Parking Guidance System Using VHDL

Actually I have a ready project and it was made by a degree student, this project is complete with VHDL code, you can check it out. but i have discussed with Dr today and told me you are using (LDR Sensor) and the sensor is very old and many students have done like this project before. so you have change some thing and exchange this simple sensor with another is better. so please check it out it's easy and I have already studied it and understand it, so if you can do it , please make sure you will the hardware as well because I don't have enough time to do it, I'm extremely busy with studying. thanks so much.