What This Category of Data Looks Like
Sources include official marketing materials from photovoltaic equipment manufacturers, dealer promotion assets, and industry marketing case compilations. Update frequency follows new product launches and policy adjustments, with higher rates when new products debut. Document structures are mixed: they include structured parameter tables, long scenario-based marketing copy, and investment promotion policy clauses. Some documents embed product photos and parameter comparison charts. Fields include product model, rated power, warranty period, applicable scenarios, investment promotion policy details, and more. Common industry units include W, kW, mm, and others.
Constraints for Document Parsing and Chunking
Mixed-format photovoltaic marketing documents contain both structured parameter tables and unstructured marketing copy. Chunking must avoid breaking the logical link between parameters and their corresponding products. Long texts such as investment promotion policies and scenario descriptions make up a large share of content. Chunking must preserve semantic completeness, and avoid splitting policy clauses to prevent logical breaks. Some documents embed parameter comparison charts. Direct extraction of values from these charts is not possible. Text blocks surrounding the charts must be retained to ensure subsequent retrieval can connect to parameter information. Discrete parameter fields such as model and power must retain their corresponding relationships during chunking. This avoids losing the ability to restore parameter associations after splitting.
How to Configure Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunk_size | 800–1200 characters | Photovoltaic marketing documents include long policy texts and structured parameters. This range balances semantic completeness for long texts and compactness for parameter blocks |
chunk_overlap | 100–150 characters | Ensures semantic connection between adjacent chunks, and avoids logical gaps when splitting long copy or parameter descriptions |
parse_pdf_mode | accurate | Photovoltaic marketing documents often include parameter tables and embedded charts. This mode fully extracts discrete parameters within tables |
max_parse_file_size | 500 MB | Accommodates large-scale investment promotion brochures and industry whitepapers uploaded by photovoltaic enterprises in bulk, and prevents parsing failures due to oversized files |
parse_timeout | 120 seconds | Large documents require longer processing time, and prevents parsing interruptions due to timeout |
parse_docx_keep_table_structure | Enabled | Retains the row and column structure of parameter tables, and ensures the corresponding relationship between model and power can be fully preserved during subsequent chunking |
The parameter values provided on this page are common starting points for configuration setup. Actual values are affected by material format, data volume, and business rules. Specific issues require targeted analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Configuration Errors
- Issue: Files parse normally when uploaded locally, but return a 404 error after server deployment. The parsing node cannot access file content. Cause: Static file hosting paths are not configured during server deployment, or the uploaded file storage directory lacks read/write permissions. This prevents the parsing node from accessing uploaded files.
- Issue: Deploying Qwen3-14B with Vllm 0.10 fails to extract photovoltaic parameter fields from parsing results. Empty fields or garbled formatting are returned. Cause: This model version has limited adaptation for recognizing structured discrete parameters, and has not been optimized for photovoltaic industry-specific parameter formats. This leads to inaccurate extraction of business fields.
- Issue: Bulk uploading photovoltaic marketing documents results in some chunks losing the connection between parameters and their corresponding products. Cause: Context from adjacent parameter blocks is not retained during chunking. The binding relationship between parameter tables and product descriptions is split, which prevents subsequent retrieval from linking parameters and product information.
How to Confirm Proper Configuration
- Upload a photovoltaic marketing document that includes structured parameter tables and long-form copy. Check if parsing results fully extract business fields from tables.
- Review chunking results to confirm long text content is not split into semantically incomplete fragments.
- Test uploading documents of varying sizes to confirm parsing processes do not fail due to files exceeding configured limits.
- Verify the parsing timeout configuration to confirm large document parsing processes do not interrupt before the set timeout period.
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.