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引用次数: 10
摘要
本文介绍了在一种新型单片机上实现窄带电力线通信(PLC)的完整节点。该芯片名为ADD1000,包括一个8051微控制器,一个为介质访问控制(MAC)任务设计的14位增强型UART和一个PLC调制解调器电路。这项工作是基于以前的设计(A. Sanz et al., 2001) (J.I. Garcia Nicolas et al., 2000),但引入了一些关键的改进。低功耗模式和其他升级都内置在微控制器中。此外,MAC经过修改,不仅支持欧洲家庭系统规范(EHS)的电力线介质(1997),而且还支持KONNEX (KNX) (2000), IEC 61334, HTTP和TCP/IP。PLC调制解调器改为使用带通转换器。最后利用芯片的MAC和调制解调器开发了一个支持HTTP和TCP/IP协议的软件层。使用该软层,任何使用ADD1000芯片的设备都可以作为TCP/IP PLC网络的嵌入式Web服务器。
A complete node for power line communications in a single chip
This paper describes the implementation of a complete node for narrow band power line communications (PLC) in a new single chip. This chip, named ADD1000, includes an 8051 microcontroller, a 14 bit enhanced UART designed for the medium access control (MAC) tasks and a modem circuit for PLC. This work is based in previous designs (A. Sanz et al., 2001) (J.I. Garcia Nicolas et al., 2000) but introduces some key improvements. Low power modes, and other upgrades, are built in the micro-controller. Also, the MAC is modified in order to support, not only the European Home Systems specifications (EHS) for the power line medium (1997), but also KONNEX (KNX) (2000), IEC 61334, HTTP and TCP/IP. The PLC modem is changed to use band pass converters. Finally a software layer has been developed to support the HTTP and TCP/IP using the MAC and modem of chip. Using this soft layer any device using the ADD1000 chip can be an embedded Web server of a TCP/IP PLC network.