diff --git a/handler/tool.go b/handler/tool.go
index 000bc10..52ba04f 100644
--- a/handler/tool.go
+++ b/handler/tool.go
@@ -213,10 +213,9 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
 	count := 0
 	//定时器，发送计数器
 	t_count := 0
-	img := gocv.NewMat()
 	for {
 		//从service获取当前帧
-		c := service.GetDeviceCurrentFrameV2(&img, device_id)
+		img, c := service.GetDeviceCurrentFrameV3(device_id)
 		if c != count {
 			if c == -1 {
 				log.Printf("device:%d get frame err!", device_id)
@@ -260,11 +259,6 @@ func subscribeAndHandleMessagesV3(ws *websocket.Conn, device_id int) {
 		time.Sleep(100 * time.Millisecond)
 		t_count++
 	}
-	// 关闭img
-	err := img.Close()
-	if err != nil {
-		log.Printf("device:%d img close err:%v", device_id, err)
-	}
 
 	// 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 {