What Data for This Category Looks Like
This category serves entities including special equipment sections of market supervision bureaus and inspection and testing institutions. Data sources include the special equipment safety supervision system, inspection and testing institution systems, user ledgers, and operator certificate databases. Daily documents include use registration certificates, periodic inspection reports, maintenance records, hidden danger rectification notices, accident reports, and operator certificates. Core fields include unique device identification number, inspection validity period, maintenance cycle, operator qualification identification number, hidden danger rectification status, and others. Data is updated once per month. It covers all documents associated with the full lifecycle of equipment, including registration, inspection, maintenance, and rectification processes.
Constraints on Knowledge Base Retrieval and Recall from These Characteristics
Data sources are scattered and tied to unique device identifiers. Retrieval must use device identification as a linking condition to prevent irrelevant documents from different devices from being recalled. The monthly update frequency means retrieval results must sync with the latest inspection and rectification data. Configure a regular data source synchronization trigger mechanism to ensure recalled content is timely. Core documents involve highly regulated qualification and cycle information. Retrieval and recall must guarantee unique results, and exclude expired or invalid document content. Supervision scenarios require quick location of compliance basis. Retrieval results must prioritize policy clauses and device records directly related to the current query.
Configuration Settings
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
similarity | 0.75–0.85 | Matches the strong semantic association requirement for linking policies and devices, filters low-relevance general supervision documents |
limit | Top 6 entries | Covers multiple types of documents across the full device lifecycle, including registration, inspection, and maintenance, to avoid insufficient information in single results |
searchMode | Semantic retrieval + keyword hybrid | Adapts to the precise keyword needs of policy clauses and semantic matching for device identifiers |
usingReRank | Enabled | Performs secondary sorting on initial recall results by relevance, prioritizing content that best matches the current supervision query |
datasetSearchUsingExtensionQuery | Enabled | Automatically expands synonyms related to supervision to cover different expressions in policy text, such as expanding "maintenance" to "daily maintenance and upkeep" |
Three Common Mistakes
- File upload via dialog prompts a 503 error, while knowledge base upload works normally. The cause is that the upload process does not adapt to the format verification rules for special equipment documents. The system triggers service rate limiting for single doc format maintenance records larger than 10 MB. Knowledge base bulk upload uses segmented verification to avoid this issue.
- Semantic retrieval fails to hit knowledge blocks with specified keywords. The cause is that
datasetSearchUsingExtensionQueryis not enabled. No keyword synonym expansion is performed, so "periodic inspection" in policy text cannot match the search term "annual inspection". - Complex supervision queries do not return accurate answers. The cause is that only a single document is recalled, and multiple records across the full device lifecycle are not linked. A complete compliance basis chain cannot be formed.
How to Verify Proper Configuration
- Upload a maintenance record document that includes a device number and inspection cycle. Initiate a supervision query that includes the device number. Confirm that retrieval results include the document content.
- Adjust the
similarityparameter value. Observe changes in retrieval result relevance to verify that the threshold setting meets business requirements. - Enable
usingReRank, then compare retrieval result rankings before and after enabling to confirm the re-ranking function is active. - Test uploading a single doc format hidden danger rectification notice. Confirm no 503 error occurs to verify that the format adaptation configuration is active.
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.