What this category of data looks like
Automated equipment investment research data mainly comes from equipment manufacturer public technical manuals, industry standard specifications, broker special research reports, equipment operation logs, and patent literature. The update rhythm varies significantly: manufacturer technical manuals are updated quarterly to annually, industry research reports are released monthly alongside project progress, and equipment operation logs are updated in real time as incremental data. Document structures mostly include structured parameter tables, assembly schematic descriptions, fault code comparison tables, and performance test reports. Core fields include equipment model, manufacturer, rated power, operating speed, and more. Parameter units uniformly follow mechanical industry standards, such as kW for power and r/min for rotational speed.
What constraints do these characteristics impose on the document parsing and chunking process
High proportion of structured parameter tables: Parsing must accurately identify table row and column structures, and avoid splitting parameters and their corresponding units into different chunks. Wide range of single document lengths: Coverage spans from a few pages of small equipment manuals to dozens of pages of large unit technical specifications. Chunking must retain contextual association of parameter groups, and avoid separating related information. Real-time operation logs use incremental updates: The system must support batch parsing and chunking by timestamp, to adapt to knowledge base incremental synchronization. Fault code comparison tables are mostly composed of short entries: Chunking thresholds must match the length of a complete single code and its description, to ensure complete information in a single chunk. Documents contain a large number of equipment drawings and annotations: Parsing must retain the association between images and their corresponding text descriptions.
How to set the configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Automated equipment manuals often contain a large number of drawings and tables, leading to long parsing times. 600 seconds covers the parsing process for most large documents |
maxChunkSize | 800–1200 characters | A single set of automated equipment parameter form parameters is approximately 50-100 characters. Combined with descriptive text, 800-1200 characters can fully cover the descriptive content associated with a single set of parameters, avoiding splitting critical information |
chunkOverlap | 100–150 characters | Equipment parameters have a strong association with preceding and following technical descriptions. The overlap length ensures contextual association is not broken |
PARSE_TABLE_ENABLE | Enabled | Structured parameter tables in automated equipment documents are core investment research data. Enabling this setting fully extracts table content and retains row and column structures |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Complete technical manuals for large units may contain multiple pages of drawings and test data. 1000 MB covers the volume limit for most single documents |
PARSE_IMAGE_INCLUDE_ALT | Enabled | Drawing annotations in equipment documents mostly exist as alt text. Enabling this setting includes annotation information in chunked content, improving retrieval accuracy |
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 specific analysis. It is recommended to test on your own samples before finalizing values.
Three common mistakes
- Phenomenon: After importing a Word document, the domain name prefix of images in the document is lost, only relative paths remain, and images cannot load properly during conversations. Cause: The Word document parsing module extracts local relative paths by default, and does not bind the domain name used during file upload to the image path, resulting in incomplete path information.
- Phenomenon: In the parsed chunk results, some equipment parameter groups are split into two separate chunks, and complete parameter descriptions and corresponding fault codes cannot be obtained during retrieval. Cause: The
maxChunkSizeparameter was not adjusted for the structured characteristics of automated equipment documents, and the default chunk length is insufficient to cover the total length of a single set of related information. - Phenomenon: After uploading a large equipment technical manual with more than 500 pages, the parsing task times out and fails, returning a
504status code. Cause: ThePARSE_FILE_TIMEOUT_SECONDSparameter was not adjusted, and the default timeout duration is insufficient to complete parsing of documents containing a large number of drawings and tables.
How to confirm the configuration is properly set
- Upload a typical automated equipment technical manual, check the parsed text content to confirm that the table structure is complete, and parameters and their units are not split.
- After adjusting chunk-related parameters, upload a document containing long parameter groups, check whether the chunk results completely cover a single set of related information without splitting.
- Upload a document containing multiple equipment drawings, confirm that the alt text information of the images is retained in the parsed results, and annotation content can be matched during retrieval.
- Test uploading a large-volume document, confirm that the parsing task does not have a timeout error, and knowledge base chunks can be generated normally after completion.
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.