What This Category’s Data Looks Like
Business data sources for plastic injection molding scenarios include resin batch property sheets, injection molding machine operating parameters, mold temperature controller data, MES system records, and dimensional and appearance inspection results. Daily business documents include injection molding process cards, raw material drying records, mold history logs, first-piece inspection reports, inspection checklists, and material change and machine cleaning records.
Data is updated per production batch, each mold or material change, and each shift inspection. Fields include raw material moisture content, injection pressure, mold temperature, mold cycle count, material change time, and others. Units include degrees Celsius, megapascals, hours, and other relevant units.
What Constraints These Characteristics Impose on Multi-turn Dialogue and Prompt Engineering
Because data is updated frequently and tied to a single production batch, dialogue context must be limited to the business scope of the current batch to avoid loading expired historical data. Business documents with dense professional terminology require prompts to explicitly specify reading specific fields, such as raw material drying temperature and holding pressure window parameters.
Multi-turn dialogue must gradually ask about equipment operating parameters and inspection records to narrow down the scope of fault troubleshooting, while also associating the unique batch identifier of the current production to avoid mixing data across batches.
The following configurations are based on FastGPT v4.17.0:
How to Configure the Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
| Maximum context length | 800–1200 characters | Adapt to short-cycle updated business data in injection molding scenarios, avoid loading expired historical dialogues and documents |
| Question optimization | Enabled, calibrated via actual testing | Adapt to injection molding professional terminology, improve matching accuracy of professional phrasing in user questions |
| Single search limit | Top 3 results | Match the number of documents for single-batch inspection checklists and process cards, avoid redundant recall of irrelevant data |
| Variable binding | Bind the variables field | Associate exclusive business parameters such as current production raw material batch and mold number |
| Session ID association | Bind chatId | Retain complete dialogue context for single-batch production, avoid mixing data across batches |
Three Common Misconfigurations
- Dialogue records disappear after refreshing the conversation page, and a new conversation is displayed. The cause is that the
chatIdparameter is not bound, and the unique production batch identifier is not associated. Each page refresh generates a new session. - The AI prompt cannot read document interpretation content from the system prompt. The cause is that business documents such as injection molding process cards and raw material drying records are not correctly configured in the knowledge base association items, resulting in the retrieval scope not covering the specified documents.
- The knowledge base cannot be selected in real time during dialogue. The cause is that the rule for dynamically switching the knowledge base based on mold change or material change events is not configured, so the exclusive knowledge base content of the current production batch cannot be associated.
How to Verify Successful Configuration
- Initiate an inquiry about injection molding equipment inspection for the current production batch, verify that the dialogue context retains the previous 3 inspection records and process parameters.
- Upload the raw material drying record for the current batch, ask whether the raw material moisture content meets requirements, verify that the AI can correctly read the document content.
- Refresh the conversation page, verify that the dialogue records of the current session are not lost, and still associate the parameters of the current production batch.
- Initiate a real-time knowledge base selection request, verify that it can switch to the mold history knowledge base after the current mold change.
The values provided are common starting points and should be measured against the reader's own samples.