diff --git a/aman/sys/Worker.py b/aman/sys/Worker.py
index 83c33fe..4af535b 100644
--- a/aman/sys/Worker.py
+++ b/aman/sys/Worker.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 
 import threading
+import time
 
 from aman.config.Airport import Airport
 
@@ -16,6 +17,13 @@ class Worker(threading.Thread):
         self.stopThread = True
 
     def run(self):
+        counter = 0
+
         while None == self.stopThread:
+            time.sleep(1)
+            counter += 1
+            if 0 != (counter % 60):
+                continue
+
             # TODO execute planning, etc.
             continue