q**i
发帖数: 174 | 1 it is not only possible, it has been done.
there are "smart meters" on the market that can send back
electrocity usage readings via power lines, for eample.
there are also start-ups trying to deliver information to
your house via power lines: there is really no need
to have three different "lines" - power, phone and cable.
if you can combine them into one, that would be a huge
opportunity.
Going back to your original question, the difficulty (or
one of them) is that the sigal doesn't pass transf | a**a
发帖数: 18 | 2 I guess bandwidth is also a big problem here. 3-4 khz is probally the limit, depends
on the power transmission line.
【在 q**i 的大作中提到】
: it is not only possible, it has been done.
: there are "smart meters" on the market that can send back
: electrocity usage readings via power lines, for eample.
: there are also start-ups trying to deliver information to
: your house via power lines: there is really no need
: to have three different "lines" - power, phone and cable.
: if you can combine them into one, that would be a huge
: opportunity.
: Going back to your original question, the difficulty (or
: one of them) is that the sigal doesn't pass transf
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