WG9 STANDARD P1544
TRANSIT COMMUNICATIONS
INTERFACE PROFILES FOR RAIL APPLICATIONS
Daimler
Chrysler Rail Systems Inc. (Adtranz)
1501 Lebanon Church Road
Pittsburgh, PA 15236-1491
Combined Agenda and Minutes
Attendees:
|
Name |
Company |
Phone |
E-Mail |
|
Dave Phelps |
APTA |
(202) 898-4085 |
|
|
Greg Neff |
Microsym |
(416)
293-8263 |
|
|
Isabelle
Cornelus |
ALSTOM |
(607)
324-4595 ext 4182 |
|
|
Pierre Zuber |
Adtranz |
(412) 655-5479 |
|
|
Fred Woolsey |
LTK |
(215) 641-8865 |
|
|
Mike Barnett |
City of SF |
(415) 554-0896 |
9:00-9:45 AM
·
Introductions,
meeting purpose, general discussion
-
Microsym
is providing the Lon-E1 router for Telephonics on R142/R142A.
-
The
railway supply community in US needs a lot of education on LonMark
interoperability.
-
Microsym
would like to influence IEEE to adopt higher speed networks as standards in
IEEE 1473.
-
Related
to the above, it was agreed that it might be of interest to take another survey
of available networking technologies, in particular for information technology
needs (voice, video, Internet access) on rail vehicles.
9:45-11:00 AM
·
Report
on LonWorld 2000- Greg Neff
-
An
Italian power company (NL) will be hooking up over 30 million consumers over
the power lines using Echelon power line transceiver technology. This will be used for metering and power
demand management. They plan to
implement this in three years and have bought a 30% stake in Echelon. This may tie up Echelon’s resources for
quite some time to come.
-
Microsym
has gotten a hardware/firmware license to do a transit-hardened version of the
Echelon RTR-10 router.
-
Cypress
Semiconductor is working on a higher-speed version of the Neuron (40 MHz). The bit rate on this network would be 5
Mbps.
-
In
Microsym’s opinion, telecom buses (such as T3) hold a good deal of promise for
future high-speed railway network applications.
-
There
was some discussion of opening up WG1 again to re-examine network physical
layers for rail vehicles.
-
Tom
Sullivan’s web site should have links to the Transportation track LonWorld
presentations from LonWorld 2000.
ACTION:
Fred Woolsey to e-mail Tom Sullivan regarding this.
·
Report
on LonMark Transportation Working Group meeting- Greg Neff
-
The
meeting was sparsely attended, per Greg Neff.
-
China
may be looking at WorldFIP for their rail vehicles.
-
Greg
Neff has action to put together the IEEE 1475 profile for LonMark.
·
Report
on RTVISC meeting- Fred Woolsey
-
There
was discussion of the proposed TWC protocol standard and liaison to related AAR
working group, along with discussion of candidates for the WG chair for the TWC
standard.
-
The
use of IEEE 1488 and 1489 in P1544 was discussed. It was agreed that the data elements in IEEE 1544 would be
represented both in their “native” format and in the format prescribed by those
standards.
-
TCN-Lon
gateway implementation.
i)
It
was agreed that this should be raised with ALSTOM in the context of Comet 5.
ACTION:
Fred Woolsey to send Tom McGean’s gateway proposal to Isabelle Cornelus (see
TSD web site).
ACTION:
ALSTOM (Isabelle Cornelus, et. al.) to review proposal for relevance to their
work on Comet 5.
11:00 AM-12:00 PM, 1:00
PM-2:00 PM
·
Discussion
of relationship between IEEE 1544 and UIC 556- Fred Woolsey
-
The
question was raised regarding different operation types (loco hauled, LRV,
etc.) and standardization. It was
agreed that a “one size fits all” that accounts for all possible types of
operation may be wasteful of bandwidth.
-
The
idea of “self-identifying” telegrams that indicate different message content
being transmitted based on class of operation was discussed. This would allow system applications to
interpret network messages differently in different operational contexts based
on identifier information within the message itself.
ACTION:
Fred Woolsey to make draft version of UIC 556 available for reference and use
by the working group on the WG9 FTP site
URL: ftp://wg9user:p1544@ftp.fwsbcon.com
·
Discussion
of trainset inauguration requirements to be added to IEEE 1544
-
It
was agreed to add this to the standard when the time comes.
·
Discussion
(Mike Barnett) of separating the essential characteristics of the data elements
themselves from other attributes that are functional. One reason is that data elements can be “re-used” by different
functional areas.
ACTION:
Fred Woolsey to make database documents, with comment forms and instructions,
available on the web, with date for comments to be returned.
ACTION:
Fred Woolsey to e-mail all with notification that info is on line.
ACTION:
Attendees to review data elements in the following areas:
Doors-
Isabelle Cornelus
Propulsion-
Dave Phelps, Greg Neff, Pierre Zuber
·
Discussion
of possible WG9 subcommittees- Fred Woolsey (Not discussed)
2:00-2:30 PM
·
Discussion
of recent developments in trainline networks- Greg Neff (Microsym)
-
Looking
at point-to-point T3 for T/L networking with a ring topology, possibly
redundant.
-
Packet
tunnel has been developed allowing LonWorks to be sent transparently over a
higher speed network. Delay is up to
about 3 to 4 ms end to end on a 10-car train.
2:30 PM-4:00 PM
·
Review
of Action Item Status
-
WG9
issues tracking- Fred Woolsey Open
ACTION:
Bring discussion group back on line.
Note: The URL for the
discussion group is
http://ieee.fwsbcon.com
User Name: wg9user
Password: p1544
-
Criticality
levels for timeliness- Fred Woolsey Done
-
Confirmation
that database fields are adequate to define data for TCN- Pierre Zuber Open
-
Confirmation
that database fields are adequate to define data for LonWorks- Jeremy Roberts Open
-
Review
form for database comments- Fred Woolsey Done
-
Locomotive
hauled data elements- John Ewing Open
-
Verify
that all applicable IEEE 1475 data elements are accounted for- Dave Phelps, Jim
Lyke Done
-
Revised
project scope for revised PAR- Fred Woolsey Done
·
Review
of revised data element database- Fred Woolsey Done partially; see above
4:00-4:30 PM
·
Wrap-up
·
New
Business None
·
Meeting
Time and Place, next meeting
·
Adjourn