sensor include recording temperature of inaccessible
areas and for objects that may move.
2.5.1.3.
Humidity Sensor
In this application the humidity sensor is used in combination with the temperature of the air to determine
the density of the air, this is used then to better calculate the thermal transfer of the air. The air
temperature, air speed and humidity can also be used to calculate the mass of air transferred from one area
to another. Other applications of the humidity sensor include determining the comfort level of a
residential area.
2.5.2. Discussion of options and trade-off studies:
For the anemometer, the 451126 and HHF143B models have an excessive wind speed range.
Furthermore, the temperature range of 451126 models could be problematic during the winter month with
a range only 32 to 122°F. Even though the accuracy range is better than the Extech model, the cost is
prohibitive.
Table 2.5-1 Anemometer Comparison [2.5.1] [2.5.2] [2.5.3]
Manufacturer
Extech
Extech
Omega
Model #
45158
451126
HHF143B
Wind Speed
Output
Range
Not given
1.1 to 62.5 MPH
Digital RS232 0.7 to 100 MPH
Voltage
0.45 to 89 MPH
Accuracy
Range WS
±3%
±3%
±1.0%
Temeratue
Accuracy
Humidity Accuracy
Range
Range Temp
Range
Range RH
Cost
0 to 122°F
±1.8°F
10% to 95%
± 4%
$ 139.99
32 to 122°F
±1.5°F
NA
NA
$ 299.99
-22 to 212°F
±0.5°F
NA
NA
$ 845.00
For the infrared temperature sensors the OS1551-A model has a lower temperature range and
output range is in milliamps instead of voltage which is more desirable. Even though the accuracy is ± 1%
it does not justify the higher cost.
2.5-28
Table 2.5-2 Infrared Sensor Comparison [2.5.1] [2.5.2] [2.5.3]
Manufacturer
Omega
Omega
Extech
Extech
Model #
OS101E-V1
OS1551-A
42560
IR201
Output
Range
0-5V dc
4-20 mA
Digital
NA
Temperature
Range
0 - 1000° F
32 - 392° F
-58° - 1922°F
-58 - 518° F
Accuracy
Range
±2% or 4° F
±1% or 3° F
±2% or 4° F
±2.5% or 3° F
Operating
Range
32 to 122°F
32 to 122°F
Not Given
Not Given
Cost
$
195.00
$
690.00
$
329.99
$
59.00
2.5.3. Description of Relationships to the Other Subsystems
The sensors will communicate with the data logger using three analog signals, which will be determined
through testing of the three sensors. The test will include the careful dismantling of one anemometer,
housing the humidity sensor and the airspeed sensor, and the infrared sensor. The data from the runs will
be compared and then used to calibrate the data logger software to the anemometer. The Infrared sensor
will be powered by 12V and the humidity sensor and the airspeed sensor, and later on the temperature
sensor will be powered by 3.3V.
2.5.4. List of Materials and Components
1. 2- Anemometer w/temp &humidity
2. 2 Infrared Temperature Sensor 0-5V out
3. 2-Sensor Head mounting Brackets
2.5.5. Cost Data
After submitting the proposal the team realized that it was necessary to have two anemometers for
testing.
Table 2.5-3 Sensor Cost Data
Item
Quantity Part
1
2
3
Manufacturer Manufacturer part # Distributor
2 Anemometer w/ Temp & Humidity
Extech
2 Infrared Temperature Sensor 0-5V out Omega
2 Sensor Head Mounting Bracket
Omega
Distributor part # Price/part Total Price
45158
Bell Electronics 45158
OS101E-V1
Omega.com
OS101E-V1
OS100-MB
Omega.com
OS100-MB
Total
Budget
Differnce
2.5.6. Schedule Data
2.5-29
$
$
$
139.99 $ 279.98
270.00 $ 540.00
20.00 $ 40.00
$ 859.98
$ 669.98
$ (190.00)
2.5.7. Drawings
Figure 2.5-1 Infrared Sensor Connections
2.5.8. References
[2.5.1] OMEGA Engineering, Inc. “Infrared Temperature Sensor/Transmitters”, © copyright 200-2010.
