diff --git a/handler/tool.go b/handler/tool.go
index db2bb54..1cdfb5b 100644
--- a/handler/tool.go
+++ b/handler/tool.go
@@ -144,7 +144,13 @@ func GetRealTimeImage(c *gin.Context) {
 	}
 	//查看设备是否在获取
 	isGet, ok := service.DeviceIsGettingFrame.Load(device.ID)
-	if !ok || isGet == false {
+	if !ok {
+		c.JSON(http.StatusOK, gin.H{"code": 4, "message": "device not getting frame or not exist"})
+		log.Printf("device:%d not found,isGet:%v , ok = %v", device.ID, isGet, ok)
+		return
+	}
+	isGet_ := isGet.(bool)
+	if isGet_ == false {
 		//直接返回
 		c.JSON(http.StatusOK, gin.H{"code": 4, "message": "device not getting frame or not exist"})
 		log.Printf("device:%d not found,isGet:%v , ok = %v", device.ID, isGet, ok)
diff --git a/main.go b/main.go
index e64fd53..109ded3 100644
--- a/main.go
+++ b/main.go
@@ -96,7 +96,8 @@ func ReadConfigAndSetSystem() {
 	}
 	//检测是否需要获取设备流,如果需要则开启
 	for _, device := range proto.Config.DeviceInfo {
-		is_get, ok := service.DeviceIsGettingFrame.Load(device.ID)
+		isGet, ok := service.DeviceIsGettingFrame.Load(device.ID)
+		isGet_ := isGet.(bool)
 		if !ok {
 			//说明没有这个设备，需初始化添加
 			service.DeviceRWMap.Store(device.ID, &sync.RWMutex{})
@@ -104,7 +105,7 @@ func ReadConfigAndSetSystem() {
 			service.DeviceFrameCount[device.ID] = 0
 			service.DeviceIsGettingFrame.Store(device.ID, false)
 		}
-		if is_get == false && device.NextStop == false { //如果设备流已经停止且不暂停，则开启
+		if isGet_ == false && device.NextStop == false { //如果设备流已经停止且不暂停，则开启
 			switch device.ID {
 			case 1:
 				service.Device1CurrentFrame = gocv.NewMat()
diff --git a/service/tool.go b/service/tool.go
index af1e305..d166558 100644
--- a/service/tool.go
+++ b/service/tool.go
@@ -329,7 +329,12 @@ func GetVideoStream(id int) {
 			break
 		}
 		is_get, ok = DeviceIsGettingFrame.Load(id)
-		if is_get == true {
+		if !ok {
+			log.Printf("device: %d not found", id)
+			break
+		}
+		isGet := is_get.(bool)
+		if isGet == true {
 			log.Printf("for device:%d is running!", id)
 			break
 		}