Example: A crane detecting conditions - Amazon IoT Events
Background story
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Example: A crane detecting conditions

Background story

An operator of many cranes wants to detect when the machines need maintenance or replacement and trigger appropriate notifications. Each crane has a motor. A motor emits messages (inputs) with information about pressure and temperature. The operator wants two levels of event detectors:

  • A crane-level event detector

  • A motor-level event detector

Using messages from the motors (that contain metadata with both the craneId and the motorid), the operator can execute both levels of event detectors using appropriate routing. When event conditions are met, notifications should be sent to appropriate Amazon SNS topics. The operator can configure the detector models so that duplicate notifications are not raised.

This example demonstrates the following functional capabilities:

  • Create, Read, Update, Delete (CRUD) of inputs.

  • Create, Read, Update, Delete (CRUD) of event detector models and different versions of event detectors.

  • Routing one input to multiple event detectors.

  • Ingestion of inputs into a detector model.

  • Evaluation of trigger conditions and lifecycle events.

  • Ability to refer to state variables in conditions and set their values depending on conditions.

  • Runtime orchestration with definition, state, trigger evaluator, and actions executor.

  • Execution of actions in ActionsExecutor with an SNS target.