Web. 17 Feb 2011. <http://www.omega.com/ppt/pptsc.asp?ref=OS101E&Nav=temj11>
[3.2] OMEGA Engineering, Inc. “Infrared Temperature sensor with USB interface”, © copyright 20002010. Web. 1 Mar 2011. <http://www.omega.com/ppt/pptsc.asp?ref=IR-USB&TTID=IR-USB&Nav>
[3.3][2.5.2] Extech Instrument Corporation. “Pocket IR Thermometer,” © copyright 2007, all rights
reserved. Web. 5 Mar 2011.
<http://www.extech.com/instruments/product.asp?catid=i&prodid=44>
[3.4] Extech Instrument Corporation. “CFM/CMM Vane Anemometer Data logger”, © copyright 20072008. Web. 17 Mar 2011. All rights reserved
<http://www.extech.com/instruments/product.asp?catid=1&prodid=44 >
[3.4]<http://www.extech.com/instruments/product.asp?catid=1&prodid=44>
[2.5.3] Extech Instrument Corporation. “Extech 45158 Mini Waterproof Thermo
Humidity Meter,” © copyright 2011. Web. 17 Mar 2011. All rights reserved <
http://www.northerntool.com/shop/tools/product_200324285_200324285 >
2.5-30
Anemometer and
3. Cost and Implementation schedule
3.1.Cost
Table 3.1-1 System Cost
Item Quantity Part
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
1 12V 4.5Ah
30 0.1uF
6 0.47uF
6 0.22uF
6 47pF
4 4.7uF
6 10pF
10 1uF
6 10uF Tantalum 6.3V
4 SL02
2 TSM-107-01-T-DH
2 CON10
14 CON2
2 CON5
2 51387-0578
2 SCHA4B0100
10 0 ohm
8 10k
4 110
6 33
6 100K
4 82k
4 270k
3 MSP430F5529
3 LMV321/SO
2 LM2937-5/SOT
2 LM2937-3.3/SOT
3 16MHz
4 12pF 50V
4 Crystals 32.768KHz
8 coded rotory switch
6 Tactile Switch
8 10uF 10V
2 Red LED
2 MAX232
4 47K
4 100
4 470
2 Anemometer w/ Temp & Humidity
2 Infrared Temperature Sensor 0-5V out
2 Sensor Head Mounting Bracket
1 Spread-spectrum data radio, OEM design kit
1 Wireless module
5 Printed Circuit Board
1 Electrical Testing
Manufacturer
Manufacturer part #
Distributor
Zeus Batteries
AVX
Vishay
Kemet
Xicon
TDK
Vishay
Kemet
Kemet
Vishay
FCI
3M
Phoenix
Phoenix
Molex
ALP
Xicon
Panasonic
Xicon
Panasonic
Xicon
Bourns
Xicon
Texas Instruments
Fairchild
National
National
Abracon
Xicon
Abracon
Mountain Switch
C&K Components
TDK
Kingbright
Texas Instruments
Panasonic
Xicon
Panasonic
Extech
Omega
Omega
Coyote Data Com
Coyote Data Com
Advanced Circuts
Advanced Circuts
PC4.5-12
08055C104JAT2A
VJ0805V474MXXCW1BC
C0805C224Z3VACTU
140-CC501N470J-RC
C2012Y5V1A475ZT
VJ0805A100KXACW1BC
C0805C105M4RACTU
T491A106K006AT
SL02-GS08
67996-414HLF
929870-01-10-RA
1935161
1935190
51387-0578
SCHB1B0100
260-0-RC
ERJ-6GEYJ103V
292-110-RC
ERJ-6GEYJ330V
292-100K-RC
CR0805-FX-8202ELF
260-270K-RC
MSP430F5529IPN
LMV321AP5X
LM2937IMP-5.0/NOPB
LM2937IMP-3.3/NOPB
ABL-4.000MHZ-B2
140-CC501N120J-RC
AB38T-32.768KHZ
106-H4A10-EV
PTS645SL70 LFS
C2012X5R1A106KT/1.25
WP7104LID
MAX232DR
ERJ-6GEYJ473V
292-100-RC
ERJ-6GEYJ471V
Zeus Batteries
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
DigiKey
DigiKey
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Mouser
Distributor part #
45158
PC4.5-12
