NXP Semiconductors
MCU-SMHMI-UG
Smart HMI User Guide
Note:
Only one floor can be selected at a time.
Once the selected floor has been reached, you may select a new floor to travel to.
Additionally, after a ~15 second wait time of no activity (voice commands recognized,
touch screen events, etc.), the demo effectively restarts, and the elevator floor number is
reset back to one. Voice recognition is disabled until the wake word is spoken again, and
the face recognition process begins looking for a face again.
Here, if your floor selection was saved on the previous iteration, your face can now be
recognized.
Once the selected floor is reached, the screen displays "You Have Arrived" in green
color.
Figure 36. Screen displaying "You Have Arrived"
The kit then reenables the standby screen waiting once again for user interaction to
reawaken the kit.
5.3.2.3 Saving floor selection
Users can associate their preferred floor and language settings with their face for the
application to reuse their preferences when the camera next recognizes them.
If the recognition status icon is colored red
and a floor is selected, the application
plays a brief animation which simulates the elevator being in transit as described in the
previous section. Afterwards, an onscreen prompt accompanied by some audio asks if
you would like to save the floor selection.
5
The red color indicates that an unknown face has been detected.
MCU-SMHMI-UG
All information provided in this document is subject to legal disclaimers.
© 2022 NXP B.V. All rights reserved.
User guide
Rev. 0 — 29 September 2022
34 / 51
