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My apologies for not making it more prominent. I believe after
the first pass eliminations, it will be one of the survivors for farther presentation
and discussion. From: Paul Bertrand
[mailto:p.bertrand@xxxxxxxxxxx] Bob, For some reason My proposition on Powerline communication
technologies was not included in the initial potential goals document. I believe that Low Power Powerline communication seems
to be perfectly fitted for our project, . As I noted that anti-spam software
may have limited the diffusion of my previous mails on that matter I resend the
text already sent. Sorry for the possible unnecessary repetition. These are the important key factors for a Powerline system
: - Low Power
consumption - Small size - Data rate - Low cost -
Robustness - Frequency
band and EMC -The Power consumption of a Powerline modem is the most
important feature because a high consumption modem will lead to additional
power supply, heat, extra cost, and unacceptable size. The best case is when
the Powerline modem can use the existing power supply with no form factor
changes. Today I now at least one technology (based on pulse modulation from
Watteco) with less than 20mW of consumption for a full low rate modem. - The size will limit applications. In our case the smallest
size is required to fit in wall plug or to be embedded in a mobile unit.
Ideally a single PHY/MAC component is required. - Data rate is usually not a problem for Command&Control
applications and 10 kb/s is largely enough. - Low Cost. Of course this a natural requirement. A target
would be << 1$ for a full modem. - Robustness is always required. But in our case it should
not be a problem as the communication link is on the DC part of the supply. - EMC depends on the frequency band used for communication.
There are different types of bands with different regulation: - CENELEC
EN 50065-1 band for Narrow band applications under 140 KHz. This standard
is used mainly in Europe for metering applications - FCC part 15
up to 500 KHz. Only in the US - 2-4
MHz. Low Rate Wide Band Services (LRWBS) for Home Area Network applications
(CISPR 22 and IEEE 1901 coexistence) -
2-30MHz band for Broad Band high rate video applications (out of scope
here) These key factors correspond to existing technologies and
would not add any delay to this group. I would be happy to contribute in a more
detailed proposition during the next meeting of the group. I would appreciate if you could include these inputs
in the Powerline technologies section. Best regards Le 11 juil. 2010 à 07:39, Bob Davis a écrit :
UPAMD, Attached
is the initial potential goals document updated with the input received through
the reflector. Please check to make sure that your proposal(s) was
included in some manner. If it was not, I missed it, please try again.
Some of the input, like a symmetrical detachable cable, open up large range of
usage, and flexibility, at the cost of mostly(?) control software. Please
keep up the good work. The
reflector is now archived at http://grouper.ieee.org/groups/msc/upamd/email .
The
unapproved minutes from the teleconference meeting are also attached.
Please provide feed-back on any missing/inaccurate items. This duty will
be turned over the Secretary at the next meeting. Thank you Eugene. I
have moved most of the material sent with respect to the European and US power
standards into the private area of the website. Username = P1823 Passwd =
UPA4mobile. Please, PLEASE, do not distribute the username/passwd beyond this
working group as this is where the drafts will be kept and they must be in a
restricted access area. Because of the nature of this group and the fact
that we cannot all be on a given call or in the same meeting room, I need to
distribute them in this manner. Please
respond to the email ballots. Bob
Davis Acting
Chair UPAMD Chair
MSC 408-857-1273
cell/408-353-5990 desk <UPAMD_Unapproved_minutes_20100706.pdf><UPAMDGoals20100710.pdf> Paul Bertrand, Le 11 juil. 2010 à 07:39, Bob Davis a écrit :
UPAMD, Attached
is the initial potential goals document updated with the input received through
the reflector. Please check to make sure that your proposal(s) was
included in some manner. If it was not, I missed it, please try again.
Some of the input, like a symmetrical detachable cable, open up large range of
usage, and flexibility, at the cost of mostly(?) control software. Please
keep up the good work. The
reflector is now archived at http://grouper.ieee.org/groups/msc/upamd/email . The
unapproved minutes from the teleconference meeting are also attached.
Please provide feed-back on any missing/inaccurate items. This duty will
be turned over the Secretary at the next meeting. Thank you Eugene. I
have moved most of the material sent with respect to the European and US power
standards into the private area of the website. Username = P1823 Passwd =
UPA4mobile. Please, PLEASE, do not distribute the username/passwd beyond this
working group as this is where the drafts will be kept and they must be in a restricted
access area. Because of the nature of this group and the fact that we
cannot all be on a given call or in the same meeting room, I need to distribute
them in this manner. Please
respond to the email ballots. Bob
Davis Acting
Chair UPAMD Chair
MSC 408-857-1273
cell/408-353-5990 desk <UPAMD_Unapproved_minutes_20100706.pdf><UPAMDGoals20100710.pdf> |