What the Data for This Category Looks Like
Data for the complete vehicle final assembly scenario uses VIN codes as the unique identifier. Daily data includes production orders, VIN lists, assembly work instructions, tightening data, offline inspection reports, rework records, and consistency and release documents. Data sources cover ERP/MES systems, VIN and configuration systems, supplier batch management, tightening tools, EOL inspection lines, and quality traceability systems. Update frequencies include real-time data per vehicle and batch summary data per shift. Fields include VIN codes, torque values (unit: N·m), inspection item numbers, part batch numbers, and more. The structure dynamically adjusts based on the configuration differences of individual vehicles, and is ultimately used for compiling part lists, quotation calculations, and consistency documents in tender documents.
Constraints Imposed on HTTP Interfaces and External Systems
Real-time data updates for individual vehicles require interfaces to support low-latency single requests. Batch summary data per shift requires interfaces to support batch calls to meet the needs of batch tender document preparation. As the core identifier, VIN codes require that interface parameters must carry VIN codes as a verification basis to avoid quotation deviations caused by incorrect data matching. Access to multi-source heterogeneous data requires interfaces to support format conversion for different systems, and also requires verification of the field integrity of returned data to ensure the accuracy of tender documents. Errors may lead to mismatched missing parts, vehicles unable to go offline, or even safety line stops. Therefore, interfaces must have retry mechanisms and exception alert capabilities to ensure the reliability of data flow.
Configuration Settings
The following configurations are adapted for FastGPT v4.17.0.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
Authorization | Carry a Bearer token with a 1-hour validity period | Complies with API security specifications and aligns with vehicle manufacturer permission control cycles |
variables | Bind VIN codes, torque thresholds, and inspection item IDs | Used to dynamically match exclusive configuration data for individual vehicles |
responseData | Verify that returned fields include VIN, tightening torque values, and inspection results | Ensure returned data corresponds one-to-one with request parameters |
| Timeout Period | 30 seconds | Aligns with real-time data fetching rhythm requirements to avoid disrupting final assembly line operations |
| Retry Count | 2 attempts | Addresses temporary network fluctuations and prevents single request failures from interrupting workflows |
| Maximum Batch Request Size | 50 items per request | Matches the production batch scale per shift, balancing interface load and efficiency |
Three Common Misconfigurations
- 404 Not Found error when calling the interface: Caused by incorrectly configuring the access path of the knowledge base collection, or failing to grant the calling account permission to access the corresponding collection.
- Empty fields appear when adding data in batches: Caused by failing to bind data source field mappings via
variables, resulting in inability to pull complete part configuration information from ERP/MES systems. - Persistent interface call timeouts: Caused by not setting a reasonable timeout period, or initiating too many concurrent interface requests exceeding the load limit of the external system.
How to Verify Proper Configuration
- Send a single-vehicle API request and check if the returned
responseDataincludes core business fields such as VIN and tightening torque. - Call the batch interface and verify that the number of returned results matches the number of VIN lists in the request.
- Simulate a temporary network interruption and verify that the interface automatically retries requests according to the configured retry count.
- Verify that the interface returns correct permission error messages after the
Authorizationtoken expires.
The values provided here are common starting points and should be evaluated against samples relevant to the deployment environment.