CPC G05D 1/0276 (2013.01) [A01D 34/008 (2013.01); G05D 1/0265 (2013.01); H03M 13/156 (2013.01); A01D 2101/00 (2013.01); G05D 2201/0208 (2013.01)] | 20 Claims |
1. A computer implemented method for autonomous mower navigation, comprising:
receiving a return-to-zero encoded signal including a neutral condition between bits and comprising at least one pseudo-random sequence, wherein the neutral condition comprises a value halfway between a condition representing a 1 bit and a condition representing a 0 bit;
transforming the received signal to a non-return-to-zero phase-shift keyed representation, wherein the non-return-to-zero phase-shift keyed representation comprises a binary code in which binary 0's are represented by a negative voltage and binary l's are represented by a positive voltage, and wherein the non-return-to-zero phase-shift keyed representation does not include a neutral condition;
digitally sampling the non-return-to-zero signal representation; and
determining a location of the autonomous mower relative to a defined work area based on an evaluation of the digitally sampled non-return-to-zero signal representation.
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