
VIS-CAM System
1.3.3Illumination
1.3.3 (a) TNF-31 Flash
The
The
1.3.3 (b) White light LED.
JAI offers White LEDs mounted inside the camera enclosure. This option is usually employed when certain rare color combinations on license plates do not yield sufficient contrast with the
1.3.4VJP-300 Junction Panel.
The VIS
1.3.5RS485 Device Server.
The MOXA RS485 Device Server enables connection of RS485 serial devices to the Ethernet. The purpose for the MOXA RS485 Device Server in the VIS system is to convert Ethernet to RS485 communication for the
1.3.6ENSetup Program.
The ENSetup Program is an Ethernet based software tool specifically designed to assist the installer with VIS installation, and
1.4 Operational Overview.
During installation, the VISCAM and the optional light source are aimed at the area of the road where vehicles and their license plates are most likely to pass through. The Traffic Light Sensor continually registers the ambient light. The camera uses this information to set up exposure variables to ensure an optimal image of the vehicle and license plate. During transition from day to night the camera enables the optional
1.4.1Trigger Mode
•A vehicle passes by a vehicle detector, sending a trigger to the VIS.
•The VIS employs a trigger to snap a video image of the vehicle and license plate when they are optimally positioned in the camera field of view.
•The optional flash, if used, fires simultaneously with the camera to ensure correct exposure for the image if the ambient lightning is too low.
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4 | Preparing for Installation |