摘要
《2030年前碳达峰行动方案》中明确交通运输绿色低碳行动要求,并提出降低交通基础设施全生命周期能耗和碳排放的具体要求,绿色轨道交通意义重大。轨道交通监测系统中使用大量的传感器设备,受到布线、地理环境等条件限制,传统有线传感器应用受到限制,而基于ZigBee的无线传感器节点通信方式在轨道车辆健康监测和轨下基础设施状态监测领域得到广泛研究和应用。目前无线传感器节点采用电池供电方式,其维保工作量繁重。文章通过对无线传感器节点的组网方式和芯片参数进行梳理,以及对列车振动产生的电能进行仿真分析,从理论上论证利用轨道振动能量为无线传感器节点供电的可行性,并说明俘能发电在轨道交通中的意义。
In the Action Plan for Peaking Carbon by 2030,the green and low-carbon action requirements for transportation is clarified,and specific requirements for reducing energy consumption and carbon emissions in the whole life cycle of transportation infrastructure is presented.Railway transportation is one of the core modes of transportation,so green railway is of great signifi cance to green transportation.Railway monitoring systems use a large number of sensors,which are limited by wiring,geographical environment and other conditions,the application of traditional wired sensor is limited.The wireless sensor node communication method based on ZigBee has been widely studied and applied in the field of rail vehicle health monitoring and rail infrastructure status monitoring.Current wireless sensor nodes adopt battery power supply;this design results in heavy maintenance workload.The feasibility of using track vibration energy to power wireless sensor nodes is proved theoretically by sorting out the networking mode and chip parameters of wireless sensor nodes,as well as the simulation analysis of electric energy generated by train vibration,and the significance of energy harvesting in green transportation is illustrated.
出处
《现代城市轨道交通》
2022年第8期23-26,共4页
Modern Urban Transit
