Pre-Grant Publication Number: 20110026407
Please help the USPTO examine the application by evaluating the relevance of the publicly submitted prior art to the patent application.
Peer To Patent forwards the Top 10 most relevant prior art submissions and their annotations to the USPTO.
Review this prior art and click on the thumbs up (or down) to indicate whether this submission should be forwarded to the USPTO.
If you login then you can add an annotation by typing in the box at the bottom of the screen to comment on the relevance of the prior art to the claims of the patent application.
Review this prior art and click on the thumbs up (or down) to indicate whether this submission should be forwarded to the USPTO.
If you login then you can add an annotation by typing in the box at the bottom of the screen to comment on the relevance of the prior art to the claims of the patent application.
Prior Art Detail
Summary / Description
| Summary / Description | Abstract: A system for preserving process variable data relating to the operation of a process is provided. The system is adapted to preserve process variable data obtained before, during, and after the occurrence of an abnormal situation or event. The preserved process variable data maybe communicated from smart field devices or other intelligent equipment relating to the control of the process to a process controller or other higher level control device. ... |
Basic Information
| Type of Prior Art | Issued Patents - US |
| Country | United States of America |
| Patent/Application # | 7702401 |
| Kind Code | United States (US) - United STATES Patent - A |
| Patentee Name | Fisher-Rosemount Systems, Inc. |
| Relevant Pages, Columns, or Lines | |
| URL | http://patft.uspto.gov/netacgi/... |
| Filing Date | September 5, 2007 |
| Additional Information | |
Notes / To Do
| Notes | |
Excerpt
Excerpt SUMMARY OF THE DISCLOSURE
The present invention relates to a system and method for preserving process variable data relating to the operation of a process in a process plant. The systems and methods of the present invention are adapted to preserve process variable data obtained before, during and after the occurrence of an abnormal situation or event. The preserved process variable data may be communicated from a smart field device or other intelligent field equipment to a process controller or other higher level control device. The process controller or other higher level control device may then cause the preserved data to be displayed for an operator or other maintenance personnel. The preserved data may also be provided to other process control modules or abnormal situation prevention systems for further analysis to develop methods for preventing the abnormal situation from recurring in the future, or for taking additional steps based on the abnormal situation data to minimize or prevent a further deterioration of the process operation.
Accordingly, an embodiment of the invention provides a system for processing data related to an abnormal process event in a controlled process. The system includes a controller, a communication channel, and an intelligent device. The intelligent device may be a field device for controlling the process, or any other equipment related to carrying out the process. The intelligent device includes a processor, a memory, and an input device. The input device is adapted to receive process variable data. The processor is configured to temporarily store statistical data related to the received process variable data in the memory. The statistical data related to the received process variable data are stored in the memory at a first sample rate. The processor is further configured to communicate the statistical data stored in the memory to the controller over the communication channel. The statistical data are communicated at a second sample rate. According to an embodiment, the first sample rate is greater than the second sample rate. The processor may also be configured to execute an abnormal situation prevention routine to detect the occurrence of an abnormal process event based on the received process variable data. When an abnormal process event is detected, the processor may take steps to preserve a portion of the statistical data related to the received process variable data covering a time period beginning before the abnormal process event is detected and ending after the abnormal process event has been detected. The processor may transmit the preserved portion of the statistical data to a process controller in multiple data packets to overcome any limitations of the communication channel. |
Relevance
Claims
1
Relevance
See the Excerpt, information on an abnormal event is tracked.
See the Excerpt, information on an abnormal event is tracked.
Claim Chart
Some
0 days left
