What the data for this category looks like
Commercial vehicle revenue yield-related data is primarily sourced from on-board OBD terminals, fleet management systems, energy refueling platforms, and maintenance service providers. Core daily aggregated revenue summary data updates the previous day’s operational data every early morning. Real-time operational status data is pushed every 15 minutes, and is only used to assist with same-day revenue yield calculations. Data is packaged in standard JSON format, with fields including vehicle_vin (unique commercial vehicle identification code), daily_revenue, daily_operating_cost, total_mileage, and operating_duration. Monetary fields use yuan as their unit, mileage fields use kilometers, and duration fields use hours. Some data sources support returning aggregated data grouped by fleet or route.
What constraints these characteristics impose on HTTP Interfaces and External Systems
Daily aggregated data has a large volume and supports batch queries. Connected HTTP interfaces must support pagination or batch pull parameters to avoid triggering current limiting or timeouts when too much data is returned in a single request. The data fields include the unique vehicle_vin identifier. External systems must use this field as the unique identifier when storing and associating data, to avoid mixing data from different vehicles. Monetary, mileage, and duration fields carry fixed units. Interfaces must clearly mark units when returning data or use preset fixed units, to reduce unit conversion costs for external systems. Real-time and daily data update frequencies differ. Two separate interface types must be configured, to avoid abnormal data acquisition caused by incorrect request types.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
auth_type | header | Matches the authentication specifications of most commercial vehicle fleet management systems, supports passing custom authentication headers |
request_timeout | 30 seconds | Commercial vehicle data source interface responses typically fall within the 10-25 second range; 30 seconds covers most normal requests and avoids timeout interruptions |
batch_fetch_size | 50 items/request | Pulling 50 daily update records per request balances interface load and transmission efficiency, avoiding triggering current limiting due to overly large single data requests |
field_mapping_strategy | Exact Match | Commercial vehicle revenue yield data field naming follows fixed specifications; exact matching avoids field mapping errors |
unit_verification | Enabled | Verifies that the units of returned fields match preset rules, preventing calculation deviations in external systems caused by unit mismatches |
max_retries | 2 times | Addresses occasional network fluctuations in commercial vehicle data sources; 2 retries reduces the rate of interface call failures |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by data format, data volume, and business rules. Specific issues require specific analysis, and it is recommended to test on your own samples before finalizing settings.
Three common configuration errors
- An interface call returns the error
Key is error. You need to use the app key rather than the account key. The authentication key is not configured correctly: a global account key was used instead of the application-level key corresponding to the commercial vehicle data source. - An interface call returns the
413 Request Entity Too Largestatus code. The volume of daily update data pulled in a single request exceeds the current limiting threshold of the data source interface, and a reasonable batch pull parameter was not set. - Commercial vehicle revenue yield data fields displayed in the connected system are empty. The correct field mapping rules were not configured: the
daily_revenuefield returned by the data source was not mapped to the target field preset in the system.
How to confirm the configuration is complete
- Call the test interface, check that the response header includes the configured custom authentication identifier, confirming that the authentication parameters are effective.
- Pull the daily revenue yield data for a single commercial vehicle, verify that the returned fields fully match the preset mapping rules.
- Simulate a batch pull request, confirm that the volume of data returned by the interface matches the configured batch pull size.
- Check the system operation logs, confirm there are no error records such as authentication failures, timeouts, or field parsing exceptions.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.