Detection & Interaction

Detection & Interaction

User detection and interaction are two state machines which allow us to monitor when temi has detected a person and when a user is interacting with temi.

To make use of these state machines temi has to have the Detection Mode turned on, see integration instructions below. In Detection mode temi will:

• Constantly look for users
• Distance 0.8 meter in frame of RGB camera
• If there is more than 1 user - pick the closest one and the most center one

temi will start the Detection mode session if Launcher in a state without user interaction and movement, and your skill can listen for the events from that via this feature and according it to do what you want temi to do.

For more information on the detection and interaction state machines see below the Listeners section.

Note: There's a Welcoming Mode app already developed that would satisfy most B2B needs, and can provide a good reference for anyone who like to develop an app using the welcoming abilities.

API Overview

Return	Method	Description
void	setDetectionModeOn(boolean on)	Turn on(off) detection mode
void	setDetectionModeOn(boolean on, float distance)	Turn on detection mode with the maximum dection distance

Interface	Description
OnDetectionStateChangedListener	Detection mode state changed listener
OnUserInteractionChangedListener	User interaction state changed listener
OnDetectionDataChangedListener	Detection mode data changed listener

Model	Description
DetectionData	Detection data in detection mode

Integration

To configure the skill can use Detection mode you must take the following steps:

1. The skill should be a Kiosk Mode skill first. Please learn how to configure skill into a Kiosk Mode from here.

2. Return temi and go to Settings > General Settings > Turn on the Tracking User.

3. Return to home page.

4. Compile and run your skill.

Methods

setDetectionModeOn()

Use this method to turn on (off) the detection mode. If use this method to turn on the detection mode, the maximum detection distance would be the default( 0.8 meters).

• Parameters

  Parameter	Type	Description
  on	boolean	true(false) to turn on(off) the detection mode

• Prototype

  void setDectionModeOn(boolean on);

• Required permissions

  Selected Kiosk, Settings

• Support from

  0.10.70

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setDetectionModeOn()

Use this method to turn on(off) the detection mode. If you use this method to turn on the detection mode, you can set its maximum detection distance at the same time.

• Parameters

  Parameter	Type	Description
  on	boolean	true(false) to turn on(off) the detection mode
  distance	float	The maximum distance that the detection mode can detect (only works when on is true). 0.5 - 2.0 are valid.

• Prototype

  void setDectionModeOn(boolean on, float distance);

• Required permissions

  Selected Kiosk, Settings

• Support from

  0.10.70

Interfaces

OnDetectionStateChangedListener

Set your context to implement this listener and add the override method to get the latest state regarding the user detection.

Prototype

package com.robotemi.sdk.listeners;

interface OnDetectionStateChangedListener {}

Static constants

Constant	Type	Value	Description
DETECTED	int	2	When a human body is detected
LOST	int	1	Target detected lost
IDLE	int	0	No active detection occurring and/or 10 seconds have passed since last detection was lost

Abstract methods

• Parameters

  Parameter	Type	Description
  state	int	Detection mode state, possible states are DETECTED, LOST, IDLE

• Prototype

  abstract void onDetectionStateChanged(int state);

Method for adding listener

• Parameters

  Parameter	Type	Description
  listener	OnDetectionStateChangedListener	An instance of a class that implements this interface

• Prototype

  void addOnDetectionStateChangedListener(OnDetectionStateChangedListener listener)

Method for removing listener

• Parameters

  Parameter	Type	Description
  listener	OnDetectionStateChangedListener	An instance of a class that implements this interface

• Prototype

  void removeOnDetectionStateChangedListener(OnDetectionStateChangedListener listener)

Support from

0.10.53

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OnUserInteractionChangedListener

Set your context to implement this listener and add the override method to get the latest state regarding the user interaction. isInteracting will be returned true if the user is interacting otherwise it will be false. The interaction state machine will become active if one of the following condition is met:

• User is detected
• User is interacting with temi by touch or voice, or is in telepresence
• temi is in motion

Prototype

package com.robotemi.sdk.listeners;

interface OnUserInteractionChangedListener {}

Abstract methods

• Parameters

  Parameter	Type	Description
  isInteracting	boolean	true(false) means that user is(is not) interacting

• Prototype

  abstract void onUserInteraction(boolean isInteracting);

Method for adding listener

• Parameters

  Parameter	Type	Description
  listener	OnUserInteractionChangedListener	An instance of a class that implements this interface

• Prototype

  void addOnUserInteractionChangedListener(OnUserInteractionChangedListener listener)

Method for removing listener

• Parameters

  Parameter	Type	Description
  listener	OnUserInteractionChangedListener	An instance of a class that implements this interface

• Prototype

  void removeOnUserInteractionChangedListener(OnUserInteractionChangedListener listener)

Support from

0.10.53

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OnDetectionDataChangedListener

After the detection mode is turned on, data related to detection mode can be received in its subclass.

Prototype

package com.robotemi.sdk.listeners;

interface OnDetectionDataChangedListener {}

Abstract methods

• Parameters

  Parameter	Type	Description
  detectionData	DetectionData	Detected data

• Prototype

  abstract void onDetectionDataChanged(DetectionData detectionData);

Method for adding listener

• Parameters

  Parameter	Type	Description
  listener	OnDetectionDataChangedListener	An instance of a class that implements this interface

• Prototype

  void addOnDetectionDataChangedListener(OnDetectionDataChangedListener listener)

Method for removing listener

• Parameters

  Parameter	Type	Description
  listener	OnDetectionDataChangedListener	An instance of a class that implements this interface

• Prototype

  void removeOnDetectionDataChangedListener(OnDetectionDataChangedListener listener)

Support from

0.10.70

Models

Below are the list of models used in the utils methods.

DetectionData

Used for holding the data related detection mode.

Prototype

package com.robotemi.sdk.model;

class DetectionData {}

Attributes

Attribute	Type	Description
angle	double	-
distance	double	The distance from temi to the detected user
isDetected	boolean	true(false) means temi did(did not) detect someone