FacialRecognition must identify the driver behind the wheel and number plate when leaving the estate. Many criminals have robbed people and then simply opened the gates using the remote.
Establish a MeshNetworking link to a central base. The security guard will send an open-gate activation signal allowing you to enter or leave your property. But you also need to activate the gates using a Rfremote. Thus both signals are necessary. This is to prevent somebody from gaining entry to your premise if he gets hold of your RfActivation module. Many people have had their Rfkey dipswitch settings copied at the carwash for example. Place a board outside the estate explaining the security measures - advertise it.