The Kpler feed type in ArcGIS Velocity connects to Kpler to ingest automatic identification system (AIS) data, providing real-time visibility into global maritime vessel movements.
Examples
以下是源的使用示例：
- A maritime logistics company uses the Kpler feed to monitor real‑time vessel movements, identify expected arrivals, berthing delays, and deviations from scheduled routes.
- A national government agency uses the Kpler feed for vessel tracking congestion monitoring and to assess maritime traffic density and high-risk congestion zones for safety and compliance.
Usage notes
使用源时，请谨记以下内容：
- The feed uses port 9196; you will need to have this port opened in your firewall to use the Kpler feed.
- You can create consumer groups by using your provided consumer group prefix and appending a unique suffix. For example, if your prefix is cityname-group, the new consumer group IDs include cityname-group-example1 or cityname-group-example2.
- Velocity automatically handles the data schema. Adding fields is not supported because the schema is predetermined and based on the data provided by Kpler.
- Velocity automatically handles the Date and time and Track ID parameters for the feed.
- The data provided by Kpler is in the JSON data format, so the Location parameter is handled automatically when identifying key fields.
Parameters
以下是源的参数：
| Parameter | Description | Data type |
|---|---|---|
| Kpler Username （必填） | The username associated with your Kpler account. | 字符串 |
| Kpler Password （必填） | The password associated with your Kpler account. | 字符串 |
| Kpler Topic （必填） | The Kpler topic provided by Kpler to which the Kpler feed subscribes for messages. | 字符串 |
| Kpler Consumer Group ID （必填） | The consumer group ID provided by Kpler for data streaming. | 字符串 |
Consideration and limitation
使用源时，请考虑以下事项：
Each consumer group can have only one active feed. You can create multiple feeds using the same consumer group, but only one of those feeds can be actively ingesting data.