Zebra MC55A0 Betriebsanweisung Seite 55

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Operation 2 - 23
Interactive Sensor Technology
The Interactive Sensor Technology (IST) supports the following features:
Power Management – manages power by configuring IST to control switching on/off the backlight,
control suspend mode of the MC55 by monitoring motion and orientation.
Display Orientation – switches the screen orientation to either landscape or portrait depending on the
MC55 orientation.
Free Fall Detection – monitors free fall duration and records the time and type of the drop event.
Power Management
The MC55 orientation and motion sensitive data can be used as an indicator of MC55 usage and can be used
to manage the battery power of the mobile computer. For example, IST can be configured to control the
backlight on and off functionality or go into suspend according to a user gesture by placing screen facing down.
It can also be used to keep the MC55 active while it is in movement to prevent it from quickly going into
suspend mode while in use.
Display Orientation
The screen can be rotated between portrait and landscape modes automatically, depending on the physical
orientation of the MC55. For example, if the MC55 is rotated 90° counterclockwise, IST rotates the display
counterclockwise 90° so that the screen display appears correct.
This functionality is achieved by monitoring screen angle and rotating the display to counter any changes. IST
only rotates the screen in multiples of 90°.
Free Fall Detection
IST continuously monitors gravitational force on the MC55 according to its current position. When the MC55
free falls, IST detects the absence of gravitational force and records the event data if it detects a free fall more
than 450 ms, which may indicates nearly a one meter drop. This data can be used as an indicator of potential
abuse or misuse.
IST features a log for recording the free fall events. This log records the date, time and the time period of the
free fall.
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