Management device and management system
AssigneeToshiba Tec Kabushiki Kaisha
InventorJun Yaginuma
Life of this patent
Estimating the term…
Abstract
A management device includes an antenna, a reader, and a processor. The antenna is positionable at a position near a conveyance path. The reader is configured to output wireless tag information based on a radio wave generated by a wireless tag and received by the antenna. The processor is configured to detect passage of an article through a predetermined position on the conveyance path based on an identifier of the article included in the wireless tag information and sign change of a slope of the phase of the radio wave, determine a position of the article based on a timing of the sign change, and store the determined position of the article in correspondence with the identifier of the article.
Claims14
A management device, comprising:
- an antenna positionable at a position near a conveyance path;
- a reader configured to output wireless tag information based on a radio wave received by the antenna;
- and
- a processor configured to:
- detect sign change of a slope of a phase of the radio wave received by the antenna, the sign change including change of the slope of the phase of the radio wave from a minus value to a plus value or from a plus value to a minus value,
- detect passage of an article through a predetermined position on the conveyance path based on an identifier of the article included in the wireless tag information and the detected sign change in the slope of the phase of the radio wave received by the antenna, the article including a wireless tag that outputs the radio wave,
- determine a position of the article based on a conveyed distance of the article since the detected sign change in the slope of the phase of the radio wave received by the antenna,
- store the position of the article in correspondence with the identifier of the article, and
- cause a conveyance speed of articles along the conveyance path to be decreased if the article identified by the identifier is a predetermined article.
An operating method of a management device including an antenna positioned near a conveyance path and a reader configured to output wireless tag information based on a radio wave received by the antenna, the method comprising:
- detecting sign change of a slope of a phase of the radio wave received by the antenna, the sign change including change of the slope of the phase of the radio wave from a minus value to a plus value or from a plus value to a minus value;
- detecting passage of an article through a predetermined position on the conveyance path based on an identifier of the article included in the wireless tag information and the detected sign change in the slope of the phase of the radio wave, the article including a wireless tag that outputs the radio wave;
- determining a position of the article based on a conveyed distance of the article since the detected sign change in the slope of the phase of the radio wave received by the antenna;
- storing the position of the article in correspondence with the identifier of the article;
- and
- decreasing a conveyance speed of articles along the conveyance path if the article identified by the identifier is a predetermined article.
Dependencies are inferred from the claim text.