US 12,339,641 B2
Distributed system and data transmission method
Tadanobu Toba, Tokyo (JP); Kenichi Shimbo, Tokyo (JP); Yutaka Uematsu, Tokyo (JP); and Takumi Uezono, Tokyo (JP)
Assigned to Hitachi, Ltd., Tokyo (JP)
Filed by Hitachi, Ltd., Tokyo (JP)
Filed on Oct. 19, 2021, as Appl. No. 17/451,424.
Claims priority of application No. 2020-193217 (JP), filed on Nov. 20, 2020.
Prior Publication US 2022/0163942 A1, May 26, 2022
Int. Cl. G05B 19/406 (2006.01); G06F 11/07 (2006.01); G06F 11/34 (2006.01); G06F 11/30 (2006.01)
CPC G05B 19/406 (2013.01) [G06F 11/0709 (2013.01); G06F 11/3495 (2013.01); G05B 2219/32356 (2013.01); G06F 11/3006 (2013.01); G06F 11/3058 (2013.01); G06F 11/3409 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A distributed system comprising:
an edge device that is at least one of an automatically operable moving body and equipment; and
a diagnostic data computer, wherein
the edge device includes an in-edge controller including at least a processing unit, and a system element to be monitored by the in-edge controller,
the processing unit diagnoses presence or absence of an abnormality in the processing unit due to an abnormality occurring in the system element, generates first diagnostic data indicating presence or absence of the abnormality in the processing unit, aggregates the first diagnostic data for each type of abnormal state as aggregated first diagnostic data, converts the aggregated first diagnostic data into second diagnostic data indicating a type of the abnormality in the processing unit and being independent of the configuration of the edge device, and transmits the second diagnostic data to the diagnostic data computer, which analyzes a cause of the abnormality in the processing unit based on the second diagnostic data,
the diagnostic data computer transmits a collection timing change command instructing a change of a transmission period of the second diagnostic data to the edge device, and
the collection timing change command is transmitted to the edge device based on a determination that a change in an error frequency of a data communication portion in the system element exceeds a predetermined threshold value.