基于MQTT的工业物联网通信系统研究与实现

贾凡,熊刚,朱凤华,田滨,韩双双,陈世超

Research and implementation of industrial Internet of things communication system based on MQTT

Fan JIA,Gang XIONG,Fenghua ZHU,Bin TIAN,Shuangshuang HAN,Shichao CHEN

表3 客户端数量测试数据

客户端数量/个 硬件 QoS 平均传输时延/ms 标准差/ms 最小传输时延/ms 最大传输时延/ms 10 PC QoS 1 81.51 33.66 55.95 164.27 QoS 2 153.33 43.57 115.41 257.25 Raspberry Pi QoS 1 76.57 21.53 58.55 128.22 QoS 2 155.71 62.98 119.83 322.84 50 PC QoS 1 76.82 26.92 54.50 141.97 QoS 2 163.52 48.10 119.04 277.51 Raspberry Pi QoS 1 87.01 35.53 60.23 175.39 QoS 2 179.74 63.67 128.06 329.22 100 PC QoS 1 85.84 33.77 57.54 168.10 QoS 2 174.72 46.31 128.12 278.78 Raspberry Pi QoS 1 99.87 48.47 65.29 224.42 QoS 2 186.12 51.15 141.68 304.80 200 PC QoS 1 89.30 36.42 59.59 177.83 QoS 2 177.25 48.76 129.9 287.28 Raspberry Pi QoS 1 104.20 42.49 70.78 207.86 QoS 2 247.72 113.44 155.16 511.39