中文摘要：

节能降耗是当前社会热点。针对当前能耗监控系统单用户应用、安装维护复杂的问题，综合应用计算机开发技术、嵌入式开发技术、电力载波通信技术、电能量计量技术等设计一套多租户能耗监控系统。系统实现了多企业多用电点能源消耗量的采集、存储、统计分析、信息发布、预警和远程控制功能。系统分为采集、集中器和服务器三层，描述了采集层和集中器层的硬件设计，并对集中器和服务器层的软件系统进行了设计。提出了一种集中器层“洪泛、分簇、分时段”的改进路由策略，实现了能耗信息的低成本传输。

英文摘要：

Energy saving is the focus in current society. Existing energy consumption monitoring system serves single user, its installation and maintenance is complicated as well. Aiming at this situation, we design a muhi-tenant energy consumption monitoring system by comprehensively applying the technologies of computer development, embedded development, electric power carrier communication and electric energy metering, etc. The system realises the functions of energy consumption acquisition, storage, statistical analysis, information release, early warning and remote control for multi-enterprise and multiple power-spots. The system is divided into three layers： the acquisition layer, the concentrator layer and the server layer. In the paper we describe the hardware design of acquisition layer and concentrator layer, and design the software system for concentrator layer and server layer. We also present an improved routing policy, “＇ flooding, clustering, sub-period”, for concentrator layer, which achieves low-cost transmission of energy consumption information.