The whole project needs 3 skills, electrical engineering for hardware infrared counter for car that can send signal to php server, php server that can receive signal and cms for mobile phone, and mobile application for both android and ios that include functions like Admob, google map and some more pages.
I need the hardware can be manufactured in extremely low cost because I will put it in many estates
I am experienced in managing project for mobile application with freelancers so the hardware is what I really need.
I need the mobile application to be in really good quality because when it is done. It is going to be faced many end-users.