Risk evaluation system for process system, risk evaluation program and risk evaluation method

• US 10,025,658 B2
• Filed: 03/31/2015
• Issued: 07/17/2018
• Est. Priority Date: 04/01/2014
• Status: Active Grant

• Current Assignee: TLV Co., Ltd.
• Original Assignee: TLV Co., Ltd.
• Inventors: Ihara, Kenta, Miyamae, Yoshio
• Primary Examiner(s): Patel, Kamini B
• Application Number:
  US15/300,909
• Publication Number:
  US 20170024267A1
• Time in Patent Office: 1,204 Days
• Field of Search: 714 473
• CPC Class Codes: G05B 23/0251 Abstraction hierarchy, e.g. "complex systems", i.e. system is divided in subsystems, subsystems are monitored and results are combined to decide on status of whole system
• CPC Class Codes: 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
• CPC Class Codes: G06F 11/0721 within a central processing unit [CPU]
• CPC Class Codes: G06F 11/079 Root cause analysis, i.e. error or fault diagnosis in a hardware test environment G06F11/22; in a software test environment G06F11/36

Abstract

A risk evaluation system includes a storage unit, an operation unit, a calculation unit, a risk evaluation unit and a display unit. The calculation unit calculates first and second factors for use in risk evaluation relating to specific constituent devices on the basis of predetermined information about the specific constituent devices. The risk evaluation unit generates risk evaluation information to be used for displaying a device risk evaluation matrix defined by two axes of the first factor and the second factor and including plot images plotted based on the first and second factors of the specific constituent devices. Further, the risk evaluation unit generates the device risk evaluation information in identifiable displaying mode to allow identification of plot images of specific constituent devices constituting a same process.

Claims

1. A risk evaluation system for a process system constituted of a plurality of processes, the system comprising:

a storage unit that stores relevance information that correlates identification information for identifying the respective process with identification information for identifying at least a specific constituent device among constituent devices constituting the process;

an operation unit that receives an operational input of predetermined information for risk evaluation relating to the specific constituent device;

a calculation unit that calculates first and second factors for use in risk evaluation relating to the specific constituent device on the basis of the predetermined information about the specific constituent device;

a risk evaluation unit that generates device risk evaluation information to be used for displaying a device risk evaluation matrix defined by two axes of the first factor and the second factor and including a plot image plotted based on the first and second factors of the specific constituent device;

a display unit that displays the device risk evaluation matrix with using the risk evaluation information; and

the risk evaluation unit generating the device risk evaluation information in identifiable displaying mode to allow identification of the plot image of the specific constituent device constituting a same process based on the relevance information stored in the storage unit.

2. The risk evaluation system according to claim 1, wherein:

the first factor comprises importance of the specific constituent device in the process; and

the second factor comprises frequency of occurrence of a trouble in the specific constituent device.

3. The risk evaluation system according to claim 1, wherein the risk evaluation unit generates the risk evaluation information in a displaying mode that surrounds the plot images of the specific constituent devices constituting the same process with a line as the identifiable displaying mode.

4. The risk evaluation system according to claim 1, wherein:

the operation unit receives an operational input of predetermined information for risk evaluation relating to the process;

the calculation unit calculates the first and second factors of the process, based on the predetermined information relating to the process;

the risk evaluation unit generates process risk evaluation information for displaying a process risk evaluation matrix defined by two axes of the first factor and the second factor and including plot images plotted based on the calculated first and second factors of the process; and

the display unit displays the device risk evaluation matrix and the process risk evaluation matrix either selectively or together in juxtaposition with each other.

5. The risk evaluation system according to claim 1, wherein:

the storage unit further stores information of an operating state of the specific constituent device in correlation to the identification information of the specific constituent device;

the risk evaluation unit generates device risk evaluation information for displaying a device risk evaluation matrix including plot images in a displaying mode allowing identification of an operating state of each of the specific constituent devices, based on the information of the operating state of the specific constituent devices.

6. The risk evaluation system according to claim 5, wherein the displaying mode of the plot image is such that one of shape, color, blinking interval is made different according to the operating state.

7. The risk evaluation system according to claim 5, wherein:

the specific constituent device comprises a steam trap for discharging drain generated in the process system; and

the operating state comprises a state determined based on information regarding temperature and vibration of the steam trap.

8. The risk evaluation system according to claim 7, wherein the operating state of the specific constituent device includes a normal state indicating an appropriate operating state, an abnormal state indicating an abnormal operating state and a paused state indicating pausing of operation.

9. A computer program product for risk evaluation to be applied to a process system constituting of a plurality of processes, the computer program product comprising at least one non-transitory computer-readable medium including program instructions that, when executed by at least one processor, cause the at least one processor to:

calculate first and second factors for use in risk evaluation relating to at least a specific constituent device among constituent devices constituting—

the process on the basis of predetermined information for risk evaluation about the specific constituent device, the predetermined information being inputted by a user via an operation unit; and

generate device risk evaluation information to be used for causing a display unit to display a device risk evaluation matrix defined by two axes of the first factor and the second factor and including a plot image plotted based on the first and second factors of the specific constituent device,

wherein, the device risk evaluation information is in identifiable displaying mode to allow identification of plot image of the specific constituent device constituting a same process, based on relevance information correlating identification information for identifying the process and identification information for identifying the specific constituent device.

10. A risk evaluation method for a process system constituting of a plurality of processes executed by a computer, the method comprising:

an accessing step for accessing a storage unit that stores relevance information that correlates identification information for identifying the respective process with identification information for identifying at least specific constituent device among constituent devices constituting the process;

an operating step for receiving an operational input of predetermined information for risk evaluation relating to the specific constituent device;

a calculating step for calculating first and second factors for use in risk evaluation relating to the specific constituent device on the basis of predetermined information about the specific constituent device;

a risk evaluating step for generating risk evaluation information to be used for displaying a device risk evaluation matrix defined by two axes of the first factor and the second factor and including plot images plotted based on calculated importance and trouble occurrence frequency of the specific constituent device; and

a displaying step for displaying the device risk evaluation matrix with using the risk evaluation information;

wherein the risk evaluating step generates the device risk evaluation information in identifiable displaying mode to allow identification of the plot image of the specific constituent device constituting a same process based on the relevance information stored in the storage unit.