Cassette tape-based navigation system from 1971

Re:Cassette tape-based navigation system from 1971 by sradman on Sunday July 05, 2020 @08:54AM (#23738316)

The technical details from the YouTube video [1]:

- one cassette tape per route

- distance to next milestone encoded in the bleep length on the tape

- controller unit interprets the bleep length

- controller unit reads RPMs from the spinning cable that normally drives the odometer

- controller unit has a pluggable circuit board that contains the wheel specific odometer RPM to distance conversion

- controller unit starts/stops the cassette player at each milestone

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Re:Cassette tape-based navigation system from 1971 by mongol on Sunday July 05, 2020 @01:20PM (#23740259)

So if I want to go from A to B, how do I get the tape for that? And if I make the wrong turn, am I screwed?

Granted, it is impressive for it's time.

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Re:Cassette tape-based navigation system from 1971 by beenBoutIT on Sunday July 05, 2020 @01:49PM (#23740458)

You'd have to put in a new tape for every A to B scenario or even a return trip of B to A.

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Re:Cassette tape-based navigation system from 1971 by contingencies on Sunday July 05, 2020 @02:44PM (#23740894)

And again for every human language, and again for every temporary road closure.

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