diff --git a/Core.go b/Core.go
index 1be0886..c9091fd 100644
--- a/Core.go
+++ b/Core.go
@@ -30,6 +30,12 @@ void sleep_seconds(int seconds) {
 #endif
 }
 
+void sys_sleep_seconds(int seconds) {
+#ifdef _WIN32
+    Sleep(seconds * 1000);  // Sleep 参数是毫秒
+#endif
+}
+
 #include "HCNetSDK.h"
 
 typedef struct DEVICEINFO
@@ -212,18 +218,31 @@ void SetPTZPOS(LONG lUserID,int action,char* P,char* T,char *Z)
     LONG lTranHandle = NET_DVR_SerialStart(lUserID, 2,g_fSerialDataCallBack,6);
     LONG lSerialChan = 0;
 	if (action == 1) {
+		sys_sleep_seconds(1);
 		NET_DVR_SerialSend(lTranHandle, lSerialChan, P, 7);
+		sys_sleep_seconds(1);
 		NET_DVR_SerialSend(lTranHandle, lSerialChan, T, 7);
+		sys_sleep_seconds(1);
 		NET_DVR_SerialSend(lTranHandle, lSerialChan, Z, 7);
+		sys_sleep_seconds(1);
 	}else if (action == 2) {
+		sys_sleep_seconds(1);
 		NET_DVR_SerialSend(lTranHandle, lSerialChan, P, 7);
+		sys_sleep_seconds(1);
 	}else if (action == 3) {
+		sys_sleep_seconds(1);
 		NET_DVR_SerialSend(lTranHandle, lSerialChan, T, 7);
+		sys_sleep_seconds(1);
 	}else if (action == 4) {
+		sys_sleep_seconds(1);
 		NET_DVR_SerialSend(lTranHandle, lSerialChan, Z, 7);
+		sys_sleep_seconds(1);
 	}else {
+		sys_sleep_seconds(1);
 		NET_DVR_SerialSend(lTranHandle, lSerialChan, P, 7);
+		sys_sleep_seconds(1);
 		NET_DVR_SerialSend(lTranHandle, lSerialChan, T, 7);
+		sys_sleep_seconds(1);
 	}
 
     NET_DVR_SerialStop(lTranHandle);