Hey everyone,
I'm doing a project for school and I want to make a device to measure how far a car is away from a location at any given point. I'm assuming that the easiest way for me to do this is to put something in the car that generates a signal, and have reciever at the location that measures signal strength, and calibrate it by finding what signal strengths correlate with what distances. I need the system to read the distance up to at least a quarter mile, if not half a mile or more.
Although i have the basic idea for what it should be, i've been looking around for a way to do this and i've had no luck (i've looked at things like RFID but the range is nowhere near what i'd need). I'm on a fairly limited budget, so i'm looking for the most economical way of doing this. Can anyone point me in the right direction as to where i should look for this kind of thing or what parts i should buy to make one?
Thanks in advance for any help.
I'm doing a project for school and I want to make a device to measure how far a car is away from a location at any given point. I'm assuming that the easiest way for me to do this is to put something in the car that generates a signal, and have reciever at the location that measures signal strength, and calibrate it by finding what signal strengths correlate with what distances. I need the system to read the distance up to at least a quarter mile, if not half a mile or more.
Although i have the basic idea for what it should be, i've been looking around for a way to do this and i've had no luck (i've looked at things like RFID but the range is nowhere near what i'd need). I'm on a fairly limited budget, so i'm looking for the most economical way of doing this. Can anyone point me in the right direction as to where i should look for this kind of thing or what parts i should buy to make one?
Thanks in advance for any help.