神马文学网Questions about PLC
来源：百度文库 编辑：神马文学网 时间：2024/05/04 07:32:16
Questions about PLC
1. We’ve learnd from your PLC introduction that it do not use a carrier, but a pulse-stream. this is an unique way from others, would you give an explanation about it’s basic principles? How the wide baseband digital signals can be transmitted over the PL tine varying channels?
2. I’m sure your PLC scheme is a special one In deed , especially the modulation method, but I wonder it’s basic concepts and main point. Please make a brief description .
3. I think the 100 ohm of input impedance is referred to single phase PL, and is not a pure resistance. The question is what about reactance ,it is capacitance (1/ωC) or inductance (ωL), or both and depanding on some parameters?
4. As well known, PL is distributed with three phase line and one ground line in houses and offices. How the communications between different single phase lines can be performed?
5. In addition, I wonder how can your PLC system is implemented to solve varies areas with different transformers?
6. It is very important that PLC do not generate any audio and vidio frequency signals that interfere electric equipment installed in buildings. What the measures can be used to solves this problem?