What this category of data looks like
Documents and materials for coal-electric power integration scenarios mainly come from mine operation ledgers, power dispatch reports, purchase and sales contracts, safety inspection reports, and other sources. Data update cycles cover real-time dispatch sheets, daily operation logs, monthly production reports, and other multi-period schedules. Document formats include Word compliance reports of up to 100,000 Chinese characters, and Excel production data sheets with over 15,000 rows. Fields include coal calorific value, unit load, power supply, hidden danger rectification number, and others. Units include tons, kilowatt-hours, megawatts, and other professional measurement identifiers.
Constraints Imposed by These Characteristics on Document Parsing and Chunking
Splitting single long Word documents must avoid disrupting professional paragraphs. Truncated continuous descriptions of safety rectification processes will affect subsequent semantic association. Chunking Excel sheets with tens of thousands of rows must retain the binding relationship between headers and corresponding row data, to prevent loss of field meaning caused by splitting data rows individually. For multi-cycle updated production data, chunking must match the time dimension of business queries, to avoid forced merging of cross-cycle data. The binding relationship between professional measurement units and fields must be fully retained during parsing, to prevent ambiguous numerical content without units that would affect subsequent business judgments.
How to Set the Configuration
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Adapts to the professional paragraph length of coal-electric power integration documents, avoids breaking continuous semantics of safety reports and dispatch processes |
chunkSplitter | By paragraph + fixed character threshold | Adapts to the natural paragraph structure of Word documents, while limiting the maximum length of a single chunk to avoid excessive resource consumption caused by oversized chunks |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Adapts to the parsing time of Word documents with 100,000 Chinese characters, prevents parsing timeout and interruption of long documents |
chunkSettingMode | Manual customization | Configures chunking rules separately for Excel sheets with over 15,000 rows, retains the association between headers and data rows |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Supports uploading Word documents with 100,000 Chinese characters or Excel files with over 15,000 rows, meets the storage requirements of business documents |
Three Common Mistakes
- Phenomenon: Excel files return vague prompts after parsing, and complete data content cannot be extracted. Cause: The header binding rule for Excel chunking is not configured, resulting in loss of the association between headers and data rows during parsing, which triggers abnormal model recognition.
- Phenomenon: Parsing of Word documents with 100,000 Chinese characters times out, and the task fails. Cause: The
PARSE_FILE_TIMEOUT_SECONDSparameter is not adjusted, and the default value is used, causing long document parsing to be interrupted before completion. - Phenomenon: Chunked data blocks are too large, resulting in excessive resource consumption during RAG matching. Cause: A reasonable
chunkSizeparameter is not set, and the chunking length of general documents is used without adapting to the professional paragraph characteristics of coal-electric power integration documents.
How to Confirm Proper Configuration
- Upload a single Word document with 100,000 Chinese characters, confirm the parsing task status is completed without timeout errors.
- Upload an Excel file with 15,000 rows, view the chunked content after parsing, and confirm that headers and corresponding data rows are fully bound.
- Adjust the
chunkSizeparameter, test the text length after chunking, and ensure that professional paragraphs are not broken. - View the parsing log, confirm that the
UPLOAD_FILE_MAX_SIZEparameter does not restrict the upload size of the target file.
The values provided 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.