Log collecting device, industrial robot, and electric-powered press

Patent metadata

Field	Value
Publication number	US-10921776-B2
Application number	US-201716309268-A
Country	US
Kind code	B2
Filing date	Feb 9, 2017
Priority date	Jun 24, 2016
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

A log collecting device enabling a grasp of an actuation status based on event logs without a restriction regarding a memory, and an industrial robot and an electric-powered press including the same are provided. A log collecting device 1 is provided on, for example, an industrial robot and an electric-powered press, stores an event log 11 indicating details of an event occurred at an apparatus in a volatile memory 3 , creates the collection data 12 that is a collection of the event logs 11 , stores this collection data 12 in the volatile memory 3 , and deletes the event logs 11 collected as the collection data 12 from the volatile memory 3.

First claim

The invention claimed is:

1. A log collecting device comprising:
a volatile memory storing event logs indicating details of an event occurred at an apparatus;
a collection processing unit creating collection data comprising a plurality of frequency distribution tables that counts a number of occurrences of the event log for each time segment; and
a memory controlling unit storing the plurality of frequency distribution tables in the volatile memory, and deleting the event logs collected as the plurality of frequency distribution tables from the volatile memory,
wherein the collection processing unit creates each of the plurality of frequency distribution tables that has a length of the time segment of a class different from each other and only has the class that contains the current time point, except for the frequency distribution table that has the class configured by a longest time segment.

2. The log collecting device according to claim 1 , wherein the plurality of collection data are an hourly report that has the time segment of an hour, a daily report that has the time segment of a day, a weekly report that has the time segment of a week, a monthly report that has the time segment of a month, and a yearly report that has the time segment of a year.

3. The log collecting device according to claim 1 , wherein:
the collection processing unit refers to collection data that has the class with the short time segment, and creates the collection data that has the class with the longest time segment; and
the memory controlling unit deletes the classes other than the class that contains the current time point from the collection data that has the class with the short time segment after the collection data that has the class with the longest time segment is created.

4. The log collecting device according to claim 1 , wherein the collection processing unit creates the collection data that have unequal lengths of the time segments of the classes.

5. The log collecting device according to claim 1 , further comprising a nonvolatile memory,
wherein the memory controlling unit stores the event logs and the collection data in the volatile memory, and stores the collection data in the nonvolatile memory when a back-up timing occurs.

6. The log collecting device according to claim 5 , wherein the back-up timing is an occurrence of a specific event.

7. The log collecting device according to claim 1 , further comprising an interface capable of reading out and writing in a portable memory medium,
wherein the memory controlling unit stores the event logs and the collection data in the volatile memory, and stores the collection data in the portable memory medium when the portable memory medium is connected to the interface.

8. An industrial robot comprising the log collecting device according to claim 1 .

9. An electric-powered press comprising the log collecting device according to claim 1 .

Assignees

• Janome Sewing Machine Co Ltd

Inventors

• Hiruma Kenichiro

Classifications

• B30B15/00

  Details of, or accessories for, presses; Auxiliary measures in connection with pressing (safety devices F16P) · CPC title

• B25J13/00 Primary

  Controls for manipulators (programme controls B25J9/16) · CPC title

• G05B19/418

  Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] · CPC title

• G05B23/02

  Electric testing or monitoring · CPC title

• Y02P90/02

  Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS] · CPC title