传感器网络是传感器技术、嵌入式计算机技术、分布式信息处理技术、通信技术的集成。它能够协作的实时的监测、感知和采集各种环境或监测对象的信息，并对其进行处理，传给使用这些信息的用户。 本文通过实验，实地测量并分析了低压电力线载波信道的传输特性，并结合传感器网络的数据采集和传输特点，实现了基于低压电力线载波的传感器网络。为电力线通信的其他研究打下基础的低压电力线信道的传输特性测量与分析主要包括电力线传输特性、信道噪声和信道衰减等，并根据信道特征确定载波中心频率；根据以上分析，设计基于低压电力线载波传感器网络的网络结构，解决实际应用中的网络覆盖问题；比较了目前电力线通信中主要调制方式的优缺点，选择FSK调制的扩频技术的通信方式并设计了一种软件扩频方案降低误码率；在理论分析的基础上，以单片机作为微控制单元设计了基于TCC081C和TCS081扩频载波通信芯片的低压电力线扩频载波传感器网络系统，以及通信模块的软硬件设计。在测试与应用部分给出了整个系统的测试结果和电力线载波模块的测试，并给出了本系统在高校节能管理系统中的应用。

Sensor networks are integration of sensor techniques, embedded computer technology, distributed information techniques and communication techniques. they can be used for testing, collecting and processing information of monitored objects and transferring the processed information to users. This article made more overall comprehensive analysis to the electric power line carrier sensor netwoks which is on the basic of the character of transmit data. The characteristic of power line channel which is used to confirm carrier center frequency is discussed from the transmission lines , noise, and channel attenuation in this paper. According to above analysis design network structure based on power line carrier solving the problems of the application of the actual networks cover;By comparing the present main electric communication and the advantages of the modulation method , FSK modulation of spread spectrum technology way of communications is chosen . A software spread spectrum scheme is designed to low the bit error rate;With microprocessor as the control unit, the software and hardware of sensor networks is designed on the basis of TCC081C and TCS081. In the test and application part of the whole system test results and power lines carrier module are given, and gives the system in school administration of energy conservation of the application of the system.