Qualtech Systems, Inc. TEAMS ITE Building Past ECE Teams - - PowerPoint PPT Presentation

Team 183 Jared Farley (EE) Thomas Felekey (CMP) Rondique Mclean (EE) Robert Zaborowski (EE) Advisor: John Chandy Sponsor: Qualtech Systems, Inc.

• Qualtech Systems, Inc.
• TEAMS
• ITE Building
• Past ECE Teams
• Progress
• Objectives

• East Hartford, CT
• Founded in 1993
• Krishna Pattipati
• Maintenance programs with guided

troubleshooting

• Projects for NASA and U.S military
• TEAMS

• Testability Engineering and Maintenance

System

• Multiple Components
• TEAMS Designer
• TEAMS RDS (Remote Diagnostic Server)
• TEAMS RT (“Real-Time” Data Collection)

TEA EAMS De Designer

• Creates a model of a

system

• Includes components

with respective test points

• Can be used to model a

complex system

TEA EAMS RDS DS

• Online Server that connects all components
• Decides which component is most Likely

failing

• Provides Possible Solutions during Manual

Maintenance

• Stores information for future analyses

TEA EAMS RT

• Provides diagnostics in Real-Time
• Connects developed code with generated

sensor values to TEAMS RDS

• Allow for constant connection

• HVAC system located in

penthouse

• Split into two subsystems
• Cold water and steam pumped

from basement

• Multiple sensors on each floor
• Sensor values sent to facilities

• 2 years, 2 different teams
• TEAMS Designer model created
• Ran out of time processing facilities data

Get t th the Da Data ta

• Created a web browser

for java to access the website

• Wrote form to access

and send to website to automatically send data to our program to parse

Get t th the Da Data ta

• Data of sensor values from the facilities

website is in an excel file

• Our program downloads the excel file into the

downloads folder every 5 minutes

Video

Reas Reason

• ns f

for S

• r Selen

eleniu ium

• Logging in with java script
• The problems involved with trying to enter a

form in java script

• Easy to emulate the browser so that coding in

java script is not needed

Generate te Text t Results ts

• Wrote the data array from

the excel file to text file

• The text file is then

inputted into Java

• The sensor values become

available for error detection

• perations

• Do error detection using the

data recieved from the website to determine if there is a fault in the system or not

• Use “for loop” to go over data

array

• Data can then be manipulated

inside of “for loop”

• Error detection must have a Boolean output

as TEAMS operates with true/false questions

• Simple error testing
• Checking if the derivative of temperature is

changing too fast

• The testing must be done inside the Dynamic

Link Library (DLL) in Java

• TEAMS is in C++
• We need bridge from Java to C++
• Java Native Access (JNA)
• DLL
• Java Code
• C++ Code

} How can we talk to TEAMS RT if

it cant understand Java?

} JNA uses the proxy pattern to


hide the complexity of native code integration. It provides a
 factory method that Java programs use to obtain a proxy

• bject for a DLL. The programs

can then invoke the DLL's functions by calling
 corresponding methods of the proxy object.

DL DLL (Dy Dynamic Link Library)

• How can we talk to TEAMS RT if it

cant understand Java?

• JNA uses the proxy pattern to


hide the complexity of native code integration

• It provides a


factory method that Java programs use to obtain a proxy object for a DLL

• The programs can then invoke the

DLL's functions by calling
 corresponding methods of the proxy

• bject

Ja Java Nati tive Access

• API that provides access to native shared

libraries using only Java code

• No boilerplate or glue code necessary
• Supplies a way to call C++ functions from

Java program

• Easier to use than Java Native Interface

Ap Apache ache POI POI

• API that provides Java libraries for reading

and writing Microsoft Office file formats

• Allows us to extract data from the website-

generated Excel file

• Allows us to write our test results to a text

file

• Debug TEAMS RT

connection

• Add more error

detecting operations

• Add more sensing

elements under detection

Any Questions?