Tag measurement environment evaluation device
AssigneeDenso Wave Incorporated
InventorMasayuki OGAWA
Life of this patent
Estimating the term…
Abstract
A tag measurement environment evaluation device includes a processor and a memory storing a program. The program is configured to, when executed by the processor, cause the processor to determine a moving tag evaluation value of each of a plurality of wireless tags based on a radio wave transmitted from each of the wireless tags and received by a tag reader configured to communicate with each of the wireless tags, and determine whether a measurement environment is suitable for a moving tag detection based on the moving tag evaluation values.
Claims6
A tag measurement environment evaluation device comprising:
- a processor;
- and
- a memory storing a program, the program configured to, when executed by the processor, cause the processor to:
- determine a moving tag evaluation value of each of a plurality of wireless tags based on a radio wave transmitted from each of the wireless tags and received by a tag reader configured to communicate with each of the wireless tags, the wireless tags including one or more moving tags that move and one or more stop tags that stop, the moving tag evaluation value being a value indicating how much each of the wireless tags is likely to be the moving tag;
- determine a moving tag evaluation representative value that is a representative value of the moving tag evaluation values of the wireless tags;
- and
- determine, based on the moving tag evaluation representative value, whether a measurement environment is suitable for a moving tag detection in which the moving tags are detected while being distinguished from the stop tags.
A tag measurement environment evaluation device comprising:
- a processor;
- and
- a memory storing a program, the program configured to, when executed by the processor, cause the processor to:
- determine a moving tag evaluation value of each of a plurality of wireless tags based on a radio wave transmitted from each of the wireless tags and received by a tag reader configured to communicate with each of the wireless tags, the wireless tags including one or more moving tags that move and one or more stop tags that stop, the moving tag evaluation value being a value indicating how much each of the wireless tags is likely to be the moving tag;
- determine a feature of a distribution of the moving tag evaluation values of the moving tags as a moving tag evaluation feature value of the moving tags, and determine a feature of a distribution of the moving tag evaluation values of the stop tags as a moving tag evaluation feature value of the stop tags;
- calculate an inter-distribution distance that indicates a degree of separation between the moving tag evaluation feature value of the moving tags and the moving tag evaluation feature value of the stop tags;
- and
- determine whether a measurement environment is suitable for a moving tag detection, in which the moving tags are detected while being distinguished from the stop tags, by determining whether the inter-distribution distance is larger than a predetermined threshold value.
Dependencies are inferred from the claim text.