581-08055C104J
77-VJ0805V474MXXCBC
80-C0805C224Z3V
140-CC501N470J-RC
810-C2012Y5V1A475Z
VJ0805A100KXACW1BC
80-C0805C105M4R
80-T491A106K006
78-SL02
649-67996-414HLF
517-929870-01-10-RA
651-1935161
651-1935190
538-51387-0578
688-SCHB1B0100
260-0-RC
667-ERJ-6GEYJ103V
292-110-RC
667-ERJ-6GEYJ330V
292-100K-RC
652-CR0805FX-8202ELF
260-270K-RC
595-MSP430F5529IPN
512-LMV321AP5X
LM2937IMP-5.0CT-ND
LM2937IMP-3.3CT-ND
815-ABL-4-B2
140-CC501N120J-RC
815-AB38T-32.768KHZ
106-H4A10-EV
611-PTS645SL70LFS
810-C2012X5R1A106K-3
604-WP7104LID
595-MAX232DR
667-ERJ-6GEYJ473V
292-100-RC
667-ERJ-6GEYJ471V
Bell Electronics 45158
OS101E-V1
Omega.com
OS101E-V1
OS100-MB
Omega.com
OS100-MB
CDR-915LXL-DK
CDR-915LXL
SIPCWDAQ Rev. 1.0
Coyote Data ComCDR-915LXL-DK
Coyote Data ComCDR-915LXL
Total
Budget
Differnce
3.1-31
Price/part Total Price
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
12.95
0.05
0.19
0.09
0.06
0.11
0.10
0.08
0.20
0.21
0.37
1.19
0.36
0.79
2.20
0.89
0.04
0.04
0.04
0.04
0.04
0.05
0.04
8.24
0.41
2.06
2.06
0.39
0.06
0.24
2.37
0.19
0.13
0.05
0.71
0.04
0.04
0.04
139.99
270.00
20.00
315.00
99.00
70.75
85.00
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
12.95
1.50
1.14
0.54
0.36
0.44
0.60
0.80
1.20
0.84
0.74
2.38
5.04
1.58
4.40
1.78
0.40
0.32
0.16
0.24
0.24
0.20
0.16
24.72
1.23
4.12
4.12
1.17
0.24
0.96
18.96
1.14
1.04
0.10
1.42
0.16
0.16
0.16
279.98
540.00
40.00
315.00
99.00
353.75
85.00
$ 1,810.44
$ 2,479.98
$ 669.54
3.2.Implementation schedule
Figure 3.2-1 Implementation schedule
ID
Project Name
Days
Start
End
1.0
SIPCWDAQ
Implimentation
70
20-Dec
28-Feb
1.1
1.2
1.3
Assembly
Software Codeing
Testing
10
70
47
20-Dec
20-Dec
10-Jan
30-Dec
28-Feb
26-Feb
20-Dec 27-Dec 3-Jan 10-Jan 17-Jan 24-Jan 31-Jan
3.2-32
7-Feb 14-Feb 21-Feb 28-Feb 6-Mar
4. Other Issues
4.1.Health issues
Health Hazard Data: with regard to the lead-acid battery as directed from the Zeus Company data sheet
LEAD: The toxic effects of lead are accumulative and slow to appear. It affects the kidneys,
reproductive, and central nervous systems. The symptoms of lead overexposure are anemia, vomiting,
headache, stomach pain, and dizziness, loss of appetite, and muscle and joint pain. Exposure to lead from
a battery most often occurs during lead reclaim operations through the breathing or ingestion of lead dust
or fumes.
SULFURIC ACID: Sulfuric acid is a strong corrosive. Contact with acid can cause severe burns on the
skin and in eyes. Ingestion of sulfuric acid will cause GI-Tract burns. Acid can be released if the battery
case is damaged or if vents are tampered with.
FIBER GLASS SEPERATOR: Fiber glass is an irritant of the upper respiratory, skin, and eyes. For
exposure up to up to 10F/CC use MSA Comfoll with type H filter. Above 10F/CC up to 50F/CC use
Ultra-Twin with type H filter, this product is not considered carcinogenic by.
4.2.Safety issues
4.2.1.
