diff --git a/handler/tool.go b/handler/tool.go
index 7b980c0..6ae2356 100644
--- a/handler/tool.go
+++ b/handler/tool.go
@@ -213,10 +213,11 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
 	//定时器，发送计数器
 	t_count := 0
 	t := 0
+	img := gocv.NewMat()
 	//计算帧率
 	for {
 		//从service获取当前帧
-		img, c := service.GetDeviceCurrentFrameV3(device_id)
+		c := service.GetDeviceCurrentFrameV2(&img, device_id)
 		if c != count {
 			if c == -1 {
 				log.Printf("device:%d get frame err!", device_id)
@@ -269,6 +270,11 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
 		t_count++
 	}
 
+	err5 := img.Close()
+	if err5 != nil {
+		log.Printf("img close err:%v", err5)
+	}
+
 	// 查看是否还有其他连接，没有则设置 is_play 为 0
 	if worker.IsContainKey(online_conn_key) == false {
 		worker.SetRedisWithExpire(strconv.Itoa(device_id)+"_is_play", "1", time.Minute*5)