diff --git a/apps/iot/src/iot_build.erl b/apps/iot/src/iot_build.erl
index 9013d50..39bdd3c 100644
--- a/apps/iot/src/iot_build.erl
+++ b/apps/iot/src/iot_build.erl
@@ -101,7 +101,7 @@ handle_cast({handle_data, DeviceUUID, Fields, Timestamp}, State = #state{build_l
     {noreply, NewState :: #state{}} |
     {noreply, NewState :: #state{}, timeout() | hibernate} |
     {stop, Reason :: term(), NewState :: #state{}}).
-handle_info({timeout, _, report_ticker}, State = #state{build_location_code = LocationCode, build_location_code = LocationCode}) ->
+handle_info({timeout, _, report_ticker}, State = #state{build_location_code = LocationCode}) ->
     %% 需要汇报的keys: total_power, total_runtime, use_times; 这几个key的值是可以直接累加的
     %% props的格式为：#{key0 => props0, key1 => Props1}
 
diff --git a/apps/iot/src/mnesia/mnesia_build_data.erl b/apps/iot/src/mnesia/mnesia_build_data.erl
index 5dce324..85361fa 100644
--- a/apps/iot/src/mnesia/mnesia_build_data.erl
+++ b/apps/iot/src/mnesia/mnesia_build_data.erl
@@ -26,7 +26,7 @@ create_table() ->
     ]).
 
 -spec insert(LocationCode :: binary(), DeviceUUID :: binary(), Fields :: list(), Timestamp :: integer()) -> ok | {error, Reason :: any()}.
-insert(LocationCode, DeviceUUID, Fields, Timestamp) when is_integer(LocationCode), is_integer(DeviceUUID), is_list(Fields), is_integer(Timestamp) ->
+insert(LocationCode, DeviceUUID, Fields, Timestamp) when is_binary(LocationCode), is_binary(DeviceUUID), is_list(Fields), is_integer(Timestamp) ->
     Fun = fun() ->
         Q = qlc:q([E || E <- mnesia:table(?TAB), E#build_data.location_code =:= LocationCode, E#build_data.device_uuid =:= DeviceUUID]),
         case qlc:e(Q) of
@@ -48,7 +48,7 @@ insert(LocationCode, DeviceUUID, Fields, Timestamp) when is_integer(LocationCode
     end.
 
 -spec get_build_dataset(LocationCode :: binary()) -> [#build_data{}].
-get_build_dataset(LocationCode) when is_integer(LocationCode) ->
+get_build_dataset(LocationCode) when is_binary(LocationCode) ->
     Fun = fun() ->
         Q = qlc:q([E || E <- mnesia:table(?TAB), E#build_data.location_code =:= LocationCode]),
         qlc:e(Q)