Sequence based mover identification
AssigneeRockwell Automation Technologies, Inc.
InventorsXikai Sun, Linglai Li, Peter M. Smit, Oliver C. Haya, Mark R. Cooper, Nanwei Yao
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Abstract
The present invention provides a mover traveling along a track, the mover system having a mover frame supporting a mover sensor element and a track frame providing a path for which the mover frame travels and supporting track sensor elements for interacting with the mover sensor element of the mover frame. The interaction between the mover sensor element and track sensor elements provides an identification signal of each mover and the identification signal of each mover on the track is arranged according to a cyclic sequence where unique contiguous substrings occur only once within the sequence.
Claims19
A mover system providing a mover traveling along a track, the mover system comprising:
- a mover frame supporting a mover sensor element;
- a track frame providing a path along which the mover frame travels and supporting track sensor elements for interacting with the mover sensor element of the mover frame;
- wherein the interaction between the mover sensor element and track sensor elements provides an identification signal for each mover that is not unique to that mover;
- and
- wherein the identification signal for each mover on the track follows a cyclic sequence where contiguous substrings of the cyclic sequence of a predetermined length less than the length of the cyclic sequence occur only once within the sequence.
A mover system providing a mover traveling along a track, the mover system comprising:
- a mover frame supporting a magnetic element;
- a track frame providing a path for which the mover frame travels and supporting sensor elements for interacting with the magnetic element of the mover frame;
- wherein the interaction between the magnetic element and sensor elements provides a magnetic character for each mover;
- and
- wherein the magnetic characters of the movers on the track are arranged according to a cyclic sequence where unique contiguous substrings occur only once within the sequence.
A method of identifying movers supporting magnetic elements on a track assembly supporting sensor elements, the method comprising the steps of:
- mounting the movers to the track assembly;
- receiving a magnetic character of the sensor elements to produce a sequence;
- sampling consecutive characters of the sequence to define a unique subsequence;
- and
- determining an identity of each mover according to the unique subsequence.
Dependencies are inferred from the claim text.