Plant state displaying apparatus, plant state displaying system, and method of displaying plant state

Patent metadata

Field	Value
Publication number	US-10788820-B2
Application number	US-201715703341-A
Country	US
Kind code	B2
Filing date	Sep 13, 2017
Priority date	Sep 16, 2016
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

A plant state displaying apparatus displaying information representing a state of a plant includes a generator that: acquires plant information from at least one of devices, apparatuses, and facilities installed in the plant; calculates a state value representing the state of the plant using the plant information; and generates a plant state diagram in which at least one of a color and a density of at least one of devices, apparatuses, and facilities from which the plant information is acquired is changed according to magnitude of the state value; and a display that displays the plant state diagram generated by the generator as the information representing the state of the plant.

First claim

What is claimed is:

1. A plant state displaying apparatus displaying information representing a state of a plant, the plant state displaying apparatus comprising:
a generator that:
acquires plant information from at least one of devices, apparatuses, and facilities installed in the plant;
calculates a state value representing a change in the state of the plant using the plant information; and
generates a plant state diagram in which at least one of a color and a density of the at least one of devices, apparatuses, and facilities from which the plant information is acquired is changed according to magnitude of the state value; and

a display that displays the plant state diagram generated by the generator as the information representing the state of the plant, wherein
the generator further generates the plant state diagram in which information representing an operation range of a worker operating in the plant is superimposed on a diagram representing the plant.

2. The plant state displaying apparatus according to claim 1 , further comprising:
a setter that sets a display condition for displaying the plant state diagram on the display,
wherein the generator generates the plant state diagram according to the display condition set by the setter.

3. The plant state displaying apparatus according to claim 2 , wherein
the setter sets a range of the plant state diagram to be displayed on the display as the display condition.

4. The plant state displaying apparatus according to claim 2 , wherein
the setter sets at least one of a first condition, a second condition, and a third condition in the plant state diagram,
the first condition defines a type of the at least one of devices, apparatuses, and facilities represented with the at least one of a color and a density changed,
the second condition defines a degree of importance of the at least one of devices, apparatuses, and facilities represented with the at least one of a color and a density changed, and
the third condition defines a degree of degradation of the at least one of devices, apparatuses, and facilities represented with the at least one of a color and a density changed.

5. The plant state displaying apparatus according to claim 1 , further comprising:
a difference calculator that calculates the state value, wherein
the state value is a difference between the plant information acquired through a network and a reference value.

6. The plant state displaying apparatus according to claim 1 , further comprising:
a degradation calculator that calculates a degree of degradation of the at least one of devices, apparatuses, and facilities installed in the plant as the state value using the plant information acquired through a network.

7. The plant state displaying apparatus according to claim 6 , further comprising:
a simulator that simulates the plant,
wherein the degradation calculator calculates a degree of degradation of the at least one of devices, apparatuses, and facilities installed in the plant using a result of the simulation performed by the simulator.

8. The plant state displaying apparatus according to claim 1 , further comprising:
a storage;
wherein the generator stores the generated plant state diagram in the storage together with time information representing generation time, reads the plant state diagram stored in the storage based on instructions from an outside, and displays the read plant state diagram on the display based on the time information.

9. The plant state displaying apparatus according to claim 8 , wherein
the generator performs animation display of the plant state diagrams read from the storage on the display in order of a time series.

10. The plant state displaying apparatus according to claim 8 , wherein
the generator displays a plant state diagram represented with at least one of the color and the density of the at least one of devices, apparatuses, and facilities from which the plant information is acquired being changed according to magnitude of a numerical value calculated using the state value within a predetermined period.

11. A plant state displaying system displaying information representing a state of a plant, the plant state displaying system comprising:
a server apparatus that:
acquires plant information from at least one of devices, apparatuses, and facilities installed in the plant;
calculates a state value representing a change in the state of the plant using the plant information; and
generates a plant state diagram in which at least one of a color and a density of the at least one of devices, apparatuses, and facilities from which the plant information is acquired is changed according to magnitude of the state value; and

a display device that is connected to the server apparatus through a network and that displays the plant state diagram generated by the server apparatus as the information representing the state of the plant, wherein
the server apparatus further generates the plant state diagram in which information representing an operation range of a worker operating in the plant is superimposed on a diagram representing the plant.

12. A plant state displaying method displaying information representing a state of a plant, the plant state displaying method comprising:
acquiring plant information from at least one of devices, apparatuses, and facilities installed in the plant;
calculating a state value representing a change in the state of the plant using the plant information;
generating a plant state diagram in which at least one of a color and a density of the at least one of devices, apparatuses, and facilities from which the plant information is acquired is changed according to magnitude of the state value; and
displaying the generated plant state diagram as the information representing the state of the plant, wherein
in the generated plant state diagram, information representing an operation range of a worker operating in the plant is superimposed on a diagram representing the plant.

13. The plant state displaying method according to claim 12 , further comprising:
setting a display condition for displaying the plant state diagram,
wherein generating the plant state diagram includes generating the plant state diagram according to the display condition set.

14. The plant state displaying method according to claim 13 , wherein
setting the display condition includes setting a range of the plant state diagram to be displayed as the display condition.

15. The plant state displaying method according to claim 13 , wherein
setting the display condition includes setting at least one of a first condition, a second condition, and a third condition in the plant state diagram, the first condition defines a type of the at least one of devices, apparatuses, and facilities represented with the at least one of a color and a density changed, the second condition defines a degree of importance of the at least one of devices, apparatuses, and facilities represented with the at least one of a color and a density changed, and the third condition defines a degree of degradation of the at least one of devices, apparatuses, and facilities represented with the at least one of a color and a density changed.

16. The plant state displaying method according to claim 12 , wherein
the state value is calculated as a difference between the plant information acquired through a network and a reference value.

17. The plant state displaying method according to claim 12 , wherein
calculating the state value includes calculating a degree of degradation of th

Assignees

• Yokogawa Electric Corp

Inventors

• Seki Tatenobu
• Yamamoto Mitsuhiro
• Hidaka Yoshihisa
• Ema Nobuaki

Classifications

• G05B23/0267 Primary

  Fault communication, e.g. human machine interface [HMI] · CPC title

• G05B23/0221

  Preprocessing measurements, e.g. data collection rate adjustment; Standardization of measurements; Time series or signal analysis, e.g. frequency analysis or wavelets; Trustworthiness of measurements; Indexes therefor; Measurements using easily measured parameters to estimate parameters difficult to measure; Virtual sensor creation; De-noising; Sensor fusion; Unconventional preprocessing inherently present in specific fault detection methods like PCA-based methods · CPC title

• G07C3/005 Primary

  during manufacturing process · CPC title

• G06F16/9038

  Presentation of query results · CPC title

• G06Q50/04

  Manufacturing · CPC title