What the Data for This Category Looks Like
Documents for construction machinery marketing content mainly originate from official product manuals, industry bidding technical documents, offline promotional brochures, and customer customized solution documents. Updates are triggered irregularly alongside new product releases and core parameter adjustments. Document structures include three core content types: fixed parameter sections, text-and-image mixed function descriptions, and competitor comparison tables. Fields cover parameters such as complete machine weight, rated power, working radius, and more. Units mostly use general engineering standards like kilograms, kilowatts, and meters. Some export documents include supplementary explanations in imperial units.
Constraints for Document Parsing and Chunking
The structured fixed parameter sections require the parsing process to accurately identify field boundaries, to avoid splitting across parameter blocks which leads to fragmented parameter information during retrieval. Text-and-image mixed function descriptions require the parsing workflow to retain the association between images and their corresponding text, to prevent breaking the matching logic between images and text during chunking. Fields with mixed units require the parsing process to retain original unit labels or complete unified format conversion, to avoid unit confusion in subsequent retrieval. Long-text bidding solution documents require chunking logic to adapt to the semantic integrity of engineering long paragraphs, to prevent truncation of core technical descriptions.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Construction machinery marketing documents often include long text parameter tables and text-and-image mixed content; 600 seconds covers full parsing time for most documents |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Some engineering product manuals can reach hundreds of megabytes per file; 1000 MB meets the upload requirements for most large documents |
maxChunkSize | 800–1200 characters | The semantic unit length of construction machinery parameters and function descriptions mostly falls within this range, ensuring semantic integrity after chunking |
chunkOverlap | 100–150 characters | Retains overlapping content between adjacent chunks, preventing truncation of cross-chunk parameter association information |
IMAGE_PARSE_ENABLE | Enabled | Product appearance and job scene images are core information in marketing documents, so image-text association parsing is required |
PARSE_UNIT_CONVERT | Based on actual measurement and calibration | Construction machinery documents have scenarios with mixed units; select to retain original units or perform unified conversion according to business needs |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require specific analysis, and it is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Symptom: After uploading a marketing document with embedded images, the parsing result returns an invalid image error or empty image fields. Cause: The
IMAGE_PARSE_ENABLEconfiguration is not enabled, or the image format is a rare RAW format in engineering documents. - Symptom: Timeout errors occur when parsing large engineering parameter manuals. Cause: The
PARSE_FILE_TIMEOUT_SECONDSconfiguration value is lower than the actual parsing time required for the document. - Symptom: Cross-parameter information fragmentation appears in chunked retrieval results. Cause: The
maxChunkSizevalue is too small, truncating complete technical parameter description paragraphs.
How to Verify Proper Configuration
- Upload a construction machinery product manual document that includes parameter tables and embedded images, and check whether the parsing result retains the association between images and their corresponding text.
- Upload an engineering document with a file size close to 1000 MB, and confirm that the upload and parsing processes do not trigger size limit or timeout errors.
- Adjust the
maxChunkSizesetting, compare chunking results under different configurations, and confirm that the chunk length meets business semantic requirements. - View parsing logs to confirm that unit conversion or chunk overlap configurations have taken effect as required by the business.
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.