Location-Aware Mobile Interfaces for Process Plant Data Access
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Solution Overview
Problem
Current process control systems in plants face limitations such as data archiving issues due to memory constraints, inefficient data communication, and structuring data into separate silos, leading to cumbersome workflows and inaccurate data for troubleshooting and predictive modeling.
Innovation Solution
The implementation of mobile user interface devices that can detect proximity to external devices and transmit data requests, allowing seamless data access and synchronization across devices, facilitating improved data management and workflow management through big data concepts, expert systems, and context-aware interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If data is archived in centralized databases with limited memory, then data storage is achieved, but data access efficiency deteriorates and memory constraints cause data loss
Solution Approach 1:
The patent segments the centralized database architecture into distributed data storage across multiple field devices. Each field device maintains its own data locally, eliminating the single point of memory constraint. This segmentation allows unlimited data retention at the source while enabling efficient local access without centralized bottlenecks.
Solution Approach 2:
The patent introduces a new dimension of data access by enabling mobile devices to connect directly to field devices via wireless communication. This creates a parallel data access pathway that bypasses the traditional centralized database route, allowing operators to retrieve data directly from the source in real-time without being constrained by centralized memory limitations.
2Stability of the object's composition
If data is structured into separate silos in centralized databases, then data organization is achieved, but workflow efficiency deteriorates due to cumbersome access procedures
Solution Approach 1:
The patent implements preliminary action by pre-configuring field devices with embedded web servers and data storage capabilities. This allows data to be organized and made accessible at the source before any access request occurs, eliminating the need for complex centralized data retrieval procedures. Operators can directly access pre-organized data from field devices without navigating through centralized database silos.
3Reliability
If centralized hardware devices are placed in control rooms away from the plant environment, then device protection from harsh conditions is achieved, but real-time data access at field locations deteriorates
Solution Approach 1:
The patent applies universality by making field devices multi-functional. Field devices not only perform their primary control and measurement functions but also serve as data storage units, web servers, and communication nodes. This eliminates the need for separate centralized hardware in control rooms, as field devices themselves provide all necessary data access functions directly at field locations.
Solution Approach 2:
The patent introduces mobile devices as intermediaries between operators and field devices. These mobile devices enable operators to access field device data wirelessly from any location in the plant, bridging the gap between protected field devices and operators without requiring physical proximity or centralized control room hardware.
4Reliability
If wired communication paths are used for data highways, then communication reliability is improved, but installation complexity and adaptability to mobile access deteriorates
Solution Approach 1:
The patent merges wired and wireless communication systems into a unified architecture. Field devices maintain reliable wired connections to the control network while simultaneously providing wireless access points for mobile devices. This combination preserves the reliability of wired communication for critical data transmission while adding the versatility of wireless access for mobile operators throughout the plant.
Data Source
AI summary
Methods and apparatus for operating a process plant include multiple user interface devices operable to determine the location of the device in the process plant and to display data related to proximate devices. A processor in a mobile user interface device transmits a first request for data and receives the requested data in response to the request. The processor causes a display to display the received data. The processor receives an indication that the mobile user interface device is in proximity to an external device the processors transmits a second request for data according to the received indication. The processor then receives data in response to the second request.