diff --git a/device/definitions.go b/device/definitions.go
index 2bc1072..df24067 100644
--- a/device/definitions.go
+++ b/device/definitions.go
@@ -8,14 +8,6 @@ const (
 	//更新设备标识
 	DEVCIE_UPGRADE
 )
-const (
-	//android classic bluetooth
-	PROTOCOL_ANDROID_BLE = iota
-	//ios classic bluetooth
-	PROTOCOL_IOS_BLE
-	PROTOCOL_BLE
-	PROTOCOL_WIFI
-)
 
 type reqDeviceAuthorize struct {
 	// 设备id的个数
@@ -79,12 +71,12 @@ type resBaseInfo struct {
 }
 
 // 授权回调根信息
-type ResDeviceAuthorize struct {
+type resDeviceAuthorize struct {
 	util.CommonError
 	Resp []resBaseInfo `json:"resp"`
 }
 
-type ResCreateQRCode struct {
+type resCreateQRCode struct {
 	util.CommonError
 	DeviceNum int         `json:"device_num"`
 	CodeList  []resQRCode `json:"code_list"`
diff --git a/device/device.go b/device/device.go
index 91750b9..08d5c1f 100644
--- a/device/device.go
+++ b/device/device.go
@@ -43,7 +43,7 @@ func (d *Device) DeviceAuthorize(devices []ReqDevice, opType int, productId stri
 	if err != nil {
 		return nil, err
 	}
-	var result ResDeviceAuthorize
+	var result resDeviceAuthorize
 	err = json.Unmarshal(response, &result)
 	if err != nil {
 		return
@@ -73,7 +73,7 @@ func (d *Device) CreateQRCode(devices []string) (res []resQRCode, err error) {
 	if err != nil {
 		return
 	}
-	var result ResCreateQRCode
+	var result resCreateQRCode
 	err = json.Unmarshal(response, &result)
 	if err != nil {
 		return