Wavetronix Click 500 (programmable controller) (CLK-500) - User Guide - Manual (Page 81)

80 CHAPTER 9 • CLICK 512
The Click 512 compares the per-vehicle data from SmartSensor HD to a set of user-con-
figured speed and length thresholds. There are separate thresholds for each of the eight
possible outputs. The Click 512 also forwards data from the relevant lanes to the front serial
port for data logging and/or troubleshooting. If a detected vehicle exceeds or is less than
the given criteria, then an alert will be triggered on the digital output corresponding to that
channel (or to a Click 104 output). Digital outputs 1 and 2 are contact closure outputs and
can be wired to a traffic cabinet contact closure input or to an electrical relay. The Click 120
relay provides a simple way to turn on or off an AC or DC powered load based upon the
alert output.
Note
Wrong way detection is done using the under-speed condition. Once the under-speed
condition is selected and the condition is met, an alert will trigger through the con-
tact closure and an ASCII string will be transmitted through the DB-9 port.
A possible application for the Click 512 is to warn specific drivers of a potentially dangerous
roadway. If a vehicle is detected to exceed the user-configured speed and length thresholds,
the Click 512 can trigger a warning sign that tells the driver to slow down. For example, if
the length threshold is set to 13 ft. and the speed threshold is set to 65 mph, a vehicle that is
detected to be 14 ft. long and going 70 mph will trigger an alert, as would any vehicle that is
both faster than 65 mph or longer than 13 ft.
Note
Timing of the warning sign alert is important to the application. Three methods of
trigger synchronization are presented later in this chapter. Typically you will need a
distance of 300–600 feet between the sensor and the warning sign.
The Click 512 utilizes the Click Supervisor software for user configuration of vehicle speed
and length thresholds and output variables. Communication between the Click 512 and
Click Supervisor is easy to set up and use.
Physical Features
The Click 512 is based upon the Click 500 platform, so it has the same physical features as
the Click 500.