IP Library › Granted Patent US 12,360,014
Granted Patent B2
US 12,360,014 · App. 17/976,630 · Granted Jul 15, 2025

Production line analyzer and visualizer for line performance improvement

Inventors: Wei Yuan (Novi, MI); Yi-Chu Chang (Farmington Hills, MI); Lili Zheng (Novi, MI)
Assignee: Hitachi, Ltd.
G01M99/005
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Quick Facts
Patent No.
US 12,360,014
App. No.
17/976,630
Granted
Jul 15, 2025
Kind
B2
Abstract

In example implementations described herein, there are systems and methods enabling manufacturers to become more efficient by providing a digital tool to track, visualize, quantify, and notify production bottlenecks for quick actions. Some implementations include an apparatus including a processor configured to analyze time-stamp data collected associated with a plurality of elements of an industrial process. The processor may be configured to generate, based on the analyzed time-stamp data, a color coded visualization of the industrial process, where generating the color coded visualization includes associating each of the plurality of elements of the industrial process with a corresponding color indicating a state of an element in the plurality of elements of the industrial process. The processor may further be configured to present, via a display, the generated color coded visualization of the industrial process.

Claims (40)

1. A method comprising:

analyzing time-stamp data collected associated with a plurality of elements of an industrial process to generate a set of times associated with each element in the plurality of elements, wherein the industrial process is a production line, wherein the plurality of elements of the industrial process comprises one or more of production stations in the production line and a set of transitions between the production stations, wherein the set of times associated with each element in the plurality of elements relates to a time duration associated with a product passing through the element, and wherein each element in the plurality of elements is associated with a corresponding characteristic time;

generating, based on the set of times associated with each element in the plurality of elements, a color coded visualization of the industrial process, wherein generating the color coded visualization comprises associating, based on the corresponding characteristic time, each of the plurality of elements of the industrial process with a corresponding color indicating a state of an element in the plurality of elements of the industrial process, wherein the state of each element relates to the set of times associated with the element, and wherein the corresponding color indicating the state of the element is selected from a color gradient and times associated with endpoints of the color gradient are based on the corresponding characteristic time; and

presenting, via a display, the color coded visualization of the industrial process.

2. The method of claim 1 , wherein a set of threshold times associated with a corresponding set of colors for indicating the state of each element in the plurality of elements is defined, wherein the set of threshold times for each element is based on the corresponding characteristic time for the element.

3. The method of claim 2 , wherein each threshold time in the set of threshold times for a particular element is the corresponding characteristic time plus an offset time that is based on a factor multiplied by the corresponding characteristic time.

4. The method of claim 1 , wherein the time-stamp data includes data related to each element of the industrial process for a set of products associated with the production line.

5. The method of claim 4 , wherein the time-stamp data related to each element of the industrial process comprises a first time-stamp indicating a first time at which the element becomes associated with each product in the set of products and a second time-stamp indicating a second time at which the product is transferred to a next element and the set of times associated with each element in the plurality of elements is corresponding a set of times that a corresponding set of products is associated with the element in the plurality of elements.

6. The method of claim 1 , further comprising:

generating, based on the time-stamp data, a prediction as to one or more of a production rate of the industrial process, a production target of the industrial process, or a failure of at least one element of the plurality of elements for presentation along with the color coded visualization of the industrial process.

7. The method of claim 1 , wherein the time-stamp data further comprises one or more of machine alarm information, operational characteristics associated with one or more elements in the plurality of elements, first information regarding an environment of the industrial process, or second information regarding an output of the industrial process.

8. The method of claim 1 , wherein the color coded visualization of the industrial process comprises one or more of a simplified block model of the plurality of elements of the industrial process wherein each block representing a corresponding element in the plurality of elements is associated with the corresponding color or a digital twin model of the plurality of elements of the industrial process wherein each element in the plurality of elements is overlaid with the corresponding color indicating the state of the element of the industrial process.

9. The method of claim 1 , further comprising:

identifying, based on the time-stamp data, one or more of a set of one or more bottlenecks associated with the industrial process, a set of warnings, or a set of recommendations for presentation to a process administrator of the industrial process; and

presenting, along with the color coded visualization of the industrial process, the identified one or more of the set of one or more bottlenecks associated with the industrial process, the set of warnings, or the set of recommendations.

10. The method of claim 9 , wherein the one or more of the set of one or more bottlenecks associated with the industrial process, the set of warnings, or the set of recommendations is associated with at least one automated response, the method further comprising:

outputting a command to at least one element of the plurality of elements of the industrial process to implement the at least one automated response.

