With the integration of 3G Network and Wireless Sensor Network, the Internet of Things is considered to be one of the most important technologies of the new century. For the Internet of Things, how to extend the working time of sensor nodes is the core problem. At present, there are two speciifcations of power management:APM (Advanced Power Management) and ACPI (Advanced Conifguration and Power Interface) which are designed for PC. Due to their complexity and the requirements for BIOS layer, these two methods are not applicable to wireless sensor node. In this paper, the signal-slot framework was developed ifrstly. Secondly, based on signal-slot framework, a simple and effective power management scheme-SPM (simple power management) was designed and applied in the popular sensor node operating system Contiki.%随着传感网络和3G 网络的融合，物联网已经成为新世纪最重要的技术之一，如何延长传感节点的工作时间已成为物联网研究的一个重要课题。传统的电源管理规范如 APM(Advanced Power Management)和ACPI(Advanced Configuration and Power Interface)主要针对PC设计，因其复杂性和对BIOS层要求等因素，在无线传感节点中并不适用。为了解决此问题，针对传感节点计算和存储能力有限的特点，我们首先开发了精简的signal-slot框架，基于signal-slot框架，并设计了简单有效的电源管理方案SPM(Simple Power Management)，并将SPM在流行的传感节点操作系统Contiki中实现。
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