Position detection device and conveyance device
AssigneeDmg Mori Co., Ltd.
InventorsShigeru Ishimoto, Kayoko Taniguchi, Chihiro Murayama
Life of this patent
Estimating the term…
Abstract
Data is utilized more efficiently and effectively. A position detection device includes a plurality of scales that each record absolute data embedded with a scale ID for identifying a scale, a detector that detects the absolute data from each of the plurality of scales, and an extractor that extracts, from the detected absolute data, the scale ID and position data representing the position of the scale.
Claims11
A position detection device comprising:
- a plurality of scales that each records absolute data including a scale ID for separately identifying each of the plurality of scales and position data representing a position on any one of the plurality of scales;
- a detector that detects the absolute data from each of said plurality of scales;
- an extractor that is configured to extract, from the absolute data detected by the detector, the scale ID and the position data,
- wherein said extractor extracts the position data by offsetting an offset value corresponding to the scale ID from the absolute data.
A position detection device comprising:
- a plurality of scales that each records absolute data embedded with a scale ID for separately identifying each of the plurality of scales;
- a plurality of detectors that detect the absolute data from each of said plurality of scales;
- an extractor that is configured to extract, from the absolute data detected by the plurality of detectors, the scale ID and position data representing a position on any one of the plurality of scales, wherein
- said plurality of detectors comprises at least two detectors, and
- said extractor extracts the scale ID by comparing the absolute data detected by said at least two detectors.
A position detection device comprising:
- a plurality of scales that each records absolute data embedded with a scale ID for separately identifying each of the plurality of scales;
- a detector that detects the absolute data from each of said plurality of scales;
- an extractor is configured to extract, from the absolute data detected by the detector, the scale ID and position data representing a position on any one of the plurality of scales, wherein
- each of said plurality of scales includes a first data area for embedding the scale ID and a second data area for embedding the position data, and
- said extractor extracts the scale ID using the absolute data detected from the first data area, and extracts the position data using the absolute data detected from the second data area.
A conveyance device comprising:
- a plurality of conveyors each including a scale that records absolute data which includes a conveyor ID for separately identifying each of the plurality of conveyors and position data representing a position on any one of the plurality of conveyors;
- a detector that detects the absolute data from the scale of each of said plurality of conveyors;
- and
- an extractor that is configured to extract, from the absolute data detected by the detector, the conveyor ID and the position data,
- wherein said extractor extracts the position data by offsetting an offset value corresponding to the conveyor ID from the absolute data.
A position detection device comprising:
- a plurality of scales that each records absolute data including a scale ID for separately identifying each of the plurality of scales and position data representing a position on any one of the plurality of scales;
- a detector that detects the absolute data from each of said plurality of scales;
- an extractor that is configured to extract, from the absolute data detected by the detector, the scale ID and the position data,
- wherein
- each of said plurality of scales includes specific absolute data, and
- said extractor comprises a storage that stores a correspondence between the specific absolute data and the scale ID, and
- wherein said extractor extracts the position data by offsetting an offset value corresponding to the scale ID from the absolute data.
Dependencies are inferred from the claim text.