无线自组网节点极低基础功耗方案的设计

Design of extreme low fundamental power scheme for wireless Ad Hoc Networks

无线自组网用于民用计量领域面临着许多极其苛刻的挑战,其中电池供电的节点必须能够维持10年以上的寿命。通过对现有的开源IOT操作系统分析,本文提出了一种极低基础功耗方案的设计,即在内核中创建一个软时钟,用于控制操作系统的时钟运行,以此降低功耗。该方案表明,CC1310节点在contiki上非活跃期间的平均电流不超过2.5uA,且可在不同的硬件平台上移植。

Wireless ad hoc networks are faced with many extreme challenges in the field of civil metrology,where battery-powerednodes must be able to sustain for more than 10 years.Through the analysis of the existing open source IOT operating systems,thispaper presents a very low basic power scheme design,which creates a soft timer in the kernel to control operating systems’ clocks,in order to reduce power consumption.The scheme shows that the average current of CC1310 node is no more than 2.4uA duringinactivity on contiki operating system, and the proposed scheme can be ported on different hardware platforms.