diff --git a/apps/iot/src/iot_host.erl b/apps/iot/src/iot_host.erl
index 560ba57..add9f7a 100644
--- a/apps/iot/src/iot_host.erl
+++ b/apps/iot/src/iot_host.erl
@@ -257,14 +257,10 @@ handle_event(cast, {handle, {data, Data}}, session, State = #state{uuid = UUID,
             end,
 
             %% 数据写入influxdb
-            NTags = case maps:is_key(<<"device_uuid">>, Info) of
-                        true ->
-                            Tags#{<<"uuid">> => UUID, <<"service_name">> => ServiceName, <<"device_uuid">> => maps:get(<<"device_uuid">>, Info)};
-                        false ->
-                            Tags#{<<"uuid">> => UUID, <<"service_name">> => ServiceName}
-                    end,
-            Measurement = <<"metric">>,
-            Points = lists:map(fun(Fields) -> influx_point:new(Measurement, NTags, Fields, Timestamp) end, FieldsList),
+            NTags = with_device_uuid(Tags#{<<"uuid">> => UUID, <<"service_name">> => ServiceName}, Info),
+
+            %% 按照设备的uuid进行分组
+            Points = lists:map(fun(Fields) -> influx_point:new(RouterUUID, NTags, Fields, Timestamp) end, FieldsList),
             Precision = influx_client:get_precision(Timestamp),
 
             poolboy:transaction(influx_pool, fun(Pid) -> influx_client:write(Pid, <<"iot">>, <<"iot">>, Precision, Points) end);
@@ -387,3 +383,9 @@ router_uuid(#{<<"device_uuid">> := DeviceUUID}, _) when is_binary(DeviceUUID), D
     DeviceUUID;
 router_uuid(_, UUID) ->
     UUID.
+
+-spec with_device_uuid(Tags :: #{}, Info :: #{}) -> #{}.
+with_device_uuid(Tags, #{<<"device_uuid">> := DeviceUUID}) when DeviceUUID /= <<>> ->
+    Tags#{<<"device_uuid">> => DeviceUUID};
+with_device_uuid(Tags, _) ->
+    Tags.