Judgment apparatus, judgment system, and judgment method

Patent metadata

Field	Value
Publication number	US-9405946-B2
Application number	US-201213614271-A
Country	US
Kind code	B2
Filing date	Sep 13, 2012
Priority date	Mar 17, 2010
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

A judgment apparatus includes a storage configured to store first reference data representing data that a detector should output in a first area when a detection target passed the first area, and second reference data representing data that the detector should output in the first area when the detection target passed a second area being different from the first area; and a processor to perform processes of: obtaining data from the detector outputting, in a time-series manner, data according to a detection condition of the detection target passing the first area or the second area; judging a degree of similarity between data obtained by the obtaining and the first and second reference data stored in the storage; and judging whether or not the detection target passed the first area, based on the judgment result by the judging the degree of similarity.

First claim

What is claimed is:

1. A judgment apparatus comprising:
a storage configured to store first reference data representing data that a radio frequency identification (RFID) reader outputs in a first area when a detection target to which an RFID tag is attached passed the first area, and second reference data representing data that the RFID reader outputs in the first area when the detection target passed a second area that is adjacent to the first area; and
a processor to perform processes of:
obtaining data from the RFID reader outputting, in a time-series manner, data according to a detection condition of the detection target passing the first area or the second area;
judging a degree of similarity between data obtained by the obtaining and the first reference data and the second reference data stored in the storage; and
judging whether or not the detection target passed the first area, based on a result of the judging of the degree of similarity.

2. The judgment apparatus according to claim 1 , the processes comprising:
calculating a probability that the detection target passed the first area, based on the judgment result,
wherein the calculating is configured to calculate the probability higher when the degree of similarity between the data and the first reference data is higher, and to calculate the probability lower when the degree of similarity between the data and the second reference data is higher; and
the judging whether or not the detection target passed the first area is configured to perform judgment according to the probability calculated by the calculating.

3. The judgment apparatus according to claim 1 , wherein
the judging whether or not the detection target passed the first area is configured to make a judgment that the detection target passed the first area, when the probability calculated from the degree of similarity between the data and the first reference data and the degree of similarity between the data and the second reference data is higher than the probability calculated from the degree of similarity between the data and the first and second reference data stored in a similar manner in the second area.

4. A judgment system comprising:
a RFID reader configured to output, in a time-series manner, data according to a detection condition of a detection target to which an RFID tag is attached passing a first area or a second area that is adjacent to the first area;
a storage configured to store first reference data representing data that the RFID reader outputs in the first area when the detection target passed the first area, and second reference data representing data that the RFID reader outputs in the first area when the detection target passed the second area;
a processor to perform processes of:
obtaining data that the RFID reader outputs;
judging a degree of similarity between data obtained by the obtaining and the first and second reference data stored in the storage; and
judging whether or not the detection target passed the first area, based on a result of the judging of the degree of similarity.

5. The judgment system according to claim 4 , the processes comprising:
calculating a probability that the detection target passed the first area, based on the judgment result,
wherein
the calculating is configured to calculate the probability higher when the degree of similarity between the data and the first reference data is higher, and to calculate the probability lower when the degree of similarity between the data and the second reference data is higher; and
the judging whether or not the detection target passed the first area is configured to perform judgment according to the probability calculated by the calculating.

6. The judgment system according to claim 4 , wherein
the judging whether or not the detection target passed the first area is configured to make a judgment that the detection target passed the first area, when the probability calculated from the degree of similarity between the data and the first reference data and the degree of similarity between the data and the second reference data is higher than the probability calculated from the degree of similarity between the data and the first and second reference data stored in a similar manner in the second area.

7. A judgment method, comprising:
storing, in a storage, first reference data representing data that a RFID reader outputs in a first area when a detection target to which an RFID tag is attached passed the first area, and second reference data representing data that the RFID reader outputs in the first area when the detection target passed a second area that is adjacent to the first area;
obtaining, by a processor, data from the RFID reader outputting, in a time-series manner, the data according to a detection condition of the detection target passing the first area or the second area;
calculating, by the processor, a degree of similarity between the data obtained and the first reference data representing data that the RFID reader outputs when the detection target passed the first area stored in the storage, and a degree of similarity between the data and the second reference data representing the data that the RFID reader when the detection target passed the second area stored in the storage; and
making, by the processor, a judgment that the detection target passed the first area, when the degree of similarity between the data and the first reference data is higher than the degree of similarity between the data and the second reference data.

8. A non-transitory computer-readable recording medium having stored therein a program for causing a computer to execute a process, the process comprising:
storing, in a storage, first reference data representing data that a RFID reader outputs in a first area when a detection target to which an RFID tag is attached passed the first area, and second reference data representing data that the RFID reader outputs in the first area when the detection target passed a second area that is adjacent to the first area;
judging a degree of similarity between data obtained from the RFID reader outputting data according to a detection condition of the detection target in a time-series manner and the first reference data representing data that the RFID reader outputs when the detection target passed the first area stored in the storage, and the degree of similarity between the data and the second reference data representing data that the RFID reader outputs when the detection target passed the second area stored in the storage; and
judging whether or not the detection target passed the first area, based on a result of the judging.

Assignees

• Sugano Hiroyasu
• Shiotsu Shinichi
• Fujitsu Ltd

Inventors

• Sugano Hiroyasu
• Shiotsu Shinichi

Classifications

• G06K7/10435

  the interrogation device being positioned close to a conveyor belt or the like on which moving record carriers are passing (conveying in accordance with bodily destination marks, see B65G47/46, sorting of objects carrying identity markings, see B07C5/34) · CPC title

• G06K7/10356 Primary

  using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas · CPC title

• G06K7/10425

  the interrogation device being arranged for interrogation of record carriers passing by the interrogation device · CPC title