diff --git a/service/tool.go b/service/tool.go
index c6244b9..d70081c 100644
--- a/service/tool.go
+++ b/service/tool.go
@@ -53,7 +53,7 @@ func SetDeviceCurrentFrame(frame gocv.Mat, device_id int) error {
 	return nil
 }
 
-func SetDeviceCurrentFrameV2(frame gocv.Mat, device_id int) error {
+func SetDeviceCurrentFrameV2(frame *gocv.Mat, device_id int) error {
 	//获取读写锁
 	mutex_, ok := DeviceRWMap.Load(device_id)
 	if !ok {
@@ -65,9 +65,9 @@ func SetDeviceCurrentFrameV2(frame gocv.Mat, device_id int) error {
 	//设置当前帧
 	switch device_id {
 	case 1:
-		Device1CurrentFrame = frame
+		Device1CurrentFrame = *frame
 	case 50:
-		Device50CurrentFrame = frame
+		Device50CurrentFrame = *frame
 	}
 	frame_count, ok := DeviceFrameCount.Load(device_id)
 	if !ok {
@@ -224,6 +224,7 @@ func getVideoFrame(device proto.DeviceInfo) {
 	fontColor := color.RGBA{G: 255}
 	lineType := 2
 	z := 0
+	var frame gocv.Mat
 	for {
 		if device.LogFrame > 0 && z%device.LogFrame == 0 {
 			log.Printf("设备:%d 当前帧: %d\n", device.ID, z)
@@ -231,7 +232,7 @@ func getVideoFrame(device proto.DeviceInfo) {
 		if device.NextStop {
 			break
 		}
-		frame := gocv.NewMat()
+		frame = gocv.NewMat()
 		ok := webcam.Read(&frame)
 		if !ok {
 			log.Printf("设备:%v 错误: 无法从视频流中读取帧\n", device)
@@ -252,16 +253,16 @@ func getVideoFrame(device proto.DeviceInfo) {
 		currentTime := time.Now().Format("2006-01-02 15:04:05")
 		gocv.PutText(&frame, currentTime, image.Point{10, 20}, font, fontScale, fontColor, lineType)
 		//需要将帧付给全局变量
-		err3 := SetDeviceCurrentFrameV2(frame, device.ID)
+		err3 := SetDeviceCurrentFrameV2(&frame, device.ID)
 		if err3 != nil {
 			log.Printf("设备:%d 错误: 无法设置当前帧,err:%s \n", device.ID, err3.Error())
 		}
 		z++
-		//关闭帧
-		err4 := frame.Close()
-		if err4 != nil {
-			log.Printf("设备:%d 错误: 无法关闭帧,err:%s \n", device.ID, err4.Error())
-		}
+	}
+	//关闭帧
+	err4 := frame.Close()
+	if err4 != nil {
+		log.Printf("设备:%d 错误: 无法关闭帧,err:%s \n", device.ID, err4.Error())
 	}
 }