EP0965897A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Field device management system
Assignee: Valmet Automation Oy
•
Filing: 1999-06-11
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Granted: —
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Expires: 2019-06-11
Abstract
Abstract The invention relates to field management in industrial process systems and similar systems. In the invention, maintenance management systems of industrial processes of separate plants located geographically apart from each other are networked in such a way that they may communicate with each other and exchange information on maintenance parameters of field devices of different types. As a result, experience obtained in one industrial process can be transferred to other respective industrial processes and applications. By utilizing this globally collected cumulative information, it is possible to improve and specify the diagnostics of the separate local maintenance systems (6) essentially faster than in case if the local maintenance management system were independent and the diagnostics were changed on the basis of local experience only.
Inventors
- 👤 Jouni Pyötsiä
- 👤 Harri Cederlöf
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 13:32
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/418; G05B19/4185; G05B2219/00; G05B2219/30; G05B2219/31; G05B2219/31121; G05B2219/31211; G05B2219/31324; G05B2219/32; G05B2219/32226; Y; Y02; Y02P; Y02P90/00; Y02P90/02; Y02P90/80
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
91 words
A system for the maintenance management of field devices in industrial
processes, each of said industrial processes comprising a local maintenance
management system, characterized in that the local maintenance management systems of said industrial processes
being networked in order to exchange information relating to the maintenance
of field devices for a network level learning and utilization of the information, at least one of the local maintenance management systems is arranged
to modify maintenance management parameters independently based
on both data collected locally and data received from other local maintenance
management systems.
Claim 2
Dependent Claim
103 words
A system according to claim 1, characterized in that the local
maintenance management system comprises a knowledge database storing application-specific and/or device-specific
and/or device-type-specific knowledge, analyzing means for analyzing the condition of the field devices
based on a measurement data from the respective industrial process and a
knowledge data from the knowledge database and, when necessary according
to the analysis results, for changing the maintenance parameters in the local
maintenance management system, and means for modifying the contents of the knowledge data base according
to both a maintenance history data collected locally and maintenance
history data received from other local maintenance management systems.
Claim 3
Dependent Claim
33 words
A system according to claim 1 or 2, characterized in that said
maintenance parameters include data representing a control performance of
the field devices and/or the need of maintenance of the field devices.
Claim 4
Dependent Claim
29 words
A system according to claim 1, 2 or 3, characterized in that said
maintenance parameters include a maintenance alarm limit and/or a performance
alarm limit for the field device.
Claim 5
Dependent Claim
25 words
A system according to claim 1, 2, 3 or 4, characterized in that
said maintenance parameters include a maintenance priority level for the field
device.
Claim 6
Dependent Claim
38 words
A system according to claim 1, 2, 3, 4 or 5, characterized in that
said knowledge data include data representing a control performance history
data of a field device and/or a field device-type and/or a process control application.
Claim 7
Dependent Claim
38 words
A system according to claim 1, 2, 3, 4 or 5, characterized in that
said knowledge data include data representing a maintenance need history
data of a field device and/or a field device-type and/or a process control application.
Claim 8
Independent Claim
60 words
A system according to any one of claims 1-7, characterized in
that the field device is a valve and the parameter representing the performance
comprises or is affected by one or more of the following factors: static error,
rate of change in static error, dynamic error, rate of change in dynamic error,
opening accumulation, load, rate of change in load.
Claim 9
Independent Claim
70 words
A system according to any one of claims 1-8, characterized in
that the field device is a valve and the parameter representing the need of
maintenance comprises or is affected by one or more of the following factors:
control performance, odometer of valve, odometer of actuator, number of
valve reversals, number of actuator reversals, valve seal leakage, valve emission,
valve wall thickness, cavitation level, load, rate of change in load.
Claim 10
Independent Claim
38 words
A system according to any preceding claim, characterized in
that the local maintenance management system is arranged to independently
adapt the maintenance management to the changes the management system
has detected in the properties of the field devices.
Claim 11
Independent Claim
34 words
A system according to any preceding claim, wherein the communication
is based on one or more of the following communication methods:
electronic mail, Dynamic Data Exchange, Hyper Text Markup Language, short
message, Internet, OLE.
Claim 12
Dependent Claim
81 words
A maintenance management system for managing field devices
in an industrial process, characterized in that said maintenance management
system is arranged to communicate with maintenance management systems of industrial
processes of other plants located geographically apart from each other, in order
to transmit and receive information relating to the maintenance management
of the field devices, adjust maintenance parameters of the field devices independently
in a self-learning manner based on both data collected locally and data received
from other maintenance management systems.
Claim 13
Dependent Claim
100 words
A system according to claim 12, characterized in that the maintenance
management system comprises a knowledge database storing application-specific and/or device-specific
and/or device-type-specific knowledge, analyzing means for analyzing the condition of the field devices
based on a measurement data from the respective industrial process and a
knowledge data from the knowledge database and, when necessary according
to the analysis results, for changing the maintenance parameters in the maintenance
management system, and means for modifying the contents of the knowledge data base according
to both a maintenance history data collected locally and maintenance
history data received from other maintenance management systems.
Claim 14
Dependent Claim
33 words
A system according to claim 12 or 13, characterized in that said
maintenance parameters include data representing a control performance of
the field devices and/or the need of maintenance of the field devices.
Claim 15
Dependent Claim
29 words
A system according to claim 12, 13 or 14, characterized in that
said maintenance parameters include a maintenance alarm limit and/or a performance
alarm limit for the field device.
Claim 16
Dependent Claim
25 words
A system according to claim 12, 13, 14 or 15, characterized in
that said maintenance parameters include a maintenance priority level for the
field device.
Claim 17
Dependent Claim
38 words
A system according to claim 12, 13, 14, 15 or 16, characterized
in that said knowledge data include data representing a control performance
history data of a field device and/or a field device-type and/or a process control
application.
Claim 18
Dependent Claim
38 words
A system according to claim 12, 13, 14, 15 or 16, characterized
in that said knowledge data include data representing a maintenance need
history data of a field device and/or a field device-type and/or a process control
application.
Claim 19
Independent Claim
38 words
A system according to one of claims 12-18, characterized in that
the maintenance management system is arranged to independently adapt the
maintenance management to the changes the management system has detected
in the properties of the field devices.
Claim 20
Independent Claim
37 words
A system according to any one of claims 12-19, characterized in
that the communication is based on one or more of the following communication
methods: electronic mail, Dynamic Data Exchange, Hyper Text Markup
Language, short message, Internet.
References Cited (Backward Citations)
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