diff --git a/protos/device_state.proto b/protos/device_state.proto
index e432e4e..575f38f 100644
--- a/protos/device_state.proto
+++ b/protos/device_state.proto
@@ -140,8 +140,10 @@ message TrainDynamicState {
 	int32 headRadarSpeed = 19;
 	//尾车雷达速度值（m/s）tailRadarSpeed,1=1km/h
 	int32 tailRadarSpeed = 20;
-	// 通讯终端
+	// 通讯中断
 	bool udpInterruption = 21;
+	// 加速
+	float acceleration = 22;
 }
 
 // vobc发过来的列车信息
@@ -194,7 +196,7 @@ message TrainVobcState {
 	bool rightDoorCloseCommand = 23;
 	// 整列车门关好	1=门关好
 	bool allDoorClose = 24;
-	// 通讯终端
+	// 通讯中断
 	bool udpInterruption = 25;
 }