IIT Camera Systems In Image Triggering Cameras VIS-CAM 350 IIT VIS-CAM 400 IIT Document Version: A Document P/N: 10657
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.
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.
IIT Camera System Manual Table of Contents Disclaimer Notice ................................................................................................... iii Table of Contents ................................................................................................... v List of Figures ....................................................................................................... vii List of Tables .......................................................................................
IIT Camera System Manual vi Table of Contents
IIT Camera System Manual List of Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. VIS-CAM 350 IIT overview .........................................................
IIT Camera System Manual viii List of Figures
IIT Camera System Manual List of Tables Table 1 Electrical Connections for the IIT Camera X2 connector .......................................
IIT Camera System Manual x List of Tables
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.
IIT Camera System Manual 1.3 IIT Camera Overview Figure 1. 1.4 Principle of Operation Figure 2.
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 of optical fibers.
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.
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.
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.
IIT Camera System Manual 3 Installation 3.1 Camera Dimensions Figure 7. IIT Camera Housing side view Figure 8.
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.
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.
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.
IIT Camera System Manual Figure 11.
IIT Camera System Manual Figure 12. IIT I/O Board Power and Data Connector X2 signals Table 1 X2 Pin # 3.
IIT Camera System Manual 3.4 Flash The flash is optionally used for vehicle illumination at night. The electrical control signal connection to the IIT camera is from X1 on the IIT I/O Board. The signals are: Figure 13. IIT I/O Board Flash Connector X1 signals The electrical signals are the same as the VIS-CAM Systems (350/400) flash connector and the connections to the flash is as described in section 3.4 of the VIS-CAM System Installation manual.
IIT Camera System Manual 4 System Set-Up The proper way of deploying the camera, as described in section 4 of the VIS-CAM System Installation manual, also applies to the IIT Camera. The Ethernet connection to the setup PC is accessed by removing the cable between the EN Camera and the IIT I/O Board and connecting a RJ45 patch cable between the PC and the EN Camera. If the PC does not have a gigabit Ethernet interface the RJ45 patch cable must be a crossover.
IIT Camera System Manual 4.1 Properties setup when using built-in Light Sensor The Camera Properties for using the built-in Light Sensor Function is shown below. Figure 15. Unselect the TTL Trigger input in the Trigger section for the camera. Figure 16.
IIT Camera System Manual Figure 17. Set the value to 1.50 by manually typing the value 4.2 Properties setup when using External Light Sensor The Camera Properties for using the external Light Sensor Function is shown below. Figure 18. Trigger Selection Unselect the Serial Trigger input and select the TTL Trigger in the Trigger section for the camera.
IIT Camera System Manual Figure 19. Select Falling Edge in the Trigger Edge Select field Figure 20. Select Camera “ADR Control (using Light Sensor)” in the Camera ADR Control Figure 21. Set the Light Sensor IP address As described in the VIS-CAM System Installation manual section 4.
IIT Camera System Manual Figure 22. Set the value to 1.50 by manually typing the value 4.3 Settings for built-in Automatic License Plate Reader (ALPR) 4.3.1 ALPR Parameters If the camera was purchased with built-in ALPR reader, the parameter set up is described below. Figure 23. Image Acquisition Image 1 The LPR box is found by scrolling the bar on the right side all the way down. The configuration of the built-in ALPR is found in the Properties section 9. Figure 24.
IIT Camera System Manual Figure 25. ALPR Enabled The license plate character size must be set in accordance with the actual values. The character size can be found from the EN Setup Video Window by activating the “Freeze” buttom when a vehicle has been grabbed and then using the Measure Box to measure the height of the license plate characters. For a TS-1335EN camera mounted with a f=25mm or f=35mm lens a suitable range could be Minimum 15 and Maximum 45.
IIT Camera System Manual Figure 27. View TCP/IP In order to capture images, “Capture Images” must be selected as shown below. Figure 28.
IIT Camera System Manual For more details on FTP image transfer, see section 3.2 of User’s Guide EN Camera Series Caution: ENSetup Capture Mode and FTP Transfer Mode are exclusive to each other. Both modes should not be enabled simultaneously in the camera. 4.4 Setting the IIT I/O Board internal trigger parameters A number of variables can be setup in the IIT I/O Board for optimizing performance. These are illustrated in the block diagram in figure 19: IIT Camera Trigger Generation Principle.