Battery Safety Issues:
4.2.1.1.
Spill or leak procedures:
Steps to take in case of leak or spill: If sulfuric acid is spilled from a battery, neutralized acid with
bicarbonate, sodium carbon, or calcium oxide. Flush area with water and discard to the sewage system.
Do not allow neutralized acid into sewage system.
4.2.1.2.
Waste disposal method:
Neutralized acid may be flushed down the sewer. Spent batteries must be treated as hazardous waste and
disposed of according to local, state, and federal guidelines.
4.2.1.3.
Protection
Protective equipment must be worn if the battery is cracked or otherwise damaged. A respirator should
be worn during reclaim operations if the TLV is exceeded.
4.2.1.4.
Electrical Safety:
Due to the battery’s low internal resistance and high power density, high levels of short circuit current can
be developed across the battery terminals. Do not rest tools or cables on the battery. Use insulated tools
only: Follow all installation instructions and diagrams when installing or maintaining battery systems.


4.2.2. OS100E Series Safety and Concerns
There are no user replaceable fuses in this product.
Do not operate the equipment in flammable or explosive environments.
4.2-33

Not intended to be used in medical applications or used on humans.
4.3.Environmental issues
4.3.1. Battery
Due to the higher temperatures in the plant, the expected life of the battery will decrease. Below, table 1
shows the effect of temperature on the life of the battery.
Figure 4.3-1 Expected Batter life
Expected Battery life in Higher
Temperatures
6
5
Years
4
3
2
Life
1
0
77
79
81
83
85
87
89
91
93
95
97
99
Temperature (Fo)
4.3.2. OS100E Sensor
Due to the environment in the plant, smoke, dust, and fumes, the optic lens will get dirty, and cause
erroneous temperature readings. To keep the surface of the optical lens clean, the air purge collar
accessory is recommended, OS100-AP. It runs for $30 off of the Omega website.
(http://www.omega.com/ppt/pptsc.asp?ref=OS102)
Also it is important to note that the sensing head can operate in an ambient temperature of 0° to 70° C (32
to158°F). There is a warm up period of 3 minutes after power up. After the warm up period, temperature
measurement can be made.
Another note, when the ambient temperature around the sensor head changes abruptly. The sensor head
goes through thermal shock. It takes a certain amount of time for the sensor head to stabilize to the new
ambient temperature.
4.4.Manufacturability
The designed system uses a printed circuit board, which is manufactured off site. By using a printed
circuit board the system can be produced in small to large quantities with ease. This also allows
4.4-34
automated or manual assembly types to be used for the assembly of the data logger. Automated
assembly is quicker and has higher accuracy; however there are limitations and cost can be higher.
Manual assembly is used for smaller quantities or for abnormal parts, this can take more time. The rest
of the system is designed so it is easy to assemble; there are screw terminals for the analog inputs, the
frequency input, the battery connection, and for the voltage outputs to the sensors. The wireless
module has mounting holes and a ten pin connector on the printed circuit board for easy mounting. The
printed circuit board also includes four mounting holes so it can easily be mounted in a case or other
location.
5. Conclusions and recommendations
In order to provide SIPC with the best possible solution to their problem SEC Team 61 has designed a
system which the applications are not limited to recording the temperature of the roof or the speed,
temperature and humidity of the air moving through the exhaust vents on the roof of the power plant.
There are multiple possible applications of this system which include but are not limited to recording
temperature of a rotating drive shaft or a system which is not easily accessible. The team also designed
a system which allows for the recording of up to six analog inputs and one frequency input. The design
includes the Texas Instruments MSP430F5529 microcontroller for low power consumption, a single PCB
design for lower manufacturing cost, a wireless module and battery for portability. The design also
includes one anemometer for speed, temperature and humidity of air, and two infrared temperature
sensors for measuring surface temperatures. Although the design includes these components there is
still work that needs to be done before the system could be considered ready for use.
Work that still needs to be done includes; the assembly of the hardware of the system, the completion,
testing and debugging of software to be loaded to the microcontroller, testing of the power
consumption of the system, communication between the wireless node and wireless hub.
