White Papers

9 Human Presence Detection & Management
Wake on Approach (Near) Details
Wake on Approach (WOA) is implemented in such a way that it will only wake the system
when the system has a sufficient battery level.
In order to provide the fastest response time, any new movement in front of the proximity
sensor will initiate a wake from modern standby sleep state. This may introduce false
wake events in a busy work environment or even possibly trigger detection when pets
are around.
Walk Away Lock (Away) Details
Walk away lock optimizations are vital to ensure that the user is no longer engaged with
the system. The walk away lock logic leverages not only user detection, but also user
system interaction to ensure that no usage is present.
The following are some system characteristics which will impact the logic to enable walk
away lock:
• User interaction (mouse, keyboard, etc.): if the user is not detected but providing
user input, the application logic will halt walk away lock and system interaction
functions.
• Application usage (Microsoft PowerPoint ™, etc.): if the user is detected in a
presentation environment, the application logic will halt away lock and system
interaction functions.
• Video playback: if a video is detected as being played and the user is not detected,
the application will not initiate walk away logic assuming that the user is beyond the
current field of view
• External Monitor detection: if an external monitor is detected, the application will
allow the user to disable the Walk away Lock functionality. This will allow the user to
configure thier laptop in a customized manner and not mandate the laptop to be
oriented directly to the user.
Frequently Asked Questions
1. Will Dell ExpressSign-in log me in to Windows using Hello as part of WOA when
I am determined to be present?
a. No. Dell ExpressSign-in will bring the system out of modern standby and
bring up the Win Hello login screen.
2. How long will it be from the time I walk away before Dell ExpressSign-in locks
the computer as part of WAL?
a. This is customizable, defaulted at 30 seconds currently.