A new way of keeping trains apart uses magnetic signals in the tracks

Re:A new way of keeping trains apart uses magnetic signals i... by sitkack on Saturday October 01, 2022 @02:48PM (#33048950)

You can dead reckon speed, location from camera lidar data, just like what they were doing with the magnetic map in the article.

I made no statements that the train would be locally self engineering using the cameras.

[ Parent | on HN ]

Re:A new way of keeping trains apart uses magnetic signals i... by bobthepanda on Sunday October 02, 2022 @02:55AM (#33053584)

If dead reckoning is what you're relying on, you need

* the last junction you passed and how you exited, and

* number of turns of the wheel.

The issue is that rewiring junctions is very expensive, upgrading trains to be compatible is expensive, etc. Even more so if you cannot upgrade an entire network all at once, and you need to account for mixed operations with both new and legacy compatible systems.

[ Parent | on HN ]