diff --git a/protos/alertConst.proto b/protos/alertConst.proto
index 4f94aab..be7043a 100644
--- a/protos/alertConst.proto
+++ b/protos/alertConst.proto
@@ -82,8 +82,10 @@ enum AlertType {
   TRAIN_FAULT_HELP = 29;
   //ats卡滞
   INTERLOCKED_ATS_STUCK = 30;
-
+  //列车驶入驶离站台
   TRAIN_RECORD = 31;
+  //车站扣车
+  HOLD_PLATFORM_STAY_TRAIN_MORE = 32;
 }
 enum TipTimeConfig{
   //假期早高峰
diff --git a/protos/device_status.proto b/protos/device_status.proto
index d8b081d..1f189be 100644
--- a/protos/device_status.proto
+++ b/protos/device_status.proto
@@ -204,9 +204,13 @@ message Platform {
   bool emergstop = 1;
   bool trainberth = 2;
   bool close = 3;
+  //上行方向车站扣车
   bool upHold = 4;
+  //下行方向车站扣车
   bool downHold = 5;
+  //上行方向中心扣车
   bool upOccHold = 6;
+  //下行方向中心扣车
   bool downOccHold = 7;
   bool psdOpen = 8;
   bool psdCut = 9;