National Instruments PCI-1405 manuale d’uso

NI Vision NI PCI-1405 User Manual Single-Channel Color Im age Acquisition Device NI PCI-1405 User Manual February 2007 373687B-01[...]

Support Worldwide Technical Support and Product Info rmation ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Aust in, Texas 78759-3504 USA Tel: 512 683 0100 Worldwide Offices Australia 1800 300 800, Austria 43 0 662 45 79 90 0, Belgium 32 0 2 757 00 20, Brazil 55 11 3262 3599, Canada 800 433 3488, China 86 21 6555 78[...]

Important Information Warranty The NI PCI-1405 is warranted agains t defects in mate rials and workmans hip for a perio d of one year from t he date of shipme nt, as evidenced by receipts or other documentati on. National Instruments wil l, at its option, repair or replace equipment that proves to be defect ive during the warranty period. This warr[...]

Compliance Compliance with FCC/Canada Radio Frequency Interference Regulations Determining FCC Class The Federal Communications Commission (FCC) has rules to protect wireless co mmunications from inte rference. The FCC places digital electronics into two classes. These classes are known as Class A (for use in industrial-commercial locations onl y) [...]

Conventions The follo wing con ventions are used in this manual: » The » symbol l eads you through nested menu item s and dialog box options to a final action. The sequence File»Page Setup»Options directs yo u to pull down the File menu, select the Page Setup item, and select Options from the last dialog box. This icon denotes a n ote, which al[...]

© National Instruments Corpor ation vii NI PCI-1405 User Manual Contents Chapter 1 Introduction About the NI 1405 ............. ............................ ......................................................... ....... 1-1 Software Overview ......... .............. ............... .............. .............. .............. .............. ...[...]

Contents NI PCI-1405 User Manual viii ni.com Glossary Index[...]

© National Instruments Corpor ation 1-1 NI PCI-1405 User Manual 1 Introduction This chapter describes th e NI PCI-1405 (NI 1405) and the software programming choices. About the NI 1405 The NI 1405 is a PCI monochrome and color im age acquisition device that supports a diverse range of analog cameras from many camera companies. The NI 1405 acquires[...]

Chapter 1 Introduction NI PCI-1405 User Manual 1-2 ni.com Software Over view Programming the NI 1405 requires the NI-IMAQ driver soft ware for controlling the hardware . National Instruments also off ers the following application software packages for an alyzing and processing your acq uired images: • Vision Builder for Automa ted Inspection (AI)[...]

Chapter 1 Introduction © National Instruments Corpor ation 1-3 NI PCI-1405 User Manual National Instruments Application Software This section describes the National Instruments applicatio n software packages you can use to analyze a nd process the images yo u acquire with the NI 1405. Vision Builder for Automated Inspection NI Vision Builder for A[...]

Chapter 1 Introduction NI PCI-1405 User Manual 1-4 ni.com NI V ision Assistant is included wi th the V ision Development Module. V ision Assistant is an interactiv e proto typing tool for machine visi on and scientific imaging de velopers. W ith V ision Assistant, you can prototype vision applications quickly and test how various vision image proce[...]

© National Instruments Corpor ation 2-1 NI PCI-1405 User Manual 2 Hardware Over view This chapter presents an overview of the hardware functions on the NI 1405 and explains the operation of each function al unit making up the NI 1405. Functional Over view The NI 1405 features a high-speed data pat h optimized for the acquisition and formatting o f[...]

Chapter 2 Hardware Overv iew NI PCI-1405 User Manual 2-2 ni.com Video Acquisition The NI 1405 can acquire anal og color video in a variety of modes and then store the images in the onboard SDRAM memory or transfer the images directly to PCI system me mory. Video Decoder The NI 1405 supports NTSC and PAL video standards in composite format. The onbo[...]

Chapter 2 Hardware Overview © National Instruments Corpor ation 2-3 NI PCI-1405 User Manual Acquisition and ROI Circuitr y The acquisition and region-of-inter est (ROI) circuitry monitors t he incoming video signal s and routes the active pixels to the SDRAM memory. The NI 1405 can perform an ROI acquisition on all vi deo lines and frames. In an R[...]

Chapter 2 Hardware Overv iew NI PCI-1405 User Manual 2-4 ni.com Acquisition Window Control You can configure numerous parameters on the NI 14 05 to control the video acquisition window. A brief desc ription of each parameter follows: • Acquisition window —The NI 1405 allo ws y ou to specify a particular region of acti ve pixels and acti ve lin [...]

© National Instruments Corpor ation 3-1 NI PCI-1405 User Manual 3 Signal Connections This chapter describes cable connections for the NI 1405. Connectors The NI 1405 uses two BNC connectors on the front panel to connect to video data input and the external trigger signal. Figure 3-1 show s the position of the connectors. Figure 3-1. NI 1405 Connec[...]

