Data Characteristics for This Category
The core data for this category comes from customer drawings, special characteristic lists, ERP/MES systems, measuring tools, equipment process parameters, and supplier quality certificates. Daily generated documents include control plans, process flowcharts, work instructions, first-piece and patrol inspection records, SPC reports, PPAP materials, and 8D reports. Most documents contain fixed fields such as part numbers, production batches, test values, and deviation ranges, with professional units like mm, N, and ppm. Updates are collected continuously based on production batches and shifts, and the volume of documents per batch fluctuates with production capacity.
Constraints on Document Parsing and Chunking
Data sources are scattered and have diverse formats, ranging from standardized PPAP reports to hand-filled patrol inspection records, requiring adaptation to document structures with different layouts. Fixed fields such as part numbers and batch numbers must be extracted accurately, and associated information must not be split during chunking. Continuous high-frequency updates require a stable and efficient parsing process to avoid affecting batch processing due to single-document parsing timeouts. Automotive component quality traceability requires associating batch data across multiple documents, so chunking must retain cross-document contextual association clues. It is also necessary to adapt to table-style documents containing a large number of test values, avoiding damage to data integrity during chunking.
Configuration Settings
This configuration is based on FastGPT v4.17.0.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Adapts to the mixed structure of short fields such as test parameters and batch information and long text in documents of this category, avoiding splitting of key associated data |
chunkSplitter | Split by paragraph + fixed header | Matches the document structure with fixed headers such as work instructions and SPC reports, retaining complete information units for single process or single batch |
customPdfParse | Enable table recognition mode | Accurately extracts test values and batch information in cells for batch table-style documents such as SPC reports and PPAP materials |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Adapts to the scenario of uploading multiple documents in a single batch, meeting the centralized storage requirements for high-volume production documents |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Avoids parsing timeouts for large PPAP packages or multi-table documents, ensuring stability of the batch parsing process |
chunkSettingMode | Manual configuration | For documents with many fixed fields in this category, manually adjust chunking rules to retain key associated information such as part numbers and batch numbers |
Common Misconfigurations
- Detected values and batch numbers may be split into different chunks following automatic chunking. This occurs when exclusive chunking rules are not configured for fixed fields in this category, and only general automatic chunking logic is used.
- When uploading a single batch of documents, the parsing result may include data from previously uploaded documents of the same model. This occurs when the switch to only parse the currently uploaded file is not enabled, causing the system to load historical document contexts by default.
- After importing a multi-column Excel table, test parameters and units may not be displayed in association. This occurs when the custom table parsing mode is not enabled, and the general chunking logic disrupts the column correspondence of the table.
How to Verify Correct Configuration
- A standard SPC report document may be uploaded, and the chunking result checked to confirm whether complete single-batch test data and header information are retained.
- A single packaged document may be uploaded, and the parsing log reviewed to confirm only the currently uploaded file is processed, with no historical documents loaded.
- Multi-column Excel patrol inspection records may be imported, and the chunking result verified to confirm whether the part number, test value, and corresponding unit are retained for each row.
- A large PPAP material package may be uploaded, and the parsing process checked to confirm no timeout errors are triggered, with batch information retrievable normally after completion.
The values provided are common starting points and should be measured against the reader's own samples.