diff --git a/apps/iot/src/iot_host.erl b/apps/iot/src/iot_host.erl
index a709772..0b83338 100644
--- a/apps/iot/src/iot_host.erl
+++ b/apps/iot/src/iot_host.erl
@@ -400,7 +400,9 @@ handle_event(cast, {handle, {data, Data}}, ?STATE_ACTIVATED, State = #state{aes
     {keep_state, State};
 
 %% ping的数据是通过aes加密后的，因此需要在有会话的情况下才行
-handle_event(cast, {handle, {ping, CipherMetric}}, ?STATE_ACTIVATED, State = #state{uuid = UUID, name = Name, aes = AES, has_session = true}) ->
+handle_event(cast, {handle, {ping, CipherMetric}}, ?STATE_ACTIVATED, State = #state{uuid = UUID, name = Name, aes = AES,
+    heartbeat_counter = HeartbeatCounter, has_session = true}) ->
+
     MetricsInfo = iot_cipher_aes:decrypt(AES, CipherMetric),
     case catch jiffy:decode(MetricsInfo, [return_maps]) of
         Metrics when is_map(Metrics) ->
@@ -411,10 +413,10 @@ handle_event(cast, {handle, {ping, CipherMetric}}, ?STATE_ACTIVATED, State = #st
 
             %% 检测消息是否需要报警
             iot_watchdog:detection(UUID, Name, Metrics),
-            {keep_state, State#state{metrics = Metrics}};
+            {keep_state, State#state{metrics = Metrics, heartbeat_counter = HeartbeatCounter + 1}};
         Other ->
             lager:warning("[iot_host] host_id: ~p, ping is invalid json: ~p", [UUID, Other]),
-            {keep_state, State}
+            {keep_state, State#state{heartbeat_counter = HeartbeatCounter + 1}}
     end;
 
 handle_event(cast, {handle, {inform, Info0}}, ?STATE_ACTIVATED, State = #state{uuid = UUID, host_id = HostId, aes = AES, has_session = true}) ->
diff --git a/docs/事件分类.md b/docs/事件分类.md
index 44b55d5..f3f5cea 100644
--- a/docs/事件分类.md
+++ b/docs/事件分类.md
@@ -1,21 +1,20 @@
 # 事件分类
 
 ```text
-11   23103  鼠类监测
-13   20407  异物占道
-14   10404  垃圾溢满
-12   22503  后厨非标着装
-15   23104  动火离人
-16   22706  强弱电间违规进入
-17 20863 作业人员抽烟监测 
-18 20864 作业人员手机使用监测 
-19 23105 挡鼠板监测 
-20 23106 垃圾桶加盖 
-21 22714 配电间人员进入监测
+11  23103   鼠类监测
+13  20407   异物占道
+14  10404   垃圾溢满
+12  22503   后厨非标着装
+15  23104   动火离人
+16  22715   强弱电间违规进入
+17  20863   作业人员抽烟监测 
+18  20864   作业人员手机使用监测 
+19  23105   挡鼠板监测 
+20  23106   垃圾桶加盖 
 ```
 
 1、鼠类检测 0508103010001050300001 朴苑餐厅
 2、异物占道 0512104030001050400003 行政楼B楼
 3、垃圾溢满 0507106030001050600003 朴苑3舍
 4、后厨非标着装 0500000000001022700537 监控摄像头532（诚苑餐厅 北侧）
-5、动火离人 0500000000001022700538 监控摄像头533（诚苑餐厅 北侧）
\ No newline at end of file
+5、动火离人 0500000000001022700538 监控摄像头533（诚苑餐厅 北侧）
\ No newline at end of file