diff --git a/README.md b/README.md
index 9c6bf9c..22ca0a3 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,9 @@ iot
 
 An OTP application
 
+## erlang client sdk
+    https://github.com/emqx/emqtt
+
 Build
 -----
 
diff --git a/apps/iot/include/iot.hrl b/apps/iot/include/iot.hrl
index d45b7fc..ff030c9 100644
--- a/apps/iot/include/iot.hrl
+++ b/apps/iot/include/iot.hrl
@@ -83,7 +83,7 @@
 %% 主机定义
 -record(host, {
     %% ID
-    id :: binary(),
+    host_id :: binary(),
     %% 名称
     name :: binary(),
     %% 型号
@@ -104,7 +104,7 @@
 %% 终端设备表
 -record(terminal, {
     %% 设备ID
-    id :: binary(),
+    terminal_id :: binary(),
     %% 关联主机
     host_id :: binary(),
     %% 名称
@@ -132,7 +132,7 @@
 %% 微服务表
 -record(microservice, {
     %% ID, 基于UUID生成
-    id :: binary(),
+    service_id :: binary(),
     %% 关联主机
     host_id :: binary(),
     %% 名称
diff --git a/apps/iot/src/iot_message_handler.erl b/apps/iot/src/iot_message_handler.erl
index 35f50c4..233726a 100644
--- a/apps/iot/src/iot_message_handler.erl
+++ b/apps/iot/src/iot_message_handler.erl
@@ -11,14 +11,15 @@
 -include("iot.hrl").
 
 %% API
--export([]).
+-export([handle/2]).
 
 handle(<<"server.register">>, Msg = #{<<"c_id">> := ClientId, <<"r">> := PubKey,
     <<"m">> := #{<<"cpu_core">> := CpuCore, <<"memory">> := Memory, <<"disk">> := Disk, <<"boot_time">> := BootTime, <<"efka_version">> := EfkaVersion, <<"kernel_arch">> := KernelArch, <<"ipv4_1">> := Ip1, <<"ipv4_2">> := Ip2}}) ->
+    lager:debug("[iot_message_handler] get server register message: ~p", [Msg]),
 
     Aes = iot_util:rand_bytes(16),
     Host = #host{
-        id = ClientId,
+        host_id = ClientId,
         aes = Aes,
         metric = #host_metric{
             %% cpu相关
diff --git a/apps/iot/src/iot_mock.erl b/apps/iot/src/iot_mock.erl
index 846b17c..d565590 100644
--- a/apps/iot/src/iot_mock.erl
+++ b/apps/iot/src/iot_mock.erl
@@ -18,7 +18,7 @@ insert_hosts() ->
     lists:foreach(fun(Id0) ->
         %Id0 = iot_util:rand_bytes(16),
         Host = #host{
-            id = integer_to_binary(Id0),
+            host_id = integer_to_binary(Id0),
             name = <<"N1000_0001">>,
             model = <<"N1000">>,
             cell_id =  <<"公共教学楼"/utf8>>
diff --git a/apps/iot/src/model/terminal_model.erl b/apps/iot/src/model/terminal_model.erl
index fdef7b5..8192fe4 100644
--- a/apps/iot/src/model/terminal_model.erl
+++ b/apps/iot/src/model/terminal_model.erl
@@ -47,7 +47,7 @@ get_status_stat() ->
 
 insert(Id, HostId, Name, ProductId, VendorId, Model, CellId) ->
     Terminal = #terminal{
-        id = Id,
+        terminal_id = Id,
         name = Name,
         product_id = ProductId,
         vendor_id = VendorId,