What the Data for This Category Looks Like
Business data for telecommunications engineering construction comes primarily from project submission documents, construction drawing descriptions, material lists, acceptance reports, project presentation PPTs, and similar materials. Data update frequency changes with project phases. Submission forms and budget documents are updated during the submission phase. Construction logs and material requisition records are updated during the construction phase. Acceptance documents are updated during the acceptance phase. Documents include fixed-format multi-row tables, long text paragraphs, and annotated PDF drawings. Fields include project number, material model, construction unit, acceptance date, and similar items. Units include meters, square meters, kilograms, work days, and similar units.
What Constraints Do These Characteristics Impose on the Document Parsing and Chunking Link
Document characteristics of telecommunications engineering construction impose multiple constraints on the parsing and chunking link. Large structured multi-row tables in material lists require retaining cell row-column hierarchy and field associations during chunking. Without this, precise matching for business process guidance cannot be supported. Non-standard encoded engineering terms and annotations mixed into PDF and PPT documents easily trigger parsing errors. Single documents have wide length ranges, from a few pages of submission forms to dozens of pages of construction plans. Chunking thresholds must adapt to different document lengths. Strong business fields such as associated project numbers and material models require retaining contextual associations during chunking. This prevents loss of business logic after splitting.
How to Configure Settings
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Adapts to contextual association needs for long paragraph construction descriptions and structured tables in telecommunications engineering construction documents, and avoids loss of business logic after splitting |
chunkSplitter | Paragraph + fixed character boundary | Adapts to document structures with both long text descriptions and multi-row tables. Prioritizes splitting by natural paragraphs, and uses character boundaries to complete chunks when needed |
customPdfParse | Enable automatic encoding detection | Resolves parsing errors caused by non-standard encoded text mixed into PDF documents, and adapts to multi-encoding mixed content in engineering documents |
PARSE_FILE_TIMEOUT_SECONDS | 300–600 seconds | Adapts to parsing time requirements for large construction plan PDFs and multi-sheet XLSX files, and avoids parsing interruptions due to timeout |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Adapts to upload requirements for single large project archive documents, and avoids parsing failures due to oversized files |
chunkSettingMode | Manual configuration | Adapts to differentiated chunking needs for different types of engineering documents, and avoids situations where general configurations cannot match splitting requirements for structured data |
Three Common Misconfigurations
- An error "the argument ‘windows-1252’ is invalid encoding" appears when uploading PPT or PDF documents. This occurs when automatic encoding detection is not enabled, and default encoding is used to parse non-standard encoded text mixed into engineering documents.
- Knowledge base chunking results fail to associate with specific source documents. This occurs when chunking configurations do not retain document metadata, and the binding relationship between document identifiers and chunks is lost during splitting.
- Field confusion appears in chunking results after uploading a multi-sheet XLSX material list. This occurs when chunking rules are not configured for structured tables, and splitting only uses fixed character boundaries without retaining table row-column hierarchy associations.
How to Verify Successful Configuration
- A typical telecommunications engineering construction plan PDF is uploaded, and parsed text is checked to confirm retention of paragraph structure and table content.
- A multi-sheet XLSX material list is uploaded, and chunking results are verified to confirm retention of cell row-column correspondence.
- A question-and-answer test is triggered, and returned results are checked to confirm association with corresponding source document information.
- A single large archive document meeting the maximum upload limit is uploaded, and the parsing process is checked to confirm absence of timeout interruptions.
The values given here are common starting points, and should be evaluated against the reader's own samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.