| 1. | In the system , the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector , public telephone line serves as the second signal tunnel between substation and management center computer . as a breakthrough of conventional concept of electricity meter , this thesis initiate a new concept , namely , intelligent power customer terminal ( shortly , customer terminal ) , which is developed with spread spectrum plc communication functional and possesses many advanced functions , such as , in addition to electric energy acquisition , guarding against electricity pilfering , preventing wrong connection , protecting malfunction , remote communication ( for example , remote power supply or halt , remote configuration of electricity meter , remote load control , etc ) , and so on
本文首先系统地总结了目前国内外低压电力网数据传输技术的研究现状和存在的问题，在此基础上，从理论上论证了在低压电网上应用扩频载波数据通信技术的可行性和优越性，并重点论述了扩频载波技术抗电力线噪声干扰的机埋；本文提出了一个新颖的基于低压电力线扩频载波通信技术的集中远抄系统的总体方案，即由用户终端、集中器和电能管理系统所组成的网络系统，其中，用户终端到配变集中器用低压电力线作为信道，中间无需其他硬件中继设备，集中器到电能管理系统用公用电话网作为信道。 |