4.4-35
6. Appendices
6.1.Test wind speed by using Extech® model 45158 mini thermoanemometer
Equipment: Mini fan, DSO3102A Digital Storage Oscilloscope and Power Source, and thermoanemometer.
1. Attach the mini fan to the power source creating a variable voltage, and therefore a variable
fan.
2. Attach the oscilloscope to the sensor, one on the ground clip, and the other touching the first
pin of the V22521 chip.
3. Starting at a low voltage place the fan so that it is blowing into the turbine, and record the
wind speed on the Extech® display screen, and the frequency off the oscilloscope.
4. Repeat step 3 while increasing the voltage of the fan, while each time recording the speed and
the frequency.
Figure 6.1-1 Anemometer back cut off
6.1-36
Figure 6.1-2 Anemometer pins
Figure 6.1-3 Fan Setup
6.1-37
Table 6.1-1 Air Speed Test 1
frequency (Hz) Speed(m/s)
66.45
4.1
64.94
4
58.82
3.7
45.56
2.7
75
4.3
65.83
4
67.29
4.1
26.29
1.8
17.06
1.6
48.54
3.1
11.16
0.05
66.03
4.1
38.89
2.3
Figure 6.1-4 Speed vs. Frequency Trial 1
Speed(m/s) vs Frequency (Hz)
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
Speed(m/s)
Linear (Speed(m/s))
y = 0.0607x + 0.0195
R² = 0.9571
0
20
40
60
6.1-38
80
Table 6.1-2 Air Speed Test 2
frequency
(Hz)
Speed
(m/s)
59.14
3.5
27.76
2.7
61.73
3.6
50.07
2.3
30.07
1.8
32.15
2
48.78
2.9
32
2
17.09
1
25.61
1.6
20.19
1.1
97.09
5.8
105.3
6.3
102.1
6.1
91.4
5.5
84
5
86.2
5.3
28
1.7
34.06
2.1
21.09
1.3
19.88
1.2
17.54
1
Figure 6.1-5 Speed vs. Frequency Trial 2
Speed (m/s) vs Frequency (Hz)
7
6
5
4
Speed (m/s)
3
Linear (Speed (m/s))
2
y = 0.0588x + 0.0768
R² = 0.9774
1
0
0
50
100
150
6.1-39
6.2.Test Infrared Temperature Sensor
Equipment: Rice Cooker, Power Source, OS100-SOFT, Voltmeter, and Infrared Temperature
Sensor.
(First Trial) boiling water.
1. Using a 12-24V power source hook up the omega sensor to the power source. The positive
terminal on pin 1 and the negative terminal on pin 8.
2. Next hook up the RS232 cable to the sensor using the following connections: pin 5 to Signal
GND (yellow), pin 6 to Tx (red), and pin 7 to Rx (Brown).
3. Hook up the Omega infrared sensor to the computer using the RS232 serial cable, and start
the OS100-SOFT program.
4. To obtain the voltage positive terminal on pin 2 and negative to pin 5.
5. Set the emissivity to the 5 setting on both dials
6. Fill the rice cooker with water, and heat.
7. Place the sensor head about an inch away from the surface of the water and record the
temperature and voltage.
