What the data for this category looks like
Data sources for photovoltaic financing daily reports include credit submission documents for photovoltaic projects from financial institutions, financing ledgers from photovoltaic power station operators, and public project filing data from industry regulatory authorities. The update frequency is daily or per working day. Most single documents use structured PDF or Excel formats, with fixed fields: project unique identifier, installed capacity (unit: MWp), financing amount (unit: RMB ten thousand yuan), loan disbursement time, financing subject, and financing cost-related parameters. Most documents present daily financing dynamics for single or multiple projects in table form. Some documents include supplementary fields such as project location and filing number.
What constraints these characteristics impose on document parsing and chunking
Diverse sources create differences in document formats. These include watermarked PDFs exported by banks, plain text tables converted from Excel, and some old submission documents that are scanned versions. This requires parsing systems to support strong format adaptation. The daily update requirement demands fast parsing response times, to avoid delaying subsequent knowledge base updates. Fields have clear unit associations. Units for installed capacity and financing amount cannot be separated. Chunking must retain the contextual binding between fields and their corresponding units. Strong correlations exist between project fields. Complete financing information for a single project must be kept as a single chunk. Otherwise, subsequent retrieval will fail to match full project dimension data.
How to set the configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Single photovoltaic financing daily report documents usually do not exceed 20 pages. Parsing time will not exceed 120 seconds, covering most conventional scenarios |
maxChunkSize | 800–1000 characters | The combined length of single project-related fields in photovoltaic financing daily reports is moderate. This range can fully retain core information such as project number, installed capacity, and financing amount |
UPLOAD_FILE_MAX_SIZE | 500 MB | Single aggregated photovoltaic financing daily report documents usually do not exceed 50 MB. A reasonable buffer is reserved to handle temporary multi-project combined submissions |
chunkOverlap | 100–150 characters | Retain cross-chunk field association information, avoid core field breaks between adjacent chunks, and improve retrieval context integrity |
ENABLE_STRUCTURED_PARSE | Enabled | Most photovoltaic financing daily reports use structured table formats. Enabling this setting can accurately extract fields and their corresponding units, avoiding chaotic parsing results |
PARSE_PDF_WITH_OCR | Enabled only when scanned/watermarked documents are detected | Plain text PDFs do not require OCR processing, which reduces unnecessary computing overhead and improves parsing efficiency |
The parameter values provided on this page are general recommendations for setting configuration baselines. 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 Misconfigurations
- Scenario: After uploading a photovoltaic financing daily report document via the front-end dialog, the parsing status always shows "Pending Parsing" and no error logs appear in the backend. Cause: The
ENABLE_STRUCTURED_PARSEconfiguration is not enabled, and the document is a scanned watermarked format. The system cannot automatically trigger the OCR parsing process. - Scenario: After calling the parsing interface, service memory usage continues to rise, triggering system memory threshold alerts. Cause: The
UPLOAD_FILE_MAX_SIZEparameter is not restricted, and an oversized multi-project aggregated document is uploaded, and pre-document compression processing before chunking is not enabled. - Scenario: In the knowledge base chunking results, the installed capacity field and financing amount field are separated, making it impossible to match complete project information with a single search term. Cause: The
maxChunkSizesetting is too small, causing a single chunk to fail to accommodate the complete set of project-related fields.
How to Confirm Proper Configuration
- Upload a typical photovoltaic financing daily report document, check whether the core fields in the parsing result are complete, and verify that the units match the original document.
- View the parsing task time consumption logs, confirm that the time does not exceed the
PARSE_FILE_TIMEOUT_SECONDSsetting value. Adjust this parameter if timeouts occur. - Randomly sample multiple chunking results, check that each chunk contains at least one complete set of project-related field combinations, with no split or broken fields.
- Call the knowledge base retrieval interface, verify that the installed capacity and financing amount fields for the same project can be matched simultaneously, confirming that chunk association is retained 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.