Gotop GT-1612-MTBD, Руководство пользователя

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GT-1612-MTBD
GPS&Beidou Receiver Module
www.gotop-zzu.com Page 15 of 35 Revision: V2.0.1-January 2015
Figure 8:
Periodic Mode
2.4.5. AlwaysLocateTM Mode
lwaysLocate ™ is an intelligent power saving mode. It contains AlwaysLocate ™ backup mode and AlwaysLocate ™
standby mode.
AlwaysLocate ™ standby mode allows the module to switch automatically between full on mode and standby
mode. According to the environmental and motion conditions, the module can adaptively adjust the full on time and
standby time to achieve a balance between positioning accuracy and power consumption. Sending
“
$PMTK225,8*23
”
and the module returning:
“
$PMTK001,225,3*35
”
means the module accesses AlwaysLocate ™ standby mode
successfully. It will benefit power saving in this mode. Sending
“
$PMTK225,0*2B
”
in any time will make the
module back to full on mode.
AlwaysLocate ™ backup mode is similar to AlwaysLocate ™ standby mode. The difference is that AlwaysLocate ™
backup mode can switch between full on mode and backup mode automatically. The PMTK command to enter into
AlwaysLocate
™ backup mode is “$PMTK225,9*22”.The module can exit from AlwaysLocate ™ backup mode by
command “$PMTK225,0*2B” sent just after the module has been waked up from previous backup cycle.
The positioning accuracy in AlwaysLocate ™ mode will be somewhat degraded, especially in high speed. The
following picture shows the rough power consumption of GT-1612-MTBD module in different daily scenes when
AlwaysLocate
™
mode is enabled.
Figure 9:
AlwaysLocate ™ Mode