1.
Introduction
Rob McHugh introduced himself and introductions continued around the
table (a list of participants is attached). Rob thanked Dave Phelps and Wendii
Vailes for arranging the APTA 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. 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-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
Initiating diagnostics were discussed and the potential should be
addressed under sub-paragraphs:
Transfer of Control from Initiator
-Train Operator
-Wayside
Self Initialization
-safety issues need to be
reconciled
The structure of the MDS as
presented in the tables at the beginning of section 4.0 in the draft standard
were discussed with the general consensus being that they should be
restructured on a functional basis as opposed to a hardware module basis. This
would recognize the distribution of MDS functionality across vehicle
sub-systems while providing a top level focus to the MDS structure.
To aid in categorization
levels, a matrix will be produced by mid-January. Stephen Bonina and
David Gregson agreed to work on a matrix; Rob McHugh agreed to find an
electronic copy of an old matrix.
The vehicle interface
specifications were discussed with a consensus that they should be re-written
to be more in line with the formats used in IEEE 1475 which deals with generic
input and output interface structures. The protection and isolation aspects
were also discussed although these are apparently the subjects of a different
committee.
The format of the operators
displays and the Bombardier document
currently available on the web were discussed. In many systems the TOD
forms an integral part of the MDS; screen formats and standards can be included
to the extent WG3 can support. The
software quality standards are currently under review by WG12 and should only
be referenced in this document.
Software issues such as user configurability,
programmability of the MDS, etc. do need to be considered but should be
referenced to WG11 or an industrial PLC programming standard such as IEC 61131
Data logging and retrieval
issues such as media, formats, post-processing should also be discussed and
possibly included in the standard.
Power supply inputs should be
as per WG13.
4.0 Coordination with other Working Groups
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.
5.0 Next Meeting
NYCT or CTA for mid Feb.; subject to confirmation. Rob will
coordinate with WG9 to have a joint session.