Presentation File - MWFTR

yakzephyrAI and Robotics

Nov 24, 2013 (3 years and 6 months ago)

84 views

F2E

Convert On Demand

Team Members:

Damola

Alabi

Andrew Hillocks

Montaque

Jones

Jasmine Little




Background


Modern radar systems utilize digital signal
processing. The radar receivers contain high
speed A/D converters at the end of the analog
signal path. The digital data is transmitted by fiber
to the signal processor. Data rates on these signal
paths are extremely high (6+ Gb/sec
).




Northrop Grumman
would prefer

to
not use expensive MIL
-
SPEC

hardware
simply to test receivers

in
the factory.


Problem


We need to build a test receiver system that can
handle data at high rates but is more cost
effective than the expensive MIL
-
SPEC hardware
that is in use
.



In
a nutshell, we need to build a cost effective
system that will help Northrop Grumman
test
receivers in the factory
.



The main question asked is:


How can we design and test this on demand
converter


Design Requirements


Overall
Function:


The
unit should
receive
data, convert it back
into 32 bit words, buffer a
large quantity
of these
words, and then upon request transfer the block
over a
lan

interface to a requesting computer.


The data comes in as serial data encoded in the
Xilinx Aurora 64B/66B protocol.


Real time conversion from fiber to
lan

is not
required
.



Compliance


IEEE
electrical
standard 802.3


Fibre

channel physical and signaling standard


ANSI X3.230
-
1994


ISO 14165
-
1



Aurora Interface


Aurora is a scalable, lightweight, link
-
layer
protocol that is used to move data across
point
-
to
-
point serial links.


It
is an open protocol and is free of
charge.

Why use the Aurora?


V
ery
efficient low
-
latency protocol that
uses the least possible amount of
logic


Aurora
increases bandwidth through
bonded lanes.


Aurora
also requires little time to integrate
in to existing user designs.

Current Status of Art


Currently there are no commercial
products that have the ability to do on
demand conversations.



The only products available are MIL
-
SPEC
hardware. This hardware is very expensive
and is not for commercial sale.

Initial Solution Approach


The basic operational concept


1.
External controller commands box to acquire X words
(commands come over the
lan

interface)

2.
Box acquires data on fiber interface and buffers in
memory.

3.
Box reports completion (or is polled by controller).

4.
External controller requests data acquired be
transferred over
lan

(FTP or other standard TCP
protocol required).

5.
Box transfers data

6.
Box awaits next command.



Hardware diagram

RabbitCore

RCM 2100


Design Advantages


5

V
design


10Base
-
T
Ethernet on
-
board


Plug
-
in design



Applications


Embedded Control


Process
Control


Test
and Measurement

Tasks/Duties


Since we
are dealing with Ethernet and fiber optic
cables we divided the research up:


Montaque

and Jasmine will focus on the Ethernet
portion of the project


Damola

and Andrew will handle fiber optics
portion of the project.




Even though research on each side is done
separately we still we all will have a full
understanding of both fiber optics and Ethernet.
From the knowledge and information we
gathered, we will then collaborate and be able to
form a solution to the problem statement
.


Timeline

Milestone

Scheduled Date

Initial Proposal : Version I

October 12, 2011

Initial Proposal Presentation

October
19,
2011

Written Proposals: Version II

October 19, 2011

Second Proposal Presentation

November

2, 2011

Proposal Presentation

November

9, 2001

Evaluation/Selection of Design

November

2011

Finalize Design

November

2011

Ordering of components/Parts

December

2011

Project
prototype

January

2012

Project Presentation

April 2012

Cost and Resources

Item

Unit Cost ($)

Quantity

Cost ($)

RabbitCore

RCM

2100 kit

280

1

280

Fiber to Ethernet Converter

150

1

150

Aurora Interface

Kit

60

1

60

Cables

20

2

40

Miscellaneous





150

Total Cost





680


Below we have provided a tentative budget chart to help us
visualize what is needed physically and monetarily to go
forward with the project.


Conclusion


Our team will design and create an on demand
converter
.



The box we develop will take
in one fiber
interface, converts it to
copper, buffer
it in local
memory, and ultimately
make
it available to the
test system through a
lan

interface.


Questions