# US 2020/0401109 A1 · Plant evaluation device, plant evaluation method, and program

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- Number: US 2020/0401109 A1
- Document ID: US20200401109A1
- Status: Published application
- Kind: A1
- Application number: 16/975,533
- Filed: 2019-02-14
- Published: 2020-12-24
- Earliest claimed: 2018-02-27
- Assignees: Mitsubishi Heavy Industries, Ltd.
- Applicants: Mitsubishi Heavy Industries, Ltd.
- Inventors: Hisashi NISHIKI; Tomoyuki ENOMOTO; Hidenobu OTSU
- Web page: https://patentgrep.com/patent/US20200401109A1

## CPC

- G05B 19/418: 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]
- G05B 19/41875: {characterised by quality surveillance of production}
- G06Q 10/0639: Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q 50/04: Manufacturing
- G05B 23/0235: {based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold}
- G05B 2219/31414: Calculate amount of production energy, waste and toxic release
- Y02P 80/10: Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P 90/02: Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
- Y02P 90/30: Computing systems specially adapted for manufacturing
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

An acquisition unit acquires a quantity relating to an operating rate of a facility of a plant and a quantity relating to energy consumption of the facility. An index value specification unit specifies a higher index value as the energy consumption is lower, and a higher index value as the operating rate is higher, or a lower index value as the energy consumption is lower, and a lower index value as the operating rate is higher, based on the quantity acquired by the acquisition unit. An index value output unit outputs information relating to the index value.

## Claims

### Claim at position 1

1-9. (canceled)

### Claim 10

A plant evaluation device comprising:
an acquisition unit that is configured to acquire a quantity relating to an operating rate of a facility of a plant, and a quantity relating to energy consumption of the facility;
an index value specification unit that is configured to specify an index value that is higher as the energy consumption is lower and that is higher as the operating rate is higher, or an index value that is lower as the energy consumption is lower and that is lower as the operating rate is higher, based on the quantity acquired by the acquisition unit; and
an index value output unit that is configured to output information relating to the index value.

### Claim 11 (depends on 10)

The plant evaluation device according to claim 10,
wherein the index value specification unit specifies the index value from an overall facility effectiveness of the plant and an energy consumption rate of the plant based on the quantity acquired by the acquisition unit.

### Claim 12 (depends on 11)

The plant evaluation device according to claim 11,
wherein the index value output unit outputs the index value, the overall facility effectiveness, and the energy consumption rate, as information relating to the index value.

### Claim 13 (depends on 10)

The plant evaluation device according to claim 10,
wherein the acquisition unit further acquires a quantity relating to performance of the facility and a quantity relating to quality of the facility,
wherein the index value output unit outputs a production quantity of each production facility of the plant, a power consumption quantity, an operating rate, a quantity relating to performance, and a quantity relating to quality, as information relating to the index value.

### Claim 14 (depends on 10)

The plant evaluation device according to claim 10,
wherein the acquisition unit further acquires a quantity relating to performance of the facility, and
wherein the index value specification unit specifies the index value, based on the quantity relating to the performance.

### Claim 15 (depends on 10)

The plant evaluation device according to claim 10,
wherein the acquisition unit further acquires a quantity relating to quality of the facility, and
wherein the index value specification unit specifies the index value, based on the quantity relating to the quality.

### Claim 16 (depends on 10)

The plant evaluation device according to claim 10,
wherein the acquisition unit further acquires a quantity relating to performance of the facility and a quantity relating to quality of the facility, and
wherein the index value specification unit specifies the index value, based on the quantity relating to the performance of the facility and the quantity relating to quality.

### Claim 17 (depends on 10)

The plant evaluation device according to claim 10,
wherein the index value output unit outputs an alarm, based on a comparison between the index value and a predetermined threshold.

### Claim 18 (depends on 10)

The plant evaluation device according to claim 10, further comprising:
a prediction unit that is configured to predict a future quantity of the plant, based on a past quantity of the plant and the quantity acquired by the acquisition unit,
wherein the index value specification unit specifies the index value for each of the acquired quantity and the predicted future quantity.

### Claim 19 (depends on 10)

The plant evaluation device according to claim 10,
wherein the acquisition unit acquires the quantity at one timing, and
wherein the index value specification unit specifies the index value, based on the quantity acquired by the acquisition unit at the timing.

### Claim 20 (depends on 10)

The plant evaluation device according to claim 10,
wherein the index value output unit outputs a time series of the index value.

### Claim 21

A plant evaluation method comprising the steps of:
acquiring a quantity relating to an operating rate of a facility of a plant and a quantity relating to energy consumption of the facility;
specifying an index value that is higher as the energy consumption is lower and that is higher as the operating rate is higher, or an index value that is lower as the energy consumption is lower and that is lower as the operating rate is higher, based on the acquired quantity; and
outputting information relating to the index value.

### Claim 22

A program that causes a computer to execute a process, the process comprising the steps of:
acquiring a quantity relating to an operating rate of a facility of a plant and a quantity relating to energy consumption of the facility;
specifying an index value that is higher as the energy consumption is lower and that is higher as the operating rate is higher, or an index value that is lower as the energy consumption is lower and that is lower as the operating rate is higher, based on the acquired quantity; and
outputting information relating to the index value.
