What is the easiest way to build a local positioning system i.e. a system that doesn't use GPS.

I am working on a project that has to track a moving car using local positioning system.Currently,I am stuck with the idea of using beacons.Please suggest alternative solutions.Detailed answer would be great...thanks

Answer 1

[Star Strider]

In the days before GPS, airplanes on overseas flights (where radionavigation was not available) used intertial navigation systems. Perhaps you could use a version of that, using integrated circuit accelerometers and gyroscopes. (That’s as detailed as my knowledge of the subject permits me to go!)

Do a DuckDuckGo Internet search and a literature search of relevant journals to see what is published in that area. Your problem might already have been solved for you, at least in part.

Answer 2

[Albert Sagala]

Hi, I think you can try to build an LPS as how GPS works. Start to build some transmitter with a known position. Each transmits the signal with different sequence code so that in the receiver side, the signal is easy to be identified.

[Walter Roberson]

I wonder if the task is to track position from inside the car, or to track positions from outside the car?

From outside the car, techniques such as radar can be used.

In some circumstances, there might be a use for LIDAR. However, I would not expect that to be useful outside of lab situations (LIDAR is more useful for tracking relative distances from the perspective of the vehicle.)