What This Category of Data Looks Like
Core data for spray coating and painting scenarios comes from coating supplier TDS/SDS, spray booth and oven operating data, colorimeters, film thickness gauges, environmental monitoring equipment, and MES systems. Daily business documents include coating process cards, coating batch sheets, paint mixing records, film thickness and color difference reports, oven curves, defect repair orders, and VOCs logs. Data update cadence follows: updated with each coating batch, synchronized operating parameters per shift, and continuous collection of online monitoring data. Fields include technical parameters with clear units: film thickness (unit μm), color difference ΔE, oven temperature (unit ℃), VOCs concentration (unit mg/m³), and similar items.
What Constraints Do These Characteristics Impose on the "Source Citation and Traceability" Link
Multi-source heterogeneous data sources require the traceability system to support matching documents in different formats, to avoid missing key data such as coating TDS and online monitoring records. The high-frequency update feature requires the knowledge base synchronization frequency to match production rhythm, ensuring retrieved content is the latest batch of process and testing data. Fields with clear units must be fully retained, otherwise the compliance of coating parameters cannot be verified. The matching logic for core process links is complex, requiring a moderate traceability context length to avoid resource occupation by redundant data during generation. If traceability errors occur, serious consequences such as batch appearance repairs, unqualified adhesion, or VOCs management violations may result. This raises higher requirements for traceability accuracy and completeness.
Configuration Settings
This configuration is formulated based on the parameter logic of FastGPT v4.17.0.
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
quoteMaxToken | 800–1200 token | Matches the average single-paragraph length of coating process documents, avoids context overflow |
responseData | Return top 3 traceability entries | Covers the three core business document types: process cards, paint mixing records, and defect reports |
detail | Display full fields and units | Retains original identifiers for key parameters such as film thickness (μm) and oven temperature (℃) |
| Chunk length | 500–800 characters | Adapts to the paragraph structure of coating process cards, avoids cutting critical process steps |
| Overlap length | 50–80 characters | Prevents cross-paragraph process parameters from being truncated, ensures context coherence |
| Single search limit | Retrieve top 10 results | Balances data retrieval volume and response speed, covers core data from multiple sources |
Three Common Configuration Errors
- After associating a local knowledge base, the answer body does not include knowledge base content, only displays entries in the traceability panel. The cause is that
quoteMaxTokenis set too small, preventing traceability content from being included in the generation context. - The traceability panel shows no corresponding documents. The cause is that no chunking rules matching the format of coating TDS/SDS have been configured, causing documents to not be correctly identified.
- Response timeout occurs. The cause is that the single search limit is set too high, causing the retrieved data volume to exceed the system processing threshold.
How to Confirm Successful Configuration
- Submit a coating process question that includes parameters such as film thickness and oven temperature, check whether the answer body includes corresponding technical information with units.
- Open the traceability panel, confirm that the retrieved entries include core business document types for this category, such as coating batch sheets and VOCs logs.
- Test multiple consecutive rounds of questions and answers, check that the number of traceability entries per response stays within the set range.
- Simulate a coating defect analysis scenario, input relevant questions, confirm that the traceability data includes associated documents such as defect repair orders and color difference reports.
The values provided are common starting points and should be measured against the reader's own samples.