Updated the Integration. Tested the system, it works.

Facial_Recognition_Inference.py

@@ -4,6 +4,8 @@ import cv2
 import numpy as np
 import DBHelper
 
+
+def inference():
     try:
         import cPickle  # Python 2
     except ImportError:
@@ -100,3 +102,7 @@ while DBHelper.get_power() == "on":
     DBHelper.set_alarm("off")
     DBHelper.set_motor("off")
     cv2.destroyAllWindows()
+
+
+if __name__ == "__main__":
+    inference()

start_engine.py

@@ -32,7 +32,7 @@ def start():
         print("Success.")
     except:
         print("No Thieves are registered.")
-    Facial_Recognition_Inference
+    Facial_Recognition_Inference.inference()
 
 
 if __name__ == "__main__":