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
- 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
Paul Bertrand
Mobile: +33 6 22 45 35 59
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 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