基于无线传感器节点位置的节能季节性情绪失调监控系统

An Energy-Efficient Seasonal Affective Disorder Monitoring System Based on the Location of Wireless Sensor

季节性情绪失调是高纬度地区的常见疾病,发病原因与个体接受光照的强度与时间有光。本文介绍了季节性情绪失调监控系统的原型设计,并在原型系统的基础上提出了一种基于无线传感器节点位置的节能算法,该算法根据固定式节点和移动式节点的相对位置使固定式传感器适时进入休眠状态,使其工作能耗大幅减少。进入休眠状态的固定式传感器在移动节点靠近时能重新进入工作状态。当通过模拟实验证明,该算法能有效延长无线传感器的工作寿命。

Seasonal affective disorder is a common disease in high latitude area. The cause of this disease is closely related to the illumination intensity and time that an individual is exposed to. This paper introduces the design of the prototype of the Seasonal Affective Disorder Monitoring System. On the foundation of the prototype, this paper proposes an energy-efficient algorithm based on the location of wireless sensor. The stationary wireless sensor goes to sleep at the proper time according to the relative location of mobile nodes. The simulation results demonstrate that the algorithm can effectively prolong the working life of wireless sensor, which outperforms the prototype.