What this category’s data includes
Core data for this category comes from product 3D models and GD&T specifications, process route documents, coordinate measuring machine data, measurement system collection results, on-site trial feedback and change records. Daily documents include fixture requirement specifications, positioning datum schemes, fixture design drawings, gauge operation instructions, acceptance reports, calibration records, and version change ledgers. Data updates are triggered by project initiation, product changes, and periodic calibrations, with no fixed cycle. Document fields include positioning datum coordinates, clamping force parameters, GD&T tolerance values, calibration validity periods, version numbers, and other relevant fields, with units including millimeters, newtons, days, and other common engineering units.
Constraints on source citation and traceability
The multi-source nature, non-fixed update cycle, and complex document structure of this category’s data create clear constraints for citation and traceability. First, engineering documents include version change ledgers, so traceability must bind version numbers and change times to avoid confusion between different iteration stages of fixture data. Second, data comes from measurement systems such as coordinate measuring machines, so traceability must accurately match the storage path and collection time of original measurement data to ensure results are reproducible. In addition, individual document lengths vary widely, ranging from drawing text to calibration records, so traceability must support snippet retrieval and full citation for different document types. Finally, updates triggered by projects and changes require traceability systems to support dynamic association with the latest version of document data.
Configuration settings
This configuration is based on FastGPT v4.17.0.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
quoteMaxToken | 800–1200 token | Adapts to the single-document length of fixture drawings and calibration records, avoiding truncation of critical tolerance or measurement data |
responseData | Enable metadata return | Retains document version numbers, calibration dates, and source system identifiers to meet the traceability and version management requirements of this category’s documents |
detail | Enable detailed traceability | Displays corresponding snippets and storage paths of original documents to meet traceability requirements for engineering acceptance |
| Maximum associated knowledge base entries per query | Top 10 | Matches the volume of fixture and gauge documents for a single project, avoiding context overload |
| Total associated knowledge base word count limit | 1000–1500 MB | Adapts to the total storage volume of documents for a single project category, calibrated via actual testing |
Three common configuration errors
- Symptom: Output does not display the version number or calibration date of the source document. Cause: Metadata return configuration is not enabled, and critical traceability fields for engineering documents are not retained.
- Symptom: New documents fail to load after the knowledge base association limit is exceeded, or the number of returned results is insufficient. Cause: The maximum per-query knowledge base association limit and total word count limit are not adjusted to match the scale of this category’s documents, triggering system restrictions.
- Symptom: The large language model output does not reference uploaded fixture drawing snippets. Cause: The
quoteMaxTokenparameter is not configured with a sufficient value, causing original drawing snippets to be truncated or unable to be retrieved.
How to verify correct configuration
- The reader can initiate a query that includes fixture positioning datum parameters, and check whether the returned results include metadata such as document version numbers and calibration dates.
- The reader can upload a single fixture design drawing, then view the knowledge base association list to confirm that the number of associated entries matches the configured limit.
- The reader can trigger a query, then expand the traceability details panel to check whether corresponding snippets and storage paths of the original document are displayed.
- The reader can upload multiple documents from this category, and confirm that the system does not display error prompts for exceeding total storage volume limits.
The values provided here are common starting points and should be evaluated against the reader’s own samples.