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IIT Camera Systems
In Image Triggering Cameras
VIS-CAM 350 IIT
VIS-CAM 400 IIT
Document Version: A
Document P/N: 10657
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IIT Camera System Manual Notice The material contained in this manual consists of information that is proprietary to JAI Inc., and may only be used by the purchasers of the product. JAI Inc. makes no warranty for the use of its product and assumes no responsibility for any errors which may appear or for damages resulting from the use of the information contained herein. JAI Inc. reserves the right to make changes without notice. Microsoft, Windows XP, Windows 2000, Windows 98, Win
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IIT Camera System Manual WARNING Changes or modifications to this unit not expressly approved by the party responsible for FCC compliance could void the user’s authority to operate the equipment. VIS-CAM System Installation Manual JAI Inc. 625 River Oaks Parkway San Jose, CA 95134 Tel:(408) 383-0300 Tel:(800) 445-5444 Fax:(408) 383-0301 E-mail: trafficsales.americas@jai.com trafficsales.emea@jai.com www.jai.com December 10, 2008 iv Disclaimer
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IIT Camera System Manual Table of Contents Disclaimer Notice ................................................................................................... iii Table of Contents ................................................................................................... v List of Figures ....................................................................................................... vii List of Tables .............................................................
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IIT Camera System Manual vi Table of Contents
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IIT Camera System Manual List of Figures Figure 1. VIS-CAM 350 IIT overview ............................................................................ 12 Figure 2. Block Diagram of the IIT Camera ................................................................... 12 Figure 3. Camera front with beamsplitter and fibers ....................................................... 13 Figure 4. The sensitive region of the picture area ....................................................
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IIT Camera System Manual viii List of Figures
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IIT Camera System Manual List of Tables Table 1 Electrical Connections for the IIT Camera X2 connector ....................................... 22 List of Tables ix
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IIT Camera System Manual x List of Tables
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IIT Camera System Manual 1. In Image Triggering System 1 Introduction For a Quick Start Guide, please refer to appendix G at the end of this manual. 1.1 Document Overview This manual is a supplement to the Vehicle Imaging Subsystem 300/350/400 (VIS-CAM 300/350/400) manual. References are made to this manual wherever applicable. This manual can be downloaded from the JAI website. 1.2 IIT Overview. The IIT camera is an all-in-one Intelligent Traffic Surveillance camera
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IIT Camera System Manual 1.3 IIT Camera Overview Figure 1. VIS-CAM 350 IIT overview 1.4 Principle of Operation Figure 2. Block Diagram of the IIT Camera 12 Introduction
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IIT Camera System Manual The concept of the IIT Camera is to exploit the retro-reflective properties of the vehicle license plates. A retro-reflective surface returns the incoming light in the same direction it comes from. The IIT camera is equipped with a number of emitting infrared diodes that are positioned evenly across the camera lens. The light is frequency modulated. A beamsplitter is mounted in front of the CCD for distribution of the incoming light to both the CCD and an array
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IIT Camera System Manual Vehicles are detected from both driving directions (front or rear shots). The system will only work if the license plate is moving through the retro-reflective sensitive region of the picture area. Other parts of the vehicle being retro-reflective can cause generation of triggers. These parts can be the tail light or stickers of different kinds. Besides the special IIT functions, many of the I/O Board functionalities from VIS-CAM 300/350/400 are available. This
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IIT Camera System Manual 2 Preparing for installation 2.1 Preparation for installation As mentioned in the previous section is it essential for the function of the IIT Camera that the license plate moves through the sensitive region when the vehicle passes the camera. 2.1.1 Over Lane Positioning Over lane camera mounting is always employed when the road width being monitored contains more than two lanes of traffic, when a convenient overhead is already in place, or when
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IIT Camera System Manual Figure 6. Typical Over Lane Site Layout Plan The Light Sensor and Flash shown in Figure 6 are optional. If over lane mounting is not possible the camera can be mounted at the side of the road as close to the road as possible. 2.2 Performance of Trigger and Light Sensor function As mentioned in section 2.1.1 the performance of the camera is dependent on respecting installation parameters. These performance conditions have influence on both the trigger and th
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IIT Camera System Manual 3 Installation 3.1 Camera Dimensions Figure 7. IIT Camera Housing side view Figure 8. IIT Camera Housing front view Installation 17
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IIT Camera System Manual 3.2 Installing the Camera The camera is mounted using the same VIS Mount as VIS-CAM Systems (300/350/400). Please refer to section 3.2 in the VIS-CAM System Installation manual for camera mount template and mounting instructions. 3.2.1 Opening the Camera Housing The rear plate can be removed by loosening the two screws marked “1” below. Once they are loose they can be turned by fingers. The screws are retained by springs. When the rear plate is removed the
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IIT Camera System Manual 3.2.2 Attaching the Safety Tether A coated wire safety tether is provided for use in attaching the removable top lid to the gantry or pole. The tether has a loop at each end. First you should loop the tether around the gantry and hook one loop through the other as shown in figure A below. Figure A Next attach the tether to the lid using the pin on the right rear and the provided hardware as shown in figure B. Figure B Installation 19
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IIT Camera System Manual 3.2.3 Cable Connections The cable connections are the same as for VIS-CAM Systems (300/350/400) but the cable entry is different as shown in the picture below. Figure 9. IIT Camera Cable Entry It is very important that the outer cable shield is connected to the rear plate at the cable entry and that the shield around the Ethernet pairs are run to the orange terminal block as shown in the picture. Figure 10. Cable shield connection to chassis 20 Insta
