Startup Idea: Smart Door Locking System

Startup idea to develop a smart door locking system, controllable and trackable via a cell phone. The application would provide status updates about the arrival of employees or intruders, making it a viable solution for both professional and home settings.

I work in the Service field, but I think that locking doors (perhaps track-able/lockable via a cell phone), would work wonders for managers across fields. Given status updates about the arrival of employees or intruders, many would find it suitable for employment and home settings. Yes, but most of the designs are terrible. I searched for "Automatic locking doors cell phone" via Google.