Page 35 - Signalite2023 ENG

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2. REINFORCED LED
SIGNALLING
2.5 Road detectors
2.5.A. SIZE DETECTOR
OPERATION:
¡ This radar was designed to identify moving vehicles which exceed a certain authorised height.
This system is generally installed near a bridge, tunnel or any other structure to be protected.
¡ Its operation is based on a four-plane laser scanner which improves its accuracy, thus avoiding
the activation of false alarms. The luminous beam, which is invisible to the human eye and is
96° wide, is projected towards the target before being sent back towards a lens which filters
out any parasitic illumination.
¡ This laser scanner is equipped with an internal heating system which prevents the formation
of condensation on the lenses.
¡ In addition to alerting in the event of exceeding the maximum height, the device can also
indicate in which lane the vehicle is located. Compared to the classic photoelectric cell systems
composed of distant transmitters and receivers, it offers a simplified installation since its laser
and control unit are placed on just one pole. In the same way, it is no longer necessary to
manage and adjust the different elements, you only need to install it on the centre line of the
lane to be monitored.
¡ The control unit is composed of an IP65 box containing: the electrical power supply, the CPU
and a communication interface
FEATURES
› Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Laser Scanner
› Laser wavelength . . . . . . . . . . . . . . . . . . . . . . 905nm - not visible
› Laser Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1
› Scanning angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96°
› Maximum detection distance and speed . . . . . . . . . 20m - 150km/h
› Minimum detection size . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mm
› Communication mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ethernet
› Alarm activation . . . . . . . . . . . . . . . . . . Relay contact, digital output,
› Software
› Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 or 24Vdc
› Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP65
› Temperature range:
Version 1: -20°C to +50°C
Version 2: -40°C to +60°C
ALARM
The radar can transmit an alarm in different forms: by relay type dry contact,
by digital output or by software protocol