Hi Guys

My project group and I are planning to rig up a automated building for our 3rd project. The Idea is to rig up each door with RFID readers with a range of 1m. Then Depending on direction turn lights and air conditioners off or on.

We run into a few problems here. RFID has a 360 degree scan range. IS there any way to redirect or limit the angel of read ?
The reason for this is to ensure the scanners dont pick up a person going through the door next door. The building is an office type environment

Am i being draft and there is a better way of doing this ?

thanks