IP Library › Granted Patent US 12,526,064
Granted Patent B2
US 12,526,064 · App. 17/867,757 · Granted Jan 13, 2026

System and method for estimating radio performance of manufacturing site

Inventors: Go Ono (Tokyo, JP); Hajime Kanzaki (Tokyo, JP); Eriko Takeda (Tokyo, JP)
Assignee: HITACHI, LTD.
H04B17/318H04B17/3913H04W16/225
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Quick Facts
Patent No.
US 12,526,064
App. No.
17/867,757
Granted
Jan 13, 2026
Kind
B2
Abstract

The system stores process information including information on processes before starting at a manufacturing site, and management information that manages radio performance estimation methods usable for each of applications and information for determining a processing time of each of the radio performance estimation methods. The process information includes information on applications used in each process of the processes and information on a time associated with each process. The system refers to the process information and the management information so as to determine radio performance estimation methods usable in each process, and refers to the process information and the management information so as to select a wireless communication method, through which radio performance estimation processing is completed by a time associated with each process, from the radio performance estimation methods usable in each process.

Claims (41)

1 . A system for estimating radio performance of a manufacturing site, the system comprising:

one or more storage devices; and

one or more arithmetic devices,

wherein the one or more storage devices store:

process information including information on one or more processes before starting at the manufacturing site; and

management information that manages one or more radio performance estimation methods usable for each of a plurality of applications and information for determining a processing time of each of the one or more radio performance estimation methods,

wherein the process information includes information on one or more applications used in each process of the one or more processes and information on a time associated with each process, and

wherein the one or more arithmetic devices are configured to:

refer to the process information and the management information so as to determine one or more radio performance estimation methods usable in each process, and

refer to the process information and the management information so as to select a wireless communication method, through which radio performance estimation processing is completed by a time associated with each process, from the one or more radio performance estimation methods usable in each process,

wherein the process information includes position information on an installed object including a wireless communication device in each process,

wherein the radio performance estimation method used in the one or more processes includes a first propagation simulation of a radio wave and a second propagation simulation with lower accuracy and more calculation processing than the first propagation simulation, and

wherein the first propagation simulation and the second propagation simulation execute a simulation based on the position information on the installed object.

2 . The system according to claim 1 , wherein

the radio performance estimation method used in the one or more processes includes quotation of a radio performance estimation value from a past radio performance estimation result.

3 . The system according to claim 2 , wherein

as for the quotation of the radio performance estimation value, the one or more arithmetic devices quote a radio performance estimation value of a process of the same product as a target process.

4 . The system according to claim 1 , wherein

the information for determining the processing time indicates a relationship between a processing time of the first propagation simulation and the second propagation simulation and the number of installed objects.

5 . The system according to claim 4 , wherein

the one or more arithmetic devices

extract a part of installed objects from installed objects of a selected process, and

determine a time required for the second propagation simulation for the selected process based on the number of the part of the installed objects and the information for determining the processing time.

6 . The system according to claim 5 , wherein

the one or more arithmetic devices extract the part of the installed objects based on a positional relationship between a wireless communication device in the selected process and another installed object.

7 . The system according to claim 5 , wherein

the one or more arithmetic devices determine a time required for the first propagation simulation for the selected process based on the information for determining the processing time under a condition that all installed objects of the selected process are present.

8 . The system according to claim 5 , wherein

the one or more arithmetic devices extract the part of installed objects based on an extraction condition set for each application or each wireless communication method.

9 . The system according to claim 1 , wherein

the process information includes information on a plurality of processes scheduled to be executed at the manufacturing site, and

the one or more arithmetic devices select a combination of radio performance estimation methods of the plurality of processes, which has a longest total calculation time required for radio performance estimation of the plurality of processes, under a condition that the radio performance estimation processing on each process of the plurality of processes is completed by a time associated with each process.

10 . A method of estimating radio performance of a manufacturing site by a system,

the system storing:

process information including information on one or more processes before starting at the manufacturing site; and

management information that manages one or more radio performance estimation methods usable for each of a plurality of applications and information for determining a processing time of each of the one or more radio performance estimation methods, the process information including information on one or more applications used in each process of the one or more processes and information on a time associated with each process, the method comprising:

referring to, by the system, the process information and the management information so as to determine one or more radio performance estimation methods usable in each process; and

referring to, by the system, the process information and the management information so as to select a wireless communication method, through which radio performance estimation processing is completed by a time associated with each process, from the one or more radio performance estimation methods usable in each process,

wherein the process information includes position information on an installed object including a wireless communication device in each process,

wherein the radio performance estimation method used in the one or more processes includes a first propagation simulation of a radio wave and a second propagation simulation with lower accuracy and more calculation processing than the first propagation simulation, and

wherein the first propagation simulation and the second propagation simulation execute a simulation based on the position information on the installed object.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 19, 2022
From: ONO, GO; KANZAKI, HAJIME; TAKEDA, ERIKO
To: HITACHI, LTD.
Reel/Frame 060544/0062 →
Priority Claims (1)
JP 2021-145205 · Sep 7, 2021 · national
Continuity (1)
Related Publication 20230075902A1 · Mar 9, 2023
References Cited (11)
US 10548025B2 · Jobe et al. · 2020 [cited by applicant]
US 20060140146A1 · Funk et al. · 2006 [cited by applicant]
US 20150109940A1 · Okhravi · 2015 [cited by examiner]
US 20190082328A1 · Garcia et al. · 2019 [cited by applicant]
US 20200367094A1 · Eriksson · 2020 [cited by examiner]
US 20230023406A1 · Hasegawa · 2023 [cited by examiner]
DE 10354472A1 · 2005 [cited by applicant]
DE 102008028541A1 · 2010 [cited by applicant]
DE 112020005477T5 · 2022 [cited by applicant]
JP 2019509685A · 2019 [cited by applicant]
German Office Action received in corresponding German Application No. 10 2022 119 881.2 dated Jan. 20, 2025. [cited by applicant]