# US 2018/0024544 A1 · Damage Estimation Device

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- Number: US 2018/0024544 A1
- Document ID: US20180024544A1
- Status: Published application
- Kind: A1
- Application number: 15/540,275
- Filed: 2015-01-21
- Published: 2018-01-25
- Earliest claimed: 2015-01-21
- Assignees: Hitachi, Ltd.
- Applicants: Hitachi, Ltd.
- Inventors: Munetoshi UNUMA; Yasuki KITA; Takashi SAEKI
- Web page: https://patentgrep.com/patent/US20180024544A1

## CPC

- G05B 23/0283: {Predictive maintenance, e.g. involving the monitoring of a system and, based on the monitoring results, taking decisions on the maintenance schedule of the monitored system; Estimating remaining useful life [RUL] (preventive maintenance, i.e. planning maintenance according to the available resources without monitoring the system G06Q10/06)}
- B60R 16/0234: {related to maintenance or repairing of vehicles}
- G06Q 10/20: Administration of product repair or maintenance
- G07C 3/00: Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
- G07C 5/006: {Indicating maintenance}
- H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- 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)
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- 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
- G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

According to the present invention, the work status at an actual site is represented using a combination of component statuses. A degree of damage that takes into account the manner of use at the actual site is predicted by associating test data collected in a component status test. The objective of the present invention is to estimate, with high accuracy, the degree of damage to a device operating in an actual environment. In order to achieve this objective, this damage estimation device is provided with: a component status classification processing unit that classifies the operating status of a device; a component status characteristic amount storage unit that stores a characteristic amount for classification processing by the component status classification processing unit; and a damage degree storage unit for each component status, said damage degree storage unit storing the degree of damage to various regions of a device for each component status, wherein the degree of damage is measured in advance for each component status or is calculated using a simulation. The damage estimation device is characterized by collecting sensor/control data required for device status classification, classifying component status using the component status classification processing unit, calculating the classified result and the degree of damage corresponding to said result using the damage degree storage unit for each component status, and outputting the degree of damage.

## Claims

### Claim 1

A damage estimation device comprising:
a component status classification processing unit that classifies an operating status of a device;
a component status characteristic amount storage unit that stores a characteristic amount for classification processing by the component status classification processing unit; and a damage degree storage unit for each component status that stores a degree of damage of various regions of the device for each component status, the degree of damage being measured or calculated using a simulation in advance for each component status, wherein
the damage estimation device collects sensor/control data required for device status classification,
classifies the component status using the component status classification processing unit,
calculates a classified result and the degree of damage corresponding thereto using the damage degree storage unit for each component status, and
outputs the degree of damage.

### Claim 2 (depends on 1)

The damage estimation device according to claim 1, wherein
the degree of damage output and an item of the component status classified are stored in a component status/damage history accumulation unit and
based on an accumulation result, a frequency distribution of the component status is created.

### Claim 3 (depends on 2)

The damage estimation device according to claim 2, wherein
from the frequency distribution of the component status created,
integrated damage of each region is output for each component status.

### Claim 4 (depends on 3)

The damage estimation device according to claim 3, wherein
an effective component status to reduce a degree of integrated damage is output
based on the degree of the integrated damage of each region for each of the component status.

### Claim 5

A damage estimation device comprising:
a component status classification processing unit that classifies an operating status of a device;
a component status characteristic amount storage unit that stores a characteristic amount for classification processing by the component status classification processing unit; and a damage degree storage unit for each component status that stores a degree of damage of various regions of the device for each component status, wherein the degree of damage is measured or calculated using a simulation in advance for each component status, wherein
the damage estimation device collects sensor/control data required for device status classification,
classifies the component status using the component status classification processing unit,
accumulates a classified result in a component status accumulation unit,
calculates an accumulated component status and the degree of damage corresponding thereto using the damage degree storage unit for each component status, and
creates a frequency distribution of the component status based on an accumulation result.

### Claim 6

The damage estimation device according to claim. 5, wherein
from the frequency distribution of the component status created,
a degree of integrated damage of each region is output for each component status.

### Claim 7 (depends on 6)

The damage estimation device according to claim 6, wherein
an effective component status to reduce the degree of integrated damage is extracted and
a notification that the component status will be improved is sent
based on the degree of the integrated damage of each region for the each component status created.

### Claim 8

A damage estimation device comprising:
a component status classification processing unit that classifies an operating status of a device;
a component status characteristic amount storage unit that stores a characteristic amount for classification processing by the component status classification processing unit; and a damage degree storage unit for each component status that stores a degree of damage of various regions of the device for each component status, the degree of damage being measured or calculated using a simulation in advance for each component status, wherein
the damage estimation device collects sensor/control data required for device status classification,
classifies the component status using the component status classification processing unit,
accumulates a classified result in a component status accumulation unit,
calculates an accumulated component status and the degree of damage corresponding thereto using the damage degree storage unit for each component status, and
calculates, based on a result of calculation, cumulative damage for each region.

