ip：114.128.112.131
port：1883
uname：scwl_flowmeter
pwd：b123
topic：iot/data/scwlflowmeter

{
“deviceId”:“设备序列号”,
“flow”:“瞬时流量（浮点数）”,
“heatFlow”:“瞬时热流量（浮点数）”,
“fluidSpeed”:“流体速度（浮点数）”,
“fluidSoundSpeed”:“测量流体声速（浮点数）”,
“positiveFlow”:“正累积流量（浮点数）”,
“negativeFlow”:“负累积流量（浮点数）”,
“positiveHeat”:“正累积热量（浮点数）”,
“negativeHeat”:“负累积热量（浮点数）”,
“netFlow”:“净累积流量（浮点数）”,
“netHeat”:“净累积热量（浮点数）”,
“supplyTemp”:“供水温度（浮点数）”,
“returnTemp”:“回水温度（浮点数）”
}