Sealog is a general purpose event logging framework built to support research vessels and deployed underwater vehicles.

Sealog is a general purpose event logging framework built to support research vessels and deployed underwater vehicles. It provides vessel/vehicle operators with an event-logging solution that can be customized to support the operator’s unique needs and provide a science party with a tool that allows them to design and enforce standardized documenting procedures and vocabularies.

Architecture

Sealog uses a traditional server/client architecture with the server’s functionality remaining small and concise. The sealog-server just an API that clients, scripts and application leverage to submit and retrieve event data. Data can be submitted/retrieved via RESTful API calls or accessed asynchronously via websockets pub/sub channels.

Short-list of features

  • 100% of functionality accessable via RESTful API, completely indenpendent of any graphical/CLI front-end.
  • Ad-hoc association of ancilary data with events such as sensor data, navigation, etc.
  • Ability to filter events based on user, value, keywords and time spans
  • Ability to subscribe to the live eventlog feed (using websockets).
  • Simple exporting of all or a filtered list of events merged with ancilary data is JSON or CSV format
  • Defining event templates for quick event submission
  • role-based authentication using Java Web Tokens (JWT)

Software Requirements

The Sealog server and clients have been tested against Ubuntu 20.04/22.04/24.04 and RHEL 9. The clients are based on the React NodeJS framework and are compatible with most modern browsers.

The project code repositories are at:

The server and clients are made available under the MIT Open Source License.

Sealog is a part of OceanDataTools.org.