Dialogue Task

Topic: /dialogue/task
Usage:
Via this topic the dialog system issues tasks to different agents.

Message definition:

{
  "target_id": String,
  "source_id": String,
  "timestamp": Long,
  "task_id": String,
  "priority": int,
  "type": String,
  "parameter": {
    <data>
  }
}

Key	Description
task_id	Unique task id, will be used in status messages related to a task.
priority	Task priority, can range from 1 to 5. 1 is the highest priority.
type	Task type, current valid values are bring, memorize.
parameter	Parameters needed by the robot to fulfill the task. The exact parameters needed is described in the following.

Parameters for Types

bring

The type bring issues a bring command to the robot. It will fetch a object from a location and deliver it to another location. If no fetch location is specified, it will search the knowledge base for locations. If no target location is specified, it will deliver it to the origin when the command was issued.

Needed parameters are:

{
  "object": String,
  "from" : String,
  "to": String
}

Key	Description
object	Object which should be fetched.
from	Location the object should be fetched from.
to	Location the object should be brought to.

memorize

When receiving a memorize task, the robot starts to memorize the object locations in the users flat. This task does not need any additional information meaning the parameters must be left empty.

Example

Example task message of type bring:

{
  "target_id": "R_1",
  "source_id": "SI_1",
  "timestamp": 1552481472,
  "task_id": "Task1236861",
  "priority": 2,
  "type": "bring",
  "parameter": {
    "object": "Apple",
    "from": "Dinning-Table",
    "to": "Sofa"
  }
}

Other task messages look similar, only the type and parameter field are filled accordingly.