面向车辆环境的WSN能效优化

面向车辆环境的WSN组网可有效降低现有汽车有线连接的布线复杂度和提高车辆集成效率。车载有线网络升级为无线互联的过程中,模块节点的供电是个问题,为解决这个问题,节能必不可少,而且节能和环保也是绿色新能源汽车的发展趋势。为此,面向不同业务类型的传输速率需求,首先提出了基于WSN的车载多制式无线组网方案,实现车内数据的无线采集和传输;然后基于Atmel开发平台,提出了基于节点睡眠唤醒的节能机制;最后设计了多节点能耗测试方案,验证了所提节能机制的有效性。实验结果表明,所提节能机制可使网络节点具有较低的功耗,有效延长了节点的生命周期。

Research on WSN Energy Efficiency for Vehicle Environment

Facing the transmission rate requirements of different business types,this paper firstly proposes a vehicle-mounted multi-mode wireless networking scheme based on WSN to realize wireless data collection and transmission inside the vehicle.Then,based on the Atmel development platform,the energy saving mechanism of node-based sleep awakening is proposed.Finally,a multi-node energy consumption test scheme is designed to verify the effectiveness of the proposed energy saving mechanism.The experimental results show that the proposed energy-saving mechanism can reduce the power consumption of network nodes and effectively prolong the life cycle of nodes.