diff --git a/apps/iot/src/http_handler/device_handler.erl b/apps/iot/src/http_handler/device_handler.erl
index 99dba1b..227cfee 100644
--- a/apps/iot/src/http_handler/device_handler.erl
+++ b/apps/iot/src/http_handler/device_handler.erl
@@ -21,7 +21,7 @@
 handle_request("POST", "/device/reload", _, #{<<"host_id">> := HostId, <<"device_uuid">> := DeviceUUID}) when is_binary(DeviceUUID) ->
     lager:debug("[device_handler] host_id: ~p, will reload device uuid: ~p", [HostId, DeviceUUID]),
     AliasName = iot_host:get_alias_name(HostId),
-    case whereis(AliasName) of
+    case global:whereis_name(AliasName) of
         undefined ->
             {ok, 200, iot_util:json_error(404, <<"reload device failed">>)};
         HostPid when is_pid(HostPid) ->
@@ -37,7 +37,7 @@ handle_request("POST", "/device/reload", _, #{<<"host_id">> := HostId, <<"device
 %% 删除对应的主机信息
 handle_request("POST", "/device/delete", _, #{<<"host_id">> := HostId, <<"device_uuid">> := DeviceUUID}) when is_binary(DeviceUUID) ->
     AliasName = iot_host:get_alias_name(HostId),
-    case whereis(AliasName) of
+    case global:whereis_name(AliasName) of
         undefined ->
             {ok, 200, iot_util:json_error(404, <<"delete device failed">>)};
         HostPid when is_pid(HostPid) ->
@@ -48,7 +48,7 @@ handle_request("POST", "/device/delete", _, #{<<"host_id">> := HostId, <<"device
 %% 处理主机的授权的激活
 handle_request("POST", "/device/activate", _, #{<<"host_id">> := HostId, <<"device_uuid">> := DeviceUUID, <<"auth">> := Auth}) when is_binary(DeviceUUID) ->
     AliasName = iot_host:get_alias_name(HostId),
-    case whereis(AliasName) of
+    case global:whereis_name(AliasName) of
         undefined ->
             {ok, 200, iot_util:json_error(404, <<"activate device failed">>)};
         HostPid when is_pid(HostPid) ->
diff --git a/apps/iot/src/iot_host.erl b/apps/iot/src/iot_host.erl
index fac5f36..1d3cc41 100644
--- a/apps/iot/src/iot_host.erl
+++ b/apps/iot/src/iot_host.erl
@@ -164,7 +164,7 @@ init([UUID]) ->
 
             %% 通过host_id注册别名, 可以避免通过查询数据库获取HostPid
             AliasName = get_alias_name(HostId),
-            erlang:register(AliasName, self()),
+            global:register_name(AliasName, self()),
 
             {ok, StateName, #state{host_id = HostId, uuid = UUID, aes = Aes}};
         undefined ->