Just an idea I had, where fixed stations on the surface sent down sound/shock-waves/radio(?) that could be used by tunnelling machines to determine a position.
I think part of the problem with shock-waves is that the constitution of the earth they are travelling might cause too much error, in the final position.
But I foresee a lot of tunnelling going on in the future, for rail, delivery systems, tunnels for cables, drainage in the case of floods...so robot tunnelling machines might become quite a thing, and they would need to know where they were.
I think part of the problem with shock-waves is that the constitution of the earth they are travelling might cause too much error, in the final position.
But I foresee a lot of tunnelling going on in the future, for rail, delivery systems, tunnels for cables, drainage in the case of floods...so robot tunnelling machines might become quite a thing, and they would need to know where they were.
