diff --git a/protos/request.proto b/protos/request.proto
index b5dceb5..864b42c 100644
--- a/protos/request.proto
+++ b/protos/request.proto
@@ -1,5 +1,7 @@
 syntax = "proto3";
 
+import "device_state.proto";
+
 package request;
 option go_package = "./dto/request_proto";
 
@@ -26,3 +28,30 @@ message TurnoutOperationReq {
     string deviceId = 3; // 设备id
     Turnout.Operation operation = 4; // 道岔操作
 }
+
+// 信号机
+message Signal{
+    //信号机操作
+    enum Operation{
+        Undefined = 0; // 未定义
+        Display = 1; //显示操作,如设置绿色、设置红黄色
+        LightHFaultDs = 2;//设置红灯断丝故障
+        LightUFaultDs = 3;//设置黄灯断丝故障
+        LightLFaultDs = 4;//设置绿灯断丝故障
+        LightAFaultDs = 5;//设置蓝灯断丝故障
+        LightBFaultDs = 6;//设置白灯断丝故障
+        LightHCancelDs = 7;//取消红灯断丝故障
+        LightUCancelDs = 8;//取消黄灯断丝故障
+        LightLCancelDs = 9;//取消绿灯断丝故障
+        LightACancelDs = 10;//取消蓝灯断丝故障
+        LightBCancelDs = 11;//取消白灯断丝故障
+    }
+}
+// 信号机操作请求
+message SignalOperationReq {
+    string simulationId = 1; // 仿真id
+    int32 mapId = 2; // 图id
+    string deviceId = 3; // 设备id
+    Signal.Operation operation = 4; // 信号机操作
+    state.Signal.Aspect  aspect = 5;// 当操作为Operation.Display时有效，表示显示的信号
+}
\ No newline at end of file