Hi all, I am looking for a good, inexpensive and reliable way of sensing the distance to a human (me :-)) swimming in water. I was envisioning something where I can put some small, water-resistent 'sender' under my swim cap the distance to which the sensor can determine. But maybe there even is a way that does not require a sender? If the sensor could also sense where I am (direction) in addition to the distance that would be great. Can anybody point me in the right direction? Thanks a lot for any hint! Ingo
No. Real ideas but are you in your own pool alone? Could you use multiple sensors? What kind of range and accuracy do you need?
You don't give any specifications, like update rate, accuracy, degrees of freedom or IP rating (how deep do you go?).
It may be as complex as multiple video cameras, or a simple as a reel of string.
Hi, ok let me be more specific: I like open water swimming (mostly in lakes around Berlin), and I would like to build a hard shell backpack that transforms into a water vehicle that carries my clothes (so that I do not need to leave them at the shore and do not need to swim back to them) and either 1) follow me at a set distance or 2) cruises a set distance ahead of me along a set of GPS waypoints. Ideally I would be able to switch between the two modes. Ingo