Process Control HMI Navigation Pane Status Propagation
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Solution Overview
Problem
In process control systems, vast quantities of information make it difficult for users to access and understand system management information effectively, diminishing its value due to reduced accessibility.
Innovation Solution
A system management HMI application with a multi-paned interface, including a navigation pane with a hierarchical tree and a component-specific information pane, providing detailed diagnostic information and propagating status from lower nodes to logical monitor nodes, along with search functionality and enhanced diagnostics features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If vast quantities of system management information are provided to users, then the information completeness is improved, but the accessibility and understandability of the information deteriorates
Solution Approach 1:
The system divides the vast quantity of system management information into organized hierarchical groups and categories (e.g., by equipment type, location, or functional group). The navigation pane presents segmented information structures that allow users to access specific information categories without being overwhelmed by the total volume of data, thus maintaining information completeness while improving accessibility.
Solution Approach 2:
The system adds a hierarchical navigation dimension to the information presentation. Instead of presenting all information in a single flat view, the patent introduces multiple levels of organization (parent groups, child groups, individual items) that enable users to navigate through information systematically, transforming the information access experience from overwhelming to manageable.
2Measurement precision
If detailed status information is displayed for all equipment, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The system applies local quality by providing detailed status information selectively - when and where it is needed. The navigation pane allows users to drill down into specific equipment or groups to view detailed status information, while higher-level views present summarized information. This ensures measurement precision for status monitoring while avoiding the complexity of displaying all detailed information simultaneously across the entire interface.
3Ease of operation
If hierarchical navigation structure is implemented, then the ease of operation is improved, but the time to access specific information may increase
Solution Approach 1:
The system implements feedback mechanisms that provide users with orientation information during navigation (e.g., showing current location in the hierarchy, breadcrumbs, or status indicators). This feedback helps users understand their position in the hierarchical structure and makes informed decisions about navigation paths, reducing the time required to locate specific information while maintaining the organizational benefits of the hierarchical structure.
Data Source
AI summary
A system management human-machine interface application for use in a process control system is described herein that enables users to view/monitor information regarding system status and performance and to initiate changes to the operation of system equipment, checkpoint control stations and execute diagnostics. A system management graphical user interface includes a number of features that address the accessibility of system status information to users. Such features include rendering selectable diagnostic information (e.g., online/offline status) on a system component navigation view. The GUI also provides access to a variety of system information including: alarms, messages, watched system management parameters, and a legend for symbols displayed in a system management navigation tree. Other features include: a search function for locating a device in the system to render detailed information, a navigation tree that displays equipment status via icons, and propagating fault statuses up to a highest level of the navigation tree.