8. Keep recording the temperature and voltage as temperature increases.
Figure 6.2-1 Omega Sensor
6.2-40
Figure 6.2-2 Omega sensor Pin locations
Table 6.2-1 Infrared Test 1
Temperature (°F) Voltage (V)
94
0.47
98
0.499
100
0.494
101
0.504
104
0.524
106
0.529
108
0.532
110
0.549
111
0.553
112
0.559
113
0.564
117
0.584
122
0.609
124
0.618
127
0.634
128
0.638
132
0.648
134
0.664
Temperature (°F) Voltage (V)
139
0.688
142
0.712
146
0.728
147
0.733
149
0.74
150
0.749
151
0.754
154
0.769
158
0.78
161
0.8
165
0.823
167
0.838
169
0.844
175
0.878
176
0.866
177
0.887
174
0.877
172
0.858
6.2-41
Figure 6.2-3 Infrared Test 1
Voltage
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
50
70
90
y = 0.005x - 1E-05
R² = 0.9988
110
130
Voltage
6.2-42
150
170
190
Linear (Voltage)
Table 6.2-2 Infrared Test 2
Temperature (°F) Voltage (V)
107
0.53
110
0.55
124
0.63
120
0.6
122
0.61
124
0.62
122
0.609
123
0.615
125
0.625
127
0.635
128
0.64
131
0.662
133
0.664
135
0.675
139
0.689
141
0.704
139
0.7
140
0.69
144
0.715
142
0.71
143
0.715
146
0.73
150
0.75
148
0.749
Temperature (°F) Voltage (V)
150
0.755
151
0.742
154
0.762
156
0.77
157
0.78
151
0.764
158
0.755
160
0.805
158
0.784
161
0.806
162
0.814
165
0.83
166
0.821
168
0.845
173
0.88
170
0.879
176
0.88
182
0.905
185
0.901
184
0.922
185
0.94
193
0.948
194
0.95
Figure 6.2-4 Infrared Test 2
Temperature
250
200
150
Temperature
100
Linear (Temperature)
y = 200.87x - 0.4177
R² = 0.9914
50
0
0
0.2
0.4
0.6
6.2-43
0.8
1
(Third Trial) Boiling Ice water
Equipment: Rice Cooker, Power Source, OS100-SOFT, Voltmeter, and Infrared Temperature
Sensor, Water, Ice.
1. Using a 12-24V power source hook up the omega sensor to the power source. The positive
terminal on pin 1 and the negative terminal on pin 8.
2. Next hook up the RS232 cable to the sensor using the following connections: pin 5 to Signal
Gnd (yellow), pin 6 to Tx (red), and pin 7 to Rx (Brown).
3. Hook up the Omega infrared sensor to the computer using the RS232 serial cable, and start
the OS100-SOFT program.
4. To obtain the voltage positive terminal on pin 2 and negative to pin 5.
5. Set the emissivity to the 5 setting on both dials
6. Fill the rice cooker with water add 32 oz of ice.
7. Place the sensor head about an inch away from the surface of the water and record the
temperature and voltage.
8. Heat the ice water.
9. Keep recording the temperature and voltage as temperature increases.
Table 6.2-3 Infrared test 3 with Ice water
Voltage (V)
0.044
0.026
0.014
0.005
0.477
0.483
0.499
0.504
0.51
0.514
0.519
0.525
0.548
0.554
0.56
Temperature (°F)
-66
-63
-63
-47
95
97
100
101
102
103
104
105
107
110
112
6.2-44
6.3.Test humidity by using Extech model 45158 mini thermoanemometers.
Equipment: Voltmeter, thermo-anemometer, heated water source in close room.
(First trial)
1. In this experiment you will need to be measure the output voltage of the humidity sensor. To
measure this voltage the positive terminal of the voltmeter goes to the second pin of U7 and
the negative to ground, see figure.
2. In an enclosed room, turn on the heated water source and let it run.
3. While the water source is running record the humidity on the display screen of the Extech®
sensor, and the voltage.
4. Keep recording until the display has read 100% RH. Next turn off the water and crack open
the door, and record the voltage and humidity until the humidity readings are back to their
initial starting point.
