What the data for this category looks like
Data for black home appliance intelligent due diligence reports comes from official manufacturer quality inspection reports, third-party compliance test documents, channel inbound batch lists, and after-sales fault statistics documents. Update cycles adjust based on new product launches, quarterly spot checks, and after-sales data aggregation, with no fixed schedule. Document formats include structured PDFs, multi-column CSV tables, and plain-text compliance statements. Fixed fields include product model, energy efficiency rating, rated power, heavy metal content limits, batch number, and test date. Units include watts (W), ppm, rating codes, and others. Some documents nest performance parameter tables across multiple operating conditions.
What constraints do these characteristics impose on the "document parsing and chunking" workflow?
Multiple sources and format differences require the parsing workflow to support PDF table extraction, multi-column CSV parsing, and plain-text structured conversion. This avoids missing parameter-unit associations unique to home appliances. Irregular bulk document updates require the chunking workflow to support high-concurrency processing, while retaining contextual links for timestamp fields such as batch number and test date. Nested technical parameter paragraphs and multi-column test data require chunk lengths to cover complete operating condition descriptions, to avoid splitting cross-page compliance statements. Extracting only the first two columns from bulk CSV data will lose critical due diligence information such as test items and multi-dimensional power consumption. Parsing logic must support multi-column fields.
How to set the configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Black home appliance quality inspection reports often contain multi-page technical parameters and nested tables. A custom parsing service needs sufficient time to complete full extraction, to avoid mid-process timeout interruptions |
maxChunkSize | 800–1200 characters | Technical parameter paragraphs in black home appliance documents are mostly coherent operating condition descriptions. This length preserves complete context for a single set of test data, avoiding split breaks in parameters |
CSV_PARSE_COLUMN_LIMIT | 0 (no limit) | Bulk test CSVs for black home appliances include multiple dedicated fields such as test items, batch numbers, and multi-dimensional power consumption. Using only the first two columns by default will lose critical due diligence data |
CUSTOM_PARSE_SERVICE_ENABLE | Enabled | Black home appliance documents include fixed-format compliance statements and structured tables. Custom parsing can accurately match industry-specific field extraction rules |
CHUNK_OVERLAP_RATE | 15% | Logical links exist between technical parameters and compliance items. Overlapping chunks avoid loss of cross-block parameter associations, ensuring contextual integrity of due diligence reports |
The parameter values provided on this page are common recommended starting points for configuration setup. Actual values are affected by material form, data volume, and business rules. Specific issues require targeted analysis. It is recommended to test against your own samples before finalizing settings.
Three common misconfiguration errors
- After uploading a black home appliance quality inspection PDF, the parsing result contains no table data and only returns plain text. Cause: The custom parsing service is not enabled, or the
CUSTOM_PARSE_SERVICE_URLconfiguration is incorrect, and the parsing node that supports home appliance industry table extraction is not connected. - Custom parsing service calls time out, and the system log returns
504 Gateway Timeout. Cause: The value set forPARSE_FILE_TIMEOUT_SECONDSis lower than the actual parsing time. The default value of this parameter in FastGPT 4.8.20-fix2 is relatively short, and cannot meet the parsing requirements for multi-page home appliance reports. - After importing bulk test CSV files, only the first two columns of data are displayed. Cause: The
CSV_PARSE_COLUMN_LIMITparameter is not adjusted. The default configuration only reads the first two columns, and does not adapt to the field structure of black home appliance CSVs that include multiple test items.
How to confirm configurations are set correctly
- Upload a single black home appliance quality inspection PDF, check if the table fields in the parsing result include dedicated parameters such as power and energy efficiency rating, and verify that units match the original document.
- Check the call time of the custom parsing service in the system log, confirm that the value set for
PARSE_FILE_TIMEOUT_SECONDSis greater than the actual time spent. - Import a bulk test CSV file, check if the parsed data columns include fields such as test items and batch numbers that are not in the first two columns.
- Extract the chunked document fragments, confirm that overlapping technical parameter descriptions exist between adjacent chunks, and that no contextual breaks of critical parameters occur.
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.