抽油井无线传感器网络太阳能示功仪硬件设计

针对当前抽油井示功仪普遍存在的充电维护费用高、网络接入功能弱化等问题,基于太阳能技术、Zig Bee无线自组网技术、双轴加速度传感器和应变式压力传感器,设计实现了新一代一体化太阳能示功仪.详细介绍了示功仪各单元的硬件组成与实现,并构建了面向抽油井工况监测的无线传感器网络。在长庆油田部署了7个示功仪节点、7个无线压力传感器节点和1个多协议网关进行现场测试并试运行。结果表明:示功仪对游梁式抽油机位移测量的最大误差为0.09m,太阳能支持节点连续7个阴雨天正常工作,实测示功图符合抽油井工况实际。

Hardware design of solar energy indicator in pump well WSNs

To solve the problem of pump well indicators such as high charging maintenance costs,weak network access function,and so on,a new generation integrated solar energy indicator is designed and implemented based on solar energy,Zig Bee wireless self-organized network,two-axes accelerometer and strain-type pressure transducer technologies.This work presents in detail the hardware composition and implementation of each unit in the indicator.A pump well wireless sensor networks(WSNs)is constructed for working state monitoring.In order to test the indicator and system,seven indicator nodes,seven wireless pressure sensor nodes and one multiple-protocol gateway are deployed in Changqing oilfield.Experimental results show that the maximal measurement error of displacement for beam pumper is 0.09m.The nodes can work well in seven consecutive rainy days under the support of solar energy.The measured indicator diagrams meet the pump’s actual working state well.