Table 6.3-1 Humidity Test
RH%
74.9
75.2
74.4
73.9
71.7
35.5
34
32.7
69.4
70.3
70
72.5
68.3
Voltage (V)
3.15
3.1
3.09
3.1
3.07
1.94
1.9
1.5
3.02
3.03
3
3
2.89
RH%
69.5
70.3
68.2
66.7
64.5
61.1
65.1
66.1
62.9
60.7
46.6
42.1
37.9
6.3-45
Voltage (V)
3.04
2.99
2.88
2.8
2.79
2.73
2.87
2.77
2.69
2.54
2.25
2.09
1.96
Figure 6.3-1 Voltage vs. Humidity
3.5
3
2.5
2
Series1
1.5
Linear (Series1)
1
y = 0.0327x + 0.6814
R² = 0.9725
0.5
0
0
20
40
60
Table 6.3-2 Humidity Trail 2
RH%
85.5
90
91.5
91.9
100
92.3
89.3
84.5
80.6
80.3
79.9
78.8
74
71.2
69.9
68.8
68.9
Voltage (V)
3.54
3.66
3.69
3.62
3.96
3.65
3.54
3.36
3.26
3.29
3.25
3.22
3.1
3
2.94
2.96
2.92
6.3-46
80
Figure 6.3-2 Voltage vs. Humidity
Voltage
Voltage vs. Humidity
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
Voltage
Linear (Voltage)
y = 0.0324x + 0.684
R² = 0.9831
0
20
40
60
80
Humidity
6.3-47
100
120
6.4.Code
//
//
This is the main program for the remote temperature sensor unit
Team 61 - ECE 495D - 2011-11-28
#include <msp430f5529.h>
// Specific device
#include <in430.h>
// Intrinsic functions
//---------------------------------------------------------------------void main (void)
{
WDTCTL = WDTPW | WDTHOLD;
// Stop watchdog timer
TACCR0 = 49999;
// Upper Limit for count
TACCTL0 = CCIE;
// Enable interrupts on Compare 0
TACTL = MC_1|ID_3|TASSEL_2|TACLR;
// Set up and start Timer A
__enable_interrupt();
for (;;) {
// Loop forever
__low_power_mode_3();
// Remain in LPM3 until interrupt
}
}
//Interrupt service routine for Timer A channel 0
#pragma vector = TIMERA0_VECTOR
__interrupt void TA0_ISR (void)
{
GetTemp(Temp);
// Get temperature from sensor
SendTemp(Temp);
// Send temperature data to main unit
}
6.4-48
/*---------------------------------------------------------------------------*/
/* in430.h
*/
- Intrinsic function prototypes and convenience mapping
/*
*/
macros for migrating code from the IAR platform.
/*
*/
/*
*/
Ver | dd mmm yyyy | Who
| Description of changes
/* =====|=============|======|=============================================
*/
/*
*/
0.01| 06 Apr 2004 | A.D. | First Prototype
/*
*/
0.02| 22 Jun 2004 | A.D. | File reformatted
/*
*/
/*---------------------------------------------------------------------------*/
#ifndef __IN430_H
#define __IN430_H
/*---------------------------------------------------------------------------*/
/* COMPILER INTRINSIC FUNCTIONS
*/
/*---------------------------------------------------------------------------*/
void _enable_interrupts(void);
void _disable_interrupts(void);
unsigned short _bic_SR_register(unsigned short mask);
6.4-49
unsigned short _bic_SR_register_on_exit(unsigned short mask);
unsigned short _bis_SR_register(unsigned short mask);
unsigned short _bis_SR_register_on_exit(unsigned short mask);
unsigned short _get_SR_register(void);
unsigned short _get_SR_register_on_exit(void);
unsigned short _swap_bytes(unsigned short src);
void _nop(void);
void _never_executed(void);
/*---------------------------------------------------------------------------*/
/* INTRINSIC MAPPING FOR IAR V1.XX
*/
/*---------------------------------------------------------------------------*/
#define _EINT()
_enable_interrupts()
#define _DINT()
_disable_interrupts()
#define _BIC_SR(x)
_bic_SR_register(x)
#define _BIC_SR_IRQ(x)
_bic_SR_register_on_exit(x)
#define _BIS_SR(x)
_bis_SR_register(x)
#define _BIS_SR_IRQ(x)
_bis_SR_register_on_exit(x)
#define _SWAP_BYTES(x)
_swap_bytes(x)
#define _NOP()
_nop()
/*---------------------------------------------------------------------------*/
/* INTRINSIC MAPPING FOR IAR V2.XX/V3.XX
*/
/*---------------------------------------------------------------------------*/
6.4-50
#define __enable_interrupt()
_enable_interrupts()
#define __disable_interrupt()
_disable_interrupts()
#define __bic_SR_register(x)
_bic_SR_register(x)
#define __bic_SR_register_on_exit(x)
_bic_SR_register_on_exit(x)
#define __bis_SR_register(x)
_bis_SR_register(x)
#define __bis_SR_register_on_exit(x)
_bis_SR_register_on_exit(x)
#define __get_SR_register()
_get_SR_register()
#define __get_SR_register_on_exit()
_get_SR_register_on_exit()
#define __swap_bytes(x)
_swap_bytes(x)
#define __no_operation()
_nop()
#endif /* __IN430_H */
6.4-51