11. An apparatus comprising:

a memory; and

at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:

analyze time-stamp data collected associated with a plurality of elements of an industrial process to generate a set of times associated with each element in the plurality of elements, wherein the industrial process is a production line, wherein the plurality of elements of the industrial process comprises one or more of production stations in the production line and a set of transitions between the production stations, wherein the set of times associated with each element in the plurality of elements relates to a time duration associated with a product passing through the element, and wherein each element in the plurality of elements is associated with a corresponding characteristic time;

generate, based on the set of times associated with each element in the plurality of elements, a color coded visualization of the industrial process, wherein generating the color coded visualization comprises associating, based on the corresponding characteristic time, each of the plurality of elements of the industrial process with a corresponding color indicating a state of an element in the plurality of elements of the industrial process, wherein the state of each element relates to the set of times associated with the element, and wherein the corresponding color indicating the state of the element is selected from a color gradient and times associated with endpoints of the color gradient are based on the corresponding characteristic time; and

present, via a display, the color coded visualization of the industrial process.

12. The apparatus of claim 11 ,

wherein a set of threshold times for each element is based on the corresponding characteristic time for the element, and the corresponding color indicating the state of the element of the industrial process is based on the set of threshold times for the element.

13. The apparatus of claim 11 , the at least one processor further configured to:

identify, based on the time-stamp data, one or more of a set of one or more bottlenecks associated with the industrial process, a set of warnings, or a set of recommendations for presentation to a process administrator of the industrial process; and

present, along with the color coded visualization of the industrial process, the identified one or more of the set of one or more bottlenecks associated with the industrial process, the set of warnings, or the set of recommendations.

14. The apparatus of claim 13 , wherein the one or more of the set of one or more bottlenecks associated with the industrial process, the set of warnings, or the set of recommendations is associated with at least one automated response, the at least one processor further configured to:

output a command to at least one element of the plurality of elements of the industrial process to implement the at least one automated response.

15. A computer-readable medium storing computer executable code, the computer executable code when executed by a processor causes the processor to:

analyze time-stamp data collected associated with a plurality of elements of an industrial process to generate a set of times associated with each element in the plurality of elements, wherein the industrial process is a production line, wherein the plurality of elements of the industrial process comprises one or more of production stations in the production line and a set of transitions between the production stations, wherein the set of times associated with each element in the plurality of elements relates to a time duration associated with a product passing through the element, and wherein each element in the plurality of elements is associated with a corresponding characteristic time;

generate, based on the set of times associated with each element in the plurality of elements, a color coded visualization of the industrial process, wherein generating the color coded visualization comprises associating, based on the corresponding characteristic time, each of the plurality of elements of the industrial process with a corresponding color indicating a state of an element in the plurality of elements of the industrial process, wherein the state of each element relates to the set of times associated with the element, and wherein the corresponding color indicating the state of the element is selected from a color gradient and times associated with endpoints of the color gradient are based on the corresponding characteristic time; and

present, via a display, the color coded visualization of the industrial process.

16. The computer-readable medium of claim 15 ,

wherein a set of threshold times for each element is based on the corresponding characteristic time for the element, and the corresponding color indicating the state of the element of the industrial process is based on the set of threshold times for the element.

17. The computer-readable medium of claim 15 , that at least one processor further configured to:

identify, based on the time-stamp data, one or more of a set of one or more bottlenecks associated with the industrial process, a set of warnings, or a set of recommendations for presentation to a process administrator of the industrial process, wherein the one or more of the set of one or more bottlenecks associated with the industrial process, the set of warnings, or the set of recommendations is associated with at least one automated response;

present, along with the color coded visualization of the industrial process, the identified one or more of the set of one or more bottlenecks associated with the industrial process, the set of warnings, or the set of recommendations; and

output a command to at least one element of the plurality of elements of the industrial process to implement the at least one automated response.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 14, 2022
From: CHANG, YI-CHU
To: HITACHI, LTD.
Reel/Frame 061763/0493 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2022
From: YUAN, WEI; ZHENG, LILI
To: HITACHI, LTD.
Reel/Frame 061585/0663 →
Continuity (1)
Related Publication 20240142344A1 · May 2, 2024
References Cited (2)
US 20170308052A1 · Kajiyama · 2017 [cited by applicant]
US 20220342401A1 · Dunigan · 2022 [cited by examiner]