diff --git a/src/service/device_io_control_service.cpp b/src/service/device_io_control_service.cpp
index 7276e4e..4aa78e7 100644
--- a/src/service/device_io_control_service.cpp
+++ b/src/service/device_io_control_service.cpp
@@ -12,7 +12,7 @@ using namespace iflytop;
 using namespace std;
 
 #define GPM_TO_SPEED(gpm)   (gpm * 14.7)
-#define SPEED_TO_GPM(speed) (speed / 14.7)
+#define SPEED_TO_GPM(speed) ((speed / 14.7) + 0.5)
 
 static inline int filter(int data) {
   static list<int> q;
@@ -391,8 +391,12 @@ void DeviceIoControlService::replenishingFluidsPump_close_for_test() {
 /*******************************************************************************
  *                               sprayLiquidPump                               *
  *******************************************************************************/
+static int32_t SprayLiquidPump__gpm;
+
 void DeviceIoControlService::sprayLiquidPump_open(int gpm) {
   logger->info("sprayLiquidPump_open {}", gpm);
+  SprayLiquidPump__gpm = gpm;
+
   int speed = GPM_TO_SPEED(gpm);
   if (speed > 400) {
     speed = 400;
@@ -403,6 +407,7 @@ void DeviceIoControlService::sprayLiquidPump_open(int gpm) {
 }
 void DeviceIoControlService::sprayLiquidPump_close() {
   logger->info("sprayLiquidPump_close");
+  SprayLiquidPump__gpm = 0;
   m_zcanHost->pumpctrl_c1004(2, 100, 0, 1, 15);
 }
 
@@ -414,15 +419,17 @@ void DeviceIoControlService::sprayLiquidPump_open_for_test(int gpm) {
   } else if (speed < -400) {
     speed = -400;
   }
+  SprayLiquidPump__gpm = gpm;
   m_zcanHost->pumpctrl_c1004(2, 100, speed, 1, 15);
 }
 void DeviceIoControlService::sprayLiquidPump_close_for_test() {
   logger->info("sprayLiquidPump_close");
+  SprayLiquidPump__gpm = 0;
   m_zcanHost->pumpctrl_c1004(2, 100, 0, 1, 15);
 }
 
-int DeviceIoControlService::sprayLiquidPump_getRPM() { return m_zcanHost->pumpctrl_c1004_get_speed_cache(2); }
-int DeviceIoControlService::sprayLiquidPump_getGPM() { return SPEED_TO_GPM(sprayLiquidPump_getRPM()); }
+int DeviceIoControlService::sprayLiquidPump_getRPM() { return GPM_TO_SPEED(SprayLiquidPump__gpm); }
+int DeviceIoControlService::sprayLiquidPump_getGPM() { return SprayLiquidPump__gpm; }
 
 int DeviceIoControlService::sprayLiquidPump_getState() {  //
   lock_guard<recursive_mutex> lock(lock_);
diff --git a/src/service/device_io_control_service_test.cpp b/src/service/device_io_control_service_test.cpp
index 933959e..925a51c 100644
--- a/src/service/device_io_control_service_test.cpp
+++ b/src/service/device_io_control_service_test.cpp
@@ -290,7 +290,7 @@ int32_t DeviceIoControlServiceTest::DBDB__extValveCtrl(int index) {
   return 0;
 }
 int32_t DeviceIoControlServiceTest::DBDB__extValBoardIsOnline() {
-  logger->info("DBDB__extValBoardIsOnline");
+  // logger->info("DBDB__extValBoardIsOnline");
   return 1;
 }
 #endif
\ No newline at end of file