Inxpect LBK System User Manual

4. Functioning principles
Contents
This section includes the following topics:
4.1 Sensor functioning principles 18
4.2 Safety functions 18
4.3 Access detection function 19
4.4 Restart prevention function 19
4.5 Muting 21
4.6 Anti-tampering function 22
4.7 Anti-masking function 23
4.1 Sensor functioning principles
4.1.1 Introduction
The LBK-S01 sensor is an FMCW (Frequency Modulated Continuous Wave) radar device based on a
proprietary detection algorithm. The sensor sends impulses and obtains information, analyzing the
reflection of the objects that it encounters.
4.1.2 Factors that influence the reflected signal
The signal reflected by the object depends on several characteristics of the same object:
l material: metallic objects have a very high reflection coefficient, while paper and plastic reflect only a
small portion of the signal.
l surface exposed to the sensor: the greater the surface exposed to the radar, the greater the reflected
signal.
l position with respect to the sensor: objects positioned perfectly in front of the radar generate a greater
signal with respect to side objects.
l motion speed: the faster the motion of the object, the greater the reflected signal
4.1.3 Signaled and missed objects
Many objects inside of an industrial environment reflect the radar signal. The signal analysis algorithm takes
into consideration only those objects that move within the field of vision, ignoring completely static objects.
Furthermore, a falling objects filtering algorithm allows ignoring false alarms generated by work waste
products that fall within the field of vision of the sensor.
4.2 Safety functions
4.2.1 Default operation
In LBK System‘s default operation all sensors perform both safety functions:
l the sensor performs the access detection function ("Access detection function" on the next page)
when it is in normal operation (status No alarm)
l the sensor performs the restart prevention function ("Restart prevention function" on the next page)
when in alarm state for access detection (status Alarm)
4.2.2 Selectable safety functions
In the manual system configuration via the Inxpect Safety application, you can select which safety functions
each sensor performs:
l Both (default)
l Always access detection: even when the system is in Alarm status, the sensor has the field of vision
and the sensitivity of the No alarm status.
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LBK System| Instruction manual v1.3 SEP 2019 |LBK-System_instructions_en v1.3|© 2018-2019 Inxpect SpA

Inxpect LBK System Specifications

General

Brand	Inxpect
Model	LBK System
Category	Safety Equipment
Language	English