diff --git a/src/FoodDeliveryBase.cpp b/src/FoodDeliveryBase.cpp
index 1447935..582ea38 100644
--- a/src/FoodDeliveryBase.cpp
+++ b/src/FoodDeliveryBase.cpp
@@ -553,12 +553,13 @@ void FoodCube::mav_request_data()
  * @description: 向飞控请求指定的参数值
  * @param {char*} param_id 要请求的参数的名称
  */
-void FoodCube::mav_parameter_data(const char* param_id) {
+void FoodCube::mav_parameter_data(const char *param_id)
+{
   mavlink_message_t msg;
   uint8_t buf[MAVLINK_MAX_PACKET_LEN];
-  
+
   // 构造PARAM_REQUEST_READ消息
-  mavlink_msg_param_request_read_pack(1, 200, &msg, 1, 1, param_id, -1);
+  mavlink_msg_param_request_read_pack(1, 200, &msg, 1, 1, param_id, -11);
   uint16_t len = mavlink_msg_to_send_buffer(buf, &msg);
   SWrite(buf, len, mavlinkSerial);
 }