diff --git a/bsp/inc/bsp_ml307.h b/bsp/inc/bsp_ml307.h
index aa6ec71..eb2d970 100644
--- a/bsp/inc/bsp_ml307.h
+++ b/bsp/inc/bsp_ml307.h
@@ -34,7 +34,7 @@
 #define CMD_TYPE_INSTRUCTION_REPLY 0x14    // 命令类型 - 指令下发回复 (设备->平台)
 #define CMD_TYPE_TIME_CALIBRATION 0x15     // 命令类型 - 时间校准 (设备->平台)
 
-#define PROTOCOL_VERSION 0x11              /*协议版本*/
+#define PROTOCOL_VERSION 0x42              /*协议版本*/
 /*数据序列号*/
 #define DATA_SERIAL_NUM 0x0001  // 1
 
@@ -168,6 +168,7 @@ struct __attribute__ ((packed)) valve_t
     uint32_t valve_in_pressure;
     uint32_t valve_out_pressure;
     uint32_t valve_atm_pressure;
+    uint8_t valve_voltage;//阀门电池电压
 };
 
 struct __attribute__ ((packed)) DataBody