diff --git a/Code/triad_openvr/tracker_test.py b/Code/triad_openvr/tracker_test.py
index bac3d50..0d3b2ff 100644
--- a/Code/triad_openvr/tracker_test.py
+++ b/Code/triad_openvr/tracker_test.py
@@ -17,10 +17,14 @@ if interval:
     while(True):
         start = time.time()
         txt = ""
-        for each in v.devices["hmd_1"].get_pose_euler():
-            txt += "%.4f" % each
-            txt += " "
-        print("\r" + txt, end="")
-        sleep_time = interval-(time.time()-start)
-        if sleep_time>0:
-            time.sleep(sleep_time)
\ No newline at end of file
+        pose_euler = v.devices["hmd_1"].get_pose_euler()
+        if pose_euler is not None:
+            for each in pose_euler:
+                txt += "%.4f" % each
+                txt += " "
+            print("\r" + txt, end="")
+            sleep_time = interval - (time.time() - start)
+            if sleep_time > 0:
+                time.sleep(sleep_time)
+        else:
+            print("定位器超出基站扫描视野范围！")
\ No newline at end of file