Presenting field users on process graphics
First Claim
1. A method of enabling an operator of a process control system to determine the location of field users in the process control system, the method being performed by a field user presenting arrangement and comprising the steps of:
- obtaining position data of the position of a field user in the form of a maintenance engineer;
obtaining the positions of objects in the process control system;
comparing the position of the maintenance engineer with the positions of the objects;
determining that the maintenance engineer is in the vicinity of an object if the distance between the position of the maintenance engineer and the position of the object is below a proximity threshold;
presenting the maintenance engineer on graphics depicting the process, where a maintenance engineer deemed to be in the vicinity of an object is presented at this object in the graphics;
receiving an indication that the maintenance engineer is in control of the object, wherein the process control system is in a first state at least in a section of the system in which said object being controlled by the maintenance engineer is provided, said first state being a safety state where the process is shut down completely or partly or running in a safety mode;
indicating this control in the presenting of the maintenance engineer on the graphics;
comparing, after the indication of control has been received, the distance between the controlled object and the maintenance engineer with a release threshold;
determining that the maintenance engineer has released the object based on the threshold being exceeded;
presenting the changed status of the object; and
instructing the process control system to change system state based on the determination of the release of the object.
2 Assignments
0 Petitions
Accused Products
Abstract
A method, field user presenting arrangement and a computer program product for enabling an operator of a process control system to determine the location of field users in the process control system are provided. The arrangement includes a presentation control unit that obtains position data of the position of a field user, obtain the positions of objects in the process control system, compares the position of the field user with the positions of the objects, determines that the field user is in the vicinity of an object if the distance between the position of the field user and the position of the object is below a proximity threshold, and presents the field user on graphics depicting the process, where a field user deemed to be in the vicinity of an object is presented at this object in the graphics.
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Citations
20 Claims
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1. A method of enabling an operator of a process control system to determine the location of field users in the process control system, the method being performed by a field user presenting arrangement and comprising the steps of:
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obtaining position data of the position of a field user in the form of a maintenance engineer; obtaining the positions of objects in the process control system; comparing the position of the maintenance engineer with the positions of the objects; determining that the maintenance engineer is in the vicinity of an object if the distance between the position of the maintenance engineer and the position of the object is below a proximity threshold; presenting the maintenance engineer on graphics depicting the process, where a maintenance engineer deemed to be in the vicinity of an object is presented at this object in the graphics; receiving an indication that the maintenance engineer is in control of the object, wherein the process control system is in a first state at least in a section of the system in which said object being controlled by the maintenance engineer is provided, said first state being a safety state where the process is shut down completely or partly or running in a safety mode; indicating this control in the presenting of the maintenance engineer on the graphics; comparing, after the indication of control has been received, the distance between the controlled object and the maintenance engineer with a release threshold; determining that the maintenance engineer has released the object based on the threshold being exceeded; presenting the changed status of the object; and instructing the process control system to change system state based on the determination of the release of the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A field user presenting arrangement for enabling an operator of a process control system to determine the location of field users in the process control system, the field user presenting arrangement comprising:
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a presentation control unit configured to; obtain position data of the position of a field user in the form of a maintenance engineer; obtain the positions of objects in the process control system; compare the position of the maintenance engineer with the positions of the objects; determine that the maintenance engineer is in the vicinity of an object if the distance between the position of the maintenance engineer and the position of the object is below a proximity threshold; and present the maintenance engineer on graphics depicting the process, where a maintenance engineer deemed to be in the vicinity of an object is presented at this object in the graphics; and an object release determining unit configured to; receive an indication that the maintenance engineer is in control of the object, wherein the process control system is in a first state at least in a section of the system in which said object being controlled by the maintenance engineer is provided, said first state being a safety state where the process is shut down completely or partly or running in a safety mode; instruct the presentation control unit to indicate this control in the presenting of the maintenance engineer on the graphics; compare, after the indication of control has been received, the distance between the controlled object and the maintenance engineer with a release threshold; determine that the maintenance engineer has released the object based on the threshold being exceeded; instruct the presentation control unit to present the changed status of the object; and instruct the process control system to change system state based on the determination of the release of the object. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A computer program product for enabling an operator of a process control system to determine the location of field users in the process control system, said computer program product being provided on a non-transitory data carrier comprising computer program code configured to cause a field user presenting arrangement to, when said computer program code is loaded into the field user presenting arrangement:
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obtain position data of the position of a field user in the form of a maintenance engineer; obtain the positions of objects in the process control system; compare the position of the maintenance engineer with the positions of the objects; determine that the maintenance engineer is in the vicinity of an object if the distance between the position of the maintenance engineer and the position of the object is below a proximity threshold; present the maintenance engineer on graphics depicting the process, where a maintenance engineer deemed to be in the vicinity of an object is presented at this object in the graphics; receive an indication that the maintenance engineer is in control of the object, wherein the process control system is in a first state at least in a section of the system in which said object being controlled by the maintenance engineer is provided, said first state being a safety state where the process is shut down completely or partly or running in a safety mode; indicate this control in the presenting of the maintenance engineer on the graphics; compare, after the indication of control has been received, the distance between the controlled object and the maintenance engineer with a release threshold; determine that the maintenance engineer has released the object based on the threshold being exceeded; present the changed status of the object; and instruct the process control system to change system state based on the determination of the release of the object.
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Specification