User Guide

54A0049_7.0_EN / Leddar Pixell – User Guide 35 | 127
4.4. Sensor Alert System
4.4.1. Overview
The Leddar Pixell uses an alert system to notify you of potential problems and misuse of the sensor, along
with other information about its status.
The alert system is accessible through both the Leddar Configurator software and the communication
protocol.
An alert is defined by:
• an alert type
• an alert level
• a unique identifier code
There are three (3) alert levels:
Notify: This is generic system information that can be useful to you but is not problematic regarding
operations or performance. No action is required from you.
Warning: The sensor is in a problematic condition that requires your attention and might require action. The
sensor operation will continue, but performance might be degraded depending on the warning code. See
Table 8 below.
Critical: The sensor has suffered a critical error and might have stopped operating altogether to protect itself
or its surroundings (Fig. 26 on page 38). Any measurement output from the sensor in this state should not
be trusted. Your immediate attention is required.
4.4.2. Alert Type List
The current alert list is minimal and is mainly used for reporting the sensor’s operating state.
Table 8: Detection structure (sends echoes)
Alert Type
Type ID
Alert Level
Description
ALERT_LCA_INIT
0x00
Notify
The sensor has not finished initialization after
powering up. This notification disappears after a
few seconds.
ALERT_LCA_CONFIG
0x02
Notify
The sensor is currently in Self-configuration mode
and has paused its measurement process. This
notification disappears after a few seconds.
ALERT_LCA_ERROR
0x06
Warning
The sensor is currently in Safe mode following an
error in the measurement process.
The unit needs to be power cycled to
recover from Safe mode. See section 4.5
on page 37 for more details.