diff --git a/transmit_disinfection_protocol_v1.hpp b/transmit_disinfection_protocol_v1.hpp
index 7741fac..4e73edf 100644
--- a/transmit_disinfection_protocol_v1.hpp
+++ b/transmit_disinfection_protocol_v1.hpp
@@ -87,3 +87,12 @@ typedef struct {
   uint16_t saturation;    // %RS * 10
 } report_h2o2_data_t;
 #pragma pack()
+
+typedef enum {
+  kFixBoardId_MainBoard             = 1,    // 主机
+  kFixBoardId_LiquidCtrl            = 2,    // 液路板
+  kFixBoardId_PowerControl          = 3,    // 电源板
+  kFixBoardId_PowerControlMiniBoard = 4,    // 电源控制Mini板，用于拉杆箱箱消毒机
+  kFixBoardId_ExtBallValveCtrl      = 5,    // 外部球阀控制板
+  kFixBoardId_H2O2SensorStart       = 100,  // H2O2传感器板
+} FixBoardId_t;