diff --git a/protos/device_state.proto b/protos/device_state.proto
index 88b1528..7634f58 100644
--- a/protos/device_state.proto
+++ b/protos/device_state.proto
@@ -55,7 +55,7 @@ message SignalState{
   //信号机索引
   string  id = 1;
 }
-//信号机显示定义
+//信号机显示枚举定义
 message Signal {
 	enum Aspect {
 		//物理灭灯