Process Data Correlation With Facility-Specific Time Lag Compensation
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Solution Overview
Problem
Existing methods for analyzing process data in steel sintering processes fail to adequately compensate for time lags and correlate data across multiple facilities, limiting the analysis of raw material quality and operational characteristics.
Innovation Solution
A method and device for compensating time lags and correlating process data across a production line by collecting and editing data using a computer system that accounts for the type of facility through which the raw material passes, considering transport speed, equipment length, weight, and rotation speed to synchronize data across facilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If time lag compensation is performed by creating a data set with time compensation for a certain period, then data analysis can be performed, but it is still necessary to consider time lag compensation for process data across multiple facilities and steps
Solution Approach 1:
The patent segments the time lag compensation process by facility type, creating specific compensation methods for conveyors, granulators, sintering machines, and coolers. This segmentation allows each facility's unique characteristics to be addressed individually, improving accuracy while managing complexity through structured categorization.
Solution Approach 2:
The patent performs preliminary time lag compensation for each facility before correlating the data. By pre-calculating and storing compensated data for each facility type, the system eliminates the need for complex real-time multi-facility compensation calculations, thus improving measurement precision while reducing overall system complexity.
2Measurement precision
If RFID tags are used to identify pallets and acquire temperature distribution data, then position-specific data can be obtained, but the method is limited to sintering machines only
Solution Approach 1:
The patent extends the RFID-based identification and tracking system to work across multiple facility types including conveyors, granulators, sintering machines, and coolers. By making the system universal, it maintains position-specific data accuracy while enabling application across the entire production line, thus resolving the limitation to sintering machines only.
Solution Approach 2:
The patent implements dynamic tracking of raw material position and identity as it moves through different facility types. The system adapts the identification method to each facility's characteristics while maintaining continuous tracking, enabling versatility across facilities while preserving measurement precision through facility-specific data collection methods.
3Productivity
If process data from multiple facilities is collected for analysis, then comprehensive production analysis can be performed, but time lag between data from different facilities prevents accurate correlation
Solution Approach 1:
The patent performs preliminary time lag compensation for each facility's data before correlation. By pre-adjusting each facility's data timeline based on its specific processing time and characteristics, the system enables accurate comprehensive analysis while maintaining data correlation precision, thus resolving the contradiction between productivity and measurement precision.
Solution Approach 2:
The patent changes the time parameter of each facility's data according to its specific processing characteristics. By adjusting timestamps and compensation values based on facility type and operational parameters, the system achieves accurate correlation across multiple facilities while maintaining comprehensive data collection for productivity analysis.
Data Source
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AI summary
A process data editing method for a production line including a plurality of facilities having a plurality of devices that performs predetermined processing on a raw material and a conveyor that couples the plurality of devices and conveys the raw material includes a collecting step of collecting, by a collection unit included in a computer, process data indicating operational status of the plurality of facilities, and an editing step of compensating for a time lag according to a type of the facility through which the raw material passes in the production line and correlating the process data by an editing unit included in the computer.