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通过LoRa通过空中更新固件更新:单播和广播组合,以提高更新速度
Victor Malumbres1, Jose Saldana1, Gonzalo Berné1
1CIRCE Technology Center, Avenida Ranillas, 50018 Zaragoza, Spain.
Sensors (Basel, Switzerland)
|April 13, 2024
概括
物联网 (IoT) 设备的固件更新可以通过无线方式 (Over The Air,OTA) 进行优化. 结合单播和广播方法,可以显著减少工业物联网系统的更新时间,特别是许多节点.
科学领域:
- 电气工程 电气工程
- 计算机科学 计算机科学
- 嵌入式系统 嵌入式系统
背景情况:
- 固件更新对于物联网 (IoT) 设备生命周期管理至关重要.
- 在像ATEX区域这样具有挑战性的环境中更新设备需要强大的无线解决方案.
- 现有的方法可能无法有效地解决大规模部署的时间限制.
研究的目的:
- 为了确定低端物联网节点的最佳无线 (Over The Air,OTA) 固件更新策略.
- 尽量减少在潜在爆炸性环境中的智能照明系统的总项目更新时间.
- 分析和比较结合单播和广播通信的方法,以实现高效的固件交付.
主要方法:
- 对三种不同的单播和广播传输组合的分析性探索.
- 广泛的模拟不同场景大小,固件块大小,节点数和广播轮.
- 拟议的以广播为中心的方法的硬件实施和实验室实验.
主要成果:
- 固件更新时间的显著减少是可以实现的,对于许多节点来说,最多是两次数量级.
- 广播方法由于恒定的传输速率提供了优势,特别是对于许多设备.
- 监管的空中时间消耗限制会影响整体更新时间.
结论:
- 更新方法的选择对物联网部署的项目完成时间产生了重大影响.
- 基于广播的策略对于大规模的物联网固件更新非常有效,性能优于unicast.
- 在各个节点保持相同的固件版本对于高效的广播更新控制至关重要.
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