CHEP ULTRA SHORT, Руководство пользователя

Страница: 5 / 8

CHEP Pallet Tracker comes with technology specific
global SIM card pre-installed. This SIM card works in
designated countries on CatM or NB network while for
other countries with no coverage for CatM or NB, it falls
back to GSM coverage. Device can also communicate
on Wifi provided the credentials for access are sent to
device thru profile configuration.
User can not originate the connection to CHEP Pallet
tracker unless device wakes-up and contacts the cloud
application over Wifi or Cellular. When tracker is not
connected to network, it continues to store the data off-
line into it’s memory. Onboard memory on device can
store the data worth 6months of sensor logs.
CHEP pallet tracker acquires location using Cellular, Wifi and
GPS. Logic is built into the device to attempt Wifi first,
followed by Cellular and only if both
don’t result into any
valid data, GPS is attempted. This logic is implemented to
save power as GPS attempt is most power consuming.
Wifi & Cell tower triangulation technology calculates the
location of the device based on the location of the nearby
cell towers or Wifi hotspots. These are not very accurate,
an approximate horizontal positioning error for each type is
showsn in the picture here. GPS is the most accurate but
takes time and higher power to get a location fix.