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Laser Scanners
RF627, RF627Smart [Revision 2.1.2] 20.09.2021
20.1. Time cycle
Image capture, processing (profile extraction) and result transfer are performed in a
pipeline mode. The pipeline mode is illustrated by the following diagram:
Description:
Т
Frame (profile) period.
FPS
Frame (profile) rate.
N-1, N...
Frame (profile) numbers.
Event
Event that triggers the measurement cycle of obtaining a single frame (profile).
Exposure time
Exposure time of the image sensor.
Laser ON time
Time during which the laser is turned on.
Profile extraction and
transfer
Time required to extract the profile and start its transfer.
To facilitate understanding of the synchronization of measurements, the concept of
"synchronization event" is used. The synchronization event indicates the occurrence of a
condition (internal or external signals at the inputs, or combinations thereof) under which the
scanner starts the next cycle of exposure, calculation, data transfer.
The measuring cycle (start of measurement to take one profile) always begins with
an event. Upon the occurrence of the event, the electronic shutter is opened and the laser is
turned on, i.e. the CMOS sensor is exposed. After that, the frame is read and the profile is
calculated, after which the profile is transmitted as a UDP packet. Simultaneously with the
frame reading, the next frame is exposed (if the synchronization event has occurred).
