Page 38 - Signalite2023 ENG

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2.5.D. PEDESTRIAN ZONE DETECTOR
OPERATION:
This radar was designed to detect pedestrians and cyclists waiting to cross
the road in order to make sure that the crossing stage is only authorised
when they are present in the waiting zone.
Its development is based on a time-of-flight distance measurement radar
technology capable of detecting mobile and stationary targets in a zone
whose dimensions can be adjusted by an Android application. Unlike the
optical sensors, it does not require the cleaning of the lens and maintains a
stable and reliable detection under all weather conditions.
The electromagnetic wave signal transmitted by the radar is reflected by
an object in its detection field, adjustable between 1 and 6m: by detecting
the reflected signal, it can determine the distance and position of the object.
Accuracy is granted by the operating frequency: 79 - 81 GHz.
STRONG POINTS:
¡ Temperature, moisture and dust without influence
¡ Huge performances under all exterior lighting conditions (even in total
darkness)
¡ Compact size thanks to the reduced size of the antenna and the MMIC
(Monolithic Microwave Integrated Circuit) technology
¡ Narrow detection beam
¡ Cost lower in relation to the LIDAR and other detection technologies
¡ Configuration easy on site thanks to the application
FEATURES:
› Frequency: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 - 81 GHz
› Modulation: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FMCW
. . . . . . . . . . . . . . . . . . . . (frequency modulated continuous wave)
› Power Supply: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-24VDC
› Energy consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 2.5 W
› Range and field . . . . . . . . . . . . Length of the field of vision: 1 - 6m
. . . . . . . . . . . . . . . . . . . . . . . . Width of the field of vision: ± 1.5m
› Measurement accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5cm
› Visual indication . . . . . . . . . . . . . . . . . . . . . . . . red LED: power ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . green LED: detection ON
› Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . 1x NO & 1x NC Relay
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1x digital input
› Mechanics . . . . . . . . . . Robust IP67 box and stainless steel support
› Dimensions: . . . . . . . . . . . . . . . . . . L: 73.6 x H: 107.9 x D: 17.2mm
› Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200g
› Working conditions . . . . . . . . . . . . . . . . . . . Temp.: -40 °C ~ +85 °C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Humidity: ≤ 90 %