What Data for This Category Looks Like
Data for this category comes from battery cell grading, glass adhesive film backsheet batches, MES systems, string welding and lamination equipment, and EL/IV testers. Daily documents include layout diagrams, material batch records, lamination process records, EL crack images, IV test reports, insulation voltage resistance records, and packing lists. Records are generated for each module and each material batch, with updates matching this generation schedule. Fields include batch number, current gear, lamination temperature, EL defect locations, power value, and more. Some documents include unit attributes such as pixel dimensions and timestamps.
Constraints for HTTP Interfaces and External Systems
Scattered data sources and frequent updates require HTTP interfaces to pull multi-source data, and adapt to protocol formats of different devices and systems. Single module or batch data has a small volume, but is generated at high frequency. Interfaces must support high-concurrency requests to avoid blocking production workflows. Document types are diverse, including structured records and unstructured images. Interfaces must support requests and responses in both binary stream and JSON formats. Fields include business-specific identifiers such as batch number and current gear. Interface request parameters must exactly match the field naming conventions of photovoltaic encapsulation business to avoid data matching errors.
Configuration Settings
| Configuration Item | Recommended Approach | Rationale |
|---|---|---|
Authorization | Carry a Bearer token | Complies with FastGPT v4.17.0 interface authentication standards, ensures secure access to external systems |
variables | Bind photovoltaic encapsulation-specific business fields | Matches parameters such as batch number and current gear to enable accurate data pulling |
responseData | Configure as JSON format | Compatible with data output formats of most MES and test equipment, facilitating field parsing |
| Request timeout | 30 seconds | Adapts to transmission durations of large files such as EL images and IV test reports, prevents request interruptions due to timeout |
| API request frequency limit | 60 times per minute | Adapts to the generation cadence of each module, avoids exceeding the concurrent load limit of external systems |
| API key validity period | 7 days | Matches the batch update cycle of photovoltaic encapsulation business, prevents production data synchronization interruptions due to expired keys |
Three Common Configuration Mistakes
- The
responseDatafield returned by the interface is empty. This occurs because business fields invariablesare not correctly bound, leading to failure to match photovoltaic module-specific records in the corresponding document library. - Interface requests frequently trigger 429 status codes. This occurs because a reasonable request frequency limit is not configured, exceeding the concurrent load limit of the external MES system, causing production data synchronization interruptions.
- EL image data pulled by the interface cannot be parsed normally. This occurs because the correct format for
responseDatais not configured, preventing key information such as crack locations from being extracted, affecting the judgment results of cross-review.
How to Confirm Correct Configuration
- Call the test interface, check if
Authorizationauthentication passes, and the returned status code is 200. - Manually trigger a data pull, verify that the pulled document fields include photovoltaic encapsulation business-specific content such as batch number and current gear.
- Simulate multi-batch data requests, confirm that the interface requests do not trigger abnormal status codes, and synchronization delay meets business expectations.
- Check that unstructured data such as pulled EL images and IV test reports can be parsed normally, matching parameters from corresponding process records.
The values provided here are common starting points, and should be measured against the reader's own samples.