What Does This Category’s Data Look Like
This category of data originates from the national sewage discharge permit management information platform, enterprise environmental protection ledgers, online monitoring systems, and environmental statistics systems, with a quarterly update frequency. Commonly processed documents include sewage discharge permit application forms, implementation reports, self-monitoring plans, ledger records, change applications, and permit copies. Fixed-format permit documents and dynamically updated monitoring and ledger data are covered. Documents include professional fields such as industry technical specifications, permit limits, self-monitoring results, and change items, and do not have a unified lightweight general format. Dedicated form structures are present in some files exported from platforms.
Constraints Imposed on Document Parsing and Chunking
Documents from multiple sources have significant format differences. Adaptation is required for dedicated PDF forms, Word-format ledgers, plain-text monitoring records, and other formats, so parsing rules must be adjusted for specific use cases. The volume of documents updated in quarterly batches is large, so batch parsing and chunking must be supported to avoid single-processing timeouts. Chapter structures vary significantly across different documents. For example, permit copies have a fixed clause structure, while implementation reports have a ledger structure categorized by cycle. Chunking rules must match the document type to preserve contextual connections. Professional fields such as permit limits must be fully retained and not incorrectly truncated, as this would affect the accuracy of subsequent policy-based Q&A.
Configuration Settings
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Sewage discharge permit documents contain professional limits and ledger entries. This range preserves the full context of a single permit limit or single monitoring record |
chunkSplitter | Split by document structure | Adapts to the fixed chapter structure of sewage discharge permit documents, avoiding separation of permit clauses and corresponding implementation requirements |
customPdfParse | Enabled | Adapts to the dedicated PDF form format exported by the national sewage discharge permit management information platform, preserving form fields and typesetting |
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Supports batch processing of quarterly updated implementation reports and ledger documents, avoiding timeouts due to oversized files |
UPLOAD_FILE_MAX_SIZE | 500 MB | Supports enterprises uploading complete packaged annual implementation report files |
Three Common Misconfigurations
- Issue: After a PDF exported from the national sewage discharge permit management information platform is uploaded, the parsing result loses form fields. Cause: The
customPdfParseconfiguration is not enabled. The default parsing rule cannot recognize the platform’s dedicated PDF form format. - Issue: After a Word-format self-monitoring plan is parsed, image links do not retain their original domain names, making images unable to load properly in conversations. Cause: Custom parsing rules for handling image links in Word documents are not configured. The default parsing strips domain name information.
- Issue: When batch uploading quarterly implementation report files, parsing tasks time out and fail. Cause: The value of
PARSE_FILE_TIMEOUT_SECONDSis lower than the time required for file parsing, and does not adapt to the processing rhythm of batch documents.
How to Confirm Correct Configuration
- A standard permit copy PDF is uploaded, and all form fields and chapter titles are verified to be retained in the parsing result.
- A Word-format self-monitoring plan containing images is uploaded, and the parsed Markdown file is checked to confirm the full domain name is retained in image links.
- A single quarterly implementation report file is uploaded, and parsing tasks are confirmed to complete within the preset duration without timeout errors.
- A segment of text containing permit limits is selected, and chunked fragments are verified to fully retain the limit content and associated explanations.
The values given are common starting points and should be measured against the reader's own samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.