### Claim 9 (depends on 8)

The damage estimation device according to claim 8, wherein
an optimum maintenance cycle or design guidelines are calculated
based on a region for which the cumulative damage calculated is accumulated and
a remaining life calculated from, the cumulative damage.

### Claim 10

A damage estimation device comprising:
a component status classification processing unit that classifies an operating status of a device;
a component status characteristic amount storage unit that stores a characteristic amount for classification processing by the component status classification processing unit; a component status accumulation unit that accumulates a result classified by the component status classification processing unit; and a component status accumulation unit that accumulates the component status that changes chronologically of various regions of the device for each component status, the component status being measured or calculated using a simulation in advance for each component status, wherein
the damage estimation device collects sensor/control data required for device status classification,
classifies the component status using the component status classification processing unit,
accumulates a classified result in a component status accumulation unit,
refers to the component status accumulated in the component status accumulation unit and a measured data storage unit during a component status test corresponding thereto, and
grasps a damage status from, physical change information.

### Claim 11

A damage estimation method comprising:
performing component status classification processing of classifies an operating status of a device;
storing a characteristic amount of a component status in which a characteristic amount of the component status classification processing is stored; and storing a degree of damage of various regions of the device for each component status, the degree of damage being measured or calculated using a simulation in advance for each component status;
collecting sensor/control data required for device status classification;
classifying the component status by the component status classification processing;
calculating a classified result and the degree of damage corresponding thereto using the degree of damage stored for each component status; and
outputting the degree of damage.

### Claim 12 (depends on 11)

The damage estimation method according to claim 11, wherein
the degree of damage output and items of the component status classified
are accumulated as a component status/damage history and
based on an accumulation result, a frequency distribution of the component status is created.

### Claim 13 (depends on 12)

The damage estimation method according to claim 12, wherein
from the frequency distribution of the component status created,
integrated damage of each region is output for each component status.

### Claim 14 (depends on 13)

The damage estimation method according to claim 13, wherein
an effective component status to reduce a degree of integrated damage is output
based on the degree of the integrated damage of each region for the each component status.

### Claim 15

A damage estimation method comprising:
performing component status classification processing of an operating status of a device;
storing a characteristic amount of a component status in which a characteristic amount of the component status classification processing is stored;
storing a degree of damage of various regions of the device for each component status, the degree of damage being measured or calculated using a simulation in advance for each component status;
collecting sensor/control data required for device status classification;
classifying the component status by the component status classification processing;
accumulating a classified result;
calculating an accumulated component status and the degree of damage corresponding thereto using the degree of damage stored for each component status; and
creating a frequency distribution of the component status.

### Claim 16 (depends on 15)

The damage estimation method according to claim 15, wherein
from the frequency distribution of the component status created,
a degree of integrated damage of each region is output for each component status.

### Claim 17 (depends on 16)

The damage estimation method according to claim 16, wherein
an effective component status to reduce the degree of integrated damage is extracted and
a notification that the component status will be improved is sent
based on the degree of the integrated damage of each region for the each component status created.

### Claim 18

A damage estimation method comprising:
performing component status classification processing of an operating status of a device;
storing a characteristic amount of a component status in which a characteristic amount of the component status classification processing is stored;
storing a degree of damage of various regions of the device for each component status, the degree of damage being measured or calculated using a simulation in advance for each component status;
collecting sensor/control data required for device status classification;
classifying the component status by the component status classification processing;
accumulating a classified result;
calculating an accumulated component status and the degree of damage corresponding thereto using the degree of damage for each component status; and
calculating, based on the degree of damage for each component status, cumulative damage for each region.

### Claim 19 (depends on 18)

The damage estimation method according to claim 18, wherein
an optimum, maintenance cycle or design guidelines are calculated
based on a region for which the cumulative damage calculated, is accumulated and
a remaining life calculated from the cumulative damage.

### Claim 20

A damage estimation method comprising:
performing component status classification processing of an operating status of a device;
storing a characteristic amount of a component status in which a characteristic amount of the component status classification processing is stored;
accumulating a result classified by the component status classification processing;
accumulating the component status that changes chronologically of various regions of the device for each component status, the component status being measured or calculated using a simulation in advance for each component status;
collecting sensor/control data required for device status classification;
classifying the component status by the component status classification processing;
accumulating a classified result;
referring to the component status accumulated and measured data during a component status test corresponding thereto, and
grasping a damage status from physical change information.