A License Plate Recognition and Speed Detection System - Index of
A License Plate Recognition and Speed Detection System - Index of
A License Plate Recognition and Speed Detection System - Index of
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VII. State <strong>of</strong> the Art Commercial <strong>System</strong>s<br />
One <strong>of</strong> the first traffic radar systems was built by Automatic Signal Company for the<br />
Connecticut State Police in 1947. These early radar units were based on heavy, bulky vacuum<br />
tube technology <strong>and</strong> consisted <strong>of</strong> three parts; a 45 lb. box containing the transmitter-receiver, a<br />
strip-chart recorder used to produce a permanent record, <strong>and</strong> a calibrated analog meter to provide<br />
a reading in miles per hour. Originally, the transmitter-receiver was mounted on a st<strong>and</strong>-alone<br />
tripod or it was bolted to the hood <strong>of</strong> the patrol car. It is interesting to compare this description<br />
with figure 52, which shows today’s technology.<br />
Fig. 52 Modern Radar Gun<br />
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