Abstract: This paper proposes a low-power data distribution system based on data distribution services, which balances performance and power consumption by adding a sleep wake-up mechanism to the service. In addition, the system is also connected to the NB-IoT narrowband Internet of Things, which can better reduce the power consumption of the device when a small amount of data is exchanged. Experiments have proved that when the monitoring equipment communicates in a network with limited bandwidth, the use of this system can save about 36% of the power consumption compared with that of the traditional communication system while ensuring the communication performance. In the case of data interaction within the order of 150 Byte, the system uses NB-IoT to replace the bandwidth-constrained network for communication, and the power consumption can be saved by about 48%.

Key words: data distribution services, internet of things, lower-power

摘要： 提出基于数据分发服务的低功耗数据分发系统，通过在服务中加入睡眠唤醒机制来平衡性能和功耗。系统接入NB-IoT窄带物联网，能够在少量数据交互时，更好的降低设备功耗。实验证明，监测设备在带宽受限的网络下通信时，使用此系统可以在保证通信性能的同时，比传统通信系统节省36%的功耗。在数量级为150 Byte以内的数据交互时，系统使用NB-IoT代替带宽受限的网络进行通信所节省的功耗可以达到48%。

关键词: 数据分发, 物联网, 低功耗