低压电力线载波通信系统设计毕业论文.doc

本科毕业设计(论文)
题目
低压电力线载波通信系统设计
学生姓名
学号
教学院系
专业年级
指导教师
职称
单位
西南石油大学
完成日期
2013年6月5日
Southwest Petroleum University
Graduation Thesis
Design Method OF Low Power Line munication System
Grade:
Name:
Speciality: Automation
Instructor:
School of Electrical and Information
2013-6
摘要
随着现代社会的发展,网络扮演着越来越重要的角色,生产与生活中的大量设备需要连接起来,构成网络,以实现对它们的监测、控制与管理。在这些网络中,需要连接的对象众多,位置可能变动,给网络的构成带来一定的困难。由于这些对象的工作大都离不开电力,所以用低压电力线组成网络进行通信,是一种很有价值的实现方法。
本毕业设计主要实现两点之间通过低压电力线载波通信进行数据传输并通过上位PC进行监控。
本设计基于SENS-01嵌入式电力线载波模块,其硬件部分包括载波耦合电路、信号发送电路(输出功率控制电路和信号功率放大电路)、滤波接收单元(接收滤波电路和解调电路)、电平转换电路等。软件部分包括串口调试和通信程序。
在完成硬件和软件设计之后,测试结果为发送端可以准确、高效的向接收端通过低压电力线发送数据,具有很好的抗干扰性能,可靠性高。
关键词:低压电力线;载波通信;电平转换;串口;SENS-01
Abstract
With the development of modern society, networks play an increasingly important the production and life, a large number of devices need to be connected together to works to monitor, control and manage them. It may bring some difficulties that these devices may have many locations or change position . It is a valuable method to use work of low voltage power munication, because most of these devices cannot work without electricity .
The main problem this graduation design supposed to solve is transmitting data through a low-voltage power line munications between two points and then monitoring it through the host PC.
The design is based on SENS-01, an embedded power line carrier module. The hardware parts of the module include a carrier coupling circuit, a signal transmission circuit (output power-control circuit and the signal power amplification circuit), a filter receiving unit (reception filter circuit and demodulation circuit) and a level conversion circuit. The Software parts include serial debugging munication program.
pletion of the hardware and software design, the sender can send data accurately and efficiently to the receiving end through the low-voltage power lines , which, as the test result, has good anti-jamming performance as well as high reliabil