摘要
针对基于Zigbee技术的无线抄表系统成本高、抗干扰能力弱、通信距离受限的缺点,提出了一种扩频通信与GSM技术相结合的远程无线抄表系统设计;和低功耗的射频收发芯片sx1278,设计了汇总节点、中继节点以及水表采集节点硬件电路,确定了通信的数据帧结构,制定了相应的组网算法;在抄表区域中采用抗干扰能力强的扩频通信技术进行无线抄表,在远距离通信中采用(GSM技术将汇总的水表数据传送到控制中心,整个抄表系统具有低功耗、抗干扰能力强、自组网特点,能够实现远程控制无线自组织组网抄表;试结果表明,设计的系统能够实现稳定的自组网,具有较高的抄表成功率、较好的性能和广泛的应用前景。
In view of high cost, the weak anti--interference ability and the limited communication distance based on Zigbee wireless me- ter reading system, a set of wireless meter reading system design is proposed eombined with spread spectrum communication and GSM tech- nology in the paper. Design the hardware circuits of summary node, relay node and water meter acquisition node, determine the data frame structure of communication, and formulate the corresponding network algorithm, combined with the low power consumption RF transceiver chip sx1278, the spread spectrum communication technology with strong anti--jamming ahility is used for wireless meter reading in the me- ter reading area, and the GSM technology is applied to transmit the collected meter data to the control center in long distance communication. The whole meter reading system has the advantages of low power consumption, strong anti--jamming capability, characteristics of ad--hoc network and can realize remote control wireless self-organized network meter reading. Experimental results show that the designed system can realize the stable ad-hoe network and has the higher success rate of meter reading, better properties and broader application prospects.
出处
《计算机测量与控制》
2016年第12期237-240,共4页
Computer Measurement &Control
关键词
无线抄表
扩频通信
GSM
组网算法
wireless meter reading
spread speetrum communication
GSM
network algorithm
