diff --git a/apps/iot/src/iot_host.erl b/apps/iot/src/iot_host.erl
index 9f5d333..1a44851 100644
--- a/apps/iot/src/iot_host.erl
+++ b/apps/iot/src/iot_host.erl
@@ -260,7 +260,10 @@ handle_event(cast, {handle, {data, Data}}, session, State = #state{uuid = UUID,
             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),
+            Points = lists:map(fun(Fields) ->
+                NFields = convert_fields(Fields),
+                influx_point:new(RouterUUID, NTags, NFields, Timestamp)
+                               end, FieldsList),
             Precision = influx_client:get_precision(Timestamp),
 
             poolboy:transaction(influx_pool, fun(Pid) -> influx_client:write(Pid, <<"metric">>, <<"nannong">>, Precision, Points) end);
@@ -378,6 +381,11 @@ code_change(_OldVsn, StateName, State = #state{}, _Extra) ->
 %%% Internal functions
 %%%===================================================================
 
+convert_fields(#{<<"key">> := Key, <<"value">> := Value, <<"unit">> := Unit}) ->
+    #{Key => jiffy:encode(#{<<"value">> => Value, <<"unit">> := Unit}, [force_utf8])};
+convert_fields(#{<<"key">> := Key, <<"value">> := Value}) ->
+    #{Key => Value}.
+
 %% 获取到分发的路由
 router_uuid(#{<<"device_uuid">> := DeviceUUID}, _) when is_binary(DeviceUUID), DeviceUUID /= <<>> ->
     DeviceUUID;
@@ -389,3 +397,5 @@ with_device_uuid(Tags, #{<<"device_uuid">> := DeviceUUID}) when DeviceUUID /= <<
     Tags#{<<"device_uuid">> => DeviceUUID};
 with_device_uuid(Tags, _) ->
     Tags.
+
+
diff --git a/config/sys-dev.config b/config/sys-dev.config
index a7d2235..ca70363 100644
--- a/config/sys-dev.config
+++ b/config/sys-dev.config
@@ -46,7 +46,7 @@
         ]
       },
 
-      %% influxdb数据库配置
+      %% influxdb数据库配置, 测试环境的： 用户名: iot; password: password1234
       {influx_pool,
         [{size, 100}, {max_overflow, 200}, {worker_module, influx_client}],
         [