Information processing apparatus, information processing method, and information processing system

Patent metadata

Field	Value
Publication number	US-10732606-B2
Application number	US-201715584118-A
Country	US
Kind code	B2
Filing date	May 2, 2017
Priority date	May 13, 2016
Publication date	Aug 4, 2020
Grant date	Aug 4, 2020

Abstract

An information processing apparatus acquires detection information of a physical quantity that changes according to an operation state of a target device, transmits an acquisition request to the target device at predetermined time, to acquire context information relating to an operation status of the target device in response to the acquisition request, specifies a processing period in which the target device is in the middle of processing of the target object based on the predetermined time and the context information, extracts processing period detection information of the specified processing period from the detection information, and determines an occurrence of a defect relating to processing by the target device during the processing period based on the processing period detection information and the context information used for specifying the processing period.

First claim

The invention claimed is:

1. An information processing apparatus communicable with a target device that processes a target object, the information processing apparatus comprising:
processing circuitry configured to,
acquire detection information of a physical quantity that changes according to an operation state of the target device by transmitting an acquisition request to the target device,
receive, from the target device, context information in response to the acquisition request, the context information relating to an operation status of the target device,
specify a processing period in which the target device is processing the target object based on at least the context information and a transmission time associated with transmitting the acquisition request such that the processing period excludes at least one non-processing period,
extract processing period detection information from the detection information based on the processing period such that the extracted processing period detection information includes a first portion of the detection information and does not include at least one second portion of the detection information corresponding to the at least one non-processing period, and
determine an occurrence of a defect relating to processing by the target device based on the processing period detection information and the context information used for specifying the processing period.

2. The information processing apparatus according to claim 1 , wherein the processing circuitry is configured to start acquiring the detection information before receiving the context information.

3. The information processing apparatus according to claim 1 , wherein the processing circuitry is configured to,
transmit the acquisition request to the target device and record the transmission time associated with transmission of the acquisition request, the acquisition request requesting the context information,
store, in a first memory, the context information in association with the transmission time, and
select a period represented by the transmission time, corresponding to one or more items of the context information indicating that the target device is processing the target object, as the processing period.

4. The information processing apparatus according to claim 3 , wherein the processing circuitry is configured to,
store, in a second memory, the detection information in association with a detection time associated with acquiring the detection information, and
extract, from the detection information, the processing period detection information of a period represented by the detection time corresponding to the transmission time.

5. The information processing apparatus according to claim 4 , further comprising:
a timer configured to acquire at least, the detection time and the transmission time.

6. The information processing apparatus according to claim 1 , wherein the context information includes control information of each of a plurality of operation items of which types are different from each other, and the processing circuitry is configured to,
transmit the acquisition request to the target device and record the transmission time associated with transmission of the acquisition request, the acquisition request requesting the context information,
determine the context information satisfying a condition, as the context information representing processing the target object, the condition being a condition in which values represented by a plurality of operation items included in the context information each indicate that the target device is processing the target object, and
specify a period represented by the transmission time as the processing period.

7. The information processing apparatus according to claim 6 , wherein the processing circuitry is configured to,
set at least one of a number and the types of the operation items included in the context information acquired from the target device, and
transmit the acquisition request for the context information including values of the operation items of at least one of the number and the types that are set to the target device.

8. The information processing apparatus according to claim 7 , wherein the processing circuitry is configured to set at least one of the number and the types of the operation items included in the context information to be acquired at a next time, based on values represented by the operation items included in the context information acquired at a previous time.

9. The information processing apparatus according to claim 1 , wherein the processing circuitry is configured to,
select a model from among a plurality of models that are respectively set for one or more items of the context information and represent predicted detection information predicted to be detected when the target device normally operates in an operation state relating to the context information, and
determine the occurrence of the defect relating to processing by the target device during the processing period, using the model corresponding to the context information used for specifying the processing period and the processing period detection information.

10. The information processing apparatus according to claim 1 , wherein the detection information is sound data representing a sound or sound wave data representing a sound wave.

11. An information processing system comprising:
the information processing apparatus according to claim 1 ; and
the target device including,
a detector that detects the physical quantity; and
a transmitter that transmits the detection information of the physical quantity and the context information to the information processing apparatus.

12. The information processing apparatus according to claim 1 , wherein the processing circuitry is configured to,
calculate a likelihood of the occurrence of the defect relating to processing by the target device during the processing period based on the processing period detection information and a model corresponding to the context information, and
determine the occurrence of the defect relating to processing by the target device based on the likelihood of the occurrence of the defect and a threshold.

13. An information processing method for processing information relating to a target device that processes a target object, the method comprising:
acquiring detection information of a physical quantity that changes according to an operation state of the target device by transmitting an acquisition request to the target device;
receiving, from the target device, context information in response to the acquisition request, the context information relating to an operation status of the target device;
specifying a processing period in which the target device is processing the target object based on at least the context information and a transmission time associated with transmitting the acquisition request such that the processing period excludes at least one non-processing period;
extracting processing period detection information from the detection information based on the processing period such that the extracted processing period detection information includes a first portion of the detection information and does not include at least one second portion of the detection information corresponding to the at least one non-processing period; and
determining an occurrence of a defect relating to processing by the target device based on the processing period detection information and the context information used for specifying the processing period.

14. The information processing method according to claim 13

Assignees

• Higashi Haruomi
• Ricoh Co Ltd

Inventors

• Higashi Haruomi

Classifications

• G05B2219/37234

  Monitor tool before, after and during machining · CPC title

• G05B2219/37256

  Wear, tool wear · CPC title

• G05B19/406 Primary

  characterised by monitoring or safety (G05B19/19 takes precedence) · CPC title

• G05B2219/32222

  Fault, defect detection of origin of fault, defect of product · CPC title

• G05B19/4065 Primary

  Monitoring tool breakage, life or condition · CPC title