User's Guide

Abeeway Tracker Reference Guide FW 2.1 V1.1
Page 11 of 23 10
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November 2020
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4.2.1 Overview
The tracker supports up to six different operational modes: Off, Standby, Motion tracking, Permanent tracking,
Start/End tracking and Activity tracking.
The mode is configurable using configurations parameters
4.2.2 OFF mode
The tracker is in deep low power mode. No LoRaWAN™ uplinks are sent.
A long button press is required to wake up the device. There are three different ways to enter this mode:
➢ User action (long button press, if the device is allowed for by setting bit 1 and clearing bit 15 of the
config_flags parameter, and if the tracker is not in SOS mode).
➢ Low battery level.
➢ LoRaWAN™ downlink request.
In each case, a shutdown message is sent via LoRaWAN™ uplink, with the cause. See section Shutdown message
for more details.
4.2.3 Standby mode
The tracker sends periodically short LoRaWAN™ messages, called heartbeat, at the configured frequency
(lora_period). The device positions can be obtained in this mode by using the side operations features (see the side
operations section).
4.2.4 Motion tracking mode
The tracker provides positions at the ul_period frequency only when the device is moving. The positions are given
by the geolocation strategy defined by geoloc_sensor parameter.
When the device is not moving, the position message is replaced by the heartbeat message transmitted at the
lora_period frequency.
The end of motion is detected when the device has not moved during a motion_duration delay.
4.2.5 Permanent tracking mode
The device reports its positions at the ul_period frequency regardless of the motion. It uses the geoloc_sensor
parameter for the geolocation technology.
Heartbeat messages are sent if there are no uplink messages during lora_period seconds.
4.2.6 Motion Start/End tracking mode
This mode is used when only the beginning and the end of a motion is the point of the interest. The tracker provides
its position when it starts and stops moving. The technology used is defined by the geoloc_sensor parameter.
In this mode, (motion_nb_pos+1) positions messages (due to a start or an end) are reported and are spaced in time
by the parameter ul_period.
The end of the motion is detected when there is no movement during motion_duration seconds.
Heartbeat messages are sent if there are no uplink message during lora_period seconds.
4.2.7 Activity mode
This mode sends an activity reports instead of positions by counting the amount of motions with the accelerometer
Each motion detection increases a counter (if 3 motion events are detected during a 2 seconds period interval) and
the counter value is reported at the ul_period frequency.