diff --git a/service/tool.go b/service/tool.go
index f025a23..796b148 100644
--- a/service/tool.go
+++ b/service/tool.go
@@ -58,17 +58,24 @@ func getVideoFrame(device proto.DeviceInfo) {
 	fontColor := color.RGBA{G: 255}
 	lineType := 2
 	z := 0
+	var frame gocv.Mat //当前帧
+	defer func(frame *gocv.Mat) {
+		err2 := frame.Close()
+		if err2 != nil {
+			fmt.Println("设备:%d 错误: 无法关闭帧", device.ID)
+		}
+	}(&frame)
 	for {
 		if device.LogFrame > 0 && z%device.LogFrame == 0 {
-			fmt.Printf("设备:%s 当前帧: %d\n", device.ID, z)
+			fmt.Printf("设备:%d 当前帧: %d\n", device.ID, z)
 		}
 		if device.NextStop {
 			break
 		}
-		frame := gocv.NewMat()
+		frame = gocv.NewMat()
 		ok := webcam.Read(&frame)
 		if !ok {
-			fmt.Printf("设备:%s 错误: 无法从视频流中读取帧\n", device)
+			fmt.Printf("设备 错误: 无法从视频流中读取帧:", device, "\n")
 			break
 		}
 		if frame.Empty() {