IIT Camera System Manual Figure 30. IIT I/O Board communication The DAC values in commands C to J are set to 32 from the factory and it is normally not necessary to change these. The TTL Trigger pulse width is set by command A to a value between 01 and FF (255d) times 0.1 ms. = between 0.1 and 25.5ms. Factory setting is 1ms. The minimum time between two trigger pulses are set by command M to a value between 01 and FF (1-255ms).
IIT Camera System Manual Figure 31.
IIT Camera System Manual 5 Appendix A: Troubleshooting Fault description Possible cause 1.1 Iris is not fully open Open Iris 1.2 Illuminator is not properly aligned with the camera See EN Camera/Illuminator alignment procedure in Appendix C The supply voltage to the IIT Camera is too low causing weak IR illuminator Adjust the supply voltage to 24V±10% 1.4 The geometry of the installation is not in correct See section 2 for site layout 1.
IIT Camera System Manual 6 Appendix B: Focus Adjustment of Kowa 35mm The following describes the adjustment of the 35mm Kowa lens for best day/night performance using IIT IR Illuminator for night illumination. 1) Disconnect IR Illuminator from IIT IO Board connector X11: Figure 32. IR Illuminator connector 2) Start EN Setup and select repetitive trigger. Manually adjust the shutter and gain to useable image. 3) Adjust the focus on the lens to near position : Figure 33.
IIT Camera System Manual 7 Appendix C: VIS-CAM 400 IIT-2030 and VIS-CAM 400 IIT-2076 The VIS-CAM 400 IIT-2030 and VIS-CAM 400 IIT-2076 are made a little different from the VIS-CAM 350 IIT cameras. The picture below shows the VIS-CAM 400 IIT overview Figure 34. VIS-CAM400IIT-2030 and VIS-CAM400IIT-2076 overview Note: The TS-9725EN camera is not powered. Only fiber front is exploited. Do not adjust the mechanical mount for this camera.
IIT Camera System Manual 8 Appendix D: Connection to TNC-100 Floodlight The connection of TNC-100 floodlight for night time visible constant illumination is shown below. Figure 35. Connection to TNC-100 for VIS-CAM 400 IIT The on and off switching point are set via the camera properties in the EN Setup. The typical values are shown below. Figure 36.
IIT Camera System Manual 9 Appendix E: IIT I/O Board default settings The table below shows the default settings for microcontroller U12 on the I/O Board. The settings are accessible from the EN Setup via Serial Communication Terminal – Laser (IIT I/O Board). Inquiry syntax: # Change value syntax: # Name 38 CMD Value Hex Dec Description Trigger pulse width A 0A 10 Unit 0.1ms.
IIT Camera System Manual Besides these constants there are some commands for test purposes. These are: Name Cmd Syntax Description Disable checksum u #u98 Disables checksum commands until next power down Show input vector O #O Shows the activated fiber channels. If channel 2 and 3 are activated then the answer will be #O06 IR Illuminator off Z #Z00 Switches off the IR Illuminator IR Illuminator on Z #Z01 Switch on the IR Illuminator.
IIT Camera System Manual Besides these constants there are some commands for test purposes. These are: Name Cmd Syntax Description Disable checksum U $u99 Disables checksum commands until next power down Firmware version V $V Shows the installed firmware version for U1 The format of the answer is $S The temperature is shown in two’s complement.
IIT Camera System Manual 10 Appendix F: Quick Start Guide # 1 Description Find a place to mount the camera in a position where the vehicles will be passing through the reflection sensitive part of the picture Illustration 3 Sec. 1.5 Make sure that the geometry is correct: ¾ ¾ ¾ 2 Max height 7m Angle 20° — 30° Distance from camera to vehicle license plate 10—20m Sec.
IIT Camera System Manual 5 Connect the camera to the Ethernet port of an appropriate test PC. Switch on the camera power. Launch EN Setup application Sec. 4 6 Align camera mechanically to correct position by adjusting the VIS Mount and using the tools from EN Setup. Do not adjust the camera mount inside the housing. Sec. 4 7 Focus lens and make sure that the lens iris is fully open and no polarizer is mounted.
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