公开(公告)号：US20200326725A1

公开(公告)日：2020-10-15

申请号：US16912842

申请日：2020-06-26

Applicant: MTD Products Inc

Inventor： Christopher J. Churavy ,  Edward J. Blanchard

IPC: G05D1/02 ,  A01D34/00 ,  H03M13/15

Abstract: A method for autonomous mower navigation includes receiving a return-to-zero encoded signal including a pseudo-random sequence, transforming the received signal to a non-return-to-zero representation, digitally sampling the non-return-to-zero signal representation in a time domain, filtering the sampled signal utilizing a reference data array based on the return-to-zero encoded signal to produce a filter output, and determining a location of the autonomous mower relative to a defined work area based on an evaluation of the filter output.

公开(公告)号：US11687093B2

公开(公告)日：2023-06-27

申请号：US16912842

申请日：2020-06-26

Applicant: MTD Products Inc

Inventor： Christopher J. Churavy ,  Edward J. Blanchard

IPC: G05D1/02 ,  A01D34/00 ,  H03M13/15 ,  A01D101/00

CPC classification number: G05D1/0276 ,  A01D34/008 ,  G05D1/0265 ,  H03M13/156 ,  A01D2101/00 ,  G05D2201/0208

Abstract: A method for autonomous mower navigation includes receiving a return-to-zero encoded signal including a pseudo-random sequence, transforming the received signal to a non-return-to-zero representation, digitally sampling the non-return-to-zero signal representation in a time domain, filtering the sampled signal utilizing a reference data array based on the return-to-zero encoded signal to produce a filter output, and determining a location of the autonomous mower relative to a defined work area based on an evaluation of the filter output.

公开(公告)号：US10698417B2

公开(公告)日：2020-06-30

申请号：US15588025

申请日：2017-05-05

Applicant: MTD Products Inc

Inventor： Christopher J. Churavy ,  Edward J. Blanchard

IPC: G05D1/02 ,  A01D34/00 ,  H03M13/15 ,  G01S5/00 ,  A01D101/00

Abstract: A method for autonomous mower navigation includes receiving a return-to-zero encoded signal including a pseudo-random sequence, transforming the received signal to a non-return-to-zero representation, digitally sampling the non-return-to-zero signal representation in a time domain, filtering the sampled signal utilizing a reference data array based on the return-to-zero encoded signal to produce a filter output, and determining a location of the autonomous mower relative to a defined work area based on an evaluation of the filter output.

公开(公告)号：US20170322562A1

公开(公告)日：2017-11-09

申请号：US15588025

申请日：2017-05-05

Applicant: MTD Products Inc

Inventor： Christopher J. Churavy ,  Edward J. Blanchard

IPC: G05D1/02 ,  A01D34/00 ,  H03M13/15 ,  A01D101/00

Abstract: A method for autonomous mower navigation includes receiving a return-to-zero encoded signal including a pseudo-random sequence, transforming the received signal to a non-return-to-zero representation, digitally sampling the non-return-to-zero signal representation in a time domain, filtering the sampled signal utilizing a reference data array based on the return-to-zero encoded signal to produce a filter output, and determining a location of the autonomous mower relative to a defined work area based on an evaluation of the filter output.