What the data for this category looks like
Data sources include raw material batch ledgers, workshop MES systems, slurry and coating testing equipment, workshop dew point monitoring devices, formation and grading cabinets, and laboratory testing equipment. Data is updated in real time per battery batch and individual battery. Some process parameters such as formation and grading curves are updated per production cycle.
Associated documents include batching records, coating and calendering parameter ledgers, winding/stacking process records, liquid injection operation logs, formation and grading historical data, and OCV and safety test reports. Fields cover process parameters, equipment operating status, test results, and more, all bound to the unique identifier of the corresponding production batch.
What constraints these characteristics impose on the HTTP Interfaces and External Systems link
Since data is updated in real time per production batch and individual battery, interfaces must support retrieving corresponding parameters by batch ID or battery unique identifier. Since there are many associated documents bound to production batches, requests must carry batch-level context parameters to match business scenarios. Since electrochemical systems have strict requirements for parameter accuracy, interfaces must verify the format and unit consistency of request fields. Since equipment failures may pose safety risks, interfaces must be configured with failure retry and callback mechanisms, while retaining complete request and response logs for troubleshooting.
How to set configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
Authorization | Bearer {user's own OneAPI key} | Complies with HTTP interface authentication standards, avoids plaintext transmission of keys, and adapts to FastGPT v4.17.0 interface configuration rules |
| Context window length | 8000–12000 characters | Equipment inspection and maintenance Q&A for lithium-ion cell manufacturing needs to cover multi-process parameters. A longer context can fully carry batch-related data |
variables | {"batch_id": "", "device_sn": ""} | Used to pass production batch and device serial numbers, accurately match inspection and maintenance documents for corresponding processes |
| Retry count | 2–3 times | Addresses network jitter or temporary device response delays, prevents business interruptions caused by single request failure |
responseData | Only return inspection records, device fault codes, and maintenance manual snippets | Reduces response content to lower transmission overhead, adapting to low-bandwidth workshop network environments |
| Timeout period | 30 seconds | Parameter queries for processes such as formation and grading need to wait for device data returns. The duration must match the actual response rhythm of the process |
Three Common Misconfigurations
- Symptom: A 401 Unauthorized error is returned when calling the OneAPI, or the request token
fastgptis displayed in OneAPI logs. Cause: The placeholder key in theAuthorizationheader was not replaced correctly, and the default test token was used directly, resulting in authentication failure. - Symptom: The parameters returned by the interface do not match the actual production data, or documents for the corresponding batch cannot be retrieved. Cause: Correct production batch ID or device serial number was not passed in
variables, causing the system to match incorrect context data. - Symptom: Interface requests time out, or no results are returned for formation and grading parameter queries. Cause: The timeout period was not adjusted according to the process, and a universal timeout setting was used, making it impossible to wait for the device to return complete data.
How to Confirm the Configuration Is Complete
- Manually call the configured HTTP interface, check whether the
Authorizationheader carries correct authentication information, and confirm that the token displayed in OneAPI logs matches the interface's configured key. - Pass a known production batch ID and device serial number, check whether
responseDatareturns inspection and maintenance related content for the corresponding process. - Simulate network jitter to trigger the retry mechanism, confirm that the interface can return normal results after retries.
- Adjust the timeout period, verify that requests under different processes can complete responses within a reasonable duration.
The values provided are common starting points and should be measured against the reader's own samples.