What Data Looks Like for This Category
Documents for aerospace equipment intelligent due diligence include publicly available development documents from military aircraft manufacturers, military type approval reports, aviation material qualification certificates, national and industry standard documents (such as the GJB series), and supply chain supporting qualification materials. Update cycles adjust alongside new aircraft type finalization, aviation material iterations, or standard revisions. There is no requirement for high-frequency real-time updates.
Document structures include structured parameter tables, long-form technical descriptions, multi-sheet aviation material lists, and report bodies with clear title hierarchies. Fields cover equipment model, development unit, finalization time, core performance parameters, supporting aviation material models, test data, and more. Units mostly use military standardized measurement systems, such as kilonewtons, meters, kilometers, kilograms, and others.
What Constraints Do These Characteristics Impose on the "Document Parsing and Chunking" Link
Aerospace equipment due diligence documents have a high volume of structured parameters and dense professional terminology. Many Excel aviation material lists include merged headers. The parsing process must accurately identify table structures and row-level record boundaries to prevent broken correspondence between parameters and units.
Large PDF or multi-sheet Word documents make up a large share of files, with single files often reaching hundreds of MB in size. This creates higher requirements for parsing duration and memory usage.
Professional term combinations (such as engine model codes) must be fully retained within a single chunk. Splitting these combinations would break context and reduce subsequent retrieval accuracy.
Aviation material lists imported from Excel must be split independently by row. If not, subsequent retrieval will disperse a single record across multiple chunks, making full matching to queries impossible.
How to Set Configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
UPLOAD_FILE_MAX_SIZE | 1000 MB | Single aerospace equipment due diligence documents often contain multiple pages of type approval reports and aviation material lists. This setting adapts to large file uploads |
PARSE_FILE_TIMEOUT_SECONDS | 900 seconds | Parsing large PDF or multi-sheet Excel files takes a long time. This duration prevents mid-parsing timeout interruptions |
chunk_size | 1000–1200 characters | Aerospace equipment documents contain long technical descriptions and structured parameters. This length retains complete technical context and avoids splitting professional term groups |
custom_separator | ["\n", "，", "。", "；", "### "] | Adapts to Chinese punctuation and title hierarchies in aerospace equipment documents. Excel aviation material lists can correctly separate individual records via line breaks |
excel_parse_strategy | Split by row | Prevents aviation material lists imported from Excel from being merged into a single chunk. Ensures individual records remain independent |
AUTO_PARSE_TABLE | Enabled | Accurately identifies structured parameter tables in documents, retains the correspondence between fields and units, and avoids post-parsing parameter confusion |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require individual analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Configuration Errors
- Phenomenon: Imported Excel aviation material lists are automatically merged into a single chunk, with each row of records not split independently. Cause:
excel_parse_strategyis not configured to "Split by row". The default parsing strategy splits by the overall area, and does not adapt to the row-level record format of aviation material lists. - Phenomenon: Parsing Word format development documents larger than 10 MB throws a
504 Gateway Timeouterror. Cause:PARSE_FILE_TIMEOUT_SECONDSis not adjusted to a duration suitable for large files. The default timeout threshold is insufficient to cover parsing time. - Phenomenon: A text segment in an imported type approval report that exactly matches a query is not retrieved. Creating a knowledge base with the same configuration allows normal retrieval. Cause:
AUTO_PARSE_TABLEwas not enabled during the first import. This caused structured parameter tables to be incorrectly split, with chunk boundaries mismatched to the target text.
How to Confirm Correct Configuration
- Upload a single aerospace equipment document that conforms to the
UPLOAD_FILE_MAX_SIZEconfiguration, and confirm that the upload interface shows no file size limit exceeded prompt. - Import an Excel format aviation material list, and check the parsed chunk list to confirm that each row of records corresponds to an independent chunk.
- Extract the structured parameter table from the document, and check that the parsed result retains the correspondence between fields and units, with no content confusion.
- Submit a query that exactly matches the text of a complete chunk in the knowledge base, and verify that the chunk can be retrieved normally.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.