diff --git a/positions/build.properties b/positions/build.properties
index fe1e3d1..ed9288b 100644
--- a/positions/build.properties
+++ b/positions/build.properties
@@ -1,8 +1,8 @@
 #Created by .winboll/winboll_app_build.gradle
-#Sun May 03 18:27:26 CST 2026
+#Mon May 04 03:36:37 CST 2026
 stageCount=20
 libraryProject=
 baseVersion=15.12
 publishVersion=15.12.19
-buildCount=21
+buildCount=23
 baseBetaVersion=15.12.20
diff --git a/positions/src/main/java/cc/winboll/studio/positions/MainActivity.java b/positions/src/main/java/cc/winboll/studio/positions/MainActivity.java
index ea26b3c..ef0c9a2 100644
--- a/positions/src/main/java/cc/winboll/studio/positions/MainActivity.java
+++ b/positions/src/main/java/cc/winboll/studio/positions/MainActivity.java
@@ -111,6 +111,9 @@ public class MainActivity extends WinBoLLActivity implements IWinBoLLActivity {
     protected void onResume() {
         super.onResume();
         LogUtils.d(TAG, "onResume -> 页面恢复可见");
+        if (App.isAppIdleRunning()) {
+            IdleGpsService.getInstance().start();
+        }
         if (mADsBannerView != null) {
             mADsBannerView.resumeADs(MainActivity.this);
         }
diff --git a/positions/src/main/java/cc/winboll/studio/positions/services/IdleGpsService.java b/positions/src/main/java/cc/winboll/studio/positions/services/IdleGpsService.java
index 0e6929b..b504299 100644
--- a/positions/src/main/java/cc/winboll/studio/positions/services/IdleGpsService.java
+++ b/positions/src/main/java/cc/winboll/studio/positions/services/IdleGpsService.java
@@ -16,32 +16,72 @@ import java.util.List;
 public class IdleGpsService {
 
     private static final long MOCK_INTERVAL_MS = 5000; // 模拟坐标更新间隔（5秒）
+    private static final long BEARING_INTERVAL_MS = 1000; // 角动量递增间隔（1秒）
+    private static final double EARTH_RADIUS_M = 6371000; // 地球平均半径（米）
+    private static final double ANCHOR_LAT = 39.9042; // 固定锚点纬度（北京）
+    private static final double ANCHOR_LON = 116.4074; // 固定锚点经度（北京）
+    private static final double CIRCLE_RADIUS_M = 50; // 移动轨迹半径（米）
+
     private static IdleGpsService instance;
     private final List<MainService.GpsUpdateListener> listeners = new ArrayList<>();
     private final Handler handler;
     private final Runnable updateRunnable;
+    private final Runnable bearingRunnable;
     private final PositionModel mockPosition;
     private boolean isRunning;
+    private int currentBearing = 1; // 当前角动量度数（1-360）
 
     private IdleGpsService() {
         handler = new Handler(Looper.getMainLooper());
         mockPosition = new PositionModel();
         mockPosition.setPositionId("mock_idle_pos");
         mockPosition.setMemo("空转模拟坐标");
-        // 默认模拟坐标：北京
-        mockPosition.setLatitude(39.9042);
-        mockPosition.setLongitude(116.4074);
 
         updateRunnable = new Runnable() {
             @Override
             public void run() {
                 if (isRunning) {
+                    calculatePosition();
                     notifyListeners(mockPosition);
-                    AppIdleRunningModeHandler.sendIdleLog("模拟GPS数据更新 -> 纬度:" + mockPosition.getLatitude() + ", 经度:" + mockPosition.getLongitude());
+                    AppIdleRunningModeHandler.sendIdleLog("模拟GPS数据更新 -> 纬度:" + mockPosition.getLatitude() + ", 经度:" + mockPosition.getLongitude() + ", 角度:" + currentBearing + "°");
                     handler.postDelayed(this, MOCK_INTERVAL_MS);
                 }
             }
         };
+
+        bearingRunnable = new Runnable() {
+            @Override
+            public void run() {
+                if (isRunning) {
+                    currentBearing++;
+                    if (currentBearing > 360) {
+                        currentBearing = 1;
+                    }
+                    handler.postDelayed(this, BEARING_INTERVAL_MS);
+                }
+            }
+        };
+    }
+
+    private void calculatePosition() {
+        double bearingRad = Math.toRadians(currentBearing);
+        double angularDistance = CIRCLE_RADIUS_M / EARTH_RADIUS_M;
+
+        double anchorLatRad = Math.toRadians(ANCHOR_LAT);
+        double anchorLonRad = Math.toRadians(ANCHOR_LON);
+
+        double newLatRad = Math.asin(
+            Math.sin(anchorLatRad) * Math.cos(angularDistance) +
+            Math.cos(anchorLatRad) * Math.sin(angularDistance) * Math.cos(bearingRad)
+        );
+
+        double newLonRad = anchorLonRad + Math.atan2(
+            Math.sin(bearingRad) * Math.sin(angularDistance) * Math.cos(anchorLatRad),
+            Math.cos(angularDistance) - Math.sin(anchorLatRad) * Math.sin(newLatRad)
+        );
+
+        mockPosition.setLatitude(Math.toDegrees(newLatRad));
+        mockPosition.setLongitude(Math.toDegrees(newLonRad));
     }
 
     public static IdleGpsService getInstance() {
@@ -57,10 +97,11 @@ public class IdleGpsService {
     public void start() {
         if (isRunning) return;
         isRunning = true;
+        currentBearing = 1;
         AppIdleRunningModeHandler.sendIdleLog("空转GPS服务已启动");
-        // 通知监听器
         notifyStatusChange("空转GPS服务已启动");
         handler.post(updateRunnable);
+        handler.post(bearingRunnable);
     }
 
     /**
@@ -70,6 +111,7 @@ public class IdleGpsService {
         if (!isRunning) return;
         isRunning = false;
         handler.removeCallbacks(updateRunnable);
+        handler.removeCallbacks(bearingRunnable);
         notifyStatusChange("空转GPS服务已停止");
         AppIdleRunningModeHandler.sendIdleLog("空转GPS服务已停止");
     }
@@ -103,14 +145,16 @@ public class IdleGpsService {
     private void startMockUpdate() {
         if (isRunning) return;
         isRunning = true;
-        // 通知状态变更
+        currentBearing = 1;
         notifyStatusChange("空转GPS服务已启动");
         handler.post(updateRunnable);
+        handler.post(bearingRunnable);
     }
 
     private void stopMockUpdate() {
         isRunning = false;
         handler.removeCallbacks(updateRunnable);
+        handler.removeCallbacks(bearingRunnable);
         notifyStatusChange("空转GPS服务已停止");
     }