diff --git a/build/CMakeFiles/airport_collision_avoidance.dir/src/network/HTTPDataSource.cpp.o b/build/CMakeFiles/airport_collision_avoidance.dir/src/network/HTTPDataSource.cpp.o
index 46ca233..6421b4a 100644
Binary files a/build/CMakeFiles/airport_collision_avoidance.dir/src/network/HTTPDataSource.cpp.o and b/build/CMakeFiles/airport_collision_avoidance.dir/src/network/HTTPDataSource.cpp.o differ
diff --git a/build/bin/airport_collision_avoidance b/build/bin/airport_collision_avoidance
index 44abe5c..ae4b03c 100755
Binary files a/build/bin/airport_collision_avoidance and b/build/bin/airport_collision_avoidance differ
diff --git a/docs/design.md b/docs/design.md
index d68d1b8..bab7fe4 100644
--- a/docs/design.md
+++ b/docs/design.md
@@ -81,7 +81,7 @@ graph TD
 ### 3.2 坐标转换
 
 - 使用等角投影方法
-- 基于机场参考点（通常为跑道中心点）
+- 基于机场参考点（青岛胶州国际机场：北纬36°21'43.2"，东经120°05'16.8"）
 - 考虑地球曲率影响
 - WGS84椭球体参数
 
@@ -202,7 +202,7 @@ private:
 
 ## 7. 部署方案
 
-### 7.1 ��境要求
+### 7.1 环境要求
 
 - Linux服务器
 - 多核CPU
diff --git a/src/network/HTTPDataSource.cpp b/src/network/HTTPDataSource.cpp
index 7887ace..3aff05e 100644
--- a/src/network/HTTPDataSource.cpp
+++ b/src/network/HTTPDataSource.cpp
@@ -8,8 +8,8 @@ using json = nlohmann::json;
 HTTPDataSource::HTTPDataSource(const ConnectionConfig& config)
     : host_(config.host)
     , port_(std::to_string(config.port)) {
-    // 设置坐标转换器的参考点（浦东机场坐标）
-    coordinateConverter_.setReferencePoint(31.143494, 121.805214);
+    // 设置坐标转换器的参考点（青岛胶州国际机场坐标）
+    coordinateConverter_.setReferencePoint(36.361999, 120.088003);
 }
 
 HTTPDataSource::~HTTPDataSource() {
@@ -85,7 +85,7 @@ bool HTTPDataSource::fetchData() {
         return false;
     }
 
-    // ��取响应
+    // 取响应
     std::string response;
     if (!readResponse(response)) {
         disconnect();
diff --git a/tools/mock_server.py b/tools/mock_server.py
index 4bc9ab3..de35253 100644
--- a/tools/mock_server.py
+++ b/tools/mock_server.py
@@ -29,9 +29,9 @@ class CustomRequestHandler(WSGIRequestHandler):
 
 app = Flask(__name__)
 
-# 机场参考点（浦东机场坐标）
-AIRPORT_LAT = 31.143494
-AIRPORT_LON = 121.805214
+# 机场参考点（青岛胶州国际机场坐标）
+AIRPORT_LAT = 36.361999  # 北纬36°21'43.2"
+AIRPORT_LON = 120.088003  # 东经120°05'16.8"
 
 def generate_mock_data():
     """生成模拟数据"""