Chapter 3 Signal Connections NI PCI-1405 User Manual 3-2 ni.com Signal Descriptions Table 3-1 describes the signal connections on the NI 1405 connectors. Table 3-1. I/O Connector Signals Signal Name Description VIDEO Composit e Video —This signal allows you to make a referenced single-ended (RSE) connection to the video channel. TRIG External tri[...]

© National Instruments Corpor ation A-1 NI PCI-1405 User Manual A Introduction to Color Color is the wa velength of the light we recei ve in our eye when we look at an object. In theory , the color spectru m is infinite. Humans, ho we ver , can see only a small portion of this sp ectrum—the portion that goes from the red edge of infrared light, [...]

Appendix A Introduction to Co lor NI PCI-1405 User Manual A-2 ni.com The perception of a color depends on ma ny factors, such as the follo w ing: • Hue , which is the perceiv ed dominant color . Hue depend s directly on the wav elen gth of a color . • Saturation , which is dependent on the amount of white li ght present in a color . Pastels typ[...]

Appendix A Introduction to Color © National Instruments Corpor ation A-3 NI PCI-1405 User Manual Hue, Saturation, Luminanc e, and Intensity Planes The NI 1405 can return an 8-bit Lumina nce (L) plane, but not Hue (H) or Saturation (S) planes. Y ou can use th e NI V ision Dev elopment Module or V ision Builder AI to con vert the RGB data from the N[...]

© National Instruments Corpor ation B-1 NI PCI-1405 User Manual B T echnical Support and Professional Ser vices V isit the following sections of the National Instruments W eb site at ni.com for technical support and professional services: • Support —Online technical support resources at ni.com/support include the following: – Self-Help Resou[...]

Appendix B T echnical Support and Professional Ser vices NI PCI-1405 User Manual B-2 ni.com • Declaration of Conformit y (DoC) —A DoC is our claim of compliance with the C ouncil of th e European Communities using the manufacturer’ s declaration of conformity . This system affords the user protection for electronic com patibility (EMC) and pr[...]

© National Instruments Corpor ation G-1 NI PCI-1405 User Manual Glossar y A acquisition windo w The image size specif ic to a video standard or camera resolution. acti ve line region The region of lines acti vely bein g stored. Def ined by a line start (relati ve to the vertical synchronization signal) and a line count. acti ve pixel region The re[...]

Glossary NI PCI-1405 User Manual G-2 ni.com composite video A type of colo r video transmission where synchron ization, luma, and chroma information are tran smitted on one analog signal. contrast A constant multiplication factor applied to the lu ma and chroma components of a color pixel in the color decoding process. D D A Q Data acquisition. (1)[...]

Glossary © National Instruments Corpor ation G-3 NI PCI-1405 User Manual F field For an interlaced video signal, a field is half the number of horizontal lines needed to represent a frame of video. The f irst field of a frame contains all the od d-numbered lines, the second field contains all of the ev en-numbered lines. FIFO First-in first-out me[...]

Glossary NI PCI-1405 User Manual G-4 ni.com interlaced A video frame composed of two in terleav ed fields. The number of lines in a field are half the number of lines in an interlaced frame. interrupt A computer signal indicating that the CPU should suspend its current task to service a designated acti vity . L luma The brightness informatio n in t[...]

Glossary © National Instruments Corpor ation G-5 NI PCI-1405 User Manual pixel count The total number of pixels be tween two horizontal synchronization signals. The pixel count determines the frequency of the pixel clock. R real time A property of an ev en t or system in which data is processed as it is acqu ired instead of being accumulated and p[...]

Glossary NI PCI-1405 User Manual G-6 ni.com trigger control and mapping circuitr y Circuitry that routes, mon itors, and driv es the external trigger line. Y ou can configure this line to start or stop acquisition on a rising or falling edge. TTL T ransistor -transistor logic. V VI V irtual Instrument. (1) A combi nation of hardware and/or software[...]

© National Instruments Corpor ation I-1 NI PCI-1405 User Manual Index A acquisition acquisition and R OI circuitry, 2-3 acquisition window control, 2-4 start conditions, 2-3 acquisition window, 2-4 B block diagram of NI 1405, 2-1 bus master PCI interface, 2-3 C calibration certificate (NI resources), B-2 color ov erview definition of color, A-1 im[...]

Index NI PCI-1405 User Manual I-2 ni.com I I/O connector (figure), 3-1 image representations 32-bit HSL and HSI, A-2 color planes, A-2 hue, satur ation, lumi nance, and int ensity planes, A-3 RGB, A-2 instrument driv ers (NI resources), B-1 inte gration with D A Q and motion co ntrol, 1- 4 intensity 32-bit HSL and HSI, A-3 definition, A-2 hue, satu[...]

Index © National Instruments Corpor ation I-3 NI PCI-1405 User Manual T technical support, B-1 training and certification (NI resources), B-1 TRIG signal (table), 3-2 trigger control and mapping circuitry, 2-2 troubleshooting (NI resources), B-1 V video acquisition, 2-2 video decoder, 2-2 VIDEO signal (table), 3-2 video standards, 2-2 W W eb resou[...]