1. Introduction
Rob McHugh introduced himself and
introductions continued around the table (a list of participants is attached).
Rob thanked Russ Kology for arranging
the conference room facilities, coffee break snacks AND lunch. Rob reviewed the
levels of membership and urged everyone to participate at the highest level
possible.
2.Review of the
status of the standard
A general discussion regarding the
state of the standard and the directions vehicle monitoring technology is
moving in followed. Scope and Purpose must be retained in their present form
but the standard’s emphasis is up to the group’s discretion. The other related
published standards need to be considered.
WG1-IEEE
1473-1999
Communications Protocols Aboard Trains
WG-5IEEE 1475-1999
Propulsion, Friction Brake & Master
Control
WG?
IEEE 1476-2000
Voltage
Levels
WG-8IEEE 1478-2000
Environmental Standards
WG-9IEEE P1544
Transit Communications Interface
Profiles
WG-11IEEE P16
Controls for Rail
Transit Vehicles
WG12-IEEE P1588
Standard for Software Documentation
WG13-IEEE P1536
Electrical Sizing of
NiCad Batteries
The latest drafts can be accessed from
TSD.org, user name:transit;password:railway.
3.Review of the
section-by-section comments
The
structure of the MDS as presented in the tables at the beginning of section 4.0
in the draft standard was discussed in detail. The table was simplified further
to provide a top-level focus to the MDS structure so that an intimate knowledge
of protocol and bus standards would not be required at this top level. Train
And Vehicle Bus definitions can be lifted from 1473 Fig 1. The detailed
examples in the next section will elaborate the use of the matrix.
The
matrix along with some supporting detailed examples can be scheduled for
presentation to the next full committee in June.
David Gregson agreed to work on examples; Rob McHugh
agreed to distribute an electronic copy of the matrix. Tom McGean will check
the agenda to see if 1-2 hours are available for this presentation.
Russ
Kology presented MNR’s data logging, retrieval and post-processing formats.
Data logging and retrieval issues such as media, formats, post-processing are
important issues and should be addressed in the standard.
Russ Kology can supply examples from the MNR experience.
4.0 Coordination
with other Working Groups
Rob attended the APTA Vehicle Inspection and Maintenance (VIM) Committee meeting in Seattle on Apr.5. VIM presented some high level M&DS Wide Area Network system architecture. The attached presentation, Introduction to American Public Transportation Association Rail Transit Standards Development Program, gives a high level overview. The active VIM standards development web page is private; if you are interested in joining, contact APTA.
A reminder that
data collected by the M&DS can be stand-alone but integration into a WAN
for post processing will provide maximum benefit.
WG3 will have an
informative annex of data elements, which will be passed on to WG9 to
formalize.
Reliability issues should be
referenced to appropriate standards, but resets may be initially linked to a
minimum equipment list from a reliability analysis.
5.0 Next Meeting
Rob will investigate possible Philadelphia June 7,8;
Seattle/San Francisco June 25 or 26.