| 引用本文: | 印 华,方 挺,董 冲,胡祥翱.基于 LoRa 的低功耗温度采集传感器系统设计(J/M/D/N,J:杂志，M：书，D：论文，N：报纸).期刊名称,2024，41（1）：53-59 |
| CHEN X. Adap tive slidingmode contr ol for discrete2ti me multi2inputmulti2 out put systems[ J ]. Aut omatica, 2006, 42(6): 4272-435 |
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| 摘要: |
| 针对工业高炉冷却水温监测长期运行、维护成本高问题,设计一种基于 LoRa(Long Range)的远距离低功耗
无线传感器网络系统;系统搭建基于 LoRa 通信水温采集终端的模块能耗计算模型,通过对计算模型分析,提出了
一种基于 LoRa 协议层的时钟同步协议和时分多址联合优化的无线通信策略;该策略利用 LoRa 通信技术完成信息
交互,实现网关与终端节点的高精度时钟同步;网关完成可对无线资源调度,动态分配终端节点的时隙资源,以实
现数据周期性上传,降低数据传输碰撞的概率,并优化无线资源的使用效率;实验表明,该通信策略与 ALOHA 通信
协议相比,显著提高了通信的投递率和能源效率,进一步提高了 LoRa 在网络中的性能,所提出的联合优化的无线
通信策略是有效的。 |
| 关键词: LoRa 无线传感器网络 能耗模型 通信策略 |
| DOI： |
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| Design of Low Power Temperature Acquisition Sensor System Based on LoRa |
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YIN Hua; FANG Ting; DONG Chong; HU Xiangao
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School of Electrical and Information Engineering, Anhui University of Technology, Auhui Maanshan 243000, China
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| Abstract: |
| Aiming at the problem of long-term operation and high maintenance cost of industrial blast furnace cooling water
temperature monitoring a remote low-power wireless sensor network system based on LoRa Long Range was designed.
The system built a module energy consumption calculation model based on LoRa communication water temperature
acquisition terminal. Through the analysis of the calculation model a wireless communication strategy based on the clock
synchronization protocol of LoRa protocol layer and the joint optimization of time division multiple access was proposed.
This strategy used LoRa communication technology to complete information interaction and achieve high-precision clock
synchronization between gateway and terminal node. The gateway completed the scheduling of wireless resources and
dynamically allocated the timeslot resources of terminal nodes so as to realize the periodic upload of data reduce the
probability of data transmission collision and optimize the use efficiency of wireless resources. The experiment showed
that this communication strategy significantly improved the delivery rate and energy efficiency of communication compared
with ALOHA communication protocol and further improved the performance of LoRa in the network. The jointly optimized
wireless communication strategy proposed in this paper is effective. |
| Key words: LoRa wireless sensor network energy consumption model communication strategy |
