 | | Re: Household Positioning System Re: DGPS —Anders Johansson
| | | | (...) Some years ago i wrote the presentation part of a prototype system based on ultrasonic beacons. the beacons were plugged into wall outlets and transmitted their ID:s, i can't remember the details but the beacons were syncronized by (...) (25 years ago, 11-May-00, to lugnet.robotics.handyboard)
| | | | | | | | | | Re: Household Positioning System Re: DGPS —Ray Tang
| | | | | Actually, I am going in that direction. I was trying to use the ultrasonic transducer to produce a signal and then use two detector to triangulate the location. That wasn't much of a success. I will need to redo the parts. I want to try using more (...) (25 years ago, 12-May-00, to lugnet.robotics.handyboard)
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