Data Characteristics for This Category
Daily documents for welded structural component manufacturing include welding procedure qualification records, welding procedure specifications, welding electrode consumption records, welder qualification records, weld inspection reports, and repair work orders. Data sources include design drawings, material quality certificates, welding equipment parameters, welding electrode warehouses, non-destructive testing systems, and personnel qualification ledgers. Update frequency follows per weld seam, per batch, or per shift schedules. Most documents have fixed fields such as weld number, welding electrode model, test values, and welder certification number. Some records are tabular, others are long texts with process descriptions.
Constraints Imposed on Document Parsing and Chunking
Documents for welded structural component manufacturing consist of closely linked process, inspection, and qualification records. Associated documents for a single weld seam must retain contextual connections. Chunking operations must not break the correspondence between process steps and test results. Document update frequency is high, and formats vary widely. This includes both standardized qualification ledger tables and non-standardized scanned repair work orders. Parsing must adapt to diverse document structures. Some documents contain technical parameters and numerical values. Chunking must preserve field integrity. Splitting technical parameters must not break their association with corresponding processes. Bulk uploaded documents have large file sizes. Parsing must support stable processing of large files and batch uploads.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Documents in this category are mostly long texts with technical parameters. This range preserves the integrity of single welding process or inspection content |
chunkSplitter | Split by paragraph + heading | Documents in this category typically have clear headings for welding processes and inspection items. Splitting by heading prevents cross-process chunking |
customPdfParse | Enable structured parsing + OCR mode | Documents in this category include extensive tabular records for welding electrode consumption and welder qualifications. Some documents are scanned image files. This mode retains table fields and extracts text from images |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Single design drawings and bulk inspection report files have large sizes. This upper limit covers conventional bulk upload requirements |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Large PDF files require extended parsing time. This duration prevents mid-parsing timeouts for bulk document sets |
chunkSettingMode | Manual configuration | Documents in this category have significant format differences. Manual configuration allows flexible adjustment of chunking rules to match different document types |
This document is based on FastGPT v4.17.0 configuration guidelines
Three Common Configuration Mistakes
- Phenomenon: Parsing errors occur when uploading hundreds of pages of welding procedure qualification PDF files. Small-volume documents parse normally. Cause: The
PARSE_FILE_TIMEOUT_SECONDSorUPLOAD_FILE_MAX_SIZEparameters are not adjusted. Large file parsing times out or exceeds the upload limit. - Phenomenon: Defect description fields cannot be extracted when parsing scanned weld inspection reports. Cause: OCR parsing mode for
customPdfParseis not enabled. Only plain text PDF parsing is supported. - Phenomenon: Recalled content has high repetition rates after chunking. Multiple duplicate welding electrode consumption records appear. Cause: The overlap range setting for
chunkSplitteris too large. Adjacent chunks contain extensive duplicate content.
How to Verify Correct Configuration
- Upload a 100+ page weld inspection report PDF. Confirm parsing completes within the set duration, with no timeout or parsing failure alerts.
- Randomly select a parsed welding electrode consumption record. Verify that table fields are complete, with no misalignment or null values.
- Adjust
chunkSizeto 800 characters. Confirm chunked content retains full information for a single welding electrode consumption record, with no critical parameters split. - Test batch uploading 5 documents of different types from this category. Confirm all documents parse normally and generate corresponding chunks.
The values provided are common starting points and should be measured against the reader's own samples.